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1. WO2011077722 - VIDEO SIGNAL PROCESSING DEVICE

Publication Number WO/2011/077722
Publication Date 30.06.2011
International Application No. PCT/JP2010/007444
International Filing Date 22.12.2010
IPC
H04N 7/01 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
01Conversion of standards
G09G 5/00 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G09G 5/391 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
36characterised by the display of individual graphic patterns using a bit-mapped memory
39Control of the bit-mapped memory
391Resolution modifying circuits, e.g. variable screen formats
H04N 5/073 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
04Synchronising
06Generation of synchronising signals
067Arrangements or circuits at the transmitter end
073for mutually locking plural sources of synchronising signals, e.g. studios or relay stations
CPC
G09G 5/395
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
5Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
36characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
39Control of the bit-mapped memory
395Arrangements specially adapted for transferring the contents of the bit-mapped memory to the screen
H04N 7/0127
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
01Conversion of standards ; , e.g. involving analogue television standards or digital television standards processed at pixel level
0127by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
Applicants
  • パナソニック株式会社 Panasonic Corporation [JP]/[JP] (AllExceptUS)
  • 桑原 崇 KUWABARA, Takashi (UsOnly)
  • 水口 裕二 MIZUGUCHI, Yuji (UsOnly)
  • 梅井 俊智 UMEI, Toshitomo (UsOnly)
  • 志村 拓真 SHIMURA, Takuma (UsOnly)
Inventors
  • 桑原 崇 KUWABARA, Takashi
  • 水口 裕二 MIZUGUCHI, Yuji
  • 梅井 俊智 UMEI, Toshitomo
  • 志村 拓真 SHIMURA, Takuma
Agents
  • 大野 聖二 OHNO, Seiji
Priority Data
2009-29417425.12.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) VIDEO SIGNAL PROCESSING DEVICE
(FR) DISPOSITIF DE TRAITEMENT DU SIGNAL VIDÉO
(JA) 映像信号処理装置
Abstract
(EN)
Disclosed is a video processing device capable of minimizing skipping of fields in a video signal and continuous display of a video signal of a given field, thereby reducing degradation of image quality in an outputted video signal. The video processing device comprises a field signal retaining unit (9), which retains inputted field signal values and outputs same as retained value signals; and a read assessment unit (10), which assesses read field video signals and outputs same as read field signals. The field signal retaining unit (9) retains inputted field signal values across a plurality of iterations on a per read field signal period basis, and outputs retained value signals constituted from the plurality of retained inputted field signal values. The read assessment unit (10) assesses read field video signals that are read from a frame memory (4), on the basis of the value of the retained value signal of the current read field period and the value of the retained value signal of the read field period immediately previous thereto.
(FR)
La présente invention concerne un dispositif de traitement vidéo capable de minimiser le saut de champs dans un signal vidéo et d'afficher en continu un signal vidéo d'un champ donné, réduisant ainsi la dégradation de la qualité d'image dans un signal vidéo sorti. Le dispositif de traitement vidéo comprend une unité de mémorisation de signal de champ (9) qui retient les valeurs de signal entrées et ressort les signaux de même valeur que celle mémorisée; et une unité d'analyse de lecture (10) qui analyse les signaux vidéo de champ lu et ressort les mêmes signaux que ceux des champs lus. L'unité de mémorisation de signal de champ (9) retient les valeurs de signal entrées à travers une pluralité d'itérations sur une base de période de signal par champ lu et ressort des signaux de même valeur que celle mémorisée constitués à partir de la pluralité de valeurs de signal entrées mémorisées. L'unité d'analyse de lecture (10) analyse les signaux vidéo de champ lu qui sont lus à partir de la mémoire d'image (4), sur la base de la valeur du signal de valeur mémorisé de la période de champ lu en cours et de la valeur du signal de valeur mémorisé de la période de champ lu la précédant immédiatement.
(JA)
映像信号のフィールドの追越し、および、同じフィールドの映像信号の連続表示を最小限に抑え、出力する映像信号の画質劣化を低減できる映像処理装置を提供することを目的とする。入力フィールド信号の値を保持し保持値信号として出力するフィールド信号保持部9と、読出すフィールドの映像信号を判定して読出フィールド信号として出力する読出判定部10とを備え、フィールド信号保持部9は、読出フィールド信号の周期ごとに複数回にわたり入力フィールド信号の値を保持し、保持した複数の入力フィールド信号の値からなる保持値信号を出力し、読出判定部10は、現在の読出フィールド周期における保持値信号の値と、1つ前の読出フィールド周期における保持値信号の値とに基づいてフレームメモリ4から読出すフィールドの映像信号を判定する。
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