JPS63192783U - - Google Patents
Info
- Publication number
- JPS63192783U JPS63192783U JP8333987U JP8333987U JPS63192783U JP S63192783 U JPS63192783 U JP S63192783U JP 8333987 U JP8333987 U JP 8333987U JP 8333987 U JP8333987 U JP 8333987U JP S63192783 U JPS63192783 U JP S63192783U
- Authority
- JP
- Japan
- Prior art keywords
- horizontal
- circuit
- oscillation
- frequency
- oscillation frequency
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
Landscapes
- Synchronizing For Television (AREA)
- Television Systems (AREA)
Description
第１図は本考案の一実施例に係る倍速テレビの
水平回路の回路図である。第２図ａは通常のノン
インターレス方式による水平走査画面、第２図ｂ
は倍速テレビによるノンインターレス方式による
水平走査画面、第３図ａは第２図ａに対応する通
常の合成映像信号の波形図、第３図ｂは第２図ｂ
に対応する合成映像信号の波形図、第４図は従来
例の回路図である。
図中、符号４……ＡＦＣ回路、６……発振回路
、８……発振周波数変換手段、１０……水平ドラ
イブ回路、１２……フライバツクトランス、１６
……分周回路。
FIG. 1 is a circuit diagram of a horizontal circuit of a double speed television according to an embodiment of the present invention. Figure 2a is a horizontal scanning screen using the normal non-interlaced method, Figure 2b
is a horizontal scanning screen using the non-interlace method of double-speed television, Figure 3a is a waveform diagram of a normal composite video signal corresponding to Figure 2a, and Figure 3b is Figure 2b.
FIG. 4 is a waveform diagram of a composite video signal corresponding to FIG. 4, which is a circuit diagram of a conventional example. In the figure, reference numeral 4...AFC circuit, 6...Oscillation circuit, 8...Oscillation frequency conversion means, 10...Horizontal drive circuit, 12...Flyback transformer, 16
...Frequency divider circuit.
Claims (1)
と、比較信号とをそれぞれ与えられて、両信号の
位相差に従う自動周波数制御信号を出力するＡＦ
Ｃ回路と、 所定の水平発振周波数で発振動作を行い、かつ
、前記ＡＦＣ回路の自動周波数制御信号によつて
その発振動作を制御される発振回路と、 前記発振回路からの発振出力を、前記所定の水
平発振周波数の２倍の水平発振周波数に変えて出
力する発振周波数変換手段と、 前記発振周波数変換手段からの発振出力に応答
動作する水平ドライブ回路と、 前記水平ドライブ回路の水平ドライブ出力を与
えられるフライバツクトランスと、 前記フライバツクトランスからのフライバツク
パルスを１／２分周するとともに、その分周出力
を前記比較信号として前記ＡＦＣ回路に対して入
力する分周回路 とを具備したことを特徴とする倍速テレビの水平
回路。[Claims for Utility Model Registration] An AF that receives a horizontal synchronization signal synchronously separated from a composite video signal and a comparison signal, and outputs an automatic frequency control signal according to the phase difference between the two signals.
C circuit; an oscillation circuit that performs an oscillation operation at a predetermined horizontal oscillation frequency and whose oscillation operation is controlled by an automatic frequency control signal of the AFC circuit; oscillation frequency conversion means for changing the horizontal oscillation frequency to twice the horizontal oscillation frequency and outputting the horizontal oscillation frequency; a horizontal drive circuit that operates in response to the oscillation output from the oscillation frequency conversion means; and providing a horizontal drive output of the horizontal drive circuit. and a frequency dividing circuit that divides the frequency of the flyback pulse from the flyback transformer into 1/2 and inputs the frequency-divided output to the AFC circuit as the comparison signal. The horizontal circuit of double-speed television is a feature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8333987U JPH0635573Y2 (en) | 1987-05-29 | 1987-05-29 | Horizontal circuit of double speed TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8333987U JPH0635573Y2 (en) | 1987-05-29 | 1987-05-29 | Horizontal circuit of double speed TV |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63192783U true JPS63192783U (en) | 1988-12-12 |
| JPH0635573Y2 JPH0635573Y2 (en) | 1994-09-14 |
Family
ID=30936835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8333987U Expired - Lifetime JPH0635573Y2 (en) | 1987-05-29 | 1987-05-29 | Horizontal circuit of double speed TV |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635573Y2 (en) |
-
1987
- 1987-05-29 JP JP8333987U patent/JPH0635573Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635573Y2 (en) | 1994-09-14 |
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