Patent
Method and apparatus for encoding binary data
Shinichi Tanaka
- 30 Sep 1985
46
TL;DR: In this article, the authors present a method and apparatus for encoding binary data in which the method includes the steps of converting data words each containing N data bits to channel words, and producing NRZI code data from the channel words.
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Abstract: A method and apparatus for encoding binary data in which the method includes the steps of converting data words each containing N data bits to channel words each containing M data bits, and producing NRZI code data from the channel words. In the converting step, a data word is not converted in real time when the data word has a specific data bit pattern or when the data word is in a specific relationship to adjacent data words. This unconverted data word is converted to an established channel word which is so determined to reduce the DSV at a time when a predetermined number of data words which are convertible in real time have been inputted or when another data word which should be maintained unconverted has been inputted again. The established channel word is outputted after at least a delay time which is required to convert the unconverted data word to the established channel word.
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Citations
Patent
Data encoder/decoder for a high speed serial link
Stephen A. Caldara,Michael A. Sluyski,Raymond L. Strouble +2 more
- 27 Jan 1998
TL;DR: In this article, an encoder/decoder is disclosed which is operative to convert an 8 bit value to a 10 bit serial run length limited code for transmission over a serial data link.
98
Patent
Synchronous read channel
Richard T. Behrens,Kent D. Anderson,Alan J. Armstrong,Trent Dudley,Bill R. Foland,Neal Glover,Larry D. King +6 more
- 21 Dec 2001
TL;DR: A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL(1,7) encoding and decoding, error-tolerant synchronization and channel quality measurement is disclosed in this paper.
75
Patent
Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa
Josephus Arnoldus Henricus Maria Kahlman
- 17 Sep 1998
TL;DR: In this paper, a decoding device was proposed for decoding the channel signal obtained by means of the encoding device, where the bitstream of the source signal is divided into n-bit source words (x1, x2), which device comprises converting means (CM) adapted to convert said source words into corresponding m-bit channel words (y1, y2, y3).
49
A survey of codes for optical disk recording
TL;DR: This report on 20 years of development of codes for optical disk recording systems describes the state-of-the-art and feasible options for future extensions and improvements.
47
Patent
Multiplexed encoder and decoder with address mark generation/check and precompensation circuits
Po C. Huang
- 30 Oct 1989
TL;DR: In this article, a two-level multiplexed encoder/decoder based on a novel technique of code table compression is disclosed, in which code word condition sets representing the compressed code relations are sensed in the first level and are used further to set up the operation of a connected network of a multiple-xed logic circuit in the second level.
43
References
Patent
Run-length-limited variable-length coding with error propagation limitation
Franaszek Peter Anthony
- 07 Jun 1971
TL;DR: In this article, a run-length-limited, variable-length coding scheme was proposed to limit the propagation of framing errors caused by incorrect coding or faulty bit detection, where all code words utilized in this scheme were constrained to have distinctive word-ending bit sequences.
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Patent
Method and apparatus for encoding an NRZI digital signal with low DC component
Shimada Toshiyuki
- 23 Apr 1982
TL;DR: In this paper, each n-bit code word is converted into successive m-bit NRZI code words by assigning to each code word at least one m bit code word having a respective NRZI disparity.
49
Patent
Method and apparatus for reducing DC components in a digital information signal
Norihisa Shirota
- 23 Jul 1980
TL;DR: In this article, a method of reducing DC components in a digital information signal comprised of a plurality of 8-bit data words by converting each of the 8-bits data words to a 10-bit word was proposed.
49
Patent
Method and apparatus for processing binary data
Kato Misao,Yasuharu Shimeki,Hiroshi Matsushima,Shiro Tsuji,Nobuyoshi Kihara,Yoshinori Amano +5 more
- 02 Jul 1982
TL;DR: In this article, a method for processing binary data prior to magnetic recording is described, where the binary data is divided into 4-bit data segments which are converted to 8-bit codes according to a predetermined encoding transfer function describing the relationships between the 4-bits data segments and corresponding 8-bits codes.
32
Patent
Method and apparatus for encoding a binary digital information signal
Hiroshi Ogawa,Tamotsu Yamagami +1 more
- 10 Sep 1982
TL;DR: In this article, a system for encoding a binary digital information signal comprised of 8-bit information words occurring within a frequency band to produce an encoded binary digital signal consisting of 17-bit channel words formed of 14-bit words and 3-bit separation words with the encoded signal satisfying the d-and k-constraint rules was presented.
26
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