Data recording method with improved synchronization recovery

Details Data recording method with improved synchronization recovery Data recording method with improved synchronization recovery

1986-09-09

1988-09-27

Cardillo, Raymond F.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

360 48, G11B 2012

Patent

active

047747013

ABSTRACT:
A recording format on a recording medium comprises a data portion (4) in which a data train should be recorded. The data portion (4) comprises a user data portion (44 and 47), a check data portion (45) and resynchronizing pattern portions (46). The data train is divided into m or 4 code words, each code word being n=148 bytes. The resynchronizing pattern portions (46) are added to the data train for every m.times.3=12 bytes of data to be recorded, and serves to recover data synchronization in the event that data synchronization is missed. Each code word having a check data portion (45) is capable of correcting errors of T bytes, and errors generated in each code word by missing of data synchronization can be corrected.

REFERENCES:
patent: 3765005 (1973-10-01), Cannon
patent: 4315283 (1982-02-01), Kinjo et al.
patent: 4375100 (1983-02-01), Tsuji et al.
"Mass Storage Optical Disk File Apparatus Capable of Recording Code Information", Yoshito Sumida et al., Nikkei Electronics (Japanese Periodical), Nov. 21, 1983, pp. 189-213.

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