CN100401755C - 用于显示电视节目及相关正文的方法与设备 - Google Patents

用于显示电视节目及相关正文的方法与设备 Download PDF

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CN100401755C
CN100401755C CNB2004100282273A CN200410028227A CN100401755C CN 100401755 C CN100401755 C CN 100401755C CN B2004100282273 A CNB2004100282273 A CN B2004100282273A CN 200410028227 A CN200410028227 A CN 200410028227A CN 100401755 C CN100401755 C CN 100401755C
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亨利·C·尤恩
丹尼尔·S·克欧
罗伊·J·曼考维茨
埃尔西·Y·莱翁
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Abstract

一位电视观众可用一种PIP格式,在背景上显示来自节目计划数据库(22)的节目相关信息,例如电视节目表;和在PIP窗口(42)上显示选自所显示节目表的一个节目的活动实时图象,或者所存储的视频剪辑图象。背景信息的全部文本都位于PIP窗口之外。在一个实施例中,当观众通过一个光标(48)或一个代码号,从当前电视节目表的显示中选择一个特定节目时,相应的节目就自动地呈现于PIP窗口中。

Description

用于显示电视节目及相关正文的方法与设备
本申请是1995年8月31日提交的、题为“用于显示电视节目及相关正文的方法与设备”的中国专利申请第95195334.6号的分案申请。
技术领域
本发明涉及电视领域,更具体地说,涉及在电视屏幕上同时显示一些视频节目及相关正文的方法与设备。
背景技术
几年来,一些电视接收机已具备画中画(PIP)能力。按照PIP格式,在屏幕背景上显示一个电视频道的活动、实时图象;并且在一个覆盖于背景的一个小区上的PIP窗口中显示另一个电视频道的活动、实时图象。因为一个电视接收机同时显示两个频道,故需要两个调谐器。观众通过按一下他或她的控制器的一个PIP键,输入PIP模式。然后,观众通过重新设置适当的调谐器,能够或者变更背景频道,或者变更PIP频道。为了交换背景与PIP的图象,观众只需按一下SWAP键。为了使PIP窗消失,观众就再按一下PIP键。
电视节目指南有助于电视观众选择要看的节目。这种电视节目指南按周日、日时、频道和节目名称,列出可看的电视节目。多年来,一直以硬拷贝形式发布电视节目指南。最近,如Levine专利4,908,713所述,电视节目指南已开始采用电子形式。换句话说,在一个连接于电视接收机的电子存储器中,存储节目单一览表。由观众根据电视屏幕上显示的指令,从存储器检索节目单。
虽已盛行电视节目指南,但许多观众仍通过一个个频道地开关电视调谐器,并且观察屏幕上各个频道正在接收什么节目,来对节目进行选择。这一过程有时叫作“切换”。
Emanuel专利5,161,019公开一种自动形式的频道切换。通过一个个频道地转接电视接收机的调谐器,相继地扫描一组预先选择的频道。一个在每个频道上接收的节目的静止图象被存于存储器中。在全部频道已被扫描以后,就在电视屏幕上同时显示来自全部频道的静止图象。这一过程除了使观众获得可从电视节目指南得到的信息之外,还获得关于节目选择的更多的信息,即所显示的实际节目的静止图象。
发明内容
根据本发明,在一个电视监视器的屏幕上的PIP窗口中,显示电视节目的活动图象,并且在该屏幕上的背景中,显示与该电视节目有关的正文信息。最好是,还用电视监视器的声音系统来重放PIP窗口中显示的电视节目的声频部分。在屏幕上把正文信息安排成:没有任何一条信息是被活动图象覆盖的。
在一个实施例中,正文节目相关信息(PRI)是一个电视节目一览表。一览表中的一个节目单按照题目和时间和/或频道,识别PIP窗口中的电视节目,该节目包括活动图象。
为了便于频道切换,电视观众能够使用PIP格式去显示,在背景中来自节目一览表数据库的当前电视节目单,和在PIP窗口中选自所显示节目单的节目活动、实时图象。尤其是,当观众用光标或代码号从所显示的当前电视节目单选择一个特定节目时,相应的节目就自动呈现于PIP窗口中。这样,观众可通过在背景中相继地选择各个节目单,进行频道切换。当观众找到一个他想看的节目时,他就留下该PIP格式,并返回全屏幕电视视野,而调谐器也已调到所需的节目。为此,观众能够交换背景和PIP窗,然后使该窗消失,从而在全屏幕上留下所需的节目;或者可把设备配置成,用一个单独的步骤返回全屏幕视野。
为了可以看到为将来播放安排的节目而又不耽误看当前正在观看的节目,电视观众可以使用PIP格式去显示,在背景中来自节目一览表数据库的关于某一具体频道的电视节目单,和在PIP窗中关于这个频道的当前节目的活动、实时图象。尤其是“当观众变更频道时,关于这个频道的当前节目自动地呈现于PIP窗口中。观众可以控制背景去显示未来几天期间的,例如一周的节目单。这样,观众能够在确定关于电视调谐器所调频道的未来节目的同时,继续观看电视节目。当观众找到一个他想看的节目时,背景消失,以全屏幕留下关于调谐器所调频道的节目。
在另一个实施例中,电视观众可以使用PIP格式去显示,在背景中来自节目一览表数据库的未来电视节目表,和在例如由光标选择的背景显示中一个节目表的视频限幅的活动图象。
在又一个实施例中,正文节目相关信息(PRI)是一种在与显示于PIP窗的电视节目同时发生的电视信号的场消隐期间播放的信息。
附图说明
用一些图说明一些为实施本发明设想的最佳模式的具体实施例的特征,在诸图中:
图1是一个电视接收机的示意方块图,它具有一个电子电视节目指南,可体现本发明一个实施例的原理;
图2至5是根据图1所示实施例形成的电视屏幕;
图6是一个遥控器的顶视平面图,它用于操纵图1所示电子节目指南;
图7至14是流程图,说明观众怎样操纵图1所示电子节目指南,以及观众在这种操纵期间遇到的屏幕格式;
图15是一个示意图,描述图7至14所示提示与指南体系;
图16和17是一些为了用彩色编码指定PIP窗口中节目标题和节目描述区中节目标题而形成的屏幕;
图18是一个为了用电子节目指南显示一个实时电视节目而形成的屏幕,借此用一个没有PIP芯片的电视接收机模拟图2、3、4或5所示的屏幕格式;
图19是一个观众操纵电视节目指南的替代方法的说明图;
图20是一个根据本发明另一实施例原理的电视接收机示意方块图,它具有一个显示PRI的电子电视指南;
图21是一个为了显示由图20所示接收机恢复的PRI而形成的屏幕;
图22是一个RAM存储器数据库,说明存储器的静态与动态区;
图23是一个由该系统接收的远程装入程序包;
图24表示RAM存储器中所含的存储器位图;
图25表示RAM存储器的静态区中所含的预先建立的时间表数据结构;
图26说明一个显示信息包数据结构;
图27说明一个显示信息包数据结构的一部分;
图28说明一个扩充题目显示表;
图29表示RAM存储器的静态区中包含的频道图数据结构;
图30表示存储器的静态区中包含的控制数组数据结构;
图31表示位于RAM存储器的静态区中的调用字母图数据结构;
图32表示位于RAM存储器的静态区中的记录队列数据结构;
图33至35是按照本发明另一实施例形成的电视屏幕;
图36至38是流程图,说明观众怎样操纵包括图33至35的屏幕格式的图1电子节目指南;和
图39是示意图,描述图36至38所示的提示与指南的体系。
具体实施方式
在本发明的诸实施例的下面描述中,用共同的标号表示相同的部件。如果把所有实施例的功能部件都并入一个单独的系统中,就能够共用这些部件,并且它们能够实现所述实施例的全部功能。
在一个最佳实施例中,本发明显示关于电视节目一览表的信息,和一个分成三部分的电子电视节目指南中的内容。一种屏幕格式是时间具体节目指南(TISPG);另一种屏幕格式是频道具体节目指南(CSPG);和第三种屏幕格式是题目具体节目指南(THSPG)。在每一种情况下,都在PIP窗口中实时地显示当前播放电视节目的活动图象。
参阅图1,把一个象地面天线或电缆线之类的电视信号源10连接到电视调谐器11上。调谐器11的输出是一个包含视频与声频电视信息的调制中频信号。用一个中频放大器(IF AMP)12把调谐器11分别连接到一个图象信号检测器(PI CTURE DET)13和一个伴音信号检测器(SOUND DET)14上,它们分别产生基带视频和声频信号。用一个伴音放大器(SOUND AMP)15把声频信号耦合到一个扬声器16。用一个未示出的视频放大器把视频信号耦合到开关18的一个输入端。把伴音检测器14和图象检测器13分别连接到一个盒式磁带录像机(VCR)17的声频输入端和视频输入端。(另一方面,如果要利用其内部调谐器和解调电路,就能把电视信号源10直接连接到VCR 17的RF输入端。)把VCR 17的输出端连接到开关18的另一输入端。把开关18的输出端连接到一个常规画中画(PIP)集成电路芯片19的一个输入端。把PIP芯片19的输出端连接到一个具有屏幕(未示出)的电视接收机或监视器(TV)20的视频输入端。
