CN1139341A - 采用频道引导体信息和第二视频信号处理器显示第二频道信息的电视接收机 - Google Patents

采用频道引导体信息和第二视频信号处理器显示第二频道信息的电视接收机 Download PDF

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CN1139341A
CN1139341A CN96101949A CN96101949A CN1139341A CN 1139341 A CN1139341 A CN 1139341A CN 96101949 A CN96101949 A CN 96101949A CN 96101949 A CN96101949 A CN 96101949A CN 1139341 A CN1139341 A CN 1139341A
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channel
programme
picture
pip
browse
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CN1161978C (zh
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K·W·马泽
J·W·福勒
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Technicolor USA Inc
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Thomson Consumer Electronics Inc
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    • 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
    • H04N21/485—End-user interface for client configuration
    • 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
    • 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
    • H04N21/4884—Data services, e.g. news ticker for displaying subtitles
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control

Abstract

具有第二画面显示能力(与PIP或POP)的电视系统包括两个信号处理电(140，144，150；126，136，143，145，144，150)和接收舆的频道引导的电路(142)。响应于“BROWSE”命令，控制器(180)保持第一频道做为主画面(300b)的源，显示第二频道电视节目的文本(305b)，激励第二画面显示电路显示该电视节目。使用者可以同时看到第二频道电视节目的文本说明和电视节目，而不用改变提供主画的第一频道。

