Stereophonic image enhancement devices and methods using lookup

Details Stereophonic image enhancement devices and methods using lookup Stereophonic image enhancement devices and methods using lookup

1997-03-25

1999-07-27

Wachsman, Hal Dodge

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

702 75, 702194, 381 1, 381 17, 381 18, 381 19, H04R 504

Patent

active

059307331

ABSTRACT:
A stereophonic image may be enhanced by splitting the left and right input audio signals into a plurality of left and right output signals in a plurality of audio frequency bands and then generating left and right output audio signals from the left and right output signals based on the magnitude of the differences between corresponding left and right output signals and also based upon the absolute magnitude of the left and right input audio signals themselves. In particular, a stereophonic image enhancement device according to the invention processes a left input signal and a right input signal using a first spectrum analyzer and a second spectrum analyzer which output a plurality of left output signals and right output signals corresponding to a plurality of frequency bands in response to the corresponding left input signal and right input signal. A table lookup signal is responsive to the plurality of left output signals and to the plurality of right output signals to output a plurality of left output signal pairs and a plurality of right output signal pairs. A first and second adder are responsive to the plurality of left output signal pairs and right output signal pairs respectively to add the output signal pairs and produce final left output signals and right output signals respectively.

REFERENCES:
patent: 4074083 (1978-02-01), Berkovitz et al.
patent: 4866774 (1989-09-01), Klayman
patent: 5381482 (1995-01-01), Matsumoto et al.
patent: 5386082 (1995-01-01), Higashi
patent: 5524053 (1996-06-01), Iwamatsu
patent: 5633938 (1997-05-01), Porter, III
patent: 5642423 (1997-06-01), Embree
patent: 5757927 (1998-05-01), Gerzon et al.

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