H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/4
H04N 1/327 (2006.01)
Patent
CA 1133630
Abstract of the Disclosure The invention relates to a receiving facsimile unit for reproducing dark-light variations on a copy medium re- presenting a facsimile of a remotely located document at a transmitting unit. The receiving unit includes a writer for reproducing dark-light variations on a copy medium. It also includes a demodulator for demodulating received sig- nals representing the dark-light variations, the demodulator being coupled to the writer. The demodulator generates a handshake signal for transmission to the transmitting unit. The handshake signal is transmitted in predetermined inter- vals during transmission of a document in which the received signals are absent. Preferably, the handshake signals are of short duration as compared with each of the intervals.
323235
Exxon Research And Engineering Company
Swabey Ogilvy Renault
LandOfFree
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