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. 27, 1990
Filed:
Sep. 07, 1988
Makoto Kato, Kawasaki, JP;
Tetsuo Yokoyama, Tokyo, JP;
Juntaro Arima, Katsuta, JP;
Toshihiro Furuya, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An apparatus for improving the signal-to-noise ratio of a scan-type imaging system, in which an image portion which appears virtually periodically or regularly on contiguous scanning lines and a scanning line for which the improvement of signal-to-noise ratio is intended are specified using cursors, the positional differences on the image signal waveforms between the specified scanning line and scanning lines in the specified image portion are detected, and the image signal waveforms in the specified image portion are added by being shifted by the amount of detected positional differences, so that the signal-to-noise ratio of the image signal waveform of the specified scanning line is improved.