CN1037438A - 电视接收机 - Google Patents

电视接收机 Download PDF

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CN1037438A
CN1037438A CN89102991A CN89102991A CN1037438A CN 1037438 A CN1037438 A CN 1037438A CN 89102991 A CN89102991 A CN 89102991A CN 89102991 A CN89102991 A CN 89102991A CN 1037438 A CN1037438 A CN 1037438A
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picture
signal
viewing area
memory
television receiver
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CN1021185C (zh
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吉野甫彦
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/488—Data services, e.g. news ticker
    • H04N21/4888—Data services, e.g. news ticker for displaying teletext characters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0884—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of additional display-information, e.g. menu for programme or channel selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • 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
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computer Graphics (AREA)
  • Television Systems (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

采用纵向尺寸较长的形状比为3∶4的阴极射线 管，在此阴极射线管的显示区内，形成二个形状比3∶ 4的画面，于是在剩余区域内形成第3画面，据此，在 毫不损伤画面的情况下，能同时在双画面和状态显示 (第3画面)上，显示出双图画中画、电传信息等图 象。

Description

本发明涉及在一个阴极射线管（以下简称CRT）的直面上，能够同时显示多付图象的电视接收机。
作为电视接收动的输入信号源，不仅仅局限于通常的电视广播，而且还包括着卫星转播、电传信息广播、字符图形信息网络系统、计算机显示、VCR（录象机）以及其他各种用途，需要显示大量的信号。在这些信息中，也有内室是相互联系的，有时希望在一个画面中显示出来。例如，电传信息广播等，并且，有时还希望同时看到其他的内容。例如，在观看体育节目，而同时又在看新闻时，就需要同时显示出电传信息文字。此时，作为双图象显示，可以采用在图象上重叠文字的办法，或者采用将一部分画面切去，而后使文字嵌入其间的方法。
然而，这种办法最大的缺点就在于，一部分图象因文字而受到损伤，影响了图象的完整性。
本发明的目的在于，提供仅使用一个显示器，既不损伤画面，而且能满足前述要求，并能进行多画面显示的电视接收机。
通常，以横向使用横纵横比为3∶4的阴极射线管（CRT），然而，本发明则是以纵向使用这种CRT。在这个纵方向上进行分配，设定CRT的短边为4，在纵方向上，在长度为3的地方划分开，作为一个横向尺寸较长的第一显示区域。该区域的纵向尺寸为3×3/4＝2.25。从剩余的部分中，除去保护频带（边界线）部分之外，以剩余部分的纵向尺寸为基准，按照纵模纵比3∶4划分出横向尺寸较长的画面，作为第2显示区域。再从剩余部分中，除去边界线，作为第3显示区域。即划分为大小各一个显示区域和纵长的小显示区域，共计3个显示区。
这样一来，例如，通常的形状比为3∶4的画面的电视信号，其水平扫描线，若采用NTSC制式时，为525线;若采用PAL/SECAM制式时，为625线，边界部分的扫描线为25（NTSC）或30线（PAL/SECAM），所以，总扫描线为525×2+25（NTSC）。或625×2+30（PAL/SECAM）＝1075线（NTSC）或1280线（PAL/SECAM）。另外，如果选定垂直扫描频率为60H2（NTSC）或SOH2（PAL/SECAM），则可以算出水平扫描频率，即NTSC时，为1075×60＝64.5KH2;PAL/SECAM时，为64KH2。
然而，由于第1显示区域与第二显示区域的画面尺寸不同，所以，若按照一定的速度扫描，到必须在扫描第二画面时，按照一定的比例减少扫描线。可以采取在第1显示区与第二显示区的界面处，仅仅变换垂直扫描速度;而在水平方向上，按一定不变的速度扫描等办法，此时电路构成容易，而且不怎么损伤图象质量。
并且，该垂直扫描速度不必限制在50/60H2，而是可以任意加以选择。特别是，该扫描速度为50H2时，由于产生闪烁，为了消除这种闪烁现象，有时可以选用其信频频率。同样，关于水平扫描速度，为了减少扫描线的粗糙度，有时可以采用对同一线进行两次扫描，用两倍于从前的水平扫描线的扫描线数进行扫描用
图1为采用本发明一个实例的电视机正面图，图2为采用本发明的电视接收机方框图，图3为表示垂直偏转波形和消隐，变换信号波形实例的波形图。
图1表示CRT画面的显示状态、图2为本发明的实例方框图。在图2中，10为调谐器，10V、10A为基带输出，分别为复合视频信号和声音信号。11，12，13为外部输入信号，11V、12V、13V为复合视频信号，11A、12A、13A为声音信号。此时，通常成为已经被解调的双声道立体声信号。从而，信号15A为选择声音信号10A时的1个声道信号。在其他情况下为双声道信号。为了简化图面，这里仅仅表示一个通道。15为变换输入声音信号的开关。14是变换外部输入图象信号11、12、13的开关。
