11th week of 2010 patent applcation highlights part 32 |
Patent application number | Title | Published |
20100067506 | WIRELESS NETWORK - A wireless network ( | 2010-03-18 |
20100067507 | METHOD AND APPARATUS FOR UTILIZING A SECOND RECEIVER TO ESTABLISH TIME AND FREQUENCY - Apparatus and methods for synchronizing a network element (e.g. access points, femtocells, etc.) to a master network (such as a cellular network) to provide accurate frequency and/or time references for their internal systems. In one embodiment, the network element utilizes a dedicated receiver (or transceiver) to receive timing information from the master network. The implementation of the dedicated receiver is advantageous for cost and simplicity reasons. Furthermore, the timing or frequency information, as received from the master network, is used to correct the network element's internal timing. In addition, the network element's internal timing can operate in open-loop mode, if no master network can be found, thereby allowing for the device to continue providing service to network users. Additionally, a dedicated receiver can also receive information (e.g. location, SID, NID, SSID, etc.) local to the network element, such information may be useful or required for seamless operation within the master network. | 2010-03-18 |
20100067508 | METHOD FOR SELECTING SERVING PNC BASED ON FER IN WIRELESS MESH NETWORK - Provided is a method for selecting a serving PNC at a wireless device in a wireless mesh network for data communication. In the method, an initial PNC is selected if data is generated to transmit. Then, an initial MAC frame size is decided and data communication is performed with the selected initial serving PNC. A PNC having a best channel state is reselected from PNCs in a same coverage as a serving PNC after selecting the initial serving PNC. A MAC frame size is decided for the reselected serving PNC and data communication with the reselected serving PNC is performed. The data communication is terminated if a FER of the reselected serving PNC is larger than a maximum allowable FER or if there is no data to transmit after the data communication is performed. | 2010-03-18 |
20100067509 | RAPID LOCAL ADDRESS ASSIGNMENT FOR WIRELESS COMMUNICATION NETWORKS - According to one embodiment, apparatus having corresponding computer programs comprise: a receiver to receive a first wireless signal from a wireless network; an address module to determine a type of Internet Protocol address assignment employed by the wireless network based on the first wireless signal; and a connection module to establish a network-layer connection to the wireless network based on the type of Internet Protocol address assignment determined by the address module. According to another embodiment, apparatus having corresponding computer programs comprise: a transmitter to transmit a first wireless signal, wherein the first wireless signal represents an indication of a type of Internet Protocol address assignment employed by a wireless network connected to the apparatus. | 2010-03-18 |
20100067510 | Vehicle Multi-Media Communications Point Source - An apparatus to provide a multi-media communications access point for vehicles that permits subscribing devices to transmit file data, and telephonic or video data to other remote devices via an HSDPA RF communications network. The apparatus includes a wireless access switch, a cellular data transceiver, an optional data network signal booster, two antennas, and an input-output interface panel. Firmware in the wireless access point allows high-speed access to the cellular data network and point to point mobile communications from one apparatus to another minor apparatus. | 2010-03-18 |
20100067511 | METHOD AND ARRANGEMENT FOR PREAMBLE DETECTION - In a hardware accelerator for preamble detection of a Physical Random Access Channel (PRACH) in a CDMA based communication system, buffering means stores input samples received at an antenna at a first rate, addressing means read a predetermined consecutive number of the input samples in parallel at a second different rate. The hardware accelerator is further partitioned into a reusable unit providing code correlation, and a preamble detection dedicated unit providing signature code despreading. The reusable unit comprises means for correlating at least a subset of the previously read input samples with a predetermined code to provide a correlation output for a number of time lags. The preamble detection dedicated unit comprises means for preamble detection configured for providing Hadamard Transformation of the correlation output to enable preamble detection, and all means are arranged on a single hardware chip to enable high-speed data transmissions between the respective means. | 2010-03-18 |
20100067512 | Uplink transmit diversity schemes with 4 antenna ports - A system and method for uplink transmit diversity. The system and method include a pairing device configured to pair a number of symbol sets to form paired sets. The paired sets are mapped onto a number of layers. The layers are precoded into at least two pairs of two precoded streams and the precoded streams are mapped onto at least two antenna ports. Further, a number demodulation reference signals are transmitted via a portion of the resource elements for at least two antenna ports such that, a first number of demodulation reference signals are transmitted via a portion of the resource elements of a first pair of antenna ports and a second number of demodulation reference signals are transmitted via a portion of the resource elements of the second pair of antenna ports. | 2010-03-18 |
20100067513 | COMMUNICATION TERMINAL DEVICE, TFC SELECTION METHOD, AND PROGRAM - A communication terminal device is operable to multiplex a plurality of channel signals based on TFC (Transport Format Combination) selected by performing a TFC selection and transmit it. The communication terminal device includes a storage unit operable to store a plurality of combination of classifications to which the gain factors belong, as a combination of gain factors for weighting each of the plurality of channel signals, and to store a quantity of reduction of a maximum transmission power when the plurality of channel signals in association with each combination of the plurality of classifications are multiplexed and transmitted, and a TFC selection unit operable to select the TFC by reading out the quantity of reduction in association with the combination of the classification corresponding to the combination of the gain factors in each TFC from the storage unit when the TFC selection is performed. | 2010-03-18 |
20100067514 | WIRELESS COMMUNICATION SYSTEMS WITH FEMTO NODES - Systems and methods for performing a handoff of an access terminal from a macro node to a femto node are disclosed. In one embodiment, the femto node is configured to transmit a predetermined signal for determining signal quality and an identifier that uniquely identifies the femto node to the access terminal. The access terminal is configured to transmit the identifier to the macro node. The femto node is identified as a hand in target based on the transmitted identifier and the macro node is configured to hand in the access terminal to the femto node. | 2010-03-18 |
20100067515 | METHODS AND APPARATUS FOR FRAME NUMBER SYNCHRONIZATION IN WIRELESS COMMUNICATION NETWORKS - A method for frame number synchronization in a wireless communication network may be implemented by a base station. The method may include determining a current time from a timing source that is common to multiple other base stations. The method may also include determining a time offset between the current time and a reference time, wherein the base station and the multiple other base stations use the same reference time for determining the time offset. The method may also include determining a current frame number based on the time offset. | 2010-03-18 |
20100067516 | SYNCHRONIZED CHANNEL ACCESS IN COEXISTING WIRELESS NETWORKS - A system and method for arbitrating channel access in a wireless device including co-located network transceivers are disclosed herein. A wireless device includes a first wireless transceiver and a second wireless transceiver. The first transceiver is configured for operation with a first wireless network. The second transceiver is configured for operation with a second wireless network. The wireless device further includes logic that determines which of the first and second transceivers is enabled to transmit at a given time. The logic causes the first transceiver to transmit a notification signal indicating a time period during which the second transceiver of the wireless device will perform a first wireless transaction, and during which, based on receiving the notification signal, a different wireless device performs a second wireless transaction via the second wireless network without transmitting a notification signal. | 2010-03-18 |
20100067517 | PILOT SIGNALS FOR SYNCHRONIZATION AND/OR CHANNEL ESTIMATION - The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. This property can be used to slot-by-slot, double-check frame synchronization timing, single frame synchronization and/or channel estimation and allows reduction of the synchronization search time. Further, the present invention allows a simpler construction of a correlator circuit for a receiver. A frame synchronization apparatus and method using an optimal pilot pattern is used in a wide band code division multiple Access (W-CDMA) next generation mobile communication system. | 2010-03-18 |
20100067518 | Multicast Systems, Methods, and Computer Program Products - Systems, methods, and computer-program products enable multicasts. Data corresponding to a multicast from a source is received from a native multicast address. Other data corresponding to the multicast from the sources is also received from a mesh network. The data and the other data is assembled to generate combined data, and at least some of the combined data is stored or displayed. | 2010-03-18 |
20100067519 | METHOD AND APPARATUS FOR PRIORITIZING VOICE OVER INTERNET PROTOCOL SIGNALING MESSAGES - A method and apparatus for enabling prioritization of signaling messages in a communication network are disclosed. For example, the method receives at least one signaling message, and classifies each of the at least one signaling message. The method schedules each of the at least one signaling message for processing, and discards selectively one or more signaling messages that have been scheduled under an overload condition. | 2010-03-18 |
20100067520 | INFORMATION COMMUNICATION TERMINAL - A information communication terminal is provided which includes: a voice communication device that transmits and receives voice signals to and from an other telephone equipment via a public switched telephone network; a data communication device that transmits and receives call data signals as digitized voice signals to and from an other terminal via an IP network; a message communication device that transmits and receives data signals of an instant message which contains character information to and from an other terminal via an IP network; and a control device that makes the message communication device transmit the data signals of the instant message to a destination of the call data signals so as to enable communication by voice as well as character information, when one of the voice signals and the call data signals is received while the other is being transmitted and received. | 2010-03-18 |
20100067521 | Internet protocol telephone system - An internet protocol telephone includes a substrate having an input and an output that are capable of being connected to the internet protocol (IP) network. A relay is disposed on the substrate and is connected between the input and the output of the substrate. The relay includes first and second native FETs that have a threshold voltage of approximately zero volts. Therefore, the relay is nominally turned-on, even when little or no voltage (or power) is applied to the IP telephone substrate, as during the discovery mode of IP telephone operation. During discovery mode, The IP phone is configured to be responsive to extended link pulses and block data packets that are associated with legacy devices. Data packets have a higher signal duration and are more continuous than extended link pulses. The IP phone includes a switchable ground that is connected to the gates of the native devices, and is controlled by a rectifier and filter circuit that are connected to the substrate input. If the IP phone receives legacy data packets during discovery mode, then the high signal duration and continuous nature of the data packets are sufficient to cause the rectifier to generate a rectified signal having sufficient amplitude to activate the switchable ground, so as to ground the gates of the native devices and therefore turn-off the native devices. Therefore, the data packets are rejected and are not passed back to the switch. Extended link pulses have a frequency that is too low to generate a rectified signal that is sufficient to activate the switchable ground, and therefore the native devices remain turned-on. Accordingly, the extended link pulses are passed back to the switch. | 2010-03-18 |
20100067522 | METHOD FOR DETERMINING PACKET TYPE FOR SVC VIDEO BITSTREAM, AND RTP PACKETIZING APPARATUS AND METHOD USING THE SAME - Provided are a method for determining the packet type for a Scalable Video Coded (SVC) video bitstream, and a Real-time Transport Protocol (RTP) packetizing apparatus and method using the same. The method for determining a packet type for a Scalable Video Coded (SVC) video bitstream, which includes the steps of: a) deriving temporal and spatial hierarchy information between Network Abstraction Layer (NAL) units from field information defined in the NAL unit headers of scalable layers; b) detecting the type of encoding information by applying combined scalability encoding to the hierarchical structure of the Scalable Video Coding (SVC); and c) determining a Real-time Transport Protocol (RTP) packet type for the corresponding SVC video bitstream by using the derived temporal and spatial hierarchy information between the NAL units and the detected type of encoding information. | 2010-03-18 |
20100067523 | INTERCONNECT NETWORK FOR OPERATION WITHIN A COMMUNICATION NODE - An interconnect network for operation within communication node, wherein the interconnect network may have features including the ability to transfer a variety of communication protocols, scalable bandwidth and reduced down-time. According to one embodiment of the invention, the communication node includes a plurality of I/O channels for coupling information into and out of the node, and the interconnect network includes at least one local interconnect module having local transfer elements for transferring information between the plurality of I/O channels; and scaling elements for expanding the interconnect network to include additional local interconnect modules, such that information can be transferred between the local interconnect modules included in the interconnect network. | 2010-03-18 |
20100067524 | Method and system for selecting a data transmission rate - A method and system for selecting a data transmission rate in a broadband network. The broadband network is connected to an access network for providing access for user equipment to the broadband network. Rate information is received from the user equipment. The rate information comprises a rate for transmitting data over the access network. Thereafter, a rate for transmitting data over the broadband network is selected. The selected rate for the broadband network is preferably less than or substantially equal to the rate for transmitting data over the access network. | 2010-03-18 |
20100067525 | STREAMING COMMUNICATION SYSTEM - A streaming communication apparatus transmits a packet requesting reservation of a bandwidth required for streaming communication towards a communication relay apparatus. The communication relay apparatus reserves a required bandwidth according to the request packet. Accordingly, stable streaming communication can be carried out. | 2010-03-18 |
20100067526 | Method Of Controlling A Wind Turbine In A Wind Power Plant - A method of controlling a wind turbine in a wind power plant, the wind turbine including a wind turbine controller and at least one connected wind turbine component, the wind turbine controller receiving data packets originating from a central controller, at least one of the data packets including instructions, the wind turbine controller performing the followings steps if one of the data packets includes a combined “write/read” instruction:
| 2010-03-18 |
20100067527 | Packet Transfer Apparatus - A router stands by in a power saving state when there is no multicast joining message received. The router increases transfer performance with granularity such as the bandwidth of each multicast channel or the maximum bandwidth of each receiving line when a multicast joining message is received. On the other hand, the router decreases transfer performance with granularity such as the bandwidth of each multicast channel or the maximum bandwidth of each receiving line when a multicast disjoining message is received. The aforementioned processing permits achievement of power saving in the router connected to a multicast network. | 2010-03-18 |
20100067528 | METHOD AND APPARATUS FOR PROVIDING CONGRUENT MULTICAST AND UNICAST ROUTING - A method and apparatus for enabling congruent multicast and unicast routing in a Virtual Private Network (VPN) are disclosed. For example, the present method receives a request to join a multicast group to receive multicast data traffic by a receiver behind a remote Provider Edge (PE) router. The method then discovers a multicast source to allow said remote PE router to use a direct path to receive said multicast data traffic from a source. | 2010-03-18 |
