Keyless vehicle lock system with distance measuring
First Claim
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1. A keyless lock system for a vehicle, comprising:
- a portable communicating means for transmitting a code signal;
an onboard communicating means for receiving said code signal from said portable communicating means;
a primary means for detecting a predetermined vehicle condition of the vehicle;
a final means for producing a first warning signal in response to a first alarm command signal; and
a controlling means for producing an automatic request signal when said predetermined vehicle condition is detected by said primary means, ascertaining an existence of said portable communicating means by receiving said code signal through said onboard communicating means from said portable communicating means, when said automatic request signal is produced, and producing said first alarm command signal if said portable communicating means is absent, said controlling means being connected with said primary means to receive a signal from said primary means and further connected with said final means to send said first alarm command signal to said final means,wherein said primary means comprises a vehicle condition sensing means for detecting said predetermined vehicle condition which normally exists when said portable communicating means is moved out of the vehicle through one of doors and windows of the vehicle.
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Abstract
A keyless lock system for a vehicle includes a card for transmitting a radio signal, at least one onboard antenna for receiving the radio signal, and a control unit for allowing and preventing keyless lock and unlock operations in dependence on the existence or nonexistence of the card in a predetermined area near the antenna. The control unit monitors the position of of at least one monitored door, and produces a card warning signal each time the monitored door is closed if the card is absent in the vehicle.
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Citations
30 Claims
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1. A keyless lock system for a vehicle, comprising:
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a portable communicating means for transmitting a code signal; an onboard communicating means for receiving said code signal from said portable communicating means; a primary means for detecting a predetermined vehicle condition of the vehicle; a final means for producing a first warning signal in response to a first alarm command signal; and a controlling means for producing an automatic request signal when said predetermined vehicle condition is detected by said primary means, ascertaining an existence of said portable communicating means by receiving said code signal through said onboard communicating means from said portable communicating means, when said automatic request signal is produced, and producing said first alarm command signal if said portable communicating means is absent, said controlling means being connected with said primary means to receive a signal from said primary means and further connected with said final means to send said first alarm command signal to said final means, wherein said primary means comprises a vehicle condition sensing means for detecting said predetermined vehicle condition which normally exists when said portable communicating means is moved out of the vehicle through one of doors and windows of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A keyless lock system for a vehicle, comprising:
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a portable communicating means for transmitting a code signal; an onboard communicating means for receiving said code signal from said portable communicating means; a primary means for detecting a predetermined vehicle condition of the vehicle; a final means for producing a first warning signal in response to a first alarm command signal; and a controlling means for producing an automatic request signal when said predetermined vehicle condition is detected by said primary means, ascertaining an existence of said portable communicating means by receiving said code signal through said onboard communicating means from said portable communicating means, when said automatic request signal is produced, and producing said first alarm command signal if said portable communicating means is absent, said controlling means being connected with said primary means to receive a signal from said primary means and further connected with said final means to send said first alarm command signal to said final means, wherein said primary means comprises a vehicle condition sensing means for detecting said predetermined vehicle condition which occurs more frequently when said portable communicating means is moved out of the vehicle than when said portable communicating means is held within the vehicle.
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Specification