Method of and device for recording information, record carrier,

Details Method of and device for recording information, record carrier, Method of and device for recording information, record carrier,

1991-01-30

1991-09-10

Canney, Vincent P.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

360 40, G11B 576, G11B 509

Patent

active

050480030

ABSTRACT:
A method is revealed for recording an information signal (Vi) on a record carrier (1). The information signal (Vi) is converted into code words (200), which comprise a variable number of bits of a first logic value ("1") and a variable number of bits of a second logic value ("0"). The number of successive bits of the first logic value ("1") is at least equal to P. The number of successive bits of the second logic value, situated between the bits of the first logic value, is at least equal to Q, Q being greater than P. A pattern of recording marks (8;54) corresponding to the code signal (Vc) is recorded on the record carrier (1) in such a way that bits of the first logic value ("1") are represented by recording marks (8;54). Moreover, an information recording device (FIG. 17), an information read device, and a decoding device (FIG. 18) are revealed.

REFERENCES:
patent: 4146909 (1979-03-01), Beckenhauer et al.
patent: 4496934 (1985-01-01), Furukawa
patent: 4502036 (1985-02-01), Furukawa
patent: 4549167 (1985-10-01), Kato et al.
patent: 4677421 (1987-06-01), Taniyama et al.

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