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Complementary-pair equalizer
   
Document Number
US Patent 7024006
Issued Date
April 4, 2006
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Abstract
A method and apparatus are described which reduce the presence of an unwanted signal. According to one embodiment, a first signal is provided from a desired location that includes an unwanted signal while a second signal is provided from an alternate location (e.g., one where the unwanted signal is less of a proportion of the total signal). The first and alternate signals are provided to respective signal processors. A level for a selected frequency band of the first and alternate signals is adjusted so that an increase in one results in a decrease in the other. Doing so allows the frequncy band that includes the unwanted signal to be reduced in the desired first signal and filled in with a similar frequency band from the alternate signal.
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Number of Claims:
25
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Owner
Schwartz; Stephen R. (Providence, RI)
Published
April 4, 2006
Application Number
09/344,299
Filed
June 24, 1999
US Classification
381/98   381/71.1 381/94.7
Int'l Classification
A61F   11/06   (20060101)  
Attorney/Law Firm
USPTO Field of Search
381/94.1   381/94.2   381/94.7   381/943   381/71.13   381/98   381/99   381/100   381/71.8   381/71.1   381/103   381/92   381/71.14   381/941   381/101   381/102   381/1   381/17  
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