Abstract: An antenna driving apparatus includes: a direct current power source supplying direct current power to a human detecting IC detecting contact to a human detecting area by a user, the power source outputting a power source voltage to a first connecting line connected to a power source terminal of the IC and outputting a reference potential to a second connecting line connected to a GND terminal of the IC; an antenna driving circuit driving an antenna transmitting a signal to a portable device, the antenna driving circuit outputting a first antenna drive signal to the first connecting line and outputting an antenna drive signal; and a control unit performing switching control of the power source voltage and the antenna drive signal to be output to the first and second connecting lines and switching control of the antenna driving circuit.

Abstract: A vehicle door handle driving device connected to an antenna and a DC driving detection member capable of detecting approach or touch of a person, which are connected in parallel, through first and second connection wires, wherein the first connection wire is constantly connected to a first positive DC power supply, and the second connection wire is connected to a ground for a period during which the antenna is not driven, the vehicle door handle driving device includes: a booster capacitor whose one terminal is connected to the first DC power supply; and an inverter connected to the other terminal of the booster capacitor, connected to a second positive DC power supply and the ground, generating an AC voltage having a resonance frequency of the antenna, and outputting the generated AC voltage to the first and second connection wires.

Abstract: A vehicle door handle device includes: a detection member including an antenna and a DC driving detection member capable of detecting approach or touch of a person, electrically connected to a driving controller through first and second connection wires and are connected in parallel, wherein the antenna is driven by an AC voltage supplied from the driving controller, the detection member is driven by a DC voltage supplied from the driving controller by respectively connecting the first connection wire and the second connection wire to a positive DC power supply and a ground, the detection member includes a power terminal and a ground terminal, a detection output terminal, an antenna driving detection terminal, and an antenna driving detection unit, and the vehicle door handle device further comprises a DC cut capacitor, and a passive element.

Abstract: An opening/closing member opening/closing apparatus includes: an operation handle including a first section thick in a normal direction to a surface on the front side and in which a turning shaft is disposed, and a grip section formed of a second section thinner than the first section on the front side, configured to be supported in a turning manner by a base member disposed in an opening/closing member, and able to shift between an accommodated position and a projecting position; a first sensor section detecting an operation through which the opening/closing member enters into an unlocked state and disposed in the grip section; and a second sensor section detecting an operation through which the opening/closing member enters into a locked state and disposed in the operation handle so as not to be overlapped with the grip section in a side view.

Abstract: An opening/closing member opening/closing apparatus includes: an operation handle that is configured to have a sensor section and to be supported in a turning manner by a base member disposed in an opening/closing member of a vehicle; and a CPU that performs first control in response to detection by the sensor section in a case where the operation handle is positioned at a first position and that performs second control different from the first control in response to detection by the sensor section in a case where the operation handle is positioned at a second position different from the first position.

Abstract: A bobbin for a bar antenna includes a core holding portion being configured to be mounted with a stick-shaped core, and a restriction portion being connected to the core holding portion, the restriction portion being configured to restrict a turned-back portion of a conductive wire from moving to a side where a lamination portion is positioned, the conductive wire forming the lamination portion by being wound to the core in a first direction in a longitudinal direction of the core, the turned-back portion serving as a portion being turned back in a second direction that is different from the first direction.

Abstract: An operation input confirmation device includes an operation input section configured to be used for locking/unlocking a vehicle door, an operation input detector, which detects the occurrence of an operation input to the operation input section, a locking-unlocking confirmation section, which generates a locking-unlocking confirmation output indicating execution of locking/unlocking corresponding to the operation input, and an operation confirmation section, which generates an operation confirmation output indicating the occurrence of the operation input in response to the detection of the occurrence of the operation input without waiting for execution of the locking/unlocking.

Abstract: An antenna drive apparatus applying an antenna drive voltage to an antenna from an H-bridge circuit including four switching elements to drive the antenna, includes: a switching mechanism to switch between a full-bridge state in which a differential voltage between a pulse voltage and a reverse pulse voltage reversed from the pulse voltage is applied to the antenna as the antenna drive voltage, and a half-bridge state in which the pulse voltage or the reverse pulse voltage is applied to the antenna as the antenna drive voltage; and a control mechanism to control the switching mechanism so that the frequency of the full-bridge state per unit time during an initial period of driving of the antenna in a transmission period for transmitting a transmission signal by the antenna becomes higher than that during the subsequent period in the transmission period.

Abstract: An antenna drive apparatus having a drive control unit and an antenna connected to the drive control unit via first and second connecting lines, and driven by an AC signal at a first resonant frequency, includes: a first driven member connected to the drive control unit via the connecting lines and driven by the AC signal at a second resonant frequency; a sensing member connected to the drive control unit via the connecting lines and driven by a DC signal, capable of sensing approach or contact of a person and, outputting a sensing signal indicating the fact that the approach or the contact has been sensed to the drive control unit via the first connecting line; and a stop mechanism configured to stop a function of the sensing member when the AC signal supplied to the antenna or the first driven member is sensed.

