Patent · US Expired

Directivity display device and method

US4298965A · kind A · utility

3Cited by
2References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 25, 1979
Grant dateNov 3, 1981
Priority date
Expiry dateOct 25, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R13/22
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A directivity display device and method are disclosed which involve a first saw-tooth generator producing a scan signal and a brilliance modulation circuit producing a brilliance modulated signal derived from the characteristic output of a test object with respect to a rotational angle of the test object. Thereby, the directivity display device makes it possible to display in graphic form a property of the test on a cathode-ray tube with a polar or other coordinate representation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.