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| Number | Title | Issue Date |
| 8156413 | Convolutional encoding with partitioned parallel encoding operations Convolutional encoding throughput is increased by partitioning input information bits into a plurality of blocks that are convolutionally encoded in parallel. A plurality of convolutional encoding operations which have respective initial encode states that are mutua... | 04/10/2012 |
| 8127215 | Signal loss detector for high-speed serial interface of a programmable logic device A loss-of-signal detector includes digital and analog monitoring of incoming data. The incoming signal is compared digitally to at least one predetermined pattern that may indicate a loss of signal, and also is monitored by an analog detector that detects transition... | 02/28/2012 |
| 7996749 | Signal loss detector for high-speed serial interface of a programmable logic device A loss-of-signal detector includes digital and analog monitoring of incoming data. The incoming signal is compared digitally to at least one predetermined pattern that may indicate a loss of signal, and also is monitored by an analog detector that detects transition... | 08/09/2011 |
| 7418650 | Method for temporal synchronization of clocks In order to carry out in a communication system (1) a temporal synchronization of clocks in a particularly rapid and efficient manner, a method is proposed which has the following steps: acquiring state values which are dependent on a time base (10); f... | 08/26/2008 |
| 7373582 | Apparatus and method for turbo decoding using a variable window size An apparatus and method for turbo decoding using a variable window size. A control logic block receives information about a code rate of received data bits and a data block size, adjusts a window size according to the code rate information, and computes an initial d... | 05/13/2008 |
| 7370262 | Apparatus and method generating error flag for error correction An error flag generation apparatus and method for error correction, wherein the apparatus includes: a frame-sync error memory which stores frame-sync error information for each data block; a BIS (Burst Indicator Subcode) error flag memory which stores a BIS error fl... | 05/06/2008 |
| 7366477 | Redundancy version implementation for an uplink enhanced dedicated channel This invention describes a method for a redundancy version implementation of an uplink (UL) enhanced dedicated channel (E-DCH) in mobile communication systems by calculating a redundancy version number (RVN) as a function of a connection frame number (CFN), a maximu... | 04/29/2008 |
| 7366268 | Selective data inversion in ultra-wide band communications to eliminate line frequencies A method for generating an ultra-wide-band (UWB) having a reduced discrete frequency component defines frame synchronization signal and an inverted frame synchronization signal. As each frame is generated, the method randomly selects the frame synchronization signal... | 04/29/2008 |
| 7346834 | Randomizer systems for producing multiple-symbol randomizing sequences A system that produces one or more non-repeating randomizer sequences of up to 2m−1 or more m-bit symbols includes a randomizer circuit that is set up in accordance with a polynomial with primitive elements of GF(2m) as coefficients. The syst... | 03/18/2008 |
| 7333419 | Method to improve performance and reduce complexity of turbo decoder One aspect of the invention relates to a method and embodiment for decoding a sequence of frames in a communication system having a predetermined decoding time constraint per frame. The first frame of a sequence of frames is decoded for a time period longer than the... | 02/19/2008 |
| 7334248 | Conditional access filter as for a packet video signal inverse transport system A method and an apparatus for processing a packetized transport stream that determines whether a sequence of transport packets are received in a proper sequence and whether an error is present in a particular transport packet. The method includes the steps of determ... | 02/19/2008 |
| 7328397 | Method for performing error corrections of digital information codified as a symbol sequence A method and system for making error corrections on digital information coded as symbol sequences, for example digital information stored in electronic memory systems or transmitted from and to these systems is described, provides the transmission of sequences incor... | 02/05/2008 |
| 7260653 | Method and device for the synchronization between two networks The present invention relates to a method of synchronization between communication networks exchanging information by frame of informations, each communication network having clock and the number of clock pulses is monitored by a counter the synchronization is made ... | 08/21/2007 |
