Digital signal time scale inversion

Details Digital signal time scale inversion Digital signal time scale inversion

1977-02-03

1978-03-21

Malzahn, David H.

Boots, shoes, and leggings

364728, G06F 700, G06F 1534

Patent

active

040806600

ABSTRACT:
A system for digital signal processing, including a random access memory (RAM) accessed by counters and used for storing and shifting signals in a convolver, correlator, matched filter or multiplier. An input signal and a reference signal are applied from opposite ends of the device such that the signals scan past each other at a relative velocity with respect to each other for obtaining either the convolution or correlation function of signals. The RAM operates as a shift register delay line and provides time scale inversion of signals when desired.

REFERENCES:
patent: 3748451 (1973-07-01), Ingwersen
patent: 3774019 (1973-11-01), Cook

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