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:
Jan. 02, 2007
Filed:
Apr. 09, 2003
Naoya Tokunaga, Osaka, JP;
Naoya Tokunaga, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a tapin a shift register of a waveform equalizer, data of an input signal is stored in a data storing FF. A tap coefficient computing unitcalculates a tap coefficient, which is stored in a tap coefficient storing FFand output to an absolute value computing unit. The unitobtains the absolute value of the tap coefficient. A comparatorcompares the absolute value to a threshold value. A masking unitmasks and outputs the data from the data storing FFto a multiplierif the absolute value is smaller than the threshold value, while outputting the data from the data storing FFwithout change if the absolute value is no less than the threshold value. The multipliermultiplies the data of the input signal by the tap coefficient and outputs a signal to an adder