Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid
Patent
1989-09-26
1990-08-28
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Hearing aid
381 22, 381 27, H04R 502
Patent
active
049532138
ABSTRACT:
The invention provides surround mode stereophonic reproducing equipment for using the Dolby surround mode and another surround mode other than the Dolby mode by means of selectively switching between them. The equipment is provided with two front power amplifiers for driving front speakers on the right and left, and two rear power amplifiers for driving the rear speakers. The rear speakers are driven jointly by one of the rear power amplifiers while the center speaker is driven by the other power amplifier when using the Dolby surround mode, and the rear speakers are respectively driven by the two rear power amplifiers when using a surround mode other than the Dolby surround mode.
REFERENCES:
patent: 3697692 (1972-10-01), Hafler
patent: 4115666 (1978-09-01), Ogura
patent: 4410761 (1983-10-01), Schickedanz
patent: 4696036 (1987-09-01), Julstrom
patent: 4792974 (1988-12-01), Chace
patent: 4807217 (1989-02-01), Ide
patent: 4862502 (1989-08-01), Griesinger
Rundum-Sound fur zu Hause, Live-Atomsphare von Der Videokassette, Funkschau Videosoftware Funkschau, 17,1986, 88-92.
IEEE Spectrum, Untangling the `Quad` Confusion, by Ronald K. Jurgen, Jul. 1972, s, 55-62.
Takegawa Tomohiro
Tasaki Akira
Isen Forester W.
Pioneer Electronic Corporation
LandOfFree
Surround mode stereophonic reproducing equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surround mode stereophonic reproducing equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surround mode stereophonic reproducing equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1595535