Communication method and communication terminal apparatus capabl

Details Communication method and communication terminal apparatus capabl Communication method and communication terminal apparatus capabl

1996-02-13

1998-05-12

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Auxiliary signal

358434, 358438, 358439, 358401, H04N 100

Patent

active

057514410

ABSTRACT:
This invention is related to a communication terminal device and communication method for communicating with another terminal device in a full duplex manner or a half duplex manner depending upon a function of the another terminal device. A new recommendation V.8 of the International Telecommunication Union was established as a data transmission method for use in telephone exchange networks. This V.8 is suitable for use with telephone sets and data modems and not only facsimile devices. Devices which are in accordance with this new recommendation V.8 will be put on the market in the near future. Presently, half-duplex facsimile devices also exist thus functions which cope with half-duplex communication are also necessary. This invention, while being a terminal device basically adapted for the recommendation V.8, proposes a terminal device that can communicate with previously used half-duplex terminal devices, and a terminal device using that communication method.

REFERENCES:
patent: 5172246 (1992-12-01), Yoshida
patent: 5237429 (1993-08-01), Zuiss et al.
patent: 5351134 (1994-09-01), Yaguchi et al.
patent: 5359644 (1994-10-01), Tanaka et al.
patent: 5636037 (1997-06-01), Saitoh

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