JPS6390372U - - Google Patents
Info
- Publication number
- JPS6390372U JPS6390372U JP18566086U JP18566086U JPS6390372U JP S6390372 U JPS6390372 U JP S6390372U JP 18566086 U JP18566086 U JP 18566086U JP 18566086 U JP18566086 U JP 18566086U JP S6390372 U JPS6390372 U JP S6390372U
- Authority
- JP
- Japan
- Prior art keywords
- pattern information
- clock
- variable
- composite video
- signal
- 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
- 239000002131 composite material Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Studio Circuits (AREA)
Description
第1図Aは、本考案の実施例を示すブロツク回
路図、第1図Bは、同期信号のタイミングを示す
波形図、第2図は、従来例を示すブロツク回路図
である。
主要部分の符号の説明、6…発振回路、20,
22…スイツチ、21…分周回路。
FIG. 1A is a block circuit diagram showing an embodiment of the present invention, FIG. 1B is a waveform diagram showing the timing of a synchronizing signal, and FIG. 2 is a block circuit diagram showing a conventional example. Explanation of symbols of main parts, 6...Oscillation circuit, 20,
22...Switch, 21...Frequency dividing circuit.
Claims (1)
オ信号を2次元画像として表示する一方、割込ん
で供給されるパターン情報信号を優先的に表示す
る表示手段に前記パターン情報信号を1水平走査
区間中の1部に相当するタイミングにて供給する
パターン情報発生装置であつて、前記コンポジツ
トビデオ信号から分離した水平同期信号を可変分
周比にて分周する可変分周手段と、可変周期にて
クロツクパルスを発生する可変クロツク発生手段
と、該分周水平同期信号と前記クロツクパルスと
に基づいて前記タイミングを定めるタイミング設
定手段と、前記可変分周回路の分周比と前記可変
クロツク発生手段のクロツク周波数を互いに反比
例するように変化させる調整手段を備えることを
特徴とするパターン情報発生装置。 While displaying a composite video signal including horizontal and vertical synchronizing signals as a two-dimensional image, the pattern information signal is displayed at one point in one horizontal scanning section on a display means that preferentially displays the pattern information signal that is supplied by interruption. The pattern information generating device supplies the pattern information at a timing corresponding to the composite video signal, and includes variable frequency dividing means for frequency dividing the horizontal synchronizing signal separated from the composite video signal at a variable frequency division ratio, and a clock pulse at a variable period. a variable clock generating means for generating a clock, a timing setting means for determining the timing based on the divided horizontal synchronizing signal and the clock pulse, and a timing setting means for setting the frequency division ratio of the variable frequency dividing circuit and the clock frequency of the variable clock generating means to each other. A pattern information generating device characterized by comprising an adjusting means for changing it in inverse proportion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18566086U JPS6390372U (en) | 1986-12-01 | 1986-12-01 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18566086U JPS6390372U (en) | 1986-12-01 | 1986-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6390372U true JPS6390372U (en) | 1988-06-11 |
Family
ID=31134497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18566086U Pending JPS6390372U (en) | 1986-12-01 | 1986-12-01 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6390372U (en) |
-
1986
- 1986-12-01 JP JP18566086U patent/JPS6390372U/ja active Pending
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