Visual telephone system and method capable of controlling the use of a telephone line
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 26, 2000
Grant Date -
N/A
app pub date -
Jul 8, 1997
filing date -
Jul 8, 1996
priority date (Note) -
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Abstract
A visual telephone system is disclosed which comprises a modem for transmitting and receiving video and voice signals so as to perform a visual communication via a telephone line connected therewith, a telephone hand set for a voice communication via the telephone line connected therewith, a detecting unit for detecting whether or not the telephone line is busy and generating a line state detection signal, a control unit for controlling the modem to be enabled in response to the line state detection signal and generating a switch control signal in response to a specific key entry, a switch for selectively connecting the telephone line to either the modem or the telephone hand set, and a message storage unit for storing a message so as to provide the message on a display or a speaker in response to the line state detection signal.
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