Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent
1986-12-01
1989-12-12
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
381 4, H04H 500
Patent
active
048872970
ABSTRACT:
Multi-system or "universal" AM stereo receivers are provided which require no switching of the receiver's stereo decoder circuitry regardless of which AM stereo system signal is being received. In accordance with one aspect of the invention, acceptable stereo sound is achieved for all AM stereo systems by introducing a selected amount of distortion correction in the L-R channel of the universal receiver and a selected phase difference between the L+R and L-R channels. In addition, perceived stereo separation in AM stereo and other stereo receivers is enhanced by also properly selecting the gain in the L-R channel in relation to the L+R channel.
REFERENCES:
patent: 3219759 (1965-11-01), Dome
patent: 4018994 (1977-04-01), Kahn
patent: 4426728 (1984-01-01), Kahn
patent: 4503554 (1985-03-01), Davis
patent: 4535470 (1985-08-01), Yokoya et al.
patent: 4541109 (1985-09-01), Shimizu et al.
patent: 4637044 (1987-01-01), Rindal
patent: 4648114 (1987-03-01), Ichikawa
patent: 4707856 (1987-11-01), Tanaka et al.
patent: 4748669 (1988-05-01), Klayman
Hazeltine Corporation
Isen Forester W.
Onders E. A.
LandOfFree
Apparatus for processing stereo signals and universal AM stereo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for processing stereo signals and universal AM stereo , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for processing stereo signals and universal AM stereo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2127129