Minimum space digital storage of analog information

G - Physics – 11 – C

Patent

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352/34, 354/68

G11C 7/00 (2006.01)

Patent

CA 1168360

MINIMUM SPACE DIGITAL STORAGE OF ANALOG INFORMATION Abstract of the Disclosure 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.

368818

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