Expandable multi-dimensional sound circuit

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04R 500

Patent

active

056384521

ABSTRACT:
An expandable multi-dimensional sound system has two modes of operation. Prior to the detection of a 20 kHz tone, the system is configured such that input audio panned hard to the left or right will result in the center and surround channels steering down so that the signal is only passed through the left front and right front channels, respectively. Mono information is fed only through the center channel, as the left and right front channels cancel any center channel or mono information. Material panned hard to the surround position steers down the front left and right channels and is only fed to the rear surround channels. No information is fed to the front center channel due to the fact that the signal contains only difference information. Directional steering to the rear channels is still provided in the absence of any hard broadband left or right panning. Upon the detection of a 20 kHz tone, the system is re-configured such that the left and right front channels and the center channel become disabled. The overhead channel becomes enabled, and the surround channels are not attenuated under hard broadband left or right panning conditions. Center information is fed through the overhead channel, while hard left information appears at the left rear channel and hard right information appears at the right rear channel. Upon the detection of a second 20 kHz tone, the system reverts back to its original operating configuration.

REFERENCES:
patent: 4905283 (1990-02-01), Ishikawa
patent: 4953213 (1990-08-01), Tasaki et al.
patent: 5077797 (1991-12-01), Ishikawa
patent: 5199075 (1993-03-01), Fosgate
patent: 5319713 (1994-06-01), Waller, Jr. et al.

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

Expandable multi-dimensional sound circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandable multi-dimensional sound circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable multi-dimensional sound circuit will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-771476

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