| 10th week of 2009 patent applcation highlights part 40 |
| Patent application number | Title | Published |
|---|
| 20090059890 | Spatial reuse in directional antenna systems - In directional antennas, spatial reuse involves enabling two communications to occur on the same link at the same time. The communications may be in the same or opposite directions. If no link of sufficient bandwidth is available that does not already have an active communication, a link with an active communication of sufficient bandwidth is located. Then an antenna training sequence may be implemented. A check determines whether the antenna training sequence was successful. If there was interference during the antenna training sequence, then the spatial reuse is not permitted. Otherwise, spatial reuse may be permitted. | 2009-03-05 |
| 20090059891 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD, AND COMPUTER PROGRAM - Access control based on CSMA is favorably carried out with the RTS/CTS method used together. | 2009-03-05 |
| 20090059892 | METHOD AND APPARATUS FOR ACCOMMODATING HIGHER ORDER MODULATION IN WIRELESS COMMUNICATION - A method and apparatus for reconfiguring a wireless transmit/receive unit (WTRU) are directed to receiving an active set update message indicating that a mode of operation allowing a certain modulation scheme is enabled or disabled and performing at least one of: performing a MAC reset procedure, updating a set of reference enhanced transport format combination indicators (E-TFCIs) and associated power offsets, determining actions related to E-DPCCH boosting, modifying information related to an enhanced dedicated channel (E-DCH), and modifying an index that indicates an E-DCH transport block size table. The update message includes at least one modified information element (IE). | 2009-03-05 |
| 20090059893 | CONFIGURATION OF OVERHEAD CHANNELS IN A MIXED BANDWIDTH SYSTEM - A method and apparatus for transmitting broadcast information in a multi-carrier communication system. The Sync Channel of the multi-carrier system is transmitted a 1.25 MHz channel bandwidth (i.e., over a single carrier), and to specify the preferred channels for the Sync Channel transmission instead of the preferred channels for the entire multi-carrier system. The Sync Channel Message will carry additional information indicating the center frequency of a multi-carrier system within a reserved set of frequency bands and indicating the frequency of a single carrier system in the reserved set of frequency bands. Considering the A block of the PCS band again, the preferred channels for Sync Channel transmission can be selected as channels 75, 150 and 225. This selection ensures that one of the preferred channels will always be used by any multi-carrier system regardless of the location of its center channel. | 2009-03-05 |
| 20090059894 | METHODS AND APPARATUS TO SELECT A PEERED VOICE OVER INTERNET PROTOCOL (VOIP) BORDER ELEMENT - Methods and apparatus to select a peered voice over Internet protocol (VoIP) border element are disclosed. An example method comprises receiving a session initiation protocol (SIP) message that includes an identifier representative of a location of a voice over Internet protocol (VoIP) access border element, querying a telephone number mapping (ENUM) database to identify two or more peered VoIP border elements, and selecting a one of the two or more peered VoIP border elements based on the identifier. | 2009-03-05 |
| 20090059895 | METHODS AND APPARATUS TO DYNAMICALLY SELECT A PEERED VOICE OVER INTERNET PROTOCOL (VOIP) BORDER ELEMENT - Methods and apparatus to select a dynamically peered voice over Internet protocol (VoIP) border element are disclosed. An example method comprises collecting data representative of a dynamic performance of a voice over Internet protocol network, prioritizing a selection of a peered border element based on the collected data, and modifying a telephone number mapping (ENUM) database based on the prioritized selection. | 2009-03-05 |
| 20090059896 | REMOTE CONNECTION TO A TELEPHONE LINE VIA INTERNET - A device receives a request from an Internet Protocol (IP)-based device to create a virtual extension of a plain old telephone service (POTS)-based telephone line, authenticates the IP-based device for association with the POTS-based telephone line, and creates the virtual extension of the POTS-based telephone line to the IP-based device when the IP-based device is authenticated. | 2009-03-05 |
| 20090059897 | IDENTITY-BASED INTERACTIVE RESPONSE MESSAGE - A system that can deliver a tailored message based upon characteristics surrounding an incoming communication. In one aspect, the system is a targeted voice-mail system that has the capability to provide a unique voice-mail depending upon the communication characteristics which include the identity of caller or the initiator of the call, whether a specific identity or within a group, the identity for which the call is targeted, and the intent of the caller. Additionally, other contextual factors can be considered in generating, locating and/or rendering a tailored response message. | 2009-03-05 |
| 20090059898 | Method and Apparatus for Signaling the Subscriber Type of IP and Non-IP Subscribers Using the Hostpart of the SIP URI - To identify a subscriber type of IP and non-IP subscribers with SIP without adding additional signaling elements to existing SIP headers, a method for identification of subscriber type with SIP makes use of the originating subscriber URIs are in form of userpart@hostpart. The userpart uniquely identifies the originating subscriber. A first switch identifies itself to a second switch through the hostpart. The first switch signals via SIP to the second switch the originating subscriber-type by using the hostpart to define a logical grouping identifying the originating subscriber-type. | 2009-03-05 |
| 20090059899 | OPTIMIZED PACKET PROCESSING ARCHITECTURE FOR BATTERY POWERED MOBILE COMMUNICATION DEVICE - A transceiver includes a peripheral device, a first processor configured to control an operation of the peripheral device, at least one second processor configured to transport data between the transceiver and at least one wireless network, and a third processor connected between the first processor and the at least one second processor. The third processor is configured to control the at least one second processor for executing a network operation independently of the first processor. | 2009-03-05 |
| 20090059900 | External System Access to Telephone Line through VOIP Telephony Device - A telephony device is configured to provide VoIP service at a customer premises and is also configured to provide an external system connected to the telephony device with the ability to seize a telephone line at the customer premises when needed. The telephony device includes an embedded MTA (EMTA), a telephone circuit, and a switch connector configured to connect the external system with the telephony device. When the external system is connected to the telephony device via the switch connector, the switch connector routes telephone signals between the EMTA and the telephone circuit though the external system, and the external system, such as an alarm system, may seize the line when needed. When the external system is not connected, the switch connector connects the EMTA and the telephone circuit. | 2009-03-05 |
| 20090059901 | VOIP network phone forwarding device and application thereof - A VOIP network phone forwarding device is used to forward a call of an extension to a dual-mode mobile terminal. The VOIP network phone forwarding device comprises a wireless network module, a network interface, a phone connection interface, and a processor. The wireless network module connects to a wireless network for signal transmission with the dual-mode mobile terminal via the wireless network. The network interface is coupled to a modem device for connecting to the Internet. The phone connection interface is coupled to a PBX, which is further coupled to several extensions. The processor is coupled to all the above components. When a dialing source dials a phone call to an extension, the processor forwards this call to the dual-mode mobile terminal via the wireless network or the Internet so that a user can answer this call. A mobile extension communication architecture can thus be realized to let users be able to answer any phone call anytime, anywhere. | 2009-03-05 |
| 20090059902 | IP TELEPHONE TERMINAL AND COMPUTER READABLE STORAGE MEDIUM - An IP telephone terminal and a method for controlling IP telephone terminal capable of performing IP telephone communication upon receiving information from a conversation application through a user interface provided with a microphone and a loud speaker when a conversation is to be performed with the microphone and the laud speaker. The IP telephone terminal is connected to an internet. The terminal has a mouse and a keyboard operable as an operation input device, and a microphone and a loud speaker operable as an audio input device. A first selecting unit selects the operation input device of an interface device, and a second selecting unit selects the audio input device of the interface device. A third selecting unit selects one of the interface devices. A first control part controls the first selecting unit so that the first selecting unit selects the operation input device of the interface device selected by the third selecting unit. A second control part controls the second selecting unit so that the second selecting unit selects the audio input device of the interface device selected by the third selecting unit. | 2009-03-05 |
