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. 28, 2020
Filed:
Dec. 20, 2018
Applicant:
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Inventors:
Yuta Takagi, Tokyo, JP;
Yuji Goda, Tokyo, JP;
Assignee:
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2010.01); H05B 45/40 (2020.01); H01L 27/15 (2006.01); H01L 25/16 (2006.01); H01L 31/12 (2006.01); H05B 45/10 (2020.01); H01L 31/02 (2006.01);
U.S. Cl.
CPC ...
H05B 45/40 (2020.01); H01L 25/167 (2013.01); H01L 27/15 (2013.01); H01L 31/02019 (2013.01); H01L 31/12 (2013.01); H01L 31/125 (2013.01); H05B 45/10 (2020.01); H01L 2924/1011 (2013.01); H01L 2924/12 (2013.01);
Abstract
A light-emitting/receiving device including: a diode-type light-emitting element formed on a semiconductor substrate; a diode-type light-receiving element formed on the semiconductor substrate; a light source driving unit configured to supply a first common voltage to an anode or a cathode of the light-emitting element to drive the light-emitting element; and a light signal processing unit configured to perform current/voltage conversion on an output current outputted from the light-receiving element, by referring to a second common voltage.