43rd week of 2008 patent applcation highlights part 33 |
Patent application number | Title | Published |
20080259882 | Determining a WLAN Regulatory Domain - A mobile station is in a wireless local area network ‘WLAN’ environment and receives beacon frames that lack any WLAN regulatory information. The mobile station nonetheless determines a WLAN regulatory domain and configures the physical layer of its WLAN interface for operation in that WLAN regulatory domain. | 2008-10-23 |
20080259883 | Method and System for Client-Driven Channel Management in Wireless Communication Networks - A method and system for assigning channels to a plurality of access points (APs) of a wireless communication network is disclosed. The method includes obtaining first information regarding first interference experienced by a first client due to multiple APs being positioned in proximity of that client, and obtaining second information regarding second interference experienced by either the first client or a first of the APs with respect to which the first client is associated, where the second interference is due either to others of the APs that are in proximity to the first AP, or to others of the clients that are in proximity to either the first client or the first AP. Additionally, the method further includes determining channel assignments for the plurality of APs based upon each of the first and second information. | 2008-10-23 |
20080259884 | IMS Network-Based Multimedia Briefcase - A system for managing multimedia is provided. The system includes an IMS (Internet Protocol Multimedia Subsystem) network that has a media server and a Call Session Control Function (CSCF) server. The system includes a data store that is in communication with the IMS network. The system also includes an application configured to promote storing multimedia data to the data store. The multimedia data is created by a client. The client communicates with the CSCF and the multimedia server to promote providing the multimedia data for storage to the data store and to promote retrieving the multimedia data stored on the data store. | 2008-10-23 |
20080259885 | DUAL MODE DEVICE WITH MAC ADDRESS CAPTURE AND PAIRING - Seamless connectivity by a user device between a licensed and an unlicensed network is provided through capturing of MAC address information relating to one or more access points servicing the licensed and/or the unlicensed networks. One or more access points can be chosen as a designated access point. If the access point is available for communication with the device and other device criteria is met, the access point is designated. If designated, when the device is in vicinity of the access point seamless and transparent connectivity is automatically established with that access point. | 2008-10-23 |
20080259886 | Plain Old Telephony Equivalent Services Supported Via Unlicensed Mobile Access - An access point ( | 2008-10-23 |
20080259887 | SYSTEMS AND METHODS FOR PRESENTING MULTIMEDIA OBJECTS IN CONJUNCTION WITH VOICE CALLS FROM A CIRCUIT-SWITCHED NETWORK - The present invention provides systems and methods for presenting a multimedia object to a handset in conjunction with voice call from a circuit switched (CS) network. The voice call is delivered over the CS network and the multimedia object is delivered over a packet-switched (PS) network. The multimedia object can be rendered as a voice call alert, during the voice call, or after the voice call. The multimedia object can be an advertisement object and can be provided by a third party. The systems and methods described are applicable to IMS and non-IMS networks. | 2008-10-23 |
20080259888 | COMMUNICATIONS SYSTEM AND COMMUNICATION APPARATUS - Disclosed herein is a communications system that uses multiple transmission media, the system including: communications interface combining adapters connected via a power-line transmission path and a wireless transmission path between wireless LAN access points, each adapter having a power line communication interface and a wireless LAN interface, the wireless LAN interface having an access point function and an inter-access point communication function; wireless LAN terminals connected to the access points included in the adapters; and a wired LAN terminal connected to a wired LAN interface included in at least some of the adapters. Data transfer between the wireless LAN terminals or between one of the wireless LAN terminals and the wired LAN terminal is performed via a high-speed combined interface logically formed by using the power-line transmission path and inter-access point communication between the adapters to which the terminals participating in the data transfer are connected. | 2008-10-23 |
20080259889 | COMMUNICATION METHOD AND SYSTEM FOR TERMINAL ENTERING AND LEAVING IDLE MODE - A communication method and system for terminal entering and leaving idle mode in a mobile communication system are disclosed. The communication method for a terminal entering an idle mode includes: triggering a flow of entering the idle mode for the terminal; and a serving access service network gateway sending the information of anchor function entities serving the terminal to an anchor function entity information storing unit, so as to store the information. With the technical scheme of the invention, when the anchor function entities serving the terminal are not located at the same physical entity, the addressing process can be accomplished correctly, and the smoothness of the network service flow can be guaranteed. | 2008-10-23 |
20080259890 | VoIP Service Threshold Determination by Home Wireless Router - A home wireless router establishes a Wireless Local Area Network (WLAN) that supports wireless communications within a WLAN service area. The home wireless router establishes broadband communications via a broadband connection with a VoIP service accumulator. The home wireless router services a plurality of wireless terminals within the WLAN service area, including at least one Voice over Internet Protocol (VoIP) wireless terminal. The home wireless router receives a query from the VoIP service accumulator requesting information regarding the home wireless router's prior servicing of (or ability to service) VoIP calls. In response, the home wireless router responds to the VoIP service accumulator with information regarding the home wireless router's prior servicing of (or ability to service) VoIP calls. The home wireless router and the VoIP service accumulator subsequently service VoIP calls within the WLAN based upon the information regarding the home wireless router's prior servicing of (or ability to service) VoIP calls. | 2008-10-23 |
20080259891 | MULTIPLE PACKET SOURCE ACKNOWLEDGEMENT - A multi-bit acknowledgement word ( | 2008-10-23 |
20080259892 | Method for Determining User Channel Impulse Response in Td-Scdma System - The present invention discloses a method for determining user channel impulse response in the TD-SCDMA system, including: setting one or more than one synchronous ID code and establishing corresponding relations between channel estimation parameters of each user and the synchronous ID code and a sub-frame number of a sub-frame transmitting the synchronous ID code; transmitting, by each user, a corresponding synchronous ID code in a sub-frame identified by a sub-frame number corresponding to channel estimation parameters according to the relations established in step A, wherein timing advance of transmitting the synchronous ID code is the same with that of transmitting uplink service data of the user; at Node B, continuing to detect whether there is the synchronous ID code in received signals, if there is one or more than one synchronous ID code, determining the channel estimation parameters of the user transmitting the synchronous ID code according to the detected synchronous ID code, sub-frame number of the current sub-frame and the corresponding relations established in step A; and at Node B, computing the channel impulse response of the user according to the determined channel estimation parameters and arriving time of the detected synchronous ID code. | 2008-10-23 |
20080259893 | Mobile terminal based on W-CDMA system having receive diversity function and system thereof - A mobile terminal having a receive diversity function using a plurality of receive antennas, having a calculation section which combines respective level measurement results of the receive antennas and calculates a level measurement value after being combined as the level measurement result of the mobile terminal. | 2008-10-23 |
