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. 16, 2013
Filed:
Jul. 21, 2010
Applicants:
Chung-yi Su, Hsinchu, TW;
Yi-chung Lee, Hsinchu, TW;
Inventors:
Chung-Yi Su, Hsinchu, TW;
Yi-Chung Lee, Hsinchu, TW;
Assignee:
Lite-On IT Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ultrasonic system including an ultrasonic transmitter and an ultrasonic receiver is provided. The ultrasonic transmitter emits a transmission signal, which includes a synchronous burst and multiple data bursts. The ultrasonic receiver receives a synchronous echo, and determines whether the amplitude of the synchronous echo is larger than a first threshold. If the amplitude of the synchronous echo is larger than the first threshold, then the ultrasonic receiver interprets the multiple data echoes corresponding to the data bursts to obtain a digital signal.