Infrared repeater
First Claim
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1. An IR repeater comprising:
- a receiver section, for receiving an IR light signal representing a coded signal modulated by a modulating signal;
a first IR detector coupled to said receiver section for detecting said IR light signal and generating a signal representing said coded signal;
a fixed-frequency oscillator, for generating a transmitter modulating signal, said fixed-frequency oscillator generating said transmitter modulating signal at a predetermined frequency independent of the frequency of the received modulating signal; and
a transmitter section, for generating an output IR light signal representing said detected coded signal modulated by said transmitter modulating signal.
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Abstract
An IR repeater is disclosed which is resistant to CFL interference. The IR repeater includes a receiver section for receiving an IR light signal representing a coded signal modulated by a modulating signal, and for detecting the coded signal. An oscillator generates a transmitter modulating signal, and a transmitter section, coupled to the receiver section and the oscillator, generates an IR light signal representing the detected coded signal modulated by the transmitter modulating signal.
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Citations
19 Claims
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1. An IR repeater comprising:
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a receiver section, for receiving an IR light signal representing a coded signal modulated by a modulating signal; a first IR detector coupled to said receiver section for detecting said IR light signal and generating a signal representing said coded signal; a fixed-frequency oscillator, for generating a transmitter modulating signal, said fixed-frequency oscillator generating said transmitter modulating signal at a predetermined frequency independent of the frequency of the received modulating signal; and a transmitter section, for generating an output IR light signal representing said detected coded signal modulated by said transmitter modulating signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An IR repeater comprising:
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a receiver section, for receiving an IR light signal representing a coded signal modulated by a modulating signal; a first IR detector coupled to said receiver section for detecting said IR light signal and generating a signal representing said coded signal; an oscillator, for generating a transmitter modulating signal; and a transmitter section, for generating an output IR light signal representing said detected coded signal modulated by said transmitter modulating signal; further including a second IR detector, each of said first and second detectors detecting the IR light signal and generating a signal representing said coded signal; said received modulating signal has a frequency within a range of frequencies having a lower end frequency and an upper end frequency; said first IR detector is tuned to a center frequency substantially near said lower end frequency; and said second IR detector is tuned to a center frequency substantially near said upper end frequency. - View Dependent Claims (19)
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Specification