| 20090059903 | HIERARCHICAL DATA COLLECTION NETWORK SUPPORTING PACKETIZED VOICE COMMUNICATIONS AMONG WIRELESS TERMINALS AND TELEPHONES - A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. The network accommodates real time voice transmission both through dedicated, scheduled bandwidth and through a packet-based routing within the confines and constraints of a data network. Conversion and call processing circuitry is also disclosed which enables access devices and personal computers to adapt voice information between analog voice stream and digital voice packet formats as proves necessary. Routing pathways include wireless spanning tree networks, wide area networks, telephone switching networks, internet, etc., in a manner virtually transparent to the user. A voice session and associate call setup simulates that of conventional telephone switching network, providing well-understood functionality common to any mobile, remote or stationary terminal, phone, computer, etc. | 2009-03-05 |
| 20090059904 | PROVIDING A NETWORK NODE WITH SERVICE REFERENCE INFORMATION - Service reference information is added to an IP telephony signaling protocol message and the IP telephony signaling protocol message is then sent to the network node in order to provide a network node using the IP telephony signaling protocol, e.g., SIP, with service reference information needed for billing purposes. | 2009-03-05 |
| 20090059905 | SYSTEM AND METHOD OF PROVIDING A HIGH-QUALITY VOICE NETWORK ARCHITECTURE - Embodiments of the invention include a system and method for providing high quality voice/sound communications over a local loop of a telephone network. The method aspect of the invention comprises receiving a voice signal, digitizing the voice signal into a high quality voice signal, utilizing sampling rates greater than 8000 samples per second and/or sample sizes greater than 8 bits per sample, negotiating voice processing characteristics between a customer premises equipment and a network element such as a softswitch, receiving speech from a user at a customer premises equipment according to the negotiation, converting the received speech into high bandwidth signal and transmitting the high bandwidth signal to a telephone local loop, transmitting the high bandwidth signal from the local loop to wideband node that packetizes the high bandwidth signal for transmission to a packet network and receiving the packetized signal from the packet network at a switch that switches between an on-network or off-network status. A voice over IP platform may also be used to route packetized signals from the packet network to either the telephone network or another packet network. | 2009-03-05 |
| 20090059906 | ROUTING OF TELECOMMUNICATIONS - A gateway ( | 2009-03-05 |
| 20090059907 | System, method and device for docking station for communication device - A docking station provides fixed mobile convergence and includes a docking interface for a communication unit, a transceiver for a fixed packet network, and/or a telephone interface to a public switched telephone network (PSTN) telephone. The method includes detecting if the communication unit, fixed packet network, and/or PSTN telephone is connected. If the fixed packet network is available and the communication unit connected, a connection is established between the two in response to a call initiated/received at the communication unit; packets are transferred so that calls on the communication unit are conducted over the fixed packet network. If the PSTN telephone and the communication unit are connected, a connection is established between the two in response to a call initiated at the PSTN telephone or received at the communication unit; protocols are interworked to permit calls placed/received on the PSTN telephone to be conducted over the cellular network. | 2009-03-05 |
| 20090059908 | Routing protocol with packet network attributes for improved route selection - A node for routing of calls in a network has an interface coupled to the network and at least one processor operable to route a packet-based call to a telephony destination in accordance with a protocol that includes a set of attributes that describe packet-network routing characteristics of one or more Internet Protocol (IP)-IP gateway devices in the network. The attributes are used by the at least one processor to specify a call route through an IP-IP gateway device for the packet-based call. The set of attributes include a first attribute that identifies a total administratively provisioned bandwidth capacity available on a given call route to accommodate application traffic, and a second attribute that identifies a current bandwidth that is available on the given call route to accommodate the application traffic at a given point in time. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b). | 2009-03-05 |
| 20090059909 | Method and system for loan application non-acceptance follow-up - An interface system ( | 2009-03-05 |
| 20090059910 | INTEGRATED CIRCUIT WITH INTERNAL COMMUNICATION NETWORK - An integrated circuit comprises a plurality of data processing circuits ( | 2009-03-05 |
| 20090059911 | Fast TV Channel Changing in IPTV Network - A router and method are described herein that provide a “fast leave behavior” by instantly aging out group and source records that are associated with the IGMPv3/MLDv2 protocols. In one embodiment, the router and method are part of a triple play service network including a bandwidth-limited Internet Protocol Television (IPTV) network in which the instantly aging out of group and source records is desirable to implement a fast TV channel changing feature (or fast leave behavior). | 2009-03-05 |
| 20090059912 | METHODS, SYSTEMS AND COMPUTER PRODUCTS TO INCENTIVIZE HIGH SPEED INTERNET ACCESS - Temporary increased broadband bandwidth services for high speed access and download of Internet websites are provided to end user DSL subscribers by a system and method to increase speed of accessing certain Internet websites to incentivize the end user DSL subscribers to purchase higher speed broadband services and to incentivize content providers to pay for the temporary increased broadband services. The speed category of a customer premises equipment turbo modem is controlled by either a wired or wireless serving center computer processor, based on either the wired or wireless serving center computer processor determining whether to download Internet and video content at a predetermined selected speed category. | 2009-03-05 |
| 20090059913 | METHOD AND SWITCH FOR ROUTING DATA PACKETS IN INTERCONNECTION NETWORKS - The invention falls within the technology of multistage interconnection network such as fat-trees, comprising at least one switch located at a stage (s) and configured to send, through an output port from a number (k) of output ports forming an ordered list, at least a data packet containing a destination address identified by a n-tuple with a plurality (n) of components (p | 2009-03-05 |
| 20090059914 | METHODS FOR THE SECURED INTERCONNECTION OF VNET SITES OVER WAN - One embodiment provides a method to interconnect virtual network segments (VNETs) defined for a local-area network (LAN) infrastructure separated by a wide-area network infrastructure. The technique involves the routing device at the LAN-WAN interconnection points to impose or dispose the VNET-shim, which encodes the VNET-id information in a Layer 4 portion of the packet. In a data plane, a new IP protocol value may be used to signify the presence of the VNET-shim followed by cryptography specific information in an IP packet. In a control plane, the routing protocol is expanded to exchange the routing information along with the VNET information. | 2009-03-05 |
| 20090059915 | SYSTEM AND METHOD OF AUTOMATING USE OF A DATA INTEGRITY ROUTINE WITHIN A NETWORK - A system and method of automating use of a data integrity routine within a network. In one form, a method of managing network communication can include initiating a first network quality inquiry within a packet-based communication protocol network using a network quality check routine of a packet-based communication protocol. The method can also include receiving a first network quality value in response to the first network quality inquiry. The method can further include activating a data integrity routine in response to comparing the first network quality value to a first network quality specification value. In another aspect, an information handling system can be operable to carry out the method. | 2009-03-05 |
| 20090059916 | METHOD, SYSTEM, AND APPARATUS FOR RELIABLE DATA PACKET RECOVERY IN A LINK LAYER OF A DATA CENTER ETHERNET NETWORK - Dropped packets are recovered in a link layer of a Data Center Ethernet (DCE) network. Data packets for transmission are stored in a replay buffer. Each data packet includes a header having a field including data indicating that the data packet is formatted for reliable recovery at the link layer. The data packets are transmitted to a receiver across a link layer in the DCE network. The receiver determines whether a data packet has been dropped. If a data packet has not been dropped, an acknowledgement signal is sent to the transmitter in another data packet across the link layer, indicating that the data packet has been received. If a data packet has been dropped, a non-acknowledgement signal is sent to the transmitter in the other data packet across the link layer, indicating that the data packet has been dropped. In response to receipt of the non-acknowledgement signal or no receipt of an acknowledgement signal after the timeout period, the dropped data packet is retrieved from the replay buffer and is resent to the receiver across the link layer. | 2009-03-05 |
