24th week of 2009 patent applcation highlights part 30 |
Patent application number | Title | Published |
20090147775 | Ancillary data support in session initiation protocol (SIP) messaging - A SIP ancillary data server provides host to auxiliary data for an emergency SIP session (call) uniquely referred to in a transported SIP header. In a manner similar to how location is represented in an emergency call, a SIP header is extended. The extended SIP Header contains one of two possible types of content elements: either (a) a content pointer element to a SIP Message body part (a “cid:”, or content identifier); or (b) an (a.k.a, “info_URI” in this document). | 2009-06-11 |
20090147776 | Integrated switch and switching method for simultaneously processing voice and IP data in the same channel - Provided are an integrated switch and a switching method for simultaneously processing IP data and voice signals using silent periods during communication. The integrated switch provides a function of transmitting data packets using the silent periods during the communication of an existing switch subscriber, so that an existing frequency band and apparatus can be used without use of a separate frequency band and a separate apparatus for data transmission such as an existing asymmetric digital subscriber line (ADSL). In addition, efficiency of an existing switch can be increased without use of an apparatus for collecting and processing data provided in front of subscriber line cards. | 2009-06-11 |
20090147777 | Reverse Notification Tree for Data Networks - Recovery time upon the failure of a link or switching system in an asynchronous data network can be minimized if downstream data switches provide upstream messages indicating to upstream switching system that the downstream traffic arrived in tact and was properly handled. Upon this loss or failure of the upstream status message to an upstream switching system, an upstream switching system can reroute data traffic around a failed link or failed switch with a minimal amount of lost data. The upstream status message is conveyed from a downstream switching system to an upstream switching system via a reverse notification tree data pathway. | 2009-06-11 |
20090147778 | METHOD AND SYSTEM FOR TARGETED ADVERTISING IN A COMMUNICATION SYSTEM FOR MEDIATING VOICE AND TEXT COMMUNICATIONS - A method and system for targeted advertising in a communication system for connecting voice calls is provided. In accordance one embodiment of the present disclosure, there is provided a method for targeted advertising in a communication system for connecting a voice call, the method comprising: receiving a request to connect a voice call between a first communication device and a second communication device identified by a contact identifier; establishing a voice connection between the first communication device and a Voice over Internet Protocol (VoIP) gateway; transmitting a first audio advertisement over the voice connection between the first communication device and the VoIP gateway to be played on the first communication device; establishing a voice connection between the second communication device and the VoIP gateway; and connecting the voice call between the first communication device and the second communication device. | 2009-06-11 |
20090147779 | METHODS, IPTV (INTERNET PROTOCOL TELEVISION) TERMINAL, AND IPTV CONTROL SERVER FOR IPTV BANDWIDTH MANAGEMENT - An IP Television (IPTV) terminal, an IPTV control server, and methods for used therein are provided for delegating the service admission control from the network to the terminals. As an IPTV terminal initiates a new IPTV service (e.g. linear TV, Video-on-Demand), a bandwidth balance available for use by IPTV terminals of the given IPTV subscription is verified locally, and if sufficient bandwidth is found, then the service is allowed and started. The terminal then informs the IPTV control server of the service initiation and a new bandwidth balance is obtained by the server, and sent to all IPTV terminals for the subscription. Next time a new service is initiated by any of the IPTV terminals of the given subscription, that new bandwidth balance is used locally by the terminals, to determine if sufficient bandwidth remains available for using the new service, thus allowing or inhibiting initiation of the service. | 2009-06-11 |
20090147780 | Priority-Based Data Message Publishing Method and System According to a Data Message Chain - A priority-based data message publishing method according to a data message chain can be implemented by receiving a data message, wherein the data message has an original priority. Then, judge whether there is a corresponding data message chain corresponding to the data message. When there is a corresponding data message chain, add the data message to the back of the corresponding data message chain to obtain a revised data message chain. When there is no corresponding data message chain the data message, add a new data message chain, and add the data message to the back of the new data message chain to obtain a revised data message chain. Next, rule-operate the revised data message chain to obtain a dynamic priority of the data message. Replace the original priority with the dynamic priority to obtain a revised data message. Publish the revised data message according to the dynamic priority. | 2009-06-11 |
20090147781 | METHOD AND APPARATUS OF MULTICAST SERVICE FLOW PROCESSING FOR HEADEND CABLE MODEM - A method and apparatus of processing a multicast service flow for a headend cable modem is provided. | 2009-06-11 |
20090147782 | ELECTRONIC DEVICE FOR COMMUNICATION WITHIN A NETWORK AND METHOD FOR OPERATING AN ELECTRONIC DEVICE - The present invention relates to an electronic device for communication within a network, comprising a first interface ( | 2009-06-11 |
20090147783 | Buffering architecture for packet injection and extraction in on-chip networks - This method for transferring data through a network on chip (NoC) between a first electronic device and a second electronic device, comprising:
| 2009-06-11 |
20090147784 | Field network system - A field network system is provided. The field network system includes a plurality of field devices and a plurality of tunneling units. The field devices are coupled to each other through an IP network. The IP network is divided into a plurality of subnetworks. Each of the tunneling units is provided in each of the subnetworks to conduct tunneling communication. | 2009-06-11 |
20090147785 | Separability control device, tree-type delivery system, node device separation control method, memory medium memorizing separability control program, memory medium memorizing information process program - A separability control device formed by connecting plural node devices in a tree-like shape while forming plural hierarchy levels placing a delivery device at a top to enable content data from the delivery device to be sequentially transferred from the node device on an upper hierarchy level to the node device on an lower hierarchy level, including:
| 2009-06-11 |
20090147786 | MULTICAST SERVICE PROCESSING METHOD AND ACCESS EQUIPMENT - A multicast service processing method and access equipment are disclosed. The method includes: receiving multicast program request message from terminal device, inquiring about program rating parameters according to said multicast program request message, wherein the program rating parameter includes multicast group IP address and multicast program rated priority, generating multicast program data according to the program rating parameters, sending the multicast program data to the terminal device. | 2009-06-11 |
20090147787 | METHOD AND APPARATUS FOR RTP EGRESS STREAMING USING COMPLEMENTARY DIRECTING FILE - A hardware accelerated streaming arrangement, especially for RTP real time protocol streaming, employs a directing file determining the pointers, header lengths and offsets of a block of one or more data packets to be sent out through a network accelerated streaming system. The directing file is established by a control processor, for example working in the background, and is stored to provide information making it possible to determine certain information including header sizes and pointers to RTP payload and other data, without the need during egress of the data for analysis related to the type of media or protocol concerned. This relieves the control processor of functions that would otherwise require attention, and permits the egress process to proceed in a repetitive manner, preferably relying insofar as possible on hardware elements for speed and reserving the control processors computational capacity for control functions that may be more complex but are infrequent and/or not time sensitive for streaming in real time. | 2009-06-11 |
