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Radio frequency controlled light system

  • US 4,355,309 A
  • Filed: 09/08/1980
  • Issued: 10/19/1982
  • Est. Priority Date: 09/08/1980
  • Status: Expired due to Term
First Claim
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1. A remote control light system for controlling the power applied to an electrical light source, comprising:

  • a battery operated transmission unit having a radio frequency oscillator for transmitting a radio frequency control signal;

    a receiving unit energized by a power supply connected to the power source for energizing the electrical light, said receiving unit having an antenna and a radio frequency receiver for detecting signals transmitted from said transmission unit;

    switching means located in said transmission unit for selecting the on/off control state for the electrical light attached to the receiving unit;

    reprogrammable encoding means for selecting a receiver unit address code to be broadcast by said radio frequency oscillator;

    reprogrammable encoding means for selecting the output address code of a receiving unit;

    means for digitally encoding the control state signal from said switching means, receiver unit address code and output address code and pulse modulating said encoded data for transmission by said radio frequency oscillator to broadcast said encoded data to said receiver unit;

    means for said receiving unit to decode a signal detected by said antenna and radio frequency receiver;

    reprogrammable encoding means in said receiving unit for selecting a receiver unit address code to match the receiver unit address code set in said transmission unit;

    reprogrammable encoding means in said receiving unit for selecting an output address of said receiver to match an address set in said transmission unit;

    means for comparing said transmitted receiver unit and output address code with said receiver unit code and output address code encoded in said receiver;

    means for setting a latch with the on/off control signal from said digital decoder in response to said comparing means indicating said transmitted receiver unit address code and output address code is equivalent to the receiver unit address and output address code preset in said receiver; and

    a relay settable in response to an output signal from a said latching means for connecting or disconnecting an electrical light to a power supply.

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