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. 27, 2021
Filed:
Feb. 27, 2018
Applicant:
Xiamen Ux High-speed Ic Co., Ltd., Fujian, CN;
Inventor:
Shaoheng Lin, Xiamen, CN;
Assignee:
XIAMEN UX HIGH-SPEED IC CO., LTD., Fujian, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/60 (2013.01); H04B 10/69 (2013.01); H04B 10/25 (2013.01); H04B 10/079 (2013.01); H03F 3/08 (2006.01); G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
H04B 10/69 (2013.01); H04B 10/0799 (2013.01); H04B 10/25 (2013.01); G01J 1/44 (2013.01); H03F 3/08 (2013.01); H04B 10/60 (2013.01); H04B 10/691 (2013.01); H04B 10/693 (2013.01);
Abstract
Provided in the invention is a circuit for multiplexing an MON pin of a receiver optical sub-assembly for optical communication. Through a first clamping circuit, the high precision of a whole monitoring dynamic range is kept. Through a second clamping circuit, a voltage of the MON pin is clamped into an input voltage Vcont_in of the second clamping circuit, so that an external control signal Vcont_in is copied and input into the trans-impedance amplifier, and then the Vcont_in is converted into various control variables through a comparator or analog-to-digital converter.