20100067529 | METHOD, DEVICE, AND SYSTEM FOR MESSAGE PROCESSING - A message processing method, device, and system are provided in the embodiments of the present invention. The method comprises: receiving service messages and identifying the protocol type of the service messages; performing protocol adaptation according to the protocol type; and reconstructing the content of the service messages after protocol adaptation according to the corresponding content reconstructing policies and sending the service messages after content reconstructing. The present invention implements information embedment into the content over different protocols without proxy server settings. | 2010-03-18 |
20100067530 | DATA COMMUNICATION SYSTEM AND METHOD FOR PREVENTING PACKET PROLIFERATION IN A MULTI-DEVICE LINK AGGREGATE NETWORK - A Provider Edge PE | 2010-03-18 |
20100067531 | APPARATUS AND METHOD FOR CONTROLLING INDEPENDENT CLOCK DOMAINS TO PERFORM SYNCHRONOUS OPERATIONS IN AN ASYNCHRONOUS NETWORK - Method and apparatus are disclosed for synchronizing multimedia in asynchronous networks. In this invention, clock domains are first reduced to separate hardware clock correction circuits at the separate endpoints of an asynchronous network. At each end of the network node, the controllable input device such as a video device is synchronized to the non-controllable output device such as a set top box to prevent unknown or poor-quality alterations by the output device. Output device timestamp packets are regularly sent to the input device, which then adjusts its clock accordingly. The exchange of packets between input devices over the asynchronous network is then subjected to a software-based scheme to effectively synchronize these devices. | 2010-03-18 |
20100067532 | Communication Path Control System, Program, and Storage Medium Therefor - A communication path control system includes a storage device which stores data of paths between communication nodes; and a communication path selecting device which selects a path candidate for setting a new communication path among path candidates, each of which can be provided as a communication path between the communication nodes. Based on the data of paths, the communication path selecting device obtains MAX(PN) for each of the path candidates P | 2010-03-18 |
20100067533 | NETWORK CONTROL APPARATUS, METHOD, AND PROGRAM - To enable network control (particularly, transmission band allocation) that excels in follow-up ability to follow changes in a network, locality, and responsiveness. A network control apparatus controls a wireless ad-hoc network and includes: a routing processing unit ( | 2010-03-18 |
20100067534 | DIGITAL CONTENT DELIVERY SYSTEM - The digital contents distribution system of the present invention distributes digital contents through first and second networks. A server is connected to the first network, and clients for receiving and displaying or reproducing the digital contents are connected to the second network. The server divides digital contents held therein into a plurality of packets, and transmits packets of a minimum unit for constructing the digital contents to the second network. The clients include means for holding the digital contents therein by use of the packets of the minimum unit received from the server and packets received from other clients constructing the second network. | 2010-03-18 |
20100067535 | Packet Router Having Improved Packet Classification - A computer-implemented method for classifying received packets using a hardware cache of evolving rules and a software cache having an original rule set. The method including receiving a packet, processing the received packet through a hardware-based packet classifier having at least one evolving rule to identify at least one cache miss packet, and processing the cache miss packet through a software based packet classifier including an original rule set. Processing the cache miss packet includes determining whether to expand at least one of the at least one evolving rules in the hardware-based packet classifier based on the cache miss packet. The determination includes determining whether an evolving rule has both the same action and lies entirely within one of the rule of the original rule set. | 2010-03-18 |
20100067536 | Multimodal Data Switch - A transit memory assembly of a rotator-based switching node is logically partitioned into two sections, one operated as a common-memory switch fabric and the other as a time-shared space-switch fabric. The composition of data received at input ports of the switching node determines adaptive capacity division between the two sections. Based on an indication of traffic type, a controller of at least one input port selects one of the two sections. The space-switch section enables scalability to a high transport capacity while the common-memory section enables scalability to a high processing throughput. | 2010-03-18 |
20100067537 | METHOD FOR IMPLEMENTING AN INTERNET PROTOCOL (IP) CHARGING AND RATING MIDDLEWARE PLATFORM AND GATEWAY SYSTEM - A method for Internet Protocol (IP) charging and rating gateway within a system having: (i) a proxy server for connection to an Authentication, Authorization, and Accounting (AAA) server; (ii) an access gateway, (iii) an IP classification engine for connection between a data network and the access gateway; and (iv) a gateway controller connected to the proxy server and the IP classification engine, including the steps of: (a) receiving IP packets at the IP classification engine, the IP packets originating from the data network and destined for a subscriber device via the access gateway; (b) classifying the IP packets according to the protocol of each of the packets at the IP classification engine; and (c) selectively instructing the IP classification engine to permit or deny the flow of IP packets between the data network and the access gateway at the gateway controller. Preferably, the proxy server is configured to emulate the access gateway and the AAA server. | 2010-03-18 |
20100067538 | METHOD AND SYSTEM FOR FRAME CLASSIFICATION - The present invention provides a method and a device for classifying data frames. The method is typically carried out by a communication device in a wireless network with quality of service capability. It comprises the step of comparing data in a frame to data in a plurality of classifier entries, wherein the order of comparison of the classifier entries with a frame is a function of a quality of service priority level, and the step of classifying a frame for which a match is found as a function of a parameter associated with the matching classifier entry. | 2010-03-18 |
20100067539 | Single Network Interface Circuit with Multiple-Ports and Method Thereof - The invention discloses a single network interface device with multi-ports, the network interface device supports two or more physical network transmission routes to transmit and receive data, and upload the received data into a host through a host interface or download the data waiting to be transmitted to network from the host through the host interface. Therefore, the present invention increases network communication speed and improves host interface bandwidth. | 2010-03-18 |
20100067540 | APPARATUS AND METHOD FOR PROCESSING IP PACKET FRAGMENTATION IN ROUTING SYSTEM USING NETWORK PROCESSOR - An apparatus and method for processing IP packet fragmentation in a routing system using a network processor includes an ingress network processor receiving a packet, and if the received packet is greater than MTU, fragmenting the packet rather than sending the packet to a control processor to fragment the packet. All packets are processed using a fragmentation-based packet-processing method as a result of packet encapsulation, which is caused for mobility support in an IPv4 router. In addition, all the packets are processed by micro-engines, a data plane processor, irrespective of whether fragmentation is to be performed. Accordingly, the same packet-processing rate can be supported to mobile nodes irrespective of mobility or packet size. | 2010-03-18 |
20100067541 | METHOD FOR RESERVING BANDWIDTH - Method for reserving bandwidth in a packet-oriented network, in which a packet-oriented communication link is set up between a plurality of network elements using at least one communication path. In this case, an identification number which is unique to the communication link and is intended to identify the communication paths associated with the communication link is allocated. A bandwidth value for a respective communication path is then determined as the maximum bandwidth required by network elements in this communication path, and bandwidth in the respective communication path is reserved using the bandwidth value. | 2010-03-18 |
