JPH0485970U - - Google Patents
Info
- Publication number
- JPH0485970U JPH0485970U JP12632790U JP12632790U JPH0485970U JP H0485970 U JPH0485970 U JP H0485970U JP 12632790 U JP12632790 U JP 12632790U JP 12632790 U JP12632790 U JP 12632790U JP H0485970 U JPH0485970 U JP H0485970U
- Authority
- JP
- Japan
- Prior art keywords
- image signal
- signal
- transmitting
- circuit
- correcting
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は、本考案の一実施例の送信ユニツトお
よび受信ユニツトを示した内部構成ブロツク図、
第２図は画像信号伝送システムの一例を示すブロ
ツク図、第３図は送信ユニツトの各部波形タイミ
ングチヤート図、第４図は受信ユニツトの各部波
形タイミングチヤート図である。
１……コンピユータ本体、２……デイスプレイ
装置、３……送信ユニツト、５……受信ユニツト
、６……大形デイスプレイ、７……伝送用ケーブ
ル、８……分配器、９……同期抜取回路、１０…
…パルス発生回路、１１……合成回路、１２……
利得補正回路、１３……周波数特性補正回路、１
４……同期信号分離回路、１５……微分回路、１
６，２０……ピークホールド回路、１７……基準
電圧発生回路、１８，２１……差分検出回路、１
９……積分回路、ａ……画像信号、ｂ……水平同
期信号、ｃ……パルス信号、ｄ……同期信号を抜
き取つた画像信号、ｅ……パルス信号を同期信号
として合成した映像信号、ｆ……伝送後の画像信
号、ｇ……積分回路の出力信号、ｈ……微分回路
の出力信号、ｉ，ｊ……最大値電圧、ｋ……直流
利得補正後の画像信号、ｌ……高域特性補正後の
画像信号。
FIG. 1 is an internal configuration block diagram showing a transmitting unit and a receiving unit according to an embodiment of the present invention.
FIG. 2 is a block diagram showing an example of an image signal transmission system, FIG. 3 is a waveform timing chart of various parts of the transmitting unit, and FIG. 4 is a waveform timing chart of various parts of the receiving unit. 1... Computer body, 2... Display device, 3... Transmitting unit, 5... Receiving unit, 6... Large display, 7... Transmission cable, 8... Distributor, 9... Synchronization extraction circuit. , 10...
...Pulse generation circuit, 11...Synthesizing circuit, 12...
Gain correction circuit, 13... Frequency characteristic correction circuit, 1
4...Synchronizing signal separation circuit, 15...Differentiating circuit, 1
6, 20... Peak hold circuit, 17... Reference voltage generation circuit, 18, 21... Difference detection circuit, 1
9...Integrator circuit, a...Image signal, b...Horizontal synchronization signal, c...Pulse signal, d...Image signal from which the synchronization signal has been extracted, e...Video signal synthesized from the pulse signal as a synchronization signal , f... Image signal after transmission, g... Output signal of the integrating circuit, h... Output signal of the differentiating circuit, i, j... Maximum value voltage, k... Image signal after DC gain correction, l... ...Image signal after high-frequency characteristic correction.
Claims (1)
号を伝送するための伝送手段と、伝送された画像
信号を受信するための受信手段を設けた伝送損失
補正装置において、上記送信手段にて、一定のク
ロツク周波数により構成した一定パルス幅、かつ
一定振幅のパルス信号を同期信号として付加する
ための同期信号付加手段を設け、また、上記受信
手段にて、上記同期信号の立ち上り、または立ち
下りエツジレベルを検出し、この検出信号に応じ
て画像信号の広域特性を補正するための広域特性
補正手段と、上記同期信号のレベル平均値を検出
し、この検出信号に応じて画像信号の直流利得を
補正するための直流利得補正手段を設けたことを
特徴とする伝送損失補正装置。 In a transmission loss correction device including a transmitting means for transmitting an image signal, a transmitting means for transmitting the image signal, and a receiving means for receiving the transmitted image signal, the transmitting means A synchronizing signal adding means is provided for adding a pulse signal having a constant pulse width and a constant amplitude constituted by a clock frequency of wide-area characteristic correction means for detecting and correcting the wide-area characteristic of the image signal according to the detection signal; and detecting the average level value of the synchronization signal and correcting the DC gain of the image signal according to the detection signal. 1. A transmission loss correction device, characterized in that it is provided with a DC gain correction means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12632790U JPH0485970U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12632790U JPH0485970U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485970U true JPH0485970U (en) | 1992-07-27 |
Family
ID=31873887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12632790U Pending JPH0485970U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013215308A (en) * | 2012-04-05 | 2013-10-24 | Hoya Corp | Endoscope apparatus |
-
1990
- 1990-11-30 JP JP12632790U patent/JPH0485970U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013215308A (en) * | 2012-04-05 | 2013-10-24 | Hoya Corp | Endoscope apparatus |
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