H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/262 (2006.01) H04H 60/04 (2009.01) H03G 3/00 (2006.01) H04N 5/60 (2006.01) H04N 7/04 (2006.01) H04N 9/802 (2006.01) H04N 5/38 (2006.01) H04H 7/00 (2006.01)
Patent
CA 2154194
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 toform 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.
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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