20080259894 | METHODS AND APPARATUS FOR DISTRIBUTING AND ACQUIRING OVERHEAD FLOW DATA IN A MULTI-FREQUENCY NETWORK - Methods and apparatus for distributing and acquiring overhead flow data in a multi-frequency network. In an aspect, a method includes generating primary flow (PF) overhead data associated with one or more multiplexes to be distributed in the multi-frequency network, identifying multiplex specific overhead (MSO) data associated with the one or more multiplexes, transmitting the PF overhead data over the multi-frequency network using first pre-assigned flow identifiers, and transmitting the MSO data over the multi-frequency network using second pre-assigned flow identifiers. An apparatus includes flow acquisition logic configured to acquire PF overhead data associated with at least one multiplex using first pre-assigned flow identifiers, and processing logic configured to determine that overhead data associated with the at least one multiplex has been updated based on the received PF overhead data, and to obtain MSO data associated with the at least one multiplex using second pre-assigned flow identifiers. | 2008-10-23 |
20080259895 | System and Method for an Ultra Wide-Band Medium Access Control Distributed Reservation Protocol | 2008-10-23 |
20080259896 | Device, Method And Protocol For Private Uwb Ranging - An apparatus, system, method and computer program product for secure ranging between at least two devices in radio communications with each other. In particular, an apparatus, system, method and computer program product for secure ranging between at least two devices communicating via ultra wideband (UWB) protocols. Either ternary-IR or time-hope-IR sequences are used for ranging and security. A first device transmits a range packet. A second device responds to the range packet after a delay time known only to the first and second devices. The delay time can be selected randomly by either to the first device or the second device and made known to the other device in an encrypted notification packet. | 2008-10-23 |
20080259897 | Method and Arrangement for Wireless Communication of Signals in a Mr System - A method and an arrangement for uni- or bidirectional wireless communication of signals or data especially in a reflective environment like a MR imaging system, between at least one first transmitter and/or receiver unit ( | 2008-10-23 |
20080259898 | METHOD AND APPARATUS FOR DYNAMIC RADIO RESOURCE CONTROLLING - A method and a mobile terminal for communicating with a mobile network element (IWF) comprising communicating with a mobile network element (IWF) using a bearer that is modifiable by a negotiation between the mobile terminal (MS) and the mobile network element (IWF). The data is divided into data units ( | 2008-10-23 |
20080259899 | Apparatus and method for uplink scheduling considering characteristic of power amplifier in mobile communication terminal - An UpLink (UL) scheduling method and apparatus considering a characteristic of a power amplifier in a mobile communication terminal are provided. The UL scheduling method includes calculating a packet transmission time, which minimizes energy consumed in packet transmission, by using a Direct Current (DC) voltage used in a power amplifier for signal amplification and by using nonlinear amplification efficiency; and scheduling UL data by using the calculated packet transmission time. | 2008-10-23 |
20080259900 | MOBILE WIRELESS COMMUNCATION SYSTEM, BASE STATION, MOBILE TERMINAL AND RANDOM ACCESS CONTROL METHOD USED THEREFOR - A base station which, when a communication start request signal is transmitted by a mobile terminal using an access slot and a signature selected at random in the start of random access communication, transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the base station including: | 2008-10-23 |
20080259901 | Adaptive coding and modulation for synchronous connections - A method for communication includes accepting input data from two or more data sources, one or more of which include continuous synchronous tributaries, for transmission over a wireless communication link having a variable data rate. Relative priorities are assigned to the respective data sources. A currently-available data rate of the communication link is determined. The input data accepted from the data sources is multiplexed to produce a composite data stream. The input data of at least one of the tributaries is selectively omitted from the composite data stream based on the respective relative priorities, in order to match the data rate of the composite data stream to the currently-available data rate of the communication link. The composite data stream is transmitted over the communication link. | 2008-10-23 |
20080259902 | HEADER COMPRESSION AND PACKET TRANSMISSION METHOD IN SENSOR NETWORK AND APPARATUS THEREFOR - A header compression and packet transmission method in a sensor network and an apparatus therefor, for selecting technologies related to Internet Protocol (IP) header compression according to characteristics of each node, and processing the technologies. The header compression and packet transmission method and apparatus therefor distinguishes a node supporting the adaptation layer function and a node that does not support the adaptation layer function, and determines whether to compress the packet, thereby enabling a node transmitting data to transmit the data having a proper form that is acceptable to a sensor node receiving the data. By doing so, an efficient packet transmission is possible. | 2008-10-23 |
20080259903 | Error control method, medium access control (MAC) frame designing method, and terminal registration method in wireless communication system, and recording medium - The MAC frame in a wireless communication system includes a terminal ID allocated to each of multiple terminals. At least one connection ID is allocated to each terminal having the terminal ID, and sub-carrier allocation information is allocated to each connection having the connection ID. The sub-carrier allocation information includes a sub-carrier allocation status for each sub-carrier, and the number of allocated information bits for each sub-carrier. The sub-carrier allocation status and the number of allocated information bits for each sub-carrier can be allocated, by sub-carriers, to the sub-carrier allocation information using a same number of bits; or the information on the sub-carrier allocation status is first allocated to the sub-carrier allocation information and the number of allocated information bits for each sub-carrier is allocated. | 2008-10-23 |
20080259904 | APPARATUS AND METHOD OF FRAME SYNCHRONIZATION IN BROAD BAND WIRELESS COMMUNICATION SYSTEMS - The present invention relates to an apparatus and method of frame synchronization in broad band wireless communication systems. In an apparatus of frame synchronization in a mobile station, a time variant phase rotation compensator eliminates time variant phase rotation carried in received signals by conjugated multiplication between adjacent signal samples. Then, the processed signal is fed into a delay correlator to calculate a plurality of correlations between two successive frames. A local power calculator acquires an average power of several symbols centered on delayed correlation values. A normalizer normalizes the delayed correlation values with a local average power corresponding to the delayed correlation values. A maximum value detector selects the maximum value from normalized correlation values to trigger frame synchronizing and timing signals. | 2008-10-23 |
20080259905 | BASE STATION SYNCHRONIZATION FOR A SINGLE FREQUENCY NETWORK - Methods, apparatus and systems for generating and synchronizing a macro-diversity region transmitted by base stations in a network includes a receiving module configured to receive a plurality of packets of content data. A controller module coupled to the receiving module and configured to generate a macro-diversity region data that includes at least one packet of the plurality of packets of content data, and to generate a time reference and frame offset information to indicate an offset from the time reference and to further identify a second base station transmission frame that will include the second macro-diversity region data. A communication module to communicate a macro-diversity region message that includes the macro-diversity region data and the macro-diversity region control information to a plurality of base stations, configured to synchronize the transmission of the macro-diversity region data at the plurality of base stations. | 2008-10-23 |
20080259906 | TARGETED TELEVISION ADVERTISEMENTS BASED ON ONLINE BEHAVIOR - In a method for delivering targeted television advertisements based on online behavior, IP addresses indicating online access devices and IP addresses indicating television set-top boxes are electronically associated for a multitude of users. Using user profile information derived from online activity from one of the online access IP addresses, a television advertisement is selected, such as by using behavioral targeting or demographic information, and automatically directed to the set-top box indicated by the set-top IP address associated with that online access IP address. Preferably neither the user profile information nor the electronic association of online access and set-top box IP addresses includes personally identifiable information. | 2008-10-23 |
