CN1319369C - 视频记录系统和设备,及记录方法 - Google Patents

视频记录系统和设备,及记录方法 Download PDF

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CN1319369C
CN1319369C CNB018028152A CN01802815A CN1319369C CN 1319369 C CN1319369 C CN 1319369C CN B018028152 A CNB018028152 A CN B018028152A CN 01802815 A CN01802815 A CN 01802815A CN 1319369 C CN1319369 C CN 1319369C
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epg
program
write down
record
equipment
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CN1398483A (zh
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W·P·洛德
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Funai Electric Co Ltd
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Koninklijke Philips Electronics NV
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/2625Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for delaying content or additional data distribution, e.g. because of an extended sport event
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing 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
    • H04N21/434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/472End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47214End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84Generation or processing of descriptive data, e.g. content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/78Television signal recording using magnetic recording
    • H04N5/782Television signal recording using magnetic recording on tape
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/78Television signal recording using magnetic recording
    • H04N5/781Television signal recording using magnetic recording on disks or drums

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • Television Signal Processing For Recording (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

本发明公开了一种用于确定在一个记录设备上是否发生了一个错误记录的方法和设备。电子节目引导(EPG)被用于选择所要记录的节目。校正的EPG在记录之后被发送并与该记录的时间、频道和长度进行比较以确定是否由于在节目安排上的一个改变而产生一个错误记录。如果这样,则记录设备在EPG信息中搜索该节目的另一次放映并且如果发现则记录该下一次放映。

