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. 29, 2004
Filed:
Nov. 09, 2000
Applicant:
Inventor:
Fengduo Hu, Cupertino, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06E 1/700 ;
U.S. Cl.
CPC ...
G06E 1/700 ;
Abstract
Digital signal processing systems and methods for smoothing out an audio signal having an abrupt transition in volume. A DSP in an audio visual recording device is configured to smooth out discontinuous volume transitions in an audio signal during encoding. Such abrupt, discontinuous changes can occur when a user instructs the recording device to pause and resume during recording or when the user changes channels during recording. The DSP applies a transform that linearly increases or decreases the volume over one or more audio frames from the first volume level to the next volume level after the abrupt change.