Signal measurement method and signal measurement apparatus

Details Signal measurement method and signal measurement apparatus Signal measurement method and signal measurement apparatus

1996-08-26

1997-09-23

Trammell, James P.

Boots, shoes, and leggings

364487, G01R 2316

Patent

active

056711646

ABSTRACT:
A signal measurement apparatus is provided which does not require a special pattern to measure and evaluate reproduced data of a digital signal. RF data, which is binary-coded data obtained by reproducing digital recorded signal, and latch data obtained by latching the RF data in response to a reproduction clock signal reproduced by using the RF data are supplied through a signal input terminal thereof and respectively supplied to a first-pattern-length detection section and a second-pattern-length detection section so that the pattern lengths of predetermined patterns are measured. Then, a 2D display section plots the first pattern lengths on the X axis and the second pattern lengths on the Y axis to 2D-display the first and second pattern lengths.

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patent: 4818931 (1989-04-01), Naegeli et al.
patent: 5235270 (1993-08-01), Shimada et al.
patent: 5485078 (1996-01-01), Liken et al.

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