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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.:

US 10753906 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Aug. 08, 2017

System and method using sound signal for material and texture identification for augmented reality

Applicant:

Pcms Holdings, Inc., Wilmington, DE (US);

Inventors:

Hyun Oh Oh, Seoul, KR;

Jin Sam Kwak, Uiwang-si, KR;

JuHyung Son, Uiwang-si, KR;

Assignee:

PCMS Holdings, Inc., Wilmington, DE (US);

Attorney:

Invention Mine LLC

Primary Examiner:

Michelle Chin

Int. Cl.
CPC ...
G01N 29/11 (2006.01); G01N 29/44 (2006.01); G06F 3/14 (2006.01); G01N 29/34 (2006.01); G01N 29/38 (2006.01); G01S 7/539 (2006.01); G06F 3/01 (2006.01); G01S 15/89 (2006.01); G06K 9/40 (2006.01); G01S 15/86 (2020.01); G01S 17/04 (2020.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G01N 29/11 (2013.01); G01N 29/348 (2013.01); G01N 29/38 (2013.01); G01N 29/4463 (2013.01); G01S 7/539 (2013.01); G01S 15/86 (2020.01); G01S 15/89 (2013.01); G01S 17/04 (2020.01); G06F 3/011 (2013.01); G06F 3/14 (2013.01); G06K 9/40 (2013.01); G01N 2291/028 (2013.01); G01N 2291/0289 (2013.01); G01N 2291/045 (2013.01); G06K 9/00671 (2013.01);
Abstract

Systems and methods are described for determining a material of an object using sound. Exemplary methods employ a head-mounted display (HMD). In an embodiment, the method includes determining, using a depth camera function of the HMD, a distance to an object; emitting, using a speaker of the AR HMD, a generated sound signal; and responsive to emitting the sound signal, detecting a reflected sound signal. Relative to the emitted sound signal, the HMD determines attenuation levels for a temporal portion of the reflected sound signal for at least two frequency ranges of the reflected sound signal, the temporal portion of the reflected sound signal corresponding to a computed round-trip travel time of the sound signal traveling the determined distance to and from the object. Based upon the determined attenuation levels, the determines a material corresponding to the attenuation levels.

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