Modulator and demodulator (MODEM)

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

Reexamination Certificate

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Details

C358S400000, C358S404000, C375S222000

Reexamination Certificate

active

07006261

ABSTRACT:
A MODEM can shorten the processing time of an interface disposed between a data terminal equipment (DTE) and the MODEM. The MODEM stores an object program of a procedure in a memory and switches an operational mode of the MODEM automatically corresponding to the prescribed procedure thereby executing the procedure corresponding to the current operational mode. The MODEM further comprises a timer which monitors the transits time between a completed procedure and the next procedure, and the MODEM starts the process of a specified operational mode based on a mode-setting-instruction of the procedure as well as monitoring the transitions time by using the timer, and executing a next specified operational mode when the timer times out, thereby allowing the MODEM to perform the various operational mode switches.

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patent: 0 499 763 (1992-08-01), None
WO 92 11593 A, dated Jul. 9, 1992.
Partial European Search Report, (EP 96 30 4413) dated Jan. 15, 2001 (2).

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