Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2006-03-07
2006-03-07
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S117000, C714S740000
Reexamination Certificate
active
07010444
ABSTRACT:
A clock generating unit generates a clock signal having a predetermined frequency. A pattern generating unit outputs a data signal having a predetermined pattern in which one frame is configured from a predetermined bit length, so as to be synchronized with the clock signal. A waveform information acquiring unit receives the data signal as a data signal to be measured, and receives the clock signal, and acquires information of waveform in the same time domain of the data signal to be measured and the clock signal. An averaging processing unit carries out averaging processing on an acquired waveform. A phase difference detecting unit detects a phase difference of the data signal to be measured and the clock signal, for each bit, based on an averaged waveform information. A frequency band limiting processing unit carries out predetermined frequency band limiting processing on the per-bit phase difference information. A measured result outputting unit outputs the phase difference information as pattern dependent jitter.
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Agilent: “Frequency Agile Jitter Measurement System” Application Note 1267, Online!, Aug. 22, 2002, XP002275149, Retrieved from the Internet: URL:http://cp.literature.agilent.com/litweb/pdf/5988-5610EN.pdf on Mar. 25, 2004.
Agilent: “Jitter Separation—50 Mb/s to Over 40 Gb/s Using the Agilent 86100C Infiniium DCA-J” Application Note, Online!, Dec. 9, 2003, XP002275150, Retrieved from the Internet: UR::http://we/home/agilent.com/upload/cmc—upload/All/ DCAjwhitepaper 3.pdf on Mar. 25, 2004.
Ishibe Kazuhiko
Nishikobara Tadanori
Anritsu Corporation
Frishauf Holtz Goodman & Chick P.C.
Le John H.
Nghiem Michael
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