21、22、23为AD变换器，AD1、AD2对视频信号进行数字式变换，AD3对声音信号进行数字式变换。31、32为场或帧存鳎砸桓龌娼写嬷?1、42、为控制器，在它的控制下，将输入图象信号存贮在帧存贮器31、32中，读出所存贮的信号。33为显示用的存贮器，43为控制该存贮器的控制器。这些控制器41，42的输出，通过母线相连，然后再与电信息解调器44、彩色处理器51，视频处理器52相连接。
34为电传信息的页码存贮器，是记录电传信息信号的存贮器。并且，电传信息解调器44的输出被加到矩阵电路71上，被变换放大为R、G、B模拟信号之后，加在显示器81上。
另外，54可产生扫描信号的处理器，54H为水平扫描信号，54V为垂直扫描信号。此输出经过放大器55放大之后，加在偏转线圈80上。声音信号经过AD变换器23进行数字化处理，然后通过立体声解调器26，变换成为主体声信号或双重信号。如前所述，由于外部输入信号通常为立体声信号（双声道信号），所以，在选择声音信号10A以外时，不需要开关15，因此此时，立体声解调器26的前级开关27进行联动转换，立体声解调器26被旁路。53为声音调整器，完成平衡、母线和高音等控制。63为DA变换器，是为了将数字信号变换成为横拟信号而设置的。它的输出，通过功率放大器72、73推动喇叭81、82。
24是在存贮器31，32，33中进行写入，读出等的时钟脉冲发生器，25为作为时钟基准的振荡器。
90可控制系统的微处理器，91为该处理器的时钟脉冲振荡器，92为键阵列。为了简化图示，来自微处理器90的控制信号全部按照母线方式控制的表示方法。粗黑线可控制母线。
下面说明工作情况。
首先，一旦将开关14设定在图示的开关位置时，来自调谐器10的图象信号10V经过AD变换器21、控制器41、以数字或方式记录在存贮器31中。另一方面。外部输入信号11中的图象信号11V经过AD变换器22、控制器42，以数字式方式记录在存贮器32中。并且，在这些信号中，如果有立体声信号，则通过解调器44，用键阵列92选择出立体声信号中所需要的更面，存入页存贮器34中。另外，由微处理器90控制的荧光屏显示信号，在符号发生器内部的显示控制器的作用下，将文字信号存入到存贮器33中。
下面说明读出顺序。
假定如图1所示的显示情况，如果来自调谐器10的信号显示在第1显示区P1中，其电传信息信号状态显示在第2显示区P2和第3显示区P3中，则根据前述水平频率（64.5KHz或64KH2），首先读出存贮器31的内容，图象被显示在第1显示区P1中。其次，在扫描图1的E部分时，读出存贮器32的内容，并将其变换成文字等，电传信息图象被显示在第二显示区P2中，在1H的剩余时间内，读出存贮器33的内容，变换成文字等，显示程序号、DAC的状态和输入开关状态等状态情况表示在第3显示区P3的一部分位置。此时，当存贮器的读出，从存储器31转换到33/34时，必须在保护频带扫描期间，减小垂直振辐。这是因为P2的画面面积小于P1，所以必须减小垂直方向的振辐。此控制由处理器54读出，如果计数由时钟信号形成的水平同步信号数，则能比较容易地决定上述转换位置。此输出信号为54V，其波形为图3V所示的波形。并且，与此开关的标记时间相同步的信号为54S，其波形如图3S所示，此信号可用于辉度变换等。
信号54B可消隐信号，为使保护频率部分变黑，通常加有水平和垂直消隐信号。当形成黑色之外的其他颜色时，当然可以把此信号加在R、G、B电路部分上。其波形如图3B所示。
另外，由于水平方向不容易改变偏转速度，所以当按照一定的速度扫描、读出存贮器时，将存贮器33和34视为一个存贮器，如果用存贮器的位置来区别存贮器33和34时，则没有必要通过P2、P3的位置来开关水平方向的扫描速度。然而，在P2和P3之间设置保护频带时，必须把消隐信号加在与此界面位置相当的位置。此信号被包含在54B之中。
90是控制本组成系统的微处理器。它除用来完成调谐和DAC的控制等通常的控制之外，还用来控制改变存贮器31、32、33的写入或读出顺序的变换，改变显示位置或加进图象的功能;控制读出速度的变更指令，控制器41、42的输出变换以及状态显示;控制电传信息、立体声解调器等。它们都由输入键阵列92进行控制操作。并且，当然可以利用输入通道的一部分，通过遥控来实现同样的控制。
如果采用这种结构;可以不必损失掉一部分图象，而用一只CRT就能进行双画面及状态显示。
从前的屏带显示要牺牲一部画面来显示状态，为了避开图象，就得缩小或者去掉文字。但是，也有通常需要显示的功能（如标明是否是主体声广播、立体声时，是否用立体声方式收听等），这些功能就只好采取在屏幕上显示。而且，要显示电传信息广播时也是一样的。现在仅仅进行整个画面的电传信息广播，或者在播放的画面上重叠以电传信息画面。在这种重叠情况下，播放的画面被显著地妨碍，所以不实用。本发明就完全不存在这种问题，需要收看什么画面，完全是观众（即使是多人）的自由。
而且，双画面由于其尺寸和位置不同，通过变换它们的位置，也可以自由选择，将某一画面变成更大的画面。甚至，还能够自由选择其设计（layout）
为了重新输入显示区P1和P2的内容，可以改变前述实例中存贮器的读出顺序。即开始时，如果用读取存贮器31时的时钟频率来读取存贮器34，则第1显示区P1内，显示出存贮器34的内容，然后，按照读取存贮器32/33时的时钟频率，在1H期间，按照时间分割，先读取存贮器33，后读取存贮器33/31，在垂直方向上以525线或625线，对其扫描时，则在画面的左下侧的显示区P3内，出现状态显示，在右下侧显示出比前者更小的电视画面。
同样，也可使上下画面交换，显示位置可以按照观众而要求选择。
由于仅使用一只CRT，所以电视机的体积小，而且可以变成多画面。甚至在喇叭的配置上，由于画面纵向尺寸较细长，因而易于配置在两边，形状并不会大型化，能安装较大尺寸的喇叭，这对于提高机器的音质也是有利的。
而且，由于本系统使用1帧（或场）缓冲存贮器，所以通过适当地选择时钟频率和读出的时标，即使过扫描，也能100%地显示画面。
如上所述，根据本发明，能够不损伤图象，而用一只显示器来显示两个画面和状态显示。