20100067542 | METHOD FOR OPTIMISING THE SHARING OF A PLURALITY OF NETWORK RESOURCES BETWEEN A PLURALITY OF APPLICATION FLOWS - The invention relates to a method for optimising the sharing of a plurality of network resources between a plurality of data flows generated by a plurality of applications, said flows being able to take a number n of paths [ABi], i=1 to n, linking at least one site A and at least one site B in a telecommunications network ( | 2010-03-18 |
20100067543 | Method and an apparatus for data storage and communications - A method is disclosed of using a plurality of simultaneous communication sessions to allow two-way communication where data compositions are simultaneously sent from an apparatus to a large plurality of remote units, while maintaining a high performance of the apparatus, each session involving sending a data composition to a respective of a plurality of remote units through a communication network, the data compositions being stored in a storage unit. The method includes receiving from the storage unit streams of data composition sub-sets, and providing for each of the communication sessions a data queue, and storing data of the streams of data composition sub-sets in the data queues. | 2010-03-18 |
20100067544 | Multiuser Allocation Method for Maximizing Transmission Capacity - Disclosed is a method and computer-readable medium for bit and power allocation for modems sharing a common multi-carrier binder, including Discrete Multi-Tone (DMT) based Digital Subscriber Line (DSL) modems. In one preferred embodiment, the method includes the steps of initializing a modem by calculating loop-to-loop channel transfer functions and noise power spectral densities (PSDs) at a corresponding receiver, and taking into account cross-talk between loops in the process of allocation so as to maximize total data rates within the binder. | 2010-03-18 |
20100067545 | METHOD AND APPARATUS FOR HEADER COMPRESSION - A packet compressor | 2010-03-18 |
20100067546 | Method And Apparatus To Vary The Transmission Bit Rate Within Individual Wireless Packets Through Multi-Rate Packetization - A transceiver for wireless data transmission provides for variable bit rates within a packet (intra-packet rate changes) to provide a high-speed adaptation to variations in link quality useful for continuous mobility applications. Intra-packet rate variations may be obtained with standard hardware by remapping payload data to a subset of the hardware transmission constellation symbols. | 2010-03-18 |
20100067547 | Frame generating device - A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byte and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8+10n (“n” is zero or a given positive integer))×4 rows, the second fixed stuff byte being of a given byte×4 rows, the given byte being equal to zero or more and being equal to (24−10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte and the second fixed stuff byte. | 2010-03-18 |
20100067548 | DIGITAL BROADCASTING SYSTEM AND METHOD OF PROCESSING DATA IN DIGITAL BROADCASTING SYSTEM - A digital broadcasting system and a data processing method are disclosed. The receiving system of the digital broadcasting system includes a baseband processor, a first handler, a second handler, and a storage unit. The baseband processor receives a broadcast signal including mobile service data and main service data. Herein, the mobile service data may configure an RS frame, and the RS frame may include the mobile service data and first signaling information of a first data type on the mobile service data. The first handler parses the first signaling information received from the RS frame, converts parsed data elements of the first data type to a second data type, and merges multiple identification information of the parsed first data type, thereby generating identification information of the second data type. The second handler receives second signaling information of the second data type on the mobile service data, the second signaling information including at least one fragment, uses the identification information of the second data type included in the first handler to search at least one fragment within the second signaling information, and maps data elements received through the searched fragment with the data elements converted to the second data type. | 2010-03-18 |
20100067549 | Information Acquisition Device and Method - A device includes a storage unit that stores in a predetermined unit an identifier acquired from a packet transmitted from a transmitting device in association with a source address. The transmitting device receives from each terminal device connected communicatable via a network a packet including a source address, an identifier generated by adding a numerical value every time a packet is sent by the terminal device, and a session ID, and converts and transmits the source address. The transmitting device and the terminal device are connected to the device via a different network. The device also includes a determining unit that determines whether the identifier stored has monotonically increased; and a detector that detects a source indicated by a certain source address to be the transmitting device, if the determining unit determines that the identifier for the certain source address has not monotonically increased. | 2010-03-18 |
20100067550 | Code division multiplex signal transmitter and code division multiplexing method with amplifying circuits reduced in number - N channels of encoded data are added into added data, which is compared with a first threshold of 2 | 2010-03-18 |
20100067551 | Method for Providing Packet Framing in a DSSS Radio System - An improved method of framing data packets in a direct sequence spread spectrum (DSSS) system that uses one pseudo-noise code (PN-Code) to frame the packet with a start-of-packet (SOP) and end-of-packet (EOP) indicator, and a different PN-Code to encode the data payload. Furthermore, the SOP is represented by the framing PN-Code, and the EOP is represented by the inverse of the framing PN-Code. This method creates a robust framing system that enables a DSSS system to operate with a low threshold of detection, thus maximizing transmission range even in noisy environments. Additionally, the PN-Code used for the SOP and EOP indicators can be used to indicate an acknowledgement response. | 2010-03-18 |
20100067552 | METHOD AND DEVICE FOR IMPROVING CLOCK STABILITY - A method and device for improving clock stability are provided. The method includes: determining whether a difference between a current sender timestamp (ST) and a current receiver timestamp (RT) is a mutated value; pre-processing the ST and RT, if the difference between the ST and RT is a mutated value; acquiring a service clock according to the pre-processed ST and RT; and sending time division multiplex (TDM) data according to the service clock.. Through the embodiments of the present disclosure, a packet delay variance (PDV) may be smoothed, the impairment of the PDV on clock recovery may be reduced, the quality of the clock recovery may be improved, and the problem of clock synchronization may be solved through the mutation processing on the timestamps. | 2010-03-18 |
20100067553 | SYNCHRONIZATION OF VIDEO WITH TELEMETRY SIGNALS METHOD AND APPARATUS - An Ethernet-compatible synchronization process between isolated digital data streams assures synchronization by embedding an available time code from a first stream into data locations in a second stream that are known a priori to be unneeded. Successive bits of time code values, generated as a step in acquiring and digitizing analog sensor data, are inserted into least-significant-bit locations in a digitized audio stream generated along with digitized image data by a digital video process. The overwritten LSB locations are shown to have no discernable effect on audio reconstructed from the Ethernet packets. Telemetry recovery is the reverse of the embedment process, and the data streams are readily synchronized by numerical methods. | 2010-03-18 |
20100067554 | Fast wavelength tuning techniques for external cavity lasers - An apparatus comprising a laser source configured to emit a light beam along a first path, an optical beam steering component configured to steer the light beam from the first path to a second path at an angle to the first path, and a diffraction grating configured to reflect back at least a portion of the light beam along the second path, wherein the angle determines an external cavity length. Included is an apparatus comprising a laser source configured to emit a light beam along a first path, a beam steering component configured to redirect the light beam to a second path at an angle to the first path, wherein the optical beam steering component is configured to change the angle at a rate of at least about one Kilohertz, and a diffraction grating configured to reflect back at least a portion of the light beam along the second path. | 2010-03-18 |
