Document Type and Number:
Japanese Patent JPS5440948
Kind Code:
B1
Abstract:
A distortion meter for indicating the distortion of a telegraphic signal includes a cathode ray tube, a deflection control arrangement for deflecting the electron beam to form the pattern of a closed polygon on the screen of the cathode ray tube, the length of the perimeter of the closed polygon corresponding to a prescribed degree of distortion and a beam control arrangement for controlling the electron beam to trace that portion of the polygon pattern corresponding to a measured degree of distortion.
Application Number:
JP7592571A
Publication Date:
December 06, 1979
Filing Date:
September 30, 1971
Export Citation:
International Classes:
H04L12/26; H04L25/04; (IPC1-7): G01R29/00; G01R13/20