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:
Apr. 18, 2006
Filed:
Jan. 13, 2004
Haruhiko Ueno, Sabae, JP;
Kazuyuki Doshita, Yokohama, JP;
Haruhiko Ueno, Sabae, JP;
Kazuyuki Doshita, Yokohama, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
In a method of selecting a suitable noise suppression component, an input signal to a digital circuit including a transmitter IC, a noise suppression filter, a transmission line, and a receiver IC is expanded by Fourier expansion so as to express the input signal in terms of a series sum of sine waves. The Fourier-expanded input signal and the circuit constants of the digital circuit are used to calculate a signal on the input side of the receiver IC. Similar calculation is performed for all possible filters to assign scores for each of fundamental and harmonic components of the signal, while considering both the noise suppressing effect and the signal waveform quality. Total scores are calculated, and the filters are ranked from a high score to a low score.