20100067555 | TUNABLE OPTICAL SUPERCONTINUUM ENHANCEMENT - A method and apparatus for providing optical supercontinuum. The method comprises creating a spectrally narrow phase feature within a supercontinuum spectrum produced from a laser pulse that has been subjected to supercontinuum generation, thereby producing a modified supercontinuum spectrum, and propagating the modified supercontinuum spectrum through an optical waveguide that is suitable for supercontinuum generation, thereby further modifying the modified supercontinuum spectrum. The method may include modifying the modified supercontinuum spectrum by increasing its energy in a vicinity of the phase feature. | 2010-03-18 |
20100067556 | DIODE LASER BARS AND METHOD FOR THE PRODUCTION THEREOF - There is provided a method for the production of diode laser bars from a wafer, wherein a metal layer is applied to the wafer in such a way that it does not extend up to the later facets of the diode laser bars to be separated, the diode laser bars are separated and stacked one atop another, the metal layer producing a gap between the facets of the stacked diode laser bars and the metal layer being selected in such a way that clogging of the gap during coating of a facet is prevented. | 2010-03-18 |
20100067557 | HIGH-EFFICIENCY UNIPOLAR QUANTUM CASCADE LASER - The present invention pertains to a unipolar quantum cascade laser consisting of several semiconductor multilayer structures (C) that are layered behind one another between two electrodes in a periodic sequence such that an active area (A) and a transitional or injection area (B) respectively alternate. The active areas (A) respectively have at least one upper and one lower energy level for electrons, between which electron transitions (T) emitting light take place. The transitional or injection areas (B) are realized in such a way that they allow the electron transport from the lower energy level of the preceding active area referred to the transport direction into the upper energy level of the following active area referred to the transport direction. In this laser, the active areas (A) comprise at least one quaternary material layer as barrier layer and are realized in such a way that the highest and the second highest local maximum of the square of the quantum-mechanical wave function for the electrons in the upper energy level differ by less than 50%. | 2010-03-18 |
20100067558 | SEMICONDUCTOR LASER - A semiconductor laser having a high electrostatic withstand voltage, resistant to a power supply surge, and having improved long-term reliability is obtained by reducing current leakage through a threading dislocation portion. The semiconductor laser includes a substrate having a high dislocation region having a dislocation density of 1×10 | 2010-03-18 |
20100067559 | LASER DIODE DEVICE, OPTICAL APPARATUS AND DISPLAY APPARATUS - A laser diode device includes a first laser diode element, a second laser diode element and a third laser diode element having a longer lasing wavelength than the first and second 6 laser diode elements. The first, second and third laser diode elements are arranged in a package, and the third laser diode element is not electrically connected to the first and second laser diode elements. | 2010-03-18 |
20100067560 | DIAGNOSTIC APPARATUS FOR VEHICLE COOLING SYSTEM - When the driving wind and the cooling wind are generated, based on the phenomenon in which the temperature difference is generated between the front surface and the rear surface of the radiator ( | 2010-03-18 |
20100067561 | TEMPERATURE RECORDER - A temperature recorder in the form of a tubular cover and with an inside piston, in which an altered position of the piston is carried out by a mechanical movement released from a bimetal washer, which, when making a sudden change, changes its form from convex to concave when a determined temperature level is reached. Two line-formed screen patterns, a picture formed by coloured lines on the inner surface of the tubular cover, shows a certain pattern in the original position, and a different pattern is shown when an inside piston has been moved vertically inside the outer tubular cover. Friction between the outside of the piston and the inner surface of the tubular cover forms a braking means. A reset button can by means of a magnet or a spring repulse or press back the piston which is in the top of the tubular cover and has a magnet and the piston will be pressed back within the tubular cover to its original position and the first patterns will be shown clearly again by the line-formed screen pattern. The bimetal washer will assume its original form and is prepared to start again when the temperature is increased or decreased. | 2010-03-18 |
20100067562 | Temperature sensor mounting unit - According to an aspect of the present invention, there is provided a temperature sensor mounting unit for mounting a temperature sensor inside a mounting-target member through a mounting hole provided in a mounting wall, the temperature sensor mounting unit including: a base plate; elastic gripping pieces that extend from the base plate to grip the temperature sensor therebetween; elastic locking pieces formed on the base plate to be brought into engagement with the mounting hole; and a passage hole formed on the base plate to lead out a lead wire therethrough, wherein, in a mounted state, at least when an external force to expand the elastic gripping pieces is exerted, the elastic gripping pieces are brought into abutment with an inner circumference of the mounting hole so as to be prevented from expanding. | 2010-03-18 |
20100067563 | METHOD AND SYSTEM OF COMMUNICATIONS - A communications estimation, in radio communications systems, particularly in CDMA type of systems, of signal to interference ratio, signal to noise ratio and signal to interference and noise ratio, includes one or more channel specific parameters in addition to one or more parameters related to received signal, noise or interference. | 2010-03-18 |
20100067564 | Time Multiplexed Non-Coherent Multipath Search Method and Apparatus - An apparatus for performing a multipath search including a plurality of time-multiplexed chip correlators, wherein each of the plurality of time-multiplexed chip correlators has a pipeline, and further wherein each of the plurality of time-multiplexed chip correlators has a accumulation time is described. A method is described for performing a multipath search including performing multipath search slot processing, determining if a current multipath searching slot is a last multipath searching slot, if the current multipath searching slot is not the last multipath searching slot, then repeating the performing step, if the current multipath searching slot is the last multipath searching slot, then initializing a multipath searching slot index, determining if an non-coherent accumulation has been completed if the accumulation has not been completed then repeating all steps and if the accumulation has been completed, then search results are sorted to locate energy peaks corresponding to multipath locations. | 2010-03-18 |
20100067565 | METHODS FOR IN-BAND SIGNALING THROUGH ENHANCED VARIABLE-RATE CODECS - Improvements are disclosed for in-band signaling, i.e., transmission of data in a voice channel of a digital wireless network during a voice call session. A family of narrow-band signaling methods is disclosed to successfully pass data-carrying signals through the low-bit rate modes of the EVRC-B vocoder commonly used in CDMA wireless channels. Some embodiments generate a tapered signaling waveform in tandem with another waveform using FSK-modulation. These features can be used in cell phones or other wireless communication devices, including automotive applications. | 2010-03-18 |
20100067566 | COMMUNICATION DEVICES WITH INTEGRATED GYRATORS AND METHODS FOR USE THEREWITH - A device includes an on-chip gyrating circuit that generates a motion parameter based on motion of the device. An RF transceiver generates an outbound RF signal from an outbound symbol stream, transmits the outbound RF signal to a remote station of a wireless network, and generates an inbound symbol stream from an inbound RF signal received from the at least one remote station. A processing module is coupled to process the motion parameter to produce motion data, to convert outbound data into the outbound symbol stream, and to convert the inbound symbol stream into inbound data, wherein the outbound data includes the motion data. | 2010-03-18 |
