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:
Apr. 14, 2020

Filed:

Feb. 12, 2018
Applicant:

University of Maryland, College Park, College Park, MD (US);

Inventors:

Min Wu, Clarksville, MD (US);

Adi Hajj-Ahmad, College Park, MD (US);

Hui Su, College Park, MD (US);

Assignee:

UNIVERSITY OF MARYLAND, COLLEGE PARK, College Park, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 27/28 (2006.01); H04N 9/82 (2006.01); G11B 27/11 (2006.01); H04N 5/913 (2006.01); G11B 20/10 (2006.01); G11B 20/00 (2006.01);
U.S. Cl.
CPC ...
H04N 9/8205 (2013.01); G11B 27/11 (2013.01); G11B 27/28 (2013.01); H04N 5/913 (2013.01); G11B 20/00884 (2013.01); G11B 2020/10564 (2013.01); H04N 2005/91335 (2013.01);
Abstract

Various systems and methods may benefit from determination of environmental signatures in recordings. For example, such signatures may aid forensic analysis and alignment of media recordings, such as alignment of audio or video recordings. A method can include extracting electric network frequency signals from an image sequence of a video recording or an audio recording. The method can also include synchronizing the video recording or the audio recording with at least one other datum based on the electric network frequency signals.


Find Patent Forward Citations

Loading…