JPH03111073U

JPH03111073U -

Info

Publication number: JPH03111073U
Application number: JP2012890U
Authority: JP
Priority date: 1990-02-28
Filing date: 1990-02-28
Publication date: 1991-11-14
Anticipated expiration: 2005-02-28
Also published as: JP2539786Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例による映像信号伝送
装置を示すブロツク図、第２図は動きベクトル検
出回路の動作の説明に供する略線図、第３図は画
像重畳処理部分を示すブロツク図、第４図はデコ
ーダ回路を示すブロツク図、第５図は従来の画像
合成方法を示すブロツク図、第６図はその合成画
像を示す略線図である。１０……映像信号伝送装置、１４，５２……ビ
デオ信号処理回路、１６……動きベクトル検出回
路、１８，５０……デコーダ回路、６０……アナ
ログデイジタル変換回路、６３，６６，７８，８
０，８２，９０，９２……フレームメモリ回路、
９４……デイジタルアナログ変換回路。 FIG. 1 is a block diagram showing a video signal transmission device according to an embodiment of the present invention, FIG. 2 is a schematic diagram illustrating the operation of a motion vector detection circuit, and FIG. 3 is a block diagram showing an image superimposition processing section. , FIG. 4 is a block diagram showing a decoder circuit, FIG. 5 is a block diagram showing a conventional image synthesis method, and FIG. 6 is a schematic diagram showing the synthesized image. 10... Video signal transmission device, 14, 52... Video signal processing circuit, 16... Motion vector detection circuit, 18, 50... Decoder circuit, 60... Analog-digital conversion circuit, 63, 66, 78, 8
0, 82, 90, 92... frame memory circuit,
94...Digital-to-analog conversion circuit.

Claims

[Claims for Utility Model Registration] An analog-to-digital conversion circuit for converting an input video signal into a digital video signal; storing the digital video signal in a first frame memory circuit and reading it out at a predetermined timing;
a format conversion circuit that converts the digital video signal into image data in a predetermined format; a motion vector detection circuit that detects a motion vector of the image data based on predetermined reference image data; an encoding circuit that encodes image data to generate transmission data; and a second frame memory circuit that decodes the transmission data and stores it in a second frame memory circuit, reads it out at a predetermined timing, and converts the reference image data into the motion vector. a transmission decoder circuit that outputs to the detection circuit; a reception decoder circuit that decodes transmission data arriving from the transmission target to create reception image data; and after storing the reception image data in a third frame memory circuit, Read at the specified timing,
a format inverse conversion circuit that converts the received image data into the format of the digital video signal and outputs the received digital video signal; and a digital-to-analog conversion circuit that converts the received digital video signal into an analog signal; When storing image data in the third frame memory circuit, at a predetermined timing, instead of the received image data, the image data output from the first frame memory circuit or the second frame memory circuit is stored.
the reference image data outputted from the frame memory circuit of the first frame memory circuit;
A video signal transmission device characterized in that it displays an image of the image data output from the frame memory circuit or an image of the reference image data output from the second frame memory circuit.