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:
Dec. 22, 2020
Filed:
Dec. 02, 2016
Apple Inc., Cupertino, CA (US);
Gregory E. Rogers, San Jose, CA (US);
Charles L. Greenlee, Sunnyvale, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Implementations described and claimed herein provide systems, apparatuses, and methods for ultrasonic object detection. In one embodiment, a sensor includes at least two transducers driven by a common waveform generator and configured to process received echoes, from an object, using a common echo detector. By providing the wavefront 180 degrees out of phase to one transducer relative to the other transducer, a dual detection lobe may be provided and thereby provided two detection volumes. By varying the phase delay from one transducer relative to other, the detection beam (volume) may be steered or swept. Without phase delay, a relatively higher strength acoustic detection signal may be transmitted by the two or more transducers.