Communication device
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorMasanori Kosugi
Life of this patent
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Abstract
There is provided a communication device comprising: a wireless communication circuit configured to control wireless communication with a portable device in conformity with a specific communication standard; a capacitive sensor circuit configured to detect proximity of an object on a basis of a change in capacitance; an antenna configured to be used for both transmitting/receiving a wireless signal conforming to the specific communication and detecting the capacitance; a high-pass filter disposed between the wireless communication circuit and the antenna; and a low-pass filter disposed between the capacitive sensor circuit and the antenna, wherein the communication device is configured to be disposed in a gripping portion to be gripped by a user carrying the portable device.
Claims9
A communication device, comprising:
- a wireless communication circuit configured to control wireless communication with a portable device in conformity with a specific communication standard;
- a capacitive sensor circuit configured to detect proximity of an object on a basis of a change in capacitance;
- an antenna configured to be used for both transmitting/receiving a wireless signal conforming to the specific communication standard and detecting the capacitance;
- a high-pass filter disposed between the wireless communication circuit and the antenna;
- and
- a low-pass filter disposed between the capacitive sensor circuit and the antenna,
- wherein the communication device is configured to be disposed in a gripping portion to be gripped by a user carrying the portable device, and
- the gripping portion includes a door handle provided on a vehicle.
A communication device, comprising:
- a wireless communication circuit configured to control wireless communication with a portable device in conformity with a specific communication standard;
- a capacitive sensor circuit configured to detect proximity of an object on a basis of a change in capacitance;
- an antenna configured to be used for both transmitting/receiving a wireless signal conforming to the specific communication standard and detecting the capacitance;
- a high-pass filter disposed between the wireless communication circuit and the antenna;
- and
- a low-pass filter disposed between the capacitive sensor circuit and the antenna,
- wherein the communication device is configured to be disposed in a gripping portion to be gripped by a user carrying the portable device, and
- the capacitive sensor circuit detects the proximity of the object after authenticity of the portable device is confirmed.
Dependencies are inferred from the claim text.