Apparatus for baseline restoration in an AC-coupled signal

Details Apparatus for baseline restoration in an AC-coupled signal Apparatus for baseline restoration in an AC-coupled signal

1977-06-17

1978-11-14

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307264, 328127, 328165, 358 34, H04B 110, H03K 500

Patent

active

041258126

ABSTRACT:
Apparatus for baseline restoration in an AC-coupled signal is comprised of a differentiation circuit followed by an integration circuit to receive the signal and continually restore its DC reference. Both circuits are initially set to the DC reference, and reset after a lapse of some predetermined period based upon the worst case signal-to-noise ratio anticipated for the system. Transmission is terminated, or interrupted, before resetting. A header may be used to signal resumption of transmission to the apparatus in an asynchronous receiving mode. In a synchronous receiving mode, the transmission is simply interrupted at each time the apparatus is reset.

REFERENCES:
patent: 3936759 (1976-02-01), Macheel

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