| 06th week of 2014 patent applcation highlights part 36 |
| Patent application number | Title | Published |
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| 20140036896 | WIRELESS/LAN ROUTER QUEUING METHOD AND SYSTEM - A queuing method and system for wireless/LAN routers processes and routes an incoming data packet from a wireless mobile network to a destination server. The system uses a wireless transport module to initiate storage of the data packet in a permanent storage device while simultaneously forwarding the data packet to the destination server. A database thread is used to manage the operations being performed on the data packet and for initiating the storage of the data packet in a permanent storage device based on a permanent storage queue. A main thread is used to simultaneously forward the data packet to the destination server. The wireless transport module is adapted to determine whether the data packet has been acknowledged by the destination server and aborting the storage of the data packet in the permanent storage device once acknowledgment from by destination server has been received. | 2014-02-06 |
| 20140036897 | METHODS CIRCUITS DEVICES SYSTEMS AND ASSOCIATED COMPUTER EXECUTABLE CODE FOR PROVIDING DATA CONNECTIVITY BETWEEN A MOBILE COMMUNICATION DEVICE COMMUNICATIVELY COUPLED TO A MOBILE COMMUNICATION NETWORK AND A THIRD PARTY DATA SOURCE - Disclosed are methods, circuits, devices, systems, and associated computer executable code for providing data connectivity between a mobile communication device communicatively coupled to a mobile communication network and a third party data source. There may be provided a Dynamic Application Data Router (DADR) functionally associated with a wireless access point of a mobile communications network. The DADR may include one or more wireless access point interface circuits adapted to interface with circuits of the wireless access point and to facilitate data communication between said DADR and a mobile device communicatively coupled to the wireless Access Point. The DADR may also include an application data routing module adapted to route upstream application data generated by an application running on the mobile device to a target application engine through a DADR associated gateway. | 2014-02-06 |
| 20140036898 | DIRECT DATA COMMUNICATION IN INFRASTRUCTURE MODE IN WIRELESS COMMUNICATION SYSTEMS - In an infrastructure wireless network, a direct data communication mechanism can be implemented for wireless network devices in a common basic service set (BSS) to directly exchange data frames, without transmitting the data frames via an access point. Each of the wireless network devices in the BSS can receive connection information that indicates whether data frames can be directly transmitted to each of the wireless network devices in the BSS. A source wireless network device can determine whether the data frames can be directly transmitted to a destination wireless network device based on analyzing the connection information. If the data frames can be directly transmitted, the source wireless network device can directly transmit the data frames to the destination WLAN device without having to transmit the data frames to the access point, which may improve transmission efficiency. | 2014-02-06 |
| 20140036899 | WIRELESS LAN COMMUNICATION METHOD AND APPARATUS - A wireless local area network (WLAN) communication method and apparatus are provided. The WLAN communication method includes allowing a receiving station to receive a multi input multi output (MIMO) frame, allowing the receiving station to determine whether the MIMO frame is erroneous and whether the MIMO frame is destined for the receiving station, allowing the receiving station to generate a single input single output (SISO) acknowledgement (ACK) frame if the MIMO frame is not erroneous and is destined for the receiving station, and allowing the receiving station to transmit the SISO ACK frame to a sending station that has transmitted the MIMO frame. | 2014-02-06 |
| 20140036900 | Interacting Method for UE Fast Selecting Mobile Communication Network to Access in a Wlan Interworking Network - An interacting method for WLAN UE selecting a mobile communication network to access in WLAN is disclosed. The method includes: a WLAN UE judges whether the identity information of the WLAN AN exists in the WLAN identity information stored when mobile connection with the WLAN AN is established, if so, the network selection information corresponding to the identity of the WLAN stored will be sent to the WLAN AN, otherwise, a pre-configured mobile communication network with highest priority is regarded as network selection information to be sent to the WLAN AN; the WLAN AN identifies the mobile communication network to access according to the network selection information carried in Authentication Request, and connects the WLAN UE to the selected network to implement authentication. | 2014-02-06 |
| 20140036901 | MOBILE IP HOME AGENT DISCOVERY - Systems and methodologies are described that facilitate Mobile IP home agent (HA) discovery in a wireless communication system. Discovery of a HA for Mobile IP can be conducted as described herein for a mobile terminal located on a network wherein movement of the terminal is managed by a network-based mobility protocol. For example, various aspects described herein can be utilized for discovery of a HA located in a 3GPP network from 3GPP and/or non-3GPP access. Further, various aspects described herein can be utilized to discover a gateway acting as mobility anchor for a network mobility protocol utilized by the network. As additionally described herein, HA discovery can be conducted in connection with DNS query formation and communication, network attach and/or re-attach procedures, Neighbor Discovery signaling, and/or other procedures. | 2014-02-06 |
| 20140036902 | Method, Apparatus, and Logic for Wireless Data Transmission - In certain embodiments, a method comprises receiving a data transmission comprising a header with a symbol and at least one symbol delimiter. The method may comprise monitoring the received data transmission to determine whether a time period between successive symbol delimiters of the header exceeds a maximum time. The method may comprise resetting a transponder to an initial state if the time period exceeds the maximum time. The maximum time may be determined based at least in part on the symbol after receiving successive symbol delimiters. | 2014-02-06 |
| 20140036903 | Radio Over Ethernet - A method of wireless communication utilizing a communication system that includes a baseband module that is in communication with a radio module via an Ethernet communication link. The method of wireless communication can include the synchronization of the internal reference clocks of the baseband module and radio module. A hierarchical arrangement can be used to synchronize the internal reference clocks with a grandmaster clock within the communication system. Further, packet transit calculations can be used to synchronize the internal reference clocks. | 2014-02-06 |
| 20140036904 | TRANSMITTER CIRCUIT, INTERFACE CIRCUIT, INFORMATION TERMINAL, INTERFACE METHOD, AND RECORDING MEDIUM - A signal received by an antenna ( | 2014-02-06 |
| 20140036905 | Automatically Detecting Best Paths From Shadow Route Reflectors - In an embodiment, a method comprises receiving a path advertisement comprising information about an available path and a well-known community value associated with the available path. A modified best path calculation is performed in response to receiving the available path either from a higher-ranked device or from a device that is not participating in diverse path calculation, resulting in creating a particular best path. The particular best path is advertised to other routers with or without a restriction indicator based on whether it is a client learned path or non-client iBGP peer learned path and based on whether the advertisement is directed to a client or a non-client iBGP peer. | 2014-02-06 |
| 20140036906 | TAGGING VoIP ORIGINATED TRAFFIC - A network node receives a Session Initiation Protocol (SIP) or H.323 signaling packet associated with data traffic, and determines if the data traffic originated from a source node or source network as Voice over Internet Protocol (VoIP) traffic. The network node tags a header of the SIP or H.323 signaling packet with a tag that identifies the data traffic as a VoIP originated call based on the determination, and sends the tagged SIP or H.323 signaling packet towards a destination. The network node further sends data identifying the data traffic as a VoIP originated call to an administrative system for at least one of call billing, rating, settlement or taxation purposes. | 2014-02-06 |
| 20140036907 | METHOD AND SYSTEM FOR COMMUNICATING ACROSS TELEPHONE AND DATA NETWORKS - A method and system for communicating across telephone and data networks are disclosed. According to one embodiment, a computer-implemented method, comprises receiving a first call from a first user phone that converts the first call from a format of a first local phone network to a first digital call. The first digital call is transmitted over a large area data network. The first digital call is converted to a format of a second local phone network to generate a second call. The second call is transmitted to a second user phone over the second local phone network. A real-time bi-directional voice communication session is established between the first user phone and the second user phone. | 2014-02-06 |
