JPS61139070U - - Google Patents
Info
- Publication number
- JPS61139070U JPS61139070U JP2135285U JP2135285U JPS61139070U JP S61139070 U JPS61139070 U JP S61139070U JP 2135285 U JP2135285 U JP 2135285U JP 2135285 U JP2135285 U JP 2135285U JP S61139070 U JPS61139070 U JP S61139070U
- Authority
- JP
- Japan
- Prior art keywords
- clamp pulse
- absence
- detecting
- video signal
- clamp
- 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
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
- Television Receiver Circuits (AREA)
Description
第１図は本考案の一実施例に係るクランプ回路
の回路構成図、第２図は従来のクランプ回路の回
路構成図である。
８，９，３１〜３５…トランジスタ、１０，３
６，３７…ダイオード、１６…ＣＲＴ、３８…コ
ンデンサ、４１…抵抗。
FIG. 1 is a circuit diagram of a clamp circuit according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional clamp circuit. 8, 9, 31-35...Transistor, 10, 3
6, 37...Diode, 16...CRT, 38...Capacitor, 41...Resistor.
Claims (1)
映像信号をクランプパルスの供給を受け一定電位
にクランプするクランプ回路において、クランプ
パルスの有無を検出する検出手段と、この検出結
果に基づき前記クランプパルス欠落時においても
前記映像信号を所定の電位にクランプする手段と
を有することを特徴とするクランプ回路。 In a clamp circuit that receives a clamp pulse and clamps a video signal supplied to the cathode end of a cathode ray tube (CRT) to a constant potential, there is provided a detection means for detecting the presence or absence of a clamp pulse, and a detection means for detecting the absence of the clamp pulse based on the detection result. and means for clamping the video signal to a predetermined potential at any time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135285U JPS61139070U (en) | 1985-02-19 | 1985-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2135285U JPS61139070U (en) | 1985-02-19 | 1985-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61139070U true JPS61139070U (en) | 1986-08-28 |
Family
ID=30512668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2135285U Pending JPS61139070U (en) | 1985-02-19 | 1985-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61139070U (en) |
-
1985
- 1985-02-19 JP JP2135285U patent/JPS61139070U/ja active Pending
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