Description

视频记录系统和设备,及记录方法
技术领域
本发明涉及一种视频记录系统和设备以及记录方法。
背景技术
许多已知记录系统将以电子节目引导(EPG)的节目信息提供给记录系统,一些EPG是连续广播的,诸如来自有线电视提供商的,而其他的是被周期性下载到记录系统的。许多EPG是互动的,并使用户通过移动高亮的光标到一个节目并选择该节目10来由EPG选择一个节目来记录。
个人视频记录器(PVR)变得越来越普及,诸如TIVO个人视频记录器。PVR使用一个硬盘来记录一个节目,而不是用诸如在VCR中的磁带。PVR还使用EPG,并通过每天做一个电话拨号来下载EPG。用户通过滚动PVR的EPG来选择要记录的节目。这些系统通过不再要求用户输入日期,开始时间,长度,和将要记录节目的频道号而简化记录过程。替代的是,通过滚动EPG,用户可选择希望记录的标题。PVR自动知道日期,开始时间,长度和来自EPG的频道号并记录该节目。
在已知系统中的有一些问题。因为节目信息在周期性地下载后,如在每天早晨较早时,因此EPG将不知道该天节目安排的一些随后的改变。这使得产生材料未被成功记录的情形,如未被请求的材料被记录和所请求的材料未被记录。例如,当一场棒球赛延长到15局,而非正常的9局,该比赛可持续超过节目安排2-3个小时,预空(pre-empty)用户希望记录的其他界面。该PVR将结束记录该场比赛的最后几局,而非用户希望记录的最初的节目。无法检测PVR是否记录了错误节目,这使得它可能记录将来重新安排的节目。
发明内容
因此本发明的一个目的是提供一种将自动记录任何重新安排的记录设备,这些节目是最初希望记录的,并由于重新安排或在EPG中的错误而未被记录。
本发明的另一个目的是发送一个前一天的EPG的校正版本给记录设备。该记录设备将检测合适它记录了一个错误节目并消除这一节目和/或将自身设置为通过搜索重安排节目的EPG来再次记录重安排的节目。
本发明的再一个目的是发送一个完全校正的EPG,而记录设备将先前发送的EPG与校正后的EPG进行比较以发现差异。
本发明的又一个目的是仅仅将对前一天的EPG的改变发送给记录设备。
本发明的其他目的和优点将通过说明书的描述变得更明白和清楚。
本发明因此包括几个步骤和这些步骤中的一个和多个彼此之间的关系,和结构的装置实现特征,适合于使得这些步骤有效的元件的组合和部件的安排,所有这些将在下面的详细描述的示出,本发明的范围将由权利要求示出。
附图说明
为更好地理解本发明,将参照下列附图。
图1A和1B显示了一个根据本发明的个人视频记录器(PVR);
图2A示出了在周三早晨被发送给PVR的EPG节目安排;
图2B示出显示了将在周三晚上要被记录的网球比赛的选择;
图2C和2E示出可在周日早晨发送给PVR的校正的EPG数据的几个格式;
图2D示出了PVR已经根据校正的EPG数据选择将要记录的重安排的网球比赛;和
图3示出根据本发明的流程图。
具体实施方式
图1A显示了一个根据本发明的一个优选实施例的视频记录系统。一个个人视频记录器(PVR)10连接到一个电视11并连接到一个电话系统12(或其他通信路径)以接收EPG数据13。EPG数据13被显示在电视11上并提供一个用于通过节目菜单进行导引的光标。一个广播源(例如TV天线,电缆,卫星)15为电视11提供将要记录的内容。
图1B显示PVR10的一些部件。PVR10包括一个控制器30,一个遥控器2,一个调制解调器14,一个EPG存储器20,一个比较器24,一个屏上显示发生器26,一个记录列表存储器27,一个时钟31,一个调谐器32,一个编码器33,一个硬盘驱动器23和一个解码器34。PVR10每个早晨通过电话系统12和一个调制解调器14做一个电话拨叫以将EPG数据13下载到EPG存储器20。使用一个呈现由屏上发生器26产生的EPG数据13的用户界面,用户可通过菜单进行导引以选择将要记录的界面。PVR10记录所选择的界面并将其记录到硬盘23上。在随后的早上,进行另一个电话呼叫以下载新的EPG数据和对前一天的节目的重安排的校正EPG数据。所校正的EPG数据被保存在EPG校正存储器21并使用比较器24、与被保存在记录列表存储器27中的前一天的记录进行比较。比较器24确定所校正的数据是否包括任何前一天记录的相同的时间和频道号。如果真的有包括,则PVR10在EPG存储器20中搜索被认为是先前所要记录的节目主题以看它是否在即将来临的节目安排中。如果PVR发现重安排的节目和相同节目的另一放映,和一个后续事件,则它自动安排节目以记录该放映。
图2A-2E显示了EPG的一个例子和校正的EPGD。在周三晚上8点(8pm),有各种节目可供选择记录。这些节目没有一个被选择但是有一场棒球比赛将在晚上8点钟,在频道3放映。广告商希望这场棒球在晚上10点(10pm)结束,如图2B所示,网球比赛被认为将在频道3在晚上10点被接着播放。用户通过EPG导引并选择这场比赛以记录,PVR知道这场比赛是在周三晚上10点,在频道3放映2个小时。则PVR在这段时间记录这一频道。
周四上午做一个电话呼叫而新的EPG信息随着校正的EPG数据被下载。校正的EPG数据,如图2C和2E所示,指示周三晚上频道3的棒球比赛未结束于晚上10点,而是结束于晚上11:30。这进入网球比赛1个半小时。校正的EPG数据被显示在图2C和2E中但通常未显示给用户。更可能是以图2E中的数据库格式发送。PVR将校正的EPG数据与先前选择将要记录的节目进行记录以确定是否有一个被选择要在周三晚上在频道3由10:00-11:30PM进行记录的节目。因为用户选择在此时记录网球比赛,PVR现在知道它在半夜10:00-12:00期间由于比赛开始晚了,而记录了一个错误节目或未节目完整的网球比赛。在这一时间点,PVR可消除它在周三晚上记录的该记录(例如允许记录覆盖被错误记录的节目)或如果网球比赛的一部分事实上被记录则保留它。在这种情形下,校正的EPG数据显示该棒球比赛结束于晚上11:30,而新闻由11:30PM放映到半夜12点。则PVR搜索这场网球比赛的新的EPG数据。PVR发现它被重新安排在周四晚上10点在频道3播放。PVR自动对自身进行节目安排以在周四晚上记录这场网球比赛的放映。如果用户选择将在周四晚上记录的节目是一场电视秀(television show),诸如“ER”(而非该网球比赛)则ER被网球比赛预空,ER可能未被重安排,但是PVR将仅仅选择下周的“ER”秀被记录。
图3显示了本发明的一个优选实施例的流程图。PVR接收EPG数据40。用户由EPG数据选择一个将要记录的节目41。PVR由节目标题知道频道号,时间和节目长度,它想要记录的时间长度和在那一时间进行记录42。然后,PVR接收校正的EPG数据43。PVR或者将校正的EPG数据与先前的EPG数据进行比较以发现改变并接着将这些改变与节目记录列表进行比较44或者如果仅有改变被发送,则将这些改变与被选择将被记录的节目进行比较。如果为否,则PVR不作任何操作46。如果该比较44表明有错误的记录,则PVR为节目的重新安排放映进行搜索和该节目将要放映的下一个时间46并对自身进行设置以记录下一个放映。PVR接着可以消除和写覆盖该错误的记录47和/或通知用户一个错误或不完整的记录在何时产生和是否和何时将产生一个校正的记录。该系统还可包括用户可选的消除错误记录的选项。
本发明已经参照一个PVR进行了描述,但是它可以与诸如VCR和未来的DVD等一起实施。另外,可有许多方式来接收EPG和校正的EPG数据,诸如经由电缆连接,互联网或,如所述的,经由电话线等。
应知道在通过上面描述清楚的内容中的上述目的可有效地获得,因为在实施上述方法时做的某些改变和对上述结构做的某些改变未背离本发明的构思和范围,应理解在上面描述和附图所示的所有主题应未示例性而非限制性的。