| 7256953 | Data synchronizing signal detector, signal processing device using the detector, information recording and reproducing apparatus having the detector and the device, data synchronizing signal detecting method, and information recording medium for using in the method A data discriminating unit includes a data discriminator and a sync signal discriminator. A data sync signal is detected for the bit string discriminated from the output of the sync signal discriminator, and the data is demodulated for the bit string discriminated f... | 08/14/2007 |
| 7234100 | Decoder for trellis-based channel encoding A system and method for decoding a channel bit stream efficiently performs trellis-based operations. The system includes a butterfly coprocessor and a digital signal processor. For trellis-based encoders, the system decodes a channel bit stream by performing operati... | 06/19/2007 |
| 7231583 | Communication method and apparatus In a frame sync method, a receiver searches for the presence of an N-symbol long unique word pattern. For each possible frame sync detected, the receiver proceeds to demodulation and FEC processing. After each iteration of the FEC decoder, the detected unique word p... | 06/12/2007 |
| 7231008 | Fast locking clock and data recovery unit A method of synchronizing a transmitter and a receiver, comprising: receiving a transmitted serial data stream. Creating an N-bit data sample from the serial data stream. Decoding the N-bit data sample by a ring decoding technique. The ring decoding technique compri... | 06/12/2007 |
| 7224743 | Efficient decoding of trellis coded modulation waveforms A method and apparatus for decoding trellis-coded digital data. Digital data samples that have been convolutionally encoded by trellis-coded modulation (TCM) for purposes of forward error correction require a computationally intensive Viterbi decoder for best perfor... | 05/29/2007 |
| 7203179 | Method and apparatus for normalizing CDMA RAKE output A technique is proposed for normalizing the multi-bit output of a RAKE receiver by automatically selecting from it fewer bits which are representative of the data in the CDMA signal. The invention is applicable to a CDMA signal in which the data is transmitted disco... | 04/10/2007 |
| 7200794 | Method and system for adaptive interleaving A method a system for automatically controlling an adaptive interleaver involves monitoring performance parameters of a transmission system and controlling the adaptive interleaver in response to the performance parameters. The SNR and the data rate of the transmiss... | 04/03/2007 |
| 7193952 | Data reproducing apparatus for demodulating data from a reproduction signal In a data recording apparatus, values of parity bits to be additionally provided every one predetermined length block in data obtained by demodulating the original data are determined so as to satisfy a part of or an entire the predetermined run length limitation ru... | 03/20/2007 |
| 7178093 | PRML system with a branch estimator A PRML system with a branch estimator. The PRML system includes an analog-to-digital converter (ADC) for receiving an analog input signal and converting the analog input signal into a digital sampled signal according a sampling clock; a branch estimator for receivin... | 02/13/2007 |
| 7174494 | Method and system for coded null packet-aided synchronization A communication system comprising a transmitter that is adapted to transmit a data signal that is broken into a plurality of time slots. The transmitter inserts communication data into a subset of the plurality of time slots and to create null data representative of... | 02/06/2007 |
| 7173985 | Method and apparatus for implementing a Viterbi decoder The Viterbi decoder includes a branch metric processor that determines branch metrics for states of an encoder in a time period. The Viterbi decoder includes a survivor processor that selects survivor paths between states of the encoder in consecutive time periods. ... | 02/06/2007 |
| 7165208 | Apparatus and method for encoding and decoding TFCI in a mobile communication system Disclosed is an apparatus for encoding k consecutive inputs indicating a TFCI (Transport Format Combination Indicator) of each of successively transmitted frames into a sequence of m symbols in an NB-TDD (Narrowband-Time Division Duplex) mobile communication system.... | 01/16/2007 |
| 7162675 | Error detection methods in wireless communication systems The error detection method includes decoding a portion of each control channel that is simultaneously received by a user equipment (UE) in a wireless communication system. The UE is provided with techniques to determine if one or more of the control channels were su... | 01/09/2007 |
