Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1995-04-03
1996-12-10
Kim, W. Chris
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 53, G11B 509
Patent
active
055837077
ABSTRACT:
In a digital video tape recorder that has rotary magnetic heads for recording digital video information on a magnetic tape in the form of data blocks having a predetermined length, an ID signal is generated for each data block. The ID signal includes a number of data bits which identify the address of the data block, the information contained in the data block, and so forth. For the purpose of generating error code parity symbols, the ID signal is divided into a sequence of four-bit symbols, and at least two parity symbols are generated according to an error correction code for correcting errors in the sequence of four-bit symbols. The ID signal and parity symbols are recorded together on the magnetic tape. In this way, error correction can be performed on the ID signal during reproduction.
REFERENCES:
patent: 4937686 (1990-06-01), Arai et al.
patent: 5396374 (1995-03-01), Kubota et al.
patent: 5404249 (1995-04-01), Seki
patent: 5416651 (1995-05-01), Uetake et al.
Frommer William S.
Kim W. Chris
Sinderbrand Alvin
Sony Corporation
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