Communications: electrical – Continuously variable indicating – With meter reading
Patent
1989-07-27
1991-01-29
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34082531, 341176, H04B 700, H04B 1000
Patent
active
049889923
ABSTRACT:
A system for establishing a code and controlling operation of equipment. This system includes a first transmitter including a random code generator and a memory for storing the randomly generated code, as well as a transmitter for providing a radio frequency signal carrying that code. The system furthermore includes a transceiver including a receiver for the siganl generated by the first transmitter and a memory for storing the code carried by that signal. The transceiver includes a second transmitter for transmitting a radio frequency signal carrying the code. This system also includes a remote receiver unit for connection to the equipment to be controlled. This remote receiver unit has a receiver for the radio frequency signal transmitted by either the first transmitter or the transceiver and a memory for storing that random code carried by the signal. The remote receiver also includes a comparator for comparing a code carried by a radio frequency signal with the code stored in the memory of the remote reciever unit. The remote receiver unit also includes an actuator for causing operation of the equipment if the receiver code matches the stored code. A method of using the system is also disclosed.
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Heitschel Carl T.
Reich Paul W.
Magistre Dervis
The Chamberlain Group, Inc.
Yusko Donald J.
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