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 rolling codes based on a rolling code algorithm; and
a transmitter comprising;
an updatable non-volatile memory that contains a plurality of predetermined codes for operating a plurality of receivers, a processor coupled to the non-volatile memory, said processor to cause the transmitter to, receive a user receiver selection to operate said rolling code receiver, access a set of predetermined codes from said plurality of predetermined codes in the updatable non-volatile memory in response to said user receiver selection, and transmit said set of predetermined codes to operate the rolling code receiver in response to an activation command.
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Abstract
A transmitter for operating a rolling code receiver is disclosed. A fixed code transmitter is capable of operating a plurality of different receivers (including rolling code receivers) by updating the transmitter'"'"'s volatile memory with a set of one or more fixed codes stored in a non-volatile memory of the transmitter. In one embodiment, the transmitter'"'"'s updatable nonvolatile memory is updated with a code or codes necessary for operating a user-selected receiver. In another embodiment, activating the transmitter will cause it to transmit the code(s) previously stored in the updatable nonvolatile memory based on the user receiver selection.
34 Citations
51 Claims
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1. A transmitter-receiver system comprising:
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a rolling code receiver that generates a sequence of rolling codes based on a rolling code algorithm; and
a transmitter comprising;
an updatable non-volatile memory that contains a plurality of predetermined codes for operating a plurality of receivers, a processor coupled to the non-volatile memory, said processor to cause the transmitter to, receive a user receiver selection to operate said rolling code receiver, access a set of predetermined codes from said plurality of predetermined codes in the updatable non-volatile memory in response to said user receiver selection, and transmit said set of predetermined codes to operate the rolling code receiver in response to an activation command. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A transmitter comprising:
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a signal transmission circuit;
an updatable non-volatile memory that contains a plurality of predetermined codes for operating a plurality of receivers; and
a processor coupled to the signal transmission circuit and the updatable non-volatile memory, said processor to, receive a first user receiver selection to operate a first rolling code receiver, access a first set of predetermined codes from said plurality of predetermined codes in the updatable non-volatile memory in response to said first user receiver selection, and transmit, using the signal transmission circuit, said first set of predetermined codes to operate the first rolling code receiver in response to an activation command. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of operating a first rolling code receiver using a transmitter comprising:
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receiving a first user receiver selection to operate the first rolling code receiver;
accessing a first set of predetermined codes from said plurality of predetermined codes in an updatable non-volatile memory in response to said first user receiver selection; and
transmitting said first set of predetermined codes to operate the first rolling code receiver in response to an activation command. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification