Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Reexamination Certificate
2004-06-02
2009-02-03
Chin, Vivian (Department: 2615)
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
C381S013000, C381S002000
Reexamination Certificate
active
07486796
ABSTRACT:
A stereo receiver of a simple structure is disclosed capable of continuously controlling the degree of separation of left and right voice signals in accordance with the level of electric field strength. The stereo receiver comprises electric field strength detecting means9for detecting the electric field strength of a received signal, and a stereo demodulation circuit5for outputting original voice signals of left and right channels. A blend circuit6is provided for blending the original voice signals with each other to output blended voice signals of the left and right channels. The degree of blending between the original voice signals is continuously changed correspondingly to the electric field strength. As a result, the S/N, which may deteriorate when the electric field strength is low, can be improved with a simple structure.
REFERENCES:
patent: 4480520 (1984-11-01), Gold
patent: 5113446 (1992-05-01), Kennedy
patent: 7-28270 (1995-03-01), None
patent: 6-41398 (1995-10-01), None
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Chin Vivian
Tran Con P
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