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US 4,363,037 AGranted
Apparatus and process for recording an image free of line structure
AssigneeDr. Ing. Rudolf Hell GmbH
InventorHeinz Taudt
Life of this patent
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Abstract
An apparatus and a process for the recording of an image free of any line structure includes sensing an image along a set of successive scanning lines, converting light values of the scanning lines into electrical signals, processing the electrical signals, and converting the processed electrical signals into a set of successive recorded lines, predetermined groups of recorded lines corresponding to selected scanning lines.
Claims7
In a process for line-by-line recording of an image with the aid of an intermediate memory,
- the steps comprising:
- generating scanning signals by sensing the light values of the image along successive, substantially adjacent scanning lines, each of said scanning lines having a predetermined width,
- converting the scanning signals into electrical signals,
- storing the electrical signals associated with at least one of said scanning lines in said intermediate memory,
- sequentially reading out at least two times at least a portion of the electrical signals associated with each of said scanning lines, respectively, from said intermediate memory, so as to obtain groups of successive electrical signals representing the light values for recording groups of sub-lines, each group of sub-lines corresponding to a scanning line, and
- sequentially recording said groups of sub-lines, each of said sub-lines having a width sufficiently smaller than the width of said scanning lines, so that an image substantially free of any line structure and loss in resolution is obtained.
3 more elements
An apparatus for line-by-line recording of an image without any line structure,
- comprising in combination:
- scanning means for generating scanning signals by optoelectrically scanning said image along successive, substantially adjacent scanning lines, said scanning means having a scanning beam whose diameter corresponds to the width of the scanning lines,
- converting means connected to the scanning means operable for converting said scanning signals into electrical signals,
- storing means connected to the converting means for intermediate storing of said electrical signals, and
- recording means connected to said storing means and controlled by said electrical signals for the reading out thereof from the storing means, said recording means having a recording beam of a predetermined diameter, and being operable for reproducing each scanning line as a group of adjacent sub-lines recorded successively by said recording beam, the diameter of said recording beam being sufficiently smaller than the diameter of said scanning beam so as to obtain an image substantially free of any line structure and loss in resolution.
2 more elements
Dependencies are inferred from the claim text.