Multimedia direct access storage device and formatting method
    1.
    发明授权
    Multimedia direct access storage device and formatting method 失效
    多媒体直接访问存储设备和格式化方法

    公开(公告)号:US06208804B1

    公开(公告)日:2001-03-27

    申请号:US09035624

    申请日:1998-03-05

    IPC分类号: H04N5781

    摘要: A multimedia direct access storage device and a method for transferring source program signals representative of a compressed digital multimedia program to and from the direct access storage device are disclosed. A multimedia program is transmitted from a multimedia server as a custom ordered series of discrete program segments and received by the multimedia direct access storage device, which buffers the compressed program segments for subsequent presentation on a local display monitor. The multimedia direct access storage device is preferably incorporated as a component of a local set-top control system for buffering a predetermined number of compressed program segments received from the multimedia server, some of which may be non-sequentially ordered and others of which may be sequentially ordered. A novel formatting methodology provides for the sequential presentation of the program segments asynchronously distributed on one or more data storage disks disposed in the direct access storage device. A user-definable presentation control window for performing local VCR-type presentation control functions for the portion of a multimedia program buffered in the direct access storage device is also provided through the novel formatting methodology.

    摘要翻译: 公开了一种多媒体直接存取存储装置和一种将代表压缩数字多媒体程序的源程序信号传送到直接存取存储装置和从直接存取存储装置传送的方法。多媒体程序作为定制的一系列离散程序段从多媒体服务器发送 并由多媒体直接访问存储设备接收,多媒体直接访问存储设备缓冲压缩的程序片段,以便随后呈现在本地显示器上。 多媒体直接访问存储设备优选地被并入作为本地机顶控制系统的组件,用于缓冲从多媒体服务器接收的预定数量的压缩节目段,其中一些可以是非顺序排列的,其中一些可以是 按顺序排序。 一种新颖的格式化方法提供了异步分布在设置在直接访问存储设备中的一个或多个数据存储盘上的程序段的顺序呈现。 还通过新颖的格式化方法提供用于对缓冲在直接访问存储设备中的多媒体程序的部分执行本地VCR型呈现控制功能的用户可定义的呈现控制窗口。

    Method and apparatus for restoring a thermal response signal of a
magnetoresistive head
    2.
    发明授权
    Method and apparatus for restoring a thermal response signal of a magnetoresistive head 失效
    用于恢复磁阻头的热响应信号的方法和装置

    公开(公告)号:US5751510A

    公开(公告)日:1998-05-12

    申请号:US581906

    申请日:1996-01-02

    摘要: An apparatus and method for reading an information signal from a magnetic storage medium using a magnetoresistive (MR) element, modifying the signal such that a thermal component of the signal representing a thermal response of the MR element is degraded, and altering the modified signal to produce a restored thermal signal substantially representative of the thermal component of the signal read from the storage medium. The information signal induced in the MR element is communicated from the MR element to an arm electronics (AE) module having a highpass filtering behavior. The AE module passes content of the information signal other than the thermal component content, thereby degrading the thermal component of the information signal. An inverse filter, implemented using an infinite impulse response (IIR) filter, receives the highpass filtered signal from the AE module and produces a restored thermal signal substantially representative of the thermal component of the information signal. The inverse filter has a response substantially inverse to that of the effective highpass filter of the AE module. A signal summing device is coupled to the AE module and the inverse filter for receiving a restored thermal signal from the inverse filter and a composite signal, including thermal and magnetic components, from the AE module and substantially eliminates the thermal component of the composite signal, which otherwise distorts or modulates the composite signal.

    摘要翻译: 一种用于使用磁阻(MR)元件从磁存储介质读取信息信号的装置和方法,修改信号,使得表示MR元件的热响应的信号的热分量降级,并将修改的信号改变为 产生基本上代表从存储介质读取的信号的热分量的恢复的热信号。 在MR元件中感应的信息信号从MR元件传送到具有高通滤波行为的臂电子(AE)模块。 AE模块通过热分量内容以外的信息信号的内容,从而降低信息信号的热分量。 使用无限脉冲响应(IIR)滤波器实现的逆滤波器从AE模块接收高通滤波的信号,并产生基本上代表信息信号的热分量的恢复的热信号。 逆滤波器具有与AE模块的有效高通滤波器相反的响应。 信号求和装置耦合到AE模块和反向滤波器,用于接收来自逆滤波器的恢复的热信号和来自AE模块的包括热和磁分量的复合信号,并且基本上消除了复合信号的热分量, 否则会扭曲或调制复合信号。

