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:
Aug. 01, 2017
Filed:
Aug. 27, 2015
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Ajit Sharma, Dallas, TX (US);
Sriram Narayanan, Richardson, TX (US);
Srinath Mathur Ramaswamy, Murphy, TX (US);
Arup Polley, Richardson, TX (US);
Seung Bae Lee, Allen, TX (US);
Wen Li, McKinney, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/024 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/02427 (2013.01); A61B 5/6826 (2013.01); A61B 5/7228 (2013.01); A61B 2562/0238 (2013.01);
Abstract
The circuitry of an optical receiver reduces the ambient DC component and the pleth DC component to leave a pleth signal with substantially only a pleth AC component. The circuitry also provides gain control and can provide transmit power control to change the range of the pleth AC component to occupy a desired input range of an analog-to-digital converter.