| 20140036908 | RECORDING PACKET ROUTES USING BLOOM FILTERS - In one embodiment, a Bloom filter is provided in a data packet signal functional to preferably encode the identifier of each nodal device and record the nodal hop count the signal traverses across in a computer network. The Bloom filter provided in a data packet signal has one or more fields. The recorded nodal path may updated en-route as the data packet traverses a nodal path in the computer network and/or the order of nodes traversed by the data packet in the computer network are encoded in the bloom filter. | 2014-02-06 |
| 20140036909 | SINGLE INSTRUCTION PROCESSING OF NETWORK PACKETS - Executing a single instruction/multiple data (SIMD) instruction of a program to process a vector of data wherein each element of the packet vector corresponds to a different received packet. | 2014-02-06 |
| 20140036910 | METHOD OF PROVISIONING H-VPLS SERVICES IN A MULTI-DOMAIN MPLS NETWORK - A method is disclosed for provisioning loop free H-VPLS traffic service in a multi-domain MPLS network having interconnected domains. The method comprises: provisioning pseudo wires (PWs) for MPTMP services in each domain of the MPLS network; defining multiple Split Horizon Groups (SHGs) in the network, wherein each SHG corresponds to a domain, for the H-VPLS service traffic and for each specific node of the MPLS network, automatically assigning indications to SHG and the pseudo wires connected to the specific node, wherein the same indication is assigned to all pseudo wires belonging to the same group (SHG-N), and wherein the step of assigning is characterized in that when traffic belonging to H-VPLS service crosses a border network node located between two interconnected domains, the SHG-N indication of PWs remains the same within a VPLS domain thereby preventing the service traffic from returning to the domain of origin. | 2014-02-06 |
| 20140036911 | Serial Communication Tapping and Transmission to Routable Networks - Apparatuses and methods for tapping serial communications and transforming the serial data into a format appropriate for routable networks are significant for purposes of security and troubleshooting, especially in critical infrastructure networks. Communication taps should be completely passive such that any failure would not interrupt the serial communications. Furthermore, automatic determination of unspecified serial protocol frames allow general implementation across various networks, or across devices within a single network, without the need to customize for each implementation. | 2014-02-06 |
| 20140036912 | MULTICAST GROUP ASSIGNMENT USING PROBABILISTIC APPROXIMATIONS - In one embodiment, a source node (e.g., responsible node) determines a plurality of destination nodes of a message, and generates a probabilistic data structure that encodes each of the plurality of destination nodes without any false negatives and with zero or more false positives. The source node may then transmit the message with the probabilistic data structure toward the plurality of destination nodes, wherein nodes receiving the message interpret the probabilistic data structure to determine whether the receiving node is probabilistically one of the intended plurality of destination nodes. | 2014-02-06 |
| 20140036913 | ACKNOWLEDGED MULTICAST CONVERGENCE - In one embodiment, a device connected to a network as part of a multicast tree receives a revised unicast routing and distributes the revised unicast routing and a query packet to a downstream device in the multicast tree. The device receives an acknowledgement message from the downstream device based on the query packet and determines a new multicast route based on the revised unicast routing and the acknowledgement message from the downstream device. | 2014-02-06 |
| 20140036914 | Campus Audio-Visual Control and Communication System - A method and system for distributing audio, visual, data, annunciator and other information within an educational facility utilizes a bit-wise addressing scheme to route UDP message packets to individual classrooms. The audio/video network system includes a central processor that controls a plurality of audio/video sources (e.g., DVD players, cable TV receivers, etc.). Output from audio/video sources is encoded by audio/video encoders for transmission via a local area network. Classroom control hubs within each classroom recognize data packets addressed with the bit-wise addressing scheme and in combination with a video decoder, recover the encoded audio/video signal for presentation within the classroom, such as by a video projector and classroom speakers. Transmitting audio/video information in UDP packets addressed with the bit-wise addressing scheme enables near simultaneous presentation of audio and video programs throughout the educational facility. The system can also manage traditional school bells and public address functions. | 2014-02-06 |
| 20140036915 | SYNCHRONIZATION OF MULTICAST INFORMATION USING BICASTING - Techniques that enable a network device such as a router to provide multicast routing services without interruption. Techniques are provided for using bicasting to synchronize multicast information maintained by a first processor and multicast information maintained by a second processor. A multicast protocol related event of packet is sent to both a first processor operating in active mode and a second processor operating in standby mode. Each processor then updates its multicast information based upon the bicasted event or packet. | 2014-02-06 |
| 20140036916 | METHODS FOR MANAGING MULTICAST TRAFFIC BETWEEN SOURCES SENDING DATA AND HOSTS REQUESTING DATA AND NETWORK EQUIPMENT USED TO IMPLEMENT THE METHODS - A device, system and method for controlling the flow of multicast data packets from sources sending data to hosts requesting the data. In one implementation, a router is situated in a data network between sources that send multicast data packets directed to a multicast group and hosts requesting to receive the multicast data packets. The router has one or more network interfaces in the direction of the hosts and stores for each network interface, each multicast group address and each host at least one data record arising from one or more data requests made by the hosts which includes multicast group and source information. The router stores executable instructions to receive messages originating from a host, update the status of the data sources for that host and implement the actions according to one or a combination of Tables 3, 4, 5, 6 and 7 disclosed herein. | 2014-02-06 |
| 20140036917 | ADDRESS RESOLUTION MECHANISM FOR HYBRID COMMUNICATION NETWORKS - A hybrid device can execute hybrid ARP functionality to manage one-to-many associations between a single network layer address and multiple link layer addresses of other hybrid devices. In accordance with the hybrid ARP functionality, the hybrid device can determine a transmission route, a corresponding one of a plurality of network interfaces of a destination hybrid device, and a corresponding one of a plurality of link layer addresses of the destination hybrid device, based on address resolution store entries associated with the destination hybrid device. The identified link layer address can be populated in a frame for transmission to the destination hybrid device. Additionally, the hybrid ARP functionality can be configured to operate in conjunction with conventional ARP functionality implemented by upper protocol layers. The hybrid ARP functionality can serve as a “proxy” between the conventional ARP functionality and one or more hybrid devices of the hybrid communication network. | 2014-02-06 |
| 20140036918 | HIGH-SPEED CONTENT ROUTING - Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a first input line card of the network device, a message, the message including a destination address; transmitting the message, by the first input line card, to the second input line card based on the determination that the second input line card is configured with routing information related to the destination address; determining, by the second input line card and based on the routing information related to the destination address, that the message should be forwarded via a first output line card of the network device to another network device; transmitting the message, by the second input line card, to the first output line card based on the determination that the message should be forwarded; and transmitting the message, by the first output line card, to another network device. | 2014-02-06 |
| 20140036919 | Forward Progress Assurance and Quality of Service Enhancement in a Packet Transferring System - A method comprising detecting at least one Quality of Service (QoS) requirement is met that indicates a very important packet (VIP) is outstanding from a source node in a multi-hop network comprising multiple nodes, sending an initiation message to an adjacent node in response to the detection that may activate a protocol in which a reserved channel is activated, and receiving the VIP via the reserved channel. Also, a method comprising receiving an initiation message from an adjacent node in a multi-hop network that comprises information identifying the VIP comprising a source node, a destination node, a packet type, wherein the initiation message activates a protocol in which a reserved channel is activated, searching for the VIP identified by the initiation message, and forwarding the VIP promptly if present via the reserved channel or forwarding an initiation message to adjacent nodes closer to the source node. | 2014-02-06 |
| 20140036920 | IDENTIFYING A PORT ASSOCIATED WITH A NETWORK NODE TO WHICH A SELECTED NETWORK LINK IS CONNECTED - A system for use in a computer network is disclosed for identifying the destination of a network link from a source of the link, in which a predetermined identifier is transmitted between the connected network nodes. | 2014-02-06 |
| 20140036921 | Systems and Methods for Deep Packet Inspection with a Virtual Machine - System and methods are provided for performing deep packet inspection of data packets. An example system includes a packet forwarding component and a virtual machine component. The packet forwarding component is configured to receive data packets for transmission and to select one or more of the data packets based at least in part on a first set of rules for deep packet inspection. The virtual machine component is configured to perform deep packet inspection on the selected data packets according to a second set of rules to determine whether the selected data packets are allowed for transmission. The packet forwarding component is further configured to transmit the selected data packets when the selected data packets are allowed for transmission after the deep packet inspection. | 2014-02-06 |
| 20140036922 | PRIORITY PACKET PROCESSING - A network node in a vehicular network processes packets based on a prioritization scheme. The prioritization scheme uses packet type, priority, source, destination, or other information to determine a priority of the packets. Packets can be stored in one of multiple queues organized according to packet type, or other criteria. In some cases, only one queue is used. The packets are time stamped when put into a queue, and a time to live is calculated based on the timestamp. The time to live, as well as other factors such as packet type, packet priority, packet source, and packet destination can be used to adjust a packet's priority within the queue. Packets are transmitted from the queues in priority order. In some cases, the network node can identify a top-priority packet, and transmit the top priority packet without first storing the packet in the queue. | 2014-02-06 |
| 20140036923 | Packet Transfer Apparatus - A packet transfer apparatus connects two networks of different protocols. The packet transfer apparatus, connected to a first communication network and a second communication network, performs the steps of: storing first destination correspondence information; receiving a packet of the first communication protocol; based on the first destination correspondence information, determining destination information of a packet of the second communication protocol corresponding to destination information of the received packet of the first communication protocol; generating the header of the packet of the second communication protocol, based on the determined destination information of the packet of the second communication protocol; converting the received one or more packets of the first communication protocol into one or more packets of the third communication protocol; and adding the generated header of the packet of the second communication protocol to the packets of the third communication protocol. | 2014-02-06 |
| 20140036924 | MULTI-CHASSIS LINK AGGREGATION IN A DISTRIBUTED VIRTUAL BRIDGE - Techniques are described for routing data frames using a distributed virtual bridge in a highly integrated networked system. The distributed virtual bridge creates and manages a type of LAG referred to as “unified link aggregation group” (ULAG). Two or more link aggregation groups that span multiple physically-separated switches or chassis (referred to as MLAGs) are unified or aggregated to form a ULAG. Applications view the ULAG as a single logical link, and as long as at least one of the sub links in any of the MLAGs that are part of the ULAG is operational, network connectivity is maintained. | 2014-02-06 |
| 20140036925 | COMPRESSING DATA PACKET ROUTING INFORMATION USING BLOOM FILTERS - In one embodiment, a Transit Information Bloom Filter (TIBF) signal component is generated for use with a routing protocol control message, the TIBF signal component identifying at least one parent node for a corresponding routing topology. The TIBF signal component is encoded in a generated Bloom filter. The parameters of the generated Bloom filter are based at least on one parent node to be encoded and a desired false positive rate for the Bloom filter. The address for each parent node is also encoded in the Bloom filter. | 2014-02-06 |
| 20140036926 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD - A transmission apparatus includes a detector to receive a multiplexed signal including a plurality of signals having different frame periods and detect switching information included in the multiplexed signal; a sorter to sort a plurality of pieces of detected switching information into one or more groups according to types of corresponding signals; an adjuster to adjust an order of transferring the switching information sorted, according to a period with which the switching information is received; a transfer unit to transfer the plurality of pieces of switching information sorted, based on a result of the adjustment performed by the adjuster; a controller to generate path setting information to set transmission paths of the signals based on the plurality of pieces of switching information transferred from the transfer unit; and a switch unit to set the transmission paths based on the path setting information generated by the controller. | 2014-02-06 |
| 20140036927 | FORCE PROTECTION SWITCHING METHOD IN ETHERNET RING NETWORK - Provided are a forced protection switching method and a forced protection switching clearing method in an Ethernet ring network. When an operator desires to block a port of a specific node for maintenance and repair, the operator gives a forced switching (FS) command to the specific node in order to block the port. When the operator desires to clear FS, the operator gives a clear command to the specific node in order to clear the blocked port. As a result, operation flexibility of the Ethernet ring network is provided. | 2014-02-06 |
| 20140036928 | Short Packet Transmission - Disclosed are various embodiments that provide short packet transmission by a network interface controller (NIC). The NIC may receive a signal indicating that a set of buffer descriptors is available for fetching from a host device. The NIC is configured to fetch the set of buffer descriptors from the host device, the set of buffer descriptors comprising a control flag, the control flag indicating whether the set of buffer descriptors comprises immediate packet data; and the NIC may transmit the immediate packet data as a transmit packet if the control flag indicates that the set of buffer descriptors comprises immediate packet data. | 2014-02-06 |
| 20140036929 | Phase-Based Packet Prioritization - A network node comprises a receiver configured to receive a first packet, a processor coupled to the receiver and configured to process the first packet, and prioritize the first packet according to a scheme, wherein the scheme assigns priority to packets based on phase, and a transmitter coupled to the processor and configured to transmit the first packet. An apparatus comprises a processor coupled to the memory and configured to generate instructions for a packet prioritization scheme, wherein the scheme assigns priority to packet transactions based on closeness to completion, and a memory coupled to the processor and configured to store the instructions. A method comprises receiving a first packet, processing the first packet, prioritizing the first packet according to a scheme, wherein the scheme assigns priority to packets based on phase, and transmitting the first packet. | 2014-02-06 |
| 20140036930 | Priority Driven Channel Allocation for Packet Transferring - A method comprising advertising to a second node a total allocation of storage space of a buffer, wherein the total allocation is less than the capacity of the buffer, wherein the total allocation is partitioned into a plurality of allocations, wherein each of the plurality of allocations is advertised as being dedicated to a different packet type, and wherein a credit status for each packet type is used to manage the plurality of allocations, receiving a packet of a first packet type from the second node, and storing the packet to the buffer, wherein the space in the buffer occupied by the first packet type exceeds the advertised space for the first packet type due to the packet. | 2014-02-06 |
| 20140036931 | SCALABLE INTERCONNECT MODULES WITH FLEXIBLE CHANNEL BONDING - The present application discloses apparatus and methods for increasing channel utilization for a high-speed serial interface of an integrated circuit (IC). A new circuit architecture is disclosed which provides circuitry that may be programmed flexibly to support a multitude of different channel bonding schemes. In accordance with one aspect of the invention, the new architecture decouples the granularity of control-signal channel bonding from the granularity of data-aggregation channel bonding. This advantageously allows optimization of configurations for both types of channel bonding. In another aspect of the invention, the logical boundaries of bonded user channels are decoupled from the physical boundaries of the PCS modules. This decoupling advantageously eliminates a rigid constraint of previous architectures. | 2014-02-06 |