Description

采用频道引导信息和第二视频信号处理器 显示第二频道信息的电视接收机
本发明涉及电视接收机领域，特别涉及采用频道引导信息和第二视频处理电路的电视接收机。
现在，与以前相比，更多的电视频道提供给观看者。有些有线电视提供30个频道，商业卫星系统提供高达150个频道。有几种不同的广播频道引导显示装置能帮助使用者把所有这些频道组织起来使用。这些广播频道引导显示装置提供正在调节的电视画面在屏文本说明，如果使用者对说明感兴趣，可以按遥控器的一个键(例如ENTER)来调谐浏览的频道。然而，如果只得到另一电视画面的文本说明，就不能看到“浏览”(即未调谐)的频道说明的视频信号。这样，使用者不能充分得到所给出的浏览频道的全部信息。
具有第二画面显示能力(如PIP或POP)的电视接收机系统包括两个信号处理结构和电路用于接收发射的频道引导。响应于“浏览”指令，控制器保持第一频道作为主画面的源，显示与第二频道的电视画面有关的文本，激励第二图象显示电路显示该电视画面。在这样方法中，观看者可以同时得到第二频道电视画面的文本说明和看到第二频道电视画面的第二图象，而不用改变第一频道的主画面。
图1示出了本发明的电视接收机的简化框图。
图2a、2b和3a示出了先有技术的电视接收机的显示屏。
图3b和4示出了本发明实施例的电视接收机的显示屏。
图5示出了图1控制器的控制程序的相关部分。
图1以框图的形式示出了接收和处理广播电视信号的电视接收机的电路。这种接收机中产生的先有技术图象如图2a和2b所示。图1的接收机还包括一PIP处理器用于尺寸小很多的信号，如插入图象。图2b还示出了要解决的问题，如下面所解释的。
图2a先有技术的屏幕显示示出了在一给定频道上接收的主视频图象：帆船。先有技术图2b的屏幕显示示出了帆船的主视频图象，和当前调谐的电视画面的文本说明，在这种情况下，是大西洋游艇比赛。该说明随某一频道的电视信号发送出去，并存在存贮器中。这个说明可通过按摇控器的一个键，例如INFO，而显示在屏幕上。
先有技术图3a示出了使用者经遥控器发出的“浏览”指令的结果。注意；在图3a中，主画面300a与图2b中的主画面200b(例如，帆船)相同，但是文本说明305a不是指当时调谐的频道(例如；有线频道41)，而是另一频道(如有线通道42)的另一电视节目(如周六高尔夫)。注意：词“BROWSE”(310a)出现在屏幕(300a)的上右部分，以提醒使用者，所显示的文本说明(305a)与显示的视频图象没有关系。
根据本发明的屏幕显示示于图3b。在图3b中，BROWSE指令导致另一电视节目的文本说明的显示，使主调谐器保持调谐到当前频道上，且使文本消息(310b)出现在屏幕的上左部分，如上面关于图3a的描述。然而，与先有技术相反，本发明的设备能显示文本消息“PIPBROWSE”，使第二(PIP(即画中画)或POP(即画外画))调谐器调到相应于显示的文本说明的载有电视节目的频道，并在予定位置显示PIP或POP图象(320b)，就不会干挠文本说明的显示。在这个实施例中，显示的短语PIP BROWSE(310b)提醒使用者；所显示的文本说明(305b)是指所显示的PIP(或POP)视频图象。以这种方式，视频信息被传送到观看者，它实际确实相应于所显示的文本说明。注意：在先有技术中，产生图3a的屏幕显示的接收机不需要调谐指令被查找或产生。相应于目录中下一个频道的显示文本说明仅从存贮器的下一个区段读出。
相反，本发明中，搜索RAM182、182’，使频道调谐信息与来自BROWSE模式说明的频道信息匹配，这个频道调信息加到PIP(或POP)调谐器126。因此，可以认为，若观看者在BROWSE特征被调用时正在使用PIP(或POP)，则BROWSE系统将回到“只有文本说明”系统。在使用者的命令下留下PIP(或POP)显示。在这种情况中，为了避免混淆，当PIP是在BROWSE特征控制下时，可显示标志“PIPBROWSE”，在PIP由使用者控制时可以显示标志“BROWSE”。注意，在图4，PIP 420被激励，示出频道03的跑步；文本显示405说明频道11的高尔夫锦标赛，标志“BROWSE”410显示为一指示，说明文本说明405没有加到PIP显示420。注意，当BROWSE被激励时，PIP显示420移动到一个不会与文本说明405的显示相干挠的位置。
回溯前面，现描述完成本发明的图1的设备，RF信号加到信号分离装置110的输入端，来自信号分离装置110的第一个输出端的RF信号加到主调谐器124和插入调谐器126。上述两个调谐器都由控制器180控制。控制器180包括一RAM182、CPU184和ROM186。控制器180可以是一个微电脑或微处理器或习惯上所指的集成电路控制器。RAM182和ROM186可设在控制器180内部也可设在外部，根据要存储的文本数据量，最好设置一个部RAM182’。控制器180还控制一些与本发明不特别相关的电视机的其他部分，例如电源190，偏转部分192和会聚组件194。RAM182’可用于存储要显示的文本说明，以及PIP BROWSE特征用频道调谐相关数据。所要求的说明和数据经数据解码器的输出线142’耦合到控制186。
主调谐器124和插入调谐器126分别把接收的RF信号转换成中频(IF)信号，并把该IF信号分别加到IF放大器134和136。然后，音频信号提供给音频放大器框164的一个输入端，在其内解调立体声音号、放大该信号并将其提供到一对喇叭166。