20090147788 | METHOD AND APPARATUS OF DOWNSTREAM SERVICE FLOWS CLASSIFICATION FOR HEADEND CABLE MODEM - A method and apparatus of classifying downstream service flows for a cable modem is provided. A method of classifying downstream service flows, the method including: classifying a service flow based on a Quality of Service (QoS) using a destination address of an inputted packet; composing an internal header including corresponding service flow information based on the classifying of the service flow; and adding the internal header to the inputted packet. | 2009-06-11 |
20090147789 | NETWORK ELEMENT APPARATUS AND INTERMEDIATE ROUTER APPARATUS - As an apparatus itself moves, its access section gets access to a router using a temporarily assigned global address when making a roaming connection to a different network from a network to which the apparatus belongs currently. A message generating section generates a binding update message, which contains a global address which is uniquely assigned to a network element apparatus, the above temporarily assigned global address, and a global address of the router, to transmit the generated message via the access section to a router, which is a serving router after move. This makes it possible to deliver packets among moving networks with the minimum delay to an intended recipient. | 2009-06-11 |
20090147790 | PACKET TRANSMISSION SCHEDULING METHOD IN WIRELESS NETWORK AND PACKET TRANSMISSION METHOD USING THE SAME - Provided are a packet transmission scheduling method in a wireless network and a packet transmission method using the same. The packet transmission scheduling method, includes storing location information and a path loss exponent of each node on a multiplexing path; calculating a Signal-to-Interference and Noise Ratio (SINR) between nodes on a predetermined path based on the stored location information; when the calculated SINR exceeds a threshold, forming the paths as a path table; and scheduling packet transmission based on the formed path table. | 2009-06-11 |
20090147791 | IP NETWORK SERVICE QUALITY MANAGEMENT BY DISTRIBUTED ADMISSION CONTROL BASED ON A SIGNALLING PROTOCOL - Procedure and device for managing the quality of service hop-by-hop in a packet-based communications network comprising several arteries linked together by a router, the network supporting a signalling protocol. The procedure comprises at least at each router a step of reserving the resources on the arteries gradually and a step ensuring once the communication has been established that the packets of one and the same connection follow the path between the sending source and the destination on which the resources have been reserved. | 2009-06-11 |
20090147792 | SYSTEMS, METHODS AND COMPUTER PROGRAM PRODUCTS FOR MANAGING QUALITY OF SERVICE, SESSION AUTHENTICATION AND/OR BANDWIDTH ALLOCATION IN A REGIONAL/ACCESS NETWORK (RAN) - Quality of Service (QoS) and/or bandwidth allocation is managed in a Regional/Access Network (RAN) that provides end-to-end transport between a Network Service Provider (NSP) and/or an Application Service Provider (ASP), and a Customer Premises Network (CPN) that includes a Routing Gateway (RG). A first subsystem is configured to manage QoS and/or bandwidth allocation for an access session in the CPN. A second subsystem is configured to manage QoS and/or bandwidth allocation for an application flow in the CPN. Thus, the RAN can independently manage QoS, session authentication and/or bandwidth allocation for an access session and for an application flow. | 2009-06-11 |
20090147793 | PACKET COMMUNICATION NETWORK AND PACKET COMMUNICATION METHOD - A packet communication network is connected between a first external network and a second external network. The packet communication network includes a classifier, a parallel network that includes a plurality of physically or logically independent networks, and a multiplexing router. The classifier classifies a packet input from the first external network to one of the networks in the parallel network. Each of the networks in the parallel network transmits the packet to the multiplexing router. The multiplexing router multiplexes a packet received from the networks in the parallel network and outputs the multiplexed packet to the second external network. | 2009-06-11 |
20090147794 | METHOD AND SYSTEM FOR SERVING MULTI-MEDIA DATA BETWEEN HETERO UPnP NETWORKS - Provided is a method and system for streaming multimedia data between hetero UPnP networks configured of a private network. The method comprises establishing a communication channel with a relay peer; establishing a virtual communication channel with a specific extensible home connector selected from a plurality of extensible home connectors connected with the relay peer; searching multimedia data to play from multimedia data in the specific extensible home connector which exists on the UPnP network through the virtual communication channel; establishing a communication environment through the UPnP internet gateway of the specific extensible home connector in case of demanding play of the searched multimedia data; and receiving multimedia data from the specific extensible home connector through the communication environment. | 2009-06-11 |
20090147795 | TCP Traversal Through Network Address Translators (NATS) - A network address translator (NAT) can be provided as part of a gateway between a private network and a public network. In situations where an entity in a private network requires establishment of a TCP connection to another entity in a separate private network, it is often the case that two NATs must be traversed one for each private network. In addition, these NATs may have associated one-way firewalls which block unsolicited incoming connections but allow outgoing connections. In this type of situation it is difficult to establish a TCP connection directly between the two entities in a simple and effective manner. We describe a method for achieving this which makes use of a redirection server in the public network to establish the connection but not to carry traffic during the communication session. We exploit features of the TCP simultaneous open process to establish a TCP connection directly between the entities. | 2009-06-11 |
20090147796 | Input/output buffer controller for optimized memory utilization and prevention of packet under-run errors - To avoid under-run conditions that result in corrupt packets at I/O interfaces, a FIFO buffer controller monitors key aspects of the contents of FIFO buffers of I/O interfaces. The FIFO buffer controller initiates transmission of data from the FIFO buffer when at least one complete packet is stored in the FIFO buffer or when the size of a partial packet stored therein is large enough so that the remainder of the packet would normally be received by the FIFO buffer before the stored part can be transmitted from the FIFO buffer; thereby avoiding an under-run error condition. | 2009-06-11 |
20090147797 | APPARATUS AND METHODS USING A LINEAR MEMORY MODEL FOR ENCODER OUTPUT BUFFERS - Apparatus and methods for using a linear memory model for encoder output buffering are disclosed. The apparatus and method effect linear memory output buffering by dividing an encoder operation having N sequential frames to be encoded by an encoder into N encoder operations each designated for a single frame transmission, such as in the case of extended frame transmissions having multiple frames. Bits of the N encoder operations are then sequentially buffered in an encoder output buffer, wherein bits of each buffered encoder operation of the N encoder operations are read out of the buffer to a multiplexer engine while bits of a next encoder operation of the N encoder operations is being stored in the encoder output buffer. | 2009-06-11 |
