VEHICLE OPENING-AND-CLOSING MEMBER LOCKING-AND-UNLOCKING APPARATUS
First Claim
1. A vehicle opening-and-closing member locking-and-unlocking apparatus comprising:
- an antenna including a series resonance circuit having a resonance capacitor and an antenna coil connected in series and an impedance regulating resistance connected in parallel to the antenna coil, the resonance capacitor side being connected in parallel to a first connecting line, the antenna coil side being connected to a second connecting line, and the antenna transmitting authentication information for locking and unlocking a vehicle opening-and-closing member to a portable device carried by a user of the vehicle by resonance with an antenna drive signal output from an ECU via the first connecting line and the second connecting line;
a human detection IC configured to detect contact to a human detecting area on the vehicle opening-and-closing member by the user by operating with the antenna drive signal as power source when the antenna is driven and thus a direct current power source voltage is not supplied from the ECU via the first connecting line; and
a rectifier circuit configured to AC/DC convert the antenna drive signal and supply the converted signal to the human detection IC.
1 Assignment
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Accused Products
Abstract
A vehicle opening-and-closing member locking-and-unlocking apparatus includes: an antenna including a series resonance circuit having a resonance capacitor and an antenna coil connected in series and an impedance regulating resistance connected in parallel to the antenna coil, the resonance capacitor side being connected in parallel to a first connecting line, the antenna coil side being connected to a second connecting line, and the antenna transmitting authentication information for locking and unlocking a vehicle opening-and-closing member to a portable device by resonance with an antenna drive signal output from an ECU via the first and second connecting lines; a human detection IC detecting contact to a human detecting area on the vehicle opening-and-closing member by the user; and a rectifier circuit configured to AC/DC convert the antenna drive signal and supply the converted signal to the human detection IC.
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Citations
7 Claims
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1. A vehicle opening-and-closing member locking-and-unlocking apparatus comprising:
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an antenna including a series resonance circuit having a resonance capacitor and an antenna coil connected in series and an impedance regulating resistance connected in parallel to the antenna coil, the resonance capacitor side being connected in parallel to a first connecting line, the antenna coil side being connected to a second connecting line, and the antenna transmitting authentication information for locking and unlocking a vehicle opening-and-closing member to a portable device carried by a user of the vehicle by resonance with an antenna drive signal output from an ECU via the first connecting line and the second connecting line; a human detection IC configured to detect contact to a human detecting area on the vehicle opening-and-closing member by the user by operating with the antenna drive signal as power source when the antenna is driven and thus a direct current power source voltage is not supplied from the ECU via the first connecting line; and a rectifier circuit configured to AC/DC convert the antenna drive signal and supply the converted signal to the human detection IC. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification