Wireless transmit-only apparatus and method
DCFirst Claim
Patent Images
1. A movable barrier operator remote control transmitter comprising:
- at least one assertable user input;
a memory containing a plurality of remote control commands for a plurality of different movable barrier operators, wherein at least some of the remote control commands comprise a corresponding transmission frequency that is different from other of the remote control commands;
correlation data that correlates the at least one assertable user input with a corresponding one of the plurality of remote control commands and hence with a corresponding transmission frequency;
a controller that is operably coupled to the at least one assertable user input, the memory, and the correlation data and having a transmission frequency selection output;
a wireless transmitter that is responsive to the transmission frequency selection output of the controller and having at least one selectively-variable output frequency phase locked loop.
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Abstract
A wireless transmit-only apparatus (20) has a controller (21) that responds to a user interface 25 by correlating specific user input with a corresponding characterizing transmission parameter(s) as is stored in a memory (35) and by selecting a corresponding resonant device (31 and 32). The latter devices serve to drive the PLL control input of a phase locked loop (23) to thereby influence the transmission carrier frequency of a wireless transmitter (22). 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.
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Citations
11 Claims
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1. A movable barrier operator remote control transmitter comprising:
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at least one assertable user input; a memory containing a plurality of remote control commands for a plurality of different movable barrier operators, wherein at least some of the remote control commands comprise a corresponding transmission frequency that is different from other of the remote control commands; correlation data that correlates the at least one assertable user input with a corresponding one of the plurality of remote control commands and hence with a corresponding transmission frequency; a controller that is operably coupled to the at least one assertable user input, the memory, and the correlation data and having a transmission frequency selection output; a wireless transmitter that is responsive to the transmission frequency selection output of the controller and having at least one selectively-variable output frequency phase locked loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification