Method of stabilizing the level of an audio signal in television

Details Method of stabilizing the level of an audio signal in television Method of stabilizing the level of an audio signal in television

1994-09-23

1998-05-12

Kuntz, Curtis

Electrical audio signal processing systems and devices

Including amplitude or volume control

381106, H03G 300

Patent

active

057518246

ABSTRACT:
To prevent particular transmission equipment from artificially increasing low level audio signals to a predetermined allowable level, such signals are first summed with a stabilization signal having a predetermined frequency to form a composite audio signal. Moreover, the stabilization signal has a level that prevents any increase in signal level that may be artificially imposed on the composite signal during the processing of the composite signal by the transmission equipment. Once the composite signal has been so processed, then the stabilization signal is removed therefrom and the original audio signal is outputted to associated transmission media.

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patent: 4314372 (1982-02-01), Bakgaard
patent: 4500921 (1985-02-01), Tomizawa
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patent: 5130665 (1992-07-01), Walden
patent: 5155769 (1992-10-01), Werrbach
patent: 5349386 (1994-09-01), Borchardt et al.
patent: 5543849 (1996-08-01), Long
patent: 5561715 (1996-10-01), Long
patent: 5615256 (1997-03-01), Yamashita

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