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    • 15. 发明申请
    • Method for regenerating and streaming content from a video server using raid 5 data striping
    • 使用raid 5数据条带从视频服务器再生和流式传输内容的方法
    • US20020066050A1
    • 2002-05-30
    • US09996074
    • 2001-11-28
    • Jesse S. LermanDanny ChinRobert G. Dandrea
    • G06F011/08
    • G06F11/1076G06F2211/1016G06F2211/1059H04N21/2182H04N21/2318H04N21/2404H04N21/47202
    • A method for streaming content striped in RAID 5 format from an array of disk drives to subscribers to minimize disruptive service from a disk drive failure. The method includes accessing content data on an extent-by-extent basis from a plurality of disk drives in an array and streams the content data to the subscribers on an extent-by-extent basis, sequentially, from the plurality of disk drives. Upon detection of an actual disk drive failure the method transitions to a stream regeneration mode of operation, which includes reading the content data substantially simultaneously from all extents in a parity group and regenerating a failed portion of the content data from a failed extent in the parity group corresponding to the failed disk drive. The content data in the parity group is streamed to the subscribers, extent-by-extent, immediately following the regenerating of the content data from the failed extent in the parity group.
    • 一种将RAID 5格式的内容从磁盘驱动器阵列流入订户的方法,以最大限度地减少从磁盘驱动器发生故障的破坏性服务。 该方法包括从阵列中的多个磁盘驱动器逐级访问内容数据,并且从多个磁盘驱动器依次顺序地将内容数据逐个流传输给用户。 在检测到实际的磁盘驱动器故障时,该方法转换到流再生操作模式,其包括基本同时从奇偶校验组中的所有范围读取内容数据,并且在奇偶校验中从故障范围重新生成内容数据的故障部分 组对应于故障磁盘驱动器。 在奇偶校验组中的内容数据从故障范围重新生成之后,奇偶校验组中的内容数据被逐个流式传输给用户。
    • 16. 发明授权
    • Information processing apparatus and method therefor in a data transfer network
    • 一种数据传输网络中的信息处理装置及方法
    • US06212681B1
    • 2001-04-03
    • US08875692
    • 1997-08-01
    • Toshihiro Ikeda
    • Toshihiro Ikeda
    • H04N7173
    • H04N21/2182A63F2300/409H04N7/17336H04N21/2143H04N21/23106H04N21/2318H04N21/2402H04N21/4781
    • Digital data of a plurality of video/audio softs is stored in a plurality of random-accessible large capacity storage device (9) and a control device (8) designates the reading of the video/audio softs and a vacant channel number to decoder devices of a multi-channel output, so that the designated video/audio softs are intermittently read out by time division from the large capacity storage devices every predetermined blocks by the decoder devices to be temporarily stored and thereafter decoded and outputted from the designated number channels, and thus, any soft can be supplied to the terminal devices at any supply starting time, irrespective of whether the requested softs are the same or different, so long as the number of the output channels of the data processing device is within the permissible range. The softs can be supplied to a number of terminal devices of which the number is beyond the number of the prepared softs, and even when the requests are concentrated to a specific soft, the access of the soft can be performed in a short time without increasing the waiting time, and it may be sufficient to merely prepare a small capacity memory in the decoder devices, so that the cost of the decoder devices can be reduced.
    • 多个视频/音频软件的数字数据被存储在多个随机可访问的大容量存储设备(9)中,并且控制设备(8)将视频/音频软件的读取和空闲的通道号指定给解码器设备 多通道输出,使得指定的视频/音频软件由解码器装置每隔预定块从大容量存储装置中分时地间断地读出以被临时存储,然后从指定的数字信道解码和输出, 因此,无论所请求的软件是相同还是不同,只要数据处理装置的输出通道的数量在允许范围内,任何软件都可以在任何电源启动时间提供给终端设备。 软件可以提供给数量超过准备好的软件的数量的多个终端设备,并且即使当请求集中到特定软件时,软件的访问可以在短时间内执行而不增加 等待时间,并且仅仅在解码器装置中准备小容量存储器就足够了,从而可以降低解码器装置的成本。
    • 17. 发明授权
    • Method of allocating multiple users to a multiple user data distribution
system
    • 将多个用户分配给多用户数据分发系统的方法
    • US5913026A
    • 1999-06-15
    • US847591
    • 1997-04-24
    • Robert BleidtDanny ChinJames Timothy Christopher Kaba
    • Robert BleidtDanny ChinJames Timothy Christopher Kaba
    • G06F3/06G06F9/50G06F12/00G06F13/00G06F15/16G06F15/80G06F17/30H04N5/00H04N7/24H04N21/226H04N21/2318H04N21/2387H04N21/239H04N21/6377H04N21/658H04N21/6587H04N21/845G06F13/20
    • H04N21/226G06F17/30067H04N21/2318H04N21/2387H04N21/2396H04N21/6377H04N21/658H04N21/6587H04N21/8456G11B2220/412
    • A method for allocating multiple users to a multiple user data distribution system. More specifically, a data retrieval method for dynamically allocating multiple users to a plurality of parallel processors each connected to an information storage device in a multiple user distribution system. The method allocates each user to at least one processor. The allocated processor represents a slot within a service period. The service period comprises a plurality of slots such that within a given slot an allocated user accesses a subset of information storage devices to supply data to the user. The users are dynamically allocated to the slots in a service period such that the specific time at which each user is serviced and the subset of information storage devices that services them varies from service period to service period. However, each user is serviced during each service period. The allocation of the user within a service period is defined by the user's present mode of operation and next mode of operation, i.e., the mode the user will use in the next service period. Additionally, the method provides error detection and correction for the data retrieved from the information storage devices. Furthermore, the method enables new data to be added to the information storage devices during each service period and permits a select number of information storage devices, such as disk drives, to be recalibrated without impacting the operation of the system.
    • 一种用于将多个用户分配给多用户数据分发系统的方法。 更具体地,涉及一种数据检索方法,用于将多个用户动态地分配给多个并行处理器,每个并行处理器连接到多用户分发系统中的信息存储设备。 该方法将每个用户分配给至少一个处理器。 分配的处理器表示服务周期内的时隙。 服务周期包括多个时隙,使得在给定时隙内,分配的用户访问信息存储设备的子集以向用户提供数据。 用户在服务周期中动态地分配给时隙,使得每个用户被维护的特定时间和服务它们的信息存储设备的子集在服务期间到服务周期不同。 然而,每个用户在每个服务期间都被服务。 用户在服务周期内的分配由用户的当前操作模式和下一个操作模式(即用户将在下一个服务周期中使用的模式)来定义。 此外,该方法为从信息存储设备检索的数据提供错误检测和校正。 此外,该方法使得能够在每个服务周期期间将新数据添加到信息存储设备,并且允许在不影响系统的操作的情况下重新校准诸如磁盘驱动器的选择数量的信息存储设备。