Claims (3)

1、一种电视接收机，按照画面纵向尺寸较长的方式，配置一只用作显示装置的阴极射线管，将其画面的一部分，按照画面横向尺寸较长的方式进行划分，以此作为第1显示区；然后，再按照使得画面剩余部分的横向尺寸较长的方式进行划分，以此作为第2显示区；再将其剩余部分作为第3显示区。
2、根据权利要求1所述的电视接收机：在第1或第2显示区内显示图象，在第2或第1显示区内显示与第1或第2图象有关的，或者对其补充说明的信息。
3、根据权利要求1或2所述的电视接收机：在第3显示区内，播放出表示第1和第2显示区中至少一方的状态信息。
CN89102991A 1988-04-28 1989-04-28 电视接收机 Expired - Fee Related CN1021185C (zh)

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Application Number Priority Date Filing Date Title
JP63106360A JP2829962B2 (ja) 1988-04-28 1988-04-28 テレビジョン受像機
JP106360/88 1988-04-28

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CN1037438A true CN1037438A (zh) 1989-11-22
CN1021185C CN1021185C (zh) 1993-06-09

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CN89102991A Expired - Fee Related CN1021185C (zh) 1988-04-28 1989-04-28 电视接收机

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US (1) US4991012A (zh)
EP (1) EP0339675B1 (zh)
JP (1) JP2829962B2 (zh)
KR (1) KR920008908B1 (zh)
CN (1) CN1021185C (zh)
DE (1) DE68913332T2 (zh)

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DE68913332T2 (de) 1994-09-29
EP0339675B1 (en) 1994-03-02
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DE68913332D1 (de) 1994-04-07
JPH01276977A (ja) 1989-11-07
KR920008908B1 (ko) 1992-10-10
CN1021185C (zh) 1993-06-09

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