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:
Apr. 27, 2021
Filed:
Jun. 05, 2020
Tymphany Acoustic Technology Limited, Taipei, TW;
TYMPHANY ACOUSTIC TECHNOLOGY LIMITED, Taipei, TW;
Abstract
The present application discloses a detection method and a detection device for the audio signal, the detection method comprising one or multiple times of audio detection, the audio signal is a SPDIF signal, and each time of the audio detection comprises: a statistical sampling step, sampling the SPDIF signal based on Biphase Mark Code, and counting according to the sampled data to obtain the number of state changes or the number of state unchanges of the SPDIF signal; and a determination step, determining whether the SPDIF signal is a muted SPDIF signal according to whether the number of state changes or the number of state unchanges of the SPDIF signal is within a predetermined range. The purpose of this application is at least to achieve the music detection function of the audio signal without performing full signal decoding on the SPDIF signal.