在一个节目一览表存储器22中用电子方法存储一个用于一段规定时期,例如一天或一周的全部可用频道的节目单一览表的可更新数据库。这些节目单通常包括每个节目的标题,节目说明,星期几,该天的开始时间,节目长度,以及节目被发送、从而可在源10接收的频道。在本发明的一个最佳实施例中,存储节目单的周期是随指南而不同的,取决于观众的挑选和爱好。例如,显示TISPG和CSPG所需的信息可存储一天或两天,而显示TSPG所需的信息可存储一周或更长。通过以熟知的方式向电视接收机播放一个电视频道的垂直消隐期间(VBI)的连续数据链路,可更新数据库。另一方面,通过拔去存储器22,并且用一个有着更新数据库的存储器去取代它,可更新该数据库。把存储器22连接到一个微处理器24,该处理器被编程以控制所述设备的操作。把微处理器24的操作程序存储到一个只读存储器(ROM)26中。一个观众输入器28最好是远距离IR控制器形式的,被耦合到微处理器24,以提供来自观众的命令。一个视频处理器30被耦合于微处理器24。当观众想看电视节目单时,微处理器24就从存储器22调用节目一览表数据库的一部分,并且把它耦合到视频处理器30,在此形成节目表,供显示之用。最好是,存于视频处理器30中的信息是一个显示于电视接收机30屏幕上的位图。视频处理器30被连接于PIP芯片19的另一输入端。最好是,观众输入器28通过在电视接收机20屏幕上移动光标,控制微处理器24。为此,把微处理器24和视频处理器30耦合到一个光标位置寄存器32。(另一方面,观众能够选择那些在屏幕上显示的信息项目,方法是把赋予这些项目的代码键入观众输入器28中。)还把微处理器24耦合到调谐器11,供频道变更之用;到VCR 17,供播放/记录选择和启动/停止之用;到开关18,供选择它的一个输入端之用;和到PIP芯片19,供选择PIP操作模式之用。
在图2至5中示出电子节目指南的格式。每种格式都有一个背景区40,和一个位于屏幕左上角的覆盖PIP窗口42。在PIP窗口42的一个子区42a中,显示实时,即6:15p.m.背景区40包括一个位于屏幕顶部的标题和信息提示区43,一个位于屏幕右上角的与PIP窗口42相邻的节目说明区44,和一个位于区域42与44下面的一个节目一览表区46。节目说明区44包括所说明节目的起始时间和长度(持续时间)。观众能够垂直地移动光标48,以使显示于区46中的一个节目单变为高亮度。光标48的高亮度背景和节目说明区44的背景具有相同的颜色或色调。在每一种格式中,都在PIP窗口42中显示当前播放电视节目的实时和当前时间的完整活动图象,并且用监视器20的伴音系统再现显示于PIP窗口42的电视节目的声频部分。显示于区域43、44和46的信息都随格式而异。
在图2中示出TISPG屏幕格式的一个版本,即显示一些正在以当前时间播放的电视节目的节目单的版本。在下面的说明中,这种格式有时叫作“NOW”指南或“ALL CHANNEL”指南。节目一览表区46具有一个频道名称栏或调用字母栏,一个频道号码栏,一个节目标题栏;区46的每一行都表示一个独立的节目列表。在PIP窗口42中显示那些由光标48高亮度化的当前电视节目的活动实时图象,而在区44中显示一个高亮度化节目的简要节目说明。
在图3中示出TISPG屏幕格式的另一个版本,它在区46中显示在未来时间,即8:00p.m.播放的节目单。在下面的说明中,这种格式有时叫作“NEXT”指南。观众能够选择以例如半小时间隔显示的节目单的未来时间。为显示于区46中的节目单而选择的未来时间,即8:00p.m.示于区43的一个子区43a中。在区44中显示一个在区46中用光标48高亮度化的节目表的简要节目说明。当前正在播放的节目仍然显示于PIP窗口42中,并且在PIP窗口42和区46之间以不同于光标48的颜色或色调的背景显示一个标题49,它用频道名称、频道号和节目题目来标识当前节目。
在图4中,示出CSPG屏幕格式。在下面的说明中,这种格式有时叫作“THIS CHANNEL”指南。在区46显示一个所选频道,即FOX频道7的全部节目单,其时间范围为从当前播放节目时间到未来一段特定时期,例如24小时或直至下一天结束为止。区46具有一个时间栏和一个节目题目栏;区46的每一行都表示一个独立的节目单。在PIP窗口42中,显示一些当前电视节目的活动实时图象。如果光标还高亮度化当前的节目,就在区44中显示一个当前节目的简要节目说明。如图4所示,如果光标高亮度化另一个节目单,就在区44中显示高亮度化节目的一个简要节目说明,并且在标题49中按时间和题目标识当前的节目。
在图5中,示出THSPG屏幕格式。在下面的说明中,这种格式有时叫作“SORT”指南。一个所选择主题或小主题,即ALL MOVIES的节目单示于区46中,具时间范围为从下一个播放节目时间到未来一段特定时期,例如一周。区46具有一个标识主题或小主题、日期和天的首栏46a,即ALL MOVIES DEC 12MON;一个题目栏;一个起始时间栏;和一个频道名称或号码栏。区46的每一行都表示一个单独的节目单。在PIP窗口42中,显示当前电视节目的活动实时图象,并且在标题49中,用频道名称或号码和题目来标识当前的节目。在区44中显示一个用光标48强调的节目的简要节目说明。
在视频处理器30中形成背景40的全部4个区。相当于在屏幕上呈现PIP窗口42的区的视频处理器30的存储空间是留有空位的,即,虽然PIP窗口42覆盖在背景区40上,但它并未遮盖背景区40的任何信息。借助在观众输入器28上的一对上/下箭头,观众能够垂直地移动一个光标48,以使显示于区46中的一个当前播放的电视节目单高亮度化。最好是,为了减小显示节目一览表时的延迟,即使在同一时间只显示一小部分节目单,也要在视频处理器30中存储特定屏幕格式的全部节目单。当光标到达区46中的顶或底部节目单时,微处理器24还从视频处理器30调用更多的节目单,以便把它们显示于电视接收机20的屏幕上。
在全部格式中,都在PIP窗口42中,显示那些用光标48高亮度化的当前电视节目的活动实时图象;在区44中,显示高亮度化节目的节目说明;在区46中,显示一种或另一种节目单;和在标题区43中,显示一个或多个提示,如下面所详述。用监视器20的伴音系统,再现显示于PIP窗口42中的电视节目的声频部分。PIP显示、伴音再现和区44中的节目说明,使观众可以确定是否观看高亮度化的节目。当观众一个个节目单地垂直移动光标48时,显示于窗口42中的当前电视节目和显示于区44中的节目说明,就相应地自动变更,以匹配区46中的高亮度化节目。当光标从一个节目单移动到另一个节目单时,调谐器11就被调节到高亮度化节目的频道,使该节目能显示于PIP窗口42;微处理器24就从节目一览表存储器22中,调用高亮度化节目单的节目说明;且视频处理器30形成这个节目说明,使它能显示于区44中。
最好是,两种级别的细节可用于节目说明。一般说来,节目说明的第一级细节显示于区44中,如上所述。当需要更多细节时,观众就操作输入器28,以显示节目说明的第二级细节。存在两种用于显示第二级细节的方案。作为一种方案,第二级细节能够取代区44中的第一级细节。这样作有其优点:当显示关于节目说明的更多细节时,观众能够继续看节目单。作为另一方案,第二级细节能够取代区46中的节目单。这样作也有其优点:同第一级细节相比,有更多的空间可用于显示第二级细节。
参照图6至14,说明由观众采取一些步骤,实施电视节目指南的最佳实施例。观众输入器28最好采用一种与连接于微处理器24的红外接收器进行通信的、手持遥控红外(IR)发送器的形式。如图6所示,IR发送器具有一个其上装有一些控制按键的外壳50。在上下箭头按键58和60的上方,装有一个GUIDE/TV按键52,一个INFO按键54,和一个VCR PLUS+按键56。在向下箭头按键60的下方,装有一排按键62、64、66和68,它们分别用颜色红(R)、绿(G)、黄(Y)和兰(B)来标记。在电子指南的区43中,显示红、绿、黄和兰色提示。为了在屏幕上选择一个提示,就按一下有着相应颜色的IR发送器的按键,即,为了在屏幕上选择兰色的提示,就按一下兰色的按键68。
设计屏幕格式和各指南之间的联系时,要考虑两个目标:第一,在输入电子指南之前,总是显示观众正在观看的节目;第二,在操纵电子指南的同时,从不离开它,直至观众转向TV模式为止。如下所述,诸指南是在一种单向分级结构中彼此相关的;在屏幕上,由对遥控发送器上按键颜色的编码的提示,访问该分级结构。在分级结构的每一级,观众可以选择:返至一个主于指南,或下移到一个分级结构中的下级指南。在最下级,唯一的选择是回到主干指南。在每一级,都用提示在屏幕上显示观众的选择,使在观众输入器28上用按键操纵指南的需求减至最小。
