Minimum group pulse code modem having shape and amplitude codes

Details Minimum group pulse code modem having shape and amplitude codes Minimum group pulse code modem having shape and amplitude codes

1978-06-21

1980-05-20

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

332 11D, H03K 1322

Patent

active

042041635

ABSTRACT:
A transmission system which on the transmission side comprises a pulse-code modulation device, which is adapted for the pulse code conversion of consecutive minimum groups of two signal, elements of the information signal, the pulse code modulation device comprises a shape encoder, which in each group interval, encodes by a pulse code a normalized-amplitude shape of the signal variation of the two signal elements, and furthermore comprises an amplitude encoder, which in each group interval, encodes an associated amplitude value by a pulse code. The receiver comprises a multiplier stage for multiplication of the normalized-amplitude shape, which is transmitted in pulse code, in each group interval, by the associated amplitude value.

REFERENCES:
patent: 3414677 (1968-12-01), Quinlan
patent: 3705359 (1972-12-01), Kappes

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