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

1992-09-21

1993-10-12

Richardson, Robert L.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

358342, 3582611, 369125, 360 331, H04N 576, G11B 700

Patent

active

052532445

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: 563148 (1896-06-01), Essick
patent: 3281806 (1966-10-01), Lawrence
patent: 3587090 (1971-06-01), Labeyrie
patent: 3689899 (1972-09-01), Franaszek
patent: 3808362 (1974-04-01), Tsuda et al.

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