Synchronization techniques for multimedia data streams
    1.
    发明授权
    Synchronization techniques for multimedia data streams 失效
    多媒体数据流的同步技术

    公开(公告)号:US5333299A

    公开(公告)日:1994-07-26

    申请号:US815652

    申请日:1991-12-31

    CPC分类号: G06F8/458 G06F17/30017

    摘要: A personal computer based, multimedia, data processing system includes a software solution to the problem of synchronizing two or more data streams which output data to two or more multimedia output devices. One stream is a master and each other stream is a slave. The master stream generates sync pulses that can be handled in two different synchronization methods, master-slave independent synchronization or master-driven slave synchronization. Sync pulses are generated with a predetermined granularity, and synchronization is achieved when a slave stream is out of tolerance. Adaptive resynchronization may be used to speed up or slow down a slave stream.

    摘要翻译: 基于个人计算机的多媒体数据处理系统包括将两个或多个数据流同步到两个或多个多媒体输出设备的数据流的同步问题的软件解决方案。 一个流是一个主站,另一个流是一个从站。 主流产生可以在两种不同的同步方法中处理的同步脉冲,主从独立同步或主从从机同步。 以预定的粒度产生同步脉冲,并且当从流超出容限时实现同步。 自适应重新同步可用于加速或减慢从属流。

    Data stream protocol for multimedia data streaming data processing system
    3.
    发明授权
    Data stream protocol for multimedia data streaming data processing system 失效
    数据流协议用于多媒体数据流数据处理系统

    公开(公告)号:US5339413A

    公开(公告)日:1994-08-16

    申请号:US934069

    申请日:1992-08-21

    IPC分类号: G06F13/38 G06F13/00

    CPC分类号: G06F13/387

    摘要: A data stream is created for moving data from a source to a target in accordance with a stream protocol defined by controlling stream protocol control blocks (SPCBs) created from a predefined source SPCB and a predefined target SPCB. The controlling SPCBs include information establishing a plurality of data buffers that are used to efficiently stream or transfer data on a real-time basis. The controlling SPCBs are formed by a process of negotiation in which differences between the source and target SPCBs are reconciled in accordance with rules of negotiation. Once the data stream is created, it is then started by the application program and data is streamed until an end of stream is reached.

    摘要翻译: 根据通过控制从预定义源SPCB和预定义目标SPCB创建的流协议控制块(SPCB)定义的流协议,创建用于将数据从源移动到目标的数据流。 控制SPCB包括建立多个数据缓冲器的信息,这些信息用于实时地有效地流传输或传输数据。 控制SPCB是通过协商过程形成的,根据协商规则,源和目标SPCB之间的差异是协调的。 一旦创建了数据流,然后由应用程序启动,并且数据被流式传输,直到达到流的结束。

    Method and apparatus for synchronizing streaming and non-streaming
multimedia devices by controlling the play speed of the non-streaming
device in response to a synchronization signal
    4.
    发明授权
    Method and apparatus for synchronizing streaming and non-streaming multimedia devices by controlling the play speed of the non-streaming device in response to a synchronization signal 失效
    用于通过响应于同步信号控制非流设备的播放速度来同步流媒体和非流媒体设备的方法和装置

    公开(公告)号:US5619733A

    公开(公告)日:1997-04-08

    申请号:US337064

    申请日:1994-11-10

    IPC分类号: G11B27/00 G11B27/10 G06F13/00

    摘要: Disclosed are apparatus and methods for synchronized presentation of analog and digital data by applying a common synchronization scheme to both types of data. Digital data is "streamed" by transferring the data in blocks from a source to a series of memory buffers, where it accumulates for subsequent transfer to an output device driver. The control module responsible for data streaming periodically reports a temporal location within the presentation represented by the data. A supervisory module designates one of the control modules a "master", and periodically compares the values reported by the various other control modules against that reported by the master. If a comparison exceeds a threshold tolerance value associated with each control module, a sync pulse is delivered to that control module, causing it to correct the synchronization mismatch. This approach is applied to analog sources through the use of control modules that behave in a manner consistent with the digital control modules, but which are capable of directing the operation of analog devices and re-establishing their synchronization with other data sources despite limited modes of device control. Specifically, the control modules that handle analog information also periodically report a presentation location based solely on temporal information, react to sync pulses by altering the playback rate of the analog devices they control within user-tolerable limits, and can act as master control modules.

