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公开(公告)号:US20060015908A1
公开(公告)日:2006-01-19
申请号:US10880838
申请日:2004-06-30
申请人: Larri Vermola , Harri Pekonen
发明人: Larri Vermola , Harri Pekonen
IPC分类号: H04N7/20
CPC分类号: H04N7/17318 , H04L12/18 , H04N21/41407 , H04N21/4263 , H04N21/4722 , H04N21/84
摘要: The invention provides supplemental content related to a service on a receiver device. The supplemental content related to the service is indicted to a user on the receiver device and may be accessed by the user. The receiver device receives and displays the information concerning availability of the supplemental content related to the service. A user may select supplemental content for viewing or listening by selecting a selectable indicator on the receiver device.
摘要翻译: 本发明提供了与接收机设备上的服务相关的补充内容。 与服务相关的补充内容被指示给接收机设备上的用户,并且可被用户访问。 接收机设备接收并显示关于与服务相关的补充内容的可用性的信息。 用户可以通过选择接收机设备上的可选指示符来选择用于观看或收听的补充内容。
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公开(公告)号:US06959090B1
公开(公告)日:2005-10-25
申请号:US09718024
申请日:2000-11-20
申请人: Jukka Alve , Jan Mårtensson , Ola Lidholm , Valtteri Niemi , Juha Tomberg , Pasi Kärkäs , Harri Pekonen , Rami Suominen
发明人: Jukka Alve , Jan Mårtensson , Ola Lidholm , Valtteri Niemi , Juha Tomberg , Pasi Kärkäs , Harri Pekonen , Rami Suominen
IPC分类号: G06F12/14 , G06F21/10 , G06F21/62 , G09C1/00 , G11B20/10 , H04L9/10 , H04N5/781 , H04N5/85 , H04N5/91 , H04N5/913 , H04N21/433 , H04N21/4408 , H04N21/4623 , H04N21/4627 , H04L9/00 , H04L9/32
CPC分类号: H04N21/4334 , G11B20/0021 , G11B20/00246 , H04N5/781 , H04N5/85 , H04N5/913 , H04N21/4408 , H04N21/4623 , H04N21/4627 , H04N2005/91364
摘要: A recording device for digital data streams, such as digital TV broadcasts or digitized music, stores copies of program content encrypted by a key unique to the recording device. Distribution of program content is thus discouraged, since intelligible playback of program content would not be obtained on another recording device, which would have a different key. To reduce manufacturing complexity which would result from requiring all bits of a key to inhere in hardware, a first portion of the key inheres in hardware and a second portion is selected from among several candidates residing in a memory device, the key being determined by combining the first and second portions according to predetermined rules. The second portion is reselected at predetermined intervals from among the candidates. Only payload portions of packets are encrypted while header portions are left in the clear in order to facilitate ancillary functions of recorder such as fast forward, fast rewind, and program search.
摘要翻译: 用于诸如数字电视广播或数字化音乐的数字数据流的记录装置存储通过记录装置唯一的键加密的节目内容的副本。 因此节目内容的分发因此不鼓励,因为在具有不同密钥的另一记录设备上将不能获得节目内容的可理解的重放。 为了降低由于要求硬件中的所有位的所有位产生的制造复杂性,在硬件中的第一部分密钥和第二部分从驻留在存储器件中的几个候选中选出,该密钥通过组合确定 第一和第二部分。 第二部分以候选者之间的预定间隔被重新选择。 为了促进记录器的辅助功能,例如快进,快退和程序搜索,仅封包的有效载荷部分被加密,而标题部分保持清晰。
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公开(公告)号:US20050041696A1
公开(公告)日:2005-02-24
申请号:US10504541
申请日:2003-01-22
申请人: Harri Pekonen
发明人: Harri Pekonen
IPC分类号: H04N7/08 , H04H1/00 , H04H20/28 , H04H20/72 , H04J3/06 , H04L12/12 , H04L12/18 , H04L12/56 , H04L29/06 , H04L29/08 , H04N7/081 , H04J3/02
CPC分类号: H04L67/325 , H04H20/28 , H04H20/72 , H04L12/12 , H04L47/10 , H04L47/14 , H04L47/33 , H04L47/35 , H04L49/90 , H04L49/9031 , H04L49/9078 , H04L69/22 , H04L69/28 , H04L69/329 , H04N21/2385 , H04W4/06 , H04W28/06 , H04W28/14 , H04W48/08 , H04W52/0216 , Y02D50/20 , Y02D50/40 , Y02D70/168
摘要: In a digital broadband broadcasting system, in which information is transmitted and received periodically in bursts to reduce receiver power consumption, time-slice information is provided from the transmitter to the receiver. The time-slice information can include information from which the receiver can determine when a subsequent transmission burst will be transmitted. The time-slice information can include a burst duration, an amount of time between original bursts, the time between an original burst and a copy of the burst, and numbering of original bursts. This type of time-slice information can be placed into packet headers, such as one or more bytes reserved, but not used, for media access control addressing.
摘要翻译: 在数字宽带广播系统中,以突发方式定期发送和接收信息以减少接收机功率消耗,从发射机到接收机提供时间片信息。 时间片信息可以包括接收机可以从何时发送下一个传输突发的时间信息。 时间片信息可以包括突发持续时间,原始突发之间的时间量,原始突发和突发的拷贝之间的时间以及原始突发的编号。 这种类型的时间片信息可以放置在分组报头中,例如为媒体访问控制寻址而保留但未被使用的一个或多个字节。
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