| 20090059917 | SYSTEMS AND METHODS FOR RELIABLE MESSAGE DELIVERY OVER DIGITAL NETWORKS - Systems and methods reliably transmit a message from a sender to a receiver via a network. A reliability module is configured to determine a probability of delivering a packet from the sender to the recipient via the network. Mode selection logic determines transmission mode from a number of options based upon the probability of delivering the packet from the sender to the recipient. A formatting module is configured to provide a first push that includes the message and, in at least one of the operating modes, a number of redundancy packets formulated as a function of the contents of the message. The receiver acknowledges the packets received so that any dropped packets can be re-transmitted. The redundancy packets can be created using Reed-Solomon or other forward error-correcting codes to further increase the reliability of the message transmission when network conditions warrant. | 2009-03-05 |
| 20090059918 | INTELLIGENT CALL ROUTING - A call routing decision for connecting a call between source and target devices is based on the traffic type (e.g., facsimile, modem, voice). In some implementations, the traffic type is determined and stored (e.g., in a billing record). The traffic type can be used to connect, block or reroute subsequent calls of the same traffic type. | 2009-03-05 |
| 20090059919 | SYSTEM AND METHOD OF ZIGBEE COMMUNICATION FOR SELECTING AND GAINING ACCESS TO ZIGBEE NETWORK - A system and a method of Zigbee communication for actively selecting and accessing a Zigbee network. The Zigbee communication system includes multiple Zigbee coordinators forming multiple Zigbee networks for transmitting information on services of end-devices currently accessing each of the formed multiple Zigbee networks; and an end-device for receiving the information on the services, analyzing the received information on the services, selecting a predetermined one of the multiple Zigbee networks based on results of the analysis, and accessing the selected Zigbee network. Accordingly, the end-device can search services provided by other end-devices over a Zigbee network without gaining access to the Zigbee network, thereby reducing unnecessary resource consumption and wasted time caused by accessing and exiting each Zigbee network by a conventional end-device for service search. | 2009-03-05 |
| 20090059920 | METHOD FOR PROCESSING LMP PACKETS, LMP PACKET PROCESSING UNIT AND LMP PACKET PROCESSING NODE - The present invention discloses a method for processing LMP packet carrying a control message, which includes: receiving the LMP packet carrying a control message from a peer LMP node, determining whether a state of a control channel is an available state according to the LMP packet, and updating or resetting a HelloDeadInterval timer if the control channel is in the available state. When the control channel is in the available state, the processed LMP packet is sent to the peer node, a new LMP packet carrying the control message is generated and sent to the peer node, and a HelloInterval timer is updated or reset. The present invention further provides a LMP processing unit and a LMP packet processing node. | 2009-03-05 |
| 20090059921 | REPLICATING AND SWITCHING MULTICAST INTERNET PACKETS IN ROUTERS USING CROSSPOINT MEMORY SHARED BY OUTPUT PORTS - Multicast traffic is expected to increase in packet networks, and therefore in switches and routers, by including broadcast and multimedia-on-demand services. Combined input-crosspoint buffered (CICB) switches can provide high performance under uniform multicast traffic. However this is often at the expense of N | 2009-03-05 |
| 20090059922 | Systems and Methods for Multicast Communication - Embodiments of multicast messaging systems and methods are disclosed for facilitating the multicasting of messages and/or other content to a group of users such that users may send messages to a group. One embodiment includes a method of transmitting multicast messages, including receiving a first multicast message and an indication of a first message group from a first sending user, identifying a first set of recipients related to the first message group, and transmitting the first message to the identified recipients. Another embodiment includes a computer system configured to receive a multicast message designating a group and then to communicate the multicast message to intended recipients. | 2009-03-05 |
| 20090059923 | MULTICAST METHOD AND MULTICAST ROUTING METHOD - A multicast method includes joining a multicast group and forwarding a multicast data packet; during joining the multicast group, establishing multicast forwarding instruction information identified by a MFEC, on a network node of a distribution tree or a distribution sub-tree to which the MFEC pertains; and during forwarding the multicast data packet, forwarding multicast data packets of the same MFEC, according to the multicast forwarding instruction information. The invention further discloses a multicast method, including: classifying a collection of multicast data packets forwarded in the same mode into a MFEC; statically configuring multicast forwarding instruction information identified by the MFEC on a network node of a distribution tree or a distribution sub-tree to which the MFEC pertains; and forwarding the multicast data packets of the same MFEC, according to the multicast forwarding instruction information. The invention further discloses a multicast routing method. | 2009-03-05 |
| 20090059924 | PACKET TRANSMITTING METHOD, RELAY NODE AND RECEIVING NODE - A packet transmitting method wherein an explicit multicast packet can be transmitted with the consumption of communication bands of broadcast media being suppressed. According to this method, a link level multicast is used to transmit an explicit multicast packet only to next hop nodes that, even when receiving the explicit multicast packet through the link level multicast, will not output the same packet to the broadcast media, while a unicast is used to transmit an explicit multicast packet to the other next hop nodes. | 2009-03-05 |
| 20090059925 | Evaluation of Network Data Aggregation - In one embodiment, a method includes receiving topology data that indicates multiple communication links and multiple intermediate network nodes in communication based on the communication links. The intermediate network nodes include multiple leaf nodes that terminate communications and multiple transit nodes that facilitate the passage of information between leaf nodes. Aggregation point data is also received, which indicates all aggregation points on the intermediate network nodes. An aggregation point is an interface between a network node and a communication link, through which is output data that is a combination of data received through multiple different interfaces upstream of the interface. A set of paths is determined for which each path in the set connects a different pair of leaf nodes. A measure of aggregation is determined based on a number of aggregated paths of the set of paths. An aggregated path passes through an aggregation point. | 2009-03-05 |
| 20090059926 | Method for determining transmission path of router system - Disclosed is a method for determining a transmission path of a router system, in which a forwarding table of the router system is managed with a dualized address system including an absolute address indicating a physical port and a relative address indicating the place of the absolute address. Only the absolute address in a relative forwarding table can be changed without changing the relative address when traffic congestion occurs on a certain port of the router system or when load-balancing is needed, so that the router can actively cope with a real-time change of a destination address. | 2009-03-05 |
| 20090059927 | Host device interfacing with a point of deployment (POD) and a method of processing broadcast data - A host device interfacing with a point of deployment (POD) and a method of processing a broadcasting data are disclosed. A broadband interface unit received a MPEG transport packet through a cable. A demodulator demodulates the received MPEG transport packet. An IP physical interface unit for received a frame including an internet protocol (IP) packet through a network. A routing engine transforms the frame to an IP packet and routs the IP packet based on a destination information included in the frame. And a multiplexer generates IP MPEG packet and CableCARD MPEG packet by appending a Packet Header carrying identification information and packet identification information to each of the IP packet and the demodulated MPEG transport packet, multiplexes the IP MPEG packet and the CableCARD MPEG packet and sends the multiplexed IP MPEG packet and CableCARD MPEG packet to the POD. | 2009-03-05 |
| 20090059928 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, ABSENT PACKET DETECTING METHOD AND ABSENT PACKET DETECTING PROGRAM - Any packet loss is detected very quickly by means of only a series of sequence number in a multi-path environment where a transmitter and a receiver are connected to each other by way of a plurality of networks when no inversion of sequence arises in any of the networks. A communication apparatus includes a plurality of sequence buffers arranged at each network to accumulate packets until a sequence acknowledgement and an absence detecting section adapted to determine the occurrence of an absence of a packet when one or more packets are accumulated in all the sequence buffers. With this arrangement, the absence detecting section of the receiver monitors the packets staying in the sequence guaranteeing buffer arranged in each of the network, paying attention to the characteristic that packets are stored in the sequence buffers of all the networks when a packet loss takes place. | 2009-03-05 |