20080259907 | INTERWORKING BETWEEN H.320/H.324 AND SIP - Disclosed are a method, apparatus and system for interworking between H.320 or H.324 and SIP. The method comprises receiving a SIP message indicative of capabilities supported by a first endpoint device and deferring responding to the SIP message. The method further comprises receiving from a second endpoint device an H.320 or H.324 message indicative of the capabilities supported by the second endpoint device in response thereto responding to the SIP message thereby to establish a media communication channel between the first and second endpoint devices based on their respective capabilities. | 2008-10-23 |
20080259908 | Location object proxy - The function of determination of location is separated from the function of gathering information based on determined location by use of a Location Object (LO) proxy between an initiating VoIP capable device and a positioning center. The LOProxy queries an appropriate location database using a location key, and injects a PIDF-LO into a routing SIP message otherwise without location. A SIP request without location is received from a VoIP capable device. The SIP request contains messages indicating the type of location generator or service needed. A location key (like a telephone number or SIP URI), in addition to the type of location generator or service needed, is included in a SIP request. A location object (LO) broker may be used between a routing SIP message and a positioning center to direct a routing SIP message to an appropriate one of a plurality of location object (LO) proxies. | 2008-10-23 |
20080259909 | Signaling of Early Media Capabilities in IMS Terminals - Methods and apparatus are disclosed for processing Session Initiation Protocol (SIP) INVITE messages that include an early media capability indicator. The early media capability indicator provides information regarding the early media handling capabilities of the device originating the message, and is used by various network nodes that process the INVITE message to determine if, and under what circumstances, early media sessions may be established with the originating communication device. In an exemplary method, a SIP INVITE message is received from a SIP User Agent Client for a first communication device, the SIP INVITE message comprising an early media capability indicator. The exemplary method further comprises forwarding the SIP INVITE message to one or more remote communication devices, and selectively allowing one or more media sessions between the first communication device and the one or more remote communication devices, based on the early media capability indicator. | 2008-10-23 |
20080259910 | Dynamic Media Content For Collaborators With VOIP Support For Client Communications - Methods, systems, and computer program products are provided for delivering dynamic media content to collaborators. Embodiments include providing collaborative event media content, wherein the collaborative event media content includes a grammar and a structured document; selecting a VOIP protocol for communications between a client and a dynamic context generation server; generating a dynamic client context for a client by the dynamic context generation server in dependence upon communications from the client through the selected VOIP protocol; detecting an event in dependence upon the dynamic client context; identifying one or more collaborators in dependence upon the dynamic client context and the event; selecting from the structured document a classified structural element in dependence upon an event type and a collaborator classification; and transmitting the selected structural element to the collaborator. | 2008-10-23 |
20080259911 | Methods and Apparatus for Distributing and Acquiring Overhead Flow Data in a Multi-Frequency Network - Methods and apparatus for distributing and acquiring overhead flow data in a multi-frequency network. In an aspect, a method includes generating initial acquisition flows (IAFs) that describe how content multiplexes are distributed in the multi-frequency network and provide flow identifiers for overhead flows associated with the content multiplexes, and transmitting the IAFs on pre-assigned flow identifiers. Another method includes receiving IAFs that describe how content multiplexes are distributed in the multi-frequency network and specify flow identifiers for overhead flows associated with the content multiplexes, wherein the IAFs are received using pre-assigned flow identifiers, processing the IAFs to determine VM sets associated with current wide and local areas of the multi-frequency network, determining overhead flow related information associated with selected content multiplexes in the VM sets, and acquiring overhead flow data associated with the selected content multiplexes using the associated flow identifiers. | 2008-10-23 |
20080259912 | ASSISTED WIRELESS TRANSMIT/RECEIVE UNIT PAGING AND CALL SESSION ROUTING - A method and apparatus are disclosed for communicating with a Wireless Transmit/Receive Unit in wireless communications. The WTRU, capable of communicating in a 3GPP network and a non-3GPP network, receives messages with the assistance of the non-3GPP network through a Paging Entity. | 2008-10-23 |
20080259913 | ACHIEVING SUPER-FAST CONVERGENCE OF DOWNSTREAM MULTICAST TRAFFIC WHEN FORWARDING CONNECTIVITY CHANGES BETWEEN ACCESS AND DISTRIBUTION SWITCHES - In one embodiment a switch has active and standby LAYER 2 switch interfaces coupled, respectively, to device interfaces of first and second LAYER 2/LAYER 3 network devices. The active switch interface is configured to forward all egress traffic and accept all ingress traffic and the standby switch interface is configured to forward only IGMP messages and configured to block all ingress traffic. | 2008-10-23 |
20080259914 | SECONDARY PROTECTION APPROACH FOR POWER SWITCHING APPLICATIONS - An apparatus and method for providing a primary and a secondary protection to a load in a power switching application uses an electronic circuit breaker to selectively permit a flow of current from an input to a load. The circuit breaker comprises a plurality of first switches coupled in parallel, and a plurality of fuses coupled to the plurality of first switches. In a disclosed embodiment, each first switch is coupled to a first fuse and to a second fuse. A controller opens and closes the plurality of first switches by commanding a driver current ON and OFF. The controller is operable to detect a fault condition and to open the plurality of first switches in response to the fault condition by commanding the driver current OFF. If the controller fails to open one of the first switches, one of the fuses coupled to the switch is operable to blow. In addition, the circuit breaker also comprises a charge pump that provides an electric current to a second plurality of switches to prevent the second plurality of switches form shorting the driver current. | 2008-10-23 |
20080259915 | Communication Module Having a Communication Interface Element and Communication Interface Element - A communication interface element for a communication module is provided, which module contains a message memory and a first data path to and from the message memory via which data and/or messages are transmitted to and from the message memory. The communication interface element provides an additional, second data path in the communication module and includes switching arrangement configured in such a way that predefinable data and/or messages of the first data path are transmitted over the additional, second data path. | 2008-10-23 |
20080259916 | OPPORTUNISTIC QUEUEING INJECTION STRATEGY FOR NETWORK LOAD BALANCING - Embodiments of the invention include a method, system, and article of manufacture that provide opportunistic queuing injection strategy used for data communication between nodes of a parallel computer system. A message may be encapsulated into a set of data packets. When the packets are sent, an opportunistic injection queue may be configured to transmit them to multiple hardware injection ports. This approach allows for complete network link saturation. In a parallel system with network links in multiple dimensions, sending message packets using more than one dimension may substantially increase network throughput. | 2008-10-23 |
