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| Number | Title | Issue Date |
| 7983311 | Signal detection device and signal detection method A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into s... | 07/19/2011 |
| 7907642 | Method of enhancing a program stream A content comprises contiguous blocks containing a program stream and interleaved blocks containing interleaved program streams, wherein the program streams are divided into program units and are readable independently of one another, and the occurrence of consecuti... | 03/15/2011 |
| 7738509 | Method and system for inband emergency notification for voice calls The invention provides a method for inband emergency notification for voice calls by multiplexing at least one emergency signal within an audible data stream and transmitting the audible data stream from a telematic communication unit to a mobile vehicle communicati... | 06/15/2010 |
| 7649913 | Method and system for mitigating traffic congestions in a communication network A method for mitigating traffic congestions in a communication network uses concatenated data packets to transmit information between terminals, e.g., edge proxies, of the network. Embodiments of the invention are directed to packet communications over military or c... | 01/19/2010 |
| 7599402 | Communication device and method A device and method for controlling data unit communications between a sender and a receiver, and flexibly responding to a potential data loss event. Data units are transmitted from the sender to the receiver, and the receiver returns an acknowledgment data unit for... | 10/06/2009 |
| 7382805 | Method and apparatus for aggregating Ethernet streams Embodiments of a method and apparatus for aggregating Ethernet streams are generally described. According to but one example embodiment, implementations of a physical coding sublayer (PCS) modify one or more Ethernet streams to uniquely distinguish at least one of t... | 06/03/2008 |
| 7375680 | Ionosphere delay measurement using carrier phase One or more atmospheric propagation effects are estimated by using a phase comparison between and upper sideband and a lower sideband of a modulated signal. In one embodiment, one or more propagation effects are estimated by using a phase comparison between an upper... | 05/20/2008 |
| 7369622 | Diversity circuit demodulating OFDM-method signals and diversity receiving apparatus having said diversity circuit therein In a receiving apparatus, two respective reference-point computing units in respective diversity branches calculate reference points on a constellation, and two respective reference-point specifying units in the two diversity branches select respectively the referen... | 05/06/2008 |
| 7359444 | Method and apparatus for extending the frequency range of multi-tone modems An inverse discrete Fourier transform (IDFT) processor processing a lower frequency image of a selected transmit band along with base images of remaining transmit bands called for in a corresponding X-DSL standard. A hybrid upconverter processing the IDFT output by ... | 04/15/2008 |
| 7355963 | Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing Systems for tone allocation are provided. In one embodiment, a system comprises: a plurality of remote units and a host including a demodulator. Each remote transmits an upstream OFDM signal using a multiple access scheme to the host using an OFDM waveform. The host... | 04/08/2008 |
| 7349446 | Signal superimposition A method and apparatus are provided in which control data for a generator system is multiplexed onto a synchronization signal. ... | 03/25/2008 |
| 7348894 | Method and apparatus for using a data telemetry system over multi-conductor wirelines A data telemetry system for multi-conductor wirelines to enhance transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a first terminal of a data re... | 03/25/2008 |
| 7340259 | Robust, efficient, localization system Replica correlation processing, and associated representative signal-data reduction and reconstruction techniques, are used to detect signals of interest and obtain robust measures of received-signal parameters, such as time differences of signal arrival and directi... | 03/04/2008 |
| 7333465 | Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers The present invention is a novel and improved method and apparatus for transmitting data in a multiple carrier CDMA communication system. In the first implementation of the present invention, the data is encoded and the resulting encoded symbols are divided up and t... | 02/19/2008 |
| 7327684 | Method of operating, administrating and maintaining very high bit rate digital subscriber line Disclosed is an operation, administration, and maintenance method for very high bit rate digital subscriber line, which has a simplified frame structure, can be easily modified, and can provide various information. In very high bit rate digital subscriber line syste... | 02/05/2008 |
| 7317738 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor In a data transmission method for information data containing additional information data therewith, comprising, at a transmitter side, following steps: adding error correction codes for correcting error to said additional informat... | 01/08/2008 |
| 7310366 | Procedure for estimating amplification factors of a CDMA signal The invention concerns a procedure for estimating unknown amplification factors of a received CDMA signal, which encompasses a plurality of code channels, in which respectively an input signal from a symbol plane is split on a symbol plane through splitting with a s... | 12/18/2007 |
| 7309018 | Semiconductor integrated circuit device and noncontact IC card A semiconductor integrated circuit includes a demodulating circuit, a plurality of sampling circuits each capable of sampling output signals of the demodulating circuit, a plurality of detection circuits capable of detecting headers of output signals of the sampling... | 12/18/2007 |
| 7307943 | Mobile station, base station, communication system, and communication method A mobile station, and corresponding system and method, the mobile station including an IQ multiplexer configured to IQ multiplex transmission data for a data channel and control data for a control channel, and to generate a complex signal; and a transmitter configur... | 12/11/2007 |
| 7302226 | Combined fixed satellite service and mobile platform satellite service communication system A communication system for a mobile platform satellite service (MPSS) system includes a receiver subsystem (RS) and a transmitter subsystem (TS). A satellite transponder is in communication with the RS and the TS of the mobile platform. A satellite service ground st... | 11/27/2007 |
