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:
Oct. 31, 1978
Filed:
May. 23, 1977
Applicant:
Inventor:
Colin C Oliver, Slough, GB;
Assignee:
EMI Limited, Middlesex, GB;
Primary Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
250403 ; 250355 ; 2504 / ;
Abstract
In a radiographic apparatus in which a scanning X-ray tube is used it is desirable to properly relate the scanning of the X-ray origin with other scanning motions of the apparatus. In this arrangement a scan progress detector is inserted partly into the radiation to detect its scan motion. In one eXample it is a collimator block to provide a sinusoidal output as the scan progresses. Pulses derived from the sinusoid are compared with signals representing an ideal scan and the differences between them used to correct the source scan control.