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Class Information
Number: 714/809
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Error/fault detection technique > Code constraint monitored
Description: Subject matter in which the digital data encoding scheme provides inherent constrained conditions which are monitored to enable error/fault detection.

Sub-classes under this class:

Class Number Class Name Patents
714/810 Multilevel coding (n>2) 71

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8581755 Multiple word data bus inversion Nov. 12, 2013
8533246 Carry bucket-aware multiplication having bits with most significant bits set to zero Sep. 10, 2013
8533579 Data loss detection method for handling fuzziness in sensitive keywords Sep. 10, 2013
8533577 Universal parity encoder Sep. 10, 2013
8412950 Defining classification thresholds in template protection systems Apr. 2, 2013
8359498 Encoding and decoding apparatus and method with hamming weight enhancement Jan. 22, 2013
8279668 Apparatus and method of memory programming Oct. 2, 2012
8230314 Universal parity decoder Jul. 24, 2012
8201071 Information transmission and reception Jun. 12, 2012
8166364 Low density parity check decoder using multiple variable node degree distribution codes Apr. 24, 2012
8069403 Majority voting logic circuit for dual bus width Nov. 29, 2011
8020073 Dynamic memory architecture employing passive expiration of data Sep. 13, 2011
7984369 Concurrent code checker and hardware efficient high-speed I/O having built-in self-test and debug features Jul. 19, 2011
7900128 Data dependent scrambler with improved global constraint Mar. 1, 2011
7900127 LDPC (Low Density Parity Check) codes with corresponding parity check matrices selectively constructed with CSI (Cyclic Shifted Identity) and null sub-matrices Mar. 1, 2011
7814394 Post viterbi error correction apparatus and related methods Oct. 12, 2010
7802151 Encoding and decoding apparatus and method with hamming weight enhancement Sep. 21, 2010
7783937 Encoding and decoding apparatus and method with hamming weight enhancement Aug. 24, 2010
7752583 System for verification of digital designs using case-splitting via constrained internal signals Jul. 6, 2010
7738293 Apparatus and method of memory programming Jun. 15, 2010
7707477 Checksum calculation Apr. 27, 2010
7577894 Apparatus and method for judging the legitimacy of transfer data Aug. 18, 2009
7552380 Method and apparatus for encoding and decoding modulation code Jun. 23, 2009
7496738 Method of automatic control of the execution of a program by a microprocessor Feb. 24, 2009
7496824 Data recording device and method, data reproduction device and method, information recording medium, program-containing medium, and program Feb. 24, 2009
7392464 Universal parity encoder Jun. 24, 2008
7290203 Dynamic memory architecture employing passive expiration of data Oct. 30, 2007
7243297 Method for bit recovery in an asymmetric data channel Jul. 10, 2007
7242325 Error correction compensating ones or zeros string suppression Jul. 10, 2007
7149956 Converging error-recovery for multi-bit-incrementing gray code Dec. 12, 2006
7149955 Encoding and decoding apparatus and method with hamming weight enhancement Dec. 12, 2006
7013422 Noise removal in multibyte text encodings using statistical models Mar. 14, 2006
6977970 Data reproducing apparatus and method for improving detection performance by adjusting decision levels used in data detector Dec. 20, 2005
6732320 Method and system for improved error correction in optical media data processing May. 4, 2004
6622284 Method and apparatus for detection of errors in one-hot words Sep. 16, 2003
6604224 Method of performing content integrity analysis of a data stream Aug. 5, 2003
6430230 Methods of encoding payload bits for transmission Aug. 6, 2002
6275967 Optical disk drive using y0+y1 signal detection Aug. 14, 2001
6233289 High rate trellis code for partial response channels May. 15, 2001
6079045 Transmission system and recording system having a simplified symbol detector Jun. 20, 2000
6003154 System and method for covering illegal states in a programmable gate array Dec. 14, 1999
5950150 Fire/life safety system operation criteria compliance verification system and method Sep. 7, 1999
5942001 Information processing apparatus Aug. 24, 1999
5894486 Coding/decoding apparatus Apr. 13, 1999
5862161 Sampled amplitude read channel with simplified sequence detector matched to partial erasure Jan. 19, 1999
5802081 Digital information modulating apparatus Sep. 1, 1998
5768630 Apparatus for receiving and transmitting a serial data Jun. 16, 1998
5748649 System enabling a magnetic code recorded on a magnetic track to be properly decoded in the form of a binary message May. 5, 1998
5703889 High efficiency coding signal processing apparatus with error propagation influence reduction Dec. 30, 1997
5682405 Ones density monitor Oct. 28, 1997

1 2 3

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