如图7中用一个方框70所示,观众通过按遥控发送器上的GUIDE/TV按键52,输入电子指南。如方框72所示,然后在屏幕上显示所谓“NOW”指南。这是电子指南的“主干”,因为它是进入每个其他指南的起点。
如图8至14中的每个图中的方框74所示,观众可以对区46中的节目单上下移动光标,以选择一个特定的节目。如图8至14中的每个图中的方框76所示,观众按GUIDE/TV按键52,以回到全屏幕的TV模式;和按INFO按键54,以显示区44或区46中节目信息的第二级细节。
在图7中,方框80描述NOW指南的布置,它是一种TISPG屏幕格式的版本。区43有一个兰色的“CHOICE”提示,和一个按照“NOW”格式来标志格式,并且显示日期、天和时间的标题。如方框82所示,当观众按遥控发送器上的兰色按键68(图6)时,就有4种提示选择呈现于观众面前。如图8中方块84所示,在一个“ALLCHANNEL”指南中显示这些提示选择。
方块86表示“全部频道”指南,它除了区43之外,都相同于“NOW”指南。这是一个过渡指南,因为观众可以通过跟踪所显示的提示,输入处于分级结构的较下级的其他指南。在“ALL CHANNEL”指南中,显示一个红色NOW提示,一个绿色CSPG提示,一个黄色NEXT提示,和一个兰色SORT提示。如方框88所示,在图8至14的每个指南中,当观众按遥控发送器上的红键62时,就返回到图7的NOW指南。
如图8的方框90和图9的方框92所示,当从“ALL CHANNEL”指南中按绿键64时,就显示一个上述CSPG格式的“THISCHANNEL”指南。方框94描述“THIS CHANNEL”指南,它处于分级结构的底部。因此,在区43中只显示一个提示,即红色NOW提示,它使观众可以返回到NOW指南。区43还显示专用频道的名称和频道号码,例如ABC,频道7。
如图8的方框96和图10的方框98所示,为了显示“NEXT”指南,观众按遥控发送器上的黄键66。用方框100描述具有TISPG格式的NEXT指南。最初,在区46中显示当前的节目,象NOW指南(图2)情况一样。在NEXT指南中的区43除了有红色NOW提示之外,还有一个绿色向上箭头提示,一个兰色向下箭头提示,和在向上和下箭头之间的指南中显示的节目时间。区43还显示用来播放所列节目的时间,即最初的当前时间。每当观众按兰键68时,指南就推进半小时,从而显示半小时后的时间播放的节目,如方框104所示,并且显示于区43中的时间也相应地变更。每当观众按绿键64时,该指南就后退半小时,从而显示半小时前的时间播放的节目,如方框102所示,并且显示于区43中的时间也相应地变更。当按键64和66被按,以便在区46中显示未来节目时,标题49(图3)呈现,以便标识正在PIP窗口42中显示的当前实时电视节目。NEXT指南处于分级结构的底层,因此从这一指南出来的唯一路线是,返回到NOW指南的REO提示。
如图8的方框105和图11的方框106所示,当观众按兰键68而又处于ALL CHANNEL指南中时,就显示“SORT”提示的第一级。如方框108(图11)所述,除了红色NOW提示之外,还有SORT按键的第一级,该按键包括区43中的一个绿色MOVIES提示,一个黄色SPORTS提示,和一个兰色OTHERS提示。当前时间的ALL CHANNEL指南,即NOW指南仍然显示于区46中。当观众按绿键64时,在区46中显示一个“ALL MOVIES”指南,如图11的方框109和图12的方框112所示;并且在区43中显示电影SORT按键的第二级屏幕-1,即小主题,如图12的方框114中所图示。当观众按兰键68时,在区46中显示NOW指南,如图14的方框130所示,并且在区43中显示第一级屏幕-2,即SORT按键,如图11的方框111和图14的方框132中所图示。
除了红色NOW提示以外,屏幕-1第二级电影SORT按键(图12)还包括一个绿色ACTION提示;一个黄色COMEDY提示;和一个兰色OTHER提示,用于接通屏幕-2系列的SORT按键,允许选择其他小类的电影。在ALL MOVIES指南中,显示全部小类中全部电影之和。当观众按绿键64时,在区46中显示一个ACTION MOVIES指南(未示出)。当观众按黄键66时,就在区46中显示一个COMEDY MOVIES指南(未示出)。在这些情况中的每一种情况下,在区43中只显示一个RED提示,因为电子指南处于分级结构的底层,并且观众可采用的唯一路线是回到NOW指南(图7)。当观众按兰键68时,如图12的方框120和图13的方框122所示,就在区46中仍然显示ALL MOVIES指南,并且在区43中显示第二级电影SORT按键的屏幕-2系列。如方框124所图示,用于第二电影级的SORT按键的屏幕-2系列,除了红色NOW提示之外,还包括一个绿色DRAMA提示,一个黄色HORROR提示,和一个兰色ALL OTHER提示。当观众按绿键64时,在区46中显示一个DRAMA MOVIES指南(未示出)。当观众按黄键66时,在区46中显示一个HORROR MOVIES指南(未示出)。当观众按兰键68时,在区46中显示一个ALL OTHER MOVIES指南(未示出)。在这些情况中的每一种情况下,在区43中只显示一个RED提示,因为电子指南处于分级结构的底层,并且观众能够采用的唯一路线是回到NOW指南(图7)。
在电影主题指南中采用提示多屏幕的理由在于,在区43中提供一些提示,以显示电影的全部小类。如果需要更多的电影小类,就能够显示第二级电影SORT按键的一个屏幕-3系列,而不用ALL OTHER电影提示。能够按需要扩大这种屏幕格式,以满足小类的需求。
如图11和14所示,当观众按第一级的SORT按键中的兰色提示按键68时,就在区43中显示第一级SORT按键的一个屏幕-2,并且仍然在区46中显示NOW指南。如方框132所图示,除了红色NOW提示之外,屏幕-2SORT按键还包括一个绿色CHILD提示,一个黄色SPECIAL提示,和一个兰色SERIES提示。当观众按绿键64时,就在区46中显示一个ALL CHILDREN指南(未示出),如方框134所示。当观众按黄键66时,就在区46显示一个ALL SPECIAL指南(未示出),如方框136所示。当观众按兰键68时,就在区46中显示一个ALL SERIES指南(未示出),如方框138所示。在这些情况中的每一种情况下,在区43中只显示一个RED提示,因为电子指南处于分级结构的底层,并且观众能够采用的唯一路线是回到NOW指南(图7)。
如图11的方块110所示,当观众按黄色提示按键66时,就在区46中显示一个ALL SPORTS指南。另一方面,可能存在一些类似于电影提示与指南的多级和屏幕的体育SORT按键。(也可对任何其他种类的SORT指南,提供这种分级结构。)
图15示出结合图7至14描述的提示与指南的分级结构,它从输入电子指南开始,方法是按压IR发送器上的按键52。当选择一个提示时,就在屏幕上把具体指南显示于区46中,用圆括号指定具体指南,例如,当选择CHOICE提示时,就显示NOW指南。在每一种情况下,指南都保持与分级结构中前一个指南相同。如果在圆括号中未指定指南,则在选择一个提示时显示的指南与提示的相同,例如,当选择CSPG提示时,显示THIS CHANNEL指南,而当选择ALL MOVIES提示时,显示ALLMOVIES指南。应当指出,一条折线150描述SORT分级结构的级别:第一级位于线150以上,和第二级位于线150以下。在分级结构的任何一级,观众都有操纵指南的两种选择:选择RED提示,以回到NOW指南;或者选择GREEN、YELLOW或BLUE提示之一,以移到下一个级。如上所述,能够扩充指南与提示的分级结构,以便通过把ALLSERIES提示变到一个OTHERS SCREEN-3提示来提供更多的主题,和通过把ALL OTHER MOVIES提示变到一个ALL MOVIES SCREEN-3提示等来提供更多的小主题。同样,能够扩充指南与提示的分级结构,以便用与如MOVIES所述的相同方式,提供用于其他主题,例如SPORTS的小主题。
本发明的一个特点是有助于观众在电子指南上定位,其作法是使彩色代码PIP窗口42和节目说明区44,同这些区中信息所涉及的节目的题目一致。尤其是,如图16所示,在NOW指南中(图2),PIP窗口42有一个边界152,它具有同区44背景和光标48相同的颜色,例如深兰色,光标48形成一个色带。此外,如图17所示,在NEXT指南中(图3),以及在THIS CHANNEL指南中(图4)和SORT指南中(图5),其区44中的说明涉及不同于PIP窗口42中显示的节目,因此区44的背景采用不同于边界152的颜色或色调。后面的指南全都具有一个标识区44中所述节目题目的光标(色带)48。例如,区44的背景和光标48是浅兰色的,以便通知观众用光标48高亮度化的题目标识了区44中的所述节目;而边界152和标题49信号,以便通知用标题49中的题目标识了PIP窗口42中的节目。
