Secure key acknowledgement—frequency dilution
First Claim
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1. A wireless key transmission system, comprising:
- a receiving unit, comprising;
a transceiver that transmits and receives encrypted data from a key transmitter, wherein data includes communication requests and a plurality of keys from the key transmitter;
key processing electronics configured to analyze data received from the key transmitter to determine the legitimacy of the received data from the key transmitter and generate a clearance signal if the received key data is legitimate;
transceiver electronics configured to operate the transceiver and configured to receive data from the key transmitter, wherein the transceiver electronics generates a frequency map for transmission to the key transmitter after receipt of a clearance signal from the key processing electronics for received data related to a communication request; and
an actuator configured to engage an action of a plurality of actions requested by a key of the plurality of keys after the key processing electronics have generated a clearance signal for the key of the plurality of keys; and
a key transmitter, comprising;
a transceiver that transmits and receives encrypted data from the receiving unit;
transceiver electronics configured to control operation of the transceiver, wherein the transceiver electronics receives the frequency map from the receiving unit and uses the frequency map to communicate keys of the plurality of keys to the receiving unit; and
key processing electronics configured to formulate a plurality of keys for processing by the receiving unit, wherein each key corresponds to an action engageable by the actuator.
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Abstract
An embodiment of the invention provides a system for securely establishing a connection between a key and a receiver within or connected to, a vehicle such as, but not limited to, a car/motorized vehicle, a boat/vessel or a house. The key establishes contact to the receiver by sending a radio transmission. The receiver will respond, upon receipt of incoming transmission, with a message containing a pattern of multiple (2 or more) frequencies the key must transmit information on sequentially to allow for the receiver to do certain actions based on information transmitted by the key such as, but not limited to, turning on ignition, starting engine, switching relays.
34 Citations
16 Claims
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1. A wireless key transmission system, comprising:
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a receiving unit, comprising; a transceiver that transmits and receives encrypted data from a key transmitter, wherein data includes communication requests and a plurality of keys from the key transmitter; key processing electronics configured to analyze data received from the key transmitter to determine the legitimacy of the received data from the key transmitter and generate a clearance signal if the received key data is legitimate; transceiver electronics configured to operate the transceiver and configured to receive data from the key transmitter, wherein the transceiver electronics generates a frequency map for transmission to the key transmitter after receipt of a clearance signal from the key processing electronics for received data related to a communication request; and an actuator configured to engage an action of a plurality of actions requested by a key of the plurality of keys after the key processing electronics have generated a clearance signal for the key of the plurality of keys; and a key transmitter, comprising; a transceiver that transmits and receives encrypted data from the receiving unit; transceiver electronics configured to control operation of the transceiver, wherein the transceiver electronics receives the frequency map from the receiving unit and uses the frequency map to communicate keys of the plurality of keys to the receiving unit; and key processing electronics configured to formulate a plurality of keys for processing by the receiving unit, wherein each key corresponds to an action engageable by the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A wireless key transmission system, comprising:
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a receiver configured to receive a communication request from a key system, generate a random list of frequencies, encrypt the frequency list, and transmit a message to the key system that includes the encrypted frequency list; and a key system configured to send the communication request and send the communication request to the receiver, receive from the receiver the message comprising the encrypted frequencies list, decrypt the encrypted frequencies list, prepare an action message for transmission to the receiving unit, and transmit the action message along with a verification message on each of the frequencies included in the encrypted frequencies list, wherein the receiver engages an action specified in the action message after it has verified that the key system has sent verification messages on each of the frequencies included in the encrypted frequencies list.
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Specification