High heat distortion temperature methacrylate polymer blends
    1.
    发明授权
    High heat distortion temperature methacrylate polymer blends 有权
    高热变形温度甲基丙烯酸酯聚合物共混物

    公开(公告)号:US06653405B2

    公开(公告)日:2003-11-25

    申请号:US10126749

    申请日:2002-04-22

    Abstract: An acrylate ester polymer composition having the desirable optical properties of poly(meth)acrylates and an enhanced Tg comprises a blend of a conventional PMMA polymer or copolymer with a high Tg acrylate ester polymer prepared by pyrolyzing a copolymer of methyl methacrylate and t-butyl methacrylate. The blend exhibits a single Tg, intermediate between the Tg of the conventional PMMA polymer and that of the pyrolyzed methyl methacrylate/t-butyl methacrylate copolymer. The blend can be formed into products that have good clarity, low haze and low color.

    Abstract translation: 具有所需的聚(甲基)丙烯酸酯的光学性能和增强的Tg的丙烯酸酯聚合物组合物包含常规PMMA聚合物或共聚物与通过热解甲基丙烯酸甲酯和甲基丙烯酸叔丁酯的共聚物制备的高Tg丙烯酸酯聚合物的共混物 。 共混物表现出单一Tg,介于常规PMMA聚合物的Tg和热解的甲基丙烯酸甲酯/甲基丙烯酸叔丁酯共聚物的Tg之间。 混合物可以形成为具有良好的透明度,低雾度和低颜色的产品。

    Inter-repeater backplane with mixed signal state machine interconnect
    3.
    发明授权
    Inter-repeater backplane with mixed signal state machine interconnect 失效
    具有混合信号状态机互连的中继器背板

    公开(公告)号:US5717714A

    公开(公告)日:1998-02-10

    申请号:US379903

    申请日:1995-01-30

    CPC classification number: G06F13/409

    Abstract: An inter-repeater backplane employs both analog and digital circuitry to convey state machine information to adjacent repeaters thereby allowing seamless integration of multiple repeaters into a single hub without requiring additional drivers or external glue logic. A data path allows the passage of data between multiple repeaters on the inter-repeater backplane and an inter-repeater backplane enable allows individual repeaters to take control of the inter-repeater backplane data bus. An inter-repeater backplane driver enables external bus drivers which may be required in synchronous systems with large backplanes. An inter-repeater backplane clock is used to synchronize multiple repeaters on the inter-repeater backplane. Only two leads (IRCOL and IRCFS) are used to provide transmit and receive collision information. These two leads in conjunction with IRENA also indicate which repeater is receiving data. The transmit and receive collision information is presented on the backplane in a manner that is both analog and digital in nature.

    Abstract translation: 中继器背板采用模拟和数字电路将状态机信息传送到相邻中继器,从而允许将多个中继器无缝集成到单个集线器中,而无需额外的驱动程序或外部胶合逻辑。 数据路径允许在中继器背板上的多个中继器之间通过数据,并且中继器背板使能允许单个中继器控制中继器背板数据总线。 中继器背板驱动器使得可以在具有大背板的同步系统中需要的外部总线驱动器。 中继器背板时钟用于同步中继器背板上的多个中继器。 只有两条线(IRCOL和IRCFS)用于提供发送和接收冲突信息。 这两个引线与IRENA结合也指出哪个中继器正在接收数据。 传输和接收冲突信息以模拟和数字本质上呈现在背板上。

    Acrylate polymer abrasion and static resistant coating
    4.
    发明授权
    Acrylate polymer abrasion and static resistant coating 有权
    丙烯酸酯聚合物耐磨和防静电涂料

    公开(公告)号:US6004484A

    公开(公告)日:1999-12-21

    申请号:US149125

    申请日:1998-09-09

    CPC classification number: C09K3/16

    Abstract: A curable coating composition for preparing an anti-static coating contains at least one addition polymerizable ethylenically unsaturated monomer, a perfluoro ionic surfactant, and a polyethoxy or fluorinated polyethoxy auxiliary compound. The perfluoro ionic surfactant and the polyethoxy or fluorinated polyethoxy auxiliary compound are present in the composition in amounts effective to impart static-dissipative properties to polymerized coatings prepared therefrom.

    Abstract translation: 用于制备抗静电涂层的可固化涂料组合物含有至少一种可加成聚合的烯属不饱和单体,全氟离子表面活性剂和聚乙氧基或氟化聚乙氧基辅助化合物。 全氟离子表面活性剂和聚乙氧基或氟化聚乙氧基辅助化合物以有效赋予由其制备的聚合涂层的静电消散性能的量存在于组合物中。

    Inter-repeater backplane with synchronous/asynchronous dual mode
operation
    5.
    发明授权
    Inter-repeater backplane with synchronous/asynchronous dual mode operation 失效
    具有同步/异步双模操作的中继器背板

    公开(公告)号:US5671249A

    公开(公告)日:1997-09-23

    申请号:US757484

    申请日:1996-11-27

    CPC classification number: H04B3/36 G06F13/409

    Abstract: An inter-repeater backplane that may operate in either a synchronous or asynchronous mode for data transmission. The inter-repeater backplane includes a bus of electrical signal conductors coupled between repeaters for communicating electrical signals and data transmission mode detector for determining whether to transmit data synchronously or asynchronously. Data is recovered from a received data packet and is reframed for transmission across the inter-repeater backplane. According to which mode of data transmission is selected, the data is then retimed and transmitted across the backplane. In the synchronous mode of data transmission, the data is synchronized with the system clock. When the asynchronous mode of data transmission is selected, the data is transmitted asynchronously with respect to the system clock. In the asynchronous mode, the recovered data is timed with a clock signal associated with the transmitting repeater.

