JPS63117184U - - Google Patents
Info
- Publication number
- JPS63117184U JPS63117184U JP755187U JP755187U JPS63117184U JP S63117184 U JPS63117184 U JP S63117184U JP 755187 U JP755187 U JP 755187U JP 755187 U JP755187 U JP 755187U JP S63117184 U JPS63117184 U JP S63117184U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- average value
- pattern signal
- circuit
- background pattern
- 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
- 230000037431 insertion Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は、本考案の一実施例の構成図、第２図
、第３図、第４図は挿入点近傍における輝度信号
の平均値検出部の回路図である。
１０……平均値検出部、２０……背景パターン
信号発生部、３０……色設定信号部、４０……パ
ターン切替部。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIGS. 2, 3, and 4 are circuit diagrams of an average value detection section of a luminance signal in the vicinity of an insertion point. 10...Average value detection section, 20...Background pattern signal generation section, 30...Color setting signal section, 40...Pattern switching section.
Claims (1)
信号挿入回路において、 (a) 画面の挿入点近傍の輝度信号の平均値を
検出する手段と、 (b) あらかじめ定めた規準値と前記平均値と
の大小を比較し、比較結果に基づき、前記規準値
以上でしかも前記平均値より大きい値を信号値と
して発生する背景パターン信号発生手段と、 (c) 前記背景パターン信号と、挿入パターン
信号とをドツトで切替えて出力する切替手段と を含むことを特徴とするデイジタル信号挿入回路
。 (2) 前記第１項において、切替手段の切替スイ
ツチにいたる、背景パターン信号線の結線が背景
色の設定により任意になしうるものである実用新
案登録請求の範囲第１項記載のデイジタル信号挿
入回路。[Scope of Claim for Utility Model Registration] (1) In a digital signal insertion circuit of a digital television device, (a) means for detecting the average value of a luminance signal near the insertion point on the screen; and (b) a predetermined reference value. (c) background pattern signal generating means for comparing the magnitude of and the average value and generating a signal value that is equal to or higher than the reference value and larger than the average value based on the comparison result; (c) the background pattern signal; 1. A digital signal insertion circuit comprising a switching means for switching and outputting an insertion pattern signal in dots. (2) Digital signal insertion according to claim 1 of the utility model registration claim, wherein the connection of the background pattern signal line to the changeover switch of the switching means can be made arbitrarily by setting the background color. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP755187U JPS63117184U (en) | 1987-01-23 | 1987-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP755187U JPS63117184U (en) | 1987-01-23 | 1987-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63117184U true JPS63117184U (en) | 1988-07-28 |
Family
ID=30791110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP755187U Pending JPS63117184U (en) | 1987-01-23 | 1987-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117184U (en) |
-
1987
- 1987-01-23 JP JP755187U patent/JPS63117184U/ja active Pending
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