如果电视接收机没有PIP芯片,则可模拟所描述的屏幕格式,方法是重新安排提示与指南和节目说明信息,并且把这种信息覆盖到当前电视节目的实时活动图象上。与PIP格式相比,这会丢失部分的电视节目画面。然而,处于图象中心部分的画面剩余部分,以及它的伴音部分,一般可集合电视节目的大部分基本信息。在图18中,这样的模拟有一个截短的实时画面区160,取代PIP窗口42;一个信息提示区162,取代区43;一个节目说明区164,取代区44;和一个电子节目指南区166,取代区46。区164在屏幕区顶部以全宽度安置,且最好不包括节目题目。提示区位于屏幕区的底部,除此之外,象上述的PIP屏幕格式。指南区166位于区160与区162之间,且最好有一些少于PIP屏幕格式的节目单的行。区160中画面的尺寸相同于电子指南不操作时的画面,但画面的顶部和底部被区162、164和166切去。为了实施本发明的这个实施例,对图1所示的电视接收机作下述变更:
微处理器24被配置成,形成图18所示的屏幕,留下空白区160。
PIP芯片19被一个图像混合控制台所取代。
图19说明操纵上述电子指南的另一种方法。横坐标表示时间,和纵座标表示频道。如线段170所示,从NOW指南开始,观众一个个频道地移动光标,并且在PIP窗口中显示当前的节目。如线段172所示,观众选择THIS CHANNEL指南,并且一个个时隙地移动光标。按照NOW指南最后把该调谐器调成的频道上的节目,仍然显示于PIP窗口42中,并且在光标高亮度化时隙在所述频道上的节目说明,被显示于区44中。如线段174所示,观众选择NEXT指南,并且一个个频道地移动光标。按照NOW指南最后把调谐器调成的频道上的节目,仍然显示于PIP窗口42中,并且把在按照NEXT指南最后高亮度化的时隙,由光标高亮度化的通道上的节目说明,显示于区44中。如线段176所示,观众又选择THIS CHANNEL指南,并且一个个时隙地移动光标。按照NOW指南最后把调谐器调成的频道上的节目,仍然显示于PIP窗口42中;并且在当前用光标高亮度化的时隙,按照NEXT指南最后高亮度化的频道上的节目说明,被显示于区44中。如线段178所示,观众选择NEXT指南,并且一个个频道地移动光标。按照NOW指南最后把调谐器调成的频道上的节目,仍然显示于PIP窗口42中;并且在按照NEXT指南最后高亮度化的时隙,由光标高亮化的频道上的节目说明,被显示于区44中。如线段180所示,观众又选择THIS CHANNEL指南,并且一个个时隙地移动光标。按照NOW指南最后把调谐器调成的频道上的节目,仍然显示于PIP窗口42中;并且在当前由光标高亮度化的时隙,在按照NEXT指南最后高亮度化的频道上的节目说明,被显示于区44中。用这种方式,观众能够或者驶入未来时间,或者走向当前时间,并且跨越诸频道,以确定电视节目一览表。
总之,结合图19描述的技术,与其说是操纵一个两维(时间/频道)的网式指南,不如说是析出两维,即时间与频道,并且在观众选择的任何时间显示全部频道,或者在观众选择的任何频道上显示全部时间。
在NOW指南中特别有用的另一特点是通过观众命令请求暂时选择消除节目单。这样,在NOW指南中,当观众不关心一个所显示的节目时,观众能够把光标移动到不想看的节目,并且按一个在IR发送器上的专用DELETE按键(未示出),或者一个象ENTER之类的现有功能按键。微处理器被配置成,从NOW指南删去该节目单,并且使调谐器截断对载有不想看节目的频道设置。结果,观众能够快得多地检索关心的节目。当完成不想看的节目时,微处理器使调谐器疏通对该频道的设置,并且按照NOW指南显示该频道上的下一个节目。如果需要,则微处理器可配置成,按照THIS CHANNEL指南和正常电视模式保持调谐器阻塞有效。
上述特点的一个变动是把微处理器配置成,以一种不同于想看节目的方式,例如半灰度级方式,显示用光标标记的不想看节目。当观众把光标移到不想看节目且按DELETE键时,把微处理器配置成以半灰度级显示不想看的节目,以防光标高亮度化不想看的节目,并且阻止调谐器被调到载有不想看节目的频道。因为不想看的节目仍然可见,故在结束不想看节目之前,观众能够改变他或她的主意。这样,微处理器就被配置成,当执行一个特定光标控制序列时,使节目显示恢复正常,使光标可以高亮度化节目,并且疏通调谐器。例如,该序列可以是:把光标直接移到不想看节目或节目系列上面的节目单上;按右箭头键,使光标移动到不想看的节目或节目系列上;用光标高亮度化想恢复的不想看节目;然后按DELETE键。
如下面所详述,在节目一览表存储器22中,用周日、日时和频道编码节目单,以便在需要向视频处理器30提供节目一览表信息时,可用微处理器24去访问它们,以组成节目单和节目说明。微处理器24具有一个实时时钟(未示出),把它的时间同日时和周日代码比较,以选择TISPG模式的节目单。把光标位置寄存器32的功能存储区变换到视频处理器30的存储区,在此为背景区40上的显示而形成节目一览表,使光标位置寄存器32用于屏幕区,从而用于光标48高亮度化的特定节目。通过把寄存器32中光标位置同相应于视频处理器30所高亮度化区的频道进行比较,可导出所高亮度化节目的频道,并使它耦合于微处理器24。然后微处理器24把调谐器调到这个频道。
在TISPG操作中,微处理器24从存储器22调用适宜的节目单,并把它们传送到视频处理器30,在此组成区46的节目单和区44中高亮度化节目的节目说明。同时,微处理器24操作开关18,使调谐器11的输出端直接连接于PIP芯片19的一个输入端;并且把PIP芯片19切换成一种PIP模式,使来自调谐器11的输入显示于PIP窗口中,并使来自视频处理器30的节目一览表显示于背景中。微处理器24检测在输入TISPG模式时把调谐器调成的频道,并且把光标48初始地定位在这个频道上播放的节目单处。当观众移动光标控制键装置的上/下箭头时,就相应地重新设置调谐器11,并且通过微处理器24把新的节目一览表信息送到视频处理器30,以重新组成节目单,使光标48保持可见,并使节目说明保持是当前的。所描述的TISPG模式有利于观众检索频道。当观众找出他或她想看的视频节目时,观众离开TISPG模式。结果,微处理器24使PIP芯片19断开PIP模式,从而用全屏幕显示从调谐器11输入的视频节目。
如果观众想记录在TISPG模式中高亮度化的节目,观众就命令微处理器24接通用于记录的VCR 17。
如果观众想播放VCR 17上的盒式录像带,观众就命令微处理器24接通VCR,以便重放,并且操作开关18,以便通过PIP芯片19把VCR17的输出连接于电视接收机20。
图1所示的电视接收机还能够在图3、4或5的格式情况下使用,以扩充CSPG模式,显示电视剪辑形式的未来节目的预映。在装入VCR17的盒式录像带中存储电视剪辑。在节目一览表存储器22中,存储盒式录像带上的电视剪辑的地址,以它作为数据库的一部分。这些地址连接数据库中各个未来节目单,以便在数据库中指定一个节目单时,能够访问录像带上的电视剪辑。当观众按CSPG模式键时,除了如结合图4所述的操作之外,微处理器24把当前的节目题目置于标题49中,如图4所示。在光标48高亮度化当前节目的题目时,CSPG模式按如上所述操作。当观众通过操作观众箱入器28上的光标控制键装置,垂直地移动光标48,以高亮度化显示于区46中的未来节目题目时,就用微处理器24从节目一览表存储器22中检索所高亮度化节目单的电视剪辑地址,并把它传送到VCR 17。从VCR 17中的录像带中检索电视剪辑,并且通过开关18和PIP芯片19把它耦合到电视接收机20上,以显示于PIP窗口42中。用一种在共同待决申请系列号08/176,852中描述的方式,索引和访问盒式录像带上的电视剪辑;该专利于1993年12月30日提出申请,题为“改进盒式录像带放映机的操作”,在此完全编入它的公开部分,供参考。
扩充图2所示的TISPG模式还允许显示未来编排的电视剪辑。尤其是,在时间-频道网格式中,微处理器24还根据观众输入器28的光标按键装置来控制光标48;在本实施例中,该装置包括一个水平光标控制,例如一对右/左箭头。如上所述,用微处理器24从节目一览表存储器22中检索所高亮度化的未来节目单的地址,并把它传送到VCR 17,以访问显示于PIP窗口42的相应电视剪辑。
可在PIP窗口42中显示电视剪辑的另一实施例示于图5中。除了标题区43和节目说明区44之外,背景区40还具有节目一览表区46,其中按照主题,例如电影、体育、当前事件等显示节目单。区46包含一栏节目开始时间,一栏节目频道,和一栏节目题目。为了实施这个实施例,还用主题编码存于节目一览表存储器22中的数据库的节目单,使它们能够用熟知的方式,根据观众从一个屏幕上选项单中选择的主题,由微处理器24进行访问。如结合上述扩充TISPG和CSPG模式所述,当用光标48高亮度化未来节目单的题目时,就在PIP窗口42中显示相应的活动图象电视剪辑。如果需要,能够用一个视盘放像机代替VCR 17,以便向开关18提供电视剪辑,从而加快PIP窗口42中所示活动图象的访问时间。
在另一个实施例中,把节目相关信息(PRI)显示于背景区40中,而PRI涉及的实时电视节目则显示于PIP窗口42中。在载有PRI涉及的电视节目的频道的电视信号的垂直消隐时间(VBI),传送PRI,并同时传送这个电视节目。如图19所示,为了实施这个实施例,在调谐器11的输出端与微处理器24之间连接一个VBI译码器53,并且把一个PRI存储器57连接到微处理器24,如图20所示。用译码器53从电视信号的VBI中剥离PRI,并且用微处理器24把它PRI存入存储器57中。
在操作上,当观众按一个在观众输入器28上的PRI按键时,把调谐器11调到的频道的实时电视节目,显示于PIP窗口42中。除了标题区43和节目说明区44之外,背景区40具有一个在其中显示不同类型PRI的PRI区59。在图21中,实时电视节目是一个由Julia Child进行的烹饪表演,并且在区59中显示的PRI是一种在表演过程中所用的烹饪方法。在区44中显示关于该节目的其他信息。实时电视节目的另一个实例可以是Lexus汽车的一件商品,并且在区59中显示的PRI可以是Lexus的一种试车出售。在区44中可以显示在观众地区的当地Lexus销售商的名称和地址。
在图33中示出NOW指南的另一版本。这个版本除了在区43中的提示以外,其余都与图2所示的指南相同;这些提示是SORT NOW,SERVICE,CABLE和LATER。SORT NOW提示使观众可以按主题分类,从而可以通过“滤出”全部的不符合所选择主题的节目,减少所显示节目的数目。SERVICE提示使观众可以输入一种模式,在这种模式中,能够选择一些不同的信息项目,例如新闻、天气、体育成绩、或财务数据,供显示之用。CABLE提示使观众可以得到只有特殊电缆系统才有的信息;这类系统的实例有按观看次数计费系统,在有奖频道包上的特殊促销等。LATER提示使观众可以超前到图8所示的屏幕,并且继续按照结合图8至15所示情况去操纵。
在图34中,位于区43中的提示是NOW和SELECT。在NOW指南的区46中用光标48高亮度化的最新节目的实时图象,被显示于PIP窗口42中,这个节目的节目说明被显示于区44中,且这节目的题目和频道被显示于标题49中。为了取代节目单,把一个节目主题表显示于区46中。可用光标48高亮度化任何主题。
在图35中,把NOW提示和一个所选的主题显示于区43中。符合区43中标识的所选主题的当前节目表,被显示于区46中。象图2的NOW指南中一样,当观众在区46中一个个节目地移动光标48时,就把所高亮度化节目的实时图象显示于PIP窗口42中,并把节目说明显示于区44中。通过这样滤出符合其他非选择主题的节目,能够明显减小所显示当前节目表。这有利于在PIP窗口42中检索观众所关心节目的频道,因为观众只有较少的节目要用光标48去高亮度化。
参照图36至39,描述为操纵一个最佳实施例的电视节目指南而由观众采取的步骤;修改曾结合图6至14描述过的实施例,以编入图32至34的屏幕中。编制微处理器24的程序,以执行所述的操作。
图36相同于图7,但流程图是到图37,而不是到图8。这样,当观众通过按遥控发送器上的GUIDE/TV键52而输入电子指南时,就在屏幕上显示NOW指南。当观众按遥控发送器上的红键68时,就有4种提示选择呈现于观众面前。如图37方块400所示,用一种“ALLCHANNEL”指南显示这些提示选择。
方块401表示一个“ALL CHANNEL”指南,它除了区43之外,都与“NOW”指南相同。这是一个变换指南,因为它使观众可以输入在上面结合图33描述的其他模式。在这个“ALL CHANNEL”指南中,显示一个兰色的SORT NOW提示,一个绿色的SERVICE提示,一个黄色的CABLE提示,和一个红色的LATER提示。在这个指南中,观众不能够直接回到NOW指南。为了回到NOW指南,观众必须首先通过按压按键52来回到TV模式。
如图37中方框402和图38中方框404所示,当从这个ALLCHANNEL指南中按兰键62时,就显示主题表。在图38中,如方框405所示,显示一个兰色的NOW提示和一个红色的SELECT提示。当观众按兰键62时,就在区46中显示NOW指南,如方框406所图示。为了选择一个主题,观众就操作箭头按键58和60,以高亮度化所选择的主题;然后按红键68,如方框68所示,以选择该主题,如方框408所示。然后,在区46中显示用主题滤出的NOW指南,如方框410所示。为了取代一个单独的主题,可编制向处理器24的程序,以选择两个或多个主题;在这种情况下,可显示一些符合全部所选主题的当前节目。
图39说明一个结合图35至37所描述的提示与指南的分级结构。图15所示的分级结构被编入图39的分级结构中,如图39所示。
数据库操作
在最佳实施例中,该系统包括一个数据库,用于存储建立节目指南和执行请求,例如记录专用未来节目的请求,所需的全部信息。数据库被存储于节目一览表存储器22中,并且可由系统微处理器24直接访问。数据库被分成一个静态区300和一个动态区301。静态区包括几个预分配表,用于存储、定位和检索建立节目指南的数据。在静态区中的固定不变地址安置预分配表,有助于用微处理器快速地检索。动态区用于存储实际电视节目一览表数据。因为该系统总是包含当前天(今天)和下一天(明天)的数据,故动态区随着新数据的接收而更新。
图22描述节目一览表存储器数据库。静态区300包含调用字母映象,预先建立的时间表,频道映象,控制阵列,存储器映象,源映象,记录队列,和指向扩充主题显示表的指示字。下面会详细描述这些结构。动态区301用于存储电视节目一览表数据。这些数据采用显示信息包(SIP)形式和扩充主题显示表项目形式。下面还会较全面地描述这些结构。
数据传输
用远程装入包接收电视节目数据。通过VBI发送远程装入包,并以图20所述方式由微处理器24接收它。远程装入包包含电视节目一览表信息,以及使系统可以确定怎样把信息存入存储器中的路线选择数据。
图23说明一个远程装入包。该包从包头开始,包头包括包ID号302,用于把该包与其他的包区别开。包头还包括字节数303和字块数304。这些数值用来确定包的大小。
包头下面是显示信息包(SIP)头。在包中有一个用于每个显示信息包的显示信息包头。这个SIP头包含:指南号305,它是显示信息包中的数据的内部频道号;源ID 306,用于确定显示信息包中的数据源;和时隙307,用于指定显示信息包中的数据的日时,在SIP头的后面有一个显示信息包308。
系统微处理器根据接收情况,从远程装入包抽取一个显示信息包,并把它暂时存入节目一览表存储器中。显示信息包包含一个日期字段,用于确定数据是否用于当前天(今天)或下一天(明天)。
如果该包属于这两天的窗口,则该系统确定数据是否是现有数据的重复。显示信息包包含一个版本号,用于确定数据是否是新的,或它是否业已存在于存储器中。如果数据是新的,就存储它,并且把显示信息包的地址用适当的指示字置入预先建立的时间表中。下面更充分地说明预先建立的时间表。
如果显示信息包超出当前两天窗口(今天和明天)的范围,并且显示信息包包含一些有主题信息的节目,就把这些有主题信息的节目从显示信息包中抽出来,并把它置于适当的扩充主题显示表中。下面较充分地描述扩充主题显示表。如果显示信息包超出当前两天窗口的范围,并且不包含主题信息,或者如果显示信息包同一个业已存储的包重复,就删除整个显示信息包。
该系统使用一种存储器位映象,去始终监视:节目一览表存储器的哪些部分当前正在保持节目数据,和节目一览表存储器的哪些部分是自由的,可存储新的节目数据。存储器位映象把存储器分成32个字节块。每个块都用存储器位映象中的一个位来表示。
在图24中描述存储器位映象。在映象310中的每个位都表示存储器的一个32字节块。在位单元311中的“1”指示:节目数据存于这个块中。在位单元312中的“0”指示:该块是空闲的。当新的数据到达该系统时,微处理器24就搜索存储器位映象,以探测足够数量的要在其中存储数据的相邻空闲单元。当找到一些单元时,微处理器24就存储数据,然后把存储器位映象中的这些数字从“0”变到“1”,以指示这些存储单元被占据。
例如,参照图24,如果接收的数据需要10个存储块,则该系统扫描存储器映象,并且在用第3行中位0-7和第4行中位0-1表示的空格中存储数据。然后在存储器位映象中把这些位置“1”。
该系统还定期调配存储器,使空闲空格成组邻接。例如,参照图24,开始于0行位2表示的块和结束于1行位1表示的块的数据,要滑移到0行位3表示的块中。这可消除第0行中的“0”间隙。在整个存储器映象中重复这一过程,以便在存储器未端把全部空闲空格都聚集在一起。
