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    • 5. 发明授权
    • Door knocker
    • 门环
    • US08327793B1
    • 2012-12-11
    • US12651588
    • 2010-01-04
    • Michael Healy
    • Michael Healy
    • E06B7/28
    • E06B7/28G10K3/00
    • A door knocker including a front display piece that is in the form of an alpha character piece including a front facing surface for display of the alpha character and a rear facing surface having at least one rearwardly directed flange member that forms part of a pivot means for the front display piece, and a rear support piece that is adapted for attachment to the face of the door. The rear support piece includes at least a first leg for pivotal engagement with the flange member and forming another part of the pivot means, a second leg that is for attachment to the door, and a third leg that forms a knocker that is selectively engageable with the rear facing surface of the alpha character piece.
    • 一种门环,包括前部显示件,其为包括用于显示阿尔法字符的前表面的α字符件的形式,以及具有至少一个向后指向的凸缘构件的后表面,所述凸缘构件形成枢转装置的一部分, 前显示件和适于附接到门的表面的后支撑件。 后支撑件包括至少第一腿部,用于与凸缘构件枢转地接合并形成枢转装置的另一部分,用于附接到门的第二腿部,以及形成可以选择性地与 阿尔法人物片的后方表面。
    • 9. 发明授权
    • Synchronizing separated upstream and downstream channels of cable modem termination systems
    • 同步电缆调制解调器端接系统的上下行通道
    • US07583704B1
    • 2009-09-01
    • US10459136
    • 2003-06-10
    • Carl WalkerDavid FoxAchot MatevossianMichael Healy
    • Carl WalkerDavid FoxAchot MatevossianMichael Healy
    • H04J3/06
    • H04J3/0644H04J3/0664
    • Methods and devices are provided for allowing upstream and downstream cable modem termination systems to be located in different physical locations. According to some embodiments of the invention, a downstream CMTS is located at a head end of a cable network and an upstream CMTS is located in each of a plurality of hubs in a cable network. Such a configuration provides more flexibility than prior art systems, especially when much of the traffic passing through the downstream CMTS is broadcast traffic, such as IP video, that will be passed to multiple hubs. Such configurations are more economical because they do not require every hub to have its own downstream CMTS. In preferred embodiments, the upstream and downstream functions are synchronized using a Global Positioning System (“GPS”) reference source.
    • 提供了用于允许上游和下游电缆调制解调器端接系统位于不同物理位置的方法和设备。 根据本发明的一些实施例,下游CMTS位于电缆网络的头端,并且上游CMTS位于电缆网络中的多个集线器的每一个中。 这样的配置提供比现有技术系统更多的灵活性,特别是当通过下游CMTS的大部分业务是将被传递到多个集线器的广播业务(例如IP视频)时。 这样的配置更经济,因为它们不需要每个集线器具有其自己的下游CMTS。 在优选实施例中,使用全球定位系统(“GPS”)参考源来同步上游和下游功能。