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: 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 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: Provided is a capacitance detection apparatus capable of effectively discriminating between an external factor due to e.g. water drops and a human-induced operation and allowing detection of occurrence of the human-induced operation with a simple arrangement. The apparatus alternately executes a first switching control process and a second switching control process, the first and second switching control processes executing a second switch operation with different charging periods from each other. In each of the first and second switching control processes, the number of repetition times of the second switch operation is counted until the potential of a terminal of a reference capacitance changes to a set potential. Based on the number of repetition times in at least one of the two switching control processes, presence/absence of change in determined capacitance (i.e.

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: Provided is a capacitance detection apparatus capable of effectively discriminating between an external factor due to e.g. water drops and a human-induced operation and allowing detection of occurrence of the human-induced operation with a simple arrangement. The apparatus alternately executes a first switching control process and a second switching control process, the first and second switching control processes executing a second switch operation with different charging periods from each other. In each of the first and second switching control processes, the number of repetition times of the second switch operation is counted until the potential of a terminal of a reference capacitance changes to a set potential. Based on the number of repetition times in at least one of the two switching control processes, presence/absence of change in determined capacitance (i.e.

Abstract: A transmitter portion 14 includes a control circuit 32, a driver circuit 33, and a wave detector circuit 35. The control circuit 32 generates control signals Vp, Vn based on a pulsed transmission signal So. The driver circuit 33, which is supplied with a battery voltage Vb, generates an output signal Sa to be sent to an antenna 13 based on the control signals Vp, Vn. The wave detector circuit 35 outputs a detection signal Sk having a voltage proportional to the level of the output signal Sa (transmission power level). The control circuit 32 changes the pulse widths of the control signals Vp, Vn based on the voltage level of the detection signal Sk. As a result, electric power consumption is reduced and enlargement of an apparatus is suppressed while maintaining the transmission power level constant.

Abstract: A transmitter portion 14 includes a control circuit 32, a driver circuit 33, and a wave detector circuit 35. The control circuit 32 generates control signals Vp, Vn based on a pulsed transmission signal So. The driver circuit 33, which is supplied with a battery voltage Vb, generates an output signal Sa to be sent to an antenna 13 based on the control signals Vp, Vn. The wave detector circuit 35 outputs a detection signal Sk having a voltage proportional to the level of the output signal Sa (transmission power level). The control circuit 32 changes the pulse widths of the control signals Vp, Vn based on the voltage level of the detection signal Sk. As a result, electric power consumption is reduced and enlargement of an apparatus is suppressed while maintaining the transmission power level constant.