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:
Sep. 11, 2018
Filed:
Jun. 20, 2016
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Yunhong Li, Santa Clara, CA (US);
David P. Magee, Allen, TX (US);
Stephen John Fedigan, Plano, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01); B08B 7/02 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
B08B 7/028 (2013.01); G02B 27/0006 (2013.01);
Abstract
Disclosed examples include ultrasonic lens cleaning systems and driver circuits to clean a lens using four or more transducer segments mechanically coupled to the lens, in which the driver circuit provides phase shifted oscillating signals to the transducer segments to generate a mechanical traveling wave rotating around the center axis of the lens to vibrate the lens for improved ultrasonic cleaning.