Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy
Patent
1987-03-31
1989-04-18
George, Keith E.
Telephonic communications
Telephone line or system combined with diverse electrical...
To produce visual-graphic copy
379 93, 375 5, H04M 1100
Patent
active
048233757
ABSTRACT:
A data communication apparatus has a data communication unit for performing a data communication; a speech unit for performing communication; an output unit for outputting a signal received from a partner station; and a control unit for judging if there is a possibility of communication by the partner and controlling the output unit based on the judgment result.
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patent: 4532377 (1985-07-01), Zink
patent: 4578537 (1986-03-01), Faggin et al.
Witt, "Switchbox For Voice/Data Communication", IBM Tech. Disclosure Bulletin, vol. 14, No. 5, Oct. 1971.
Canon Kabushiki Kaisha
George Keith E.
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