RF converter having multiple AV/S terminals
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United States of America Patent
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-
Dec 21, 2004
Grant Date -
Jul 17, 2003
app pub date -
Jan 15, 2002
filing date -
Jan 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention has multiple AV/S terminals, an RF modulator, a S/AV signal converter and multiple switches. The switches connect the AV/S terminals with the RF outputs to allow the AV/S signal from the special AV/S terminal input into the RF modulator to be converted to an RF-signal input to the ANT terminal of the TV. Besides, the present invention further has an ANT input with an electronic switch and a detecting unit having a driver, which decides whether the electronic switch turns on. If the detecting unit detects no AV-signal or S-signal input from the AV/S terminals, the detecting unit first cuts off the power to the RF modulator and then makes the electronic switch turn on. The RF-signal from the ANT input is output to the RF output.
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