20080259917 | System and Method for Improved Ethernet Load Balancing - A method for Ethernet packet load balancing includes receiving a transmit package for transmission on an Ethernet network. An offload adapter identifies a least busy port from a plurality of ports indicated in a port list, based on a byte count associated with each of the plurality of ports. The offload adapter determines whether the identified least busy port is in a working status. In the event the identified least busy port is in a working status, the offload adapter assigns the transmit packet to the identified least busy port and increments the byte count associated with the identified least busy port. In the event the identified least busy port is not in a working status, the offload adapter updates the port list and, based on a determination that there are additional working ports, assigns the transmit packet to one of the additional working ports. | 2008-10-23 |
20080259918 | Method and apparatus for managing telephone calls - A system and method for managing telephone calls is disclosed. The system includes a central controller that receives and processes telephone calls. The identity of a caller is first determined. Based on predetermined settings designated by an end user, a call is directed to one or more telephones of the end user. Preferably, the end user's telephones ring simultaneously. The user may answer any of his/her telephones and choose from among several options of how to handle the call. If the user chooses to answer the call, the call may be transferred to that telephone and the conversation may commence. | 2008-10-23 |
20080259919 | Method for Dynamic Sensor Network Processing - Described are a method and a sensor aware network for dynamic processing of sensor data. Network context data are inserted into data packets from sensors or local sensor networks coupled to the sensor aware network. Sensor aware nodes in the sensor aware network can read the context data and can respond by performing specific network actions. The sensor data and network context data are provided to one or more application nodes. The sensor data and network context data can be stored in a database and later searched according to the network context data. Advantageously, sensor data flows can be treated differently by the sensor aware network, the application and the user, depending on the type of sensor data and the actual data values. Thus critical responses to certain sensor data flows can be implemented more efficiently than otherwise possible using conventional network configurations. | 2008-10-23 |
20080259920 | Method and apparatus for establishing virtual resilient packet ring (RPR) subrings over a common communications path - A method and corresponding apparatus allows multiple virtual switches in a physical switch to share one physical Resilient Packet Ring (RPR) in an RPR network. Modules in the multiple virtual switches add multicast information to traffic to direct the traffic along a common path to other physical switches on the ring, and modules in the virtual switches inspect traffic to determine whether the traffic is directed to the respective virtual switch. Multiple virtual RPR subrings are made available in a single physical ring, increasing usefulness of virtual switches formerly only able to support multiple tributary connections to other networks but not able to share a single ring network communications path. Sharing a single communications path increases overall network bandwidth, and at least one implementation allows for spatial reuse. | 2008-10-23 |
20080259921 | System and method for multi-rate video delivery using multicast stream - Systems and methods for multi-rate media data delivery using multiple IP multicast streams are provided. According to example embodiments disclosed herein, the method may include determining a plurality of stream bit rates based on a plurality of demanded bit rates of a plurality of output media data streams and a first algorithm. The method may further include receiving an input media signal and generating a plurality of encoded data streams using the input media signal. The encoded data streams may have encoded bit rates, substantially the same as the stream bit rates. The example method may also include, using a second algorithm and the encoded data streams to generate output data streams at the demanded bit rates. In an example embodiment, the system may comprise a multi-rate encoder and a stream generator, to generate a plurality of encoded streams at the encoded bit rates. | 2008-10-23 |
20080259922 | INTERSECTION-BASED CONFIGURATION MANAGEMENT - A configuration management system and related methods are provided to facilitate intersection-based management of configuration information for network devices. In one example, a method includes polling a plurality of network devices to determine address entries stored by address tables of the network devices. The method also includes applying a hash function to the address entries to determine a plurality of key-value associations. The method further includes maintaining a hash table comprising the key-value associations. Each key of the hash table corresponds to an address entry stored by one or more of the address tables. Each value of the hash table identities which of the address tables are storing the address entry corresponding to the associated key. | 2008-10-23 |
20080259923 | Forwarding data in a data communication network - An apparatus for forwarding data in a data communications network having as components nodes and links therebetween is described. The apparatus is arranged to forward data towards a destination on a label switched path and advertise in a label advertisement to nodes in the network in a label advertisement its label for the label switched path and its label for a repair label switched path for use in the event of non availability of a component in the network. The apparatus is further arranged to advertise to a remote node in the network in a label advertisement additional information for deriving repair label switched path information at the remote node. | 2008-10-23 |
20080259924 | Marked packet forwarding - A network, network devices, and methods are described for marked packet forwarding. A network device includes a network chip having a number of network ports for receiving and transmitting packets. The network chip includes logic to decapsulate a packet received from a tunnel, mark the packet with a handle associated with an originating network device of the packet using information from an encapsulation header, and forward the marked packet to a checking functionality having a destination address different from an original destination address of the packet. | 2008-10-23 |
20080259925 | Extensions to IPv6 neighbor discovery protocol for automated prefix delegation - In one embodiment, a method comprises detecting, by a router, a first router advertisement message from an attachment router that provides an attachment link used by the router, the first router advertisement message specifying a first IPv6 address prefix owned by the attachment router and usable for address autoconfiguration on the attachment link. The router detects an unsolicited delegated IPv6 address prefix from the attachment router and that is available for use by the router. The router claims a second IPv6 address prefix from at least a portion of the delegated IPv6 address prefix, for use on at least one ingress link of the router. | 2008-10-23 |
20080259926 | Parsing Out of Order Data Packets at a Content Gateway of a Network - In one embodiment, a method includes receiving, at a local node of a network, a sequenced data packet of a flow made up of multiple sequenced data packets from a source node directed toward a destination node. The flow is to be parsed by the local node to describe the flow for administration of the network. Based on sequence data in the sequenced data packet, it is determined whether the sequenced data packet is out of order in the flow. If it is determined that the sequenced data packet is out of order, then the sequenced data packet is forwarded toward the destination node before parsing the sequenced data packet. The out of order sequenced data packet is also stored for subsequent parsing at the local node. | 2008-10-23 |
20080259927 | Information dissemination method and system having minimal network bandwidth utilization - An information disseminating apparatus that transmits information between nodes of a network while expending minimal or no network bandwidth for transmitting the information. The apparatus can include a message processor that generates or receives a message to be transmitted from a first note to a second node in the network, and a transmitter that transmits data packets in a sequence that represents the message from the first node to the second node. The apparatus may further include a plurality of queues each associated with a class and services one or more data packets each having a marker that corresponds to the class, and a queue processor that dequeues the data packets from the queues in accordance to the sequence and the class associated with each of the queues. | 2008-10-23 |
