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. 29, 2014
Filed:
Oct. 06, 2008
Jean-marc Jot, Aptos, CA (US);
Martin Walsh, Scotts Valley, CA (US);
Edward Stein, Capitola, CA (US);
Juha Oskari Merimaa, Menlo Park, CA (US);
Michael M. Goodwin, Scotts Valley, CA (US);
Jean-Marc Jot, Aptos, CA (US);
Martin Walsh, Scotts Valley, CA (US);
Edward Stein, Capitola, CA (US);
Juha Oskari Merimaa, Menlo Park, CA (US);
Michael M. Goodwin, Scotts Valley, CA (US);
Creative Technology Ltd, Singapore, SG;
Abstract
A two-channel phase-amplitude stereo encoding and decoding scheme enabling flexible and spatially accurate interactive 3-D audio reproduction via standard audio-only two-channel transmission. The encoding scheme allows associating a 2-D or 3-D positional localization to each of a plurality of sound sources by use of frequency independent inter-channel phase and amplitude differences. The decoder is based on frequency-domain spatial analysis of 2-D or 3-D directional cues in a two-channel stereo signal and re-synthesis of these cues using any preferred spatialization technique, thereby allowing faithful reproduction of positional audio cues and reverberation or ambient cues over arbitrary multi-channel loudspeaker reproduction formats or over headphones, while preserving source separation despite the intermediate encoding over only two audio channels.