| 7295600 | ADSL modem apparatus and re-initialization method for ADSL modem apparatus The present invention monitors communication status during a data communication, determines whether the current communication status needs a re-initialization, requests a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC when a re-initia... | 11/13/2007 |
| 7287211 | Data readout device and data readout method A data readout device generates decoded data based on a data bit determined by performing a hard-decision on likelihood data. The likelihood data is generated using an iterative decoding method corresponding to a turbo-coding process. The decoding process is perform... | 10/23/2007 |
| 7278089 | System and method for error detection in encoded digital data A receiver is to receive an encoded data block that was encoded using a convolutional encoder and includes source bits and error detection bits. The receiver may include a Viterbi decoder, a de-mapper and an error detection unit. The error detection unit is to deter... | 10/02/2007 |
| 7257066 | Data defect detection using soft decision result A defect detection device for detecting a defect of data recorded on a recording medium includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium based on soft decision results... | 08/14/2007 |
| 7257117 | Mapping arbitrary signals A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bits changed and very little jitter or wander added. In this way, the continuous format signal may be car... | 08/14/2007 |
| 7253917 | Image processing apparatus and its control method, computer program, and storage medium With this invention, upon scanning a print, since additional information recorded together with that print is reproduced while displaying the scanned image, a special effect that cannot normally be obtained from still images can be obtained. A print on which ... | 08/07/2007 |
| 7254122 | Apparatus and method for generating pilot beacon signal in base stations of CDMA system An apparatus for generating pilot beacon signals for handoff between base stations having a different frequency assignment FA in a code division multiple access CDMA radio communication system includes a PN code generating unit for generating inphase (I)-channel and... | 08/07/2007 |
| 7248607 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor In a data transmission method for information data containing additional information data therewith, comprising, at a transmitter side, following steps: adding error correction codes for correcting error to said additional informat... | 07/24/2007 |
| 7236503 | Short range RF communication for jet engine control A method transmitting a message over at least one of a plurality of radio frequency (RF) channels of an RF communications network is provided. The method comprises the steps of detecting a presence of jamming pulses in the at least one of the plurality of RF channel... | 06/26/2007 |
| 7221917 | Adjacent channel interference mitigation for FM digital audio broadcasting receivers A method of receiving an FM digital audio broadcasting signal including a first plurality of subcarriers in an upper sideband of a radio channel and a second plurality of subcarriers in a lower sideband of the radio channel comprises the steps of mixing the digital ... | 05/22/2007 |
| 7221688 | Method and apparatus for receiving a digital audio broadcasting signal A method for processing a composite digital audio broadcasting signal including an analog modulated portion in a central frequency band and digitally modulated portions in upper and lower sidebands with respect to the central frequency band, the method comprises the... | 05/22/2007 |
| 7215752 | Intelligent switching system for voice and data A teleconferencing system for voice and data provides interconnections among user sites via a central station. User stations at user sites each alternate operation between a data mode connecting a user computer and modem to a user telephone communication path and a ... | 05/08/2007 |
| 7215934 | Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements An iterative multistage detection system and method for orthogonally multiplexing K channels onto a signal processing chain using N orthogonal sequences of length N. The K channels include a first set of N channels and a second set of M channels (the M channels bein... | 05/08/2007 |
| 7206279 | OFDM receiving apparatus and method of demodulation in OFDM receiving apparatus An apparatus for receiving an OFDM modulated signal includes: an A/D converter converting the received signal to a digital signal; a quadrature demodulator performing quadrature detection of the digital signal and converting the digital signal to a base-band signal;... | 04/17/2007 |
| 7206587 | Communication terminal apparatus, base station apparatus, and radio communication method A communication mode determination section 201 determines the communication mode based on the CIR measured by a CIR measurement section 219; a DRC signal creation section 202 creates a DRC signal with a number corresponding to the communication ... | 04/17/2007 |
| 7206326 | Unequal error protection for packet switched networks A method of encoding at least two sets of data bits into a single encoded block is provided, wherein each set of data bits includes a primary set of bits to be encoded and a secondary set of bits to remain unencoded, wherein the encoding technique requires a set of ... | 04/17/2007 |
| 7202914 | Digital television transmitter identification system using pseudo-random sequences The invention relates to a transmitter identification system, which utilizes an identification signal embedded into a digital television signal, enabling the transmitter of origin to be identified at a receiving station. Ideally the identification signal is an ortho... | 04/10/2007 |
| 7197690 | Bandwidth efficient coded modulation scheme based on MLC (multi-level code) signals having multiple maps Bandwidth efficient coded modulation scheme based on MLC (Multi-Level Code) signals having multiple maps. The use of multiple maps is adapted to various types of coded signals including multi-level LDPC coded modulation signals and other MLC signals to provide for a... | 03/27/2007 |
| 7197062 | Method and apparatus to detect and decode information Briefly, in accordance with an embodiment of the invention, a method and apparatus to detect and decode information is provided, wherein the method includes sampling a radio frequency (RF) impulse signal to generate a sample signal and storing the sample signal for ... | 03/27/2007 |
| 7191387 | Method and apparatus for forward error correction A convolutional decoder for a wired or wireless receiver receiving an encoded datastream. The branch and path metric components compute branch and path metrics for the encoded datastream stream. The traceback unit couples to the path metric component to trace in eac... | 03/13/2007 |
