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:
Jul. 07, 1987
Filed:
Dec. 05, 1984
Nils-Robert Roschier, Vantaa, FI;
Elevator GmbH, Baar, CH;
Abstract
A procedure and an apparatus for producing an image based on contrast discrimination in an image forming apparatus with one-dimensional or multidimensional image field. For accomplishing a novel image forming system, specifically employable in small format image forming applications, the image signals obtained from the image forming points produce an electric current in the image forming channel connected to each image forming point, this current exerting an influence on the current passing from the tapping point of the image forming channel to said channel, and on the voltage produced at said tapping point, in the way that their product is proportional to the image signal current, and wherein the output of image forming is a frequency which is proportional to the current, and wherein the desired contrast heightening is achieved by supplying externally a suitable current to an interaction network connecting the tapping points of one or more image forming channels by suitably selected impedances, and wherein the frequencies obtained from each image forming channel constitute the starting point for the image forming cycle.