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.

An electronic key may include a partial capacitor comprising a capacitive metal plate in communication with a processor. The capacitive metal plate of the partial capacitor is configured to form a capacitor with a corresponding capacitive metal plate of a lock when brought into proximity with the metal plate of the lock. Data may be transferred from the key to the lock using a capacitor formed by combining the two metal plates, wherein a common ground is established between the metal plate of the key and the metal plate of the lock through a parasitic capacitance present between the key and lock circuitry. Audit trail data may be recorded based on usage of the key.

An exemplary vehicle keypad assembly includes, among other things a virtual button having a first area and a second area, a first phosphor between the first area and a light source, and a different, second phosphor between the second area and the light source. An exemplary vehicle keypad illumination method includes, among other things, selectively illuminating a first area of a keypad in one of a plurality of different colors while illuminating a different, second area of the keypad in a single color.

A driver circuit, a method for operating an inductor coil and an active transmission system, wherein a capacitor is charged by means of a charging current to a reference voltage and the charged capacitor is discharged in an oscillating manner via the inductor coil. The inductor coil is short-circuited when the voltage on the capacitor or a current flowing in the inductor coil has passed through at least one complete oscillating period.

A locking and unlocking system includes: a mobile terminal; and a key unit, wherein the mobile terminal includes a terminal transmission unit configured to transmit first authentication information and a first request signal to the key unit, the key unit includes: a key unit reception unit configured to receive the first authentication information and the first request signal from the mobile terminal; a first authentication unit configured to perform authentication; and a locking and unlocking processing unit configured to perform a process of unlocking or locking the door, and the first authentication unit is configured to prohibit the authentication of the mobile terminal in a case where the first authentication unit has once performed the authentication.

A driver circuit, a method for operating an inductor coil and an active transmission system, wherein a capacitor is charged by means of a charging current to a reference voltage and the charged capacitor is discharged in an oscillating manner via the inductor coil. The inductor coil is short-circuited when the voltage on the capacitor or a current flowing in the inductor coil has passed through at least one complete oscillating period.

A combination lock has a touch panel to receive a keypad entry code indicative of a combination code for unlocking the lock with various access levels, including a first level and second level. The combination lock is also arranged to receive the combination code from a mobile device via wireless signals. The combination lock also has an independent key-lock mechanism for unlocking the lock with a key. The mobile device has an application icon, when activated, prompting the wireless signals indicative of the combination code. The mobile device also has a deactivation icon and re-activation associated with the combination code of the first level. The deactivation icon causes the disablement of the touch panel and the key-lock mechanism when activated. The re-activation icon terminates the disablement of the touch panel and the key-lock mechanism when activated.

An input device includes a touch pad may include a transmissive material, a touch detector disposed at a rear portion of the touch pad, a printed circuit board connected to the touch detector, and a plurality of light emitting devices mounted on the printed circuit board, wherein a plurality of input elements is provided on a back surface of the touch detector. Each input element has at least two symbols that are formed in overlap with each other and in mutually different colors.

An on-vehicle apparatus control system includes: a first on-vehicle switch and a second located farther from an on-vehicle reception unit than the first on-vehicle switch; an on-vehicle control device; and a portable machine. In a case where the on-vehicle switches is operated, the on-vehicle control device transmits a response request signal to the portable machine, the portable machine returns a response signal, and the on-vehicle control device controls an on-vehicle apparatus. The on-vehicle apparatus control system further includes a level switch. In a case where the first on-vehicle switch is operated, the level switch switches transmission intensity of a portable machine transmission unit or reception sensitivity of an on-vehicle reception unit to a first level, and in a case where the second on-vehicle switch is operated, the level switch switches the transmission intensity or the reception sensitivity to a second level higher than the first level.

A vehicular door operation detecting apparatus includes a first electrode and a second electrode mounted at a vehicle and positioned away from each other, a switch member switching the first electrode and the second electrode between a conductive state and an open state, and a control portion controlling the switch member and detecting an operation of the user relative to a door for the vehicle by sensing a total capacitance obtained by the first electrode and the second electrode in a first mode where the total capacitance is sensed each predetermined intermittent time and by sensing an individual capacitance of each of the first electrode and the second electrode in a second mode where the individual capacitance is sensed each detection time shorter than the predetermined intermittent time in a case where a presence of the user is determined because the total capacitance exceeds a detection threshold value.