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.

Date of Patent:
Jan. 27, 1998

Filed:

Dec. 22, 1995
Applicant:
Inventors:

Petrus N Vis, Eindhoven, NL;

Rudolf Kemner, Eindhoven, NL;

Edwin A Montie, Eindhoven, NL;

Alfred Ketting, Eindhoven, NL;

Adriaan J Hoeven, Eindhoven, NL;

Assignee:

U.S. Philips Corporation, New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315383 ; 315 131 ; 348809 ; 348563 ;
Abstract

A phosphor screen in a display device is scanned by separate electron beams in order to generate images of different frequency content in one color in substantially the same part of the phosphor screen. The different images can be perceived as a composite image for some time. The individual electron beams can be modulated by means of a cathode modulator on the basis of a high frequency and a low frequency component of an electronic image signal or on the basis of an image component and a text component of an electronic image signal. The modulations of the individual electron beams may be slightly delayed relative to one another in order to avoid overloading of the phosphor material.


Find Patent Forward Citations

Vis, Petrus. (1998). Crt display device comprising a filter in the cathode modulator (U.S. Patent No. 5712538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5712538

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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