Videotex terminal for receiving telecopies

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

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379 98, 379 96, H04M 1100

Patent

active

050602578

ABSTRACT:
A videotex terminal capable of receiving telecopies is disclosed, comprising a printing device at the output of its modem for printing fixed images in response to graphic data from a source connected to the telephone network, and the procedure for communicating the graphic data comprises protocol phases, during which the terminal and the source exchange questions and answers in the form of data transmitted at a first speed via the modem used alternately in one direction and in the other, and transfer phases, during which a flow of graphic data is transmitted by the modem, at this first speed, from the source to the terminal and data for regulating said flow are transmitted by the modem, at a second speed, from the terminal to the source.

REFERENCES:
patent: 4496943 (1985-01-01), Greenblatt
patent: 4581484 (1986-04-01), Bendig
patent: 4600808 (1986-07-01), Cosentino et al.
patent: 4707849 (1987-11-01), Rault et al.
patent: 4739402 (1988-04-01), Maeda et al.
patent: 4814972 (1989-03-01), Winter et al.
patent: 4896347 (1990-01-01), Auber
patent: 4910506 (1990-03-01), Yoshida et al.
Electrical Communication, vol. 62, Nov. 2, 1988, pp. 184+, "Videotex Access oint DPV105" by M. Fournier.
British Telecommunication Engineering, vol. 5, Jan. 87, pp. 273-275, Merlin Tonto.
Communication & Transmission No. 2--1987, "The Agora Telematic Terminal", pp. 57+.
Communication & Transmission, vol. 9, No. 2, 1987, pp. 57-60, Paris, France.
Patent Abstracts of Japan, vol. 6, No. 238 (E-144)(1116), Nov. 26, 1982.

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