Title:
データ伝送方法、データ記録装置及びデータ再生装置
Document Type and Number:
Japanese Patent JP4447667
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To encrypt data in a simple constitution and access at high speed. SOLUTION: In an error-correcting code format, a sector 73 is constituted of a head part 71 and a user data part 72. An error correction C1 direction is set in a R/W direction and a C1 parity 74 is generated and added. On the other hand, an error correction C2 direction is set in a direction oblique to the C1 direction and a C2 parity 75 is generated and added. Data excluding at least the head part 71, e.g., a part 76 in the same row as the head pat 71 among the data handled in an error-correcting code process are converted in accordance with an encryption flag data.
Inventors:
Yoichiro Sako
Yoshitomo Osawa
Akira Kurihara
Isao Kawashima
Yoshitomo Osawa
Akira Kurihara
Isao Kawashima
Application Number:
JP19519195A
Publication Date:
April 07, 2010
Filing Date:
July 31, 1995
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06F12/14; G11B20/12; G06F12/16; G06F21/10; G06F21/60; G06F21/62; G06F21/72; G09C1/00; H03M13/00; H04L1/00; H04L9/18
Domestic Patent References:
| JP6290542A | ||||
| JP4170763A | ||||
| JP7169205A | ||||
| JP729314A | ||||
| JP62192978A | ||||
| JP6234439A | ||||
| JP492840U | ||||
| JP715428A | ||||
| JP1287870A | ||||
| JP7115638A |
Attorney, Agent or Firm:
Akira Koike
Seiji Iga
Seiji Iga