Sharp Kabushiki Kaisha Corporation

Miyoshi Yamauchi

Mitsuhiro Noboru

Syuuji Matsuura

Haruo Koizumi

Toshifumi Akiyama

Junichi Somei

Tsutomu Jitsuhara

Hitoshi Ogino

Akio Ito

Akira Tokuda

Youichi Yuuki

Toyomi Yonemaru

Eiji Suematsu

Hitoshi Azuma

Motofumi Yamaguchi

An earphone antenna device operable to be connected with a wireless communication terminal device includes: earphone cables, connected with earphone sections, respectively, for supplying audio signals; an audio cable one end of which is connected with the wireless communication terminal device and the other end is connected with the earphone cables; and a coaxial cable one end of which is connected with the wireless communication terminal device and the other end is connected with a pair of string-shaped antenna elements integrated with the earphone cables. The earphone cables are insulated from the antenna elements and the audio cable is insulated from the coaxial cable. This provides a dipole antenna device and an earphone antenna device hardly influenced by noises from the wireless communication terminal device and noises transmitted via the audio cable. Further, a wireless communication terminal device to be connected with the antenna devices is provided.

Dipole antenna device, earphone antenna device, and wireless communication terminal device connected to the device

A receiver apparatushas a digital circuit portionthat converts a compressed digital signal outputted from a digital demodulating portioninto digital video and audio signals and a video/audio output circuitthat converts the digital video and audio signals outputted from the digital circuit portioninto analog video and audio signals. With this configuration, a video/audio processing IC for digital signal processing no longer needs to be mounted on the circuit board of a video display apparatus, and thus a receiver system can be realized with a video display apparatus having a simple configuration.

Receiver apparatus and receiver system

Receiver apparatus for outputting digital video and audio signals and receiver system incorporating the receiver apparatus

The tuner structure of the present invention includes: a circuit board on which electronic circuit components such as transistors and resistors have been mounted; a chassis angle; and a shield cover. In the tuner structure, a feedthrough capacitor for inputting/outputting a power, a control signal and the like is mounted to a metal plate disposed in parallel to the circuit board.

Tuner structure and cable modem tuner using the same

An outdoor unit low noise converter for satellite broadcast reception use and 2-band low noise converter (LNB: Low Noise Block Downconverter), the so-called 2-band LNB for receiving two frequency bands. The low noise converter is capable of receiving a plurality of bands in one converter. The 2-band LNB has terminals as many as those of the LNB of one band by placing of power supply voltages upon the IF output.

Outdoor unit low noise converter for satellite broadcast reception use

Growing community of inventors

Osaka, Japan

Miyoshi Yamauchi