20090147798 | METHOD AND APPARATUS FOR DISASSOCIATION OF WIRELESS STATION IN A WIRELESS NETWORK - A wireless network ( | 2009-06-11 |
20090147799 | CIRCUIT AND METHOD FOR TRANSMITTING DATA STREAM - A circuit including a first data selection circuit and a second data selection circuit for transmitting a data stream is provided. The first data selection circuit having first controllable channels turns on a first operating channel being one of the first controllable channels in an odd-numbered period and turns off the first controllable channels in an even-numbered period adjacent to the odd-numbered period for transmitting a first bit datum of the data stream. The second data selection circuit having second controllable channels turns off the second controllable channels in the odd-numbered period and turns on a second operating channel being one of the second controllable channels in the even-numbered period for transmitting a second bit datum of the data stream. | 2009-06-11 |
20090147800 | Transmitting Apparatus and Transmission Rate Control Method - A wireless communication apparatus ( | 2009-06-11 |
20090147801 | Communication control method, communication apparatus, and communication system - Disclosed herein is a communication control method employed by a communication apparatus that includes a primary communication interface and a plurality of relay communication interfaces and has a communication interface coupling function of transferring a transmission/reception frame of the primary communication interface through one of the plurality of relay communication interfaces. The method includes the steps of: acquiring traffic information concerning the primary communication interface; and dynamically varying a transfer allocation ratio between the plurality of relay communication interfaces based on the traffic information. | 2009-06-11 |
20090147802 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SELECTED INTERLACE ACKNOWLEDGEMENT MESSAGES IN WIRELESS COMMUNICATION SYSTEMS - An apparatus and method of acknowledging transition to SelectedInterlacesOff state in a wireless communication system are described. A SelectedInterlaceAck message comprising an 8 bit MessageID field, a 12 bit PilotPN field wherein the PilotPN field is set to the PilotPN of the sector to which the message is directed, an 1 bit SelectedInterlaceEnabled field wherein the SelectedInterlaceEnabled field is set to “1” to indicate selected interlace mode enabled and to “0” otherwise and a 3 bit Reserved field wherein the Reserved field is of such length so that the entire message is octet-aligned and is set to “0” is generated and transmitted over a communication link. | 2009-06-11 |
20090147803 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND PROGRAM - A communication apparatus capable of using near field communication from various protocols, a communication method for use therewith, and a program for use therewith are provided. NFC communication apparatuses | 2009-06-11 |
20090147804 | Header compress/decompress framework - Machine-readable media, methods, and apparatus are described. In some embodiments, a header policy for a packet to be transmitted through the network is defined based upon characteristics of the network and a header of the packet is compressed based upon whether the header policy indicates the header of the packet is to be compressed. | 2009-06-11 |
20090147805 | MULTIPLEXING CIRCUIT AND DESIGNING METHOD THEREFOR - The present invention includes two or more bandpass filters, for passing signals of mutually different frequency bands therethrough, including one or more stages of units having coupling devices and resonance circuits coupled, in a tap type, to the coupling device, one end of each bandpass filter is directly connected to a common port, the coupling device and the resonance circuit of the first stage nearest to the port of each bandpass filter has a function of impedance matching means for each bandpass filter, in addition to a function of resonance means, respectively. | 2009-06-11 |
20090147806 | SYNCHRONIZATION OF NETWORK NODES - A method and apparatus are provided to achieve frequency synchronization between a first clock at a first node and a second clock at a second node of a packet-carrying communications network. At the first node: a property of packet transmission through the network between the first node and the second node is measured; and the measurement of the property is sent to the second node. At the second node, the same property of packet transmission through the network between the first node and the second node is measured. The measurement of the property made at the first node and the measurement of the property made at the second node are used to synchronize the frequency of the second clock with respect to the first clock. | 2009-06-11 |
20090147807 | Fiber grating laser - A fiber (Bragg) laser comprising a fiber with a cladding and a core having a (Bragg) grating inscribed in the core forming a laser cavity. | 2009-06-11 |
20090147808 | METHOD AND SYSTEM FOR TUNABLE PULSED LASER SOURCE - A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator. | 2009-06-11 |
20090147809 | Semiconductor laser drive system and semiconductor laser driving method - A semiconductor laser drive system and a semiconductor laser driving method where both internal noise and optical feedback noise can be simultaneously reduced are provided at low cost and low power consumption. | 2009-06-11 |
20090147810 | Method for controlling a temperature of a thermo-electric cooler and a temperature controller using the same - The present invention is to provide a control algorithm of a thermo-electric cooler (TEC) for a laser diode (LD) where a rush current accompanied with the stepwise change of the target temperature of the TEC. First, the controller stops the TEC driver prior to the setting of the target temperature, and sets the present temperature of the LD. Subsequently, the controller gradually increases the reference temperature of the TEC in stepwise to the target temperature. Thus, the controller suppresses the rush current accompanied with the instantaneous increase of the reference temperature of the TEC. | 2009-06-11 |
20090147811 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, LASER LIGHT SOURCE DEVICE AND TWO-DIMENSIONAL IMAGE DISPLAY DEVICE ADOPTING THE SAME, AND METHOD OF SETTING TEMPERATURE OF WAVELENGTH CONVERSION ELEMENT - A wavelength conversion laser light source includes: an element temperature switching section that switches a temperature of the wavelength conversion element according to a harmonic wave output value as set in an output setting device, and the element temperature switching section for switching a temperature of a wavelength conversion element according to a harmonic wave output level as set in the output setting device, wherein the element temperature switch section includes an element temperature holding section that holds the wavelength conversion element at the temperature as switched by the element temperature switching section. | 2009-06-11 |
20090147812 | HETEROSTRUCTURE, INJECTOR LASER, SEMICONDUCTOR AMPLIFYING ELEMENT AND A SEMICONDUCTOR OPTICAL AMPLIFIER A FINAL STAGE - The heterostructures are used for creation of semiconductor injection emission sources: injection lasers, semiconductor amplifying elements, semiconductor optical amplifiers that are used in fiber optic communication and data transmission systems, in optical superhigh-speed computing and switching systems, in development of medical equipment, laser industrial equipment, frequency-doubled lasers, and for pumping solid-state and fiber lasers and amplifiers. The heterostructure, the injection laser, the semiconductor amplifying element, and the semiconductor optical amplifier are proposed, the essential distinction of which consists in modernization of the active region and the leak-in region of the heterostructure, combined choice of location, compositions, refractive indices and thicknesses of the heterostructure layers providing the efficient functioning of the injection lasers, the semiconductor amplifying elements and the semiconductor optical amplifiers in the transient region of formation of controllable emission leak from the active layer. | 2009-06-11 |
