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1. (WO1991006176) DEVICE FOR GRID CORRECTION IN A TELEVISION SET
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006176 International Application No.: PCT/EP1990/001660
Publication Date: 02.05.1991 International Filing Date: 04.10.1990
Chapter 2 Demand Filed: 28.11.1990
IPC:
H04N 3/22 (2006.01) ,H04N 9/28 (2006.01) ,H04N 17/04 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
3
Scanning details of television systems; Combination thereof with generation of supply voltages
10
by means not exclusively optical-mechanical
16
by deflecting electron beam in cathode-ray tube
22
Circuits for controlling dimensions, shape or centering of picture on screen
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
12
Picture reproducers
16
using cathode ray tubes
28
Arrangements for convergence or focusing
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
17
Diagnosis, testing or measuring for television systems or their details
04
for receivers
Applicants:
DEUTSCHE THOMSON-BRANDT GMBH [DE/DE]; D-78048 Villingen-Schwenningen, DE (AllExceptUS)
GLEIM, Günter [DE/DE]; DE (UsOnly)
CHAUVIN, Jacques [FR/DE]; DE (UsOnly)
Inventors:
GLEIM, Günter; DE
CHAUVIN, Jacques; DE
Agent:
EINSEL, Robert; Deutsche Thomson-Brandt GmbH Patent- und Lizenzabteilung Göttinger Chaussee 76 D-3000 Hannover 91, DE
Priority Data:
P 39 33 950.511.10.1989DE
Title (DE) EINRICHTUNG ZUR RASTERKORREKTUR IN EINEM FERNSEHGERÄT
(EN) DEVICE FOR GRID CORRECTION IN A TELEVISION SET
(FR) DISPOSITIF DE CORRECTION DE TRAME DANS UN TELEVISEUR
Abstract:
(DE) Für die Rasterkorrektur, z.B. Konvergenzkorrektur, ist es bekannt, für bestimmte Bildpunkte Korrekturwerte zu ermitteln und zu speichern. Aufgabe ist es, für unterschiedliche Betriebsarten mit abweichenden Korrekturwerten den Speicheraufwand zu verringern. Für eine von einer Grund-Betriebsart abweichende Betriebsart wird jeweils nur die Differenz der ermittelten Korrekturwerte zu denen der Grund-Betriebsart gespeichert. Insbesondere für die Konvergenzkorrektur in einem Projektions-Fernsehgerät.
(EN) It is known for grid correction, e.g. convergence correction, to measure and store correction values for certain pixels. The aim is to reduce the amount of storage for different operating modes with divergent correction values. For each operating mode which differs from a basic operating mode, only the difference between the respective measured correction value and that of the basic operating mode is stored. Application in particular to convergence correction in a projection television set.
(FR) On sait que pour la correction de trame, à savoir la correction de convergence, il convient de mesurer et de mémoriser des valeurs de correction pour certains pixels. Le but est de réduire l'ampleur de la mémorisation pour différents modes de fonctionnement avec des valeurs de correction divergentes. Pour chaque mode de fonctionnement qui diffère d'un mode de fonctionnement de base, seule la différence entre la valeur de correction mesurée respective et celle du mode de fonctionnement de base est mémorisée. Application notamment à la correction de convergence dans un téléviseur de projection.
Designated States: AU, BB, BG, BR, CA, FI, HU, JP, KP, KR, LK, MC, MG, MW, NO, RO, SD, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
AU1990064424