20080259928 | Method and Apparatus for Out-of-Order Processing of Packets using Linked Lists - These and other aspects of the present invention will be better described with reference to the Detailed Description and the accompanying figures. A method and apparatus for out-of-order processing of packets using linked lists is described. In one embodiment, the method includes receiving packets in a global order, the packets being designated for different ones of a plurality of reorder contexts. The method also includes storing information regarding each of the packets in a shared reorder buffer. The method also includes for each of the plurality of reorder contexts, maintaining a reorder context linked list that records the order in which those of the packets that were designated for that reorder context and that are currently stored in the shared reorder buffer were received relative to the global order. The method also includes completing processing of at least certain of the packets out of the global order and retiring the packets from the shared reorder buffer out of the global order for at least certain of the packets. | 2008-10-23 |
20080259929 | Secure one-way data transfer system using network interface circuitry - Network interface circuitry for a secure one-way data transfer from a sender's computer (“Send Node”) to a receiver's computer (“Receive Node”) over a data link, such as an optical fiber or shielded twisted pair copper wire communication cable, comprising send-only network interface circuitry for transmitting data from the Send Node to the data link, and receive-only network interface circuitry for receiving the data from the data link and transmitting the received data to the Receive Node, wherein the send-only network interface circuitry is configured not to receive any data from the data link, and the receive-only network interface circuitry is configured not to send any data to the data link. The network interface circuitry may use various interface means such as PCI interface, USB connection, FireWire connection, or serial port connection for coupling to the Send Node and the Receive Node. | 2008-10-23 |
20080259930 | Message Flow Model of Interactions Between Distributed Services - A computer-implementable method, system and computer-usable medium for defining a message flow model of interactions between distributed services are presented. In a preferred embodiment, the method includes the steps of: capturing unidirectional network-level message traffic between services in a network; identifying service end-points from information obtained from the uni-directional network-level message traffic; identifying message interactions of captured uni-directional network-level message traffic between identified service end-points; applying formal and informal interface definitions to the captured unidirectional network-level message traffic; categorizing each captured unidirectional network-level message traffic as being a public network-level message traffic or a private network-level message traffic; filtering the captured uni-directional network-level message traffic to filter out any formally defined captured uni-directional network-level message traffic; correlating message exchanges for filtered uni-directional network-level message traffic to identify a relationship between correlated message exchanges; and analyzing the network according to identified relationships between correlated message exchanges. | 2008-10-23 |
20080259931 | METHOD AND APPARATUS FOR RESERVING NETWORK RESOURCES FOR PSEUDO POINT-TO-POINT CONNECTIONS - The present invention relates to a method and apparatus for reserving network resources for pseudo point-to-point connections by means of an idempotent resource reservation protocol. | 2008-10-23 |
20080259932 | Method and System for Facilitating a First and Second Protocol Between a Data Processing System and an ISP - An access unit ( | 2008-10-23 |
20080259933 | Path Controller, Path Control Method, and Program Therefor - A path controller | 2008-10-23 |
20080259934 | DISTRIBUTED VIRTUAL SYSTEM TO SUPPORT MANAGED, NETWORK-BASED SERVICES - Methods and systems are provided for allocating network resources of a distributed virtual system to support managed, network-based services. According to one embodiment, a VR-based switch having multiple processing elements is configured for operation at an Internet POP. An NOS is provided on each of the processing elements. Resources of the VR-based switch are segmented between a first and second subscriber by mapping VRs assigned to the first and second subscriber onto appropriate processing elements. Then, a first and second set of customized services are configured, each including two or more of firewalling, virtual private networking, encryption, traffic shaping, routing and network address translation (NAT), to be provided by the VR-based switch. Customized services are configured by allocating appropriate service object groups to the VRs, which can be dynamically distributed by the NOS to customized processors of the processing elements to achieve desired computational support. | 2008-10-23 |
20080259935 | Method and Network for Transferring Data and Signals - In a method and network for transferring data and signals between terminal equipment via one or more switching stations, the data and digitized signals are combined in cells, with each cell having a header in which connection information is contained that designates a transmission or routing target. The terminal equipment and switching stations are synchronized so that the cells are transferred in a synchronized manner via one or more switching stations. Signals and high quality of service (QoS) data thus can be transferred through the same network. | 2008-10-23 |
20080259936 | SERVICE PROCESSING SWITCH - A system and method for providing IP services. A packet is received at a line interface/network module and forwarded to a virtual routing engine The virtual routing engine determines if the packet requires processing by a virtual services engine. If the packet requires processing by the virtual services engine, the packet is routed to the virtual services engine for processing. | 2008-10-23 |
20080259937 | Circuit Arrangement and Method for the Analysis of a Network - According to one aspect a network analyzer is configured such that destination addresses are allocated to measured quality-of-service values in network transfer units. Addresses of network nodes which do not meet the expected quality of service values are determined in a central network management system. An adequate quality-of-service can be maintained in the network by isolating the network nodes. | 2008-10-23 |
20080259938 | SESSION ANNOUNCEMENT SYSTEM AND METHOD - A cluster system and method. The cluster includes a first and a second interface and two or more nodes, wherein each node is connected to the first and second interfaces, wherein exactly one node includes a first redirector and wherein exactly one node includes a second redirector. The first and second redirectors include means for establishing and tracking sessions and means for forwarding packets to the chosen node. The chosen node receives a packet from the first redirector and uses the packet to send a Session Announcement to the second redirector. | 2008-10-23 |
20080259939 | Method for distributing resources to network nodes in a decentralized data network - A method is disclosed for distribution of resources to network nodes in a decentralized data network. In at least one embodiment of the method keywords, which are allocated to digital resources, are mapped onto digital bit sequences. These bit sequences are modified, with the subsequent bits after a predetermined bit position, preferably being replaced by random bits. A mapping onto bit sequences is then undertaken with these modified bit sequences, with each network node being responsible for a specific range of values of indices. The resource will then be allocated the index which is produced by the mapping. The mapping in this case can be selected so that a wildcard search according to keywords is guaranteed. The outstanding feature of the method is that the resources are distributed evenly in the decentralized network and at the same time a fast wildcard search according to truncated keywords is made possible. | 2008-10-23 |
20080259940 | METHOD AND APPARATUS FOR PEER-TO-PEER CONNECTION ASSISTANCE - One embodiment of the present method and apparatus for assisting a peer-to-peer connection between a first node and a second node includes receiving, at a third node, a request for connection assistance from one of the first and second nodes. The third node then connects to both the first node and the second node, receives the data from the first node and delivers the data to the second node. In this manner, data may be transferred between the first and second nodes even if the first and second nodes are unable to directly connect to each other (e.g., due to permanent or temporary limitations). | 2008-10-23 |
