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. 07, 2021
Filed:
Aug. 30, 2018
Hrl Laboratories, Llc, Malibu, CA (US);
Charles E. Martin, Santa Monica, CA (US);
Soheil Kolouri, Calabasas, CA (US);
Heiko Hoffmann, Simi Valley, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
Described is an audio classification system for classifying audio signals. In operation, the system extracts salient patches from an intensity spectrogram of an audio signal. Thereafter, multi-scale global average pooling (GAP) features are extracted for all salient patches. The GAP features are clustered, with each cluster becoming a key attribute. A test audio signal can then be mapped onto a histogram of key attributes. Based on the histogram, the test audio signal can then be classified as a sound class, allowing for operation of a device based on the classification of the sound class.