Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1983-04-20
1986-06-10
Hickey, R. J.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
381 24, 381 86, H04B 100, H04R 500
Patent
active
045947295
ABSTRACT:
In providing stereophonic reproduction of sound in the passenger space of a motor vehicle, a pair of speakers are located at the opposite ends of the dashboard ahead of the driver, one for reproducing the left signal of a sound recording and the other for reproducing the right signal. In addition, at least one of a summation signal made up of the left signal and the right signal is provided from a speaker located at the dashboard between the pair of speakers, and a differential signal, made up of the left signal and the right signal, is directed forwardly from the rear of the passenger space. Further, the differential signal can be made up only of middle and lower frequencies supplied to one rear speaker with another rear speaker turned 90.degree. relative to the one rear speaker and radiating the differential signal to opposite sides of the passenger space. An electronic delay can be incorporated into the rear speakers.
REFERENCES:
patent: 3491204 (1970-01-01), Sherno
patent: 3892917 (1975-07-01), Sotome
patent: 3959590 (1976-05-01), Scheiber
patent: 4132859 (1979-01-01), Ranga
"Separates for Your Car", High Fidelity Magazine, Dec. 1978, Angus, pp. 87-89.
"S 608 AM-FM/8 Track Player", Stereo Catalog 1979, pub. by Ziff-Davis Pub. Co., p. 136.
Radio Shack Catalog, 1980, p. 70.
Hickey R. J.
Neutrik Aktiengesellschaft
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