Apparatus, method and program for communication

Details Apparatus, method and program for communication Apparatus, method and program for communication

2007-12-25

2007-12-25

Moe, Aung S. (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S001150, C358S001900, C358S442000, C358S402000, C379S100170, C379S093240, C379S406080, C379S406100

Reexamination Certificate

active

10600433

ABSTRACT:
Facsimile communication is correctly performed even when an echo is generated in a communication line having a delay, by handling an echo signal in such a manner that when an echo of a CFR signal (according to the ITU-T recommendation V.21) transmitted from a receiving communication apparatus is received by the receiving communication apparatus, the echo signal is not recognized as a carrier of a picture signal and training data is not adjusted on the basis of the received echo signal, thereby making it possible to receive a correct short training/picture signal which arrives thereafter. A facsimile communication procedure includes storing training information when long training information is received, detecting success in receiving short training information, detecting high-speed data, setting the stored training information into the modem, and changing the receiving operation in response to detection of short training information and high speed data.

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