    Disk drive having optimized spindle speed for environment
    3.
    发明授权
    Disk drive having optimized spindle speed for environment 失效
    磁盘驱动器为环境优化主轴转速

    公开(公告)号:US06067203A

    公开(公告)日:2000-05-23

    申请号:US59549

    申请日:1998-04-13

    CPC分类号: G11B19/26 G11B19/04

    摘要: A disk storage device in which two or more discrete disk velocities are used is disclosed. The disk velocity is selected using operating environmental conditions. Various types of sensors may be used to detect the environmental conditions or the environmental conditions may be input by a user. The allocation of track locations on a disk into zones reduces the number of zone bit frequencies the storage device must handle when multiple frequency zones are used in connection with the various spindle speeds.

    摘要翻译: 公开了一种其中使用两个或多个离散盘速度的盘存储装置。 使用环境条件选择磁盘速度。 可以使用各种类型的传感器来检测环境条件,或者可由用户输入环境条件。 将磁盘上的轨道位置分配到区域中减少了当与多种主轴速度结合使用多个频率区域时,存储设备必须处理的区域位频率数。

    Multimedia server system and method for communicating multimedia
information
    4.
    发明授权
    Multimedia server system and method for communicating multimedia information 失效
    用于传播多媒体信息的多媒体服务器系统和方法

    公开(公告)号:US5930493A

    公开(公告)日:1999-07-27

    申请号:US472506

    申请日:1995-06-07

    CPC分类号: H04N21/47202 H04N7/17318

    摘要: A multimedia server system and a method for communicating multimedia programming to distantly situated media control systems are disclosed. The multimedia server system includes a mass storage library for storing a plurality of multimedia programs. A multimedia program is coded in accordance with a predetermined compression standard and stored in a compressed digital format as sequentially ordered discrete program segments in the mass storage library, with each of program segments being representative of a unique portion of the multimedia program. A video parser organizes the sequentially ordered program segments of a multimedia program into a custom ordered series of program segments preferably including non-sequentially and sequentially ordered program segments in accordance with configuration parameters associated with the configuration and presentation control features of a media control system requesting the multimedia program. Concurrent transmission of a plurality of custom ordered series of program segments to a corresponding plurality of distantly located media control systems is facilitated by an asynchronous transfer mode distribution switch. The custom ordered series of program segments are processed by a local media control system to provide for the sequential presentation of the program segments on a local display and for providing local VCR-type control functions.

    摘要翻译: 公开了一种多媒体服务器系统和用于将多媒体节目传送到远距离介质控制系统的方法。 多媒体服务器系统包括用于存储多个多媒体节目的大容量存储库。 多媒体节目按照预定的压缩标准进行编码,并以压缩的数字格式存储在大容量存储库中作为顺序排列的离散节目片段,每个节目片段代表多媒体节目的唯一部分。 视频分析器将多媒体节目的顺序排列的节目片段按照与所要求的媒体控制系统的配置和演示控制特征相关联的配置参数,优选地包括非顺序和顺序排列的节目片段,定制顺序排列的节目片段, 多媒体节目。 通过异步传送模式分配开关便于将多个定制的有序系列节目片段并行传输到相应的多个位于远处的媒体控制系统。 定制的一系列节目片段由本地媒体控制系统处理以提供在本地显示器上的节目片段的顺序显示并且用于提供本地VCR型控制功能。

    Intelligent multimedia set-top control method and apparatus in which
billing signals are communicated to an information network upon
presentation of downloaded media programs
    9.
    发明授权
    Intelligent multimedia set-top control method and apparatus in which billing signals are communicated to an information network upon presentation of downloaded media programs 失效
    智能多媒体机顶控制方法和装置,其中在呈现下载的媒体节目时,计费信号被传送到信息网络