20100067567 | Multiple High-Speed Bit Stream Interface Circuit - A high-speed bit stream interface module interfaces a high-speed communication media to a communication Application Specific Integrated Circuit (ASIC) via a Printed Circuit Board (PCB) or the communication ASIC to another communication ASIC. The high-speed bit stream interface includes a plurality of signal conditioning circuits. The signal conditioning circuits service each of an RX path and a TX path and include a limiting amplifier and a clock and data recovery circuit. The signal conditioning circuit may also include an equalizer and/or an output pre-emphasis circuit. The clock and data recovery circuit has an adjustable Phase Locked Loop (PLL) bandwidth that is set to correspond to a jitter bandwidth of a serviced high-speed bit stream. | 2010-03-18 |
20100067568 | SERVICE IN COMMUNICATION SYSTEMS - A method and apparatus for improving performance in communication systems is provided. In one implementation, initial encoded data that has been encoded with a rateless code is received. A quality metric is determined for a communication medium on which the initial encoded data has been received. A modulation scheme used in sending the initial encoded data on the communication medium is identified. An estimate is determined, based on the identified modulation scheme and the determined quality metric, of an amount of mutual information being received per unit of received encoded data. An amount of mutual information being received is determined, based on the determined estimate. | 2010-03-18 |
20100067569 | METHOD OF MONITORING CIRCUIT QUALITY AND CIRCUIT THEREFOR - In a digital wireless communication device having an error correction function, the circuit quality is quickly detected with maintained accuracy. The circuit quality to such an extent that a bit error rate (BER) is slightly degraded (10 | 2010-03-18 |
20100067570 | Method and Device for Detecting Simultaneous Double Transmission of AM Signals - A device that detects the presence of several amplitude-modulated high-frequency signals in a sum signal with closely-adjacent carrier frequencies. The sum signal is phase-demodulated by a phase demodulator and Fourier-transformed by a Fourier-transformation device. On the basis of the Fourier transform, the presence of several carrier frequencies is determined by an evaluation device. | 2010-03-18 |
20100067571 | Low latency high resolution video encoding - Video data that is associated with a videoconference or a telepresence session is captured and a video signal relating thereto is provided. The video signal is divided into segments, which are identical from one video frame to another subsequent video frame within the video signal. Each segment is encoded independently, to result in encoded segment data such that both I-frames and P-frames are generated for a given segment, so as to support independent reconstruction of segments at a distant end. The encoded segment data is transmitted subsequently to the distant end. | 2010-03-18 |
20100067572 | IMAGE PROCESSING DEVICE AND COMPUTER TERMINAL, AND SIGNAL SEPARATION METHOD - An image processing device a includes a determination unit configured to determine a correlation value between a decoded frame and a reference frame and the number of iterations indicating the number of times signal separation calculation based on a TV method is iteratively performed on the decoded frames, based on a result of a motion search process, a generation unit configured to generate, as an initial gradient signal value, a zero vector or a gradient signal value obtained based on a motion vector determined in the motion search process, according to the correlation value, and a separation unit configured to iteratively perform the signal separation calculation on the decoded frame the number of iterations, using the initial gradient signal value as an initial value, and separate the decoded frame into a skeleton image signal and a texture image signal. | 2010-03-18 |
20100067573 | Interface for Fast Pattern Projection - A method for projecting sequences of images from a standard digital source by packing the binary bit planes of an image is conveyed. The method enables 24× frame rates from a standard source using standard electrical interfaces. | 2010-03-18 |
20100067574 | VIDEO DECODING METHOD AND VIDEO ENCODING METHOD - The present invention prevents coding artifacts caused in applying image enhancement technologies to pictures that have been encoded and then decoded. A video decoder ( | 2010-03-18 |
20100067575 | DECODING METHOD, DECORDER AND DECODING APPARATUS - A decoding method generates a rectangular residual image by performing an inverse quantization and inverse frequency conversion processes based on coefficient data, a rectangular predicted image by reading a reference image based on motion vector data, and a decoded image by adding the residual image and the predicted image. The predicted images with respect to at least two or more rectangular regions are stored when generating the rectangular predicted image, and a predicted image ready signal notifies that the predicted image with respect to the at least two or more rectangular regions has been generated. The timings to store the coefficient data and the motion vector data are controlled in response to the predicted image ready signal. | 2010-03-18 |
20100067576 | Method and Apparatus to Prioritize Video Information During Coding and Decoding - A method and apparatus prioritizing video information during coding and decoding. Video information is received and an element of the video information, such as a visual object, video object layer, video object plane or keyregion, is identified. A priority is assigned to the identified element and the video information is encoded into a bitstream, such as a visual bitstream encoded using the MPEG-4 standard, including an indication of the priority of the element. The priority information can then be used when decoding the bitstream to reconstruct the video information | 2010-03-18 |
20100067577 | METHOD AND APPARATUS FOR MANIPULATING BIT STREAMS - Trans-rating of successive macroblocks in a video stream occurs in accordance with the block type. For example, an (Inter) Intra-coded macroblock will generally get trans-rated using first algorithm partly decodes the macroblock and modifies coded residual coefficients by raising coefficient quantization. Intra-coded macroblocks generally get trans-rated using a second technique that operates first to decode the macroblock and then derive all the main decisions therefrom to re-encode the stream using the original decisions. Separately trans-rating Inter-coded and Intra-coded macroblocks in this manner reduces computational complexity, as compared to the use of a single trans-rating algorithm, while still maintaining good video quality. | 2010-03-18 |
20100067578 | TRANSMITTING APPARATUS AND TRANSMISSION METHOD - If a loss of a RTP packet is detected, a RTT acquisition unit acquires time information corresponding to a period of time needed from transmission of data from a transmitting apparatus to reception of this data at a receiving apparatus. A QoS switching unit determines based on the time information whether moving image data is to be retransmitted that was transmitted from the transmitting apparatus but that has been lost without being received by the receiving apparatus or moving image data located in playback time sequence after the lost moving image data is to be encoded without referring to the lost moving image data and the resultant encoded moving image data is to be transmitted. | 2010-03-18 |
20100067579 | VIDEO ENCODING METHOD AND DECODING METHOD, APPARATUSES THEREFOR, PROGRAMS THEREFOR, AND STORAGE MEDIA FOR RECORDING THE PROGRAMS - A video encoding method, in which a video signal consisting of two or more signal elements is targeted to be encoded, includes a step of setting a downsampling ratio is set for a specific signal element in a frame, in accordance with the characteristics in the frame; and a step of generating a target video signal to be encoded, by subjecting the specific signal element in the frame to downsampling in accordance with the set downsampling ratio. The frame may be divided into partial areas in accordance with localized characteristics in the frame; and a downsampling ratio for a specific signal element in these partial areas may be set in accordance with the characteristics in each partial area. | 2010-03-18 |
20100067580 | NON-SCALABLE TO SCALABLE VIDEO CONVERTER - Systems and methods are for implementing a NSV2SV converter that converts a non-scalable video signal to a scalable video signal. In an implementation, a non-scalable video signal encoded in H.264/AVC standard is decoded and segmented into spatial data and motion data. The spatial data is resized into a desired resolution by down-sampling the spatial data. The motion data is also resized in every layer, except in the top layer, of a scalable video coding (SVC) encoder by using an appropriate measure. Further, the motion data is refined based on the resized spatial data in every layer of the SVC encoder. The refined motion data and the down-sampled spatial data are then transformed and entropy encoded in the SVC standard in every layer. The SVC encoded output from every layer is multiplexed to produce a scalable video signal. | 2010-03-18 |
