Title:
コードレートが7/8であるMTRコード符号化/復号化方法およびその装置
Document Type and Number:
Japanese Patent JP4169279
Kind Code:
B2
Abstract:
A rate 7/8 MTR code encoding/decoding method and apparatus. The encoding method includes: generating a rate-7/8 MTR code for inputting 7-bit data and outputting a predetermined 8-bit codeword; checking whether codewords satisfy a predetermined constraint condition by connecting the 8-bit codeword and a subsequent 8-bit codeword; and if the codewords do not violate the constraint condition, not converting the codewords. The decoding method includes: checking whether the codewords satisfy a predetermined MTR constraint condition by connecting a current 8-bit codeword c(k) and a subsequent 8-bit codeword c(k+1); if the codewords violate the constraint condition, converting the codewords, and if the codewords do not violate the constraint condition, not converting the codewords; and decoding each converted 8-bit codeword into 7-bit data using a predetermined MTR code. Data is reliably reproduced with high write density, and large amounts of data are stored in and reproduced from a magnetic recording information storage medium.
More Like This:
| JPH0449577 | DIGITAL SIGNAL RECORDING AND REPRODUCING DEVICE AND RELATIVE SPEED DETECTOR |
| JPH05225699 | MAGNETIC RECORDING/REPRODUCING DEVICE |
| JP2007116500 | PLL CIRCUIT |
Inventors:
Li Jun
Lee Zhu Xuan
Lee
Lee Hei
Lee Zhu Xuan
Lee
Lee Hei
Application Number:
JP2004312956A
Publication Date:
October 22, 2008
Filing Date:
October 27, 2004
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO.,LTD.
Institute for Information Technology Advancement
Institute for Information Technology Advancement
International Classes:
G11B20/14; G11B20/10; G11B20/18; H03M5/14; H03M7/14
Domestic Patent References:
| JP5036213A | ||||
| JP11215003A |
Attorney, Agent or Firm:
Morita Suda
Isono Dozo
Isono Dozo
Isono Dozo
Isono Dozo