JPS6052781U - Digital video signal generator - Google Patents
Digital video signal generatorInfo
- Publication number
- JPS6052781U JPS6052781U JP14482383U JP14482383U JPS6052781U JP S6052781 U JPS6052781 U JP S6052781U JP 14482383 U JP14482383 U JP 14482383U JP 14482383 U JP14482383 U JP 14482383U JP S6052781 U JPS6052781 U JP S6052781U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- signal
- memory blocks
- circuit
- signal generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Color Television Image Signal Generators (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のデジタル形ビデオ信号発生装置の一例の
要部を示すブロック図、第２図は本考案゛の一実施例の
要部のブロック図、第３図は第２図の動作を説明するた
めのタイムチャート、第４図は本考案の他の実施例の要
部のブロック図である。
１・・・サンプリング信号発振回路、４・・・デジタル
／アナログ変換回路、５・・・分周回路、６・・・メモ
リブロック、７・・・アクセス信号発生回路、８・・・
パラレル／シリアル変換回路、９・・・方式設定回路、
１０・・・デコー蛇゛、１１・・・バッファメモリ。FIG. 1 is a block diagram showing the main parts of an example of a conventional digital video signal generator, FIG. 2 is a block diagram of the main parts of an embodiment of the present invention, and FIG. 3 shows the operation of FIG. A time chart for explanation and FIG. 4 is a block diagram of main parts of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Sampling signal oscillation circuit, 4... Digital/analog conversion circuit, 5... Frequency division circuit, 6... Memory block, 7... Access signal generation circuit, 8...
Parallel/serial conversion circuit, 9... system setting circuit,
10...Decoding snake, 11...Buffer memory.
Claims (1)
する発振回路と、このサンプリング信号を１／ｎ（ｎは
２以上の整数）に分周する分周回路と、サンプリング信
号の周期に応じて分割された１水平走査線のビデオ信号
波形の位相及び振幅に関連したデジタルデータを順次分
散、して格納するｎ個のメモリブロックと、分周回路の
出力信号に基づいてメモリブロックを時分割的にアクセ
スする信号を発生するアクセス信号発生回路と、これら
メモリブロックから時分割的に読み出されたデジタルデ
ータをビデオ信号に変換するデジタル／アナログ変換回
路とで構成されたことを特徴とするデジタル形ビデオ信
号発生装置。An oscillation circuit that generates a sampling signal with a frequency four times that of the color subcarrier signal, a frequency dividing circuit that divides this sampling signal into 1/n (n is an integer of 2 or more), and n memory blocks that sequentially distribute and store digital data related to the phase and amplitude of the divided video signal waveform of one horizontal scanning line; A digital type comprising an access signal generation circuit that generates a signal for accessing the memory blocks, and a digital/analog conversion circuit that converts digital data read out in a time-divisional manner from these memory blocks into a video signal. Video signal generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14482383U JPS6052781U (en) | 1983-09-19 | 1983-09-19 | Digital video signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14482383U JPS6052781U (en) | 1983-09-19 | 1983-09-19 | Digital video signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6052781U true JPS6052781U (en) | 1985-04-13 |
Family
ID=30322848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14482383U Pending JPS6052781U (en) | 1983-09-19 | 1983-09-19 | Digital video signal generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6052781U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162580A (en) * | 1980-05-19 | 1981-12-14 | Sony Corp | Pll circuit |
-
1983
- 1983-09-19 JP JP14482383U patent/JPS6052781U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56162580A (en) * | 1980-05-19 | 1981-12-14 | Sony Corp | Pll circuit |
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