| 20090059929 | SCHEDULING METHOD AND APPARATUS FOR HIGH SPEED VIDEO STREAM SERVICE IN COMMUNICATION SYSTEM - A scheduling method and apparatus for providing a high speed video stream service in a communication system are provided. The method includes receiving power information for ensuring a minimum data rate from a Radio Network Controller (RNC) through Radio Resource Control (RRC) signaling, receiving power information for a variable data rate from a Node B through scheduling, and performing a high speed video stream service on the basis of the power information received from the RNC and the Node B. | 2009-03-05 |
| 20090059930 | SYSTEM AND METHOD FOR MANAGING VIRTUAL LOCAL AREA NETWORKS - A method for identifying VLANs associated with a network includes gathering actual network element configuration data from a plurality of network elements in the network, wherein the actual network element configuration data identifies one or more VLANs that at least some of the plurality of network elements are actually allocated to; correlating the actual network element configuration data with administrative VLAN data; and determining one or more VLANs that are not commonly identified in both the actual network element configuration data and the administrative VLAN data. A system includes a network monitoring system operable to gather actual network element configuration data from a plurality of network elements at one or more logical network sites, wherein the actual network element configuration data identifies one or more VLANs that at least some of the plurality of network elements are actually allocated to; and a VLAN services module operable to correlate the actual network element configuration data with administrative VLAN data, and further operable to determine one or more VLANs that are not commonly identified in both the actual network element configuration data and the administrative VLAN data. | 2009-03-05 |
| 20090059931 | Method, system and use thereof for controlling real time contiguous data in a packet switched data system, real time contiguous data service provided using said method - The present invention relates to a method of controlling real time contiguous data in a packet switched data stream comprising data packages. Controlling of said real time contiguous data is performed by retaining data packages of said packet switched data stream for disturbing contiguousness of said real time contiguous data after receiving thereof. The invention further relates to a system for controlling said real time contiguous data the use of such a system in a packet switched data network, and a real time contiguous data service provided using a method as described above. | 2009-03-05 |
| 20090059932 | METHOD OF DATA TRANSMISSION IN COMMUNICATION SYSTEM - A communication system includes a source node for transmitting data and general nodes that function as relay nodes for relaying the data or destination nodes for receiving the data. Data encoding is performed in each node of the communication system. The source node is linked to the general nodes by one or more independent paths. The number of independent paths from the source node to each of the general nodes is counted. A tap-proof index is calculated based on the maximum number of independent paths and the size of a set of elements formed by the encoded data. The security level against tapping is determined according to the value of the tap-proof index. | 2009-03-05 |
| 20090059933 | VALIDATING CUSTOMER IN-HOME NETWORK CONNECTIVITY USING MOCA BRIDGE MODE - A network terminal includes a bridge to interface the network terminal to a data channel linked to a central office, a first interface of a first type, and a second interface of a second type that is different from the first type of interface. A processor controls the network terminal to route data packets received via the first interface to the data channel via the bridge, when the network terminal is set to operate in a normal mode, and to route data packets received via the first interface to the second interface, when the network terminal is set to operate in a test mode. In an example embodiment, the first interface is an Ethernet interface and the second interface is a MoCA interface. | 2009-03-05 |
| 20090059934 | METHOD AND DEVICE FOR PROVIDING A BRIDGE IN A NETWORK - A method and device for providing a bridge between a distribution system and a wireless network device as provided increases network availability. According to one aspect, the method includes assigning a first wireless network device to a first wireless distribution system port in response to processing a first identification message received from the first wireless network device. A second wireless network device is then assigned to a second wireless distribution system port in response to processing a second identification message received from the second wireless network device after assigning the first wireless network device to the first wireless distribution system port. The bridge is then provided between the distribution system and the first wireless network device via the first wireless distribution system port. | 2009-03-05 |
| 20090059935 | Colored access control lists for multicast forwarding using layer 2 control protocol - In one embodiment, a method includes receiving, by an access node, multicast control parameters for white, black, and grey lists of multicast groups. The access node applies the multicast control parameters to an IGMP process running on a port associated with a subscriber. In response to receiving an IGMP message requesting joining a multicast group, the access node either: autonomously forwarding the multicast group on the port where the multicast group in on the white list, blocking the multicast group on the port where the multicast group in on the black list, or relying on a Layer 3 broadband network gateway (BNG) to instruct the access node whether to add a forwarding entry on the port for the multicast group where the multicast group in on the grey list. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. | 2009-03-05 |
| 20090059936 | Process for manging resource address requests and associated gateway device - The invention concerns a gateway device comprising means for connection to a first device and means for connection to a second device for obtaining a network address as a function of a network resource identifier provided by the second device, and means for providing a false network address in response to a network resource identifier provided by the first device in case a real network address cannot be provided. The means for providing a false network address are adapted to provide a distinct false network address for a distinct network resource identifier—when the real address becomes available, a request made on the distinct false address allows the first device to obtain the corresponding real network address. The invention also concerns an associated process. | 2009-03-05 |
| 20090059937 | Network system for guarantee QoS - Provided is a network system which is coupled to first and second computers including: at least one network node; a network device; and a resource management server. In the network system, QoS requirements are set for a communication between the first and second computers; the second computer measures QoS of the first communication, and transmits the control information including an identifier of the first communication and a result of the measurement of QoS to the first computer; the network device captures the control information, and transmits to the resource management server a message including the identifier of the first communication and the measurement result which are extracted from the captured control information; and the resource management server estimates a cause of failure in satisfying the QoS requirements if the measurement result does not satisfy the QoS requirements, and sets QoS for the network node judged to involve the cause. | 2009-03-05 |
| 20090059938 | High security backplane-based interconnection system capable of processing a large amount of traffic in parallel - An inter-network connection system is provided with a plurality of interface boards capable of processing traffic in a lower layer, an upper layer processing board capable of processing traffic in an upper layer, and an inter-board connection board capable of intervening in information transfer between the interface board and the upper layer processing board. The interface board has its input/output ports paired as port groups. When traffic is input through one input/output port of a port group, the traffic is output through the other input/output port of this port group. Only when the traffic is to be processed in the upper layer, the traffic is transferred from the interface board to the upper layer processing board. The inter-network connection system allows the amount of traffic processed in parallel to be increased with a high security configuration. | 2009-03-05 |
| 20090059939 | System, Method and Computer Program Product for Residential Gateway Monitoring and Control - A system, method and computer program product is provided that allows an end user to monitor and/or control various data streams appearing on one or more customer premises equipment (CPE) interfaces of a residential gateway, even where the data streams are of different types such as voice, video or computer data. The invention provides a user interface, implemented as part of a CPE device or as a stand-alone device, that is accessed by an end user to transmit commands to a residential gateway. A processor within the residential gateway executes gateway monitoring and control software that receives the commands and, in response, performs the necessary routing and conversion of data streams to execute the desired monitoring and/or control functions. | 2009-03-05 |