20080259941 | SYSTEM AND APPARATUS FOR MANAGING IP ADDRESSES - A system and apparatus for managing IP addresses is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a gateway having a controller element to receive a block of IP addresses from a dynamic host configuration protocol server. Additional embodiments are disclosed. | 2008-10-23 |
20080259942 | Arrangements For Providing Peer-To-Peer Communications In A Public Land Mobile Network | 2008-10-23 |
20080259943 | IP COMMUNICATION APPARATUS AND NAT TYPE DETERMINATION METHOD BY THE SAME - In a NAT type determination method pursuant to RFC 3489, address information added in a binding response from a STUN server in response to a binding request issued in a latest transmission test is compared with address information added in a binding response in response to any transmission test executed therebefore. When the address information are not identical, a NAT type is determined symmetric. Even when a router whose NAT type changes frequently according to a use status is connected, communication is capable without manual setting change by a user. | 2008-10-23 |
20080259944 | METHOD AND APPARATUS OF PROVIDING RESOURCE ALLOCATION AND ADMISSION CONTROL SUPPORT IN A VPN - Method and apparatus for effectively supporting resource allocation and admission control of a Virtual Private Network in a service provider network. | 2008-10-23 |
20080259945 | Communication circuit for a vehicle - A communication circuit for use within a vehicle includes a first network port and a second network port that is remotely located from the first network port. The networks are digitally connected together and digitally communicate a signal therebetween. The communication circuit is used between two or more coupled train vehicles. | 2008-10-23 |
20080259946 | Vehicle network system - A vehicle network system is provided with a plurality of star networks, a plurality of devices mounted on a vehicle are connected in a star shape through respective branch lines in each of the star networks, and a trunk line for connecting the plurality of star networks, the branch lines are communication lines for optical communications, and the trunk line is a communication line for electric communication. | 2008-10-23 |
20080259947 | Method and System for High-Concurrency and Reduced Latency Queue Processing in Networks - A method and a system for controlling a plurality of queues of an input port in a switching or routing system. The method supports the regular request-grant protocol along with speculative transmission requests in an integrated fashion. Each regular scheduling request or speculative transmission request is stored in request order using references to minimize memory usage and operation count. Data packet arrival and speculation event triggers can be processed concurrently to reduce operation count and latency. The method supports data packet priorities using a unified linked list for request storage. A descriptor cache is used to hide linked list processing latency and allow central scheduler response processing with reduced latency. | 2008-10-23 |
20080259948 | System and method for operating a communications system | 2008-10-23 |
20080259949 | Data Processing Circuit Wherein Data Processing Units Communicate Via a Network - Data is processed in a circuit that contains a plurality of data processing units interconnected by a network of node circuits. The node circuits use resources on a time slot multiplexing basis. Stream are started between source data processing units and destination data processing units. Each stream contains messages that occupy the resources in a periodically repeating selection of time-slots. The period of repetition is a network period, which is the same for all the streams. The node circuits forward all the messages of a particular stream through the network along the nodes in a stream specific path assigned to the particular stream. The node circuits decide whether to forward or discard to forward each message dependent on a measure of seniority of the message in its particular stream. A node circuit prevents forwarding of a more junior message for which insufficient resources are left by forwarding of more senior messages from the particular node circuit. Preferably, in selected return time slots, the node circuits send back confirmations to confirm of successful forwarding of a message. The selected return time-slot are selected in predetermined way so that it is possible to predict in a further node circuit back along the path, from the presence of a further message of the stream at that further node circuit in a crossing time-slot, whether the further message will cross the confirmation at the further node circuit ( | 2008-10-23 |
20080259950 | METHOD FOR THE TRANSMISSION AND RECEPTION OF DATA CONTENTS IN A COMMUNICATIONS NETWORK, CORRESPONDING COMPUTER PROGRAM PRODUCT, STORAGE MEANS AND DEVICES - A method of transmission of at least one data content by a source node associated with a generator application to at least one destination node, each associated with a consumer application, in a communications network comprising a plurality of nodes, each being associated with an application, the network implementing a first clocking which defines a first cycle, called a network cycle, for data transmission on said network. | 2008-10-23 |
20080259951 | METHOD AND APPARATUS FOR UNPLANNED AND UNINTERRUPTED NETWORK ADAPTER REPLACEMENT - A computer implemented method, data processing system, and computer program product for dynamically replacing a network adapter with minimal or no communications downtime. When a notification to replace a first network adapter is received, the process in the illustrative embodiments detects a replacement network adapter and a network interface corresponding to the replacement network adapter. The process configures a replacement network adapter, and pauses all communications to the first network adapter by dropping all incoming data packets to the first network adapter. The network interface corresponding to the first network adapter is redirected to point to the replacement network adapter. The first network adapter and the network interface corresponding to the replacement network adapter are then removed. Communication flow to the replacement network adapter is restored. | 2008-10-23 |
20080259952 | POINT-TO-POINT PROTOCOL DATA TRANSMISSION - Methods for transmitting data according to point-to-point protocols from first devices ( | 2008-10-23 |
20080259953 | METHOD, SYSTEM, AND STORAGE MEDIUM FOR PROVIDING CONTINUOUS COMMUNICATION BETWEEN PROCESS EQUIPMENT AND AN AUTOMATED MATERIAL HANDLING SYSTEM - A system and storage medium for providing continuous communication between passive and active equipment are provided. The system includes a conversion unit coupled to at least one the passive and active equipment, which monitors signals received from the equipment. The signals relate to an equipment state. Upon detecting a state change, the system converts a signal associated with the state change to a TCP/IP-formatted request. The system also includes a message handler coupled to the conversion unit, which receives the request from the conversion unit and transmits the request to a host system. The message handler also removes TCP/IP formatting from the request resulting in a file transfer protocol message. The conversion unit converts the file transfer protocol message to a signal and responds to the signal by the equipment. The conversion includes decoding the file transfer protocol message and setting a signal line to a requested state. | 2008-10-23 |
20080259954 | METHOD AND SYSTEMS FOR BANDWIDTH SCHEDULING AND PATH COMPUTATION FOR CONNECTION-ORIENTED NETWORKS - A connection-oriented network includes a control server. The control server receives requests to establish and utilize dedicated channels in the network. The control server utilizes various scheduling methods and algorithms to determine channels based on the request's requirements and resources of the network. For example, the control server may determine a channel based on: (i) a specified bandwidth in a specified time slot, (ii) highest available bandwidth in a specified time slot, (iii) earliest available time with a specified bandwidth and duration, and (iv) all available time slots with a specified bandwidth and duration. | 2008-10-23 |
