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. 05, 2010
Filed:
Jun. 18, 2006
Takayuki Nakamura, Tokyo, JP;
Takashi Sekino, Tokyo, JP;
Takayuki Nakamura, Tokyo, JP;
Takashi Sekino, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A jitter generating circuit wherein a simple structure can be used to generate a pattern effect jitter. A jitter generating circuitcomprises a driver input circuitthat serves as a signal analyzing unit for analyzing the contents of the signal pattern of an input signal; a plurality of gain adjusting circuits; a plurality of lowpass filters; a plurality of adders; an adder; and a driver output circuitthat outputs a signal obtained by adjusting, in accordance with a signal analysis result, the phase of the input signal in such a direction in which the change timing deviates when the input signal is transmitted to the transmission line. Thus, the phase of an input signal is adjusted, thereby adding the jitter to the input signal.