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FM Signal demodulator
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Integrated oscillator antenna for low power, low harmonic radiation
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Garage door operator with gas sensor
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Data communication system for activating remote loads
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Decoder circuitry for selectively activating loads
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Operator motor control
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Digital encoder for door operator
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Operator motor control
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Two-terminal control circuit and power supply
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Modulated subcarrier control circuit responsive to a voltage having a pass frequency and exceeding a predetermined level for a predetermined time
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Portable transmitter structure
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