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:
Nov. 29, 1983
Filed:
Jan. 26, 1982
Hiroaki Tanaka, Okazaki, JP;
Sigeyuki Akita, Okazaki, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A rotation detection apparatus has a first input side disk plate having first and second circumferentially arranged electrodes. An output side second disk plate has electrodes arranged in a circumferential direction to oppose the first plate. One of the disk plates is stationary and one is rotatable. A circuit is provided for supplying a periodic signal of a predetermined period to the first and second electrodes of the first plate. A rotation signal generating circuit is provided for detecting a phase condition between the signal at the electrodes of the second plate and the signal from the periodic signal supplying circuit and generating a rotation signal. A signal transmission device is also provided for transmitting a signal between the rotating plate and the stationary plate.