| 20140036932 | System and Method of Providing a Broadband Digital Loop Carrier Cabinet - A broadband digital loop carrier and method for distributing communications signals to customers of a service provider may include a multi-service access platform unit and line termination unit in communication with the multi-service access platform unit. In one embodiment, the line termination unit is a multiplexer. The line termination unit may be configured to operate communications equipment that operates at bandwidths that are lower than cards operating in the multi-service access platform unit. | 2014-02-06 |
| 20140036933 | METHOD AND APPARATUS FOR ADJUSTING A RATE AT WHICH DATA IS TRANSFERRED, WITHIN A NETWORK DEVICE, FROM A MEDIA ACCESS CONTROLLER TO A MEMORY CONNECTED BETWEEN THE MEDIA ACCESS CONTROLLER AND A PHYSICAL-LAYER DEVICE - A first network device includes a host and a memory. A media access controller receives data from the host and stores the data in the memory at a first rate. A physical-layer device receives the data from the memory and transmits the data from the first network device to a second network device. The memory is connected between the media access controller and the physical-layer device. An amount of the data stored in the memory is based on the first rate and a second rate at which the physical-layer device transfers the data from the memory to the second network device. The first rate is greater than the second rate. A control circuit, based on an amount of the data stored in the memory, transmits a first frame to the media access controller. The media access controller, in response to the first frame, decreases the first rate. | 2014-02-06 |
| 20140036934 | METHOD AND SYSTEM FOR BURST FORMATTING OF PRECODED EGPRS2 SUPPORTING LEGACY USER MULTIPLEXING - A method and system for burst formatting of precoded EPGRS2 supporting legacy user multiplexing, the method generating, at a transmitter, a burst containing a plurality of inverse discrete Fourier transform (‘IDFT’) precoded symbols and plurality of non-IDFT precoded mid-amble symbols, wherein the IDFT precoded symbols are addressed for a first mobile device, and the non-IDFT precoded mid-amble symbols contain data addressed to a second mobile device. | 2014-02-06 |
| 20140036935 | SYSTEM AND METHOD FOR REAL-TIME DETECTION, IDENTIFICATION AND REPORTING OF MAC-SYNC FAILURES IN DISTRIBUTED TRUNKING - A system and method for real-time detection, identification, and reporting of mac-sync failures in distributed trunking (DT) are disclosed. In one example, a mac-sync failure between a pair of communicatively coupled DT switches is detected in real-time. Further, a type of mac-sync failure between the pair of DT switches is dynamically identified upon detecting the mac-sync failure. Furthermore, an information technology (IT) admin is dynamically notified about the type of mac-sync failure between the pair of DT switches. | 2014-02-06 |
| 20140036936 | TUNNEL FOLLOW-UP MESSAGE FOR TRANSPARENT CLOCK - A method for handling at least one encapsulated synchronization message by a tunnel node including a transparent clock, includes generating a signature from the encapsulated synchronization message and generating, or updating if it has already been generated, a tunnel follow-up message. The tunnel follow-up message includes the encapsulated synchronization message signature. The method further includes measuring the encapsulated synchronization message residence time across the tunnel node, and updating the correction field of the tunnel follow-up message with the measured residence time. | 2014-02-06 |
| 20140036937 | OTDM COHERENT TRANSCEIVER - An OTDM coherent transceiver and related methods and apparatus that employ a pulsed source which advantageously allows higher symbol rates without requiring higher speed electronics. | 2014-02-06 |
| 20140036938 | FIBER LASER - A fiber laser includes a light emitting unit that amplifies pulsed signal light in a rare-earth doped fiber and emits output light, and a filter arranged in an optical path of the output light emitted from the light emitting unit. The signal light is light having a longer wavelength than a wavelength with which a gain is maximized in a rare-earth doped fiber within a gain wavelength band of the rare-earth doped fiber. The filter does not allow transmission of light in at least a part of the wavelength band that includes the wavelength with which the gain is maximized in the rare-earth doped fiber, and allows transmission of light having the same wavelength as the signal light and light in a wavelength band on a longer wavelength side than the wavelength of the signal light. | 2014-02-06 |
| 20140036939 | MODULAR, HIGH ENERGY, WIDELY-TUNABLE ULTRAFAST FIBER SOURCE - A modular, compact and widely tunable laser system for the efficient generation of high peak and high average power ultrashort pulses. Peak power handling capability of fiber amplifiers is expanded by using optimized pulse shapes, as well as dispersively broadened pulses. Dispersive pulse stretching in the presence of self-phase modulation and gain results in the formation of high-power parabolic pulses. To ensure a wide tunability of the whole system, Raman-shifting of the compact sources of ultrashort pulses in conjunction with frequency-conversion in nonlinear optical crystals can be implemented, or an Anti-Stokes fiber in conjunction with fiber amplifiers and Raman-shifters are used. Positive dispersion optical amplifiers are used to improve transmission characteristics. An optical communication system utilizes a Raman amplifier fiber pumped by a train of Raman-shifted, wavelength-tunable pump pulses, to thereby amplify an optical signal which counterpropagates within the Raman amplifier fiber with respect to the pump pulses. | 2014-02-06 |
| 20140036940 | METHOD OF CONTROLLING WAVELENGTH TUNABLE LASER, CONTROL DATA STRUCTURE OF WAVELENGTH TUNABLE LASER, AND WAVELENGTH TUNABLE LASER - A method of controlling a wavelength tunable laser to control an oscillation wavelength based on a difference between a detection result of a wavelength by a wavelength detecting unit and a target value, the method includes: acquiring a first drive condition of the wavelength tunable laser to make the wavelength tunable laser oscillate at a first wavelength from a memory; calculating a second drive condition to drive the wavelength tunable laser at a second wavelength by referring to the first drive condition and a wavelength difference between the first wavelength and the second wavelength, the second wavelength differing from the first wavelength; and driving the wavelength tunable laser based on the second drive condition calculated at the calculating of the second drive condition. | 2014-02-06 |
| 20140036941 | Methods, Systems, and Devices for Timing Control in Electromagnetic Radiation Sources - In one embodiment, the invention relates to systems, methods and devices for improving the operation of an electromagnetic radiation source or component thereof. In one embodiment, the source is a laser source. A Fourier domain mode locked laser can be used in various embodiments. The sources described herein can be used in an optical coherence tomography (OCT) system such as a frequency domain OCT system. In one embodiment, laser coherence length is increased by compensating for dispersion. A frequency shifter can also be used in one embodiment to compensate for a tunable filter induced Doppler shift. | 2014-02-06 |
| 20140036942 | METHOD AND SYSTEM FOR COHERENCE REDUCTION - An optical system having coherence reduction capabilities includes a light source for generating a first light pulse; an asymmetrical pulse stretcher arranged to receive the first light pulse and to generate multiple light pulses, during a pulse sequence generation period, wherein the asymmetrical pulse stretcher includes multiple optical components which define a loop and a condenser lens is located between the asymmetrical pulse stretcher and an object, for directing the multiple pulses toward an area on the object At least two optical components of the multiple optical components are positioned in an almost symmetrical manner in relation to each other and introduce a coherence-related difference between at least two pulses of the multiple pulses. The pulse sequence generation period does not exceed a response period of a detector. | 2014-02-06 |
| 20140036943 | PATTERNED RETARDER AND OPTICAL ENGINE FOR LASER PROJECTION APPARATUS - A patterned retarder is described that may be used with a laser source array to obtain a combined beam suitable for three-dimensional laser image projection using orthogonal polarization states and/or orthogonal color spaces. | 2014-02-06 |
| 20140036944 | METHOD FOR ADJUSTING ELECTRO-OPTIC MODULATOR IN LASER DEVICE, AND LASER DEVICE - A laser device includes: a signal light source that outputs seed light; an electro-optic modulator that chops a portion of the seed light outputted from the signal light source and outputs signal light; an optical amplifier that amplifies the signal light outputted from the electro-optic modulator; a wavelength conversion optical element that wavelength converts the signal light amplified by the optical amplifier; a converted light detector that detects the signal light that has been wavelength converted by the wavelength conversion optical element; and an EU control unit that controls the operation of the electro-optic modulator, wherein the EU control unit is adapted, in the state in which the seed light is being outputted, to adjust bias voltage of the electro-optic modulator on the basis of the applied voltage when the intensity of the signal light after wavelength conversion detected by the converted light detector becomes substantially maximum. | 2014-02-06 |
