CN1682533A - 视频记录器装置以及操作视频记录器装置的方法 - Google Patents

视频记录器装置以及操作视频记录器装置的方法 Download PDF

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Publication number
CN1682533A
CN1682533A CNA038223473A CN03822347A CN1682533A CN 1682533 A CN1682533 A CN 1682533A CN A038223473 A CNA038223473 A CN A038223473A CN 03822347 A CN03822347 A CN 03822347A CN 1682533 A CN1682533 A CN 1682533A
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special content
content clip
video recorder
video
clip
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CN100466708C (zh
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G·W·R·莱布兰德特
F·斯尼德
G·E·梅肯坎普
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Abstract

本发明涉及一种视频记录器装置,它具有一个接收具有特殊内容剪辑(111、117、123、127、129、133、135、139、149)和节目(107、113、119、125、131、137、138、141、145)的混合内容的混合内容视频频道(101、103、105)的接收机(211)。一个用于检测所述特殊内容剪辑的检测处理器(213)和一个提取控制器(215)提取所述剪辑并且把它们存储在存储器(217)中。一个分组控制器(219)对于所述特殊内容剪辑进行分组以及一个重放视频发生器(225)重放所述特殊内容剪辑组。用这种方法,用户被呈现以从多个混合内容频道提取的特殊内容剪辑的连续序列,借此,诸如预览或预告片的特殊内容剪辑的虚拟频道被产生。

Description

视频记录器装置以及操作视频记录器装置的方法
本发明涉及一种视频记录装置和操作该视频记录器装置的方法,并且特别是涉及一种数字个人视频记录装置。
在大多数今天的电视广播中,电视节目不仅通过广告被分隔,而且还被电视台识别标志剪辑、公共信息广播和未来节目的预览分隔。
近年来,预览或预告片的使用已经大大增加,并且现在这不仅构成了私人商业电视台或电缆网络广播而且构成了公共投资频道广播的重要部分。
现在,用预览或预告片预告是宣布未来节目或新的电视节目系列的主要方法之一。其它方法包括传统印刷的电视节目清单、电子节目指南以及广告牌预告。然而,预览对于广播机构以及观众有特殊的好处。对于广播机构,预览的好处是完全在他们的控制下、便宜、通过和所述节目相同的媒体进行通信并且因此被固有地针对希望的目标群。预览还具有一种促进作用,它能够大大增加特殊节目的观众数量。对于观众,预览的好处是容易接入、以及提供例如比印刷的节目清单更多的信息因此更能代表实际的节目。
使用预览的广播电缆电视系统的一个例子在US 5,945,987中被给出。US 5,945,987描述了一种具有视频要求应用的交互网络系统,它允许观众选择用于把各种视频内容节目(例如,电影、游戏、电视表演等等)分成易于观看的可管理组的标准。一旦所述节目已经被分组,则所述节目的预告片就被显示。所述预告片和节目被存储在一个在一个中央头端器上的媒体服务器数据库的中心。所述头端器传输预告片到多个用户。如果多个用户之一在观看预告片期间需要一个节目,则所述视频点播应用程序允许用户在不返回到菜单或其它指令屏幕的情况下,立即根据正被显示的预告片来租用所述节目。
然而,预览在观众没有任何控制的情况下典型地被嵌入在广播中。用户因此很容易错过一个预览或者当他对预览不感兴趣时可能不得不观看它们。简单地从广播中删除预览或者省略它们还将导致用户错过关于被包括在所述预览中的未来节目的信息。
因此,本发明寻求一种用于处理特殊内容剪辑以及优选地来自混合内容视频频道的预览的改进的系统。
因此,提供了一种视频记录器装置,它包括:
一个用于接收具有特殊内容剪辑和节目的混合内容的多个混合内容视频频道的至少之一的接收机;用于存储从所述被接收的频道选择的视频信号的存储器,用于检测在所述多个频道的至少之一中特殊内容剪辑的存在的检测处理器;一个响应于所述检测处理器的检测而用于从所述多个频道的至少之一提取特殊内容剪辑并且在所述存储器中存储所述特殊内容剪辑的提取控制器;
一个用于通过对于被所述提取控制器提取和存储的多个特殊内容剪辑进行分组来建立一组特殊内容剪辑的分组控制器;以及一个用于重放所述一组特殊内容剪辑从而使从多个混合内容频道提取的特殊内容剪辑连续序列被呈现给用户的重放视频发生器。
