Video noise analyzer

Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Parameter related to the reproduction or fidelity of a...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

378 982, G01R 2926

Patent

active

055370470

ABSTRACT:
A noise analyzer apparatus for a video signal produced by an X-ray imaging system corresponding to an image generates, in response to vertical and horizontal sync pulses, a two-level gating signal which is at a predetermined level solely during the times that intensity information contained in the video signal corresponds to pixels in an adjustably positionable window area of the image. A gated noise measuring circuit responsive to intensity information contained in the video signal and to the gating signal forms a signal which is a measure of a noise content solely within the window area of the image. A signal combiner combines the video signal and a signal derived from the gating signal to produce an augmented video signal containing in its intensity information a marker indicating the location of the window area. The augmented video signal is fed to a display from which the operator may observe the repositioning of the window area in the image as vertical and horizontal time delays introduced in the noise analyzer are adjusted.

REFERENCES:
patent: 2595646 (1952-05-01), Doba et al.
patent: 4710761 (1987-12-01), Kapur et al.
patent: 4894851 (1990-01-01), Kroon et al.
patent: 5067142 (1991-11-01), Gall et al.
patent: 5144430 (1992-09-01), Boelart
patent: 5202671 (1993-04-01), Aranda et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Video noise analyzer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video noise analyzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video noise analyzer will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1787127

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.