JPH036375U - - Google Patents
Info
- Publication number
- JPH036375U JPH036375U JP6551189U JP6551189U JPH036375U JP H036375 U JPH036375 U JP H036375U JP 6551189 U JP6551189 U JP 6551189U JP 6551189 U JP6551189 U JP 6551189U JP H036375 U JPH036375 U JP H036375U
- Authority
- JP
- Japan
- Prior art keywords
- level
- dynamic range
- control voltage
- controller
- agc
- 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
- 238000003384 imaging method Methods 0.000 claims 2
- 230000035945 sensitivity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Description
第１図はこの考案の一実施例を示す構成図、第
２図〜第４図はその説明のための図、第５図は従
来例の構成図、第６図〜第８図はその説明のため
の図である。
２……アイリス、３……撮像素子、５，１０…
…レベル検出器、６，１１……プリコントローラ
、７……アイリスドライバ、９……ＡＧＣアンプ
、１３……プロセス回路、１６……エンコーダ、
２１……アンプ、２３……ダイオード、２４……
抵抗器、２５……接続スイツチ、２６……低照度
ゲインコントローラ。
Fig. 1 is a block diagram showing an embodiment of this invention, Figs. 2 to 4 are diagrams for explaining it, Fig. 5 is a block diagram of a conventional example, and Figs. 6 to 8 are explanations thereof. This is a diagram for 2...Iris, 3...Image sensor, 5, 10...
... Level detector, 6, 11 ... Pre-controller, 7 ... Iris driver, 9 ... AGC amplifier, 13 ... Process circuit, 16 ... Encoder,
21...Amplifier, 23...Diode, 24...
Resistor, 25...Connection switch, 26...Low illuminance gain controller.
Claims (1)
共に、このＡＧＣアンプにはその出力レベルに応
じたＡＧＣ制御電圧がゲイン制御信号として供給
されるビデオカメラにおいて、 上記ＡＧＣ制御電圧のレベルを制御するレベル
制御器と、上記ＡＧＣ制御電圧のダイナミツクレ
ンジを制御するダイナミツクレンジ制御器とを設
け、 感度アツプ時には、上記レベル制御器によつて
上記ＡＧＣ制御電圧が撮像信号のレベルに応じて
制御されると共に、上記ダイナミツクレンジ制御
器によつて上記ＡＧＣ制御電圧のダイナミツクレ
ンジが拡大されることを特徴とするビデオカメラ
。[Claims for Utility Model Registration] In a video camera in which an imaging signal is output through an AGC amplifier, and an AGC control voltage corresponding to the output level of the AGC amplifier is supplied as a gain control signal, A level controller for controlling the level and a dynamic range controller for controlling the dynamic range of the AGC control voltage are provided, and when the sensitivity increases, the AGC control voltage is adjusted to the level of the imaging signal by the level controller. A video camera characterized in that the dynamic range of the AGC control voltage is expanded by the dynamic range controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065511U JP2507164Y2 (en) | 1989-06-05 | 1989-06-05 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989065511U JP2507164Y2 (en) | 1989-06-05 | 1989-06-05 | Video camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH036375U true JPH036375U (en) | 1991-01-22 |
| JP2507164Y2 JP2507164Y2 (en) | 1996-08-14 |
Family
ID=31597402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989065511U Expired - Fee Related JP2507164Y2 (en) | 1989-06-05 | 1989-06-05 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2507164Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53151396U (en) * | 1977-05-06 | 1978-11-29 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63215173A (en) * | 1987-03-04 | 1988-09-07 | Hitachi Ltd | Signal processing device for video camera |
-
1989
- 1989-06-05 JP JP1989065511U patent/JP2507164Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63215173A (en) * | 1987-03-04 | 1988-09-07 | Hitachi Ltd | Signal processing device for video camera |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53151396U (en) * | 1977-05-06 | 1978-11-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2507164Y2 (en) | 1996-08-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |