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. 31, 1995
Filed:
Jul. 21, 1993
Akio Yamanishi, Hyogo, JP;
Kenji Hamaguri, Osaka, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
The object of this invention is to provide an extremely simple device to extract information to distinguish between obstructive apnea and central apnea and which performs this operation automatically based on the extracted information. The device is equipped with analog signal processor 2 for generating pulse wave signals based on light received from a light emitting means and passing through or reflecting off living tissue; pulse wave base line analog signal processor 9 for extracting change components of a base line of the generated pulse wave signal; and master microcomputer 6 for distinguishing between obstructive apnea and central apnea on the basis of the extracted pulse wave base line change components.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile