System for recording digital information in a pulse-length modul

Details System for recording digital information in a pulse-length modul System for recording digital information in a pulse-length modul

1985-10-02

1990-04-10

Richardson, Robert L.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

358342, 360 331, 360 39, H04N 576, G11B 700

Patent

active

049166867

ABSTRACT:
An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

REFERENCES:
patent: 3701846 (1972-10-01), Zenzefilis
patent: 4022986 (1977-05-01), Teer
patent: 4094013 (1978-06-01), Hill
patent: 4161753 (1979-07-01), Bailey et al.
patent: 4210931 (1980-07-01), Bailey et al.
patent: 4222072 (1980-09-01), Bailey et al.

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