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. 25, 2023
Filed:
Dec. 14, 2020
Applicant:
Mqa Limited, London, GB;
Inventors:
Peter Graham Craven, Haslemere, GB;
John Robert Stuart, Cambridge, GB;
Assignee:
MQA LIMITED, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 19/26 (2013.01); G10L 21/038 (2013.01); G10L 19/02 (2013.01); G10L 19/022 (2013.01); G10L 19/03 (2013.01);
U.S. Cl.
CPC ...
G10L 19/26 (2013.01); G10L 19/022 (2013.01); G10L 19/0204 (2013.01); G10L 19/03 (2013.01); G10L 21/038 (2013.01);
Abstract
Encoding and decoding systems are described for the provision of high quality digital representations of audio signals with particular attention to the correct perceptual rendering of fast transients at modest sample rates. This is achieved by optimising downsampling and upsampling filters to minimise the length of the impulse response while adequately attenuating alias products that have been found perceptually harmful.