Abstract: To calculate the propagation times of signals transmitted and received between the devices more easily and accurately. There is provided a wireless communication device comprising a control section configured to control transmission and reception of a wireless signal by an antenna in conformity with a designated communication standard, wherein the control section controls a timing of causing the antenna to transmit a second signal in response to a first signal received by the antenna, on a basis of fixed time and delay time related to internal transfer in the wireless communication device, the fixed time being decided in advance.

Abstract: A mechanical key for accommodation in a portable device for use in an electronic key system. The mechanical key is provided with a grip including a socket and a key plate fixed to the grip. The key plate includes a blade and a shank, which is inserted into the socket. The shank includes a first edge for abutting against the socket when the shank is inserted into the socket and a shoulder extending from the blade. The socket includes a guide for abutting against and guiding the first edge of the shank when the shank is inserted into the socket. The guide is mated with the first edge under pressure. The socket further includes a second edge for abutting against the shoulder when the shank is inserted into the socket. The second edge is mated with the shoulder under pressure.

Abstract: A key system includes a first authentication part configured to perform first authentication for determining whether or not a unique key code of a key is registered in the operation subject and to permit an operation subject to operate in a state in which a first group of functions is operative when the first authentication generates an affirmative result. A wireless signal receiver is configured to receive a medium code unique to a portable communicable data medium through wireless communication. A second authentication part is configured to perform second authentication for determining whether or not the medium code received by the wireless signal receiver is registered in the operation subject. A condition-imposing part is configured to limit operative functions of the operation subject to a second group of functions that is more limited than the first group of functions when at least either one of the first authentication and the second authentication generates a negative result.

Abstract: A manipulation switch for operating a device that is installed in an automobile by remote control is arranged on a switch body, which is mounted on a steering wheel. A stopper attaches a flat cable, which is electrically connected to the switch body, to the steering wheel. The stopper is adhered to the flat cable. The stopper includes a flange, which extends sideways from the side edge of the flat cable. An engaging hole is formed in the flange. The switch body has an engaging projection, which is engaged with the engaging hole of the flange.

Abstract: A mounting bolt 30 has a disclike flange portion 30b formed on an end of a tightening portion 30a. A switch bracket 28 is fixed to a screw hole 12 by tightening the bolt 30 with the bolt 30 inserted into a mounting hole 29 formed so as to have the same diameter as the screw hole 12. A rubber cover 21 covers the switch bracket 28, and has an annular seal portion 21a formed thereon. The seal portion 21a is larger in diameter than the mounting hole 29 and smaller in diameter than the flange portion 30b. A stepped portion 30c is formed on the bolt 30 in such a manner that a surface of contact thereof with the bracket 28 extends in parallel to the bracket 28, that the diameter thereof is larger than the mounting hole 29 and smaller than the seal portion 21a, and that the length thereof in an axial direction is such that the flange portion 30b biases the seal portion 21a at the time of tightening the bolt 30.

Abstract: A mounting mechanism of a wheel cap includes engaging claws arranged on a wheel cap body of the cap, a flexible ring arranged on the body while contacting with the inner side of each of the claws under pressure, a closing lid arranged on the body, and a projection arranged on the lid. The urging force of the ring applies on the radial inner surface of each claw. The lid is moved between a ring mounting position and a ring releasing position. The projection contacts with the free ends of the ring in the ring mounting position of the lid. Each claw engages with a hump portion of a disc wheel so that the cap is mounted on the disc wheel to be capable of being dismounted therefrom.

Abstract: The electric rearview mirror system comprising a position sensor which outputs a position signal showing the rotational position of the mirror body, memory device which stores the position signal from the position sensor at a prescribed sampling period, and a motor control circuit which judges the rotational direction of the mirror body based on the change with time of the position signal stored in the memory device and turns off the motor when the judged direction of the motor is opposite to the rotational direction of the mirror body due to the mirror driving mechanism.

Abstract: A switch assembly for use, as example, for a wiper switch or an illumination switch of an automobile includes a plurality of switch units each having a control lever. The control lever of one of the switch units has a function of turning on the corresponding switch unit and, additionally, returning the control levers or contact holders of the switch units disposed at ON positions to OFF positions. The switch assembly eliminates the need for the provision of a special return lever or release lever for only returning the control levers or the contact holders from the ON positions to the OFF positions. Accordingly, this construction reduces the number of control levers, which makes the switch assembly small.