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1. WO1994003920 - AUTOMATIC MONITOR ALIGNMENT SYSTEM

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Publication Number WO/1994/003920
Publication Date 17.02.1994
International Application No. PCT/US1993/007236
International Filing Date 02.08.1993
Chapter 2 Demand Filed 24.02.1994
IPC
H04N 3/233 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
3Scanning details of television systems; Combination thereof with generation of supply voltages
10by means not exclusively optical-mechanical
16by deflecting electron beam in cathode-ray tube
22Circuits for controlling dimensions, shape or centering of picture on screen
23Distortion correction, e.g. for pincushion distortion correction, S-correction
233using active elements
H04N 17/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
17Diagnosis, testing or measuring for television systems or their details
02for colour television signals
CPC
H04N 17/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
17Diagnosis, testing or measuring for television systems or their details
02for colour television signals
H04N 3/2335
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
3Scanning details of television systems; Combination thereof with generation of supply voltages
10by means not exclusively optical-mechanical
16by deflecting electron beam in cathode-ray tube ; , e.g. scanning corrections
22Circuits for controlling dimensions, shape or centering of picture on screen
23Distortion correction, e.g. for pincushion distortion correction, S-correction
233using active elements
2335with calculating means
Applicants
  • CAPETRONIC COMPUTER USA (HK) INC. [US]/[US]
Inventors
  • WILKES, Derek
  • SHAUFL, Robert
  • DEITMEYER, Stan
Agents
  • RUBEN, Bradley, N.
Priority Data
07/924,30703.08.1992US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AUTOMATIC MONITOR ALIGNMENT SYSTEM
(FR) SYSTEME D'ALIGNEMENT AUTOMATIQUE DE MONITEUR
Abstract
(EN)
A control system for a display monitor (210) that includes pre-stored distortion correcting waveforms in digital memory. An internal command processor (200) controls the timed output of the stored correction waveforms as converted into analog form for combination with a video image signal in timed relationship so that the corrective values in each waveform act to cancel distortions associated with the processing of the video signal on the selected monitor. The correction waveforms are generated during the manufacturing of the display monitor by a feedback system (110) that measures monitor display distortion and calculates corrective parameters for the distortion which are then stored in addressable locations. This provides a comprehensive correction for distortions that were previously nearly impossible to remove.
(FR)
Système de commande pour un moniteur d'affichage (210) qui comprend des formes d'ondes de correction de distorsion prémémorisées dans une mémoire numérique. Un processeur de commande interne (200) commande la sortie synchronisée des formes d'ondes de correction mémorisées converties sous une forme analogique afin de la combiner à un signal d'image vidéo selon un rapport synchronisé, de sorte que les valeurs correctrices dans chaque forme d'onde agissent de façon à supprimer les distorsions associées au traitement du signal vidéo sur le moniteur choisi. Les formes d'onde de correction sont générées au cours de la fabrication du moniteur par un système de réaction (110) qui mesure la distorsion de l'affichage du moniteur et calcule des paramètres de correction, pour la distorsion, qui sont alors mémorisés dans des emplacements adressables. Ceci permet de corriger de manière complète des distorsions qui étaient jusqu'ici presque impossibles à supprimer.
Also published as
MXPA/a/1993/004651
Latest bibliographic data on file with the International Bureau
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