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:
Apr. 27, 2010
Filed:
Nov. 05, 2004
Yasuji Ogawa, Tsukuba, JP;
Yasuji Ogawa, Tsukuba, JP;
Xiroku, Inc., , JP;
Abstract
The object of the present invention is to provide a pressure detecting apparatus that is less affected from noises and can be constructed in a large size. The pressure detecting apparatus according to the present invention utilizes electromagnetic coupling. The sensor section comprises first coils, second coilsprovided on the first coils such that they are superimposed to each other, and a first cushion memberprovided between the first coils and the second coils. A drive circuit for driving either of the first coils and the second coils and a detection circuit for detecting pressure applied against the sensor section on the basis of signals resulting from electromagnetic coupling from the other of the first coils and the second coils are connected to the sensor section. The sensor sections are disposed in a matrix state so that measurements of pressure distribution can be effected.