Communication apparatus

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

Reexamination Certificate

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Details

C379S093090

Reexamination Certificate

active

07092499

ABSTRACT:
Disclosed is a communication apparatus connected to an analog public line, which can be actualized at low costs and can save its space. This communication apparatus includes a first communication means connected to a telephone line, for performing communications, and a connecting means for connecting a second communication means connected to the telephone line via the first communication means and thus performing communications. In this communication apparatus, the first communication means has a first switch means for connecting the telephone line to the first communication means or the second communication means, a first route means for connecting the second communication means to the telephone line via the first switch means, a second route means for connecting the second communication means directly to the telephone line, a second switch means for connecting the second communication means to the first route means or the second route means, a first hook detecting means connected to the first route means, and a second hook detecting means connected between the telephone line on the second route means and the second switch means.

REFERENCES:
patent: 5187736 (1993-02-01), Moriizumi
patent: 5444771 (1995-08-01), Ohnishi
patent: 5644633 (1997-07-01), Kaufeld et al.
patent: 6005675 (1999-12-01), Maeda et al.
patent: 6311233 (2001-10-01), Nishioka et al.
patent: 6366363 (2002-04-01), Harada et al.
patent: 6408057 (2002-06-01), Lee et al.
patent: 6442252 (2002-08-01), Fujise et al.
patent: 2002/0015181 (2002-02-01), Murata et al.
patent: 2003/0084122 (2003-05-01), Saito
patent: 1-129649 (1989-05-01), None
patent: 3055343 (2000-04-01), None

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