Encoding and decoding of digital recordings

Details Encoding and decoding of digital recordings Encoding and decoding of digital recordings

1978-11-20

1981-10-27

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

360 51, G11B 509

Patent

active

042977290

ABSTRACT:
In television games programs may be stored on tape, disc or similar to change a basic games unit to different games or other entertainment or instruction. The data is transferred from the recording medium to a processor and clocked in at a suitable rate. The invention provides generation of clock pulses using two counters. The arrangement generates clock pulses at a predetermined position of data 1's but for 0's it generates clock pulses a predetermined interval after the preceding pulse. An arrangement is provided recording staggered data on two tracks of a tape to counter drop outs and a watermark code is provided to guard against use of unauthorized programs.

REFERENCES:
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patent: 4024379 (1977-05-01), Pfost et al.
patent: 4027152 (1977-05-01), Brown et al.
patent: 4167760 (1979-09-01), Decker

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