Modem end of message detector

Details Modem end of message detector Modem end of message detector

1983-01-03

1985-01-15

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375113, H03K 520

Patent

active

044942400

ABSTRACT:
In modem apparatus having receiver circuitry which demodulates a received carrier into a sequence of received signals and decodes each signal into a signal point drawn from a predetermined signal point alphabet, the received carrier being modulated in accordance with a sequence of signal points representing a message, that improvement having circuitry for estimating the receipt of the end of the message by testing each received signal against a predetermined end-of-message condition.

REFERENCES:
patent: 3431559 (1969-03-01), Webb
patent: 3566280 (1971-02-01), Emmons et al.
patent: 3978407 (1976-08-01), Forney, Jr. et al.
patent: 3991379 (1976-11-01), Chadwick et al.
patent: 4001693 (1977-01-01), Stackhouse et al.
patent: 4044307 (1977-08-01), Borysiewicz et al.
patent: 4088833 (1978-05-01), Godard et al.
patent: 4343041 (1982-08-01), Forney, Jr.

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