| 20090059940 | NETWORK ADDRESS TRANSLATION GATEWAY FOR LOCAL AREA NETWORKS USING LOCAL IP ADDRESSES AND NON-TRANSLATABLE PORT ADDRESSES - A network address translation gateway provides normal network translation for IP datagrams traveling from a local area network using local IP addresses to an external network, but suspends source service address (port) translation when the port is reserved for a specific protocol, such as the ISAKMP “handshaking” protocol that is part of the IPSec protocol model. ISAKMP exchanges require both source and target computers to use the same service address (port). By providing a network interface that does not translate the source service address (port), this gateway enables the initiation and maintenance of secure, encrypted transmissions using IPSec protocol between a local area network using local IP addresses and servers on the internet. | 2009-03-05 |
| 20090059941 | DYNAMIC DATA FILTERING - Networks, systems and methods for dynamically filtering data are disclosed. Streams of data may be buffered or stored in a queue when inbound rates exceed distribution or publication limitations. Inclusive messages in the queue may be removed, replaced or aggregated, reducing the number of messages to be published when distribution limitations are no longer exceeded. | 2009-03-05 |
| 20090059942 | METHOD AND APPARATUS FOR SCHEDULING PACKETS AND/OR CELLS - A system and method of scheduling packets or cells for a switch device that includes a plurality of input ports each having at least one input queue, a plurality of switch units, and a plurality of output ports. There is generated, by each input port having a packet or cell in its at least one queue, a request to output the corresponding packet or cell to each of the output ports to which a corresponding packet or cell is to be sent to, wherein the request includes a specific one of the plurality of switch units to be used in a transfer of the packet or cell from the corresponding input port to the corresponding output port. Access is granted, per output port per switch unit, to the request made on a first priority scheme. Grants are accepted per input port per switch unit, the accepting being based on a second priority scheme. Packets and/or cells are outputted from the respective input ports to the respective output ports, based on the accepted grants, utilizing the corresponding switch units identified in the accepted grants. | 2009-03-05 |
| 20090059943 | DATA PROCESSING SYSTEM - A data processing system enabling an outstanding-based variable flow control is provided. The data processing system includes a first semiconductor integrated circuit possessing an initiator and a second semiconductor integrated circuit possessing a target. The initiator transmits a request packet to the target, the target transmits a response packet to the initiator, and split transaction interface is practiced. The initiator includes an outstanding number counting circuit for counting an outstanding number defined by the difference in number between the request packets transmitted and the response packets received. The request packet transmission number is controlled so that the count value of the outstanding number counting circuit may not exceed the outstanding number to which the target can respond. The outstanding number is dynamically changeable to a suitable number so that the maximum latency from the issue of the request packet to the reception of the response packet is suppressed. | 2009-03-05 |
| 20090059944 | DISTRIBUTED PROCESSING SYSTEM, METHOD OF DISTRIBUTED PROCESSING, TERMINALS AND STORAGE MEDIA - A distributed processing system includes a first information processing device, two or more second information processing devices connected with the first information processing device via a first network, and the second information processing devices being connected with each other via a second network, wherein the first information processing device includes an input division unit that generates divided input data pieces by dividing an input data set, and a divided input distribution unit that transmits the divided input data pieces to the second information processing devices, and wherein the second information processing devices include a divided input transfer unit that transmits the divided input data piece to the second information processing device assigned as the base terminal from one or more of the second information processing devices assigned as a client terminal, and a divided input combining unit that combines the divided input data pieces to restore the input data set. | 2009-03-05 |
| 20090059945 | IP DEVICE, MANAGEMENT SERVER, AND NETWORK SYSTEM - An IP device (for example, network cameras | 2009-03-05 |
| 20090059946 | Method for Selective Backward Routing in a Workflow System - Techniques for selective backward routing in a workflow system are provided. For example, one technique includes obtaining workflow processing history information, obtaining one or more conditions for selection of the one or more valid return destinations, wherein the one or more conditions are defined in advance, and combining the workflow processing history information and the one or more conditions to determine the one or more valid return destinations in the workflow. Techniques are also provided for executing a valid return action in a workflow. | 2009-03-05 |
| 20090059947 | High-availability communication system - There is described a communication system for reliable communication between communication stations, wherein there is at least one communication connection between the communication stations, wherein the communication connection features at least two channels for transmitting payload data telegrams, wherein only one channel acts as primary channel for the communication at any time, and wherein the other channels are provided as backup channels. A status indicator in the payload data telegram is provided for the indication of information concerning which channel is primary channel or backup channel at a given time point, wherein the communication stations adopt as primary channel that channel for which, during receipt of the payload data telegrams, the most recent status change from backup channel to primary channel was detected by the communication stations. | 2009-03-05 |
| 20090059948 | Low Current Method For Detecting Presence of Ethernet Signals - A signal detection circuit for an Ethernet physical layer transceiver (PHY) device includes a first capacitor AC coupling a signal on the first receive terminal of the Ethernet PHY device to a first node; a second capacitor AC coupling a signal on the second receive terminal to a second node; re-biasing resistors for re-biasing the AC-coupled signals on the first and second nodes; first and second gain stages for amplifying the AC coupled signals; and a peak detect circuit. The peak detect circuit includes first and second diodes receiving the amplified signals from the gain stages to charge a peak detect capacitor. The signal detection circuit includes a comparator for comparing the voltage on the peak detect capacitor to a reference voltage and providing an output signal being indicative of the presence or absence of a signal on the first and second receive terminals of the Ethernet PHY device. | 2009-03-05 |
| 20090059949 | Method and system for data packet communication in wireless communication systems - The present invention provides a method and system for data packet communication in wireless communication systems. One embodiment involves determining if one or more data blocks pending transmission in a current transmission opportunity period over the channel will expire before the start of another transmission opportunity period, and if a data block will expire before the start of another transmission opportunity period, then extending the current transmission opportunity period by an extension period for transmitting the expiring data block during the extension period. One or more expiring packets are transmitted during the extension period on a best-effort basis. | 2009-03-05 |
| 20090059950 | INFORMATION POLLING METHOD, APPARATUS AND SYSTEM - The invention provides an information polling method, apparatus and system thereof, wherein a message gateway receives an information polling request from an application in an application client, and according to the received information polling request, the message gateway acquires at least one message requested by the application and calculates a reference polling cycle of the application, and sends the acquired message requested by the application and the reference polling cycle to the application. The application determines a polling cycle of a next poll according to a load condition of the application client and the received reference polling cycle. According to the invention, efficiency and quality of the information polling is improved, while the system is ensured to run normally, reducing the cases of message blocking and system breakdown which may occur in the existing situations. | 2009-03-05 |
| 20090059951 | PROGRAM CONTROL DEVICE - Provided is a program control device which switches, per timeslot, between threads to be executed. The program control device includes: a first interrupt creation unit which creates a first interrupt signal which designates a timeslot as a destination; and a first receiving unit which [i] does not receive the first interrupt signal if the timeslot as the destination is not a current timeslot, and [ii] receives the first interrupt signal if the timeslot as the destination is the current timeslot. | 2009-03-05 |
| 20090059952 | APPARATUS AND METHOD FOR MANAGING ACCESS TO ONE OR MORE NETWORK RESOURCES - An apparatus is provided that includes a processor configured to receive a captured traffic unit (CTU) intended for a network service, the CTU being one into which incoming traffic has been assembled based on a filter describing which incoming traffic to capture and how to assemble the respective incoming traffic into the CTU. The processor is also configured to determine whether to allow the CTU to pass to one or more applications configured to implement the respective network service based on a passlet including permissions to a particular user. The processor is further configured to instruct a firewall to allow the CTU to pass to the respective one or more applications or to reject the CTU based on the determination. In this regard, the processor is configured to perform the above functions under control of a security framework implemented in middleware between a user-level domain and a system-level domain. | 2009-03-05 |
