Infrared receiver circuit
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United States of America Patent
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Jun 3, 2014
Grant Date -
Oct 6, 2011
app pub date -
Nov 9, 2009
filing date -
Nov 26, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to an infrared receiver circuit for receiving a carrier-modulated infrared signal that comprises a carrier signal and a wanted signal modulated onto the carrier signal, having a band pass filter that exhibits a frequency adjustment connection via which the band center frequency of the band pass filter can be adjusted, furthermore having a demodulator for recovering the wanted signal and having a signal output to which the demodulated wanted signal can be output. The infrared receiver circuit exhibits a signal input that is at least indirectly connected to the frequency adjustment connection of the band pass filter so that the band center frequency of the band pass filter can be adjusted by a clock signal of an external clock pulse generator.
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