Omron Automotive Electronics Co., Ltd.

Omron Corporation

Shuji Yamashita

Yosuke Tomita

Tetsuo Nishidai

Takahiro Inaguma

Hidemitsu Kawashima

Akitomo Tanaka

Yasushi Hatakeyama

An in-vehicle system has a control device that controls a vehicle, and a charging device provided in the vehicle, in which a portable terminal is chargeable. The charging device has a power supply part that supplies power to the portable terminal, and a communication part that communicates with the portable terminal when the portable terminal is installed on the charging device. The control device has an authentication part that authenticates first authentication information received by the communication part from the portable terminal, and a vehicle control part that controls whether to permit starting of the vehicle based on an authentication result of the first authentication information.

In-vehicle system, vehicle control method, and vehicle control system

A radio transmitter for modulating a carrier wave in a predetermined frequency with given information to transmit the modulation signal through an antenna having a predetermined resonance frequency fhas a frequency changing section that changes the frequency of the carrier wave. The frequency changing section changes the frequency of the carrier wave to one of the resonance frequency fand a frequency f&#xd7;1/n, (wherein n is a given integer of at least 2, to change transmission output power.

Radio transmitter for modulating a carrier wave

An antenna device is composed of a plurality of units of a same structure connected in series. Each of these units includes a single antenna, a level signal generating part for generating a level signal indicative of the intensity of a received signal, or that of its carrier wave, from the antenna, a demodulated signal generating part for generating a demodulated signal by demodulating a received signal from the antenna, a level signal input terminal for receiving an inputted level signal from outside, a demodulated signal input terminal for receiving an inputted demodulated signal from outside, and a selector which serves to compare the level signal generated by the level signal generating part and the inputted level signal received through the level signal input terminal, to select the level signal generated by the level signal generating part and the demodulated signal generated by the demodulated signal generating part if the level signal generated by the level signal generating part is greater than the inputted level signal, to select the inputted level signal and the inputted demodulated signal if the inputted level signal is greater than the level signal generated by the level signal generating part, and to output the selected level signal and the selected demodulated signal through a level signal output terminal and a demodulated signal output terminal, respectively.

Antenna device and tire pressure monitoring system including same

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Nagoya, Japan

Shuji Yamashita