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. 21, 2020
Filed:
Nov. 13, 2018
Applicant:
Olive Healthcare Inc., Seoul, KR;
Inventors:
Assignee:
OLIVE HEALTHCARE INC., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/1455 (2006.01); G01N 21/64 (2006.01); G01N 21/31 (2006.01); G01N 21/35 (2014.01); G01N 21/49 (2006.01);
U.S. Cl.
CPC ...
G01N 21/6486 (2013.01); A61B 5/1455 (2013.01); G01N 21/31 (2013.01); G01N 21/314 (2013.01); G01N 21/35 (2013.01); G01N 21/49 (2013.01); G01N 2021/3129 (2013.01); G01N 2201/12 (2013.01);
Abstract
A signal processing device that processes a bio-signal includes a lock-in amplifier chip configured to output a frequency-modulated modulation signal and enable one or more light sources to be driven in response to the modulation signal, and a multiplexer configured to receive and multiplex light sensing signals output from the light sources and then measured by multiple light measurement units, and the lock-in amplifier chip sequentially demodulates the multiple light sensing signals transmitted through the multiplexer.