Invention Grant
- Patent Title: Apparatus for and method of measuring cross-correlation coefficient between signals
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Application No.: US09826295Application Date: 2001-04-03
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Publication No.: US06594595B2Publication Date: 2003-07-15
- Inventor: Takahiro Yamaguchi , Masahiro Ishida , Mani Soma
- Applicant: Takahiro Yamaguchi , Masahiro Ishida , Mani Soma
- Main IPC: G01R1300
- IPC: G01R1300

Abstract:
Timing jitter sequences &Dgr;&phgr;j[n] and &Dgr;&phgr;k[n] of respective clock signals under measurement xj(t) and xk(t) are obtained, and a covariance &sgr;tj,tk=(1/N)&Sgr;i=1N&Dgr;&phgr;j[i]·&Dgr;&phgr;k[i] is obtained. In addition, root-mean-square values &sgr;tj and &sgr;tk of the respective &Dgr;&phgr;j[n] and &Dgr;&phgr;k[n] are obtained, and a cross-correlation coefficient &rgr;=&sgr;tj,tk/(&sgr;tj·&sgr;tk) between the xj(t) and xk(t) is calculated.
Public/Granted literature
- US20030018442A1 Apparatus for and method of measuring cross-correlation coefficient between signals Public/Granted day:2003-01-23
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