KR950007157Y1 - Color osd signal circuit - Google Patents
Color osd signal circuit Download PDFInfo
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- KR950007157Y1 KR950007157Y1 KR2019890020323U KR890020323U KR950007157Y1 KR 950007157 Y1 KR950007157 Y1 KR 950007157Y1 KR 2019890020323 U KR2019890020323 U KR 2019890020323U KR 890020323 U KR890020323 U KR 890020323U KR 950007157 Y1 KR950007157 Y1 KR 950007157Y1
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- signal
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
내용 없음No content
Description
제1도는 본 고안의 칼라 OSD 신호 발생회로도.1 is a color OSD signal generation circuit diagram of the present invention.
제2도는 제1도의 각부의 파형도.2 is a waveform diagram of each part of FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 동기신호 카운터 2 : 칼라위상 제어부1: Sync signal counter 2: Color phase control unit
3 : 칼라 캐리어신호 발생기 4 : 칼라신호 발생기3: color carrier signal generator 4: color signal generator
5 : 문자신호 발생기 6 : 칼라신호 출력제어부5: character signal generator 6: color signal output control unit
7 : 제1혼합기 8 : 제2혼합기7: 1st mixer 8: 2nd mixer
YS : 영상신호YS: Video signal
본 고안은 방송기기, 비디오 테이프 레코더 및 텔레비젼 수상기등과 같은 각종 영상기기에 있어서, 칼라 OSD(On Screen Display)신호를 발생시켜 영상 신호에 혼합출력하는 칼라 OSD 신호발생회로에 관한 것이다.The present invention relates to a color OSD signal generation circuit that generates a color OSD (On Screen Display) signal and outputs a mixed image to a video signal in various video devices such as a broadcast device, a video tape recorder, a television receiver, and the like.
종래에는 칼라 OSD 신호를 발생시키는 회로가 없었고, 단지 흑백의 OSD 신호만을 발생시켜 영상신호에 혼합출력시켰으므로 그 사용이 매우 단조로운 문제점이 있었다.In the prior art, there was no circuit for generating a color OSD signal, and only a black and white OSD signal was generated to be mixed and output to an image signal.
본 고안은 상기와 같은 종래의 문제점을 해결하기 위하여, 칼라 OSD 신호를 발생시키고 영상신호에 혼합출력하는 칼라 OSD 신호발생회로를 안출한 것으로 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention is a color OSD signal generating circuit for generating a color OSD signal and mixed output to the image signal in order to solve the conventional problems as described above in detail with reference to the accompanying drawings as follows.
제1도는 본 고안의 칼라 OSD 신호발생호로로서 이에 도시된 바와같이, 영상신호(YS)에 혼합되어 있는 동기신호를 카운트하는 동기신호 카운터(1)와, 상기 동기신호 카운터(1)의 출력신호에 따라 칼라신호 발생의 위상을 제어하는 칼라위상 제어부(2)와, 칼라 캐리어신호를 발생하는 칼라 캐리어신호발생기(3)와, 상기 칼라위상 제어부(2)의 제어에 따라 상기 칼라 캐리어신호발생기(3)의 출력신호로 발생출력하는 칼라신호발생기(3＼4)와, 상기 영상신호(YS)에 따라 OSD 신호를 발생하는 문자신호발생기(5)와, 상기 문자신호발생기(5)가, OSD 신호를 출력할 경우에만 상기 칼라신호발생기(4)의 칼라신호가 출력되게 하는 인버터(I) 및 트랜지스터(TR)로 된 칼라신호 출력제어부(6)와, 상기 문자신호발생기(5)의 OSD 신호 및 상기 칼라신호 출력제어부(6)를 통과한 칼라신호를 혼합하는 제1혼합기(7)와, 상기 영상신호(YS) 및 제1혼합기(7)의 출력신호를 혼합하여 칼라 OSD 신호가 혼합된 영상신호를 출력하는 제2혼합기(8)로 구성하였다.1 is a color OSD signal generation signal of the present invention, as shown therein, a sync signal counter 1 for counting sync signals mixed in a video signal YS, and an output signal of the sync signal counter 1; According to the control of the color phase control unit 2 for controlling the phase of color signal generation, the color carrier signal generator 3 for generating a color carrier signal, and the color phase control unit 2 3) the color signal generator (3 하는 4) that generates and outputs the output signal of 3), the character signal generator (5) which generates the OSD signal in accordance with the video signal (YS), and the character signal generator (5). The color signal output control unit 6 comprising the inverter I and the transistor TR, which outputs the color signal of the color signal generator 4 only when the signal is output, and the OSD signal of the text signal generator 5. And a color shin passing through the color signal output control unit 6. And a second mixer (8) for mixing the first mixer (7) for mixing and the output signal of the video signal (YS) and the first mixer (7) to output an image signal mixed with the color OSD signal. .
이와같이 구성된 본 고안은 영상신호(YS)가 입력되면, 입력된 영상신호(YS)는 문자신호 발생기(5)로 입력됨과 아울러 동기신호 카운터(1)로 입력되므로 동기신호 카운터(1)는 영상신호(YS)에 혼합되어 있는 동기신호를 검출카운트하고, 카운트한 동기신호의 수에 따라 칼라위상제어부(2)가 칼라신호발생기(4)를 제어하여 칼라신호의 발생위상을 제어하게 된다. 이러한 과정에 의하여 OSD 문자가 쓰여질 화면상의 수평 및 수직위치가 결정된다.According to the present invention configured as described above, when the image signal YS is input, the input image signal YS is input to the character signal generator 5 and to the synchronization signal counter 1, so that the synchronization signal counter 1 is an image signal. The color phase control section 2 controls the color signal generator 4 to control the generation phase of the color signal by detecting and counting the synchronous signals mixed in the (YS). By this process, the horizontal and vertical positions of the screen on which the OSD characters are written are determined.
다음 칼라신호발생기(4)는 칼라위상 제어부(2)에 의해 제어되면서 칼라 캐리어신호발생기(3)가 출력하는 칼라 캐리어신호로 칼라신호를 발생하여 제2도의 (a)에 도시된 바와 같이 출력하게 된다. 이 과정에 의해서는 OSD 문자색의 종류가 결정된다.Next, the color signal generator 4 is controlled by the color phase control unit 2 to generate a color signal as a color carrier signal output from the color carrier signal generator 3 to output the color signal as shown in FIG. do. This process determines the type of OSD text color.
이와 같은 상태에서 문자신호발생기(5)가 영상신호(YS)에 따라 제2도의 (b)에 도시된 바와 같이 소정의 문자신호 즉, OSD 신호를 출력하면 출력한 문자신호는 제1혼합기(7)로 입력됨과 아울러 칼라신호 출력제어부(6)의 인버터(I)를 통해 제2도의 (c)에 도시된 바와 같이 반전되어 트랜지스터(TR)의 베이스에 인가된다.In this state, when the text signal generator 5 outputs a predetermined text signal, that is, an OSD signal, as shown in FIG. 2B according to the image signal YS, the output text signal is the first mixer 7. ) And is inverted and applied to the base of the transistor TR as shown in (c) of FIG. 2 through the inverter I of the color signal output control unit 6.
그러므로 칼라신호 출력제어부(6)는 문자발생기(5)가 저전위를 출력할 경우에 트랜지스터(TR)가 온되어 칼라신호발생기(4)가 출력하는 칼라신호를 접지시키고, 문자발생기(5)가 고전위를 출력 즉, 문자신호를 출력할 경우에는 트랜지스터(TR)가 오프되어 칼라신호 발생기(4)가 출력하는 칼라신호를 통과 및 제1혼합기(7)로 입력되게 한다. 이 과정에 의하면 원하는 문자의 구성화소에만 색이 입혀지게 되어 문자의 분별이 가능해진다.Therefore, when the character generator 5 outputs a low potential, the color signal output controller 6 turns on the transistor TR to ground the color signal output from the color signal generator 4, and the character generator 5 When outputting a high potential, that is, a character signal, the transistor TR is turned off so that the color signal generated by the color signal generator 4 is passed through and inputted to the first mixer 7. According to this process, only the constituent pixels of the desired characters are colored, so that the characters can be distinguished.
따라서, 제1혼합기(7)는 제2도의 (d)에 도시된 바와 같이, 칼라 OSD 신호를 출력하게 되고, 그 출력한 칼라 OSD 신호는 제2혼합기(8)에 영상신호(YS)와 함께 입력혼합되므로 제2혼합기(8)는 칼라 OSD 신호가 혼합된 영상신호를 출력하게 된다.Accordingly, the first mixer 7 outputs a color OSD signal as shown in (d) of FIG. 2, and the output color OSD signal is combined with the image signal YS to the second mixer 8. Since the input is mixed, the second mixer 8 outputs an image signal mixed with the color OSD signal.
이상에서 상세히 설명한 바와같이 본 고안은 칼라 OSD 신호를 발생시켜 영상신호에 혼합출력하므로 화면에 칼라 OSD 문자가 표시되어 사용자가 보다 쾌적하게 영상신호의 표시화면을 시청할 수 있는 등의 효과가 있다.As described in detail above, the present invention generates a color OSD signal and outputs the mixed signal to the video signal, so that color OSD characters are displayed on the screen so that the user can more comfortably view the display screen of the video signal.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890020323U KR950007157Y1 (en) | 1989-12-29 | 1989-12-29 | Color osd signal circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890020323U KR950007157Y1 (en) | 1989-12-29 | 1989-12-29 | Color osd signal circuit |
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| Publication Number | Publication Date |
|---|---|
| KR910013458U KR910013458U (en) | 1991-07-30 |
| KR950007157Y1 true KR950007157Y1 (en) | 1995-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR2019890020323U KR950007157Y1 (en) | 1989-12-29 | 1989-12-29 | Color osd signal circuit |
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