    摘要翻译: 公开了通过对两种类型的数据应用公共同步方案来同步呈现模拟和数字数据的装置和方法。 通过将块中的数据从源传送到一系列存储器缓冲器,数字数据被“流式传输”,其中它累积用于随后传送到输出设备驱动器。 负责数据流的控制模块周期性地报告由数据表示的呈现内的时间位置。 监控模块将控制模块中的一个指定为“主站”,并且周期性地将由各种其他控制模块报告的值与主站报告的值进行比较。 如果比较超过与每个控制模块相关联的阈值容限值,则将同步脉冲传送到该控制模块,从而使其纠正同步失配。 这种方法通过使用以与数字控制模块一致的方式运行的控制模块应用于模拟源,但是哪些能够指导模拟设备的操作并且重新建立与其他数据源的同步,尽管有限的模式 设备控制。 具体地说,处理模拟信息的控制模块也仅基于时间信息周期性地报告呈现位置,通过改变在用户可容忍的范围内控制的模拟设备的重放速率来对同步脉冲作出反应,并且可以作为主控模块。

    Method, system, and program for providing pages of information with navigation and content areas
    5.
    发明授权
    Method, system, and program for providing pages of information with navigation and content areas 失效
    用于向导航和内容区域提供信息页面的方法,系统和程序

    公开(公告)号:US06549220B1

    公开(公告)日:2003-04-15

    申请号:US09329460

    申请日:1999-06-10

    IPC分类号: G06F1500

    CPC分类号: G06F17/30873 G06F3/0481

    摘要: Disclosed is a system, method, program, and electronic storage media for providing at least one content area of information and n different sized navigation areas. There are n addressable locations for each content area. Each of the n addressable locations for one content area comprises the same content area with a different sized navigation area. Further, each of the n navigation areas includes at least one link to another addressable location with the same content area and a different sized navigation area.

    摘要翻译: 公开了一种用于提供信息的至少一个内容区域和n个不同大小的导航区域的系统,方法,程序和电子存储介质。 每个内容区域都有n个可寻址的位置。 一个内容区域的n个可寻址位置中的每一个包括具有不同大小的导航区域的相同内容区域。 此外,n个导航区域中的每一个包括具有相同内容区域和不同大小的导航区域的至少一个到另一可寻址位置的链接。

    System for facilitating continuous, real-time, unidirectional, and
asynchronous intertask and end-device communication in a multimedia
data processing system using open architecture data communication
modules
    7.
    发明授权
    System for facilitating continuous, real-time, unidirectional, and asynchronous intertask and end-device communication in a multimedia data processing system using open architecture data communication modules 失效
    用于在使用开放架构数据通信模块的多媒体数据处理系统中促进连续,实时,单向和异步的任务和终端设备通信的系统

    公开(公告)号:US5625845A

    公开(公告)日:1997-04-29

    申请号:US960976

    申请日:1992-10-13

    摘要: A data processing system is provided for executing multimedia applications which interface with multimedia end devices that consume or produce at least one of (a) real-time and (b) asynchronous streamed data. The data processing system includes a central processing unit for data processing operations including execution of the multimedia application, a digital signal processor for processing data including the streamed data, and a plurality of modular components which cooperate to provide a substantially open architecture. The plurality of modular components include a plurality of modular multimedia software tasks which are executable by the digital signal processor and which may be called by the multimedia application for execution in the digital signal processor, as well as a plurality of data communication modules for linking selected ones of the plurality of modular multimedia software tasks with selected others of the plurality of modular multimedia software tasks, and for linking selected multimedia end devices with selected ones of the plurality of modular multimedia software tasks. Each of the plurality of data communication modules allows continuous, real-time and unidirectional communication of streamed data. The enhanced connectivity of the modular approach for the multimedia data processing system allows additional modular multimedia software tasks to be added to the plurality of modular multimedia software tasks and selectively linked to selected ones of the plurality of modular multimedia software tasks and selected ones of the multimedia end devices.

    摘要翻译: 提供了一种数据处理系统,用于执行与多媒体终端设备接口的多媒体应用程序,该多媒体终端设备消耗或产生(a)实时和(b)异步流数据中的至少一个。 数据处理系统包括用于包括多媒体应用的执行的数据处理操作的中央处理单元,用于处理包括流传输的数据的数据的数字信号处理器,以及多个模块化组件,其协作以提供基本上开放的架构。 多个模块化组件包括多个模块化多媒体软件任务,这些任务可由数字信号处理器执行,并且可由多媒体应用程序调用以在数字信号处理器中执行,以及多个用于链接所选择的数据通信模块 所述多个模块化多媒体软件任务中的多个模块化多媒体软件任务中的一个与所选择的多个模块化多媒体软件任务中的其他任务相关联,并且用于将所选择的多媒体终端设备与多个模块化多媒体软件任务中的所选择的多个软 多个数据通信模块中的每一个允许流式数据的连续的,实时的和单向的通信。 用于多媒体数据处理系统的模块化方法的增强的连接性允许将附加的模块化多媒体软件任务添加到多个模块化多媒体软件任务中,并且选择性地链接到多个模块化多媒体软件任务中的选定模块多媒体软件任务和多媒体 终端设备。