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1. WO1991000669 - CIRCUIT FOR CORRECTING VIDEO SIGNAL TIME-BASE

Publication Number WO/1991/000669
Publication Date 10.01.1991
International Application No. PCT/JP1990/000860
International Filing Date 03.07.1990
Chapter 2 Demand Filed 02.02.1991
IPC
H04N 9/89 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
89Time-base error compensation
H04N 9/893 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
89Time-base error compensation
893using an analogue memory, e.g. a CCD-shift register, the delay of which is controlled by a voltage controlled oscillator
H04N 9/898 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
898using frequency multiplication of the reproduced colour signal with another auxiliary reproduced signal, e.g. a pilot signal carrier
CPC
H04N 9/89
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
89Time-base error compensation
H04N 9/893
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
89Time-base error compensation
893using an analogue memory, e.g. a CCD shift register, the delay of which is controlled by a voltage controlled oscillator
H04N 9/898
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
9Details of colour television systems
79Processing of colour television signals in connection with recording
87Regeneration of colour television signals
898using frequency multiplication of the reproduced colour signal carrier with another auxiliary reproduced signal, e.g. a pilot signal carrier
Applicants
  • YOKOMIZO, Akira [JP/JP]; JP
  • SATO, Chikahiro [JP/JP]; JP (UsOnly)
Inventors
  • YOKOMIZO, Akira; JP
  • SATO, Chikahiro; JP
Priority Data
1/17115304.07.1989JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CIRCUIT FOR CORRECTING VIDEO SIGNAL TIME-BASE
(FR) CIRCUIT DE CORRECTION DE LA BASE DE TEMPS DE SIGNAUX VIDEO
Abstract
(EN)
A signal representing the average phase position of a horizontal synchronizing signal included in a video signal that is added, and another signal representing the phase position of a burst signal whose phase changes depending on change of time-base of the video signal are produced. The time difference between these signals is found by a delay time selecting circuit, and the delay time is changed according to the time difference in order to correct the time-base of the video signal quickly and correctly.
(FR)
On produit un signal représentant la position de phase moyenne d'un signal de synchronisation horizontale inclus dans un signal vidéo qui est ajouté, ainsi qu'un autre signal représentant la position de phase d'une rafale de signaux dont les changements de phase dépendent du changement de la base de temps du signal vidéo. La différence de temps entre ces signaux est déterminée par un circuit de sélection de temps de retard, et le temps de retard est modifié en fonction de cette différence de temps, de façon à corriger la base de temps du signal vidéo rapidement et de façon correcte.
Also published as
Latest bibliographic data on file with the International Bureau