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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS5440948
Kind Code:
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:
Publication Date:
December 06, 1979
Filing Date:
September 30, 1971
Export Citation:
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International Classes:
H04L12/26; H04L25/04; (IPC1-7): G01R29/00; G01R13/20

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