JPH02128465U - - Google Patents
Info
- Publication number
- JPH02128465U JPH02128465U JP3561589U JP3561589U JPH02128465U JP H02128465 U JPH02128465 U JP H02128465U JP 3561589 U JP3561589 U JP 3561589U JP 3561589 U JP3561589 U JP 3561589U JP H02128465 U JPH02128465 U JP H02128465U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- dynamic focus
- average value
- original 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
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図はこの考案に係るダイナミツクフオーカ
ス回路の一実施例を示す回路図、第２図、第３図
は第１図の実施例の動作を説明するタイムチヤー
ト、第４図はこの考案によつて得られるフオーカ
ス電圧と絵柄の関係を示す説明図、第５図はスタ
テイクフオーカス方式を説明する回路図、第６図
はダイナミツクフオーカス方式を説明する回路図
、第７図はダイナミツクフオーカス方式における
電圧調整作業を説明する波形図、第８図は輝度追
従形ダイナミツクフオーカス方式を説明す特性図
、第９図は従来のフオーカス電圧と絵柄の関係を
説明する説明図である。
１１……フライバツクトランス、１３……可変
抵抗器、１４……昇圧トランス、１５……結合コ
ンデンサ、１６……フオーカス電極、１７……映
像ドライブ信号入力端子、１８……平均値出力回
路、１９……増幅回路、２０……スイツチ、２１
……加算回路、２２……増幅回路、１７ａ……映
像ドライブ信号、２０ｂ……スイツチング制御信
号。
Fig. 1 is a circuit diagram showing an embodiment of the dynamic focus circuit according to this invention, Figs. 2 and 3 are time charts explaining the operation of the embodiment of Fig. 1, and Fig. 4 is a circuit diagram showing an embodiment of the dynamic focus circuit according to this invention. Figure 5 is a circuit diagram explaining the static focus method, Figure 6 is a circuit diagram explaining the dynamic focus method, and Figure 7 is an explanatory diagram showing the relationship between the focus voltage and the pattern obtained by A waveform diagram explaining the voltage adjustment work in the dynamic focus method, FIG. 8 is a characteristic diagram explaining the luminance tracking type dynamic focus method, and FIG. 9 is an explanatory diagram explaining the relationship between the conventional focus voltage and the pattern. It is. 11... Flyback transformer, 13... Variable resistor, 14... Step-up transformer, 15... Coupling capacitor, 16... Focus electrode, 17... Video drive signal input terminal, 18... Average value output circuit, 19 ...Amplification circuit, 20...Switch, 21
...Addition circuit, 22...Amplification circuit, 17a...Video drive signal, 20b...Switching control signal.
Claims (1)
発生する原信号発生源と、 この原信号発生源からの信号の平均値電圧を出
力する平均値出力回路と、 この平均値出力回路の出力を所定の増幅率で増
幅する増幅回路と、 この増幅回路からの信号のゲート回路であつて
、帰線期間に前記増幅回路からの信号を通過し、
この通過期間の走査期間に対する割合が前記増幅
率に略等しいスイツチと、 前記原信号発生源からの信号と前記スイツチを
通過した信号とを合成する加算回路とを具備し、 前記加算回路の出力によつてダイナミツクフオ
ーカス電圧を形成するようにしたことを特徴とす
るダイナミツクフオーカス回路。[Scope of Claim for Utility Model Registration] An original signal generation source that generates an original signal for dynamic focus voltage generation, an average value output circuit that outputs an average value voltage of the signal from this original signal generation source, and this average value an amplifier circuit that amplifies the output of the value output circuit by a predetermined amplification factor; and a gate circuit for the signal from the amplifier circuit, which passes the signal from the amplifier circuit during the retrace period;
a switch in which the ratio of the passing period to the scanning period is approximately equal to the amplification factor; and an adder circuit for combining the signal from the original signal generation source and the signal passed through the switch, the output of the adder circuit being A dynamic focus circuit is characterized in that it forms a dynamic focus voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3561589U JPH02128465U (en) | 1989-03-30 | 1989-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3561589U JPH02128465U (en) | 1989-03-30 | 1989-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02128465U true JPH02128465U (en) | 1990-10-23 |
Family
ID=31541124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3561589U Pending JPH02128465U (en) | 1989-03-30 | 1989-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02128465U (en) |
-
1989
- 1989-03-30 JP JP3561589U patent/JPH02128465U/ja active Pending
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