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:
Nov. 19, 2024
Filed:
Sep. 03, 2022
Applicant:
Chian Chiu LI, Fremont, CA (US);
Inventor:
Chian Chiu Li, Fremont, CA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01);
U.S. Cl.
CPC ...
G01J 1/4257 (2013.01);
Abstract
Methods and apparatus for detecting weak beams and single photons. A reference beam interferes with a weak beam to generate an output beam. Characteristics such as propagation direction of the output beam are used to detect the weak beam.