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:
Mar. 25, 2008
Filed:
Jul. 25, 2002
Applicants:
Kim E. Silverman, Mountain View, CA (US);
Devang K. Naik, San Jose, CA (US);
Inventors:
Kim E. Silverman, Mountain View, CA (US);
Devang K. Naik, San Jose, CA (US);
Assignee:
Apple, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speech recognition device with a frequency range with an upper frequency limit fis provided. The speech recognition device has more than two microphones with distances between the microphones, wherein the greatest common factor of the distances between the microphones is less than the speed of sound divided by f. More particularly, where the microphones are spaced a total distance, the number of the more than two microphones is less than the one half the total distance times the upper frequency limit divided by the speed of sound.