Processing

Please wait...

Settings

Settings

Goto Application

1. US20120249873 - Video signal processing apparatus

Office
United States of America
Application Number 13132992
Application Date 22.12.2010
Publication Number 20120249873
Publication Date 04.10.2012
Grant Number 08325274
Grant Date 04.12.2012
Publication Kind B2
IPC
H04N 7/01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
01Conversion of standards
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 Panasonic Corporation
Inventors Kuwabara Takashi
Mizuguchi Yuji
Umei Toshitomo
Shimura Takuma
Agents RatnerPrestia
Priority Data 2009-294174 25.12.2009 JP
Title
(EN) Video signal processing apparatus
Abstract
(EN)

The object is to provide a video signal processing apparatus capable of minimizing overtaking of fields of a video signal and continuous display of the video signal of the same field and reducing degradation in image quality of the output video signal. The apparatus has a field signal holding section 9 which holds the value of an input field signal and outputs the held value as a held value signal and a readout determination section 10 which determines the video signal of the field to be read out, and which outputs the determined signal as a readout field signal. The field signal holding section 9 holds the value of the input field signal a plurality of times with every occurrence of the readout field signal period, and outputs a held value signal constituted of the plurality of values of the input field signal held. The readout determination section 10 determines the video signal of the field to be read out from a frame memory 4 on the basis of the value of the held value signal in the current readout field period and the value of the held value signal in the immediately preceding readout field period.

Also published as