| 20090059953 | COMMUNICATION SYSTEM, COMPUTER, AND METHOD FOR DETERMINING A COMMUNICATION PROTOCOL TO BE USED IN A COMMUNICATION SYSTEM - The invention relates to a communication system comprising at least one first communication network designed for communication according to a first protocol, at least one second communication network designed for communication according to a second protocol, and at least one third communication network designed for communication according to the first and second protocols. The at least one first communication network and/or the at least one second communication network and/or the at least one third communication network are coupled together for the exchange of messages. The inventive system also comprises a mobile computer designed for communication according to the first and second protocols, and a target computer which is designed for communication according to the first protocol and/or the second protocol, and is associated with the first, second or third communication network. The inventive communication system is designed in such away that when the mobile computer is connected to a network connection computer of the third communication network, before the establishment of a communication connection to the target computer, the protocol to be used for communication with the network connection computer is determined. | 2009-03-05 |
| 20090059954 | Method And System For Setting Alternative Device Classes Within The MTP Protocol - An MTP/PTP extension may enable MTP/PTP devices to determine which protocol and/or which protocol version to utilize for impending communication. For example protocol and/or protocol version may be requested with a MTP/PTP SetDeviceClass operation that may comprise DeviceClass and/or RequestedVersion parameters. A response to the request may specify a protocol and/or protocol version for impending communication. Moreover, a response may comprise a DeviceInfo dataset comprising one or more fields indicating the protocol and/or protocol version. In various embodiments of the invention, a protocol and/or protocol version may be determined based on a GetDeviceInfo operation. Determination of which protocol and/or which protocol version to utilize for communication between MTP/PTP enabled devices may occur during initiation of communication. | 2009-03-05 |
| 20090059955 | SINGLE CHIP PROTOCOL CONVERTER - A single chip protocol converter integrated circuit (IC) capable of receiving packets generating according to a first protocol type and processing said packets to implement protocol conversion and generating converted packets of a second protocol type for output thereof, the process of protocol conversion being performed entirely within the single integrated circuit chip. The single chip protocol converter can be further implemented as a macro core in a system-on-chip (SoC) implementation, wherein the process of protocol conversion is contained within a SoC protocol conversion macro core without requiring the processing resources of a host system. Packet conversion may additionally entail converting packets generated according to a first protocol version level and processing the said packets to implement protocol conversion for generating converted packets according to a second protocol version level, but within the same protocol family type. The single chip protocol converter integrated circuit and SoC protocol conversion macro implementation include multiprocessing capability including processor devices that are configurable to adapt and modify the operating functionality of the chip. | 2009-03-05 |
| 20090059956 | Network Protocol Converter - An arrangement includes an input to receive DTMF tones, logic to convert the DTMF tones to SMPP protocol, and an output to provide the SMPP protocol. | 2009-03-05 |
| 20090059957 | LAYER-4 TRANSPARENT SECURE TRANSPORT PROTOCOL FOR END-TO-END APPLICATION PROTECTION - Techniques for providing layer 4 transparent secure transport for end-to-end application protection are described herein. According to one embodiment, a packet of a network transaction is received from a client over a first network, where the packet is destined to a server of a data center having a plurality of servers over a second network. The packet includes a payload encrypted without encrypting information needed for a layer 4 of OSI (open system interconnection) layers of network processes. The layer 4 process is performed on the packet without having to decrypting the payload to determine whether the packet is eligible to access the destined server over the second network based on the unencrypted layer 4 information. Other methods and apparatuses are also described. | 2009-03-05 |
| 20090059958 | COMMUNICATION METHOD, COMMUNICATION SYSTEM, NODES AND PROGRAM - The task of the present invention is to reduce a load caused by a transmission of control information related to data packets and enhance a communication efficiency. | 2009-03-05 |
| 20090059959 | METHOD AND ARRANGEMENT TO INCREASE THE DATA TRANSMISSION FLOW RATE IN A COMMUNICATION SYSTEM - A method and apparatus to transfer data cells having an overhead section and a payload section via a communication medium from a transmitter to a receiver. Before transfer of a data cell, the overhead section of the data cell is translated into a shortened overhead section, known both on the transmitter and the receiver sides, and upon reception of the data cell, the shortened overhead section is translated again into the overhead section. | 2009-03-05 |
| 20090059960 | VOICE AND DATA EXCHANGE OVER A PACKET BASED NETWORK WITH TIMING RECOVERY - A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of exchanging voice signals between a switched circuit network and a packet based network. The signal processing system also includes a data exchange capable of exchanging data signals modulated by a voiceband carrier on the switched circuit network with unmodulated data signal packets on the packet based network. The data exchange is performed by demodulating data signals from the switched circuit network for transmission on the packet based network, and modulating data signal packets from the packet based network for transmission on the switched circuit network. The call discriminator is used to selectively enable the voice exchange and data exchange. | 2009-03-05 |
| 20090059961 | MOBILE CHANNEL ESTIMATION ALGORITHM FOR DVB-H COFDM DEMODULATOR - A mobile channel estimation algorithm is disclosed, for use in a DVB-H coded OFDM demodulator. The mobile channel estimation algorithm estimates the mobile channel transfer function, overcoming many of the delay spread limitations without using time filtering and without having to collect many OFDM symbols. Once the channel estimate has been found for each symbol, equalization and inter-carrier-interference cancellation may be carried out relatively easily using known methods. The mobile channel estimation algorithm may be used in DVB-H as well as in other areas of OFDM. | 2009-03-05 |
| 20090059962 | SYNCHRONIZING RELATED DATA STREAMS IN INTERCONNECTION NETWORKS - A method and apparatus for synchronizing related data streams in interconnection networks. Some embodiments of an apparatus include a transmitter to transmit a data stream to a second apparatus, where the transmitter transmits a data packet to the second apparatus. The apparatus further includes a clock, with the apparatus providing a first timestamp for the data packet using the clock upon transmission of the data packet. The apparatus includes a receiver to receive responses from the second apparatus, with the apparatus providing a second timestamp upon receiving a returned packet from the second apparatus, with the returned packet containing timestamps for the receipt and transmission of the packet by the second apparatus. The apparatus includes a network unit to direct the operation of the apparatus, the network unit to determine a start time for decoding of the data stream by the second apparatus based at least in part on the timestamps for the packet. | 2009-03-05 |
| 20090059963 | LINE TERMINAL FOR DETERMINING OPERATIONAL STATUS OF A U INTERFACE - A line terminal for determining operational status of a U interface includes a time presetting module, a current detecting module, a cycle selecting module, a timer, and a synchronization determining module. The time presetting module is for presetting a plurality of time cycles. The current detecting module is for detecting a loop current flowing via the U interface. The cycle selecting module is for selecting a time cycle from the plurality of time cycles. The timer is for timing during the time cycle. The synchronization determining module is for determining if a line terminal has been synchronized with a digital service unit. The operational status of U interface is determined to be working normally when the line terminal has been synchronized with the digital service unit. A method for determining the operational status of U interfaces is also provided. | 2009-03-05 |
