JPH0338988U - - Google Patents
Info
- Publication number
- JPH0338988U JPH0338988U JP9848189U JP9848189U JPH0338988U JP H0338988 U JPH0338988 U JP H0338988U JP 9848189 U JP9848189 U JP 9848189U JP 9848189 U JP9848189 U JP 9848189U JP H0338988 U JPH0338988 U JP H0338988U
- Authority
- JP
- Japan
- Prior art keywords
- high frequency
- frequency signal
- chrominance
- distributor
- subcarrier
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
第１図は本考案の一実施例における非直線性補
正回路の概要を示すブロツク図である。
１１……入力信号、１２……分配器、１３……
非直線性増幅器、１４……遅延回路、１５……同
期検波器、１６……色副搬送波通過フイルタ、１
７……変調器、１８……出力信号。
FIG. 1 is a block diagram showing an outline of a nonlinearity correction circuit in one embodiment of the present invention. 11...Input signal, 12...Distributor, 13...
Nonlinear amplifier, 14... Delay circuit, 15... Synchronous detector, 16... Color subcarrier passing filter, 1
7...Modulator, 18...Output signal.
Claims (1)
する分配器と、 この分配器によつて分配された一方の高周波信
号を入力し、この高周波信号をクロミナンスの補
正カーブに合わせて増幅する非直線性増幅器と、
直交成分を取り出す同期検波器と、色副搬送波通
過フイルタからなる直列回路と、 前記分配器によつて分配された他方の高周波信
号を入力し、前記同期検波器および色副搬送波通
過フイルタの遅れ時間を補正するための遅延回路
と、 この遅延回路を経た高周波信号を前記色副搬送
波通過フイルタを通過した色副搬送波で変調して
クロミナンスの振幅特性の補正を行う変調器 とを具備することを特徴とする非直線性補正回路
。[Claims for Utility Model Registration] A distributor that distributes a high frequency signal after amplitude modulating a video signal, and one high frequency signal distributed by this distributor is input, and this high frequency signal is applied to a chrominance correction curve. a nonlinear amplifier that amplifies according to the
A series circuit consisting of a synchronous detector that extracts orthogonal components and a chrominance subcarrier passing filter; the other high frequency signal distributed by the distributor is inputted, and the delay time of the synchronous detector and the chrominance subcarrier passing filter is inputted; and a modulator that modulates the high frequency signal that has passed through the delay circuit with the color subcarrier that has passed through the color subcarrier pass filter to correct the amplitude characteristics of the chrominance. Non-linearity correction circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9848189U JPH0810992Y2 (en) | 1989-08-25 | 1989-08-25 | Non-linearity correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9848189U JPH0810992Y2 (en) | 1989-08-25 | 1989-08-25 | Non-linearity correction circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0338988U true JPH0338988U (en) | 1991-04-15 |
| JPH0810992Y2 JPH0810992Y2 (en) | 1996-03-29 |
Family
ID=31647579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9848189U Expired - Lifetime JPH0810992Y2 (en) | 1989-08-25 | 1989-08-25 | Non-linearity correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810992Y2 (en) |
-
1989
- 1989-08-25 JP JP9848189U patent/JPH0810992Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810992Y2 (en) | 1996-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |