CN1117247A - 多制式电视机彩色控制系统 - Google Patents

多制式电视机彩色控制系统 Download PDF

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Publication number
CN1117247A
CN1117247A CN 95100641 CN95100641A CN1117247A CN 1117247 A CN1117247 A CN 1117247A CN 95100641 CN95100641 CN 95100641 CN 95100641 A CN95100641 A CN 95100641A CN 1117247 A CN1117247 A CN 1117247A
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CN
China
Prior art keywords
signal
color control
image signal
control system
color
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Pending
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CN 95100641
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English (en)
Inventor
田中惠美子
田中耕一
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
Publication of CN1117247A publication Critical patent/CN1117247A/zh
Pending legal-status Critical Current

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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
    • H04N9/642—Multi-standard receivers

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

Abstract

本发明的多制式电视机彩色控制系统包括图像信号处理电路和50Hz和60Hz检测电路，该检测电路用于检测图像的垂直扫描频率是50Hz还是60Hz，如果该垂直扫描频率为60Hz，则判定该图像信号为NTSC制信号，而且上述图像信号处理电路当图像信号被判定为NTSC制信号时才控制图像信号的颜色。本发明的彩色控制系统由于不包含常规的信号判定电路，因而简化了构成并降低了成本。

Description

多制式电视机彩色控制系统
本发明涉及一种用于多制式电视机的彩色控制系统。
图2示出了一种常规多制式电视机彩色控制系统的方框图。把图像信号12输入到图像信号处理电路8，该图像信号可能是PAL制的，也有可能是NTSC制或SECAM制的。信号判定电路9判定该图像信号是哪种制式。彩色控制电路10只有在该图像信号12被判定为NTSC制信号时才输出彩色控制信号11。图像信号处理电路8接收到该彩色控制信号11后控制图像信号12的颜色。
本发明的多制式电视机彩色控制系统包括：
接收并处理输入图像信号的图像信号处理电路；
当图像信号垂直扫描频率为60Hz时，判定该图像信号为NTSC制信号的50Hz/60Hz检测电路；
上述图像信号处理电路只有当图像信号被判定为NTSC制信号时才控制该图像信号的颜色。
本发明的彩色控制系统由于不包含常规的信号判定电路，所以简化了构成并降低了成本。
图1示出了本发明的多制式电视机彩色控制系统的方框图。
图2示出了常规的多制式电视机彩色控制系统的方框图。
图1示出了本发明的多制式电视机彩色控制系统的方框图。把图像信号7输入到图像信号处理电路1，该图像信号可能是PAL制的，也有可能是NTSC制的或SECAM制的。50Hz/60Hz检测电路2检测该图像信号7的垂直扫描频率是50Hz还是60Hz，并输出判定信号4。如果该垂直扫描频率为60Hz，则图像信号为NTSC制的。彩色控制装置3只有在该图像信号7的垂直扫描频率被判定为60Hz时才输出彩色控制信号6。本发明的彩色控制系统由于不包含常规的信号判定电路，因而简化了构成并降低了成本。

Claims (1)

1.  一种用于多制式电视机的彩色控制系统，其特征在于包括：
接收并处理输入图像信号的图像信号处理电路、
用于判定图像信号垂直扫描频率是50Hz还是60Hz的50Hz/60Hz检测电路、
图像信号的垂直扫描频率被判定为60Hz时输出彩色控制信号的彩色控制电路；
上述图像信号处理电路在接收到所述彩色控制信号后控制该图像信号的颜色。
CN 95100641 1994-02-25 1995-02-14 多制式电视机彩色控制系统 Pending CN1117247A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6027938A JPH07240928A (ja) 1994-02-25 1994-02-25 多方式テレビジョン受像機の色あい制御回路
JP27938/94 1994-02-25

Publications (1)

Publication Number Publication Date
CN1117247A true CN1117247A (zh) 1996-02-21

Family

ID=12234849

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 95100641 Pending CN1117247A (zh) 1994-02-25 1995-02-14 多制式电视机彩色控制系统

Country Status (3)

Country Link
EP (1) EP0669769A1 (zh)
JP (1) JPH07240928A (zh)
CN (1) CN1117247A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100753606B1 (ko) * 2006-08-14 2007-08-30 삼성전자주식회사 디스플레이장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625885A (en) * 1979-08-10 1981-03-12 Sanyo Electric Co Ltd Color television receiver
JPS6360687A (ja) * 1986-08-30 1988-03-16 Nec Home Electronics Ltd カラ−テレビジヨン受像機

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Publication number Publication date
EP0669769A1 (en) 1995-08-30
JPH07240928A (ja) 1995-09-12

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