Method and apparatus for encoding digital data so as to reduce t

Details Method and apparatus for encoding digital data so as to reduce t Method and apparatus for encoding digital data so as to reduce t

1981-05-04

1983-11-08

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

360 40, 371 57, 375 76, G11B 700, G11B 509

Patent

active

044146590

ABSTRACT:
An encoding system in which starting from the Miller code a specific word type in the bit series is detected and two bits within said word type are encoded in a different manner in order to obtain an information signal without d.c. component. Moreover, an encoding device, a record carrier provided with such an information signal and a read apparatus provided with a suitable decoding device are described.

REFERENCES:
patent: 3810111 (1974-05-01), Patel
patent: 3905029 (1975-09-01), McIntosh
patent: 4027335 (1977-05-01), Miller
patent: 4183066 (1980-01-01), Anderson
patent: 4227184 (1980-10-01), Howells et al.
patent: 4234897 (1980-11-01), Miller
patent: 4326282 (1982-04-01), Verboom et al.
"Optimal Codes for Digital Magnetic Recording"; Mallinson et al, Radio and Electronic Engr. vol. 47, No. 4 pp. 172-176 Apr. 1977.

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