Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kai-Ting Lee0
Tien-Ju Tsai0
Date of Patent
May 17, 2011
0Patent Application Number
114604490
Date Filed
July 27, 2006
0Patent Primary Examiner
Patent abstract
A noise reduction system is used in a BTSC system to reduce noise of an audio signal. The noise reduction system has an audio spectral compressing unit that has a filter and a memory in the approach of the digital processing. The filter is arranged to filter an input signal according to a transfer function, a variable d, and several parameters b0/a0, a0/b0, b1/b0 and a1/a0. The memory is arranged to store the parameters.
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