JPH02130180U - - Google Patents
Info
- Publication number
- JPH02130180U JPH02130180U JP3937289U JP3937289U JPH02130180U JP H02130180 U JPH02130180 U JP H02130180U JP 3937289 U JP3937289 U JP 3937289U JP 3937289 U JP3937289 U JP 3937289U JP H02130180 U JPH02130180 U JP H02130180U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- converter
- selection means
- selecting
- display period
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案の一実施例によるコントロール
信号入力回路の構成を示すブロツク図、第２図は
従来のコントロール信号入力回路の構成を示すブ
ロツク図である。
２０……ＬＳＩ、２１……時分割制御回路、２
２……ＡＤコンバータ、２３……カウンタ、２４
……デコーダ、２８ａ〜２８ｃ……ラツチ回路。
FIG. 1 is a block diagram showing the configuration of a control signal input circuit according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional control signal input circuit. 20...LSI, 21...Time division control circuit, 2
2...AD converter, 23...Counter, 24
...Decoder, 28a-28c...Latch circuit.
Claims (1)
タル映像信号に変換して処理するデジタルテレビ
において、画像表示期間中は上記アナログ映像信
号を選択し、画像の非表示期間中は画像調整用の
各種コントロール信号を順次時分割に選択して上
記ＡＤコンバータに入力する第１の選択手段と、
上記ＡＤコンバータにより変換された映像信号及
び各種コントロール信号を上記第１の選択手段に
同期して選択し、その選択信号に対応する処理回
路に出力する第２の選択手段とを具備してなるこ
とを特徴とするデジタルテレビのコントロール信
号入力回路。 In a digital television that converts an analog video signal into a digital video signal using an AD converter for processing, the analog video signal is selected during the image display period, and various control signals for image adjustment are sequentially activated during the image non-display period. a first selection means for selecting the division and inputting it to the AD converter;
and second selection means for selecting the video signal and various control signals converted by the AD converter in synchronization with the first selection means, and outputting the selection signal to a corresponding processing circuit. A digital television control signal input circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3937289U JPH02130180U (en) | 1989-04-03 | 1989-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3937289U JPH02130180U (en) | 1989-04-03 | 1989-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02130180U true JPH02130180U (en) | 1990-10-26 |
Family
ID=31548225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3937289U Pending JPH02130180U (en) | 1989-04-03 | 1989-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02130180U (en) |
-
1989
- 1989-04-03 JP JP3937289U patent/JPH02130180U/ja active Pending