Envelope shaping of decorrelated signals

Electrical audio signal processing systems and devices – Binaural and stereophonic – Quadrasonic

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S023000, C704S219000

Reexamination Certificate

active

07983424

ABSTRACT:
The envelope of a decorrelated signal derived from an original signal can be shaped without introducing additional distortion, when a spectral flattener is used to spectrally flatten the spectrum of the decorrelated signal and the original signal prior to using the flattened spectra for deriving a gain factor describing the energy distribution between the flattened spectra, and when the so derived gain factor is used by an envelope shaper to timely shape the envelope of the decorrelated signal.

REFERENCES:
patent: 5890125 (1999-03-01), Davis et al.
patent: 6175631 (2001-01-01), Davis et al.
patent: 6708145 (2004-03-01), Liljeryd et al.
patent: 2003/0018766 (2003-01-01), Duvvuru
patent: 2006/0085200 (2006-04-01), Allamanche et al.
patent: 2006/0171542 (2006-08-01), Den Brinker et al.
patent: 2007/0071116 (2007-03-01), Oshikiri
patent: 1158494 (2001-11-01), None
patent: 2001510953 (2001-08-01), None
patent: 2002032100 (2002-01-01), None
patent: 2002536679 (2002-10-01), None
patent: 9904498 (1999-01-01), None
patent: 0045379 (2000-08-01), None
patent: 2004086817 (2004-10-01), None
patent: 2005040749 (2005-05-01), None
Herre, et al: Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS), 101stAES Convention, Nov. 8-11, 1996, Los Angeles, CA.
Taiwanese Office Action and Search Report dated Oct. 20, 2008.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Envelope shaping of decorrelated signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Envelope shaping of decorrelated signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Envelope shaping of decorrelated signals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2649948

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.