A door handle device for a vehicle includes: an antenna and a DC driving detection member capable of detecting approach or contact of a person, the antenna and the DC driving detection member being electrically connected to a drive control portion via a first connection line and a second connection line, and being connected in parallel to each other. The antenna is driven by an AC voltage supplied from the drive control portion, the first connection line and the second connection line are respectively connected to a positive DC power source and a ground, and thereby the detection member is driven by a DC voltage supplied from the drive control portion, the antenna includes a resonance capacitor and an antenna coil which are connected in series. The detection member includes a power source terminal, and a ground terminal.

A door handle device for a vehicle includes: an antenna and a DC driving detection member capable of detecting approach or contact of a person, the antenna and the DC driving detection member being electrically connected to a drive control portion via a first connection line and a second connection line, and being connected in parallel to each other. The antenna is driven by an AC voltage supplied from the drive control portion, the first connection line and the second connection line are respectively connected to a positive DC power source and a ground, and thereby the detection member is driven by a DC voltage supplied from the drive control portion, the antenna includes a resonance capacitor and an antenna coil which are connected in series. The detection member includes a power source terminal, and a ground terminal.

An electronic device is provided and includes a housing surrounding the electronic device, a wireless communication circuit positioned in the housing to communicate with a vehicle, and a switch connected to one of a first electrical path or a second electrical path, wherein the first electrical path includes a first antenna element extending along a first portion of the housing and the second electrical path includes a second antenna element extending along a second portion of the housing.

An electronic device is provided and includes a housing surrounding the electronic device, a wireless communication circuit positioned in the housing to communicate with a vehicle, and a switch connected to one of a first electrical path or a second electrical path, wherein the first electrical path includes a first antenna element extending along a first portion of the housing and the second electrical path includes a second antenna element extending along a second portion of the housing.

A door handle device for a vehicle includes: an antenna and a DC driving detection member capable of detecting approach or contact of a person, the antenna and the DC driving detection member being electrically connected to a drive control portion via a first connection line and a second connection line, and being connected in parallel to each other. The antenna is driven by an AC voltage supplied from the drive control portion, the first connection line and the second connection line are respectively connected to a positive DC power source and a ground, and thereby the detection member is driven by a DC voltage supplied from the drive control portion, the antenna includes a resonance capacitor and an antenna coil which are connected in series. The detection member includes a power source terminal, and a ground terminal.

A door handle device for a vehicle includes: an antenna and a DC driving detection member capable of detecting approach or contact of a person, the antenna and the DC driving detection member being electrically connected to a drive control portion via a first connection line and a second connection line, and being connected in parallel to each other. The antenna is driven by an AC voltage supplied from the drive control portion, the first connection line and the second connection line are respectively connected to a positive DC power source and a ground, and thereby the detection member is driven by a DC voltage supplied from the drive control portion, the antenna includes a resonance capacitor and an antenna coil which are connected in series. The detection member includes a power source terminal, and a ground terminal.

A device for detecting a user's intention to lock or unlock a motor vehicle door, integrated into a handle (10) and consisting of a casing (B) includes a first part (52), elastically deformable along a predetermined axis (Y-Y), with an area (50) of contact with the handle, a printed circuit (80), a voltage source (Vcc), and a contact detection element (100) including: a non-magnetic metal target (40) which moves along the predetermined axis, a coil (20), and a capacitance (C1), forming an oscillating circuit, elements (M1) for adjusting the frequency of the circuit, a prestressed compressible element (30), located between the target and the coil, elements (51) for transmitting a movement of the first part to the target, elements (M2) for measuring an inductance (L) of the coil, elements (M3) for comparison between the measured inductance and a predetermined threshold value of inductance (L.sub.s), and control elements (60).

A device for detecting a user's intention to lock or unlock a motor vehicle door, integrated into a handle (10) and consisting of a casing (B) includes a first part (52), elastically deformable along a predetermined axis (Y-Y), with an area (50) of contact with the handle, a printed circuit (80), a voltage source (Vcc), and a contact detection element (100) including: a non-magnetic metal target (40) which moves along the predetermined axis, a coil (20), and a capacitance (C1), forming an oscillating circuit, elements (M1) for adjusting the frequency of the circuit, a prestressed compressible element (30), located between the target and the coil, elements (51) for transmitting a movement of the first part to the target, elements (M2) for measuring an inductance (L) of the coil, elements (M3) for comparison between the measured inductance and a predetermined threshold value of inductance (L.sub.s), and control elements (60).

An access control device is for a door of a vehicle. The access control device has: an actuation element with an actuator, the actuation element being controllably configured to be brought from a blocking state into a release state and vice-versa; a power supply interface, which is configured to supply the access control device with power; a controller, which is configured to carry out open-loop and/or closed-loop control of a state of the actuation element; and a near-field communication interface, which is configured to read out a digital access authorisation and to transmit the digital access authorisation to the controller. The controller is configured to carry out the open-loop and/or closed-loop control of the state of the actuation element in accordance with a validity of the digital access authorisation. The power supply interface is configured such that a portable energy store is connectable without the use of tools.

An access control device is for a door of a vehicle. The access control device has: an actuation element with an actuator, the actuation element being controllably configured to be brought from a blocking state into a release state and vice-versa; a power supply interface, which is configured to supply the access control device with power; a controller, which is configured to carry out open-loop and/or closed-loop control of a state of the actuation element; and a near-field communication interface, which is configured to read out a digital access authorisation and to transmit the digital access authorisation to the controller. The controller is configured to carry out the open-loop and/or closed-loop control of the state of the actuation element in accordance with a validity of the digital access authorisation. The power supply interface is configured such that a portable energy store is connectable without the use of tools.