The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 1998
Filed:
Jul. 24, 1995
Masato Nanboku, Hirakata, JP;
Toshiaki Yoshiyasu, Katano, JP;
Koji Oono, Neyagawa, JP;
Takashi Saeki, Kirakata, JP;
Takayuki Nii, Toyonaka, JP;
Atsushi Misawa, Kadoma, JP;
Masahiro Nagata, Higashiosaka, JP;
Yasunori Kasho, Katano, JP;
Matsushita Electric Works. Ltd., Osaka, JP;
Abstract
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.