JPS62181075U - - Google Patents
Info
- Publication number
- JPS62181075U JPS62181075U JP6922686U JP6922686U JPS62181075U JP S62181075 U JPS62181075 U JP S62181075U JP 6922686 U JP6922686 U JP 6922686U JP 6922686 U JP6922686 U JP 6922686U JP S62181075 U JPS62181075 U JP S62181075U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- circuit
- input
- video
- analog
- 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 3
Description
第１図は、この考案の映像信号入力装置の一実
施例を示す回路構成図、第２図は、第１図に示し
た回路各部の信号波形図、第３図は、従来の映像
信号入力装置を適用した受像機の一例を示す回路
構成図である。
４……アナログ処理回路、５……デイジタル処
理回路、６……切り替えスイツチ、７……映像入
力回路、１１……映像信号入力装置、１２……入
力判別回路。
Fig. 1 is a circuit configuration diagram showing an embodiment of the video signal input device of this invention, Fig. 2 is a signal waveform diagram of each part of the circuit shown in Fig. 1, and Fig. 3 is a conventional video signal input device. FIG. 2 is a circuit configuration diagram showing an example of a receiver to which the device is applied. 4...analog processing circuit, 5...digital processing circuit, 6...changeover switch, 7...video input circuit, 11...video signal input device, 12...input discrimination circuit.
Claims (1)
給される映像入力回路と、この映像入力回路の出
力を、その種別に応じてアナログ処理回路又はデ
イジタル処理回路のうちの対応する回路に選択的
に供給する切り替えスイツチと、前記映像入力回
路に供給される映像信号の尖頭値をあらかじめ設
定された基準値と比較し、この基準値との大小関
係に応じて入力映像信号がアナログ映像信号であ
るかデイジタル映像信号であるかを判別し、判別
結果に従つて前記切り替えスイツチを切り替え制
御する入力判別回路とからなる映像信号入力装置
。 A video input circuit to which an analog video signal or a digital video signal is supplied, and a changeover switch that selectively supplies the output of this video input circuit to a corresponding circuit of an analog processing circuit or a digital processing circuit depending on the type of the video input circuit. Then, the peak value of the video signal supplied to the video input circuit is compared with a preset reference value, and depending on the magnitude relationship with this reference value, it is determined whether the input video signal is an analog video signal or a digital video signal. 1. A video signal input device comprising an input discriminating circuit that discriminates whether the input switch is a switch, and controls switching of the changeover switch according to the discrimination result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6922686U JPS62181075U (en) | 1986-05-08 | 1986-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6922686U JPS62181075U (en) | 1986-05-08 | 1986-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62181075U true JPS62181075U (en) | 1987-11-17 |
Family
ID=30909762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6922686U Pending JPS62181075U (en) | 1986-05-08 | 1986-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62181075U (en) |
-
1986
- 1986-05-08 JP JP6922686U patent/JPS62181075U/ja active Pending