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. 08, 2010
Filed:
Jan. 14, 2005
Erik Gosuinus Petrus Schuijers, Eindhoven, NL;
Andreas Johannes Gerrits, Eindhoven, NL;
Arnoldus Werner Johannes Oomen, Eindhoven, NL;
Erik Gosuinus Petrus Schuijers, Eindhoven, NL;
Andreas Johannes Gerrits, Eindhoven, NL;
Arnoldus Werner Johannes Oomen, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A decoder receives () a bitstream comprising an encoded mono signal and stereo data. A time scale processor () generates a time scaled mono signal. A time-to frequency processor generates frequency sample blocks of the time scaled signal, the block length being fixed and independent of the time scaling. A parametric stereo decoder () generates a stereo signal for the frequency sample blocks and these are converted to the time domain by a frequency-to-time processor (). A synchronization processor () synchronizes the stereo data with the time scaled signal by determining a time association between a parameter value and a frequency sample block. The parameter value and time association is used to determine synchronized stereo parameter values for that and other frequency sample blocks. The invention is particularly suitable for low complexity generation of time scaled stereo signals from MPEG-4 encoded signals.