Abstract: An antenna drive apparatus applying an antenna drive voltage to an antenna from an H-bridge circuit including four switching elements to drive the antenna, includes: a switching mechanism to switch between a full-bridge state in which a differential voltage between a pulse voltage and a reverse pulse voltage reversed from the pulse voltage is applied to the antenna as the antenna drive voltage, and a half-bridge state in which the pulse voltage or the reverse pulse voltage is applied to the antenna as the antenna drive voltage; and a control mechanism to control the switching mechanism so that the frequency of the full-bridge state per unit time during an initial period of driving of the antenna in a transmission period for transmitting a transmission signal by the antenna becomes higher than that during the subsequent period in the transmission period.

Abstract: An antenna drive apparatus having a drive control unit and an antenna connected to the drive control unit via first and second connecting lines, and driven by an AC signal at a first resonant frequency, includes: a first driven member connected to the drive control unit via the connecting lines and driven by an AC signal at a second resonant frequency; a sensing member connected to the drive control unit via the connecting lines and driven by a DC signal, capable of sensing approach or contact of a person and, outputting a sensing signal indicating the fact that the approach or the contact has been sensed to the drive control unit via the first connecting line; and a stop mechanism configured to stop a function of the sensing member when an AC signal supplied to the antenna or the first driven member is sensed.

Abstract: A door handle device capable of operating a door opening/closing mechanism of a vehicle is disclosed. The door handle device includes a support member, a door handle, a circuit substrate, a lock detection electrode, a capacitance sensor, and an auxiliary electrode. The circuit substrate is arranged in the door handle and includes a ground electrode. The lock detection electrode is mounted on the circuit substrate and capacitance-coupled to an outer panel of the door. The capacitance sensor is connected to the lock detection electrode and detects the issuance of a door lock command based on a change in a first capacitance between the outer panel and the lock detection electrode. The auxiliary electrode is capacitance-coupled to the ground electrode to form a second capacitance connected in parallel to the first capacitance between the auxiliary electrode and the ground electrode.

Abstract: A door opening/closing apparatus includes an opening/closing handle provided in a vehicle door, electrodes disposed in the door handle, a detection circuit configured to detect a change of electrostatic capacitance which occurs in the vicinity of the electrodes when a human body portion approaches or contacts the door handle and then to output a locking or unlocking operation signal and a device for executing locking or unlocking of the door based on the operation signal, and a transmission/reception antenna for effecting transmission/reception with a portable unit corresponding to the vehicle, wherein the door handle includes an insulating base body, and on a vehicle outer side surface of the base body, there is attached a metal layer comprised of a group of island shaped metal particles that extend along the surface of the base body and that are separated from each other.

Abstract: A door opening/closing apparatus includes an opening/closing handle provided in a vehicle door, electrodes disposed in the door handle, a detection circuit configured to detect a change of electrostatic capacitance which occurs in the vicinity of the electrodes when a human body portion approaches or contacts the door handle and then to output a locking or unlocking operation signal and a device for executing locking or unlocking of the door based on the operation signal, and a transmission/reception antenna for effecting transmission/reception with a portable unit corresponding to the vehicle, wherein the door handle includes an insulating base body, and on a vehicle outer side surface of the base body, there is attached a metal layer comprised of a group of island shaped metal particles that extend along the surface of the base body and that are separated from each other.

Abstract: A door handle apparatus includes a first handle case including a holding portion defining a gap between the holding portion and an outer surface of an outer panel of a vehicle door, a second handle case attached to the first handle case, a conductive member provided at an outer surface of the second handle case, a lock detection electrode facing the conductive member and facing an inner surface of the second handle case for establishing a capacitive coupling between the lock detection electrode and the conductive member, the lock detection electrode detecting a door-lock command on the basis of a fluctuation of an electrostatic capacity generated in response to a contact or an approach of a vehicle user to the conductive member, and a decorating piece surrounding the conductive member, joined to the outer surface of the second handle case and defining a design surface of the door handle apparatus.

Abstract: A door handle device capable of operating a door opening/closing mechanism of a vehicle is disclosed. The door handle device includes a support member, a door handle, a circuit substrate, a lock detection electrode, a capacitance sensor, and an auxiliary electrode. The circuit substrate is arranged in the door handle and includes a ground electrode. The lock detection electrode is mounted on the circuit substrate and capacitance-coupled to an outer panel of the door. The capacitance sensor is connected to the lock detection electrode and detects the issuance of a door lock command based on a change in a first capacitance between the outer panel and the lock detection electrode. The auxiliary electrode is capacitance-coupled to the ground electrode to form a second capacitance connected in parallel to the first capacitance between the auxiliary electrode and the ground electrode.