| 20140036945 | SHARED THRESHOLD/UNDERSHOOT LASER OUTPUT DRIVER - A laser driver apparatus, system, and method include a single laser driver. One or more threshold levels and one or more undershoot levels can be digitally combined into a single output with respect to the single laser driver to reduce the output capacitance of the single laser driver and minimize circuit power, resulting in a faster and higher fidelity signal thereof. A decoder (e.g., thermometer decoding) can also be provided, wherein the threshold level(s) and the undershoot level(s) are thermometer decoded via the decoder. | 2014-02-06 |
| 20140036946 | DEVICE FOR MANAGING HEAT IN AN OPTICAL ELEMENT, AND RELATED HEAT-MANAGEMENT METHOD - A device is provided for managing heat in an optical element, including: the optical element; a material at a reference temperature; and an intermediate gas layer located directly between the reference-temperature material and the optical element, the intermediate gas layer being located on at least a portion of the thickness thereof in a temporary diffusion state defined by a thickness of the intermediate gas layer, such that the ratio of the mean free path of the gas molecules in the intermediate gas layer over said thickness is between 0.1 and 10. The thickness of the intermediate gas layer is between 10 μm and 5 mm. A corresponding heat-management method is implemented in the device for managing the temperature of an optical element. | 2014-02-06 |
| 20140036947 | EDGE-EMITTING SEMICONDUCTOR LASER ELEMENT - The present edge-emitting semiconductor layer element includes two-dimensional photonic crystals | 2014-02-06 |
| 20140036948 | OPTICAL SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - An optical semiconductor device includes a semiconductor substrate; a lower cladding layer formed over the semiconductor substrate; a quantum well active layer formed on the lower cladding layer; a diffraction grating layer formed over the quantum well active layer and having diffraction gratings formed in a surface thereof; and an upper cladding layer formed on the diffraction gratings of the diffraction grating layer. Further, a band gap in outer regions of the quantum well active layer that are adjacent to outer end surfaces of the optical semiconductor device is greater than the band gap in an inner region of the quantum well active layer that is located between the outer regions, and a thickness of one or more layers, which include the lower cladding layer and positioned between the semiconductor substrate and the quantum well active layer, is greater than or equal to 2.3 μm. | 2014-02-06 |
| 20140036949 | Light Emitting And Lasing Semiconductor Methods And Devices - A method for producing light emission from a two terminal semiconductor device with improved efficiency, includes the following steps: providing a layered semiconductor structure including a semiconductor drain region comprising at least one drain layer, a semiconductor base region disposed on the drain region and including at least one base layer, and a semiconductor emitter region disposed on a portion of the base region and comprising an emitter mesa that includes at least one emitter layer; providing, in the base region, at least one region exhibiting quantum size effects; providing a base/drain electrode having a first portion on an exposed surface of the base region and a further portion coupled with the drain region, and providing an emitter electrode on the surface of the emitter region; applying signals with respect to the base/drain and emitter electrodes to obtain light emission from the base region; and configuring the base/drain and emitter electrodes for substantial uniformity of voltage distribution in the region therebetween. | 2014-02-06 |
| 20140036950 | Light Emitting And Lasing Semiconductor Methods And Devices - A method for producing light emission from a two terminal semiconductor device with improved efficiency, includes the following steps: providing a layered semiconductor structure including a semiconductor drain region comprising at least one drain layer, a semiconductor base region disposed on the drain region and including at least one base layer, and a semiconductor emitter region disposed on a portion of the base region and comprising an emitter mesa that includes at least one emitter layer; providing, in the base region, at least one region exhibiting quantum size effects; providing a base/drain electrode having a first portion on an exposed surface of the base region and a further portion coupled with the drain region, and providing an emitter electrode on the surface of the emitter region; applying signals with respect to the base/drain and emitter electrodes to obtain light emission from the base region; and configuring the base/drain and emitter electrodes for substantial uniformity of voltage distribution in the region therebetween. | 2014-02-06 |
| 20140036951 | Device for Measuring or Determing a Characteristic of a Heat Flow Exchanged Between a First Medium and a Second Medium | 2014-02-06 |
| 20140036952 | SYSTEM FOR PERFORMING DILATOMETER TESTS ON THE SEAFLOOR - System for performing dilatometer tests on the seafloor including a unit to rest on the seafloor, including: a pushing rod including at its lower end a dilatometer blade, and a driver device to drive the pushing rod, and cause the dilatometer blade to penetrate into the seafloor and bring the dilatometer into a plurality of predetermined test depths; the driver device including: a clamping member to clamp the pushing rod, at least a pushing member for pushing down to the seafloor the clamping member when the clamping member is clamping the pushing rod, causing the rod and dilatometer blade to penetrate into the seafloor, and for pushing up the clamping member when the clamping member is not clamping the pushing rod, wherein the pushing member moves up and down the clamping member, and moves in an intermittent way the dilatometer between a predetermined test depth and the subsequent one. | 2014-02-06 |
| 20140036953 | TEMPERATURE SENSOR DEVICE AND RADIATION THERMOMETER USING THIS DEVICE, PRODUCTION METHOD OF TEMPERATURE SENSOR DEVICE, MULTI-LAYERED THIN FILM THERMOPILE USING PHOTO-RESIST FILM AND RADIATION THERMOMETER USING THIS THERMOPILE, AND PRODUCTION METHOD OF MULTI-LAYERED THIN FILM THERMOPILE - Disclosed are a temperature sensor device using a thermopile, the total number n of thermocouples thereon can be increased without greatly increasing the internal resistance of the thermopile r, providing high output level and high S/N ratio, a highly sensitive radiation thermometer using the device, and production method of the device using organic material for thin films to form the thermopile. These provide a standardized inexpensive multi-layered thin film thermopile, a radiation thermometer with high sensitivity, and production method of these devices. The temperature sensor device is a device wherein a thermopile which is formed on a thin film thermally isolated from a substrate is place in a temperature sensing part, and the thin film is formed as a multi-layered thin film, a layered thermopile is formed on each layered thin film, the substrate functioning as a heat sink which is one junction of the reference temperature of the thermopile. | 2014-02-06 |
| 20140036954 | METHOD AND DEVICE FOR DISSOLVED GAS ANALYSIS - A method for dissolved gas analysis is presented. The method includes the steps of irradiating a fluid with electromagnetic radiation; and determining a concentration of a gas as a function of a temperature change of the fluid in response to the irradiation. A device for such an analysis of dissolved gases in a fluid, and a system having such device are also described. | 2014-02-06 |
| 20140036955 | Device And Method For The Photothermic Investigation Of A Sample - A device for the photothermic investigation of a sample, with an excitation source for generating an electromagnetic excitation beam directed onto an excitation side of the sample, a detector for detecting thermal radiation emitted by a detection side of the sample, and a temperature-controllable sample chamber with a sample holder accommodated therein for the arrangement and temperature control of the sample. According to the invention, provision is made such that an adjustable detection lens system is provided between the sample holder and the detector, the detection lens system being adjustable in order to adjust a desired field of vision of the detector on the sample surface. | 2014-02-06 |
| 20140036956 | TEMPERATURE MEASUREMENT DEVICE AND TEMPERATURE MEASUREMENT METHOD - A temperature measurement device includes a first surface temperature measurement part performing a measurement to be used as a first surface temperature; a first reference temperature measurement part performing a measurement to be used as a first reference temperature; a first external air temperature measurement part performing a measurement to be used as a first external air temperature: a second surface temperature measurement part performing a measurement to be used as a second surface temperature; a second reference temperature measurement part performing a measurement to be used as a second reference temperature; a second external air temperature measurement part performing a measurement to be used as a second external air temperature; a deep-part temperature computation part computing the deep-part temperature of a subject to be measured; and an external air temperature computation part computing the external air temperature of the external air. | 2014-02-06 |
| 20140036957 | FIBRE OPTIC MONITORING INSTALLATION AND METHOD - The invention relates to installations for fibre optic monitoring of articles, and apparatus and methods for forming such installations, including a modular system and components for forming a fibre optic monitoring installation. Applications of the invention include the monitoring of vessels, chambers, and fluid conduits in industrial processing plants, and the invention has particular application to monitoring large vessels, for example temperature monitoring of vessels used in catalytic reforming processes. Convenient installation on or removal from the article being monitored is achieved by providing a support structure for the fibre optic length, which presents the fibre optic length in a preconfigured orientation suitable for monitoring the article. In a particular embodiment of the invention, the fibre optic length is disposed on a panel in a plurality of dense spiral patterns. | 2014-02-06 |
| 20140036958 | HYBRID MECHANICAL AND ELECTRICAL TRANSFORMER MONITOR - In accordance with the present invention, there is provided a hybrid mechanical and electrical transformer temperature monitor. The mechanical sensing mechanism drives mechanical switches, a local display and a sensing input to the electrical side of the monitor. The electrical portion of the temperature monitor has the ability to calculate winding temperature (with an additional current sensor), data log, actuate electrical switches and has a local display for winding temperature. | 2014-02-06 |
| 20140036959 | TEMPERATURE SENSOR - A temperature sensor includes two signal delaying apparatuses having the same internal circuit structure, a comparison apparatus, a multiplier, and a counting apparatus. One signal delaying apparatus is for delaying the phase of a step signal according to a temperature degree so as to form a first output signal. The other signal delaying apparatus operates at ZTC point and is for delaying the phase of the step signal so as to form a second output signal. The comparison apparatus receives the first and second output signals so as to output a third output signal accordingly. The multiplier receives the third output signal and a clock signal so as to output a fourth output signal accordingly. The counting apparatus is for counting the number of the pulses of the fourth output signal so as to generate a digital code accordingly. | 2014-02-06 |
| 20140036960 | Modular Thermowell and Method - A thermowell is provided for positioning on a pipeline or tank to measure the temperature. The thermowell comprises a head for receiving a probe, and the well has a closed end. An elongated hollow tubular connects the head and the well. The tubular includes one or more tubular parts, each of a selected axial length, joined by a friction welding to one of the more of the head, the well or another of the tubular parts. | 2014-02-06 |
| 20140036961 | FREQUENCY HOPPING - A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into S contiguous sub-bands each having N frequency resources, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, the frequency shift corresponding to an integer multiple of the number N frequency resources in each sub-band, the integer multiple being an integer from the range zero to S, and a transceiver for communicating information with the other communications node using the determined frequency resource. | 2014-02-06 |
| 20140036962 | SYNCHRONIZATION METHOD AND SYSTEM - A method of emission of a frequency synchronization signal comprises a first step of determining at least two first emission frequencies respectively associated with at least two first intervals separated temporally by a first duration. The first temporal intervals are of identical duration. The first durations are identical for identical first frequencies and the first durations are different for different first frequencies. The method also comprises a second step of emitting at least one synchronization signal in the first temporal intervals and by using the first frequency, the signal emitted in the first intervals being identical. | 2014-02-06 |
| 20140036963 | CLOCK SYNCHRONIZATION FOR LINE DIFFERENTIAL PROTECTION - A method and arrangement are provided for time synchronization between two geographically separated stationary clocks, such as first and second clocks located respectively at first and second ends of an AC power line. A first representation of an oscillating power line quantity is produced by measuring or recording the power line quantity at the first end of the power line, and time-stamping the first representation by the first clock. A second representation of the same oscillating power line quantity is produced by measuring the power line quantity at the second end of the power line, and time-stamping the second representation by the second clock. The first and second representations are compared to determine a clock offset between the first and second clocks. Based on the comparison, one or both of the first and second clocks are adjusted to reduce the determined clock offset. | 2014-02-06 |
| 20140036964 | Transmission Signal Generating/Detecting Method Using Code Sequences, Communication System Using The Same and Measurement System Using The Same - The present invention provides a transmission method which generates and sends a transmission signal generated from a multiplexing OFDM signal or a multiplexing wavelet-OFDM signal employing a multiplexing-spread chip sequence in which a chip of a code sequence for spread and a code sequence for combination, and a chip of a code sequence for localization are multiplied and multiplexed, and a receiving method which makes a high SN ratio improvement rate possible by converting the received signal to a frequency domain to acquire the multiplexing-spread chip sequence and by performing de-spreading and localizing processing to detect a localized pulse. According to the data transmission using the transmission and receiving method, data is mapped into a code sequence, and the receiving side can detect the data as the kind of code sequence, the shift time of a localized pulse and the polarity at a high SN ratio improvement rate. | 2014-02-06 |
| 20140036965 | SELECTION OF TRAINING SEQUENCES FOR MULTIPLE-IN MULTIPLE-OUT TRANSMISSIONS - A cellular communication system comprises a Multiple-In Multiple-Out (MIMO) transmitter and receiver. The MIMO transmitter comprises a message generator for generating MIMO messages comprising selected training sequences and transceivers transmitting the messages on a plurality of antennas. The training sequences are selected by a midamble selector from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with the cell of the MIMO transmitter and comprises disjoint subsets of training sequences for each of the plurality of antennas. The receiver comprises a transmit antenna detector which determines which antenna of the MIMO transmitter the message is transmitted from in response to the training sequence of the received message. | 2014-02-06 |
| 20140036966 | VARYING RATE OF DELETABLE BITS FOR SPREAD SPECTRUM CLOCKING - Varying insertion rates of deletable characters that are discarded by a receiver, as a function of transmission rate in spread spectrum clocking systems. Such systems can generate a spread spectrum modulation, based on their knowledge about the rate of transmission. The systems can dynamically adjust the rate/numbers of deletable characters that are inserted in the transmission. Accordingly, the insertion rate can increase (or decrease) when the transmission rate exceeds above (or falls below) a predetermined threshold. | 2014-02-06 |
| 20140036967 | SYSTEM AND METHOD FOR UPLINK MULTIPLE INPUT MULTIPLE OUTPUT TRANSMISSION - Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In some particular aspects, an uplink MIMO transmission (e.g., a rank 2 transmission) may be established, wherein a primary stream transport block size (TBS) is determined in accordance with a received scheduling grant, and a modulation scheme for the transmission is determined in accordance with the TBS. Further, a predetermined spreading factor, such as a 2×SF2+2×SF4 spreading factor, may be configured for both uplink streams, independent of the TBS. Finally, the uplink MIMO transmission may be made in accordance with the determined TBS, modulation scheme, and spreading factor. In some examples, if the primary stream TBS or a determined secondary stream TBS is less than a minimum threshold TBS, the transmission may be reconfigured as a rank 1 transmission. | 2014-02-06 |
| 20140036968 | Reducing noise in a sequence of data by linear and non-linear estimation - A method of reducing noise in a sequence of data by linear and non-linear estimation. The method includes receiving a noisy sequence of data indicative of a sequence of physical events; applying a non-linear technique to the noisy sequence to obtain an approximation of a noise-free sequence of data; subtracting the approximation from the noisy sequence to obtain an estimate of noise in the noisy sequence of data; applying a linear technique to the estimate of noise to obtain a filtered sequence; and adding the filtered sequence to the approximation of the noise-free sequence to obtain a reduced-noise sequence of data indicative of the sequence of physical events. | 2014-02-06 |
