JPS6061885U - Color decoder for NTSC signals - Google Patents

Color decoder for NTSC signals

Info

Publication number
JPS6061885U
JPS6061885U JP15341483U JP15341483U JPS6061885U JP S6061885 U JPS6061885 U JP S6061885U JP 15341483 U JP15341483 U JP 15341483U JP 15341483 U JP15341483 U JP 15341483U JP S6061885 U JPS6061885 U JP S6061885U
Authority
JP
Japan
Prior art keywords
signal component
color
mhz
filter
color decoder
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
Application number
JP15341483U
Other languages
Japanese (ja)
Inventor
英道 沢野
Original Assignee
大日本印刷株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 大日本印刷株式会社 filed Critical 大日本印刷株式会社
Priority to JP15341483U priority Critical patent/JPS6061885U/en
Publication of JPS6061885U publication Critical patent/JPS6061885U/en
Pending legal-status Critical Current

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  • Processing Of Color Television Signals (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案によるＮＴＳＣ信号用カラーデコーダの
一実施例を示すブロック図、第２図、第３図、及び第４
図はそれぞれ第１図の実施例の動作説明の特性曲線図で
ある。 １・・・・・・くし形フィルタ、２・・・・・・トラッ
プフイル−タ、３・・・・・・アパーチャ補正回路、４
・・・・・田−パスフィルタ、５・・・・・・マトリク
ス回路、６・・・・・・バンドパスフィルタ、７・・・
・・・色信号復調回路。FIG. 1 is a block diagram showing an embodiment of a color decoder for NTSC signals according to the present invention, FIGS. 2, 3, and 4.
Each figure is a characteristic curve diagram illustrating the operation of the embodiment of FIG. 1. 1... Comb filter, 2... Trap filter, 3... Aperture correction circuit, 4
・・・・・・Ta-pass filter, 5... Matrix circuit, 6... Band pass filter, 7...
...Color signal demodulation circuit.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）ＮＴＳＣ方式の複合カラー信号をくし形フィルタ
で輝度信号成分とクロマ信号成分とに分離し、ＲＧＢ３
色の色信号を得るようにしたカラーデコーダにおいて、
上記輝度信号成分のチャンネルにトラップフィルタと、
アパーチャ補正回路と、そしてローパスフィルタとを設
け、上記トラップフィルタによるトラップ周波数を３．
５８ＭＨｚに、上記アパーチャ補正回路による補正周波
数を１．５ＭＨｚに、そして上記ローパスフィルタのカ
ットオフ周波数を５ＭＨｚにそれぞれ定めたことを特徴
とするＮＴＳＣ信号用カラーデコーダ。(1) The NTSC system composite color signal is separated into a luminance signal component and a chroma signal component using a comb filter, and RGB3
In a color decoder that obtains color signals,
A trap filter is installed in the channel of the luminance signal component above,
An aperture correction circuit and a low-pass filter are provided, and the trap frequency by the trap filter is adjusted to 3.
58 MHz; a correction frequency by the aperture correction circuit is set to 1.5 MHz; and a cutoff frequency of the low-pass filter is set to 5 MHz. （２）実用新案登録請求の範囲第１項において、上記ク
ロマ信号成分の帯域幅を調整可能に構成したことを特徴
とするＮＴＳＣ信号用カラーデコーダ。(2) Utility Model Registration The color decoder for NTSC signals according to claim 1, characterized in that the bandwidth of the chroma signal component is adjustable.
JP15341483U 1983-10-04 1983-10-04 Color decoder for NTSC signals Pending JPS6061885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15341483U JPS6061885U (en) 1983-10-04 1983-10-04 Color decoder for NTSC signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15341483U JPS6061885U (en) 1983-10-04 1983-10-04 Color decoder for NTSC signals

Publications (1)

Publication Number Publication Date
JPS6061885U true JPS6061885U (en) 1985-04-30

Family

ID=30339432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15341483U Pending JPS6061885U (en) 1983-10-04 1983-10-04 Color decoder for NTSC signals

Country Status (1)

Country Link
JP (1) JPS6061885U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728463U (en) * 1980-07-25 1982-02-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728463U (en) * 1980-07-25 1982-02-15

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