20100067581 | SYSTEM AND METHOD FOR SCALABLE VIDEO CODING USING TELESCOPIC MODE FLAGS - Systems and methods for scalable video coding using special inter-layer prediction modes (called telescopic modes) are provided. These modes facilitate accelerated operation of encoders with improved coding efficiency. | 2010-03-18 |
20100067582 | Image Encoding or Decoding Method and Device, with Parallelization of Processing Over Several Processors and Coprocessors, Corresponding Computer-Readable Storage Medium - A method is proposed for encoding/decoding an image having rectangular blocks of pixels. The image has a height of H blocks and a width of W blocks and is divided into vertical (or horizontal) bands of blocks having the height of H (or width of W) blocks. The method includes: obtaining N processors and M coprocessors, the M coprocessors distributed over S levels, N>1, S>0 and M>S; assigning the N processors P | 2010-03-18 |
20100067583 | SERVICE SYSTEM OF THUMBNAIL IMAGE AND TRANSMITTING/RECEIVING METHOD THEREOF - The present invention provides a service system of a thumbnail image and transmitting/receiving method thereof, by which a thumbnail image service of high quality of service and various application services can be provided to a user and by which a broadcasting station or thumbnail image service provider produces to transmit the thumbnail image to reduce a price of a broadcast receiver. The present invention includes a transmitting unit generating at least one thumbnail image for a specific program to transfer on a transport channel and a receiving unit demodulating the transferred at least one thumbnail image to display or store. | 2010-03-18 |
20100067584 | VIDEO PROCESSING METHOD AND APPARATUS, VIDEO PROCESSING PROGRAM, AND STORAGE MEDIUM WHICH STORES THE PROGRAM - A video processing method includes dividing a processing target image, which forms a video image, into a plurality of divided areas; determining a bandwidth applied to the divided areas; computing a filter coefficient array for implementing frequency characteristics corresponding to a band limitation using the bandwidth; subjecting the image data to a filtering process using the filter coefficient array; deriving a value of error information between the obtained data and the original image data, and computing an allocation coefficient used for determining an optimum bandwidth, based on the derived value; determining, for each divided area, the optimum bandwidth corresponding to the allocation coefficient, and computing an optimum filter coefficient array for implementing the frequency characteristics corresponding to a band limitation using the optimum bandwidth; subjecting the image data of the divided area to a filtering process using the optimum filter coefficient array; and synthesizing the obtained data of each divided area. | 2010-03-18 |
20100067585 | A WIRELESS COMMUNICATION APPARATUS AND THE CONFIGURATION METHOD THEREOF - A wireless communication apparatus and the configuration method thereof are provided. The wireless communication apparatus includes: a baseband module for processing the baseband signal, which is located in a host device of the wireless communication apparatus; and a radio frequency (RF) module for receiving the RF signal according to the RF band and the spectrum mask and conducting signal transmission with the baseband module, which is replaceably connected to the host device. By detaching the RF module from the host device and providing the interface between the RF module and the baseband module of the host device, the wireless communication, apparatus can realize the wireless access by selecting the replaceable RF module according to the use requirement, and the application flexibility of the communication terminal is enhanced and the weight and bulk of the host device is reduced. | 2010-03-18 |
20100067586 | Method and Apparatus for Transmitting Data With Reduced Coupling Noise - A first integrated circuit is coupled to a first connector. A second connector is coupled to the first connector through multiple conductors, in which alternating pairs of conductors are reversed. A second integrated circuit is coupled to the second connector through a second group of conductors. The first integrated circuit includes multiple differential drivers and the second integrated circuit includes multiple differential receivers. The inductive coupling coefficient of the first device is modified to be substantially the same as the inductive coupling coefficient of the second device. | 2010-03-18 |
20100067587 | ADAPTIVE PULSE DETECTION FOR ALL-DIGITAL LINE-OF-SIGHT (LOS) PROCESSOR - An all-digital line-of-sight (LOS) process architecture addresses the size, weight, power and performance constraints of a receiver for use in semi-active or active pulsed electromagnetic (EM) targeting systems. The all-digital architecture provides a platform for enhanced techniques for sensitive pulse detection over a wide field-of-view, adaptive pulse detection, LOS processing and counter measures. | 2010-03-18 |
20100067588 | Wireless Communication Apparatus, Antenna Calibration Method, and Computer Program - Reversibility in the directivity in the event of transmission/reception through a multi-antenna system is well suitably compensated for by executing self-calibration. A branch is set to a reference branch, and a forward loopback transfer function and a backward loopback transfer function are acquired, whereby per-branch calibration factors are calculated. Subsequently, an other branch is set to a reference branch, and calibration factors are calculated in a similar manner. Then, the calibration factor for the reference branch is corrected in accordance with the secondly obtained calibration factor so that a calibration condition is satisfied. | 2010-03-18 |
20100067589 | METHOD AND APPARATUS FOR OPTIMIZING DOWNLINK TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for optimizing downlink transmission in a wireless communication network ( | 2010-03-18 |
20100067590 | ADAPTIVE PILOT INSERTION FOR A MIMO-OFDM SYSTEM - A transmitting entity transmits a “base” pilot in each protocol data unit (PDU). A receiving entity is able to derive a sufficiently accurate channel response estimate of a MIMO channel with the base pilot under nominal (or most) channel conditions. The transmitting entity selectively transmits an additional pilot if and as needed, e.g., based on channel conditions and/or other factors. The additional pilot may be adaptively inserted in almost any symbol period in the PDU. The receiving entity is able to derive an improved channel response estimate with the additional pilot. The transmitting entity sends signaling to indicate that additional pilot is being sent. This signaling may be embedded within pilot symbols sent on a set of pilot subbands used for a carrier pilot that is transmitted across most of the PDU. The signaling indicates whether additional pilot is being sent and possibly other pertinent information. | 2010-03-18 |
20100067591 | EFFICIENTLY IDENTIFYING SYSTEM WAVEFORM IN UPLINK TRANSMISSION - Systems and methodologies are described that facilitate indicating a type of waveform utilized for uplink transmission in a wireless communication environment. An access terminal can select a type of waveform from a set of possible waveform types. Moreover, a reference signal can be generated based upon the selected type of waveform. For instance, a sequence employed to yield the reference signal can be generated and/or chosen as a function of the selected type of waveform. According to another illustration, a tone location and/or a symbol location of the reference signal can be based upon the selected type of waveform. Further, the reference signal can be sent as part of the uplink transmission to the base station from the access terminal. The base station can detect the selected type of waveform utilized by the access terminal for the uplink transmission based upon parameter(s) recognized from the reference signal. | 2010-03-18 |
