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:
Dec. 22, 2009
Filed:
Feb. 11, 2004
Takahiro Yamaguchi, Tokyo, JP;
Masahiro Ishida, Tokyo, JP;
Mani Soma, Seattle, WA (US);
Hirobumi Musha, Tokyo, JP;
Takahiro Yamaguchi, Tokyo, JP;
Masahiro Ishida, Tokyo, JP;
Mani Soma, Seattle, WA (US);
Hirobumi Musha, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A measuring apparatus including a timing jitter estimator which estimates an output timing jitter sequence which indicates the output timing jitter of an output signal based on an output signal output from a DUT in response to an input signal input to the DUT, and a jitter transfer function estimator which estimates a jitter transfer function in the DUT based on the output timing jitter sequence. The jitter transfer function estimator includes an instantaneous phase noise estimator which estimates an instant phase noise of the output signal based on an output signal, and a resampler which generates the output timing jitter sequence by resampling the instantaneous phase noise at predetermined timing.