Signal combining system for binary pulse signals

Details Signal combining system for binary pulse signals Signal combining system for binary pulse signals

1975-06-13

1977-07-05

Sloyan, Thomas J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

179 15R, H04J 316

Patent

active

040344045

ABSTRACT:
A signal combining system employed for transmitting a plurality of pulse signals, in which if binary information of the same polarity is continuously transmitted for a period of time, in comparison with the last bit of the preceding period of time, in a main input communication circuit such as a facsimile circuit, signal combining is effected to insert therein other prestored binary information from another communication circuit. The above signal combining is performed for information blocks, each of which includes at least one sign bit for distinguishing pulse signals of the main communication circuit and another communication circuit from one another.

REFERENCES:
patent: 3270321 (1966-08-01), Berkowitz
patent: 3311707 (1967-03-01), Urquhart-Pullen
patent: 3644680 (1972-02-01), Amano et al
patent: 3660605 (1972-05-01), Rees

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