20100067592 | OFDMA-BASED OPERATION OF A WIRELESS SUBSCRIBER TERMINAL IN A PLURALITY OF CELLS - A method for carrying out concurrent communications between a subscriber device and two base stations is disclosed. At least one OFDM/OFDMA sub-channel is selected for each of the two base stations which is associated with a communications sector belonging to one of the two base stations and comprises OFDM/OFDMA sub-carriers that are substantially different from sub-carries comprised in the OFDM/OFDMA sub-channel associated with a communications sector belonging to the other base station; establishing a communication path between the subscriber device and each of the two base stations along the respective sub-channel selected; receiving/transmitting control messages exchanged between the subscriber device and the two base stations, wherein at least one control message is exchanged between the subscriber device and one of the two base stations concurrently with at least one control message exchanged between the subscriber device and the other base station, and wherein the control messages are exchanged along different sub-channels comprised in the communication paths. | 2010-03-18 |
20100067593 | Method and Apparatus for Transmitting and Receiving Control Information in a Wireless Communication System - A base station transmits control information to a mobile station. A first control channel is transmitted to the mobile station. The first control channel contains an indication of the number of control channel occurrences in a frame. A second control channel is transmitted to the mobile station in a control subframe. The second control channel contains information for communicating a packet between the base station and the mobile station. The control subframe is determined from the number of control channel occurrences in the frame. The packet can then be communicated between the base station and the mobile station in a subframe based on the control channels transmitted. | 2010-03-18 |
20100067594 | Codebook generation system and associated methods - A codebook generation system and associated methods are generally described herein. | 2010-03-18 |
20100067595 | Wi-Fi, GPS and MIMO Systems - Video and data cross-correlated in-phase and quadrature-phase processed and filtered baseband signals and location finder signals are quadrature modulated and transmitted in systems having two or more than two antennas. Signals used in Wi-Fi networks using Orthogonal Frequency Division Multiplexed (OFDM) modulated signals are also transmitted in the two or more than two antenna transmit system. Data and OFDM signal is used in a Voice over Internet Protocol (VoIP) or Video over Internet Protocol (ViIP) network and video cross-correlated modulated signal is used in ViIP wireless networks and in cellular systems. | 2010-03-18 |
20100067596 | METHODS AND SYSTEMS FOR HYBRID MIMO DECODING - Certain embodiments of the present disclosure allow a receiver to utilize both a minimum mean square error (MMSE) detection algorithm and a maximum likelihood (ML) detection algorithm. The receiver may control, based on various conditions, a mode selection signal to select between output generated with the MMSE detection algorithm and the ML detection algorithm. By sharing logical components, certain embodiments may allow a receiver to implement both ML and MMSE detection algorithms with minimal computational overhead when compared to implementing a single one of the decoding algorithms. | 2010-03-18 |
20100067597 | METHODS AND SYSTEMS FOR MAXIMUM-LIKELIHOOD DETECTION USING POST-SQUARING COMPENSATION - A “post-squaring” detection algorithm, and related devices, that may reduce the complexity of maximum likelihood detection (MLD) schemes while preserving their performance is provided. Rather than search for optimum metrics (such as minimum distance metrics) based on squared norm values, a search may be based on un-squared norm metrics, and the squaring may be postponed, for example, until subsequent log-likelihood ratio (LLR) computation. For certain embodiments, approximations of un-squared norm values may significantly reduce computation complexity. | 2010-03-18 |
20100067598 | Method and System for LLR Buffer Reduction in a Wireless Communication Modem - A system involves a transmitting device (for example, a first wireless communication device) and a receiving device (for example, a second wireless communication device). In the receiving device, LLR (Log-Likelihood Ratio) values are stored into an LLR buffer. LLR bit width is adjusted as a function of packet size of an incoming transmission to reduce the LLR buffer size required and/or to prevent LLR buffer capacity from being exceeded. The receiver may use a higher performance demodulator in order to maintain performance despite smaller LLR bit width. In the transmitting device, encoder code rate is adjusted as a function of receiver LLR buffer capacity and packet size of the outgoing transmission such that receiver LLR buffer capacity is not exceeded. Any combination of receiver LLR bit width adjustment, demodulator selection, and encoder code rate adjustment can be practiced to reduce LLR buffer size required while maintaining performance. | 2010-03-18 |
20100067599 | MIMO PREAMBLE FOR INITIAL ACCESS WITH AN UNKNOWN NUMBER OF TRANSMIT ANTENNAS - For certain embodiments, a preamble sequence associated with a particular number of transmit antennas may allow a receiving mobile station to determine the number of transmit antennas used for transmission. The preamble sequence may be selected from one of a set of Constant Amplitude and Zero Auto Correlation (CAZAC) sequences corresponding to all of the supported number of transmit antennas. As a result, a receiving station may be able to determine the sequence sent by correlation and, thereby determine the number of antennas used for transmission. Given the number of transmit antennas, the mobile station may then perform MIMO channel estimation during initial synchronization to recover the channel taps between each transmit and each receive antenna. | 2010-03-18 |
20100067600 | MMSE MIMO DECODER USING QR DECOMPOSITION - Aspects of the disclosure provide unbiased channel equalization applied in a MIMO OFDM system with spatial multiplexing. According to certain embodiments, a MMSE receiver can be implemented with the QR decomposition (QRMMSE detection) instead of direct inversion of channel matrix by exploiting an augmented channel matrix. A simple and efficient bias removal technique is presented herein, whereby unbiased QRMMSE equalization may provide identical detection accuracy as a conventional unbiased MMSE approach. For certain embodiments, multiple access interference may be further reduced if the VBLAST version of the unbiased QRMMSE detection is applied. | 2010-03-18 |
20100067601 | REDUCTION OF OVERHEAD IN A MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SYSTEM - A multi-access multiple-input multiple-output (MIMO) system comprises a base station (BS) and a number of user equipment (UE), N, for serving N users. The BS divides the N users into L mobility groups, where each mobility group is associated with a certain range of channel dynamics. Those mobility groups having lower channel dynamics—that is, the channel dynamics change less rapidly—are updated with beamforming information less frequently than those mobility groups having higher dynamics—that is, the channel dynamics change more rapidly. | 2010-03-18 |
20100067602 | COMMUNICATION RECEIVER WITH MULTIPLEXING OF RECEIVED SIGNAL, FOR RECEIVE SPACE DIVERSITY - A communication receiver implements receive space diversity to combine or select signals received from a same source on at least two spatially separated antennas in which the signals may vary in their fading characteristics at a given time. The receiver includes a RF processing module for down-converting and multiplexing the signals and a baseband processing module for converting the signals into digital signals, generating code sequences, producing despreaded and demultiplexed in-phase signals, and retrieving data initially contained within the received signals. | 2010-03-18 |
20100067603 | Radio Communication Systems And Transmitting Method - A radio transmitter includes a signal generating unit that generates first and second OFDM (Orthogonal Frequency-Division Multiplexing) signals carrying the same information, and a phase shifter that controls a phase of the second OFDM signal based on a spectrum of a composite signal of the first and second OFDM signals. | 2010-03-18 |
20100067604 | NETWORK MULTIPLE ANTENNA TRANSMISSION EMPLOYING AN X2 INTERFACE - A coordinated multipoint transmitter is for use with a multiple antenna super-cell and includes primary and secondary base stations jointly connected via an X2 interface link, wherein the primary base station provides a transmission directive corresponding to an X2 interface protocol over the X2 interface link to the secondary base station for a joint transmission from the primary and secondary base stations. | 2010-03-18 |
20100067605 | Method and Arrangement for Adapting a Multi-Antenna Transmission - A method in a first node for adapting a multi-antenna transmission to a second node over a wireless channel is provided. The wireless channel has at least three inputs and at least one output. The first node and the second node are comprised in a wireless communication system. The method comprising the steps of: Obtaining ( | 2010-03-18 |