JPH0361754U - - Google Patents
Info
- Publication number
- JPH0361754U JPH0361754U JP12339589U JP12339589U JPH0361754U JP H0361754 U JPH0361754 U JP H0361754U JP 12339589 U JP12339589 U JP 12339589U JP 12339589 U JP12339589 U JP 12339589U JP H0361754 U JPH0361754 U JP H0361754U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- distortion correction
- output
- raster
- vertical
- 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
- 241000226585 Antennaria plantaginifolia Species 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案の基本的構成を示すブロツク図
、第２図ａないしｃは表示画面と各種信号との関
係を示す説明図であつて、第２図ａは左右糸巻歪
が補正された状態、第２図ｂは垂直センタを補正
して台形歪が発生した状態、第２図ｃは本考案に
より台形歪を補正した状態を各々示す、第３図は
本考案の一実施例を示す電気回路図、第４図は従
来例を示すブロツク図である。
１……垂直出力回路、２……垂直センタ補正部
、３……水平出力回路、４……左右糸巻歪補正部
、５……表示画面、６……位相調整回路、７……
パラボラ電圧出力回路。
Figure 1 is a block diagram showing the basic configuration of the present invention, Figures 2 a to c are explanatory diagrams showing the relationship between the display screen and various signals, and Figure 2 a shows the corrected left and right pincushion distortion. Fig. 2b shows a state in which the vertical center is corrected and trapezoidal distortion occurs, Fig. 2c shows a state in which the trapezoidal distortion is corrected according to the present invention, and Fig. 3 shows an embodiment of the present invention. Electrical circuit diagram FIG. 4 is a block diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Vertical output circuit, 2... Vertical center correction section, 3... Horizontal output circuit, 4... Left and right pincushion distortion correction section, 5... Display screen, 6... Phase adjustment circuit, 7...
Parabolic voltage output circuit.
Claims (1)
直出力回路１側へ出力する垂直センタ補正部２と
、 左右糸巻歪を補正するパラボラ状電圧Ｓ２を水
平出力回路３側へ出力する左右糸巻歪補正部４と
を備えたラスター歪補正回路において、 前記した左右糸巻歪補正部４から出力されるパ
ラボラ状電圧Ｓ２の位相を、垂直センタ補正部２
から出力される信号の変更操作と連動させて、略
一定に維持可能としたことを特徴とするラスター
歪補正回路。 左右糸巻歪補正部４は、 垂直のこぎり波電圧Ｓ１を積分する位相調整回
路６と、 該位相調整回路６から出力される電圧からパラ
ボラ状電圧Ｓ２を形成するパラボラ電圧出力回路
７とを備え、 垂直センタ補正部２における信号の変更操作を
連動して、位相調整回路６の積分時定数を変更可
能とする請求項１記載のラスター歪補正回路。[Claims for Utility Model Registration] A vertical center correction unit 2 that outputs a signal for correcting the vertical movement of the raster to the vertical output circuit 1 side, and a parabolic voltage S2 that corrects left and right pincushion distortion to the horizontal output circuit 3 side. In the raster distortion correction circuit, the phase of the parabolic voltage S2 output from the left and right pincushion distortion correction section 4 is outputted to the vertical center correction section 2.
A raster distortion correction circuit characterized in that the signal output from the raster distortion correction circuit can be maintained substantially constant in conjunction with a change operation of a signal output from the circuit. The left and right pincushion distortion correction unit 4 includes a phase adjustment circuit 6 that integrates the vertical sawtooth voltage S1 , and a parabolic voltage output circuit 7 that forms a parabolic voltage S2 from the voltage output from the phase adjustment circuit 6. 2. The raster distortion correction circuit according to claim 1, wherein the integration time constant of the phase adjustment circuit 6 can be changed in conjunction with signal change operations in the vertical center correction section 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12339589U JPH0361754U (en) | 1989-10-20 | 1989-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12339589U JPH0361754U (en) | 1989-10-20 | 1989-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361754U true JPH0361754U (en) | 1991-06-17 |
Family
ID=31671375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12339589U Pending JPH0361754U (en) | 1989-10-20 | 1989-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361754U (en) |
-
1989
- 1989-10-20 JP JP12339589U patent/JPH0361754U/ja active Pending
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