JPH01103988U - - Google Patents
Info
- Publication number
- JPH01103988U JPH01103988U JP19718687U JP19718687U JPH01103988U JP H01103988 U JPH01103988 U JP H01103988U JP 19718687 U JP19718687 U JP 19718687U JP 19718687 U JP19718687 U JP 19718687U JP H01103988 U JPH01103988 U JP H01103988U
- Authority
- JP
- Japan
- Prior art keywords
- monitor control
- television
- circuit
- monitor
- timer
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Closed-Circuit Television Systems (AREA)
Description
第１図は本考案によるテレビ通話装置のモニタ
制御回路の一実施例を示すブロツク図、第２図は
従来のテレビ通話装置のモニタ制御回路のブロツ
ク図、第３図は第１図に係わるタイムチヤートで
ある。
１……定電流回路（電源供給手段）、２……シ
フトレジスタ、４……単安定マルチバイブレータ
、５……タイマ、６……映像モニタスイツチ、Ａ
Ｙ，ＢＹ……継電器（電源切換回路）、ＴＤ……
エツヂデイレイ回路（モニタ制御を継続する回路
）。
FIG. 1 is a block diagram showing an embodiment of the monitor control circuit of a video call device according to the present invention, FIG. 2 is a block diagram of a monitor control circuit of a conventional video call device, and FIG. 3 is a time diagram related to FIG. It's a chat. 1... constant current circuit (power supply means), 2... shift register, 4... monostable multivibrator, 5... timer, 6... video monitor switch, A
Y, BY...Relay (power switching circuit), TD...
Edge delay circuit (circuit that continues monitor control).
Claims (1)
電源を切換える電源切換回路と、映像モニタスイ
ツチの操作でシフトし前記電源切換回路を制御す
るシフトレジスタとを備えテレビカメラをモニタ
制御するテレビカメラ通話装置のモニタ制御回路
において、前記モニタ制御する時間を定めるタイ
マと、モニタ制御中の前記テレビカメラが前記タ
イマのタイムオーバでモニタ制御を中断したとき
、つぎの前記映像モニタスイツチの操作で前記中
断したテレビカメラのモニタ制御を継続する回路
とを備えたテレビ通話装置のモニタ制御回路。 A television camera communication device that monitors and controls television cameras, comprising a plurality of television cameras, a power switching circuit for switching power to the television cameras, and a shift register that is shifted by operation of a video monitor switch to control the power switching circuit. The monitor control circuit includes a timer that determines the time for the monitor control, and when the television camera under monitor control interrupts the monitor control due to a timeout of the timer, the interrupted television camera A monitor control circuit for a television communication device, comprising a circuit for continuing monitor control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19718687U JPH0416542Y2 (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19718687U JPH0416542Y2 (en) | 1987-12-25 | 1987-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01103988U true JPH01103988U (en) | 1989-07-13 |
| JPH0416542Y2 JPH0416542Y2 (en) | 1992-04-14 |
Family
ID=31487753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19718687U Expired JPH0416542Y2 (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416542Y2 (en) |
-
1987
- 1987-12-25 JP JP19718687U patent/JPH0416542Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416542Y2 (en) | 1992-04-14 |