20090147813 | LIGHT-EMITTING DEVICE AND METHOD FOR PRODUCING LIGHT EMITTING DEVICE - A method for producing a light-emitting device, includes: performing, on a first substrate made of III-V group compound semiconductor, crystal growth of a laminated body including an etching easy layer contiguous to the first substrate and a light-emitting layer made of nitride semiconductor; bonding a second substrate and the laminated body; and detaching the second substrate provided with the light-emitting layer from the first substrate by, one of removing the etching easy layer by using a solution etching method, and removing the first substrate and the etching easy layer by using mechanical polishing method. | 2009-06-11 |
20090147814 | SEMICONDUCTOR LASER DEVICE AND METHOD FOR MANUFACTURING THE SAME - A ridge stripe type semiconductor laser device is provided, on a semiconductor substrate ( | 2009-06-11 |
20090147815 | Edge Emitting Semiconductor Laser Comprising a Waveguide - In an edge emitting semiconductor laser comprising an active layer ( | 2009-06-11 |
20090147816 | SEMICONDUCTOR LASER DEVICE - In a multi-beam semiconductor laser device, relative difference in shear strain applied to each of light-emitting portions of a laser chip mounted on a submount is suppressed, thereby reducing relative difference in polarization angle. A semiconductor laser element array mounted on a submount has a structure in which a semiconductor layer having two ridge portions is stacked on a substrate, and Au plating layers are formed on the surfaces of p type electrodes formed on the ridge portions. In each of the ridge portions, a central position of the Au plating layer in a width direction is intentionally displaced with respect to a central position of the underlying light-emitting portion in a width direction, so that shear strain is applied to each of the light-emitting portions at a stage before the semiconductor laser element array is mounted on the submount. | 2009-06-11 |
20090147817 | OPTICAL MODULE, METHOD OF MANUFACTURING THE OPTICAL MODULE, AND DATA COMMUNICATION SYSTEM INCLUDING THE OPTICAL MODULE - An optical module includes a fiber array, a laser diode array and a photodiode array. The fiber array has optical fibers which are divided to a transmitter group and a receiver group. The laser diode array has laser diodes which are grouped in a transmitter group. The photodiode array has photodiodes which are divided to a monitor group and a receiver group. The laser diode array is provided between the fiber array and the photodiode array. Each optical fiber of the transmitter group, each laser diode of the transmitter group and each photodiode of the monitor group are optically aligned, respectively. Each optical fiber of the receiver group is optically aligned with each photodiode of the receiver group, respectively. | 2009-06-11 |
20090147818 | ENHANCED SURFACE-EMITTING PHOTONIC DEVICE - A surface-emitting photonic device including a structure disposed therein to enhance a performance thereof. The structure includes a two dimensionally periodic second order distributed feedback device (DFB) to emit diffraction limited outcoupled laser light having a predetermined wavelength along a propagation direction that is substantially normal to a plane of the DFB, and a first order distributed Bragg reflector (DBR) coplanar with, adjacent to and surrounding the DFB, a geometry of the DBR being selected such that a bandgap of the DBR is maximized and centered around the predetermined wavelength of the emitted light, a substrate, and either an optical gain layer, or a semi-conductor quantum well laser disposed within the substrate. | 2009-06-11 |
20090147819 | CALIBRATION OF TEMPERATURE CONTROL SYSTEM FOR SEMICONDUCTOR PROCESSING CHAMBER - Methods and systems for calibrating a temperature control system in a vapor deposition chamber. A temperature sensor senses temperature within a semiconductor processing chamber and generates an output signal. A temperature control system controls a chamber temperature by controlling a heating apparatus based on the output signal. A method includes instructing the control system to target a setpoint temperature, and depositing a layer of material onto a surface in the chamber by a vapor deposition process. A variation of a property of the layer is measured while depositing the layer, the property known to vary cyclically as a thickness of the layer increases. The measured property is allowed to vary cyclically for one or more cycles. If there is a difference between a time period of one or more of the cycles and an expected time period associated with the setpoint temperature, the temperature control system is adjusted based on the difference. | 2009-06-11 |
20090147820 | AVOIDING AIR FLOW PENETRATION IN TEMPERATURE MEASUREMENT - In one example embodiment, a board for measuring device temperatures comprises a base and one or more fingers extending from the base. The base and the one or more fingers comprise a flexible material. One or more first temperature sensors are disposed on the one or more fingers. One or more second temperature sensors are disposed on the base. Each of the first and second temperature sensors comprises a partially thermally isolated temperature sensor. | 2009-06-11 |
20090147821 | Temperature management - A method and device are described for controlling and/or attenuating aiming laser beam brightness in a hand held radiometer. The beam from the laser is directed at a target measurement surface and a transversely movable element member is interposed between the laser and the target to change the beam brightness on the target. In a preferred device a slidable or rotatable element intercepts the beam between the laser and target and a calibrated opening in the element of selected size and/or shape allows part of the beam to pass through the element to provide a safe brightness at the target. | 2009-06-11 |
20090147822 | TEMPERATURE STABILIZED OPTICAL CELL - A use composition monitor determines the concentration of peracid and/or peroxide in a use composition using a kinetic assay procedure. A sample mixture containing a sample of the use composition, a diluent and at least one reagent is prepared and analyzed using, for example, an optical detector. A temperature stabilized optical cell is disclosed which enhance consistency of response data obtained from the optical detector, especially when the use composition monitor is utilized on site. | 2009-06-11 |
20090147823 | DETACHABLE ELECTRONIC PACIFIER THERMOMETER - An electronic pacifier thermometer is provided. The electronic pacifier thermometer is composed of a pacifier device and a measurement device. The pacifier device has a built-in temperature sensing element (e.g., a temperature sensor) and a connector element. The measurement device contains a display, a circuit board mainly which is controlled by an integrated circuit, and a cable element. The circuit board contains an incomplete temperature measurement circuit that would be made complete through connection to the temperature sensing element. The temperature measurement circuit has a reference resistor (could also be installed inside the pacifier device) whose resistance difference is relative to the temperature sensing element in the pacifier device which is linearly corresponds to the temperature difference between the measured temperature and a predetermined temperature value. When the pacifier device and the measurement device are attached together by joining the connector and the cable elements, a complete and functional pacifier thermometer is formed to take body temperatures. | 2009-06-11 |
20090147824 | Wireless remote passive temperature sensor for monitoring food - A passive wireless temperature sensor with a loop antenna is placed in a remote environment for exposure to its changing temperature conditions. The sensor includes a coil of wire wrapped around a cylinder to form an air-core inductor. The cylinder contains a small amount of eutectic material similar to a conventional thermometer which has the property of being magnetic. A capacitor is connected to the coil of wire to form a resonant LC “tank” circuit. As temperature increases, the eutectic material expands through the cylinder at the core of the inductor causing an increase in inductance and corresponding decrease in the resonant frequency of the LC “tank” circuit. The temperature of the remote sensor is proportional to resonant frequency and can be determined by generating an oscillating signal and measuring resonant frequency of the remote sensor. | 2009-06-11 |
20090147825 | ELECTRONIC THERMOMETER SENSOR TIP - A sensor tip for use in an electronic thermometer is disclosed herein. An electronic thermometer includes a metal cap having a cavity and a temperature transducer. The temperature transducer is affixed within the cavity by solder. Wires connecting the temperature transducer to a circuit of the electronic thermometer form a spiral around the interior of the cap such that the wires make contact with the cap at a plurality of points. | 2009-06-11 |
20090147826 | TEMPERATURE SENSOR - A temperature sensor includes: a temperature-sensing element comprising a temperature-sensing portion and an element electrode wire connected to the temperature-sensing portion; a sheath member comprising a sheath tube and a sheath core wire extending from the sheath tube, the sheath core wire being joined to the element electrode wire to form a joint portion; an enclosing member comprising a closed-bottomed tube having a bottom portion at one end, and enclosing at least the temperature-sensing element and the joint portion; and a holding material filling at least a portion of a space enclosed by the enclosing member extending between a front end face of the temperature-sensing portion and the bottom portion of the enclosing member. The element electrode wire includes a bend at an intermediate portion of the element electrode wire between the temperature-sensing portion and the joint portion. | 2009-06-11 |
20090147827 | Methods, Systems, and Computer Program Products for Implementing Spread Spectrum Using Digital Signal Processing Techniques - Implementing spread spectrum using digital signal processing techniques. An incoming clock signal is received and sampled using a programmable sampling mechanism to generate a plurality of signal data points included in a sampled signal. The sampled signal is conditioned using a programmable signal conditioning mechanism capable of performing at least one of: reducing a cycle to cycle jitter of the sampled signal; or adjusting the sampled signal to a base frequency. The signal data points are processed and spread across a band of frequencies using a programmable digital signal processor to adjust at least one of: (a) an amplitude, (b) a phase shift, or (c) a frequency shift; for each of a plurality of respective signal data points at a plurality of corresponding frequencies in the band of frequencies. An output waveform is constructed from the processed and spread signal data points, wherein the output waveform constitutes a clock output signal. | 2009-06-11 |
20090147828 | METHOD AND APPARATUS FOR GENERATING A PERMUTATION FOR REVERSE LINK HOPPING IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for generating a permutation for reverse link hopping is provided, comprising initializing permutation constants, determining a value for p such that i<2 | 2009-06-11 |
20090147829 | METHOD AND SYSTEM FOR DYNAMICALLY CHANGING AUDIO STREAM BIT RATE BASED ON CONDITION OF A BLUETOOTH.RTM. CONNECTION - A method for communication is disclosed and may include dynamically changing the bit-rate of an audio and/or video stream communicated over a Bluetooth connection based on conditions of the Bluetooth connection. A rate at which corresponding audio and/or video samples, for said audio and/or video stream, are encoded for communication via the Bluetooth connection, may be based on Bluetooth piconet event information. The bit-rate of the audio and/or video stream may be dynamically adjusting based on bandwidth of the Bluetooth connection. The bit-rate of the audio and/or video stream may be dynamically increased based on bandwidth of the Bluetooth connection. The bit-rate of the audio and/or video stream may be dynamically decreased based on bandwidth of the Bluetooth connection. The audio and/or video samples may be encoded utilizing a variable bit rate. | 2009-06-11 |
20090147830 | Synchronization band selection of a frequency hopping wireless receiver - Methods and systems of a receiver selecting a subset of plurality of frequency hopping bands for synchronization of the receiver are disclosed. One method includes the receiver determining a receive signal quality metric for each band of the plurality of frequency hopping bands, and selecting at least one synchronization band as a subset of the plurality of frequency hopping bands for synchronization based on the receive signal quality metric of each of the plurality of frequency hopping bands. | 2009-06-11 |
20090147831 | METHOD OF MULTIPLE ACCESS COMMUNICATION IN A CENTRALIZED NETWORK BASED ON AN ULTRA WIDEBAND IMPULSE PHYSICAL LAYER - Method of multiple access communication in a centralized network based on an ultra wideband impulse physical layer allowing code-based multiple access, each user being associated with a code, the transmission being performed in an asynchronous manner in a propagation medium with multiple paths. It is characterized in that a criterion is established so as to find the codes of the Nu various users making it possible to minimize the variance of the multi-user interference J | 2009-06-11 |
20090147832 | Wireless communication system and method - A wireless communication system includes a heterogeneous wireless station for transmitting and receiving a heterogeneous wireless station signal; and a detection and avoidance device for detecting the heterogeneous wireless station signal, and for transmitting and receiving an ultra-wideband signal, the ultra-wideband signal with a reduced output or the ultra-wideband signal shifted to another ultra-wideband or ultra-wideband group in order to prevent interference with the heterogeneous wireless station based on a predetermined level. Further, a communication method includes receiving a heterogeneous wireless station signal; converting the heterogeneous wireless station signal into tone-nulling elements based on a predetermined level; receiving the tone-nulling elements, and generating an ultra-wideband signal or reducing an output of the ultra-wideband signal; and changing a time frequency number of the ultra-wideband signal based on the values of the tone-nulling elements to selectively shift to another band of the band group or another band group. | 2009-06-11 |
20090147833 | Multi-path detection method for CDMA recievers - The present invention provides a method for a multi-path detection analysis and selectivity of CDMA signals using spread spectrum receivers using a correlation technique. The invention is based on determining by the spread spectrum receiver whether a distortion of a received radio frequency signal, caused by a multi-path component of said received signal, meets a predetermined condition using a pre-selected correlation analysis of said received signal. This invention is generally applicable to global navigation satellite system (GNSS) receivers and it is particularly useful in GNSS receivers, such as GPS (global positioning system) and Galileo receivers. The important goal of this invention is to provide a simple method for identifying signals that are corrupted by multi-path effects, and can be excluded from position calculation in the GNSS receivers. | 2009-06-11 |
20090147834 | RADIO COMMUNICATION APPARATUS - An object of the invention is to stabilize the convergence operation at the automatic impedance matching time and ensure the reception quality in the convergence process in a fading environment in a radio communication apparatus which performs automatic impedance matching between an antenna and a Radio frequency section to decrease the impedance matching loss, for example, when the apparatus is brought close to a human body. A radio communication apparatus of the invention includes a Radio frequency section | 2009-06-11 |
20090147835 | RECEIVER AND TRANSMITTER FOR USE IN A SATELLITE NAVIGATION SYSTEM - A receiver is provided for use with a satellite navigation system comprising a constellation of multiple satellites. Each satellite transmits a signal incorporating a spreading code. The receiver includes at least one code storage unit that includes combinatorial logic for storing a memory code comprising a fixed pattern of bits including address decoding, wherein the stored memory code corresponds to a spreading code incorporated into a signal transmitted from a satellite. The receiver further includes a correlator for performing a correlation between an incoming signal and the stored spreading code from the one code storage unit. | 2009-06-11 |
