The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 1980
Filed:
Oct. 28, 1977
Applicant:
Inventor:
Hironori Yoshino, Takarazuka, JP;
Assignee:
Matsushita Electric Industrial Co. Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; H04B / ;
U.S. Cl.
CPC ...
324 54 ; 324 72 ; 328135 ; 328165 ;
Abstract
A corona discharge detection apparatus particularly suited for use in detecting corona signals mixed with noise which is in synchronism with a cycle of a power supply such as corona discharge which occurs in a flyback transformer of a television receiver. The noise and the corona signals are converted to a digital signal and the digital signals in two cycles are subtracted one from the other and the resulting digital signal is converted to an analog signal for observation. In this manner, a corona signal which has not been detected by a phase technique can now be detected.