Telephonic communications – Centralized switching system – Switching apparatus for connecting calling line to...
Patent
1996-11-12
2000-07-18
Hong, Harry S.
Telephonic communications
Centralized switching system
Switching apparatus for connecting calling line to...
379 9001, 37911001, 379267, 379424, H04M 351, H04M 108
Patent
active
060918128
ABSTRACT:
An apparatus and method are disclosed for connecting a headset alternately to a telephone line and an audio device. The apparatus includes an audio connector for connecting the apparatus to the audio device, a telephone connector for connecting the apparatus to the telephone line, and a headset connector for connecting the apparatus to the headset. The apparatus also includes a switching circuit connected to the audio, telephone and headset connectors. The switching circuit connects the telephone connector to the headset connector in response to sensing a voltage greater than a predetermined threshold on the telephone line. When the voltage sensed returns to a value less than the predetermined threshold value, the switching circuit reconnects the headset connector to the audio connector.
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patent: 5694467 (1997-12-01), Young, III
Iglehart David
Jreij Elie Antoun
Lester Leland
Levene William E.
Truong Luc
Hong Harry S.
Siemens Information and Communication Networks Inc.
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