| 20140036969 | LOW COMPLEXITY ALL-DIGITAL PIM COMPENSATOR - The present disclosure relates to compensation for Passive Intermodulation (PIM) distortion in a receiver. In one embodiment, a communication device includes a transmitter that is configured to receive a digital input signal and output a radio frequency transmit signal, a main receiver configured to receive a radio frequency receive signal and output a digital output signal, and a PIM compensation subsystem. The radio frequency receive signal includes PIM distortion that is a non-linear function of the radio frequency transmit signal output by the transmitter. In order to compensate for the PIM distortion, a PIM compensation subsystem receives the digital input signal of the transmitter, generates a digital PIM estimate signal that is an estimate of the PIM distortion in the digital output signal of the main receiver, and subtracts the digital PIM estimate signal from the digital output signal of the main receiver. | 2014-02-06 |
| 20140036970 | TRANSCEIVER WITH SUB - SAMPLING BASED FREQUENCY SYNTHESIZER - Disclosed is a transceiver including a sub-sampling based frequency synthesizer with a sampling frequency f | 2014-02-06 |
| 20140036971 | WEIGHTING FILTER, AND CORRESPONDING METHODS AND DEVICES FOR TRANSMITTING AND RECEIVING AN ANALOG SIGNAL AND COMPUTER PROGRAM - A weighting filter is provided for use in a device for transmitting and/or receiving an analog signal. The device is capable of transmitting and/or receiving the analog signal in a predetermined frequency band consisting of two adjacent sub-bands, referred to as first and second sub-bands. The weighting filter includes: a first branch, which attenuates the analog signal; a second branch that filters the analog signal and has a bandwidth corresponding to the first sub-band or to the second sub-band; and a module that combines signals from the first and second branches. | 2014-02-06 |
| 20140036972 | TRANSCEIVER SYSTEM HAVING PHASE AND FREQUENCY DETECTOR AND METHOD THEREOF - A transceiver system having a phase and frequency locked architecture is described. The transceiver system includes a clock and data recovery type receiver, a frequency divider and a transmitter. The clock and data recovery type receiver receives an external signal from a host unit and extracts the external signal to generate a clock signal and a data signal. The frequency divider is used to divide the frequency of the clock signal for generating a reference clock signal. The transmitter transmits output data content based on the reference clock signal. | 2014-02-06 |
| 20140036973 | CALIBRATION FOR POWER AMPLIFIER PREDISTORTION - In one embodiment, a method comprising during a first calibration instance, converting at a first transconductance stage a first output voltage from a power amplifier of a transceiver to a first set of current signals; and during a second calibration instance not overlapping the first calibration instance, converting at a second transconductance stage a second output voltage from the power amplifier to a second set of current signals. | 2014-02-06 |
| 20140036974 | ADAPTIVE FILTER AND METHOD OF ADAPTIVE FILTERING - The present invention relates to an adaptive filter, which includes an analog filter; an analog-digital converter; a modem; a control unit connected to the modem to detect an adjacent interference signal adjacent to an interested channel signal; and a filter control signal generating unit connected to the control unit to generate a filter control signal for controlling a capacity of a variable capacitor, and a method of adaptive filtering and can control a filter passband adaptively to the adjacent interference signal. | 2014-02-06 |
| 20140036975 | SYSTEM AND METHOD FOR ANALYZING A NETWORK - System and methods for analyzing a network are disclosed. One method can comprise determining a parameter for each of a plurality of devices, generating a signature for each of the plurality of devices based upon the determined parameters, comparing the signatures of two or more of the plurality of devices, and grouping the plurality of devices based upon the comparison of the signatures of the two or more of the plurality of devices. | 2014-02-06 |
| 20140036976 | COMMON MODE SIGNAL REDUCTION IN POWERLINE COMMUNICATION DEVICES - An active common mode current limiting mechanism limits common mode currents in a powerline communication device. A powerline coupler determines a common mode signal component of an output signal of the powerline communication device. The powerline coupler provides voltage estimates of the common mode signal component to a signal processing unit. The signal processing unit generates samples of the voltage estimates of the common mode signal component. The signal processing unit adjusts transmit voltage levels of the powerline communication device based on the samples of the voltage estimates of the common mode signal component to limit the common mode signal component of the output signal. | 2014-02-06 |
| 20140036977 | Methods and Systems for Self-Referencing Single-Ended Signals - A single-ended receiver compares signal levels representing current symbols to levels representing immediately preceding symbols to resolve the symbols. The receiver applies offsets selected based on resolved prior symbols to interpret successive like-symbols. | 2014-02-06 |
| 20140036978 | AUTOMATIC GAIN CONTROL IN A RECEIVER - Automatic gain control in a receiver. A method for controlling operating range of an analog-to-digital converter (ADC) by an automatic gain control circuit includes estimating a peak-to-average ratio corresponding to an analog signal from digital samples of the analog signal. The method includes determining a peak value corresponding to the analog signal based on the peak-to-average ratio. Further, the method includes maintaining magnitude of the analog signal at an input of the ADC and gain of the receiver based on the peak value. | 2014-02-06 |
| 20140036979 | SYSTEMS AND METHODS FOR LOOP LENGTH AND BRIDGED TAP LENGTH DETERMINATION OF A TRANSMISSION LINE - Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps. | 2014-02-06 |
| 20140036980 | METHOD AND SYSTEM FOR DETECTING NON-LINEAR DEVICES - To assist with the detection of unfiltered device(s), a system observes how the received noise changes between two links as the transmit signal is changed. Harmful unfiltered nonlinear devices will generate significant noise that depends on the transmitted signals; therefore, this additional noise can be quantified to some extent by comparing the observed noise for two different transmit signals. The total noise can be determined from the SNR if the received signal is known. The received signal may be read directly in some non-standard systems, or it may be determined from the known transmit signal and channel attenuation, which is sometimes the case in standard-compliant links, but often with a relatively large error. To circumvent this problem, certain embodiments of this invention only consider the change in noise between two links with the same channel attenuation. This differential comparison makes it unnecessary to accurately know the channel attenuation. | 2014-02-06 |
| 20140036981 | SYSTEMS AND METHODS FOR CHARACTERIZING TRANSMISSION LINES USING BROADBAND SIGNALS IN A MULTI-CARRIER DSL ENVIRONMENT - Using DSL modems as data collectors, the modems processes the data to, for example, allow easier interpretation of the line characteristics. In particular, the modems postprocess the data including calibration, filter compensation, determination of the SNR medley from the bits and gains tables and rate conversion. The interpretation process uses the postprocessed data and determines loop characterization, interferer detection, a data reduction estimation and a data rate estimation. The outputs of these determinations least allow for the characterization of the line conditions between the two modems. | 2014-02-06 |
| 20140036982 | High Bandwidth Equalizer and Limiting Amplifier - Embodiments of the present disclosure enable bandwidth extension of receiver front-end circuits without the use of inductors. As a result, significantly smaller and cheaper receiver implementations are made possible. In an embodiment, bandwidth extension is achieved by virtue of very small floating capacitors that are coupled around amplifier stages of the receiver front-end circuit. Each of the capacitors is configured to generate a negative capacitance for the preceding stage (e.g., equalizer or amplifier), thus extending the bandwidth of the preceding stage. A capacitively-degenerated cross-coupled transistor pair allows bandwidth extension for the final (e.g., amplifier) stage. Embodiments further enable DC offset compensation with the use of a digital feedback loop. The feedback loop can thus be turned on/off as needed, reducing power consumption. | 2014-02-06 |
| 20140036983 | EQUALIZATION DEVICE, RECEPTION DEVICE AND EQUALIZATION METHOD - This equalization device and method, while preventing an expansion of circuit size, enable high-speed detection of a CIR in order to effectively achieve frequency domain equalization even when the phase of the received signal is significantly different from the phase of the known signal, and when the transmission channel has large temporal variations. A reference signal extraction unit ( | 2014-02-06 |
