Transmitter for operating rolling code receivers
First Claim
Patent Images
1. A transmitter-receiver system comprising:
- a rolling code receiver that generates a sequence of unique codes based on a rolling code algorithm; and
a fixed code transmitter including a memory that contains a set of fixed codes, said fixed code transmitter operable to transmit one or more codes of the set of fixed codes to operate the rolling code receiver, wherein the set of fixed codes has fewer codes than a total number of unique codes that is generated by the rolling code receiver.
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Abstract
A fixed transmitter for operating a rolling code receiver is disclosed. A set of fixed codes is captured from a rolling code transmitter that is used to actuate a corresponding rolling code receiver. The set of fixed codes is stored in a memory of a fixed code transmitter. The fixed code transmitter, upon each actuation, transmits one or more codes of the set of fixed codes to operate the rolling code receiver. The set of stored fixed codes in the fixed code transmitter has fewer codes than a total number of unique codes that can be generated by the rolling code receiver.
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Citations
17 Claims
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1. A transmitter-receiver system comprising:
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a rolling code receiver that generates a sequence of unique codes based on a rolling code algorithm; and
a fixed code transmitter including a memory that contains a set of fixed codes, said fixed code transmitter operable to transmit one or more codes of the set of fixed codes to operate the rolling code receiver, wherein the set of fixed codes has fewer codes than a total number of unique codes that is generated by the rolling code receiver. - View Dependent Claims (2, 3, 4)
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5. A fixed code transmitter comprising:
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a signal transmission circuit;
a memory that includes a set of fixed codes for operating a rolling code receiver;
a processor coupled to the signal transmission circuit and memory, said processor, in response to actuation of an input, to retrieve one or more codes of the set of fixed codes from the memory and transmit the one or more fixed codes, using the signal transmission circuit, to activate the rolling code receiver, wherein the set of fixed codes has fewer codes than a total number of unique codes that can be generated by the rolling code receiver. - View Dependent Claims (6, 7, 8)
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9. A method of operating a rolling code receiver using a fixed code transmitter comprising:
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capturing a plurality of codes from a rolling code transmitter corresponding to the rolling code receiver;
identifying a set of fixed codes that will operate the rolling code receiver;
storing said set of fixed codes in a memory of said fixed code transmitter; and
activating said rolling code receiver by transmitting, from said fixed code transmitter, one or more codes of said set of fixed codes, wherein said set of fixed codes has fewer codes than a total number of unique codes that is generated by the rolling code receiver. - View Dependent Claims (10, 11)
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12. A method of operating a rolling code receiver with a fixed code transmitter comprising:
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transmitting, from the fixed code transmitter, one or more codes from a set of fixed codes; and
operating the rolling code receiver using the one or more codes, wherein the set of fixed codes has fewer codes than a total number of codes that can be generated by the rolling code receiver. - View Dependent Claims (13, 14)
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15. A transmitter-receiver system comprising:
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a rolling code receiver coupled to a device, said rolling code receiver to generate a sequence of unique codes based on a rolling code algorithm, said rolling code receiver to actuate the device if a received code is equal to a current generated code in the sequence of unique codes; and
a transmitter including a memory that contains a set of codes, said transmitter, upon each actuation, to transmit one or more of the set of codes to operate the rolling code receiver to actuate the device, said set of codes having fewer codes than a total number of codes in the sequence of unique codes. - View Dependent Claims (16)
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17. A transmitter for operating a rolling code receiver, comprising:
a fixed code transmitter including a memory that contains a set of fixed codes, said fixed code transmitter to transmit one or more codes of the set of fixed codes to operate the rolling code receiver, wherein the set of fixed codes has fewer codes than a total number of unique codes that is generated by the rolling code receiver.
Specification