Communicating apparatus and program

Details Communicating apparatus and program Communicating apparatus and program

2008-07-15

2008-07-15

Poon, King Y. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Communication

C358S001130, C358S435000, C358S436000, C379S100010, C379S100150

Reexamination Certificate

active

07400426

ABSTRACT:
It is an object to provide a communicating apparatus and its program in which in the case where the RTC pattern or the RCP frame cannot be received due to the noises or in the case where a modem diverges and data cannot be normally demodulated, a procedure signal can be certainly detected, the modem can advance to a low-speed mode, and a possibility of a communication error can be remarkably reduced. During the image reception, both a carrier of V.21ch2 modulation and data signal quality (EQM) in a high-speed mode are, in parallel, monitored. When the data signal quality (EQM) deteriorates to a value larger than or equal to a predetermined threshold value and the carrier of the V.21ch2 modulation is detected, the modem advances to the low-speed mode and the procedure signal is received.

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patent: 7006261 (2006-02-01), Mizutani et al.
patent: 2002/0136195 (2002-09-01), Kurtz
patent: 07162644 (1995-06-01), None
patent: 10-248006 (1998-09-01), None
patent: 10-308863 (1998-11-01), None
patent: 11-261785 (1999-09-01), None

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