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:
May. 07, 2002
Filed:
Mar. 01, 2001
Jyunichi Aizawa, Chiyoda-ku, Tokyo 100-8310, JP;
Munehisa Takeda, Chiyoda-ku, Tokyo 100-8310, JP;
Takeshi Araki, Chiyoda-ku, Tokyo 100-8310, JP;
Yoshihiro Obata, Chiyoda-ku, Tokyo 100-8310, JP;
Other;
Abstract
Non-contact signal transmission apparatus provides signal transmission between a main unit and an auxiliary unit via electromagnetic induction. A set of power cores having hollow sections are provided as a pair at corresponding positions of the main unit and the auxiliary unit. A wire is wound around each of the power cores as power coils for feeding power from the main unit to the auxiliary unit. At least one set of signal cores are provided as a pair at corresponding positions of the main unit and the auxiliary unit. A wire is wound around each of signal cores as signal coils transmitting signals between the main unit and the auxiliary unit. The signal coils are arranged in hollow sections of the power cores.