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:
Sep. 01, 2009
Filed:
Sep. 30, 2004
Sadao Omata, Chiyoda-ku, JP;
Sadao Omata, Chiyoda-ku, JP;
Nihon University, Tokyo, JP;
Abstract
A biological property check device includes a plurality of probes () each having a light emitting element () for applying light to a biological tissue and a light reception element () for detecting the reflected light. Each probe () is successively selected by a switch circuit () under control of a control section () and connected to a property calculation section (). The property calculation section () includes a phase shift circuit for changing the frequency according to the phase difference between the input waveform to the light emitting element () and the output waveform from the light reception element (). According to the frequency change, the property of the biological tissue is calculated. The property calculated is displayed on a display section () via a data collection section () and a display processing section ().