主调谐器(主图象IF单元)134和插入调谐器(插入图象IF单元)136交叉连接到I/O开关结构138的各极，I/O开关138包括视频开关SW2和SW3，这两个开关在控制器180的控制下独立操作。开关SW3的接帚(即可动触点)连接到插入图象解调器143的输入端，将IF信号转换为基带视频信号，并加到PIP单元145供根据控制器180的控制进行取样和存储。PIP单元145的输出加到视频处理器144的一个输入端。
开关SW2的接帚(可动触点)连接到主图象解调器140的输入端，把IF信号转换为基带视频信号，加到视频处理器144的另一输入端。视频处理器144产生组合图象，组合图象中包括主图象和PIP，其中PIP图象是PIP单元145提供的。视频处理器144和输出加到显像管驱动器150进行放大。显像管驱动器150把放大的信号加到显示器件170的输入端。当然，显示器件170可以是显像管，一组投影装置或LCD器件。
音频单元164在控制器180的控制下工作，它包括音频选择电路，用于选择伴随主图象的适当音频信号。关于这方面，音频单元164的一个输入端用于接收与主信号相关的音频信号，第二输入端用于接收与插入信号有关的音频信号。
电源190包括待用(standby)和工作电源。偏转单元912提供水平(H)和垂直(V)偏转信号，会聚单元194控制显示器件170上的R、G、B彩色信号的合适位置。
参见图3b和4、流程图5和图1的电路描述，本发明PIP BROWSE特征的工作。在图3b中，接收到的帆船比赛的视频图象作为插入画面320b。高尔夫锦标赛的文本说明305b在文本说明区显示，标志“PIP BROWSE”310b显示在屏幕的顶部。
“PIP BROWSE”伴随着控制器的控制程序部分的使用，见图5。在接收到来自遥控器(未示出)的命令后，进入步骤500。在步骤500，检查该命令，确定是否是BROWSE命令。如果是，在步骤515设置BROWSE标志，指示BROWSE功能正起作用。然后流程进到步骤520，确定PIP是否已经激活。如果没有，在步骤524设置PIPBROWSE标志。在步骤525，PIP调谐器126调谐到BROWSE目录的下一频道，PIP图像显示于与文本说明不干扰的位置。在步骤530，显示BROWSE目录中下一个频道正在运行的节目的文本说明，流程在步骤580退出。
在步骤520，如果发现要激励PIP，它可以被激励，因为使用者已经使用PIP特征；或者流程已处于PIP BROWSE特征中间。在步骤522，进行测试，确定是否已设置PIP BROWSE标志。如果是，则流程处于PIP BROWSE特征中间，流程进到步骤525，输出PIP相关的命令。如果没有设置PIP BROWSE标志，则PIP正为观看者使用，流程对一个文本模式只默认BROWSE特征，进到步骤527，显示BROWSE消息(与PIP BROWSE消息相反)。然后流程进到步骤530，通过步骤525的PIP相关命令。
如果在步骤510，收到的命令不是BROWSE，命令取“否”路径到步骤540，确定收到的命令是否是“ENTER”命令。如果不是，则命是涉及其他区的命令解码程序，这部分流程在步骤580退出。如果收到“ENTER”命令，取“是”路径从步骤540进到545，检测是否设置了BROWSE标志。如果没有，则在步骤580退出流程。如果有，则取“是”路径检查是否设置PIP BROWSE标志。如果有，流程进到步骤555，从屏幕除去文本显示，清除PIP BROWSE标志(即复位)，清除BROWSE标志，主调谐器124调到PIP调谐器频道，关断PIP。然后流程在步骤580退出。如果在步骤550没有设置PIPBROWSE标志，则流程进到步骤560，几秒钟后，从屏幕除去文本显示，清除BROWSE标志，主调谐器124被调到文本说明相应的频道号(即，BROWSE频道)。
在制造电视接收机中常用的方法是在主频道安装一个高质量的调谐器，在PIP频道安装一个低质量的调谐器，因为PIP图像只包括了给定频道的样本信号，它与主图象间的差别并不显著。此外，在步骤555，如果调谐器124和126具有相似的质量，人们通过激励图1的开关SW2和SW3就能转换信号，而不用象PIP调谐器126一样重调主调谐器124到同一频道。
当PIP BROWSE特征被激励，观看者有可能把PIP图象移到屏幕上所希望的位置。这个使用者设定的新位置可以经控制器180存入存储器182、182’，供后续PIP BROWSE部分使用。PIP BROWSE特征的PIP画面位置应当与正常PIP图象位置分开保留。
有些观看者可能不喜欢使用PIP BROWSE特征。因此，可以设想该特征是可经菜单选择的，还应注意到，与电视节目相关的文本描述数据可以在电视节目的垂直消隐期间传输，无论是来自正在当前调谐的频道上的XDS(扩展数据业务)数据流还是来自予接收的或存储的数据流，该数据流包含所有频道的信息但在一特定频道上传送。与电视节目有关的文本说明也可以作为卫星系统频道引导的一部分被传输。上面给出的两个替换方案可以认为是在所附权利要求的范围之内。
在说明书和权利要求书中所用的术语“电视接收机”是指具有显示器件的电视接收机(电视机)和没有显示器件的电视接收机(如录像机、卫星接收机和有线转换设备)。

