Minimum space digital storage of analog information

Details Minimum space digital storage of analog information Minimum space digital storage of analog information

1979-01-02

1981-07-21

Shaw, Gareth D.

Boots, shoes, and leggings

179 1VC, 179 1555T, G06F 300, H03K 1302

Patent

active

042801923

ABSTRACT:
Analog or digital information, for example an audio input, is converted to a digital representation and encoded prior to storage in a digital form for minimizing the space required for storage of the digital information. Pauses are eliminated and encoded in a form indicating the occurrence of the pauses. Data is compared with prior received data such as to detect repetition. When repetition is detected, a code indication of the period of repetition and the duration of repetition is inserted in the stored data. Information is restored utilizing decoding networks responsive to the inserted codes which cause reinsertion of the pauses and repetitions. Also, when the information is restored, background audio may be provided in the silent periods either from a separate memory or, when available, from an audio input circuit.

REFERENCES:
patent: 3104284 (1963-09-01), French et al.
patent: 3462555 (1969-08-01), Presti
patent: 3851106 (1974-11-01), Jacobaeus
patent: 3976844 (1976-08-01), Betz
patent: 4053712 (1977-10-01), Reindl
Boies, S. J. et al., "Encoding and Decoding of Digital Speech", IBM Tech. Dis. Bull., vol. 19, No. 6, Nov. 1976, pp. 2357-2358.

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