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    Optimizing track address detection in a disc drive
    6.
    发明授权
    Optimizing track address detection in a disc drive 失效
    优化磁盘驱动器中的磁道地址检测

    公开(公告)号：US6055121A

    公开(公告)日：2000-04-25

    申请号：US920592

    申请日：1997-08-29

    申请人： Ke Du ,  William C. Little ,  Matthew C. Burton

    发明人： Ke Du ,  William C. Little ,  Matthew C. Burton

    IPC分类号： G11B5/596

    CPC分类号： G11B5/59644

    摘要： An apparatus and method for optimizing detection thresholds used to identify addresses of tracks in a disc drive having a head and a disc upon which a plurality of tracks are defined, the tracks including track address fields in which track address information is stored. A comparator is provided which generates track address sequence signals in response to a corresponding plurality of readback signals obtained as the head is maintained in a fixed relationship to a selected track. A demodulator identifies erroneous track address sequence signals therefrom and increments a count in an accumulator for each detected, erroneous signal. A detection threshold circuit sequentially provides the comparator with a set of detection thresholds from a population of detection thresholds, each of which are used in turn by the comparator. An optimal set of thresholds is thereby selected for use by the disc drive in accordance with the relative number of erroneous track address sequence signals accumulated for each of the detection thresholds from the population.

    摘要翻译： 一种用于优化检测阈值的装置和方法，用于识别具有头和盘的盘驱动器中的轨道的地址，轨道地址信息被存储在轨道地址字段中。 提供比较器，其响应于当头被保持与所选轨道的固定关系时获得的对应的多个回读信号而产生轨道地址序列信号。 解调器从其识别错误的轨道地址序列信号，并为每个检测到的错误信号增加累加器中的计数。 检测阈值电路依次向比较器提供一组检测阈值，每个检测阈值由比较器依次使用。 因此，根据从群体中的每个检测阈值积累的错误轨道地址序列信号的相对数目，选择最佳阈值集合供磁盘驱动器使用。

    EXTERNAL VIDEO MIXING CONTROL
    10.
    发明申请
    EXTERNAL VIDEO MIXING CONTROL 有权
    外部视频混合控制

    公开(公告)号：US20130005457A1

    公开(公告)日：2013-01-03

    申请号：US13536640

    申请日：2012-06-28

    申请人： Kevin Higgins ,  William C. Little ,  Adrian R. Marcu

    发明人： Kevin Higgins ,  William C. Little ,  Adrian R. Marcu

    IPC分类号： H04N5/45 ,  A63F13/00 ,  G06F3/041

    CPC分类号： H04N21/4438 ,  G06F3/041 ,  G07F17/3209 ,  G07F17/3211 ,  G07F17/3223 ,  G07F17/323 ,  G07F17/3251 ,  H04N5/265 ,  H04N5/45 ,  H04N21/23424 ,  H04N21/4316 ,  H04N21/4781

    摘要： Techniques for allowing a gaming machine to exercise control over a picture-in-picture device (PIP mixer). A gaming machine includes a display device, a master game controller, the PIP mixer, and a PIP control interface. The master gaming controller is configured to execute a wager game, send a first video signal for the wager game to the PIP mixer, and send control instructions for controlling a display of one or more PIP windows to the PIP mixer via the PIP control interface. The PIP mixer receives the first video signal and a second video signal from an external source. The PIP mixer is configured to create a composite video image that includes display data of first video signal and the second video signal in PIP windows based on the control instructions. The composite video image is displayed on the display device.

    摘要翻译： 允许游戏机对画中画设备（PIP混音器）进行控制的技术。 游戏机包括显示装置，主游戏控制器，PIP混音器和PIP控制接口。 主游戏控制器被配置为执行下注游戏，向PIP混合器发送用于下注游戏的第一视频信号，并且经由PIP控制接口向PIP混合器发送用于控制一个或多个PIP窗口的显示的控制指令。 PIP混合器从外部源接收第一视频信号和第二视频信号。 PIP混合器被配置为基于控制指令创建包括PIP窗口中的第一视频信号和第二视频信号的显示数据的复合视频图像。 复合视频图像显示在显示设备上。