SYSTEM AND METHOD OF TRAINING A TRANSMIT/RECEIVE SYSTEM
First Claim
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1. A method of training a transmitter to a receiver in a rolling code-based radio frequency control system, comprising:
- identifying a rolling code encryption algorithm for use with the receiver from a plurality of rolling code encryption algorithms; and
,using the identified rolling code encryption algorithm to transmit at least two sequential rolling code counter values to the receiver in response to a single user input.
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Abstract
A radio frequency transmitter is configured to send radio frequency messages to activate a remote system. Each message includes an encrypted counter value and a transmitter identifier. The transmitter is configured to send at least two of the messages having sequential encrypted counter values in response to a single user input.
20 Citations
20 Claims
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1. A method of training a transmitter to a receiver in a rolling code-based radio frequency control system, comprising:
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identifying a rolling code encryption algorithm for use with the receiver from a plurality of rolling code encryption algorithms; and
,using the identified rolling code encryption algorithm to transmit at least two sequential rolling code counter values to the receiver in response to a single user input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for coupling to a vehicle and for training to activate a remote system, comprising:
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a radio frequency transmitter having a training mode and an operational mode; wherein the radio frequency transmitter is configured to identify a rolling code encryption algorithm for use with the remote system from a plurality of rolling code encryption algorithms; wherein the radio frequency transmitter is further configured to synchronize a rolling code count of the remote system with a rolling code count of the radio frequency transmitter during the training mode by transmitting, in response to the single user input, at least two messages having different encrypted rolling code count values in accordance with the identified rolling code encryption algorithm; wherein the radio frequency transmitter is configured to transmit another encrypted rolling code count according to the identified rolling code encryption algorithm with the first transmission of the operational mode. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification