Virtual multichannel speaker system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo speaker arrangement

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S303000, C381S103000, C381S017000

Reexamination Certificate

active

07113609

ABSTRACT:
A virtual multichannel sound system is presented to improve audio reproduction by statically or dynamically conforming signal processing to specific speaker characteristics and/or arrangements. According to one such aspect, one or more dynamic signal processing algorithms driving two or more speakers are altered in response to the relative physical characteristics or arrangements of these speakers, where parameter information for these algorithms is either factory set, user input, or automatically supplied to the processor. Examples of such relative speaker differences include speaker spacing or alignment, speaker or enclosure compliance, and enclosure configuration. Another aspect is to alter the processing algorithms in response to common speaker characteristics for certain conditions of input signals. An example of this aspect is to alter the signal processing to improve bass response as a function of bass content in the signals being presented to the speakers and speaker size as well as relative speaker position.

REFERENCES:
patent: 3104729 (1963-09-01), Olson
patent: 3236949 (1966-02-01), Atal et al.
patent: 4450322 (1984-05-01), Wilson
patent: 4823391 (1989-04-01), Schwartz
patent: 4888809 (1989-12-01), Knibbeler
patent: 5386478 (1995-01-01), Plunkett
patent: 5404406 (1995-04-01), Fuchigami et al.
patent: 5521981 (1996-05-01), Gehring
patent: 5553149 (1996-09-01), Freadman
patent: 5581626 (1996-12-01), Palmer
patent: 5661808 (1997-08-01), Klayman
patent: 5727066 (1998-03-01), Elliott et al.
patent: 5751815 (1998-05-01), Philp et al.
patent: 5798922 (1998-08-01), Wood et al.
patent: 5802180 (1998-09-01), Abel et al.
patent: 5809149 (1998-09-01), Cashion et al.
patent: 5812674 (1998-09-01), Jot et al.
patent: 5815578 (1998-09-01), Foster et al.
patent: 5838800 (1998-11-01), Lowe et al.
patent: 5862227 (1999-01-01), Orduña-Bustamante et al.
patent: 6169806 (2001-01-01), Kimura et al.
patent: 6195435 (2001-02-01), Kitamura
patent: 40 27 338 (1992-03-01), None
patent: 43 07 490 (1994-09-01), None
patent: 1 183 911 (2004-08-01), None
patent: WO9401981 (1994-01-01), None
Bauer, B.B., “Stereophonic Earphones and Binaural Loudspeakers,”Journal of The Audio Engineering Society, vol. 9, No. 2 (Apr. 1961), pp. 148-151.
Audio Engineering Society UK DSP Conference, Held Sep. 14-15, 1992—Kensington Town Hall—London, Chairman: Rhonda Wilson, “Multichannel Signal Processing Techniques in the Reproduction of Sound,” Section: 1. Multi-Channel Inverse Filtering Using a Lease Squares Formulation, pp. 155-174.
International Searching Authority, PCT Application No. PCT/US00/13415 on May 16, 2000.

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

Virtual multichannel speaker system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Virtual multichannel speaker system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual multichannel speaker system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3614509

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