Panasonic Corporation

Alps Alpine Co., Ltd.

Mitsuharu Nakasato

Nobuaki Tanaka

Daigo Imano

Satoru Watanabe

Daisuke Takai

Yukimitsu Yamada

Hironori Kikuchi

Keigo Wakana

Yoshihisa Kishimoto

Kazuma Sato

A remote communication system includes a portable device; and a fixed system. The fixed system includes main communication modules; and a position estimating unit configured to estimate a position of the portable device, based on an incident angle of a signal from the portable device, upon detecting the signal by antennas provided in the main communication modules. When there are two main communication modules for which the incident angle is known, the position of the portable device is estimated based on the incident angle. When there is one main communication module for which the incident angle is known, the position of the portable device is estimated based on the incident angle and a received radio wave intensity of the signal. When there is no main communication module for which the incident angle is known, the position of the portable device is estimated based on the received radio wave intensity.

Remote communication system

An object of the present invention is to provide an antenna device for a radio apparatus in which the amount of energy (SAR) absorbed by a head of a human body can be reduced without lowering the power of radio waves transmitted during a call. There is provided a boardserving as a base plate of an antenna element, an antenna elementdisposed in a longitudinally end portion of the boardthrough a feeding portion, a conductor platedisposed substantially in parallel with a main surface of the boardand disposed on the opposite side to a surface having a sound hole of a receiver portion, and a plurality of short-circuit conductorsdisposed on a lower end portion of the conductor plate. The conductor plateis short-circuited to a lower end portion of the boardthrough the short-circuit conductors

Antenna device for radio apparatus and portable radio apparatus

Radio machine antenna device and portable radio machine

In a communication terminal in which a first enclosure and a second enclosure are foldable, to provide the communication terminal with an antenna characteristic with a wide band performance in either when the enclosures are opened or folded. In a folding communication terminal comprising an upper enclosureand a lower enclosurewhich are foldable through a hinge, and an antennaattached to the lower enclosure, the antennais arranged along the edge of the end faceA on the upper side abutting on the hinge of the lower enclosure, a conductor is placed in the upper enclosurenot provided with the antenna, and a second printed boardis provided so that when the upper enclosureand the lower enclosureare opened, it is connected to the antennaat a high frequency to operate as the antenna, thereby transmitting/receiving an electromagnetic wave.

Folding type communication terminal device

Growing community of inventors

Miyagi, Japan

Mitsuharu Nakasato