JPS6046687A - color video camera - Google Patents

color video camera

Info

Publication number
JPS6046687A
JPS6046687A JP58155196A JP15519683A JPS6046687A JP S6046687 A JPS6046687 A JP S6046687A JP 58155196 A JP58155196 A JP 58155196A JP 15519683 A JP15519683 A JP 15519683A JP S6046687 A JPS6046687 A JP S6046687A
Authority
JP
Japan
Prior art keywords
color
color difference
circuit
character
signal
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
JP58155196A
Other languages
Japanese (ja)
Inventor
Kazuo Tanaka
一雄 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58155196A priority Critical patent/JPS6046687A/en
Publication of JPS6046687A publication Critical patent/JPS6046687A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/74—Circuits for processing colour signals for obtaining special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To obtain circuit constitution which facilitates the display of a color title as to an SECAM color video camera. CONSTITUTION:Color difference signals (Y-R and B-Y) applied to input terminals 1 and 2 are supplied to character gates 4 and 5 respectively. Character pulses 3, on the other hand, are supplied to those gates 4 and 5, whose output waveforms are as shown in a figure. Color difference pulse circuits 8 and 9 convert the character pulses into color difference pulses having an amplitude of desired color on the basis of a color selection input. In this state, mixing circuits 10 and 11 mixes the outputs of the gates 4 and 5 with the outputs of the color difference pulse circuits 8 and 9, a color difference sequencing circuit 12 puts both outputs together, and an FM modulator 13 imposes FM modulation and supplies the resulting signal to a mixing circuit 15. Consequently, an SECAM color signal which allows color title display appears at the output of the circuit 15.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はセカム方式のカラービデオカメラに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a SECAM color video camera.

従来の構成とその問題点 従来、Ｎ’ＴＳＣ方式のカラービデオカメラではカラー
タイトル表示が採用されているが、ＮＴＳＣ方式のよう
な振巾変調方式とは異なる七カム方式の場合、ＦＭ変調
方式となっており、ＮＴＳＣ方式の方法でもってカラー
タイトル表示をおこなうわけには行かない。Conventional configuration and its problems Traditionally, color title display has been adopted in N'TSC color video cameras, but in the case of the seven-cam system, which is different from the amplitude modulation method like the NTSC method, FM modulation method and Therefore, it is not possible to display color titles using the NTSC method.

発明の目的 本発明はカラータイトル表示をおこなえるようにしたセ
カム方式のカラービデオカメラを提供するものである。OBJECTS OF THE INVENTION The present invention provides a SECAM type color video camera capable of displaying color titles.

発明の構成 上記目的を達成するために、本発明は色差信号ヲキャラ
クタパルスでゲートしてから、同パルスとカラー選択入
力とから作ったカラー信号とをミックスしてＹ−Ｒ，Ｂ
−Ｙ各にの希望の色差信号を得、かつこれをもとに色差
順次信号を作って、ＦＭ変調するようにしたものである
。Structure of the Invention In order to achieve the above object, the present invention gates a color difference signal with a character pulse, and then mixes the color difference signal with a color signal made from a color selection input to generate Y-R, B.
A desired color difference signal for each of -Y is obtained, and based on this, a color difference sequential signal is created and FM modulated.

実施例の説明 以下図面の一実施例により説明する。１，２はＹ−Ｒ，
Ｂ−Ｙの色差信号が加わる端子、３はキャラクタパルス
が加わる端子、４，６はキャラクタゲー）、６．７はデ
ィジタル信号、ボリウムあるいは階段電圧等を利用して
選択されたカラー選択入力が加わる端子、８，９はキャ
ラクタパルスとカラー選択入力とを入力とし、Ｙ−Ｒ，
Ｂ−Ｙのタイトルカラー信号（色差パルス）を作る回路
、１０．１１はゲート４，５の出力と色差パルス回路８
，９の出力とをミキシングするタイトルカラー信号ミキ
シング回路、１２は色差順次回路、１３はＦＭ変調回路
、１４は輝度信号へのキャラクタミキシング回路、１６
はクロマ・輝度ミキシング回路である。DESCRIPTION OF EMBODIMENTS The following will explain one embodiment of the present invention with reference to the drawings. 1 and 2 are Y-R,
Terminal 3 is where the B-Y color difference signal is applied, 3 is the terminal where the character pulse is applied, 4 and 6 are the character game), 6.7 is the digital signal, and color selection input selected using a volume or step voltage is applied. Terminals 8 and 9 are input with character pulse and color selection input, Y-R,
A circuit that generates the B-Y title color signal (color difference pulse), 10.11 is the output of gates 4 and 5 and the color difference pulse circuit 8
, 9; 12 is a color difference sequential circuit; 13 is an FM modulation circuit; 14 is a character mixing circuit for luminance signals;
is a chroma/luminance mixing circuit.

以下、上記構成の動作を説明する。まず、入力端子１，
２に加わる色差信号（Ｙ−Ｒ’、Ｂ−Ｙ）とキャラクタ
パルスをゲート４，６に加えて、図に示すような信号に
する。一方、色差パルス回路８．９により、キャラクタ
パルスをカラー選択入力にもとすいて、希望の色の振１
］全もった色差パルスに変換する。The operation of the above configuration will be explained below. First, input terminal 1,
The color difference signals (Y-R', B-Y) added to 2 and the character pulses are added to gates 4 and 6 to produce a signal as shown in the figure. On the other hand, the color difference pulse circuit 8.9 uses the character pulse as a color selection input to create the desired color distribution.
] Convert to full color difference pulse.

