 Data acquisition system using non-linear digitization intervals |
| Accordingly, it is a general object of the present invention to provide an improved data ... |
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| High speed data acquisition system and method |
| OF THE PREFERRED EMBODIMENTS Reference will now be made to the drawings wherein like structures ... |
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| Data acquisition system and method with a selectable sampling rate |
| The present invention comprises an improved data acquisition system for digitizing and storing ... |
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| Data acquisition system comprising real-time analysis and storing means |
| OF THE INVENTION Although the circuit of the invention is particularly intended to be used in an ... |
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| Dither signal insertion inversely proportional to signal level in delta-sigma modulators |
| The foregoing and other problems are overcome and the foregoing objects and advantages are realized ... |
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| Model train control system |
| OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a model train control system 10 includes a ... |
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| Control, sound, and operating system for model trains |
| The present invention provides a model train operating, sound and control system that provides a ... |
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| Control, sound, and operating system for model trains |
| The present invention provides a model train operating, sound and control system that provides a ... |
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| Integrated circuit testing device with dual purpose analog and digital channels |
| What is claimed is: 1. An apparatus for performing tests on integrated circuits, each integrated ... |
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| Equalization system for modems in a polled arrangement |
| OF THE PREFERRED EMBODIMENTS In FIG. 1, a data processor 1 is connected to a plurality of remote ... |
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Color printing, correction, and conversion apparatus and method
| Details |
Inventors: Kivolowitz, Perry S.; Avery, Aaron M.;
Assignee: ASDG Incorporated (Madison, WI)
Primary Examiner: Groody; James J.
Assistant Examiner: Lee; Michael H.
Attorney, Agent or Firm: Gulbrandsen; Carl E.
The present disclosure describes an apparatus and method for receiving a red (R), green (G), and blue (B) color separation signal from an appropriate source such as a photo electronic scanner; acting on the RGB signal so as to convert the RGB signal to a cyan (C), magenta (M), yellow (Y), and black (K) signal in readable form for use by an appropriate four color printing device, the CMYK signal having approximately the same color ratio as the RGB signal and outputting said CMYK signal to the four color printing device such that the printed image will have approximately the same color ratio as the original RGB image. |
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT While this invention is susceptible of embodiment in many different forms, here is shown in the drawing and will herein be described in detail several specific embodiments of the invention.
It should be understood, however, that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to any specific embodiment.
FIG.
1 depicts by means of a block diagram the present embodiment of the converting device of the present invention.
The converting device 30 may be a general purpose computer which has been modified according to the specifications of the present invention or it may be the control unit of a four color printing device in which case parts 30 and 31 would be combined.
In the present invention, the converting device 30 comprises a first buffer 41 for receiving and storing until needed RGB data of a digitized RGB color separation signal.
Such signal may be produced by a photo electronic scanner 50, a color video camera or it may be generated by the converting device itself, using, for example, a color graphics design program which has been intalled in the read only memory 44 of the converting device 30.
The converting device further comprises a central processing unit (CPU) 42 which controls the overall operation of the converting device 30; a random access memory (RAM) 45 which provides work space for the CPU 42; as before mentioned, a read only memory (ROM) 44 for storing fixed information and a second buffer 46 for receiving and outputting the CMYK signal to an appropriate four color printer engine 60.
Like the UCR method, the method of the present invention contemplates the use of black (K) ink to assist in the reproduction of neutral tones.
The present invention also contemplates that where black ink (K) is added, some colored (CMY) ink will necessarily be removed.
Unlike the UCR method, the present invention determines the amount of colored (CMY) ink removed by reference to the saturation of the color at a given point
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