Claims (5)

1.电视系统，包括：
第一电路装置(140，144，150)，在显示器件(170)上产生主画面(300b)；
第二电路装置(126，136，143，145，144，150)，在所述显示器件上产生第二画面(320b)，所述第二画面包括电视节目；
其特征在于；
连接到所述第一和第二电路装置之一的解码装置(142)，用于接收和解码有关电视节目的说明信息；和
连接到所述第二电路装置和所述解码装置的控制器装置(180)，用于在所述显示器件上显示所述信息；
所述控制器装置(180)响应于接收到予定的命令(BROWSE)，使不同的电视节目作为所述第二画面(525)显示于所述显示器件上，同时，伴随所述主画面使所述不同的电视节目(530)的说明信息显示于所述显示器件上。
2.根据权利要求1的电视系统，其特征在于，所述第二电路装置包括一调谐器，响应于所述控制器选择所述不同的电视节目。
3.根据权利要求1或2的电视系统，其特征在于，所述予定命令(BROWSE)是菜单可选项。
4.根据权利要求1或2的电视系统，其特征在于，响应于所述予定命令，所述第二画面显示于所述显示屏的区域没有被所述与电视节目有关的所述信息所占据。
5.电视系统中的一种使用方法，该电视系统包括第一电路装置(140，144，150)用于在显示器件(170)上产生主画面(300b)；第二电路装置(126，136，143，145，144，150)在所述显示器件上产生第二画面(320b)，所述第二画面包括电视节目；解码装置(142)连接到所述第一和第二电路装置之一用于接收和解码与所述电视节目有关的说明信息；以及与所述第二电路装置和所述解码装置连接的控制装置(180)，用于在所述在所述显示器件上显示所述信息，所述方法特征在于如下步骤：
从使用者接收命令：
确定(510)所述命令是否是予定的命令；和
在所述接收的命令是所述予定命令的情况下，完成如下步骤：
保持所述第一电路装置产生的所述主画面；
把不同的电视节目在所述显示屏上显示为第二画面；和
在所述显示屏上显示与所述不同电视节目有关的说明信息(305b)。
CNB961019492A 1995-04-05 1996-04-03 能够显示第二频道信息的电视设备 Expired - Lifetime CN1161978C (zh)

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US08/419,649 US5557338A (en) 1995-04-05 1995-04-05 Television receiver using received channel guide information and a secondary video signal processor for displaying secondary channel information
US419649 1995-04-05

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CN1819636B (zh) * 2005-02-07 2010-08-25 Lg电子株式会社 在自动会聚期间显示视频的方法
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JPH08289220A (ja) 1996-11-01
CN1161978C (zh) 2004-08-11
JP3507619B2 (ja) 2004-03-15
KR100336202B1 (ko) 2002-11-30
EP0737007A2 (en) 1996-10-09
EP0737007A3 (en) 1997-02-26
DE69607674T2 (de) 2000-08-17
MY127454A (en) 2006-12-29
SG50648A1 (en) 1998-07-20
KR960039899A (ko) 1996-11-25
DE69607674D1 (de) 2000-05-18
US5557338A (en) 1996-09-17

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