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:
Jul. 20, 2021
Filed:
Jan. 11, 2016
University of Tennessee Research Foundation, Knoxville, TN (US);
Ut-battelle, Llc, Oak Ridge, TN (US);
Jidong Chai, Knoxville, TN (US);
Yilu Liu, Knoxville, TN (US);
Jiecheng Zhao, Knoxville, TN (US);
Wenxuan Yao, Knoxville, TN (US);
Thomas J. King, Oak Ridge, TN (US);
UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION, Knoxville, TN (US);
UT-BATTELLE, LLC, Oak Ridge, TN (US);
Abstract
Systems and methods for detecting a tampering and identifying a location of a digital recording are provided. A frequency sequence and a phase angle sequence may be extracted from the digital recording. A portion of the frequency sequence may be matched to one of a plurality of reference frequency sequences, and a portion of the phase angle sequence may be matched to one of a plurality of reference phase angle sequences. Tampering of the digital recording may be detected when the frequency and phase sequences differ from the matched reference sequences. Moreover, a noise sequence may be extracted from the extracted frequency sequence. A location of the digital recording may be identified by matching the noise sequence to one of a plurality of noise sequences of the plurality of reference frequency sequences.