因此,视频记录器装置的用户被提供以观看被嵌入在混合内容视频频道中的特殊内容剪辑的增加的灵活性和控制。在用户不必特别启动所述记录的情况下,所述特殊内容剪辑因此不仅仅能被从被记录节目的内容过滤,而且它们还能在任何给定的时间被记录和观看。而且,因为特殊的内容剪辑常常未被确定时间,所以一种特殊内容剪辑的自动扫描、选择和记录为用户观看所述特殊内容剪辑创造条件,而不必在延长的时间段内观看所述电视频道。另外,一个新的虚拟频道能够根据所述特殊内容剪辑被建立,它可以为观众提供额外的娱乐。
根据本发明的一个实施方案,所述视频记录器装置是一种个人视频记录器。因此,提供了一种个人视频记录器(PVR),它为终端用户提供额外的灵活性和控制。
根据本发明的另一个实施方案,所述重放视频发生器可操作来只产生一个重放视频信号,并且所述视频记录器装置包括一个可操作来接收一个用户输入的用户输入接口,并且所述视频记录器响应于这个用户输入来可操作地重放所述一组特殊内容剪辑或者节目。因此,特别地对于例如个人视频记录器,所述视频记录器装置的复杂性和成本被维持低水平,同时仍能够提供观看特殊内容剪辑的控制和灵活性。
根据本发明的另一个实施方案,所述视频记录器响应于在所述第一个特殊内容剪辑重放期间检测一个启动的用户输入,把第一个特殊内容剪辑的重放改变成相应节目的重放。因此,在想要的节目的观看和选择中,向用户提供操作便利和/或灵活性,这是因为在相应的特殊内容剪辑显示期间,能够简单地通过一个启动,例如,按按钮来选择一个节目。
根据本发明的一个不同的实施方案,所述视频记录器装置还包括一个控制器,它响应于一个特殊内容剪辑和所述特殊内容剪辑和至少一个有关的节目之间的联系的用户输入选择,可操作地来安排至少一个视频记录。因此,在想要的节目的记录和选择中,向用户提供操作便利和/或灵活性,这是因为在相应的特殊内容剪辑显示期间,能够简单地通过一个启动,例如,按按钮来选择一个节目。这便于一种很简单的视频记录器的计时器的设置,传统上,它是一种多数用户认为很困难的任务。
根据本发明的另一个实施方案,所述特殊内容剪辑是有关节目的预览,并且所述至少一个视频记录是有关节目的至少一个视频记录。因此,向用户提供了一种非常简单的方法以用于设置所述视频记录器来记录一个节目。
根据本发明的另一个实施方案,有关的节目包括在所述混合内容视频频道上单独被传输的多个子节目,并且所述至少一个视频记录是所述有关节目的每个子节目的记录。因此,提供了一种很简单的设置多个节目的记录的方法,而不需要用于所述各节目的单独设置。举一个特殊的例子,用户能够简单地通过在电视连续剧预览期间执行一个启动而使所述记录器开始记录所述电视连续剧的全部节目。
根据本发明的一个实施方案,所述特殊内容剪辑是一个预览剪辑。因此,在所述特殊内容剪辑和特定的节目之间的紧密联系被提供,从而向用户提供一种视频记录器装置,其中被嵌入在所述视频频道中并且在一段持续时间中被传输的全部预览可以作为一个虚拟频道被观看。不仅仅很多用户将发现这种观看本身有趣,而且另外它提供了一种很吸引人的选择未来节目记录的方法。
根据本发明的另一个实施方案,所述提取控制器还可操作地来确定一个特殊的内容剪辑是否已经被存储在所述存储器中,并且如果这样的话则不存储所述特殊内容剪辑。因此,相同的特殊内容剪辑的重复广播不需要使用额外的存储器。另外,用户不被强迫重复观看同样的特殊内容剪辑,尽管它们被重复广播。
根据本发明的一个实施方案,所述提取控制器可操作地来存储每个被存储的特殊内容剪辑的标识,所述标识被从每个被存储的视频内容剪辑的视频内容导出,并且通过所述特殊内容剪辑的标识和所述被存储的标识的比较来检测是否所述特殊内容剪辑已经被存储。这提供了一种确定是否所述特殊内容剪辑已经被预先存储的简单、快速和有效存储的方法。
根据本发明的另一个实施方案,所述检测处理器可操作来检测一个特殊内容剪辑正从包括在所述视频传输中的信息数据被接收。这提供了一种复杂性低、但是却能可靠和快速地确定是否一个特殊内容剪辑正在被传输的方法。
根据本发明的另一个实施方案,所述检测处理器可操作地来检测一个特殊内容剪辑正从所述被接收的视频信号的内容分析被接收。因此,这提供了在不需要存在指示一个特殊内容剪辑正被传输的专用信息的情况下的特殊内容剪辑的检测。
根据本发明的一个不同的实施方案,所述重放视频发生器响应于一个用户简档而可操作地来重放一组特殊内容剪辑的被选择的子组。因此,用户能够被呈现以特别适合于他的个人爱好或观看习惯的特殊内容剪辑。
根据本发明的另一个实施方案,所述重放视频发生器可操作地来以一个取决于一组特殊内容剪辑中的特殊内容剪辑的以前观看的顺序来重放所述一组特殊内容剪辑。因此,所述排序能够被特别地定制以适合用户,而不是简单地按年代顺序重放。例如,所述重放顺序可以是最近被接收的以前未观看的特殊内容剪辑,后面是较早以前观看的内容剪辑。
根据本发明的另一个实施方案,所述重放视频发生器可操作地来以依据一个用户优选简档的顺序而重放所述一组特殊内容剪辑。因此,所述重放顺序可以特别适合于所述用户。