| 20090059964 | APPARATUS AND METHOD FOR SYNCHRONIZING TIME INFORMATION USING KEY RE-SYNCHRONIZATION FRAME IN ENCRYPTION COMMUNICATIONS - Provided are an apparatus and method for synchronizing time information of both transmitting and receiving side using a key re-synchronization frame in encryption communications that require algorithm synchronization. The apparatus for synchronizing time information using a key re-synchronization frame includes: a transmitter including an input unit for receiving a voice, a first vocoder for encoding the received voice, a frame generation unit for generating a frame with respect to the encoded voice data and a frame transmitting unit for transmitting the frame to a receiver; and the receiver including a frame receiving unit for receiving the frame transmitted from the transmitter, a frame analyzer for identifying a type of the received frame and analyzing information included in a key re-synchronization frame to calculate a time difference between a transmitting side and a receiving side, a second vocoder for decoding the voice data in the frame to be vocalized, and an output unit for outputting the vocalized voice. | 2009-03-05 |
| 20090059965 | METHOD AND SYSTEM FOR SUPPORTING NETWORK SHARING AND DATA SYNCHRONIZATION SIMULTANEOUSLY - A method and a system for simultaneously supporting network sharing and data synchronization are provided for a first operating system (OS) and a second OS, wherein the first OS is connected to a network. The present method establishes a virtual network between the first OS and the second OS. Then, the second OS is connected to the first OS through the virtual network, so as to connect to the network through the first OS. The virtual network can also be used for synchronizing data of the first and second OS. As a result, the convenience of using different OS at the same time can be improved. | 2009-03-05 |
| 20090059966 | System and method for transferring much more information in optic fiber cables by significantly increasing the number of fibers per cable - The present invention enables putting much more optic fibers per cable, such as for example even 1,000 or 10,000 times more than the prior art, with an increase in cost that is orders of magnitude smaller. One of the most important variations is using multi-fiber flexible flat jackets that can move freely within the cable's pipe, preferably only in one direction. Preferably at certain intervals (for example every few dozen centimeters or more or 1 or 2 meters or more) the flat jackets are preferably stitched together to each other and/or for example glued and/or otherwise coupled to each other in a way that preferably does not apply pressure to the optic fibers, and preferably are also coupled, preferably at the stitch position, also to the cable, in order to prevent undesired sliding movement of the jackets against each other and/or against the pipe and/or rotating out of orientation. | 2009-03-05 |
| 20090059967 | Electro-Optic Bragg Deflector and Method of Using It as Laser Q-Switch in a Q-Switched Laser and a Q-Switched Wavelength-Conversion Laser - The configurations of an electro-optic Bragg deflector and the methods of using it as a laser Q-switch in a Q-switched laser and in a Q-switched wavelength-conversion laser are provided. As a first embodiment of the present invention, the electro-optic Bragg deflector comprises an electrode-coated electro-optic material with a spatially modulated electro-optic coefficient. When a voltage is supplied to the electrodes, the electro-optic material behaves like a Bragg grating due to the electro-optically induced spatial modulation of the refractive index. The second embodiment of the present invention relates to an actively Q-switched laser, wherein the electro-optic Bragg deflector functions as a laser Q-switch. The third embodiment of the present invention combines the Q-switched laser and a laser-wavelength converter to form a Q-switched wavelength-conversion laser, wherein the EO Bragg deflector can be monolithically integrated with a quasi-phase-matching wavelength converter in a fabrication process. | 2009-03-05 |
| 20090059968 | INJECTION-SEEDED MONOLITHIC LASER - An injection seeding laser system in which the seeded laser has a monolithic structure without any moving parts. The seeder emits light whose wavelength is swept in a radio frequency (RF) over a range that covers one or more longitudinal mode(s) of the seeded laser, which eliminates the need for active cavity length control and phase locking between the injected and output signals. The gain medium of the seeded laser is an active medium whose population is substantially inversed in response to an excitation, which can be electrical or optical. Time synchronization between the injected seeds and the triggering signal to the slave is generally not required. The present invention enables fiber MOPO that produces high power laser pulses in an efficient and cost-effective manner. | 2009-03-05 |
| 20090059969 | Laser-Beat-Wave Photocathode Electron Accelerator And Electron Radiation Apparatus Using The Same - An electron radiation apparatus is provided. The electron radiation apparatus includes a beat-wave laser system generating a laser beat wave, an electron emitter emitting a density-modulated electron current induced by the laser beat wave, an electron accelerator accelerating the density-modulated electron current and generating a periodically bunched electron beam, and a radiation device receiving the periodically bunched electron beam and generating an electron radiation with a radiation frequency matched to one of the harmonics of the bunching frequency of the periodically bunched electron beam. | 2009-03-05 |
| 20090059970 | Mode Hopping Swept Frequency Laser for FD OCT and Method of Operation - A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample. | 2009-03-05 |
| 20090059971 | Linearized Swept Laser Source for Optical Coherence Analysis System - A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample. | 2009-03-05 |
| 20090059972 | METHOD AND SYSTEM FOR SWITCHING OF TUNABLE LASERS - The invention provides a method and laser system for switching from a current operating point to a new operating point of the laser, the laser operating at a particular wavelength and includes a source channel and destination channel. The system switches and locks the output wavelength of a laser at ultra fast time scales (<50 ns) and compensate for degradation in the laser, and thermal transients in the device during the switching to ensure that within a certain time the laser has switched its wavelength to another wavelength within a specific accuracy and is not dependent on the previous wavelength of the laser. | 2009-03-05 |
| 20090059973 | WAVELENGTH TUNABLE LIGHT SOURCE, CONTROL METHOD AND CONTROL PROGRAM THEREOF, AND OPTICAL MODULE - To improve optical power detection accuracy without increasing size, etc. of a device, when controlling a plurality of light variable parts such that the sum of a plurality of optical powers becomes the minimum. Provided is a wavelength tunable light source for changing the wavelength of light by using a multiple resonator including two or more coupled resonators with different optical path lengths from each other. The light source includes: a single or more light variable part for changing transmittance of the resonators; photosensor parts which detect each light outputted from the two or more resonators by each of the resonators as optical powers being converted into electric power values; and a control unit which adds the optical powers detected by the photosensor parts by each resonator, and controls changes in the transmittance by the light variable parts such that the sum of the added optical powers becomes the minimum. | 2009-03-05 |
| 20090059974 | FREQUENCY-CONVERTED HIGH-POWER LASER WITH RECIRCULATING POLARIZATION CONTROL - A frequency-tripled laser-resonator has three resonator-branches. The branches are optically connected with each other by one or more polarization-selective devices. Unpolarized fundamental radiation is generated by optically pumping a gain-element in one branch of the resonator. The polarization-selective device provides that radiation in the other branches is plane-polarized, with the polarization planes of radiation entering the branches perpendicular to each other. Two optically nonlinear crystals are located in one of the branches of the resonator in which the fundamental radiation is plane-polarized and arranged to generate third-harmonic radiation. Three-branch resonators including two gain-elements having a optical relay therebetween, and a three-branch ring-laser-resonator are also disclosed. | 2009-03-05 |
| 20090059975 | LASER MODULE FOR PROJECTION DISPLAYS - A laser module with a linear laser diode array includes multiple, mutually separated laser cells. A nonlinear optical material serves to double the frequency of the radiation emitted by the laser cells. The linear laser diode array and the nonlinear optical material are so positioned relative to each other that the resulting frequency-doubled radiation propagates, within the nonlinear optical material and essentially within mutually separated columns associable with the laser cells, both in the direction of the radiation emitted by the laser cells and in the opposite direction. The laser module includes optical elements which divert the bidirectionally propagating frequency-doubled radiation in a manner whereby, upon diversion between the columns in the respective other direction, the radiation propagates in the nonlinear optical material, so that frequency-doubled light ultimately exits the nonlinear optical material in only one direction. | 2009-03-05 |
| 20090059976 | LASER MODULE AND METHOD FOR ADJUSTING OPTICAL AXIS OF THE SAME - A laser module capable of easy optical axis adjustment between the very small waveguide in a short period of time, and a method for adjusting an optical axis thereof. The laser module includes a laser device LD; an optical waveguide device SHG equipped with a waveguide; lenses L | 2009-03-05 |