20090147836 | METHOD FOR FREQUENCY OFFSET ESTIMATION AND AUTOMATIC FREQUENCY CONTROL FOR FILTERED SIGNAL WITH DESTROYED PHASE INFORMATION AND SIGNAL TRANSCEIVER - The invention provides a method for frequency offset estimation according to a filtered signal with destroyed phase information. In one embodiment, a filter filters an original signal according to a series of first filter coefficients to obtain a first-channel component of the filtered signal, and filters the original signal according to a series of second filter coefficients to obtain a second-channel component of the filtered signal. A series of third filter coefficients are first derived from the first filter coefficients. The original signal is then filtered according to the third filter coefficients to obtain a reference signal. A first frequency offset value is estimated according to the first-channel component of the filtered signal and the reference signal, wherein the first-channel component of the filtered signal is a first-channel component of an artificial signal, and the reference signal is a second-channel component of the artificial signal. | 2009-06-11 |
20090147837 | WIRELESS SYSTEM SYNCHRONIZATION USING FREQUENCY SHIFT MODULATION AND ON-OFF KEYING MODULATION - A system and method of wireless communication, in which both OOK and FSK modulation transceivers are used for communication among participating devices. On-Off Key (“OOK”) may be used to awaken a communication device, establish a communication channel, and handle transmission and reception of the control signal. In doing so, communication devices operating according to the invention may use less power than conventional communication devices. Once certain initial data is exchanged between communication devices, Frequency Shift Keying (“FSK”) may be used to provide the ability for many users to communicate in a more secure fashion, so that sensitive information, such as voice and data, may be transmitted between communication devices. In this manner, the privacy of data and voice signals may be more securely protected and transmitted by the FSK modulated signal. | 2009-06-11 |
20090147838 | Wireless Transceiver - In a MIMO wireless transceiver, priority control that judges priority of transmit data and a transmission mode table are provided to control an option as to which transmission system SDM or STBC is selected, coding rate and modulation method based on a transmission mode for a transmission destination that is determined by priority of transmission data and status of a communication matrix at the time of data transmission. With such arrangement, a wireless communication system composed of the MIMO wireless transceiver can control coding, MIMO signal processing and modulation methods according to priority of transmit data. More specifically, it is possible to ensure transmission of data having higher priority and improve throughput in total when a plurality of types of data are transmitted. | 2009-06-11 |
20090147839 | QAM phase error detector - The present invention relates to a method for reducing cycle slips in a carrier recovery loop for a phase detector, the method comprising the steps of receiving an input signal consisting of samples, each received sample having an in-phase (I) and quadrature-phase (Q) component, providing the input signal to a phase error estimator adapted to determine a phase error estimate, providing the phase error estimate to a loop filter, and forming an output signal from the carrier recovery loop by subtracting an output from the loop filter from the input signal, wherein the phase error estimate is determined based on a combination of the amplitude and phase of the samples and a probability measure for a specifically transmitted symbol, thereby improving phase tracking performance of the carrier recovery loop. | 2009-06-11 |
20090147840 | VIDEO ENCODING SYSTEM WITH UNIVERSAL TRANSCODING AND METHOD FOR USE THEREWITH - An encoding system includes a first signal interface for receiving a first video signal in a first format. A second signal interface receives a second video signal in a second format. A first encoding module generates a first processed video signal in a third format. A second encoding module generates a second processed video signal in a fourth format, wherein the second processed signal is generated contemporaneously with the first processed video signal and wherein the first format differs from the third format and the second format differs from the fourth format. | 2009-06-11 |
20090147841 | DISTRIBUTED VIDEO CODING APPARATUS AND METHOD CAPABLE OF CONTROLLING ENCODING RATE - There are provided a distributed video coding apparatus and method capable of controlling an encoding rate, the apparatus including: an intra-frame encoder encoding a key frame and outputting a bit stream of the encoded key frame; an encoder rate control (ERC) module calculating a bit rate according to motion complexity of a present Wyner-Ziv (WZ) frame by using a correlation between the motion complexity and the bit rate; and a turbo encoder encoding the present WZ frame by the bit rate calculated at the ERC module and outputting the encoded WZ bit stream. | 2009-06-11 |
20090147842 | VIDEO PROCESSING - An encoded video signal is to be processed so that the resulting display at a decoder is of shorter (or, as desired, longer) than envisaged at the time of encoding. The video signal contains one or more a timing parameters that, at a decoder, are to be determinative of the frame rate at which the signal is decoded. The method comprises buffering the incoming video signal, computing from the timing parameter(s) and the specified compression (or expansion) at least one modified parameter, and outputting the video signal with the modified timing parameter(s) in place of the received timing parameter. The parameters may include a parameter specifying a frame rate, at least one timestamp specifying a time at which a frame is to be decoded, and/or at least one timestamp specifying a time at which a frame is to be decoded. | 2009-06-11 |
20090147843 | METHOD AND APPARATUS FOR QUANTIZATION, AND METHOD AND APPARATUS FOR INVERSE QUANTIZATION - Provided are a quantization method and apparatus and an inverse-quantization method and apparatus for determining quantization steps using lengths of runs that are transform coefficients having consecutive zero values and modifying the transform coefficients. The quantization apparatus can modify quantization steps so that the quantization steps are proportional to lengths of previous runs to quantize significant transform coefficients. As a result, a number of bits generated during coding can be reduced without a great deterioration of video quality. | 2009-06-11 |
20090147844 | MOVING IMAGE CODING APPARATUS AND MOVING IMAGE CODING METHOD - In a moving image coding apparatus, when a first picture is entropy-coded, if an occupancy of a virtual buffer is below a predetermined position, the first picture is replaced with a copy picture. Further, among succeeding pictures that refer to a reference image corresponding to the first picture for inter picture prediction, a second picture whose quantization has been started or completed is also replaced with the copy picture. | 2009-06-11 |
20090147845 | IMAGE CODING METHOD AND APPARATUS - An image coding method includes setting an input parameter indicating a coding control scheme and a color conversion scheme, the coding control scheme including at least one of an adaptive quantization scheme, a coding mode decision scheme and a motion detection scheme, and the color conversion scheme indicating a color conversion based on a variation of a level of a coding parameter changing based on the coding control scheme, analyzing an input image based on the coding control scheme to compute the coding parameter, processing the input image by color conversion based on the color conversion scheme and the coding parameter, selecting one of a preview mode and a non-preview mode based on a user instruction, and coding the input image in the non-preview mode and coding a processed image in the preview mode based on the coding control scheme of the input parameter and the coding parameter. | 2009-06-11 |