根据本发明的一个不同的实施方案,所述视频记录器装置还包括一个具有特殊内容剪辑启动用户输入的遥控,并且其中所述视频记录器装置可操作地来根据所述特殊内容剪辑启动用户输入的启动而开始所述特殊内容剪辑的重放。因此,一种用户很容易使用的控制所述特殊内容剪辑重放的方法被提供。
根据本发明的另一个实施方案,所述视频记录器装置可操作地来根据所述特殊内容剪辑启动用户输入的启动以便:如果所述一组特殊内容剪辑正被重放,则为对应于当前正被播放的特殊内容剪辑的节目设置一种记录安排,并且如果所述一组特殊内容剪辑未被重放,则开始所述一组特殊内容剪辑的重放。因此,用户被优选地提供了一种十分简单的机制以用于选择用于记录的节目或者启动所述特殊内容剪辑的重放。
根据本发明的另一个实施方案,所述视频记录器装置可操作地来在所述一组特殊内容剪辑重放期间,根据所述特殊内容剪辑启动用户输入的启动以便:对于所述特殊内容剪辑启动用户输入的较短的启动,开始所述一组特殊内容剪辑的下一个特殊内容剪辑的重放;并且对于所述特殊内容剪辑启动用户输入的较长的启动,为对应于当前正被播放的特殊内容剪辑的节目设置一种记录安排。因此,一种用户很容易使用的用于在所述特殊内容剪辑的重放中定位以及选择用于记录的节目的方法被提供。
根据本发明的第二个方面,提供了一种操作视频记录器的方法,包括步骤:
接收具有特殊内容剪辑和节目的混合内容的多个混合内容视频频道;在存储器中存储来自所述被接收的频道的选择的视频信号;在所述多个频道的至少之一中检测特殊内容剪辑的存在;响应于特殊内容剪辑存在的检测,从所述混合内容频道提取特殊内容剪辑以及在所述存储器中存储所述特殊内容剪辑;通过对于多个被提取和被存储的特殊内容剪辑进行分组来建立一组特殊内容剪辑;以及
重放所述一组特殊内容剪辑,借此,用户被呈现以一个从所述多个混合内容频道被提取的特殊内容剪辑连续序列。
参考在下文中被描述的实施方案,本发明的这些和其它方面将显而易见并且被阐明。
仅仅通过例子,参考附图将描述本发明的一个实施方案,其中
图1是一个来自一个广播机构的视频信号的时序图的例子的示意图;
图2是一个根据本发明的一个优选实施方案包括一个视频记录器装置的视频广播和接收系统的示意图;
图3表示根据本发明的一个实施方案的用于视频记录器装置207的操作方法300;
图4是一个根据本发明的一个实施方案的特殊内容剪辑分组的例子的示意图;以及
图5根据本发明的一个实施方案显示一种重放特殊内容剪辑的方法。
图1是一个来自一个广播机构的视频信号的时序图的例子的示意图。在这个实例中,所述广播机构传输三个视频频道101、103和105。全部三个视频频道具有混合内容并且传输节目和特殊内容剪辑的组合。节目包括电影、记录片、新闻节目、游戏节目、戏剧、喜剧表演等等,并且往往持续较长时间,典型地10分钟以上。所述特殊内容剪辑往往持续较短时间,典型地少于约5分钟。所述特殊内容剪辑本身往往不被做广告,但是旨在提供特定的信息、预览或者旨在宣传例如节目、电影、观点和/或产品。因此,特殊内容剪辑可以是公共信息广播、广告新闻简讯等等。特别地,所述特殊内容剪辑可以是与被广播机构播出的节目有关的预览或预告片,包括未来节目、电影或连续剧的预览。所述预览可以是在其它频道上的节目或者甚至其它广播机构的节目。
如在图1的例子中所示,第一个视频频道,诸如一个电视频道101(频道1)在白天播出新闻节目107。在新闻节目107之后,一个短的特殊内容剪辑以短广告块109的形式被播出,后面是另一个特殊内容剪辑以未来节目预览111的形式被播出。后面是电视喜剧“朋友们”113的一段情节,在它之后跟随另一个短广告块115和预览块117。后面跟随更多的节目119,其中的每个被以广告块121和预览块123的形式的短特殊内容剪辑分隔。
第二个视频频道,频道2,103是一个用户付费频道,它不包括任何广告。在17.00点,频道2,103以电视喜剧“弗雷泽”125的一段情节的形式播出一个节目,后面紧跟着以卡通片“辛普森斯”126的一段情节形式的另一个节目。这个节目后面是一个以例如在频道2 103上要被显示的一个未来节目或者一系列节目的预览127的形式的特殊内容剪辑。预览127后面是一个以给观众提供适当的信息的信息剪辑129的形式的不同形式的特殊内容剪辑。所述信息可以是任何适当的信息并且优选地被特别针对当前频道的目标群。因此,所述信息剪辑可以包括一个短新闻简讯或者更特别地可以是诸如当前股价和指数、传送信息、运动结果更新(例如,最近的体育运动或足球比赛得分,包括在以前的节目期间已经出现的最精彩部分的剪辑)的信息。信息剪辑129后面是以电影“卡萨布兰卡”131形式的另一个节目。更多的预览133、信息剪辑135和节目137跟随在后面。频道2是预约频道的一个例子,其中所述内容可以被特别地针对诸如运动爱好者的目标群,其中所述特殊内容剪辑能够被特别地针对所述群体的兴趣。
