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Class Information
Number: 714/803
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Error/fault detection technique > Parity bit > Parity prediction
Description: Subject matter which calculates an expected parity value prior to execution of an operation and is subsequently compared to the actual parity value to detect an error.










Patents under this class:

Patent Number Title Of Patent Date Issued
8612840 Method for detecting an error in an A/D converter by parity predictions Dec. 17, 2013
8595548 Generic encoder for low-density parity-check (LDPC) codes Nov. 26, 2013
8560932 Digital system and a method for error detection thereof Oct. 15, 2013
8407555 LDPC codes robust to non-stationary narrowband ingress noise Mar. 26, 2013
8316277 Apparatus, system, and method for ensuring data validity in a data storage process Nov. 20, 2012
8291307 Parity generator, priority encoder, and information processor Oct. 16, 2012
8271852 Data recovery scheme Sep. 18, 2012
8250430 Coding system, encoding apparatus and decoding apparatus, with information and parity storage units Aug. 21, 2012
8213535 Transmitting apparatus with bit arrangement method Jul. 3, 2012
8176380 Algebraic construction of LDPC (low density parity check) codes with corresponding parity check matrix having CSI (cyclic shifted identity) sub-matrices May. 8, 2012
8140951 Method and system for instruction address parity comparison Mar. 20, 2012
8132086 Semiconductor memory device for byte-based masking operation and method of generating parity data Mar. 6, 2012
8055988 Multi-bit memory error detection and correction system and method Nov. 8, 2011
8037398 System for precoding parity bits to meet predetermined modulation constraints Oct. 11, 2011
8001452 Methods and apparatus for soft decision decoding using reliability values based on a log base two function Aug. 16, 2011
7996747 Forward error correction encoding for multiple link transmission compatible with 64B/66B scrambling Aug. 9, 2011
7751505 LDPC encoder and encoder and method thereof Jul. 6, 2010
7698503 Computer system with data recovering, method of managing data with data recovering and managing computer for data recovering Apr. 13, 2010
7484168 Parity check outer code and runlength constrained outer code usable with parity bits Jan. 27, 2009
7453960 LDPC encoder and encoder and method thereof Nov. 18, 2008
7428693 Error-detecting encoding and decoding apparatus and dividing apparatus Sep. 23, 2008
7340003 Multi-mode iterative detector Mar. 4, 2008
7328305 Dynamic parity distribution technique Feb. 5, 2008
7284186 Parity check outer code and runlength constrained outer code usable with parity bits Oct. 16, 2007
7246304 Decoding architecture for low density parity check codes Jul. 17, 2007
7085986 Low decoding complexity concatenated codes for high rate coded transmission Aug. 1, 2006
6795947 Parity check outer code and runlength constrained outer code usable with parity bits Sep. 21, 2004
6718276 Method and apparatus for characterizing frequency response on an error performance analyzer Apr. 6, 2004
6658621 System and method for silent data corruption prevention due to next instruction pointer corruption by soft errors Dec. 2, 2003
6513142 System and method for detecting of unchanged parity data Jan. 28, 2003
6393597 Mechanism for decoding linearly-shifted codes to facilitate correction of bit errors due to component failures May. 21, 2002
6134699 Method and apparatus for detecting virtual address parity error for a translation lookaside buffer Oct. 17, 2000
5978957 Very fast pipelined shifter element with parity prediction Nov. 2, 1999
5832250 Multi set cache structure having parity RAMs holding parity bits for tag data and for status data utilizing prediction circuitry that predicts and generates the needed parity bits Nov. 3, 1998
5651132 Disk array control system Jul. 22, 1997
5450340 Implementation techniques of self-checking arithmetic operators and data paths based on double-rail and parity codes Sep. 12, 1995
5440604 Counter malfunction detection using prior, current and predicted parity Aug. 8, 1995
5241547 Enhanced error detection scheme for instruction address sequencing of control store structure Aug. 31, 1993
5144573 Barrel shifter with parity bit generator Sep. 1, 1992
4958353 Device for calculating the parity bits of a sum of two numbers Sep. 18, 1990
4924423 High speed parity prediction for binary adders using irregular grouping scheme May. 8, 1990
4924424 Parity prediction for binary adders with selection May. 8, 1990
4896323 Parity-checked clock generator system Jan. 23, 1990
4884273 Method and apparatus for monitoring the consistency of successive binary code signal groups in data processing equipment Nov. 28, 1989
4864531 Error control apparatus using restore memory for recovering from parity discordances in transmissions between controller and real-time I/O devices Sep. 5, 1989
4727548 On-line, limited mode, built-in fault detection/isolation system for state machines and combinational logic Feb. 23, 1988
4335460 Printer system having parity checking of print hammers using software control Jun. 15, 1982
4291407 Parity prediction circuitry for a multifunction register Sep. 22, 1981
4107649 Check system for detecting malfunction of an error detection circuit Aug. 15, 1978











 
 
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