Matsushita Electric Works, Ltd.

Takayuki Nii

Takashi Saeki

Toshiaki Yoshiyasu

Hitoshi Sakakibara

Masato Nanboku

Yasunori Kasho

Hirotake Fukui

Masahiro Nagata

Atsushi Misawa

Toshiro Mishina

Koji Oono

Haruo Nakano

A moving object identification system with a novel coding scheme achieves 75% transmission efficiency. With this system, a transmittable range is expanded. Logical value assignment for residual resonant oscillations in a residual resonant signal is performed by comparing a residual frequency with a threshold frequency. A wave energy reduction of an ASK modulated signal is used to decrease the energy of the signal in order to distinguish similar residual frequencies in the case of extremely close communication. Reliability of Write/Read instructions in this system is improved by employing a test writing before an actual writing and a voltage monitoring device.

High power moving object identification system

A moving object discriminating system is arranged so that a signal transmitted from an interrogator is received by a responder where the signal received is processed at a control circuit, the processed signal is phase-modified by own stored data of the responder and returned to the interrogator as an answer signal, and the interrogator discriminates the moving object as based on the answer signal. The responder is thereby sufficiently minimized in size for achieving as improved mountability of the responder with respect to the moving object to be discriminated.

Moving object discriminating system

Growing community of inventors

Kadoma, Japan

Takayuki Nii