第三个视频频道,频道3,105是一个预约电影频道,其中电影在没有中断的情况下被完整地播出。在这个例子中,电影准时开始,在一部电影结束和一部新电影开始之间的时间被用未来演出的预览填补。因此,电影“拯救大兵瑞恩”138在17.00点之前一段时间结束,在电影138结束到17.00点之间的时间间隔139被用多个以预览形式的特殊内容剪辑填补。预览数量取决于时间间隔139的长度。在17.00点,以电影“星球大战”141形式的下一个节目开始,它后面是另一个被用预览填补的时间间隔143,直到下一部电影“猎鹿人”145开始。
图2是一个根据本发明的一个优选实施方案的包括一个视频记录器装置的视频广播系统200的示意图。
视频广播系统200包括一个广播发送机201,它广播多个视频频道给多个用户。适当的广播系统的一个例子是一种电视广播系统。因此,在所示的实施方案中,所述广播借助于无线电信号,但是在本发明中,任何适当的方法包括例如电缆广播技术都能够被使用。本领域的技术人员已知用于分发视频信号的适当的广播系统的需要和设计,并且为了简便起见在此未进一步讨论。
所述广播发送机因此传输具有特殊内容剪辑和节目的混合内容的多个混合内容视频频道。如前面描述的,所述特殊内容剪辑被嵌入在用于所述视频频道的视频信号中。
应当理解,被所述广播发送机传输的视频信号也包括用于伴随所述视频图像的声音磁道的音频信号。因此,在所述优选实施方案中的视频信号指的是组合的视频和音频信号。
所述广播系统包括多个视频记录器装置203、205、207,它们从广播发送机201接收所述视频信号广播。所述视频记录器装置优选地是个人视频记录器(PVR)。另外,其它装置,诸如电视或视频监控器,也可以接收所述广播视频信号。
图2更详细的显示了所述视频记录器装置之一。视频记录器装置207包括用于从所述广播发送机接收所述无线电信号的天线209。天线209被连接到接收机211,它接收所述多个广播视频频道的至少之一,并且产生一个被解调的视频信号,在所述优选实施方案中,该信号是一个根据MPEG-2压缩算法被压缩的数字视频信号。
接收机211被连接到用于在所述数字视频信号中检测特殊内容剪辑的存在的检测处理器213。在所述优选实施方案中,被嵌入在所述数字视频信号中的元数据被用于确定所述视频信号的当前内容是一个特殊内容剪辑。
接收机211还被连接到提取控制器215,它也被连接到检测处理器213。当检测处理器213检测存在特殊内容剪辑时,它控制提取处理器215以便从所述数字视频信号提取特殊内容剪辑。另外,提取控制器215被连接到用于存储所述特殊内容剪辑的存储器217。存储器217优选地是一个硬盘,并且除了所述被提取的特殊内容剪辑外,它被用于存储用于最近观看的节目和其它视频信号。因此,在所述优选实施方案中,相同的存储器217被用于特殊内容剪辑的存储和正常视频记录的存储以便提供和在传统视频记录装置中一样的节目时间变换。
视频记录器装置207还包括一个分组控制器219,用于通过对于被所述提取控制器提取和存储的多个特殊内容剪辑进行分组来建立一组特殊内容剪辑。在所述优选实施方案中,分组控制器219例如对于一起被提取的全部特殊内容剪辑进行分组。所述分组可以是在存储器217中的剪辑的物理分组,或者可以是通过包括指向存储器217的存储位置的一组指针或者剪辑之间的其它链接的多个特殊内容剪辑的任何适当的联系的逻辑分组。
在所述优选实施方案中,视频记录器装置207包括视频记录器控制器221,它负责控制视频记录器装置207的全部功能块。特别地,视频记录器控制器221被连接到用户接口223,并且可操作地响应于通过用户接口223被接收的用户输入而控制所述视频记录器的记录和重放。
视频记录器装置207还包括被连接到视频记录器控制器221、分组控制器219和存储器217的重放视频发生器225。重放视频发生器225包括用于根据所述被存储的视频信号产生一个适当的视频信号的功能。所述被产生的视频信号随后被输送到显示器227,在所述优选实施方案中,所述显示器227在视频记录器装置207的外部,并且例如它可以是一台监控器或电视。在所述优选实施方案中,所述被产生的视频信号等同于被从存储器217检索的视频信号。然而,在一些实施方案中,一些处理可以出现,例如,UHF调制被存储的视频信号,以便使得它适合于通过标准空中连接而被输送到电视。在其它实施方案中,从数字到模拟视频信号的转换可以被实现。
响应于请求观看特殊内容剪辑的用户输入,视频记录器211控制重放视频发生器225重放所述一组特殊内容剪辑,这样,用户被呈现以一个从多个混合内容频道提取的特殊内容剪辑的连续序列。视频记录器控制器221可以直接控制所述操作或者例如可以通过分组控制器219来这样做。同样,重放视频发生器225可以通过分组控制器219或者直接接入存储器217本身来接收被检索的特殊内容剪辑视频信号。
图3表示根据本发明的一个实施方案的用于视频记录器装置207的操作方法300。
在步骤301中,接收机211接收正被广播发送机201广播的频道中的至少一个频道。在步骤303中,检测处理器213检测是否当前被接收的视频信号是诸如预览(预告片)的特殊内容剪辑。如果是这样,则方法300在步骤305中继续进行,否则它返回到步骤301。
检测处理器213可以使用不同的方法以便检测当前被接收的信号是节目还是特殊内容剪辑。根据所述优选实施方案,所述视频信号是一个数字视频信号,它包括与所述视频信号内容有关的信息。因此,在所述优选实施方案中,所述视频信号包括指示例如是否当前的视频内容是电影、新闻节目、运动节目、预览(预告片)、广告等等的元数据。因此,特别地,所述元数据包括能够直接被用于确定所述内容是特殊内容剪辑还是节目的信息。例如,称作电视任何时间(TV-anytime)的规范定义一种用于这个类型的元数据的格式并且使用内容参考标识符识别内容。检测处理器213因此只解码所述视频信号的元数据,并且如果所述元数据指示出所述内容存在于已经被用户定义为一个特殊内容剪辑的组之一内,则它把这个指示提供给提取控制器215。
在一个更复杂的实施方案中,检测处理器213能够通过所述视频频道的视频信号的内容分析来检测所述视频内容的类别。在这个实例中,检测处理器213分析所述信号并且确定是否某些特征表示所述视频信号是节目、预览、广告等等。特别地,所述分析可以包括确定诸如音频音量级别、场景变化频率等等的特征,并且根据这些特征和用于不同类别的已知典型值的比较,能够完成特殊内容剪辑存在的检测。
根据这种分析获得的信息强调在正常内容和例如预览或预告片中的区别。用于确定是否一个视频片断可能是一个预览的技术类似于已知的用于检测商业广告的技术。用于预览的强指示器是大量场景变化、台标的出现和消失、以及介绍帧的识别。当被检测时,象编码格式或比特率那样的线索对于确定预览界限是重要的。另外,电视节目的开始和结束能够被检测以便发现其中预览很可能出现的时段。一种来自预览的重要的信息源将是正文和语音。当可用时,正文能够从闭路字幕或图文电视小标题被获得。另外,根据水平和垂直边沿的数量,在所述视频中被覆盖的正文能够被检测,并且被分段。使用光字符识别技术,这些图示正文能够被转换成机器可读取的正文。另外,语音识别或字识别能够被用于从所述音频磁道获得机器可读取的正文。正文分析随后被用于寻找诸如“BBC 2的明天”的重要的线索。这种分析能够以频繁出现的词和短语的列表为基础。把被提及的名称和日期与电子节目指南进行匹配提供了想要预览哪个节目的线索。
在步骤305中,通过在存储器217中存储所述特殊内容剪辑的视频信号,所述方法继续进行。
在步骤307中,确定是否所述特殊内容剪辑已经结束。如果未结束,则所述方法在步骤305中继续进行并且继续存储所述视频信号。如果所述特殊内容剪辑已经结束,则所述方法返回到步骤301并且继续接收所述视频频道。
这样,所述视频记录器装置继续接收并且为特殊内容剪辑而扫描被接收的视频频道。无论何时一个特殊内容剪辑被检测到,它就被存储在存储器217中。另外,视频记录器装置207可以自动地改变频道并且象这样可以监控第一个视频频道一段给定的时间,随后监控第二个视频频道一段给定的时间。因此,被嵌入的一个或多个混合内容视频频道的特殊内容剪辑能够被自动地提取并且被存储在存储器217中。
根据本发明的一个简单的实施方案,全部被检测的特殊内容剪辑被存储在所述存储器中。然而,在所述优选实施方案中,一种更复杂的算法被使用,其中,确定是否所述被检测的特殊内容剪辑已经被存储。如果是这样,则当前特殊内容剪辑重写现有的版本从而确保最新的特殊内容剪辑版本被存储在存储器中。可替代地,当前的特殊内容剪辑可以被跳过并且已经被存储的剪辑可以被保留。
在另一个实施方案中,检测是否当前特殊内容剪辑与一个当前被存储的特殊内容剪辑有关,并且如果是这样,则所述有关的特殊内容剪辑被集合在一起。用这种方法,相同的电影或涉及相同事件的新闻简讯可以被集合在一起。
在所述优选实施方案中,提取控制器215可操作来存储每个被存储的特殊内容剪辑的标识。所述标识被从每个被存储的视频内容剪辑的视频内容导出,并且通过比较所述特殊内容剪辑的标识和被存储的标识来检测是否所述特殊内容剪辑已经被存储。
所述标识例如可以通过众所周知的视频指纹技术被产生。这种技术典型地根据所述视频内容计算一个密钥。
一种指纹产生的典型的方法是获取所述剪辑的小样本(例如,5秒),并且登记象在后来的帧之间亮度平均绝对差(即在一个帧中的每个象素和在下一个帧中相应的象素之间的差)等等那样的一个或几个关键低水平特征序列。这个序列是所述唯一的指纹。在例如ArunHampapur等人的:Comparision of sequence matching techniquesfor video copy detection(用于视频复制检测的序列匹配技术的比较),SPIE会议论文集第4676(2002)卷,第194-201页中能够发现更多的信息。
优选地,所述标识对于每个视频内容是唯一的,或者可能的标识的数量是如此之大以致两个不同的剪辑具有相同的标识的可能性很小。在每个新的特殊内容剪辑被存储时,所述标识也被独立存储在存储器217中(或者可能在一个不同的存储器中),从而被存储的视频剪辑标识的目录被建立。在新的特殊内容剪辑被接收时,所述标识被确定。所述标识目录随后被寻找匹配,并且如果没有一个匹配被发现,则所述特殊内容剪辑被存储在存储器217中。
图4是一个根据本发明的一个实施方案的特殊内容剪辑分组的例子的示意图。
