Jitter measuring method and apparatus

Pulse or digital communications – Testing – Phase error or phase jitter

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324 7677, 371 1, H04B 346, H04B 1700, H04Q 120

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active

056920091

ABSTRACT:
A jitter measuring method and apparatus is provided which is capable of measuring jitters in serial digital signals transmitted at a high bit rate. The method and apparatus detects from a serial digital signal frequency deviations of a predetermined frequency corresponding to a predetermined period. The detected frequency deviations are converted to period deviations of the predetermined period.

REFERENCES:
patent: 5293520 (1994-03-01), Hayashi
"Avoiding the Pitfalls in Serial Digital Signal Distribution", Ron Ward, SMPTE Journal, Jan. 1993, pp. 14-23.
Catalog 1991/1992 of CD Jitter Meter LJM-1851 manufactured by Leader Electronics Corp., printed Oct. 1991.
Instruction Manual of Pulse Jitter Counter TR5834/5835 manufactured by Advantest Corp., copyright 1984, pp. 3-1 -3-14.
"A New Method of Measuring PCM jitter in Digital Audio Equipment" by Mishio Hayasi, Kouji Nakagome and Masaaki Hirose of Advantest Corp., Date draft received by the publisher Apr. 28, 1986.

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