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.

Date of Patent:
Oct. 16, 2018

Filed:

Sep. 04, 2015
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Cheng-Che Chen, New Taipei, TW;

Mu-Hsing Wu, Zhubei, TW;

Yu-Ming Wei, Kaohsiung, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/40 (2006.01); G02B 7/08 (2006.01); G01S 15/08 (2006.01); G01S 15/02 (2006.01); G01S 15/42 (2006.01); H04N 5/232 (2006.01); G01S 7/52 (2006.01);
U.S. Cl.
CPC ...
G02B 7/40 (2013.01); G01S 7/52004 (2013.01); G01S 15/08 (2013.01); G02B 7/08 (2013.01); H04N 5/23212 (2013.01);
Abstract

A method for focusing on an object to capture an image of that object is provided. The method includes obtaining the travel time between the point in time that an ultrasonic signal is sent and the point in time at which the reflected signal is received. The method also includes obtaining environment information of the electronic device based on location/position information. The method further includes determining local sound speed according to environment information and determining the distance to an object using the local sound speed and the travel time. In addition, the method can include focusing on the object according to the object distance.


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