| 7137058 | Block synchronization detection apparatus and method A block synchronization detection apparatus and method. Block synchronization for discriminating one error correction code (ECC) block from another is detected, even when a first sector of the ECC block is not detected in a system having a decoder that decodes an EC... | 11/14/2006 |
| 7131054 | Apparatus and method for efficient decoder normalization An apparatus and method are described for normalizing a plurality of state metric values stored in a plurality of accumulators. In one embodiment, normalization logic monitors the each of the state metric values. When all of the values are above a predetermined thre... | 10/31/2006 |
| 7120854 | Wireless access modem having downstream channel resynchronization method A resynchronization method for use in a data communication system having a first device configured to transmit data at a symbol rate to a second device. The second device includes a Reed Solomon (RS) decoder having a RS lock indicator and a Moving Picture Experts Gr... | 10/10/2006 |
| 7114122 | Branch metric generator for Viterbi decoder The present invention discloses an apparatus used to generate a branch metric for a Viterbi decoder. The apparatus includes a linear feedback shift register and a convolutional encoder. The linear feedback shift register performs a calculation based on a specific pr... | 09/26/2006 |
| 7099398 | Method and apparatus for establishing non-standard data rates in a wireless communication system A method and apparatus for establishing a non-standard data rate in a wireless communication system include processing that begins by establishing a standard specified data rate for a given transmission. The processing then continues by determining whether the data ... | 08/29/2006 |
| 7096411 | Method and apparatus for reliable resynchronization of sequential decoders A system and method for the resynchronization of a sequential decoder that decodes received signal samples stored within an input buffer is disclosed. The system comprises two auxiliary decoders coupled to the sequential decoder for running a simplified MAP decoding... | 08/22/2006 |
| 7093184 | Apparatus and method for generating codes in a communication system Disclosed is an apparatus and method for generating a QCTC (Quasi-Complementary Turbo Code) considering a characteristic of a turbo code in a packet communication system or a communication system using an ARQ (Automatic Repeat reQuest) scheme by segmenting a length ... | 08/15/2006 |
| 7089485 | Simple link protocol providing low overhead coding for LAN serial and WDM solutions A data structure, method and protocol wherein synchronization data indicative of a data frame delineation point is inserted within an inter-packet gap (IPG) proximate a data frame during transmission. Optionally, a cyclical redundancy check (CRC) length indicative d... | 08/08/2006 |
| 7085993 | System and method for correcting timing signals in integrated circuits A system and method for dynamically altering a clock speed of a clock signal used for timing of data signal transmissions and receptions within an integrated circuit (IC) device. The system includes a clock generator circuit for providing a clock signal used for tim... | 08/01/2006 |
| 7076725 | Digital data radio receiving device and method A wireless relay system (1) comprises a wireless camera (11) and a reception relay station (12). The reception relay station (12) comprises a plurality of external reception units (13) arranged at spatially different positions and ... | 07/11/2006 |
| 7065696 | Method and system for providing high-speed forward error correction for multi-stream data A system for providing a high-speed implementation for multi-stream forward error correction (FEC) is provided. According to one exemplary aspect, the system is able to provide block-based multi-stream FEC that reduces the power consumption when compared with conven... | 06/20/2006 |
| 7054357 | Error rate estimating device, method, and information recording medium To reduce the size of the device for judging the error rate on a channel and reducing the amount of processing, a normalization accumulator cumulatively adds the number of times that normalization is performed within a predetermined time in an ACS circuit calculatin... | 05/30/2006 |
| 7050450 | Telecommunications system and method for producing a master clock in the same A telecommunications system includes devices to provide output clock signals that are synchronous to at least one source clock signal. A main clock generator includes a selector to select one of the output clock signals. The main clock generator generates a main clo... | 05/23/2006 |
| 7046719 | Soft handoff between cellular systems employing different encoding rates A receiver (200) is provided receiving signals from differing base stations (BTSA and BTSB). The signal from BTSA is encoded using a first rate convolutional encoder while the signal transmitted from BTSB is encoded... | 05/16/2006 |