20090147846 | SCALABLE PREDICTIVE CODING METHOD AND APPARATUS - A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression. | 2009-06-11 |
20090147847 | IMAGE CODING METHOD AND APPARATUS, AND IMAGE DECODING METHOD - An encoding apparatus | 2009-06-11 |
20090147848 | Inter-Layer Prediction Method for Video Signal - The present invention relates to a method for conducting interlayer texture prediction in encoding or decoding of video signal. The present method constructs a pair of frame macro blocks from a single field macro block or vertically-adjacent two field macro blocks of a base layer, and using texture information of the constructed pair of frame macro blocks in interlayer texture predication of a pair of frame macro blocks of a current layer. | 2009-06-11 |
20090147849 | INTRA FRAME ENCODING USING PROGRAMMABLE GRAPHICS HARDWARE - GPU-based intra frame processing techniques are provided to selectively offload computation loading from a CPU to a GPU. By rearranging the 4×4 block encoding order, the process can benefit from a parallel processing mechanism available on the GPU. Block list size has an effect on speed and by using the optimal block list size for a selection, up to about two times speed improvement in intra frame processing can be achieved. | 2009-06-11 |
20090147850 | Methods and apparatus for decoded picture buffer (DPB) management in single loop decoding for multi-view video - There are provided methods and apparatus for decoded picture buffer (DPB) management in single loop decoding for multi-view video. An apparatus includes a decoder ( | 2009-06-11 |
20090147851 | MOTION VECTOR FIELD PROJECTION DEALING WITH COVERING AND UNCOVERING - The method for high efficiency video signal compression comprises: a) calculating a first motion vector field (MvI) at a temporal location (t | 2009-06-11 |
20090147852 | Spatial Filtering of Differential Motion Vectors - Embodiments include a video data encoding method comprising receiving video input frames, and performing motion estimation on the video received frames. The motion estimation comprises performing a hierarchical motion search to find motion vectors with optimum sum of absolute difference (SAD) values, and performing spatial filtering of the motion vectors, wherein spatial filtering comprises making some pairs of motion vectors the same to achieve a zero differential. | 2009-06-11 |
20090147853 | RESOURCE-ADAPTIVE VIDEO INTERPOLATION OR EXTRAPOLATION - A decoder may apply a resource-focused interpolation mode to enable or disable interpolation or extrapolation of video units, such as frames, based on power and quality considerations. In one mode, interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation of a video frame. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. Display of an interpolated or extrapolated frame may be selectively enabled based on a quality analysis of the frame. | 2009-06-11 |
20090147854 | SELECTIVE DISPLAY OF INTERPOLATED OR EXTRAPOLAED VIDEO UNITS - Display of an interpolated or extrapolated video unit, such as a video frame, may be selectively enabled based on a quality analysis. This disclosure also describes selection of reference video frames to be used for interpolation or extrapolation. A decoder may apply a quality-focused mode to select a reference frame based on quality criteria. The quality criteria may indicate a level of quality likely to be produced by a reference frame. If no reference frames satisfy the quality criteria, interpolation or extrapolation may be disabled. A decoder may apply a resource-focused frame interpolation mode to enable or disable frame interpolation or extrapolation for some frames based on power and quality considerations. In one mode, frame interpolation may be disabled to conserve power when reference frames are not likely to produce satisfactory quality. In another mode, the threshold may be adjustable as a function of power saving requirements of the decoder. | 2009-06-11 |
20090147855 | IMAGE CODING METHOD AND APPARATUS USING SIDE MATCHING PROCESS AND IMAGE DECODING METHOD AND APPARATUS FOR THE SAME - A method and apparatus for coding an image capable of performing a prediction coding process by using a correlation degree between neighboring pixels of a current block and neighboring pixels of a reference block, and an image decoding method and apparatus. In the method, reference block candidates having neighboring pixels similar to the neighboring pixels of the current block are selected, matching errors between selected reference block candidates and the current block are calculated, and a reference block candidate having the least matching error is determined to be a predicted block of the current block. | 2009-06-11 |
20090147856 | VARIABLE COLOR FORMAT BASED VIDEO ENCODING AND DECODING METHODS AND APPARATUSES - Provided are video encoding and decoding methods and apparatuses for encoding a video by variably selecting one from two or more difference color formats. Accordingly, by using at least one of channel state information and a result of encoding a video in a predetermined encoding unit encoded in advance, whether or not to convert a video in a current encoding unit of an input RGB (red, green, blue) color format into a YCbCr color format is adaptively determined to perform encoding. Therefore, a video with uniform quality corresponding to a channel environment having a variable bit-rate can be provided. | 2009-06-11 |
20090147857 | Method for Decoding a Video Signal - A method for efficiently decoding a video signal is disclosed. The method for decoding a video signal based on fine granularity scalability (FGS) includes obtaining a first reference picture from a reference picture list, decoding a current block using the first reference picture, wherein the first reference picture and a second reference picture corresponding thereto have the same picture identification information and are distinguished from each other by another identification information. Accordingly, it is possible to minimize a problem caused in a procedure for decoding a video signal due to transmission error. | 2009-06-11 |
20090147858 | Method of selecting a reference picture - In one embodiment, the method includes obtaining a reference picture list having multiple reference pictures, reordering a reference picture index allocated to each reference picture in the reference picture list, and obtaining a field reference picture index associated with the current field macroblock. A frame reference picture index is determined based on the field reference picture index and the reference picture index, and the reference picture in field unit having a parity equal to a parity of the field macroblock is selected if the reference picture index is an even value. | 2009-06-11 |
20090147859 | Method and apparatus for performing multiple bit rate video encoding and video stream switching - A Multiple Bit Rate (MBR) video coding method and apparatus for performing video encodings at multiple bit rates and for performing advantageous switching therebetween. Frequent switching points and high video coding efficiency are achieved with use of a plurality of video encodings at each of a plurality of bit rates, wherein the switching points between multiple encodings at a given bit rate are shifted with respect to one another so that the frequency of available switching points is significantly improved without a corresponding loss of coding quality. In addition, one or more “high quality” encodings may be provided at each bit rate, wherein the “high quality” encodings employ infrequent switching points, providing a very high quality encoding at the given bit rate which may be used (or switched to) whenever possible. | 2009-06-11 |
20090147860 | METHOD AND APPARATUS FOR SIGNALING VIEW SCALABILITY IN MULTI-VIEW VIDEO CODING - There are provided methods and apparatus for signaling view scalability in multi-view video coding. An apparatus includes an encoder for encoding at least one picture for at least one view corresponding to multi-view video content in a resultant bitstream. The encoder signals at least one of a view direction and a view level to support view scalability for the at least one view using at least one of a message, a field, a flag, and a syntax element. | 2009-06-11 |
