Anti-interference relay device for signal transmission
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United States of America Patent
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Dec 6, 2005
Grant Date -
Sep 30, 2004
app pub date -
Mar 28, 2003
filing date -
Mar 28, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An anti-interference relay device has a receiving module and a transmitting module. The receiving module modulates a received IR signal from a remote controller and an identification (ID) code of the receiving module to an RF signal and then broadcasts the RF signal. When the RF signal is demodulated by the transmitting module, the demodulated ID code is compared with a preset ID code. If the two ID codes are matched, the demodulated IR signal is allowed to output to control an appliance, otherwise the IR signal is ignored.
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