The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2011
Filed:
Jun. 18, 2007
Shigetaka Takagi, Tokyo, JP;
Yosuke Sakai, Tokyo, JP;
Tetsuro Itakura, Tokyo, JP;
Koichiro Mashiko, Takarazuka, JP;
Shigetaka Takagi, Tokyo, JP;
Yosuke Sakai, Tokyo, JP;
Tetsuro Itakura, Tokyo, JP;
Koichiro Mashiko, Takarazuka, JP;
Semiconductor Technology Academic Research Center, Kanagawa, JP;
Abstract
A signal processing method and apparatus reducing distortion using divided signals differing in only amplitude by weighting an input signal by first weights k(i=1 to 4) to obtain divided signals, performing the same signal processing f(x) on the divided signals, weighting the signal processed divided signals by second weights l(i=1 to 4), and adding the divided signals Vto Vweighted by the second weights. The first weights are k=t, k=−t, k=1, k=−1, while the second weights are l=t, l=−t. Here, t=b/a (whereandare different positive integers).