Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1996-09-09
1998-04-07
Kuntz, Curtis
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
381120, 381 14, H04R 500
Patent
active
057374279
ABSTRACT:
A surround sound processor unit includes a plurality of preamplifiers, an in-phase audio decoder circuit, an out-of-phase audio decoder circuit, at least one transmitter, at least one receiver, at least one speaker amplifier, and a plurality of power amplifiers. A surround sound processor unit can take the stereo audio signal from a stereo VCR, a stereo receiver, a headphone jack, a stereo TV, or a car stereo to produce a three dimensional sound field. The left audio signal is amplified and outputed to a left front speaker. The right audio signal is amplified and outputed to a right front speaker. The in-phase audio decoding is accomplished by preamplifying the left and right audio signal, and connecting the output of the left and right preamplifiers to a singular input of a power amplifier. The output of the power amplifier drives a center channel speaker. The out-of-phase audio decoding is accomplished by inputing the left audio signal into a transmitter, and connecting the right audio signal to the ground of the transmitter. A transmitted signal is received by a receiver and amplified by a speaker amplifier which drives a rear speaker or subwoofer. The surround sound processor unit can also be configured for hard wire operation. Another preferred embodiment does not include power amplifiers, but allows the user to provide power amplifiers to their liking. Yet another preferred embodiment is a three channel add-on unit which is used in conjunction with a stereo receiver.
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Chang Vivian
Ersler Donald J.
Kuntz Curtis
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