    公开(公告)号:US5654747A

    公开(公告)日:1997-08-05

    申请号:US366268

    申请日:1994-12-29

    摘要: A method and apparatus for effectuating the reception and local storage of source information signals representative of a media program transmitted from a source information network preferably over a cable television channel on a pay-per-view basis is disclosed. A local intelligent set-top control unit communicates with a remote information network and a local storage device to coordinate the transmission of customer ordered media programs from the information network for storage on the local storage device. The local storage device is preferably a standard video cassette recorder (VCR) providing full VCR control functionality when presenting a stored media program on a television. A digital or optical data storage disk drive system may alternatively be employed to store source information signals downloaded from the remote information network. The intelligent set-top control unit communicates a pay-per-view billing signal to the information network upon playing of a downloaded media program, and provides protection against unauthorized copying. In an alternative configuration, a set-top control card is installed into a host computer system to coordinate the reception and local storage of downloaded media programs, and preferably provides a platform for interfacing with other home communication and electronic systems.

    摘要翻译: 公开了一种用于实现代表从源信息网络传输的媒体节目的源信息信号的接收和本地存储的方法和装置,优选地通过有线电视频道以按次付费方式发送。 本地智能机顶控制单元与远程信息网络和本地存储设备进行通信,以协调来自信息网络的客户有序媒体节目的传输,以存储在本地存储设备上。 本地存储设备优选地是当在电视机上呈现存储的媒体节目时提供完整的VCR控制功能的标准录像机(VCR)。 数字或光学数据存储盘驱动器系统可替代地用于存储从远程信息网络下载的源信息信号。 智能机顶控制单元在播放下载的媒体节目时将信息收费信号传送到信息网络,并提供防止未授权复制的保护。 在替代配置中,机顶控制卡被安装到主计算机系统中以协调下载的媒体节目的接收和本地存储,并且优选地提供用于与其他家庭通信和电子系统接口的平台。

    Multimedia direct access storage device and formatting method
    10.
    发明授权
    Multimedia direct access storage device and formatting method 有权
    多媒体直接访问存储设备和格式化方法

    公开(公告)号:US06529685B2

    公开(公告)日:2003-03-04

    申请号:US09771036

    申请日:2001-01-26

    IPC分类号: H04N585

    摘要: A multimedia direct access storage device and a method for transferring source program signals representative of a compressed digital multimedia program to and from the direct access storage device are disclosed. A multimedia program is transmitted from a multimedia server as a custom ordered series of discrete program segments and received by the multimedia direct access storage device, which buffers the compressed program segments for subsequent presentation on a local display monitor. The multimedia direct access storage device is preferably incorporated as a component of a local set-top control system for buffering a predetermined number of compressed program segments received from the multimedia server, some of which may be non-sequentially ordered and others of which may be sequentially ordered. A novel formatting methodology provides for the sequential presentation of the program segments asynchronously distributed on one or more data storage disks disposed in the direct access storage device. A user-definable presentation control window for performing local VCR-type presentation control functions for the portion of a multimedia program buffered in the direct access storage device is also provided through the novel formatting methodology. The novel formatting methodology also provides concurrent presentation and buffering of program segments received from the multimedia server for on-demand viewing of a selected multimedia program.

    摘要翻译: 公开了一种多媒体直接存取存储装置和一种将代表压缩数字多媒体程序的源程序信号传送到直接存取存储装置的方法。 多媒体节目从多媒体服务器发送,作为定制的一系列离散节目片段,并由多媒体直接存取设备接收,多媒体直接存取设备缓存压缩的节目片段,以便随后呈现在本地显示器上。 多媒体直接访问存储设备优选地被并入作为本地机顶控制系统的组件,用于缓冲从多媒体服务器接收的预定数量的压缩节目段,其中一些可以是非顺序排列的,其中一些可以是 按顺序排序。 一种新颖的格式化方法提供了异步分布在设置在直接访问存储设备中的一个或多个数据存储盘上的程序段的顺序呈现。 还通过新颖的格式化方法提供用于对缓冲在直接访问存储设备中的多媒体程序的部分执行本地VCR型呈现控制功能的用户可定义的呈现控制窗口。 新颖的格式化方法还提供从多媒体服务器接收的节目段的并发演示和缓冲,用于所选择的多媒体节目的点播观看。