20090147861 | Imaging Frame Freeze Detection - Techniques for detecting faults in a digital video stream include frame freeze detection that can alert an operator of frame freeze in a digital video stream. According to various embodiments, a counter or other code generator is used to place a code into each frame of a video stream. The code counts sequentially, or otherwise changes in a predetermined manner, from one frame to the next and is embedded into one or more pixels of each frame. Verification at the destination, or display, of the changing code within the frames of the video stream can confirm that the video stream is not in a frame freeze fault condition prior to display. If a fault condition is detected by the code verification process, an operator can be made aware of the fault. | 2009-06-11 |
20090147862 | Semiconductor Device and IC Card Having The Same - An IC card ( | 2009-06-11 |
20090147863 | Input signal combiner system and method - Disclosed are various embodiments of an input signal combiner. In one embodiment, a receive stage receives a multi-phase waveform and separates the multi-phase waveform into a plurality of waveforms. Analog-to-digital converters convert the plurality of analog waveforms into at least one digital signal. At least one gain stage adjusts an amplitude of each of the digital signals and combines the amplitude adjusted digital signals into at least one gain adjusted combined signal. A signal extraction stage extracts an inbound signal from the at least one gain adjusted combined signal according to a demodulation scheme. | 2009-06-11 |
20090147864 | HDMI communication over twisted pairs - A method of transmitting a data stream over a communication channel, the method comprising: providing symbol sets having different numbers of symbols; modulating data in the data stream that warrant different degrees of protection against noise onto symbols from symbol sets having different numbers of symbols, wherein which symbol set given data in the stream is modulated onto is independent of symbol sets onto which other data in the data stream is modulated onto; and transmitting the symbols. | 2009-06-11 |
20090147865 | Uplink feedback for supporting MIMO operation in the LTE downlink - A quantization method of transmission of channel quality information (CQI) includes measuring two measurements SINRs and calculating a difference (i.e., Delta SINR) between the two measurements of the SINRs; determining a CQI | 2009-06-11 |
20090147866 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication apparatus capable of improving the spectrum usage rate of a system, especially, the spectrum usage rate in connection with both a fast fading and a channel estimation error as compared with the conventional sub-band adaptive method, while reducing the degree of the difficulty in achieving the adaptation, and further reducing the feedback overhead. In this apparatus, a sub-band group AMC parameter selecting part ( | 2009-06-11 |
20090147867 | Communication conrol apparatus, communication terminal apparatus, wireless communication system, and transmitting method - To determine a length of a guard interval based on performance provided in a communication terminal apparatus. A communication control apparatus | 2009-06-11 |
20090147868 | METHOD AND APPARATUS FOR TRANSMITTING PILOT SYMBOLS IN WIRELESS COMMUNICATION SYSTEM - A method of transmitting pilot symbols is disclosed. In a communication system performing communications using a plurality of antennas and multiple carriers, the present invention includes the steps of generating a plurality of pilot symbol sequences based on a basic code sequence, data-processing a plurality of the pilot symbol sequences by allocating each of a plurality of the pilot symbol sequences to the multiple carriers, and transmitting each of a plurality of the data-processed pilot symbol sequences via a corresponding one of a plurality of the antennas. | 2009-06-11 |
20090147869 | COMMUNICATION TERMINAL APPARATUS, BASE STATION APPARATUS AND RECEPTION QUALITY REPORTING METHOD - A communication terminal apparatus that can eliminate the waste of reception quality report, suppress the interference of an upstream network, perform an optimum assignment using a scheduling, prevent the loss of resources, and ensure the fairness of transmission assignment using the scheduling. In this apparatus, a reception quality determining part ( | 2009-06-11 |
20090147870 | METHOD FOR SOLVING HIGH PAPR PROBLEM OF MCM COMMUNICATION SYSTEM USING UNITARY TRANSFORM - The method contains the following steps. First, in a MCM system with N sub-carriers, the baseband signal blocks | 2009-06-11 |
20090147871 | Compact Specification of Data Allocations - The subject matter disclosed herein provides a mechanism for numbering OFDMA symbols in data regions of OFDMA frames. The method may include assigning, based on a pattern vector, one or more numbers to one or more symbols of a time diversity interval. Moreover, the one or more numbered symbols may be assigned to one or more segments. The pattern vector is then provided to a client station to enable the client station to access, based on the numbered one or more symbols, at least one of the segments. Related systems, apparatus, methods, and/or articles are also described. | 2009-06-11 |
20090147872 | METHOD OF RANGING SIGNAL DESIGN AND TRANSMISSION FOR MIMO-OFDMA INITIAL RANGING PROCESS - A mobile communication system uses a multiple-input-multiple-output (MIMO) technology with an orthogonal frequency division multiplexing access (OFDMA) scheme. Multiuser diversity, multiantenna diversity, and power control since the first ranging attempt are exploited in the initial ranging process. At network entry, an initial ranging method selects from multiple ranging signal designs to accomplish the initial ranging process. In one embodiment, three classes of ranging signal designs may be selected for use in generating ranging codes. The information on the ranging signal design to be used, which is selected by the base station based on the cell size of the communication system (i.e., the radio coverage area of the base station), is broadcast from the BS. The ranging signal designs are directly applicable to single-antenna systems, and they are applied to MIMO systems by using appropriate mapping across transmit antennas based on the adopted MIMO ranging transmission scheme. In a mobile communication system using MIMO technology with the OFDMA scheme, the ranging user selects from multiple ranging transmission schemes of different levels of computation complexity, power consumption and performance. In one example, optimum eigenmode and suboptimum eigenmode transmission schemes provide the best performance at high computational complexity and high power consumption. A simpler single-antenna selection transmission scheme provides significantly reduces computational complexity and achieves power saving at a marginal degradation in system performance. | 2009-06-11 |
20090147873 | ROBUST INTEGER CARRIER FREQUENCY OFFSET ESTIMATOR - A robust integer carrier frequency offset estimation method for OFDM systems is disclosed. Compared with conventional methods which use either two consecutive OFDM symbols or only one training symbol, the method is insensitive to the timing offset as long as the channel spread is shorter than the OFDM cyclic prefix length. Most importantly, it does not require any information on the scrambling code used in systems such as STiMi. The method improves the accuracy of integer carrier frequency offset, especially in channels with long and strong echoes. It offers the receiver more freedom in setting the FFT window since it is insensitive to the timing offset. | 2009-06-11 |
20090147874 | METHOD AND APPARATUS FOR INVERSE FAST FOURIER TRANSFORM (IFFT) IN COMMUNICATION SYSTEM - A method and an apparatus for Inverse Fast Fourier Transform (IFFT) in a communication system are provided. The method includes determining an IFFT size based on a number of input information symbols, and performing an IFFT operation based on the determined IFFT size. | 2009-06-11 |