この状態でミキシング回路１０，１１により、ゲート４
，５の出力と色差パルス回路８，９の出力とをミキシン
グし、これを色差順次回路１２に加えるとその出力は図
のようになる。以後色差順次回路１２の出力はＦＭ変調
器１３でＦＭ変調さし、ミキシング回路１６で輝度信号
とミキシングされ、セカム・カラー信号となる。In this state, the mixing circuits 10 and 11 control the gate 4.
, 5 and the outputs of the color difference pulse circuits 8 and 9 are mixed and added to the color difference sequential circuit 12, the output becomes as shown in the figure. Thereafter, the output of the color difference sequential circuit 12 is subjected to FM modulation by an FM modulator 13, and mixed with a luminance signal by a mixing circuit 16 to become a second color signal.

発明の効果 以上実施例により説明したが、本発明によればカラータ
イトル表示がおこなえる一方、色差信号をキャラ４夕の
部分だけ変えてやる方法をとっているためにその構成も
容易である。なおＹ−Ｂ。Effects of the Invention The embodiments have been described above. According to the present invention, a color title display can be performed, and since the color difference signal is changed only in the character 4 evening portion, the structure is easy. Furthermore, Y-B.

Ｂ−Ｙが色順次になっている信号に色順次化したカラー
タイトル用の色差信号をミックスしてもよい０It is possible to mix a color-sequential color difference signal for a color title with a color-sequential B-Y signal.0

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

図面は本発明の一実施例におけるカラービデオカメラの
要部ブロック図である。 ４．５・・・・・キャラクタゲー１−１８．９・・・・
・・色差パルス回路、１ｏ、１１・・・・・・ミキシン
グ回路、１２・・・・・・色差順次回路、１３・・・・
・・ＦＭ変調器。The drawing is a block diagram of essential parts of a color video camera according to an embodiment of the present invention. 4.5...Character game 1-18.9...
...Color difference pulse circuit, 1o, 11...Mixing circuit, 12...Color difference sequential circuit, 13...
...FM modulator.

Claims (1)

【特許請求の範囲】 ０）　カラータイトル表示色に対応する信号でキャラク
タパルスを変調し、これをＹ−Ｒ，Ｂ−Ｙの色差信号に
ミキシングする手段を設けたカラービデオカメラ。 （２）ミキシング手段はキャラクタパルスを希望のカラ
ータイトル表示色の色差パルスに変換する回路、キャラ
クタパルスでゲートされたＹ−Ｒ，Ｂ−Ｙの色差信号と
上記回路の出力とをミキシングする回路からなる特許請
求の範囲第１項記載のカラービデオカメラ。 （３）ミキシング手段はＹ−Ｒ，Ｂ−Ｙが色順次になっ
ている信号にキャラクタパルスで変調し、かつ色順次化
したカラータイトル用色信号をミックスすることを特徴
とする特許請求の範囲第１項記載のカラービデオカメラ
０[Scope of Claims] 0) A color video camera provided with means for modulating a character pulse with a signal corresponding to a color title display color and mixing it into Y-R and B-Y color difference signals. (2) The mixing means includes a circuit that converts the character pulse into a color difference pulse of the desired color title display color, and a circuit that mixes the Y-R and B-Y color difference signals gated by the character pulse with the output of the above circuit. A color video camera according to claim 1. (3) The scope of the claim characterized in that the mixing means modulates the Y-R, B-Y color-sequential signal with a character pulse, and mixes the color-sequential color title color signal. Color video camera 0 described in item 1
JP58155196A 1983-08-24 1983-08-24 color video camera Pending JPS6046687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58155196A JPS6046687A (en) 1983-08-24 1983-08-24 color video camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58155196A JPS6046687A (en) 1983-08-24 1983-08-24 color video camera

Publications (1)

Publication Number Publication Date
JPS6046687A true JPS6046687A (en) 1985-03-13

Family

ID=15600592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58155196A Pending JPS6046687A (en) 1983-08-24 1983-08-24 color video camera

Country Status (1)

Country Link
JP (1) JPS6046687A (en)

Similar Documents

Publication Publication Date Title
EP0071745B1 (en) Composite video color signal generation from digital color signals
US4873568A (en) Digital video effects apparatus
US4001498A (en) Video mixing and/or keying system
JPS6046687A (en) color video camera
US4612570A (en) Noise reduction circuit for reducing noise in a color signal of a color video signal
JP2589330B2 (en) Color image display control device
JPS6046688A (en) Color video camera
US3512094A (en) Electronic signal processing systems
JPS6046686A (en) color video camera
JPH0346633Y2 (en)
KR930009876B1 (en) Screen color editing circuit of color TV
JPH07508377A (en) video storage device
KR950034196A (en) Video signal mixing element
US5442392A (en) Negative film image conversion apparatus for video camera
JPH0227664Y2 (en)
JPH0413896Y2 (en)
SU1764186A1 (en) Device for television signal generating
JPH0747019Y2 (en) Magnetic recording device
JP2524521B2 (en) Magnetic recording / reproducing device
JPS62171293A (en) Color burst signal inserting circuit
JPS6019279U (en) color encoder
JPH03135290A (en) Color display device
JPS60102083A (en) Color solid-state image pickup device
JPH02141075A (en) Video signal processing circuit
JPS5951691A (en) color encoder