在这个例子中,第一个频道401包括被广告块403和预览块405、407、409、411分隔的节目402。在这个例子中,用户输入已经指示所述预览是应该被提取和存储的特殊内容剪辑。在所述视频信号被接收时,检测处理器213监控所述视频信号,并且当一个预览被检测时,检测处理器213通知所述提取控制器215开始把它存储在存储器217中。所述存储器的结构413在图4中被显示。在这个例子中,存储器217具有一个被保留用于存储特殊内容剪辑的块。在检测处理器213检测到预览405开始时,所述提取控制器开始在所述存储器结构的特殊内容剪辑块中存储所述视频信号。当所述检测处理器检测到预览405已经结束时,所述记录被停止。当检测处理器213检测到下一个预览407开始时,提取控制器215紧接在以前被存储的预览407之后继续存储剪辑407。同样地,当下一个预览409、411被接收时,它们紧随以前被存储的剪辑405、407而被连续存储。
这种机制提供了一种十分简单的存储特殊内容剪辑的方法,这样它们能够容易地被以一种连续的方式重放。在所示的例子中,通过检索在所述预览块起动时被存储的视频信号开始,连续重放被简单地完成。
然而,任何适当的在存储器中存储所述视频信号、对于所述信号和/或重放连续的特殊内容剪辑序列进行分组的方法都在本发明的预期之内。同样,所述特殊内容剪辑可以通过所述存储位置的逻辑联系被单独地存储和分组。
图5显示了根据本发明的一个实施方案的一种重放特殊内容剪辑的方法。
在步骤501中,用户输入被加以检验以确定该用户想观看一个节目还是想观看所述特殊内容剪辑的重放。如果用户想观看一个被记录的节目,则通过显示一个预览,所述方法在步骤503中继续,所述预览在所述方法启动时是第一个预览。在步骤507中,视频记录器控制器221确定在所述预览重放期间是否有一个用户输入,并且如果没有,则所述方法循环回到步骤503,并且继续重放所述预览。当当前预览结束时,后面的预览的重放被启动。当所述组的最后的预览已经被重放时,在步骤503中所述预览的重放成为所述组的第一个预览。
如果在步骤507中确定用户启动已经发生,则在步骤507中所述用户输入被估计。为了简洁,在所示的例子中,所述用户启动可能仅仅促成相关节目的重放或者用于设置一个视频记录。然而,在很多实施方案中,所述用户启动还可以结束特殊内容剪辑的重放、删除特殊内容剪辑、切断所述视频记录器装置等等。
在所给的例子中,当一个用户启动在步骤507中已经被确定时,所述重放方法在步骤509中继续。在步骤509中,确定所述用户启动是否被指向促成与当前被显示的预览有关的节目的记录或观看。如果所述用户启动是用于观看相关节目,则通过识别所述预览的节目,方法500在步骤511中继续,如果所述相关的节目已经被记录,则开始重放所述相关的节目。如果所述相关的节目未被较早记录,则一个消息被显示给用户。在步骤511之后,所述方法返回到步骤501。
如果所述用户启动被引导去设置一种用于当前预览的相关节目的记录方案,则步骤513跟随步骤509。在步骤513中,所述视频记录器装置被编程以便记录所述预览的相关节目。因此,在所述优选实施方案中,所述预览包括被嵌入的包括所述一个和多个相关节目的广播时间和频道的细节的数据,并且这个数据被提取并且被用于设置所述视频记录。在无损于本发明的情况下,用于设置所述视频记录器来记录所述相关节目的任何技术都可以被使用。在一些实例中,所述预览可以用于多个节目,诸如电视连续剧或有关的运动比赛,并且所述记录方案因此可以被设置用于记录这些节目的全部或一部分。
一个相关的节目典型地是一个预览是所述节目的预览的特殊节目。然而,在一些实施方案中,所述联系可以是间接的。例如,所述预览可以是一部连续剧的第一个节目,并且所述相关的节目是要被播放的连续剧的下一个节目,或者实际上所述相关的节目可以是多个节目,诸如所述连续剧的全部节目。
在本发明的优选实施方案中,所述重放视频发生器可操作地来只产生一个重放视频信号。现在,大多数个人视频记录器被设计成一次只能看一个被记录的视频信号以便减少复杂性从而降低成本。在这个实施方案中,所述用户输入接口能够接收在所述一组特殊内容剪辑的重放和节目的重放之间转换的用户输入。因此,例如,一个简单的用户输入能够在一个被记录的节目的播放和一组特殊内容剪辑的播放之间转换。
在所述优选实施方案中,用户还能选择所述一组特殊内容剪辑的子组。优选地,这个子组依据一个用户简档而被选择。优选地,根据用户观看习惯,例如通过监控用户观看预先确定类别的节目,来确定所述用户简档。在这个实例中,特殊内容剪辑的存储和/或重放被限于属于经常被监控的类别的特殊内容剪辑。此外,优选地,也可以根据涉及各种特殊内容剪辑和节目内容的被嵌入的数据,来进行这种分析和选择。
另外,在所述优选实施方案中,所述特殊内容剪辑的重放顺序不必按照它们被接收或被存储的顺序。更确切地说,所述视频记录器装置可以被加以设置以依据所述一组特殊内容剪辑中的特殊内容剪辑的以前观看的顺序来重放所述特殊内容剪辑。因此,所述视频记录器装置监控用户观看所述特殊内容剪辑的习惯,并且因此为所述重放区分优先次序。因此,如果观众经常观看涉及运动比赛的特殊内容剪辑,而经常跳过电影预览并且更经常跳过游戏节目的预览,则所述视频记录器装置将首先重放涉及运动比赛的全部特殊内容剪辑,后面是涉及电影的特殊内容剪辑,其后才是任何涉及游戏节目的特殊内容剪辑。
在所述优选实施方案中,视频记录器装置207用使用户能够在一定的距离控制所述视频记录器装置的遥控250操作。遥控250具有一个优选地以指示“特殊内容剪辑”或“预览”的单个按钮形式的特殊内容剪辑启动用户输入。所述被存储的特殊内容剪辑的重放可以通过按所述特殊内容剪辑按钮而被启动。
在所述优选实施方案中,所述特殊内容剪辑按钮的功能取决于所述特殊内容剪辑的重放是否正在进行。因此,在一个实施方案中,如果所述一组特殊内容剪辑正被重放,则按压所述特殊内容剪辑按钮将导致所述视频记录装置为对应于当前正被播放的特殊内容剪辑的节目设置一个记录安排。例如,如果稍后要被广播的电影预览现在正被播放,则按压所述特殊内容剪辑按钮导致所述视频记录器装置的计时器被设置成当所述电影被广播时记录该电影。如果当所述视频记录器装置未重放特殊内容剪辑时按压所述特殊内容剪辑按钮,则所述一组特殊内容剪辑的重放将被启动。
在所述优选实施方案中,在重放期间,所述特殊内容剪辑按钮的动作还具有两种功能。因此,如果所述按钮被很快地按压,则下一个特殊内容剪辑的重放将开始,并且因此所述特殊内容剪辑的剩余部分将被跳过。如果所述按钮被按压并且保持较长时间,则所述视频记录器装置将代替为对应于当前正被播放的特殊内容剪辑设置一个记录安排。例如,如上面描述的,所述视频记录器装置的计时器可以被设置来记录一部电影,它的预览现在正被播放。在最简单的实施方案中,持续时间阈值被设置在例如2秒,如果所述按钮被按压短于所述阈值,则所述重放将跳跃到下一个特殊内容剪辑,如果长于这个阈值,则所述记录将被设置。
特殊内容剪辑存储/分组和/或接收的确定和/或选择能够以任何适当的方式被进行。因此,在一些实施方案中,广播机构将定义适当的特殊内容剪辑和特殊内容剪辑的类别。在其它实施方案中,用户能够亲自选择、确定和分类节目和特殊内容剪辑。在其它实施方案中,所述分类和选择标准在所述视频记录器装置中被预先确定,并且在其它实施方案中,先前的组合被实现。
在所述优选实施方案中,特殊内容剪辑的记录和重放在不同时间被独立地执行。因此,无论何时所述视频记录器装置是空闲的,即没有重放或记录,则例如根据图3的方法,特殊内容剪辑的监控、检测和记录被执行。然而,在其它实施方案中,所述过程可以并行和/或在任何适当的时间被执行。因此,例如,在多调谐器视频记录器装置中,一个或多个频道可以被监控并且所述特殊内容剪辑被记录,同时在另一个视频频道上一个节目被记录。在一些实施方案中,所述重放和监控以及记录被同时执行。
在一个实施方案中,类似于节目的时间安排,特殊内容剪辑被确定时间,这样就知道特殊内容剪辑何时将被广播。在这个实施方案中,检测处理器213可以根据所述广播时间简单地检测特殊内容剪辑的存在。在这个实施方案中,除了记录是自动的不需要任何用户动作或记录的设置外,视频记录器装置207把所述特殊内容剪辑的记录作为任何其它节目的记录来处理。而且所述特殊内容剪辑的记录以最低的优先权被执行,这样视频记录装置207的任何其它不一致的操作将优先,并且典型地如果没有其它节目正被记录,则所述特殊内容剪辑的记录才会进行。
本发明可以被以包括硬件、软件、固件或者这些的任何组合的任何适当的形式被实现。然而,优选地,大多数功能块是作为在所述视频记录器装置的一个或多个数据处理器上运行的软件程序而被实现的。所述功能、元件和部件可以在一个单个的装置中、在多个装置中或者作为其它功能装置的一部分被实现,但是,优选地在一个单个的装置中被实现。
尽管已经参考所述优选实施方案的特殊例子描述了本发明,但是本发明未被限于在此阐明的特殊形式。更确切地说,本发明的范围只通过所附的权利要求书被限制。
本发明可以被概括如下:
本发明涉及一种视频记录器装置,它具有一个接收具有特殊内容剪辑(111、117、123、127、129、133、135、139、149)和节目(107、113、119、125、131、137、138、141、145)的混合内容的混合内容视频频道(101、103、105)的接收机(211)。一个用于检测所述特殊内容剪辑的检测处理器(213)和一个提取所述剪辑并且把它们存储在存储器(217)中的提取控制器(215)。一个对于所述特殊内容剪辑进行分组的分组控制器(219)以及一个重放所述一组特殊内容剪辑的重放视频发生器(225)。用这种方法,用户被呈现了被从多个混合内容频道提取的特殊内容剪辑的连续序列,借此,诸如预览或预告片的特殊内容剪辑的虚拟频道被产生。

Claims (20)

1.一种视频记录器装置,包括:
一个用于接收具有特殊内容剪辑和节目的混合内容的多个混合视频频道的至少之一的接收机;
一个用于存储从所述被接收的频道选择的视频信号的存储器;
一个用于在所述多个频道的至少之一中检测一个特殊内容剪辑的存在的检测处理器;
一个用于响应于所述检测处理器的检测而从所述多个频道的至少之一提取特殊内容剪辑并且在所述存储器中存储所述特殊内容剪辑的提取控制器;
一个用于通过对被所述提取控制器提取和存储的多个特殊内容剪辑进行分组而建立一组特殊内容剪辑的分组控制器;以及