| 20090059977 | GAIN MEDIA EDGE TREATMENT TO SUPPRESS AMPLIFIED SPONTANEOUS EMISSION IN A HIGH POWER LASER - A novel method and apparatus for suppressing ASE and/or parasitic oscillation modes in a laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges to a predetermined electromagnetic absorbing material arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE, parasitic oscillation modes and/or residual pump energy can be effectively suppressed. | 2009-03-05 |
| 20090059978 | Laser Diode Control Method, Laser Diode Control Device, and Information Recording/Playback Apparatus - Even though a laser diode is within the operation guarantee temperature range, the rise time characteristics required to protect and maintain the writing quality right away may not be present at a lower temperature. By sufficiently increasing the rise time, a laser diode control method of the present invention makes it possible to write readily. A laser diode control device includes a temperature sensor for detecting temperature of a laser diode. When a detected temperature by the temperature sensor is equal to or below a predetermined value within the operation guarantee temperature range, a seek motor controls the position of a pickup to move the pickup to a region outside a recording region of a recording medium. In this way, a current exceeding a threshold current value is supplied to the laser diode, and the writing operation starts after the laser diode temperature is increased up to a level where the rise time characteristics required to protect and maintain the writing quality is present. | 2009-03-05 |
| 20090059979 | OPTICAL TRANSMISSION MODULE AND OPTICAL TRANSMISSION SYSTEM - The present invention provides an optical transmission module and an optical transmission system including a plurality of components including a light-emitting device mounted on a holding unit, capable of restraining a distortion caused by a temperature difference between top and bottom faces of a temperature adjusting unit that performs temperature adjusting for the light-emitting device, the holding unit and the like and capable of maintaining stable optical performance. For such exemplary object, an optical transmission module includes: a holding unit, on which a plurality of components including at least a light-emitting device is mounted; a temperature adjusting unit for adjusting temperature of at least the holding unit and the light-emitting device; and a heating unit provided inside the holding unit. | 2009-03-05 |
| 20090059980 | HIGH-STABILITY FREQUENCY REFERENCE BASED ON SELF-LOCKED ALKALI-VAPOR LASER - Embodiments of the invention are directed to an atomic-based frequency reference that includes an architecture that eliminates the need for local oscillator components and instead is implemented with a “photonic local oscillator,” that provides for a relatively low power consumption, compact, atomic clock/frequency reference. Such a system is based on a laser cavity which contains an alkali-vapor-cell within the laser cavity. The laser cavity is designed to oscillate in two or more optical wavelengths, with the frequency difference of these lasing wavelengths equal to the atomic hyperfine resonance frequency. Embodiments of the system can include relatively few elements, namely: a) an optical gain element with an emission band centered at the atomic absorption band; b) collimating optics; c) an atomic vapor cell; and d) a cavity end mirror. Optionally, specific polarization optics may be used depending on the specifics of the optical pumping. | 2009-03-05 |
| 20090059981 | DRIVE CIRCUIT FOR SEMICONDUCTOR LIGHT EMITTING ELEMENT, AND LIGHT SOURCE DEVICE, LIGHTING DEVICE, MONITOR DEVICE, AND IMAGE DISPLAY DEVICE USING THE DRIVE CIRCUIT - A drive circuit for driving a semiconductor light emitting element includes a board, a first pattern formed in a first layer of the board so as to be electrically connected to an anode of the semiconductor light emitting element, and a second pattern formed in a second layer of the board so as to be electrically connected to a cathode of the semiconductor light emitting element, and the first pattern and the second pattern are formed so as to overlap with each other when viewed in a direction along a normal line of the board. | 2009-03-05 |
| 20090059982 | Nanowire devices and systems, light-emitting nanowires, and methods of precisely positioning nanoparticles - A radiation-emitting device includes a nanowire that is structurally and electrically coupled to a first electrode and a second electrode. The nanowire includes a double-heterostructure semiconductor device configured to emit electromagnetic radiation when a voltage is applied between the electrodes. A device includes a nanowire having an active longitudinal segment selectively disposed at a predetermined location within a resonant cavity that is configured to resonate at least one wavelength of electromagnetic radiation emitted by the segment within a range extending from about 300 nanometers to about 2,000 nanometers. Active nanoparticles are precisely positioned in resonant cavities by growing segments of nanowires at known growth rates for selected amounts of time. | 2009-03-05 |
| 20090059983 | NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE - A nitride semiconductor light-emitting device is provided including: a substrate made of a nitride semiconductor; a semiconductor layer made of a nitride semiconductor containing a p-type impurity, the semiconductor layer being formed as contacting an upper surface of the substrate; a first cladding layer made of a nitride semiconductor containing an impurity of a first conductivity type, the first cladding layer being formed on the semiconductor layer; an active layer formed on the first cladding layer; and a second cladding layer made of a nitride semiconductor containing an impurity of a second conductivity type, the second cladding layer being formed on the active layer. | 2009-03-05 |
| 20090059984 | Nitride-based semiconductor light-emitting device - A nitride-based semiconductor light-emitting device includes at least one n-type nitride-based semiconductor layer, an active layer having a quantum well structure, and at least one p-type nitride-based semiconductor layer successively stacked on a substrate, the active layer including an InGaN well layer and a barrier layer containing at least one of GaN and InGaN and having a light-emission wavelength in a range of 430 nm to 580 nm, the well layer having a thickness in a range of 1.2 nm to 4.0 nm, and the barrier layer being more than 10 times and at most 45 times as thick as the well layer. | 2009-03-05 |
| 20090059985 | EL SEMICONDUCTOR DEVICE - An n-type cladding layer structure which has good luminescence properties without the use of substances corresponding to RoHS Directive and a high Cl-doping efficiency, i.e. which facilitates the manufacture of a semiconductor optical element and device with low crystal defects and high reliability, and an active layer and a p-type cladding layer therefor are provided. The n-type layer being lattice matched to an InP substrate and containing Group II-VI compound as a main ingredient is a Group II-VI compound semiconductor, in which the Group II elements consist of Mg, Zn, and Be and the Group VI elements consist of Se and Te. The n-type layer of the present invention is characterized by a large energy gap, high energy of the bottom of a conduction band that is effective for suppress the Type II luminescence, high carrier concentration, and low crystal defects attributed to a good quality crystallinity. | 2009-03-05 |
| 20090059986 | SEMICONDUCTOR LIGHT EMITTING ELEMENT - A semiconductor light emitting element includes a first clad layer of a first conductivity type provided on a substrate; an active layer provided on the first clad layer; a second clad layer of a second conductivity type provided on the active layer, an upper portion of the second clad layer implements a ridge extending in a predetermined direction; a pair of first current block layers provided on the second clad layer sandwiching the ridge along the extending direction; and a pair of second current block layers provided between the first current block layers on the second clad layer and at sidewalls of the ridge to be contacted with the first current block layers, sandwiching selectively a region including an edge of the ridge, the second current block layers having a refractive index larger than the first current block layers at an emission peak wavelength of the active layer. | 2009-03-05 |
| 20090059987 | MONOLITHIC OPTO-ISOLATORS - Monolithic opto-isolators and arrays of monolithic opto-isolators are disclosed. The monolithic opto-isolators are manufactured in a single semiconductor wafer where they may be tested at the wafer level before each opto-isolator is singulated from the wafer. The monolithic opto-isolators include a VCSEL monolithically produced adjacent to a photodiode where an axis of optical signal transmission of the VCSEL is substantially parallel to an axis of optical signal reception by the photodiode. | 2009-03-05 |
| 20090059988 | SEMICONDUCTOR LASER AND SEMICONDUCTOR OPTICAL INTEGRATED DEVICE - A semiconductor laser includes an optical waveguide formed on a semiconductor substrate and capable of generating gain by current injection, and a diffraction grating having a phase shift and provided along the optical waveguide over the overall length of the optical waveguide on the semiconductor substrate. The semiconductor laser is configured such that a Bragg wavelength in a region in the proximity of each of the opposite ends of the optical waveguide is longer than a Bragg wavelength in a region in the proximity of the phase shift in a state in which current injection is not performed for the optical waveguide. | 2009-03-05 |
| 20090059989 | OPTOELECTRONIC CIRCUIT WITH A PHOTORECEPTOR AND A LASER DIODE, AND MODULE COMPRISING THE SAME - The optoelectronic circuit includes a photoreceptor ( | 2009-03-05 |