该系统还包含一些程序,以便在只有有限的存储空间可用时,减少要存储的新数据的数量。通过扫描存储器位映象,该系统能够确定,存储器是否正在变满。当这种情况出现时,该系统可以删除一些象节目说明之类的新数据,使能够存于有效存储器中的各个显示的数目达到最多。
数据结构
节目一览表存储器中的数据被存储于数据结构中,数据结构使系统可以解释数据。一些数据结构是固定长度的,并且存于静动态区300中。这些数据结构以固定的地址保存,从而可用微处理器访问,而不需要进一步的存储计算。其他一些数据结构是可变长度的,并且存于动态区301中。固定数据结构包括:预先建立的时间表,频道映象,控制阵列,调用字母映象,存储映象,源映象和记录队列。可变数据结构包括:显示信息包和扩充主题显示表。
预先建立的时间表用于为系统中每个频道寻找电视节目信息。预先建立的时间表只涉及那种要在当前天(今天)或下一天(明天)播放的节目信息。预先建立的时间表通过使用指示字来引用数据指示字是一些包含动态区中所需数据项地址的数据段。
图25说明预先建立的时间表。预先建立的时间表包含一组12个指示字313,用于系统中的各个频道。每个指示字都对应于一个显示信息包,该包含有用于一个4小时电视节目块的数据。例如,在图25中,指示字E1对应于从下午4点到下午8点在频道1上的节目数据。12个指示字表示当前天的24小时节目信息和下一天的24小时节目信息的总和。
指示字A2到L2用于表示与系统中频道2有关的节目数据。每个指示字都包括一个含有实际电视节目数据的可变长度的显示信息包的地址。当需要专用数据时,该系统首先看一看预先建立的时间表,以获得指示字;然后使用在这个位置找到的地址,去确定该数据实际存于何处。例如,如果需要把系统中频道2的数据用于下午8点与午夜12点之间的一个电视节目,该系统就使用指示字F2中的地址,去确定含有该数据的显示信息包的位置。
显示信息包是含有实际电视节目一览表数据的可变长度的数据结构。每个显示信息包都包含用于专用频道的电视节目的4小时块。显示信息包的长度是可变的,因为在各个4小时块中显示的数目将取决于各个显示的持续时间。
图26描述一个显示信息包。一个显示信息包包含下述内容:存储量,用于确定有多大的空间用于存储该显示信息包,从而确定在不再需要显示信息包以后,有多大的空间空出来;控制日期,用于确定是否专用显示信息包中的数据是用于当前天、下一天、或超出当前这两天窗口的范围;和版本号,用于指定节目数据的专用版本。
在这三个区段之后是在4小时时间块范围内的每个显示的专用数据。对于一个用块314表示的给定显示来说,在显示信息包中存在下述的区段:多显示标志区段,用于确定是否这一显示是该包内的最后一个显示,或者是否有其他显示要接着处理;开始时间区段,偏移4小时块的起始时间,把这项偏移加到4小时块的时间上,以确定显示的起始时间;持续时间区段,指定具体显示的播放时间,如果选择该显示,供记录之用,就使用这个区段,以确定记录的长度;主题区段,包含关于显示类型的信息,例如,显示可以是体育事件、新闻节目、或电影;CC区段,确定该显示是否接通字幕;立体声区段,确定该显示是否以立体声播放;加入区段,是一个留待扩充用的区段,当关于显示的信息成为技术标准时,这个区段将包括更多的这种信息。
在这些区段后面的区段有:节目题目;主要说明,即节目的简短说明;次要说明,即节目的较长说明;和VCR+PLUSCODE。每个这类项目都用两个区段表示:一个含有具体项目的长度,例如题目长度;另一个含有项目本身,例如题目。
在这些信息的后面有一个显示结束区段。显示结束区段用于指示这个特定的显示信息被完成。一个显示信息包可包含一个或多个显示的信息,取决于要在4小时块内播放多少个显示。用315和316表示多显示的存在。
一个显示信息包被构造成,提供一些用于存储数据的独特特征。对于超出可在一个字节内存储的最大值的数值,能够扩充题目长度、主要说明长度、次要说明长度和VCR+PLUSCODE长度区段。例如,参照图27,如果次要说明长度等于一个数,而该数又大于可在一个字节内存储的最大数,就把长度字节调节到这个最大值。然后该系统假定,随后的字节也表示长度,并附加2个值,以确定次要说明的总长度。用这种方式,一个显示信息包能够动态地分配空间,以容纳较长的说明或较长的题目。
显示结束区段允许在不用系统当前版本阅读的显示信息包中加入数据。又如图27所示,在VCR+PLUSCODE区段的后面,有两个未指定数据的区段。这些数据可用系统未来版本阅读,但当前不处理。当处理显示信息包数据时,该系统期待在VCR+PLUSCODE区段后面,有一个显示结束区段。如果未发现显示结束区段,则该系统删除该数据,并且检查下一个字节。该系统要到发现显示结束区段时,才开始处理新显示的数据。这一特征使该系统能够访问那些与一个潜在未来版本相同的数据,而该版本可以处理那些超出题目、说明和VCR+PLUSCODE范围的数据。例如,一个未来版本也可能包括一个具体显示中的演员表。把这一信息添加到VCR+PLUSCODE以后的远程装入数据中。不包括显示新数据的特征的较老版本会删除它,而不会引起远程装入过程的差错。
对于那些包含一个主题(电影、体育事件等)但其起始时间超出两天窗口(即将在明天以后播放的显示)范围的显示,把其电视节目信息存于一个扩充主题显示表中。扩充主题显示表是一种电视显示连系表。该表中每个显示都包含用于一个单独节目的数据。对每个不同主题范畴(体育、电影、儿童节目、特殊节目、信息),该系统都包含一个扩充主题显示表。
图28描述扩充主题显示表。在静态区300中存储表318内的第一个显示的地址317。显示318被存储于动态区301中,并且包含一个指向将播放的下一个显示的指示字319。对表中全部显示都重复这一模式。在最后一个显示的指示字区段包含值“NULL”,以指示表中没有其他的显示。因为表中每个显示都连接下一个显示,故通过确定表中第一个显示的地址,可以横过整个表。
除了为每个显示存储频道ID以外,每个显示都包含与显示信息包314相同的区段格式。适用于显示信息包314的一些约定,允许扩充长度区段和在显示结束标志的前面添加数据,它们也可用于扩充主题显示表。
节目一览表存储器还包含一个位于静态存储区300中的频道映象。频道映象把电视节目信息的频道号码与内部指南频道联系起来。例如,在图29中,指定频道7为内部频道1,和指定频道11为内部频道3。参照频道映象,以便在建立一个节目指南显示时识别频道号。还用源频道号去根据操作者的选择来调到一个专用频道。
节目一览表存储器还包含一个位于静态存储区300中的预分配控制阵列。由跟踪频道的系统使用控制阵列,而这些频道是已由操作者为显示而禁止的。图30描述控制阵列。对每个频道,都有一个显示区段320;如果要显示该频道,就把它调到“1”,而如果禁止该频道,就把它调到“0”。参照图30,在节目指南中将显示频道0、1、3和4,而禁止频道2。每个频道还有一个用于附加的“加入”信息的区段。这个区段允许在象本源锁定设备之类的系统的未来版本中,添加其他的操作者控制功能。
节目一览表存储器还包含一个位于静态存储区300中的调用字母映象,调用字母映象把对应于源频道的调用字母同内部指南频道联系起来。例如,在图31中,调用字母KABC同内部频道0相联系,而WWOR同内部频道1相联系。参考调用字母映象,以便在建立一个节目指南显示时识别源频道调用字母。
节目一览表存储器还包含一个位于静态存储区300中的源映象。源映象把电视台的特定源同内部指南号联系起来。一些电视台可能具有相同的源。例如,源“Home Box Office”可以涉及HBO、HBO2、HBO3等。在一个替代实施例中,可根据源信息来配置该系统,以改组节目指南频道。例如,可以引导该系统,以便在节目指南的开头安置来回源“Home Box Office”的全部频道。
在记录队列中存储用于记录未来节目的操作者请求。记录队列是一个位于静态区300中的固定长度的表(20个项目)。图32描述记录队列。
记录队列中每个显示都包含一个表示显示将播放的频道的数值和一个表示显示开始时间的数值。记录队列的结构可使诸节目按时间序列顺序排列。即,表中第一项会早于任何其他项播放,依此类推。这使该系统可以容易地发现要记录的下一个节目。
数据库处理
通过下面的系统操作实例,说明数据结构与系统之间的相互关系。
A.操作者用观众输入器28请求一个时间特定节目指南(TISPG),当前时间是下午7点。
当用户请求一个TISPG,以了解关于当前正在播放的电视显示的信息时,系统首先从微处理器时钟阅读当前的时间(7p.m.)。然后系统确定对应于图25的预先建立时间表中当前时间的指示字。因为当前时间是7p.m.故系统会对每个频道注意第5个指示字(这个指示字对应于从4p.m.到8p.m.的数据):频道1,E1;频道2,E2;频道3,E3;……频道n,En.