| 20140036984 | Equalization of a Distributed Pilot OFDM Signal - A technique for equalizing a distributed pilot OFDM signal with decision feedback involves correlating a received OFDM signal against a pilot reference to obtain a coarse channel estimate, where the received OFDM signal includes a distributed pilot signal and an OFDM data signal. The received OFDM signal is equalized based on the coarse channel estimate and the distributed pilot signal is removed to generate a coarse data signal estimate. The coarse data signal estimate is removed from the received OFDM signal using the coarse channel estimate to generate a residual pilot signal. The residual pilot signal can then be correlated against the pilot reference to obtain a fine channel estimate. The received OFDM signal is equalized based on the fine channel estimate, and the distributed pilot signal is removed to produce a fine data signal estimate from which data is recoverable. | 2014-02-06 |
| 20140036985 | DECISION FEEDBACK EQUALIZATION WITH SELECTABLE TAP - A system generates a set of candidate signals based on a received signal, whereby each candidate signal represents an adjustment of the signal for a different amount of potential noise. The system selects one of the candidate signals based on a selected subset of previous samples and the values of the selected subset of samples. The subset of previous samples is selected based on a predicted noise pattern. | 2014-02-06 |
| 20140036986 | COARSE PHASE ESTIMATION FOR HIGHLY-SPECTRALLY-EFFICIENT COMMUNICATIONS - Methods and systems are provided for coarse phase estimation for highly-spectrally efficient communications. An example method may include, equalizing, in a receiver, a received inter-symbol correlated (ISC) signal to generate an equalized ISC signal. A phase adjustment signal may be generated based on an ISC feedback signal. The ISC feedback signal may be generated using a sequence estimation process and a non-linearity model. A phase of the equalized ISC signal may be adjusted using the generated phase adjustment signal, to generate a phase adjusted partial response signal. The phase adjustment signal may be generated based on a phase difference between the equalized ISC signal and the partial response feedback signal. | 2014-02-06 |
| 20140036987 | DECODER FOR DECODING PWM CODE AND COMMUNICATIONS SYSTEM - A decoder for decoding an input signal coded with a pulse width modulation code as a line code to an output signal in a binary code, has a first memory, a first timer, a determination circuit and a first controller. The information on a duty duration of the PWM code, corresponding to at least one kind of the output signals, is stored on the first memory. The first timer has a capacity to measure the duty duration of the input signal. The determination circuit has a capacity to determining which kind of the output signals corresponds to the input signal, on the basis of the information stored on the first memory and the duty duration measured with the first timer. The first controller has a capacity to updating the information stored on the first memory, on the basis of the determination result and the measured duty duration. | 2014-02-06 |
| 20140036988 | TRANSCEIVER FOR SERIAL DATA COMMUNICATION UTILIZING PWM ENCODED SIGNAL - Serial data are transmitted between transceivers via a communication path, each bit expressed by a dominant code or a recessive code which vary between dominant and recessive levels, the dominant code having a greater proportion of duration at the dominant level. A device (clock master) can continuously output successive recessive codes to the communication path, in which condition a transceiver can transmit a dominant code by producing an output drive signal which overwrites a part of a recessive code, currently being received from the communication path, to the dominant level. The output drive signal is shaped with a steeper edge slope at a transition from an inactive to an active level than from the active to the inactive level, enabling an increased data transmission rate without increased noise. | 2014-02-06 |
| 20140036989 | METHOD FOR ESTABLISHING AN IP-BASED COMMUNICATIONS CONNECTION BETWEEN AN ELECTRIC VEHICLE AND A CHARGING CONTROL UNIT - A method establishes an IP-based communications connection between an electric vehicle and a charge control unit associated with a charging station assigned an IP address. The electric vehicle is connected to the charging station via a charging cable and/or an inductive charge coupling for charging and/or discharging. A first communication connection that can be used exclusively by the electric vehicle and the charging station is provided via the charging cable and/or the inductive charging coupling. The electric vehicle having the charging control unit and the charging infrastructure can communicate via a second communications connection that can be used in parallel by other electric vehicles and charge control units. An identification is provided to the electric vehicle and the charging control unit. An IP-based communication is established between the electric vehicle and the charging control unit, using the IP address. | 2014-02-06 |
| 20140036990 | SYSTEM AND METHOD FOR OPTIMIZING A VIDEO STREAM - A method for optimizing a video stream, including: retrieving an original parameter set for an original bit stream in a video container received from an origin server; and writing stream-specific metadata to a header for the video container, wherein the stream-specific metadata includes the original parameter set for the original bit stream and an optimized parameter set for an optimized bit stream. | 2014-02-06 |
| 20140036991 | Method and Apparatus for Sample Adaptive Offset in a Video Decoder - A method and apparatus for SAO (sample adaptive offset) processing in a video decoder are disclosed. Embodiments according to the present invention reduce the required line buffer associated with the SAO processing. According to one embodiment, tri-level comparison results for one deblocked pixel row or column of the image unit are determined according to SAO type of the deblocked pixel row or column. The tri-level comparison results are stored in a buffer and the tri-level comparison results are read back from the buffer for SAO processing of the subsequent row or column from a subsequent image unit. The comparison results correspond to “larger”, “equal” and “smaller” states. The comparison results can be stored more efficiently. | 2014-02-06 |
| 20140036992 | Method and Apparatus for Video Processing Incorporating Deblocking and Sample Adaptive Offset - A method and apparatus for applying DF processing and SAO processing to reconstructed video data are disclosed. The DF processing is applied to a current access element of reconstructed video data to generate DF output data and the deblocking status is determined while applying the DF processing. Status-dependent SAO processing is applied to one or more pixels of the DF output data according to the deblocking status. The status-dependent SAO processing comprises SAO processing, partial SAO processing, and no SAO processing. The SAO starting time for SAO processing is between the DF-output starting time and ending time for the current block. The DF starting time of a next block can be earlier than the SAO ending time of the current block by a period oft, where t is smaller than time difference between the DF-output starting time and the DF starting time of the next block. | 2014-02-06 |
| 20140036993 | ADAPTIVE VIDEO TRANSCODING METHOD AND SYSTEM - Disclosed is an adaptive video transcoding system including: a video transcoding device for calculating a minimum required compression rate required by a measured streamable bandwidth, selecting, as a transcoding encoding option, each of encoding options making up an encoding option combination with the lowest CPU usage rate of when at least one encoding option, from an encoding option combination having a greater compression rate of when at least one encoding option is combined and encoded, than the minimum required compression rate, is combined and encoded, and using the selected transcoding encoding option to transcode and transmit the video contents to a user terminal; and a user terminal for receiving and displaying the video contents transcoded according to the transcoding encoding option from the video transcoding device. | 2014-02-06 |
| 20140036994 | MOTION PICTURE ENCODING APPARATUS AND METHOD THEREOF - Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit. | 2014-02-06 |
| 20140036995 | Method and Apparatus for Selecting a Coding Mode - A method and apparatus for selecting a coding mode for a block of a current picture are disclosed. For example, the method selects a coding mode in accordance with a cost function, for coding the block, wherein the cost function comprises a coding distortion parameter and a number of coding bits parameter, wherein said coding distortion parameter is measured in accordance with at least one of: between a prediction residual and a reconstructed prediction residual, or between a transformed prediction residual and a dequantized transformed prediction residual, wherein the number of coding bits parameter is computed in accordance with at least one of: from a true number of compressed bits resulting from coding said block, directly from a plurality of bins, or directly from a plurality of quantized transform coefficients. | 2014-02-06 |