    Abstract translation: 可以以同步或异步模式操作数据传输的中继器背板。 中继器背板包括耦合在用于传送电信号的中继器之间的电信号导体总线,以及用于确定是同步还是异步传输数据的数据传输模式检测器。 从接收到的数据分组中恢复数据,并将其重新配置用于跨中继器背板的传输。 根据哪种模式的数据传输被选择,然后将数据重新定时并通过背板传输。 在数据传输的同步模式下,数据与系统时钟同步。 当选择异步数据传输模式时,数据相对于系统时钟异步发送。 在异步模式下,恢复的数据与与发送中继器相关联的时钟信号定时。

    Inter-repeater backplane
    6.
    发明授权
    Inter-repeater backplane 失效
    中继器背板

    公开(公告)号:US5574726A

    公开(公告)日:1996-11-12

    申请号:US380651

    申请日:1995-01-30

    CPC classification number: H04L12/4625 H04L12/413

    Abstract: An inter-repeater backplane that allows either synchronous or asynchronous data transmission between multiple repeaters integrated into a single hub and enables any repeater to be swapped out without causing the backplane to crash, hang-up, or pass error messages. A dual analog, digital collision signaling scheme is utilized to obviate the need for additional drivers or external glue logic for arbitration. "the specific port of a hub receiving data (PORTN)". and The one port left state (PORTM) information is embedded within the backplane signals. Thus, the backplane scheme according to the present invention is completely seamless. Unique state machines enable the repeater to transmit data either synchronously or asynchronously. In the synchronous mode of data transmission, the data is synchronized with the system clock. When the asynchronous mode of data transmission is selected, the recovered data is synchronized with a clock signal associated with the transmitting repeater. Mixed signal state machines operate in conjunction with the dual analog, digital collision signaling scheme to prevent malfunctions when individual repeaters are swapped or removed. The mixed signal state machines implement the functions of the repeaters and control the transitions on the backplane. Thus, the unique analog digital backplane combination in conjunction with the repeater inter-repeater blackplane (IRB) state machine makes bus arbitration unnecessary.

    Abstract translation: 一个中继器背板,允许在集成到单个集线器中的多个中继器之间进行同步或异步数据传输,并允许任何中继器被交换出来,而不会导致背板崩溃,挂起或传递错误消息。 利用双模拟数字冲突信令方案来避免需要额外的驱动程序或外部胶合逻辑来进行仲裁。 “集线器接收数据的特定端口(PORTN)”。 并且一个端口左侧状态(PORTM)信息嵌入在背板信号中。 因此,根据本发明的背板方案是完全无缝的。 独特的状态机使中继器可以同步或异步地传输数据。 在数据传输的同步模式下,数据与系统时钟同步。 当选择异步数据传输模式时,恢复的数据与与发送中继器相关联的时钟信号同步。 混合信号状态机与双模拟数字碰撞信令方案一起运行,以防止在单个转发器被交换或移除时发生故障。 混合信号状态机实现中继器的功能并控制背板上的转换。 因此,独特的模拟数字背板组合与中继器中继器黑平面(IRB)状态机结合使得不需要总线仲裁。

    Inter-repeater backplane for allowing hot-swapping of individual
repeater circuits
    7.
    发明授权
    Inter-repeater backplane for allowing hot-swapping of individual repeater circuits 失效
    中继器背板,用于允许单个中继器电路的热插拔

    公开(公告)号:US5777996A

    公开(公告)日:1998-07-07

    申请号:US741338

    申请日:1996-10-29

    CPC classification number: H04L12/44 Y10S370/91 Y10S370/911

    Abstract: An inter-repeater backplane that allows seamless integration of multiple repeaters into a single hub and wherein each repeater may be swapped out without causing the backplane to crash, hang-up or pass error messages. The mixed signal state machines operate in conjunction with the dual analog, digital collision signaling scheme so that repeaters can be removed from the hub without causing the remaining repeaters in the hub to malfunction. Additional drivers or external glue logic are not needed for arbitration because PORTN and PORTM information is embedded within the backplane signals. Thus, the backplane scheme according to the present invention is completely seamless. The present invention provides a bus of electrically conductive signal lines coupled between repeaters for communicating electrical signals therebetween, collision signaling scheme that uses both analog and digital signals to convey state machine information to adjacent repeaters over the bus, collision force scheme for indicating transmit collision over the bus, monitor scheme for determining when transmit collision and PORTM conditions occur and mixed signal state machines for implementing the functions of the repeaters and controlling the transitions on the backplane. Thus, the unique analog digital backplane combination in conjunction with the repeater/IRB state machine makes bus arbitration unnecessary.

    Abstract translation: 一个中继器背板,允许将多个中继器无缝集成到单个集线器中,并且其中每个中继器可以被交换出来,而不会导致背板崩溃,挂起或传递错误消息。 混合信号状态机与双模拟数字冲突信令方案一起运行,使得可以从集线器移除中继器而不会导致集线器中的剩余转发器故障。 额外的驱动程序或外部胶合逻辑不需要仲裁,因为PORTN和PORTM信息嵌入到背板信号中。 因此,根据本发明的背板方案是完全无缝的。 本发明提供了一种耦合在用于在其间传送电信号的转发器之间的导电信号线的总线,使用模拟和数字信号两者的冲突信令方案将状态机信息传送到总线上的相邻中继器,用于指示传输冲突的碰撞力方案 用于确定何时发生碰撞和PORTM条件的总线监视器方案,以及用于实现中继器的功能并控制背板上的转换的混合信号状态机。 因此,独特的模拟数字背板组合与中继器/ IRB状态机结合使得不需要总线仲裁。

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