Quadraphonic passive four-channel decoder

Details Quadraphonic passive four-channel decoder Quadraphonic passive four-channel decoder

1972-12-05

1977-07-05

Olms, Douglas W.

1791004ST, H04R 500

Patent

active

040341585

ABSTRACT:
A quadraphonic decoder is described for providing connections between a stereo amplifier and four loudspeakers. Two signals each comprising in-phase and out-of-phase components are applied from the amplifier to the speakers by the decoder so that these four separable components are each reproduced by a different loudspeaker. Means are provided for trapping out-of-phase signal components off the speakers reproducing in-phase signal information. A different network is provided to allow the speakers reproducing out-of-phase signals to operate independently. Means are also provided for damping out all but the out-of-phase signal components on the speakers, so that the presence of such signal components may be detected.

REFERENCES:
patent: 3397286 (1968-08-01), Prewitt
patent: 3697692 (1972-10-01), Hafler
patent: 3958085 (1976-05-01), Barber et al.
Dyna Quadraphonic Type II High Fidelity Magazine, Feb. 71.
A New Quadraphonic System by Hafler, Audio Magazine, July 1970.

Affiliated with

Also associated with

Rating

Quadraphonic passive four-channel decoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quadraphonic passive four-channel decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quadraphonic passive four-channel decoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-578887