对每个指示字,系统都访问图26的相关显示信息包。系统把4小时块的起始时间(4p.m.)加到在显示信息包中的每个显示中的时间偏移上,以确定当前正在这个频道上播放的显示。然后从显示信息包中抽取用于显示的信息。所抽取的信息包括题目,主要说明,次要说明和VCR+PLUSCODE。
每个内部频道号还用于检索频道映象,如图29所示。尤其是,频道号用来抽出特定源频道号,以便在指南中显示:频道1,7;频道2,6;频道3,11;频道n,172。频道号还用于检索调用字母映象,如图31所示。尤其是,频道号用来抽出电视台标志调用字母,以便在指南中显示:频道1,KABC;频道2,WWOR;…频道n、KTVR。来自显示信息包、频道映象和调用字母映象的全部信息,用于建立格式化的正文行,以便在指南中显示。
B.操作者用观众输入器28请求一个频道特定节目单指南(CSPG),当前正在观看的频道是频道6,当前时间是3p.m.
当用户请求一个CSPG,以了解关于正在播放,或者将在特定时间(3p.m.)在特定频道(频道6)播放的电视显示的信息时,该系统就通过阅读一个系统变量而确定对应于所显示频道的内部频道。对这一实例,内部频道是频道2。然后,系统从微处理器时钟读出当前时间(3p.m.)。系统确定对应于在图25所示的预先建立时间表中所选内部通道的当前时间的指示字。因为当前时间是3p.m.并且所选内部频道是频道2,故系统会注意第二组指示字中的第四个指示字(这个指示字对应于从中午12点到下午4点的数据)。这个指示字是D2,如图25所示。
其后,系统为指示字D2而访问相关的显示信息包,如图26所示,系统把4小时块的起始时间(中午12点)加到在显示信息包中的每个显示中的时间偏移上,以确定当前正在播放的显示。然后,从显示信息包中抽取用于显示的信息。所抽取的信息包括题目,主要说明,次要说明和VCR+PLUSCODE。对在所选显示以后发生的由D2指向的显示信息包中的全部显示,系统抽取其数据。然后,对由指示字E2-L2指向的显示信息包中的全部显示,抽取其信息。
内部频道号还用于检索频道映象,如图29所示。尤其是,频道号用来抽出专用频道ID,频道6,以便在指南中显示。频道号还用于检索调用字母映象,如图31所示。尤其是,频道号用于抽出电视台标志调用字母WWOR,以便在指南中显示。来自显示信息包、频道映象和调用字母映象的全部信息,用于建立格式化的正文行,以便在指南中显示。
C.操作者用观众输入器28请求一个主题专用节目指南(THSPG),所选主题是“MOVIE”,当前时间是10:30a.m.
当用户请求一个THSPG,以了解关于具有正在播放或将要播放的专用主题(MOVIE)的电视显示的信息时,系统首先从微处理器时钟读出当前时间(10:30a.m.)。然后,系统确定对应于预先建立时间表中当前时间的指示字,如图25所示。因为当前时间是10:30a.m.故系统会对每个频道注意第三个指示字(这个指示字对应于从8a.m.到中午12点的数据):频道,C1;频道2,C2;频道3,C3;…频道n,Cn。
对每个指示字,系统都访问图26的相关显示包。系统把4小时块的起始时间(8a.m.)加到在显示信息包中的每个显示中的时间偏移上,以确定当前正在这个频道上播放的显示。在确定显示以后,系统就把用于这个显示的主题信息同所选主题MOVIE进行比较。如果显示是一个电影,就从显示信息包中抽取用于显示的信息。所抽取的信息包括:题目,主要说明,次要说明和VCR+PLUSCODE。
其后,系统把当前时间增加5分钟(10:35),并且重复上述过程。又增加时钟时间5分钟,并且重复该过程,直至时钟时间处在4小时块的末端,即中午12点为止。然后,系统访问全部其余的指示字,D1-Dn,E1-En,…L1-Ln,并且抽取用于全部含有主题MOVIE的显示的信息。
在对含有主题MOVIE的在两天窗口(今天和明天)范围内发生的全部显示抽取了数据以后,系统开始从图28所示的“MOVIE”扩充主题显示表中抽取数据。系统具有“MOVIE”扩充主题显示表中第一项的地址,因为它存储于静态区300中。抽取在“MOVIE”扩充主题显示表中用于全部显示的数据。
在一个该系统的替代实施例中,系统用户应能截断某些频道。截断一个频道会禁止该频道显示于系统上,从而该频道不会是TISPG、CSPG或THSPG的一部分。通过使用图30所示的控制阵列,实现这一特征。
当用户选择一个不显示的频道时,就把控制阵列中的显示标志调到“0”。每当系统用户请求一个节目指南显示时,系统就首先检查控制阵列,然后进行预先建立时间表上的处理。如果把一个专用频道的控制阵列调到“0”,则对这个频道不进行其他的处理,并且继续进行下一个频道的处理。如果用户要重新选择这个频道,以便在其后的处理中显示,则系统在下次建立一个节目指南时,会作出变更。
控制阵列还可用于禁止存储所选频道的数据。例如,在一个系统的替代实施例中,系统会首先检查控制阵列,然后存储专用频道的数据。如果专用频道的控制阵列含有一个“0”,就不存储对应于这个频道的数据。应当指出,可以禁止一个频道,以便进行上述显示,而不一定要禁止数据的存储。
在另一个替代实施例中,用户具有一个在TISPG与CSPG之间触发(toggling)的可选项,如图19所示。在这些显示之间的触发,使用户可以为一个未来的由用户选择的时间,建立一个全部节目信息的指南。同这个可选项有关的数据库处理类似于对TISPG和CSPG使用的处理,但也有不同:用于寻找每个节目的时间是在CSPG中的用户指定时间,而不是当前时间,并且频道是在TISPG中的指定频道。
记录
当用户选择一个用于记录的节目时,该系统就存储记录队列中所选节目的内部频道号和节目开始时间。如图32所示。通过把显示信息包中所含的偏移加到数据的相关4小时块的开始时间上,计算节目的开始时间。
每当添加一个新的项目时,都对记录队列排时间顺序。这种排序有利于定期查询队列的第一个显示中的开始时间,以确定要执行的下一个记录命令。该系统知道队列的地址,因为它在静态区300中。当记录一个显示时,把队列中下一个显示移到队列的开始处。
当操作者请求一个记录队列的显示时,系统就阅读记录队列中第一项的内部频道号和开始时间。这种数据用于查找指向预先建立时间表中相应SIP包的指示字(图25)。指示字用于抽取显示的题目。内部频道号还用于抽取对应于该显示的源频道和调用字母。然后,系统用这种信息建立一个代表要记录的显示的正文行。对记录队列中每个显示,重复这一过程。
我们仅认为所述本发明的实施例是最佳的和说明发明概念;本发明的范围不限于这些实施例。熟悉本专业的技术人员可以想出各种众多的其他布置,而不脱离本发明的精神与范围。例如,能够使用所公开的电子指南特征,包括用于操纵该指南的技术,而不用显示当前电视节目的实时图象。

Claims (34)

1.一种系统,包括:
视频显示器;
视频信号调谐器;
存储用于多个电视节目的节目列表的存储器;
用于在视频显示器的节目一览表区域显示多个节目标识符的装置,每个节目标识符与其中一个节目列表相关;
用于显示对节目一览表区域中的第一节目标识符进行突出显示的光标的装置;
用于在视频显示器的窗口区域中显示视频信号调谐器输出的图像的几乎全部的装置;
用于在视频显示器的节目说明区域中显示来自与由光标在节目一览表区域中突出显示的第一节目标识符相关的节目列表的额外信息,其中所述额外信息包括不在第一节目标识符中的信息,并且其中同时显示多个节目标识符、视频信号调谐器输出的图象和额外信息。
2.根据权利要求1所述的系统,其中节目标识符包括至少一节目标题。
3.根据权利要求1或2所述的系统,还包括:
用户输入装置;
