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    • 1. 发明授权
    • Method and apparatus for data buffering and queue management of digital
motion video signals
    • 用于数字运动视频信号的数据缓冲和队列管理的方法和装置
    • US5450544A
    • 1995-09-12
    • US357544
    • 1994-12-16
    • Doug DixonJudith GoldsteinMichael Keith
    • Doug DixonJudith GoldsteinMichael Keith
    • H04N5/14H04N5/926H04N5/937H04N7/26G06T1/00
    • H04N5/937H04N19/00H04N5/14H04N5/9261
    • A method and apparatus for storing a sequence of compressed frames of digital motion video information in a circular buffer is disclosed. In a preferred embodiment, compressed digital motion video information is written from a storage device to the circular buffer. A host pointer is set equal to the location corresponding to the end of the last frame of motion video information written to the circular buffer, and the positions of a microcode pointer and the host pointer are compared. Based on these positions, determinations are made regarding (i) whether a compressed frame of digital motion video information is present in the circular buffer and ready for decompression and (ii) whether a portion of the circular buffer can be re-written with compressed digital motion video data based on the positions of the microcode and host pointers.
    • 公开了一种在循环缓冲器中存储数字运动视频信息的压缩帧序列的方法和装置。 在优选实施例中,将压缩的数字运动视频信息从存储装置写入循环缓冲器。 将主机指针设置为等于写入循环缓冲器的运动视频信息的最后一帧结束对应的位置,并且比较微代码指针和主指针的位置。 基于这些位置,确定关于(i)数字运动视频信息的压缩帧是否存在于循环缓冲器中并准备解压缩,以及(ii)循环缓冲器的一部分是否可以用压缩数字 基于微代码和主机指针的位置的运动视频数据。
    • 3. 发明授权
    • Shared command list
    • 共享命令列表
    • US5560034A
    • 1996-09-24
    • US411384
    • 1995-03-28
    • Judith Goldstein
    • Judith Goldstein
    • G06F9/38G06F9/00
    • G06F9/3879
    • A method and apparatus for processing digital video data with a first processor and a second processor, wherein the two processors run asynchronously. First and second processor offsets are associated with the first and second processors, respectively. Commands for the two processors are stored in a set queue residing in memory shared by the two processors. The first and second processor offsets are compared to determine whether only one processor or both processors may implement commands.
    • 一种用于利用第一处理器和第二处理器处理数字视频数据的方法和装置,其中所述两个处理器异步运行。 第一和第二处理器偏移分别与第一和第二处理器相关联。 两个处理器的命令存储在驻留在由两个处理器共享的存储器中的设置队列中。 对第一和​​第二处理器偏移进行比较,以确定只有一个处理器或两个处理器都可以实现命令。