Picture image communication apparatus

Details Picture image communication apparatus Picture image communication apparatus

1992-07-09

1995-05-23

Rogers, Scott A.

Facsimile and static presentation processing

Facsimile

Facsimile system interface

358434, 370 601, 3701101, 379 93, 379100, H04N 132

Patent

active

054186250

ABSTRACT:
In a picture image communication apparatus having: an ISDN interface for communicating with an ISDN line; a PSTN interface for communicating with an PSTN line; and an ISDN supervisor responsive to the ISDN interface for detecting a status of the ISDN line, for transmitting a video signal indicative of a video image in G3 mode through either of the ISDN line and the PSTN line which is selected in accordance with a command signal, the improvement comprises: a controller for, in the absence of the command signal, judging the status in response to the ISDN supervisor; transmitting the video signal through the ISDN line using the ISDN interface when the status indicates that the ISDN line is usable; for transmitting the video signal through the PSTN line using the PSTN interface when the status indicates that the ISDN line is unusable. It may further comprises a scanner for scanning the video image and for producing the video signal. It may further comprises an interface for receiving the video signal externally.

REFERENCES:
patent: 4888766 (1989-12-01), Ogasawara
patent: 5034948 (1991-07-01), Mizutani et al.
patent: 5113396 (1992-05-01), Kagami

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