JPS638792U - - Google Patents
Info
- Publication number
- JPS638792U JPS638792U JP10164886U JP10164886U JPS638792U JP S638792 U JPS638792 U JP S638792U JP 10164886 U JP10164886 U JP 10164886U JP 10164886 U JP10164886 U JP 10164886U JP S638792 U JPS638792 U JP S638792U
- Authority
- JP
- Japan
- Prior art keywords
- level
- output
- rgb signal
- circuit
- discriminating
- 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 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
図面は本考案の一実施例の回路図である。
３……判別回路、６……分圧回路、Ｑ１……ス
イツチングトランジスタ（スイツチング手段）、
Ｒ１，Ｒ２……第１、第２分圧抵抗。
The drawing is a circuit diagram of an embodiment of the present invention. 3...Discrimination circuit, 6...Voltage dividing circuit, Q1...Switching transistor (switching means),
R1, R2...first and second voltage dividing resistors.
Claims (1)
号を所定のレベルに変換して出力するＲＧＢ信号
のレベル変換回路において、 前記ＲＧＢ信号のレベルが、ＴＴＬレベルであ
るときは第１判別出力を、またアナログレベルで
あるときは第２判別出力を出力する判別回路と、 前記判別回路の出力部にそのベースが、また前
記ＲＧＢ信号の入力部と出力部との間にそのコレ
クタ・エミツタがそれぞれ接続され、かつそのベ
ースに与えられる前記第１判別出力に応答してオ
フし、前記第２判別出力に応答してオンするスイ
ツチング手段と、 前記スイツチング手段のコレクタ・エミツタ間
に並列に接続された分圧抵抗を含む分圧回路とを
備えることを特徴とするＲＧＢ信号のレベル変換
回路。[Claims for Utility Model Registration] In an RGB signal level conversion circuit that converts an RGB signal at a TTL level or an analog level to a predetermined level and outputs the converted signal, a first determination is made when the level of the RGB signal is at the TTL level. a discriminating circuit that outputs an output and a second discriminating output when it is at an analog level, a base thereof at the output section of the discriminating circuit, and a collector/emitter thereof between the input section and the output section of the RGB signal. are connected in parallel between the collector and emitter of the switching means, which are connected in parallel to each other, and are turned off in response to the first discrimination output and turned on in response to the second discrimination output applied to the base thereof; 1. A level conversion circuit for RGB signals, comprising: a voltage dividing circuit including a voltage dividing resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10164886U JPS638792U (en) | 1986-07-01 | 1986-07-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10164886U JPS638792U (en) | 1986-07-01 | 1986-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS638792U true JPS638792U (en) | 1988-01-21 |
Family
ID=30972566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10164886U Pending JPS638792U (en) | 1986-07-01 | 1986-07-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS638792U (en) |
-
1986
- 1986-07-01 JP JP10164886U patent/JPS638792U/ja active Pending