一个用于重放所述一组特殊内容剪辑从而使从多个混合内容频道提取的连续的特殊内容剪辑序列被呈现给用户的重放视频发生器。
2.如权利要求1中所述的视频记录器装置,其中,所述视频记录器装置是个人视频记录器。
3.如权利要求1中所述的视频记录器装置,其中,所述重放视频发生器可操作地来只产生一个重放视频信号,并且所述视频记录器装置包括一个可操作地来接收用户输入的用户输入接口,并且所述视频记录器可操作地来响应于这个用户输入而重放所述一组特殊内容剪辑或节目。
4.如权利要求3中所述的视频记录器装置,其中,所述视频记录器可操作地来响应于在所述第一个特殊内容剪辑重放期间检测一个启动的用户输入,从而把第一个特殊内容剪辑的重放改变成相应的节目的重放。
5.如权利要求1中所述的视频记录器装置,其中,所述视频记录器装置还包括一个控制器,该控制器可操作地来响应于特殊内容剪辑和所述特殊内容剪辑和至少一个有关节目之间的联系的用户输入选择,从而安排至少一个视频记录。
6.如权利要求5中所述的视频记录器装置,其中,所述特殊内容剪辑是所述有关节目的预览并且所述至少一个视频记录是所述有关节目的至少一个视频记录。
7.如权利要求5中所述的视频记录器装置,其中,所述有关节目包括在所述混合内容视频频道上单独被传输的多个子节目,并且所述至少一个视频记录是所述有关节目的每个子节目的记录。
8.如权利要求1中所述的视频记录器装置,其中,所述特殊内容剪辑是一个预览剪辑。
9.如权利要求1中所述的视频记录器装置,其中,所述提取控制器还可操作地来确定是否一个特殊内容剪辑已经被存储在所述存储器中,并且如果是这样,则不存储所述特殊内容剪辑。
10.如权利要求9中所述的视频记录器装置,其中,所述提取控制器可操作地来存储每个被存储的特殊内容剪辑的标识,所述标识被从每个被存储的视频内容剪辑的视频内容导出,并且通过对所述特殊内容剪辑的标识和被存储的标识的比较来检测是否所述特殊内容剪辑已经被存储。
11.如权利要求1中所述的视频记录器装置,其中,所述检测处理器可操作地来检测一个特殊内容剪辑正被从包括在所述视频传输中的信息数据中接收。
12.如权利要求1中所述的视频记录器装置,其中,所述检测处理器可操作地来检测一个特殊内容剪辑正被从所述被接收的视频信号的内容分析中接收。
13.如权利要求1中所述的视频记录器装置,其中,所述重放视频发生器可操作地来响应于一个用户简档而重放被选择的所述一组特殊内容剪辑的子组。
14.如权利要求1中所述的视频记录器装置,其中,所述重放视频发生器可操作地来以一种取决于所述一组特殊内容剪辑中的特殊内容剪辑的以前观看的顺序来重放所述一组特殊内容剪辑。
15.如权利要求1中所述的视频记录器装置,其中,所述重放视频发生器可操作地来以一种取决于用户偏爱简档的顺序重放所述一组特殊内容剪辑。
16.如权利要求1中所述的视频记录器装置,所述视频记录器装置还包括一个具有特殊内容剪辑启动用户输入的遥控器,并且其中所述视频记录器装置可操作地来根据所述特殊内容剪辑启动用户输入的启动而开始所述特殊内容剪辑的重放。
17.如权利要求16中所述的视频记录器装置,其中,所述视频记录器装置可操作地来根据所述特殊内容剪辑启动用户输入的启动以便:
如果所述一组特殊内容剪辑正被重放,则为对应于当前正被播放的特殊内容剪辑的节目设置一个记录安排,并且
如果所述一组特殊内容剪辑未被重放,则开始所述一组特殊内容剪辑的重放。
18.如权利要求16中所述的视频记录器装置,其中,所述视频记录器装置可操作地来在所述一组特殊内容剪辑的重放期间根据所述特殊内容剪辑启动用户输入的启动以便:
对于所述特殊内容剪辑启动用户输入的较短的启动,开始所述一组内容剪辑组的下一个特殊内容剪辑的重放;以及
对于所述特殊内容剪辑启动用户输入的较长的启动,为对应于当前正被播放的特殊内容剪辑的节目设置一个记录安排。
19.一种视频广播系统,包括至少一个根据权利要求1的视频记录器。
20.一种操作视频记录器的方法,包括步骤:
接收具有特殊内容剪辑和节目的混合内容的多个混合内容视频频道;
在一个存储器中存储从所述被接收的频道选择的视频信号;
在所述多个频道的至少之一中检测特殊内容剪辑的存在;
响应于对特殊内容剪辑存在的检测,从所述混合内容频道提取特殊内容剪辑,并且在所述存储器中存储所述特殊内容剪辑;
通过对于多个被提取和被存储的特殊内容剪辑进行分组来建立一组特殊内容剪辑;以及
重放所述一组特殊内容剪辑,从而使用户被呈现以一个从多个混合内容频道提取的连续的特殊内容剪辑序列。
CNB038223473A 2002-09-23 2003-08-08 视频记录器装置以及操作视频记录器装置的方法 Expired - Fee Related CN100466708C (zh)

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CN100466708C (zh) 2009-03-04
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