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:
May. 11, 1982
Filed:
Feb. 22, 1980
Applicant:
Inventor:
Richard G Gillard, Uxbridge, GB;
Assignee:
EMI Limited, Hayes, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05C / ; A61B / ;
U.S. Cl.
CPC ...
250403 ; 2504 / ;
Abstract
A technique for ensuring the rapid correction of both amplitude and offset errors in the deflectional movement of an electron beam along an X-ray emissive target is disclosed. The movement is monitored at at least two positions during a sweep and differences, between the two movements and a desired movement, at these positions are combined in unequal proportions to produce a corrective servo signal.