20080259955 | Memory-Efficient ADSL Transmission in the Presence of TCM-ISDN Interferers - A method of communicating data across a channel that experiences near-end cross talk (NEXT) interference and far-end cross talk (FEXT) interference in alternate intervals. In one embodiment, a first data rate is determined for a first carrier-number mode that is to utilize a first bit table, a second data rate is determined for a second carrier-number mode that is to utilize dual bit tables, and a modem is configured to transmit using the mode having a highest data rate. | 2008-10-23 |
20080259956 | Data Processing Method for Network Layer - The present invention discloses a data processing method for network layer in a home network system ( | 2008-10-23 |
20080259957 | MAC TO PHY INTERFACE APPARATUS AND METHODS FOR TRANSMISSION OF PACKETS THROUGH A COMMUNICATIONS NETWORK - A system for serving an individual node in a shared communication network having a MAC layer and a PHY layer, the system being operative to interface between the MAC layer and the PHY layer. The system may include a first physical channel transferring at least one packet between the layers, a second physical channel transferring at least one burst parameter between the layers, and a third physical channel transferring at least one timing signal, for a burst characterized by the at least one burst parameter and comprising the at least one packet, between the layers. | 2008-10-23 |
20080259958 | High speed industrial control and data acquistion system and method - A high speed industrial control system and data acquisition system and method are disclosed that enable high speed data transmission rates from an control system to a remote client application. In one embodiment, the system includes a first processor, a second processor, an open-socket interface, and a client application. The first processor is configured to generate data arrays and the second processor is configured to receive and convert the arrays into time stamped message sets. The open-socket interface may be coupled to the second processor and may be configured to transmit packet sets from the second processor to a client application. The client application may be configured to convert each packet set into individual records that are included in a standard structured data format. One of the standard structured data format may be a standard database format. | 2008-10-23 |
20080259959 | METHOD FOR CARRYING FRAME RELAY OVER ETHERNET - A method for carrying Frame Relay over Ethernet comprises: receiving a Frame Relay frame, and removing header and tail flag sequences from the Frame Relay frame; determining a control word and performing payload encapsulation; mapping a DLCI to a VCE ID and encapsulating the VCE ID; encapsulating an Ethernet frame header, generating an Ethernet FCS and transmitting the Ethernet frame to Ethernet; and, receiving the Ethernet frame, checking the Ethernet frame and removing the Ethernet frame header; removing the VCE ID, and mapping the VCE ID to the DLCI; obtaining the control word, obtaining Frame Relay information from the payload and reconstructing the Frame Relay frame according to the control word; adding flag sequences to the Frame Relay frame, and transmitting the Frame Relay frame to a Frame Relay network. According to the invention, Frame Relay carried over Ethernet may be implemented without relying on the types of the upper layer protocols. | 2008-10-23 |
20080259960 | Method and apparatus for Out-of-Order Processing of Packets - A method and apparatus for out-of-order processing of packets are described. In one embodiment, the method includes receiving packets in a global order, the packets being designated for different ones of a plurality of reorder contexts. The method also includes, for each of the plurality of reorder contexts, assigning reorder context sequence numbers indicating an order relative to the global order of the packets designated for that reorder context. The method also includes storing packet descriptors for each of the packets in a shared reorder buffer, and completing processing of at least certain of the packets out of the global order. The method also includes, for each of the plurality of reorder contexts, maintaining a first indication of the one of the sequence numbers assigned the one of the packets that is next to be retired for that reorder context. The method also includes retiring the packets from the shared reorder buffer, based on the sequence numbers, in order with respect to each of the plurality of reorder contexts, but out of the global order for at least certain of the packets. | 2008-10-23 |
20080259961 | Data Unit Relay Device and Method of Controlling the Same - A method of controlling a data unit relay device is described, applied to a relay ARQ protocol in accordance with which a source peer sends data units to a destination peer via at least one relay peer. The relay ARQ protocol provides for a first type and second type of receipt information, where the first type is indicative of a correct receipt at a relay peer, and the second type is indicative of a correct receipt at the destination peer. In a data unit relay device that is arranged for deliberately dropping data units of the relay ARQ protocol under one or more predetermined conditions, a procedure is provided for indicating to the source peer and the destination peer that a data unit has been deliberately dropped and for identifying the deliberately dropped data unit, such that the source and destination peer may perform retransmission control for the dropped data unit as if it had been successfully received at the destination peer | 2008-10-23 |
20080259962 | Contents reproducing apparatus - A contents reproducing apparatus includes a receiving unit configured to receive a plurality of packets that convey an elementary stream containing encoded video or audio data and time information, a detecting unit configured to detect a discontinuity of timebase if the difference between first time information contained in a first packet and second time information contained in a second packet received before the first packet is larger than a first threshold value, a timer configured to output the current time after a second threshold value smaller than the first threshold value elapses from a time to receive the first packet, and a generating unit configured to generate a third packet including a third time information calculated based on the first time information and transfer the third packet to the receiving unit, when receiving the current time from the timer. | 2008-10-23 |
20080259963 | SYSTEMS AND METHODS FOR SWITCHING MULTI-RATE COMMUNICATIONS - A method for switching multi-rate communications is described. The method includes filling a first set of p timeslots with p sets of data from a first data collection of a first type, where the first data collection includes m sets of data and p is less than m. The method also includes loading at least one overflow timeslot with at least one overflow set of data from the first data collection, where the overflow set of data exceeds a size of the first set of p timeslots. | 2008-10-23 |
20080259964 | Communication Processing Device, Communication Control Method, and Computer Program - A configuration is provided that performs retransmission control in accordance with a processing state in which playback of received data is performed or a processing state in which playback and recording of the received data is performed. When a communication processing apparatus receives streaming data, the communication processing apparatus is in one of the following two states: (1) a state in which “only playback” is performed, and (2) a state in which “playback and recording” are performed. The communication processing apparatus determines in which state it is and changes the way in which a retransmission request for a lost packet is sent on the basis of the determined state. According to such a configuration, when the communication processing apparatus performs only a playback process, a real-time playback can be achieved. When the communication processing apparatus performs a recording process, the integrity of recorded data can be improved. | 2008-10-23 |
20080259965 | Receiving Data Comprising Synchronization Information - A method receives data including synchronization information. The method includes obtaining a synchronization for receiving the data based on the synchronization information. The method includes generating, during receiving of the data, maintenance information indicative of whether the synchronization is being maintained based on the synchronization information. The method includes continuing, upon loss of the synchronization, to generate the maintenance information based on the synchronization. | 2008-10-23 |
