JPH0191380U - - Google Patents
Info
- Publication number
- JPH0191380U JPH0191380U JP18719087U JP18719087U JPH0191380U JP H0191380 U JPH0191380 U JP H0191380U JP 18719087 U JP18719087 U JP 18719087U JP 18719087 U JP18719087 U JP 18719087U JP H0191380 U JPH0191380 U JP H0191380U
- Authority
- JP
- Japan
- Prior art keywords
- buffer circuit
- data
- noise
- noise detection
- outputted
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Picture Signal Circuits (AREA)
Description
第１図は本考案の一実施例によるＡ／Ｄ変換回
路の構成を示すブロツク図、第２図は液晶テレビ
受像機の一般的な回路構成を示すブロツク図、第
３図は従来のＡ／Ｄ変換回路の構成を示すブロツ
ク図である。
１２…ＴＶリニア回路、１３…Ａ／Ｄ変換回路
、２１…コンパレータ／エンコーダ、３１，３２
…コンパレータ、３４…バツフア回路、３５ａ〜
３５ｃ…レジスタ、３７，３８…ゲート回路、３
９…データライン。
FIG. 1 is a block diagram showing the configuration of an A/D conversion circuit according to an embodiment of the present invention, FIG. 2 is a block diagram showing the general circuit configuration of a liquid crystal television receiver, and FIG. FIG. 2 is a block diagram showing the configuration of a D conversion circuit. 12...TV linear circuit, 13...A/D conversion circuit, 21...comparator/encoder, 31, 32
...Comparator, 34...Buffer circuit, 35a~
35c...Register, 37, 38...Gate circuit, 3
9...Data line.
Claims (1)
変換する変換手段と、この手段により変換された
デジタルデータを一定時間遅延して出力するバツ
フア回路と、上記ビデオ入力信号を予め設定した
範囲の基準電圧と比較してこの基準電圧範囲を越
えるノイズを検出するノイズ検出手段と、この手
段よりノイズ検出信号が出力されない状態では上
記バツフア回路の終段出力データを選択し、ノイ
ズ検出信号が出力された状態では上記バツフア回
路よりノイズ発生後のデータを選択して出力する
データ選択手段とを具備したことを特徴とするＡ
／Ｄ変換回路。 A conversion means for converting a video input signal into n-bit digital data, a buffer circuit for outputting the digital data converted by this means with a fixed time delay, and a comparison of the video input signal with a reference voltage in a preset range. and a noise detection means for detecting noise exceeding this reference voltage range, and when the noise detection signal is not outputted from this means, the final stage output data of the buffer circuit is selected, and when the noise detection signal is outputted, the above-mentioned output data is selected. A characterized in that it is equipped with data selection means for selecting and outputting data after noise generation from a buffer circuit.
/D conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18719087U JPH0191380U (en) | 1987-12-10 | 1987-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18719087U JPH0191380U (en) | 1987-12-10 | 1987-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191380U true JPH0191380U (en) | 1989-06-15 |
Family
ID=31478361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18719087U Pending JPH0191380U (en) | 1987-12-10 | 1987-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191380U (en) |
-
1987
- 1987-12-10 JP JP18719087U patent/JPH0191380U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2134277A1 (en) | Video format conversions systems -- | |
| JPH10208030A5 (en) | ||
| JPH0191380U (en) | ||
| JPS648887U (en) | ||
| JPH0193887U (en) | ||
| JPH067630Y2 (en) | Video clamp circuit | |
| JP2600036Y2 (en) | Optical video disc player | |
| JP2568055Y2 (en) | Television signal clamping device | |
| JPS63530U (en) | ||
| JPS6454440U (en) | ||
| JPH0481085U (en) | ||
| JPH049989U (en) | ||
| JPS59104631U (en) | Analog to digital converter | |
| JPS6187491A (en) | Color signal processing circuit | |
| JPS61191658U (en) | ||
| JPH0472549U (en) | ||
| KR890003217A (en) | Image input device | |
| JPS61191632U (en) | ||
| JPH04170277A (en) | Digital processing unit for audio signal | |
| JPS63138734U (en) | ||
| JPS58152059U (en) | Switching signal generation circuit | |
| JPS593674U (en) | Transmission equipment for video and audio signals in television signals | |
| JPS59192800U (en) | Meandering driving detection device that detects the center line on the road | |
| JPS62114576U (en) | ||
| JPH03111073U (en) |