The Chamberlain Group, Inc.

Bernard J Wojciak

James Joseph Fitzgibbon

Gregory James Holderfield

Robert Roy Keller, Jr

Loren E Doppelt

Thomas A Brookbank

Jean-Michel Robert Rotharmel

Hung Nguyen

Richard James Novy

A system and method for actuating a moveable barrier operating system. A wireless time signal at a receiver. A time-of-day signal is supplied at the output of the receiver. The receiver is automatically reset using the wireless time signal when the time-of-day signal is different than the time represented by the wireless time signal. A moveable barrier is actuated using the time-of-day signal at the output of the receiver.

System and method of actuating a movable barrier operator

A wireless transmit-only apparatus () has a controller () that responds to a user interfaceby correlating specific user input with a corresponding characterizing transmission parameter(s) as is stored in a memory () and by selecting a corresponding resonant device (and). The latter devices serve to drive the PLL control input of a phase locked loop () to thereby influence the transmission carrier frequency of a wireless transmitter (). In a preferred embodiment, at least one of the resonant devices comprises a mechanically resonant device such as a surface acoustic wave device, a crystal resonator, or a ceramic resonator.

Wireless transmit-only apparatus and method

A receiver capable of receiving a plurality of different codes at a plurality of different frequencies is set forth herein. The receiver offers digital frequency control by using a controller driven signal diode to add or remove capacitance to or from a band pass filter circuit, thereby altering the frequency the bandpass filter is setup to receive. Input devices allow the receiver code, bit pattern, and relay output to be selected among a plurality of different codes, bit patterns, and relay output types. The receiver processes the selections, determines what frequency receiver actuation signal is to be received, and alters the bias of the signal diode to adjust the bandpass filter frequency accordingly.

Method and apparatus for receiving a plurality of different codes at a plurality of different frequencies

Remote control transmitter

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Naperville, IL, United States of America

Bernard J Wojciak