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:
Jun. 12, 2012
Filed:
Jun. 05, 2003
Charles C. Jorgensen, Palo Alto, CA (US);
Diana D. Lee, Palo Alto, CA (US);
Shane T. Agabon, Millbrae, CA (US);
Charles C. Jorgensen, Palo Alto, CA (US);
Diana D. Lee, Palo Alto, CA (US);
Shane T. Agabon, Millbrae, CA (US);
Abstract
Method and system for processing and identifying a sub-audible signal formed by a source of sub-audible sounds. Sequences of samples of sub-audible sound patterns ('SASPs') for known words/phrases in a selected database are received for overlapping time intervals, and Signal Processing Transforms ('SPTs') are formed for each sample, as part of a matrix of entry values. The matrix is decomposed into contiguous, non-overlapping two-dimensional cells of entries, and neural net analysis is applied to estimate reference sets of weight coefficients that provide sums with optimal matches to reference sets of values. The reference sets of weight coefficients are used to determine a correspondence between a new (unknown) word/phrase and a word/phrase in the database.