Multiple-frequency programmable transmitter
First Claim
Patent Images
1. A programmable transmitter having an assertable switch, the programmable transmitter comprising:
- a receiver operative to resolve a code in a received signal that has a frequency that is unresolved by the receiver but is one of a plurality of preselected frequencies;
a memory operative to program the transmitter by storing the code;
a transmitter operative, upon assertion of the switch, to transmit the code stored in said memory at each of the plurality of preselected frequencies.
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Abstract
A programmable transmitter includes a receiver for receiving a coded signal at a desired frequency. The code is stored in memory during a learning mode and is then retransmitted sequentially at a plurality of frequencies, including said desired frequency. During this time, the operator observes the device to be operated and indicates to the transmitter when the controlled device performs the desired function, i.e., when the desired frequency is transmitted. At that time, the operator presses a button on the transmitter, and the transmitter stores the most recently transmitted frequency.
92 Citations
22 Claims
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1. A programmable transmitter having an assertable switch, the programmable transmitter comprising:
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a receiver operative to resolve a code in a received signal that has a frequency that is unresolved by the receiver but is one of a plurality of preselected frequencies; a memory operative to program the transmitter by storing the code; a transmitter operative, upon assertion of the switch, to transmit the code stored in said memory at each of the plurality of preselected frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for programming a transmitter having a memory and an assertable switch, the method including the steps of:
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(a) placing the transmitter in a learn mode; (b) transmitting a code at a desired frequency from a different transmitter to the transmitter; (c) programming the transmitter by storing the code in the memory; and (d) upon assertion of the switch transmitting said code from said transmitter at a plurality of preselected frequencies including said desired frequency, without the transmitter resolving the desired frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A programmable transmitter having a learn mode and an operating mode comprising:
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a plurality of user-input switches; a receiver operative to resolve codes in received signals at any of a plurality of frequencies without resolving the frequency of a received signal; a memory operative to store said codes received by said receiver and associating each said code with one of said user-input switches; a transmitter operative to transmit each said code stored in said memory at each of said plurality of frequencies sequentially and associating a most recently transmitted frequency of said plurality of frequencies with each said code upon receiving a feedback signal; and said transmitter being further operative to transmit one of said codes at its associated frequency upon activation of said associated user-input switch. - View Dependent Claims (20, 21, 22)
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Specification