Sound system with isolation of dimensional sub-speakers

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United States of America Patent

PATENT NO 4759066
SERIAL NO

07054480

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A loudspeaker system for reproducing stereophonic sound having an expanded acoustic image has left and right main speakers and left and right dimensional speakers. The main speakers are fed the right and left channel signals R and L and the dimensional speakers are fed the difference signals R - L and L - R. Interspeaker cabling includes one or more transformers used to develop and couple the difference signals to the dimensional speakers, which serve as isolation means and also suppress the -R and -L components of the difference signals for low frequencies. The loudspeaker system is particularly suited for automobile installations where the main speakers are in front and the dimensional speakers in the rear of the automobile interior, or vice versa.

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Patent Owner(s)

Patent OwnerAddress
MERRILL LYNCH BUSINESS FINANCIAL SERVICES INC222 NORTH LASALLE STREET CHICAGO IL 60601

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Campbell, Colin B Baltimore, MD 5 87
Polk, Matthew S Baltimore, MD 13 354

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