20080259966 | Synchronization of one or more source RTP streams at multiple receiver destinations - In one embodiment, a method includes synchronizing to a common reference timeframe between a sender node and a plurality of receiver nodes connected over a packet-based network. The sender node sends Real-Time Protocol (RTP) frames to the receiver nodes, and also sends a RTP Control Protocol (RTCP) sender report to each receiver node that contains a rendering offset value, each receiver node rendering the RTP frames at a render time equal to a sampling time in units of the common reference timeframe plus the rendering offset value. 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. | 2008-10-23 |
20080259967 | Method and arrangement for transmitting time stamp information - The invention relates to transmitting time information between elements of a data network. In the present invention, it has surprisingly been discovered that in a network transmitting packet, frame or cell switched data traffic, time stamp information can be transmitted from a network element ( | 2008-10-23 |
20080259968 | DIFFERENTIAL QUADRATURE PHASE-SHIFT KEYING TRANSMISSION SYSTEM WITH VARIABLE TRANSMISSION RATE - Methods and apparatus for varying the transmission rate of a signal transmitted within a dense wavelength division multiplexing (DWDM) system or network are disclosed. According to one aspect of the present invention, a method includes obtaining a first signal and determining a transmission rate associated with the first. If it is determined that the transmission rate is a first rate, the method includes processing the first signal as having a first transmission format and the first rate. Alternatively, it is determined that the transmission rate is not the first rate and is a second rate, the method includes processing the first signal as having a second transmission format and a second rate. | 2008-10-23 |
20080259969 | Slectable Multiwavelength Laser for Outputting Visible Light - The invention provides a laser system ( | 2008-10-23 |
20080259970 | Fiber Laser Arrangement - The present invention provides a system, which comprises a fiber laser ( | 2008-10-23 |
20080259971 | Method for improving high frequency operation of a vertical cavity surface emitting laser (VCSEL) with monolithically integrated bridge arm - A vertical cavity laser apparatus is provided. In one embodiment, the apparatus includes an electrically responsive substrate; a support block positioned on the electrically responsive substrate; a bridge arm structure coupled to the support block, the structure having a base; a laser active area on the bridge arm structure, a tuning pad on the bridge arm structure, a laser bond pad on the bridge arm structure with traces connecting the laser bond pad to the laser active area and base. The traces are positioned and shaped to be symmetric to avoid problems due to the asymmetry of the injection current. Additionally, in this embodiment, the laser bond pad is kept at a height of the base in order to minimize device capacitance and the traces are also kept at the height of the base. Methods are also provided whereby impedance matching and high speed performance can be accomplished irregardless of the mechanical configuration of the bridge arm structure. | 2008-10-23 |
20080259972 | WIDELY TUNABLE LASER - A Fabry-Perot laser and a micro-actuator are utilized to provide continuous tuning over a range of wavelengths. | 2008-10-23 |
20080259973 | Wavelength converted laser apparatus - a wavelength converted laser apparatus includes a laser oscillator emitting an excitation laser beam having a first wavelength, a harmonic wave generator converting the excitation laser beam into a beam having a second wavelength lower than the first wavelength and an optical parametric oscillator converting and outputting the beam having the second wavelength into a beam having a continuously selectable specific wavelength. The optical parametric oscillator has an OPO crystal, a SHG crystal disposed at an output terminal of the optical parametric oscillator crystal to generate a second harmonic beam and a pair of high reflectivity mirrors for amplifying the beam outputted from the optical parametric oscillator. | 2008-10-23 |
20080259974 | Not Temperature Stabilized Pulsed Laser Diode and All Fibre Power Amplifier - A laser system has an output/input coupler unit ( | 2008-10-23 |
20080259975 | LIGHT SOURCE, LIGHTING DEVICE, MONITORING DEVICE, AND PROJECTOR - A light source includes a light source unit which supplies first wavelength light, a wavelength converting unit which converts the first wavelength light into second wavelength light different from the first wavelength light, and a leakage preventing unit which prevents leakage of the first wavelength light out of the light source. The area where the light source unit and the wavelength converting unit are disposed is optically separated from the area where the leakage preventing unit is disposed. | 2008-10-23 |
20080259976 | Organic Columnar Thin Films - A thin film includes a substrate and a transparent, porous film of organic material, such as 8-hydroxyquinoline aluminum. The organic material is vapor deposited on the substrate such that the film has distinct helical columns extending away from the substrate. | 2008-10-23 |
20080259977 | Waveguide Structure for Upconversion of Ir Wavelength Laser Radiation - The invention relates to a waveguide structure for upconversion of IR wavelength laser radiation and is characterized in comprising a) at least one base substrate layer made essentially out of a moisture-stable mechanically- and/or temperature-stable material b) at least one active layer made essentially out of a halide glass, preferably a fluoride glass located on the base substrate layer whereby the material of the at least one base substrate layer has a different composition from the material of the at least one active layer. | 2008-10-23 |
20080259978 | Exposure device and circuit board for laser controller - In an exposure device comprising a laser controller that is configured as a circuit board capable of independently being changed, and that controls the emission of laser light from a laser emitter emitting laser light on receipt of an instruction for control given from a main controller responsible for overall control of the operation of the exposure device, error control information that is obtained in advance with regard to the circuit board and controls variations of a controlling factor due to a circuit error of the circuit board is stored into a memory provided to the laser controller prior to the provision of the circuit board to the exposure device. On receipt of an instruction for control given from the main controller to cause the emission of laser light in a predetermined amount of light, the laser controller determines a condition of emission of laser light based on the error control information stored in the memory to cause the laser emitter to emit laser light under the condition of emission. | 2008-10-23 |
20080259979 | PROVIDING A SUITABLE OUTPUT CURRENT TO A LASER DIODE - A laser diode driving circuit capable of providing a suitable output current to a laser diode is disclosed. The laser diode driving circuit includes a current supply, a first pseudo laser diode, a second pseudo laser diode, and an output current mirror circuit. An input current provided by the current supply is output through the output current mirror circuit to the laser diode. By making the characteristic of each of the first and second pseudo laser diodes substantially equal to the characteristic of the laser diode, the non-linearity between the input current and the output current is compensated. | 2008-10-23 |
20080259980 | Semiconductor Light Emitting Device Including Oxide Layer - A device includes a semiconductor structure comprising a III-nitride light emitting layer disposed between an n-type region and a p-type region. The semiconductor structure is grown over an oxide layer disposed between first and second III-nitride layers. The oxide layer may at least partially relieve the strain in the light emitting layer by increasing the in-plane lattice constant of the template on which the light emitting layer is grown. The oxide layer may be formed by growing an AlInN layer in the device, etching a trench to expose the AlInN layer, then oxidizing the AlInN layer. | 2008-10-23 |
20080259981 | Photonic device including semiconductor structure having doped region with array of subwavelength recesses - Various aspects of the present invention are directed to photonic devices, such as electro-optic modulators, passive filters, and tunable filters. In one aspect of the present invention, a photonic device includes a semiconductor structure having a p-region and an n-region. A doped region is formed on or within the semiconductor structure. The doped region includes at least one generally periodic array of recesses, with the at least one generally periodic array configured to transmit electromagnetic radiation at a selected dominant wavelength. The selected dominant wavelength is tunable by varying the refractive index of the semiconductor structure. | 2008-10-23 |