Claims (14)

1.一种视频记录系统,包括:
一个可用于记录节目的记录设备(10,23);
一个接收i)一个电子节目引导(EPG),和ii)一个校正后的EPG的电子节目引导接收器(14,20,21,30);
一个用于对记录设备(10,23)进行节目安排以根据EPG信息记录节目的节目安排设备,该节目安排设备包含一个控制器(30)和一个存储器(27);以及
一个用于从校正后的EPG检测被选择将要记录但是未被成功记录的节目的检测器(24)。
2.权利要求1所述的视频记录系统,还包括一个用于从EPG发现未被成功记录的节目的另外放映的设备(24,27)。
3.权利要求1所述的视频记录系统,还包括一个消除来自记录设备的错误或不完整记录的节目的设备(23,24,27,30,47)。
4.一个视频记录设备,包括:
一个用于存储电子节目引导(EPG)的存储器(20);
一个用于由EPG选择将要记录的节目的选择器(27,30);
一个用于记录被选择将要记录的节目的记录器(23);
一个用于接收一个校正后的EPG的接收器(14,30,31);
一个用于从所述校正后的EPG确定被选择将要记录但是未被成功记录的节目的比较器(24)。
5.权利要求4所述的视频记录设备,还包括一个用于从EPG确定该未被成功记录的节目的下一次放映的设备(24,27);和
一个用于对记录器进行节目安排以记录该节目的下一次放映的节目安排器(27,30),该节目安排器包含一个控制器(30)和一个存储器(27)。
6.权利要求4所述的视频记录设备,还包括用于消除来自记录器的错误或不完整的记录节目的设备(23,24,27,30,47)。
7.权利要求4所述的视频记录设备,其中该记录器为一个硬盘驱动器(23)。
8.权利要求4所述的视频记录设备,其中所述比较器(24)将校正后的EPG与所保存的被选择以设置一个记录的EPG进行比较,并且,在所选择的任何时间期间,对于一个选择的信道确定EPG是否指示曾有不成功的记录。
9.一种记录方法,包括以下步骤:
接收一个EPG(40);
接收一个用户选择的要记录的节目(41);
记录该节目(42);
接收一个校正后的EPG(43);
比较校正后的EPG与所选节目的记录时间和频道号(44);
确定用户所选的节目是否出了不完整或错误的记录(44);和
要是曾有不完整或错误的记录,就为用户所选节目的下一次放映搜索EPG信息;并记录该下一次放映(45)。
10.权利要求9所述的方法,还包括用于消除该不完整或错误的记录的步骤(47)。
11.权利要求10所述的方法,其中接收EPG的步骤被周期性地进行,以得到更新的EPG信息(43)。
12.权利要求11所述的方法,其中对更新后的EPG信息执行搜索步骤(45)。
13.权利要求12所述的方法,还包括通知用户发生了一个不完整或错误的记录的步骤。
14.权利要求13所述的方法,还包括通知用户何时会发生一个校正后的记录的步骤。
CNB018028152A 2000-09-19 2001-09-06 视频记录系统和设备,及记录方法 Expired - Fee Related CN1319369C (zh)

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US09/665,564 US6795639B1 (en) 2000-09-19 2000-09-19 Follow up correction to EPG for recording systems to reset requests for recording
US09/665,564 2000-09-19

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CN1319369C true CN1319369C (zh) 2007-05-30

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WO2002025936A3 (en) 2002-07-11
US6795639B1 (en) 2004-09-21
CN1398483A (zh) 2003-02-19
JP2004509575A (ja) 2004-03-25
KR20020054348A (ko) 2002-07-06
WO2002025936A2 (en) 2002-03-28

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