Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 375/262
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train > Quadrature amplitude modulation > Maximum likelihood decoder or viterbi decoder
Description: Subject matter for choosing an estimate code word for each possible received sequence of a demodulation output.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
7594162 Viterbi pretraceback for partial cascade processing Sep. 22, 2009
7594161 Map decoding Sep. 22, 2009
7593475 Space-time and/or space-frequency block coding using complex signal swapping Sep. 22, 2009
7590928 Apparatus and method for Viterbi decoding Sep. 15, 2009
7587004 Method for decoding data using windows of data Sep. 8, 2009
7586991 Method and apparatus for calculating likelihood metric of a received signal in a digital communication system Sep. 8, 2009
7584407 Decoder and method for performing decoding operation using map algorithm in mobile communication system Sep. 1, 2009
7583744 Method and apparatus for computing soft decision input metrics to a turbo decoder Sep. 1, 2009
7580469 Communication link control using iterative code metrics Aug. 25, 2009
7577208 VSB transmission system Aug. 18, 2009
7571376 Viterbi decoder for executing trace-back work in parallel and decoding method Aug. 4, 2009
7571375 Methods for message passing decoding using simultaneous memory accesses Aug. 4, 2009
7571369 Turbo decoder architecture for use in software-defined radio systems Aug. 4, 2009
7570578 Orthogonal frequency division demodulator, method and computer program product Aug. 4, 2009
7564930 Method and apparatus for implementing a traceback processor for trellis decoding in a Viterbi decoder Jul. 21, 2009
7564913 Divisionless baseband equalization in symbol modulated communications Jul. 21, 2009
7562021 Modification of codewords in dictionary used for efficient coding of digital media spectral data Jul. 14, 2009
7558297 Robust digital communication system Jul. 7, 2009
7555080 Digital broadcasting receiving system and equalizing method thereof Jun. 30, 2009
7555071 Method and apparatus for non-linear scaling of log likelihood ratio (LLR) values in a decoder Jun. 30, 2009
7552379 Method for iterative decoding employing a look-up table Jun. 23, 2009
7551695 Verification of the antenna weights of the base station in a UMTS mobile radio receiver by use of the Viterbi algorithm with fed-back transmission diversity Jun. 23, 2009
7551692 Frequency recovery apparatus and method for use in digital broadcast receiver Jun. 23, 2009
7545890 Method for upstream CATV coded modulation Jun. 9, 2009
7539273 Method for separating interfering signals and computing arrival angles May. 26, 2009
7533329 Method for simplifying a viterbi decoder and a simplified viterbi decoder using the same May. 12, 2009
7530010 Hybrid trace back apparatus and high-speed viterbi decoding system using the same May. 5, 2009
7529324 Decoder, decoding method, and disk playback device May. 5, 2009
7529323 Quaternary precoded continuous phase modulation soft bit metric demodulator May. 5, 2009
7526712 Deinterleaving apparatus and method using inner memory and outer memory Apr. 28, 2009
7526037 Reduced complexity detector for multiple-antenna systems Apr. 28, 2009
7522680 Apparatus, system, and method for asymmetric maximum likelihood detection Apr. 21, 2009
7522678 Method and apparatus for a data-dependent noise predictive viterbi Apr. 21, 2009
7519897 Decoding apparatus and decoding method Apr. 14, 2009
7519088 Robust digital communication system Apr. 14, 2009
7515659 Decoding techniques for multi-antenna systems Apr. 7, 2009
7512870 Method and system for improving the performance of a trellis-based decoder Mar. 31, 2009
7508877 Methods and apparatus for self-inverting turbo code interleaving with high separation and dispersion Mar. 24, 2009
7505526 Methods and apparatus for self-inverting turbo code interleaving with high separation and dispersion Mar. 17, 2009
7505525 Methods and apparatus for self-inverting turbo code interleaving with high separation and dispersion Mar. 17, 2009
7505524 Receiver device and communication system Mar. 17, 2009
7505522 Spectral shaping in multiband OFDM transmitter with clipping Mar. 17, 2009
7502418 Method and apparatus for joint equalization and decoding of multilevel codes Mar. 10, 2009
7500169 Turbo decoder, turbo decoding method, and turbo decoding program Mar. 3, 2009
7499509 Receiver for compensating nonlinearly distorted multicarrier signals Mar. 3, 2009
7499503 Parallel concatenated code with soft-in soft-out interactive turbo decoder Mar. 3, 2009
7499498 Hybrid memory architecture for reduced state sequence estimation (RSSE) techniques Mar. 3, 2009
7496159 Survivor memory management in a Viterbi decoder Feb. 24, 2009
7496146 Communication system Feb. 24, 2009
7492839 Efficient implementation of GSM/GPRS equalizer Feb. 17, 2009

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next










 
 
  Recently Added Patents
Multi-room user interface
Image processing system and method
Aggregating completion messages in a sideband interface
Method of forming micropattern, method of forming damascene metallization, and semiconductor device and semiconductor memory device fabricated using the same
Memory device and method for dynamic random access memory having serial interface and integral instruction buffer
Method for editing a media clip in a mobile terminal device, a terminal device utilizing the method and program means for implementing the method
VGPU: a real time GPU emulator
  Randomly Featured Patents
Golf bag cooler
(Tyr.sup.3, Tyr.sup.14)-SRIF and intermediates
Material handling system and method
Class of cytodifferentiating agents and histone deacetylase inhibitors, and methods of use thereof
Method for producing a suspension of hydroxylapatite
Architecture for denied permissions in Java
Method and structure for efficient data verification operation for non-volatile memories
Ball with camera and trajectory control for reconnaissance or recreation
Rendering advertisements with documents having one or more topics using user topic interest information
Method and apparatus for performing temporal checking