用于基于接收自用户输入装置的输入,在节目一览表区域中移动光标,以突出显示第二节目标识符并自动将节目说明区域中的额外信息改变为来自由第二节目标识符识别的节目列表的额外信息的装置。
4.根据权利要求1所述的系统,还包括:
用户输入装置;
用于控制视频信号调谐器,以根据接收自用户输入装置的输入,响应于节目一览表区域中的光标移动自动调谐到与在节目一览表区域中由光标突出显示的节目标识符对应的节目的频道的装置。
5.根据权利要求1所述的系统,还包括:
用于控制视频信号调谐器,在将节目一览表区域中的光标从突出显示第一节目标识符移动到突出显示第二节目标识符时不改变调谐的装置。
6.根据权利要求1所述的系统,其中用于显示额外信息的装置显示节目说明区域,使得节目说明区域不显著重叠窗口区域。
7.根据权利要求1所述的系统,其中用于显示额外信息的装置显示节目说明区域,使得节目说明区域不显著重叠一览表区域。
8.根据权利要求1所述的系统,其中视频信号调谐器输出的图像的全部显示在视频显示器的窗口区域中。
9.一种系统,包括:
视频显示器;
视频信号调谐器;
存储用于多个电视节目的节目列表的存储器;
用于在视频显示器的节目一览表区域显示多个节目标识符的装置,每个节目标识符与其中一个节目列表相关;
用于显示对节目一览表区域中的第一节目标识符进行突出显示的光标的装置;
用于在视频显示器的视频区域中显示视频信号调谐器输出的图像的装置;
用于在视频显示器的节目说明区域中显示来自与由光标在节目一览表区域中突出显示的第一节目标识符相关的节目列表的额外信息,其中所述额外信息包括不在第一节目标识符中的信息,其中节目说明区域被安排使得节目说明区域不显著重叠节目一览表区域,并且其中同时显示多个节目标识符、视频信号调谐器输出的图象和额外信息。
10.根据权利要求9所述的系统,其中节目标识符包括至少一节目标题。
11.根据权利要求9或10所述的系统,还包括:
用户输入装置;
用于基于接收自用户输入装置的输入,在节目一览表区域中移动光标,以突出显示第二节目标识符并自动将节目说明区域中的额外信息改变为来自由第二节目标识符识别的节目列表的额外信息的装置。
12.根据权利要求9所述的系统,还包括:
用户输入装置;
用于控制视频信号调谐器,以在从用户输入接收到输入装置时,响应于节目一览表区域中的光标移动自动将视频信号调谐器调谐到与在节目一览表区域中由光标突出显示的节目标识符对应的节目的频道的装置。
13.根据权利要求9所述的系统,还包括:
用于控制视频信号调谐器,在将节目一览表区域中的光标从突出显示第一节目标识符移动到突出显示第二节目标识符时不改变调谐的装置。
14.根据权利要求9所述的系统,其中用于显示额外信息的装置显示节目说明区域,使得节目说明区域不显著重叠视频区域。
15.根据权利要求9所述的系统,其中用于显示多个节目标识符的装置显示节目一览表区域,使得节目一览表区域不显著重叠视频区域。
16.根据权利要求9所述的系统,其中节目说明区域被安排使得节目说明区域根本不重叠节目一览表区域。
17.根据权利要求9所述的系统,其中视频信号调谐器输出的图像的几乎全部显示在视频显示器的窗口区域中。
18.使用视频显示器、视频信号调谐器和存储器的方法,包括:
在存储器中存储用于多个电视节目的节目列表;
在视频显示器的节目一览表区域显示多个节目标识符,每个节目标识符与其中一个节目列表相关;
显示对节目一览表区域中的第一节目标识符进行突出显示的光标;
在视频显示器的窗口区域中显示视频信号调谐器输出的图像的几乎全部,窗口区域被安排使得节目一览表区域不显著重叠窗口区域;
在视频显示器的节目说明区域中显示来自与由光标在节目一览表区域中突出显示的第一节目标识符相关的节目列表的额外信息,其中所述额外信息包括不在第一节目标识符中的信息,并且其中同时显示多个节目标识符、视频信号调谐器输出的图象和额外信息。
19.根据权利要求18所述的方法,其中节目标识符包括至少一节目标题。
20.根据权利要求18或19所述的方法,还包括:
基于接收自用户输入装置的输入,在节目一览表区域中移动光标,以突出显示第二节目标识符并自动将节目说明区域中的额外信息改变为来自由第二节目标识符识别的节目列表的额外信息。
21.根据权利要求18所述的方法,还包括:
控制视频信号调谐器,以根据接收自用户输入装置的输入,响应于节目一览表区域中的光标移动自动调谐到与在节目一览表区域中由光标突出显示的节目标识符对应的节目的频道。
22.根据权利要求18所述的方法,还包括:
控制视频信号调谐器,在将节目一览表区域中的光标从突出显示第一节目标识符移动到突出显示第二节目标识符时不改变调谐。
23.根据权利要求18所述的方法,其中显示额外信息包括显示节目说明区域,使得节目说明区域不显著重叠窗口区域。
24.根据权利要求18所述的方法,其中显示额外信息包括显示节目说明区域,使得节目说明区域不显著重叠节目一览表区域。
25.根据权利要求18所述的方法,其中显示视频信号调谐器输出的图像的几乎全部包括显示视频信号调谐器输出的图像的全部。
26.使用视频显示器、视频信号调谐器和存储器的方法,包括:
在存储器中存储用于多个电视节目的节目列表;
在视频显示器的节目一览表区域显示多个节目标识符,每个节目标识符与其中一个节目列表相关;
显示对节目一览表区域中的第一节目标识符进行突出显示的光标;
在视频显示器的视频区域中显示视频信号调谐器输出的图像;
在视频显示器的节目说明区域中显示来自与由光标在节目一览表区域中突出显示的第一节目标识符相关的节目列表的额外信息,其中所述额外信息包括不在第一节目标识符中的信息,其中节目说明区域被安排使得说明区域不显著重叠节目一览表区域,并且其中同时显示多个节目标识符、视频信号调谐器输出的图象和额外信息。
27.根据权利要求26所述的方法,其中节目标识符包括至少一节目标题。
28.根据权利要求26或27所述的方法,还包括:
基于接收自用户输入装置的输入,在节目一览表区域中移动光标,以突出显示第二节目标识符并自动将节目说明区域中的额外信息改变为来自由第二节目标识符识别的节目列表的额外信息。
29.根据权利要求26所述的方法,还包括:
控制视频信号调谐器,以根据接收自用户输入的输入装置,响应于节目一览表区域中的光标移动自动将视频信号调谐器调谐到与在节目一览表区域中由光标突出显示的节目标识符对应的节目的频道。
30.根据权利要求26所述的方法,还包括:
控制视频信号调谐器,在将节目一览表区域中的光标从突出显示第一节目标识符移动到突出显示第二节目标识符时不改变调谐。
31.根据权利要求26所述的方法,其中显示额外信息包括显示节目说明区域,使得节目说明区域不显著重叠视频区域。
32.根据权利要求26所述的方法,其中显示多个节目标识符包括显示节目一览表区域,使得节目一览表区域不显著重叠视频区域。
33.根据权利要求26所述的方法,其中显示视频信号调谐器输出的图像包括显示视频信号调谐器输出的图像的几乎全部。
34.根据权利要求26所述的方法,其中显示节目说明区域使得节目说明区域不显著重叠节目一览表区域包括显示节目说明区域使得节目说明区域根本不重叠节目一览表区域。
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CA2761985A1 (en) 1996-03-07
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US6239794B1 (en) 2001-05-29
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