Keyless entry system for automotive vehicles
First Claim
Patent Images
1. A keyless entry system for automobiles comprising:
- input means for inputting a unique identification code signal;
control means having a code memory, said control means which, when said unique identification code signal matches with a preset identification code signal stored in said memory, outputs a coincidence signal;
locking key holder means disposed in the vehicular cabin for safely keeping a key, said locking key holder means which, only when receiving said coincidence signal from said control means, allows the key to be operated or to be removed.
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Abstract
A keyless entry system comprises a locking key holder having a key lock pin, an actuator for operating the key lock pin, and a controller which detects a unique identification code of the authorized user and a preset identification code and outputs an activating signal for operating vehicular devices, such as a door lock and/or the actuator. The key may be safely kept in the locking key holder and cannot be removed therefrom unless the unique code has been received. Thus, the necessity for the user to carry a mechanical key is eliminated.
71 Citations
19 Claims
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1. A keyless entry system for automobiles comprising:
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input means for inputting a unique identification code signal; control means having a code memory, said control means which, when said unique identification code signal matches with a preset identification code signal stored in said memory, outputs a coincidence signal; locking key holder means disposed in the vehicular cabin for safely keeping a key, said locking key holder means which, only when receiving said coincidence signal from said control means, allows the key to be operated or to be removed. - View Dependent Claims (2, 3, 4, 5)
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6. A keyless entry system for automobiles comprising:
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a portable transmitter; receiving means for receiving a unique identification code signal from said portable transmitter; discriminating means for discriminating said unique identification code signal from a preset identification code signal, said discriminating means outputting a coincidence signal when these identification codes match each other; key storing means disposed in the vehicular cabin for receiving a key; key lock means for locking said key in an internal space defined by said key storing means; key lock releasing means for unlocking said key lock means in response to said coincidence signal from said discriminating means. - View Dependent Claims (7, 8, 9, 10)
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11. A keyless entry system for automobiles comprising:
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a portable transmitter for inputting a unique identification code signal; control means having a code memory, said control means which, when said unique identification code signal matches with a preset identification code signal stored in said memory, outputs a coincidence signal; a request switch connected to said control means so that said control means outputs a request signal to said transmitter only when said request switch is manually operated; said portable transmitter transmitting said unique identification code signal in response to said request signal; locking key holder means disposed in the vehicular cabin for safely keeping a key, said locking key holder means which, only when receiving said coincidence signal from said control means, allows the key to be operated or to be removed. - View Dependent Claims (12, 13)
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14. A keyless entry system for automobiles comprising:
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input means for manually inputting a unique identification code signal; discriminating means for discriminating said unique identification code signal from a preset identification code signal, said discriminating means outputting a coincidence signal when these identification codes match each other; key storing means disposed in the vehicular cabin for receiving a key; key lock means for locking said key in an internal space defined by said key storing means; key lock releasing means for unlocking said key lock means in response to said coincidence signal from said discriminating means. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification