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:
Jan. 03, 2023
Filed:
Apr. 30, 2021
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Rakul Viswanath, Bengaluru, IN;
Sachin Aithal, Bengaluru, IN;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01);
U.S. Cl.
CPC ...
G01J 1/44 (2013.01); G01J 2001/442 (2013.01); G01J 2001/444 (2013.01); G01J 2001/448 (2013.01);
Abstract
An analog front-end circuit includes an array of pixel circuits. Each pixel circuit includes an event counter and a power consumption circuit. The event counter is configured to count photons incident at the pixel circuit. The power compensation circuit includes an event rate circuit and a current sink circuit. The event rate circuit is configured to determine a rate of photon detection events at the pixel circuit. The current sink circuit is configured to pass a compensation current selected based on the rate of photon detection events at the pixel circuit.