Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal
Reexamination Certificate
2005-09-06
2005-09-06
Isen, Forester W. (Department: 2644)
Telephonic communications
Substation or terminal circuitry
For loudspeaking terminal
C379S424000
Reexamination Certificate
active
06940968
ABSTRACT:
A telephone apparatus comprises a first audio input device, a second audio input device, a first audio output device, and a second audio output device. The telephone apparatus is operative to couple the first audio input device and the first audio output device to a first telephone line. In response to a first signal, the coupling between the first audio input device and the first telephone line is modified, and the second audio input device and the second audio output device are coupled to a second telephone line.
REFERENCES:
patent: 2561950 (1951-07-01), Shenk
patent: 4004107 (1977-01-01), Herlacher
patent: 4133985 (1979-01-01), Rasmussen et al.
patent: 4497980 (1985-02-01), Gorman et al.
patent: 4536621 (1985-08-01), Bergen et al.
patent: 4650931 (1987-03-01), Tsukada et al.
patent: 4756021 (1988-07-01), Nakayama
patent: 4901346 (1990-02-01), Erving
patent: 5195087 (1993-03-01), Bennett et al.
patent: 5559880 (1996-09-01), Shiono
patent: 5572575 (1996-11-01), Yamamoto et al.
patent: 5588041 (1996-12-01), Meyer et al.
patent: 5590414 (1996-12-01), Marui et al.
patent: 5764743 (1998-06-01), Goedken et al.
patent: 5991398 (1999-11-01), Lipton et al.
patent: 6069943 (2000-05-01), David et al.
Gourdine Robert Derrick
Lipton Marc Ira
Brinks Hofer Gilson & Lione
Isen Forester W.
SBC Properties L.P.
Swerdlow Daniel
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