公开(公告)号：US5892926A

公开(公告)日：1999-04-06

申请号：US777565

申请日：1996-12-30

申请人： Michael L. Witkowski ,  William J. Walker ,  Mohammad A. Khan ,  Gary B. Kotzur ,  Dale J. Mayer

发明人： Michael L. Witkowski ,  William J. Walker ,  Mohammad A. Khan ,  Gary B. Kotzur ,  Dale J. Mayer

IPC分类号： G06F13/42 ,  H04L12/46 ,  G06F13/00

CPC分类号： G06F13/4269 ,  H04L12/46

摘要： A direct media independent interface (DMII) connection for a network device including a data link circuit, a connector, a clock circuit and a crossover connection. The data link circuit includes a reconciliation circuit that transmits and receives signals according to the MII standard. The clock circuit asserts at least one MII clock signal on the crossover connection to synchronize data transfer. The crossover connection crosses MII transmit signals with MII receive signals. A grounding circuit is optionally provided to ground one or more of the MII signals that are not required for the DMII connection. The connector may be a standard MII connector, or may be implemented as a minimum or reduced profile connector for carrying only the desired MII signals. The crossover connection is performed internally within the DMII port, or externally by a crossover cable. The cable is a standard MII cable, or is implemented as a minimum or reduced profile cable. The clock and ground circuits may be incorporated within either or both DMII ports, or may be incorporated within a crossover cable.

摘要翻译： 用于包括数据链路电路，连接器，时钟电路和交叉连接的网络设备的直接媒体独立接口（DMII）连接。 数据链路电路包括根据MII标准发送和接收信号的协调电路。 时钟电路在交叉连接上断言至少一个MII时钟信号，以同步数据传输。 交叉连接与MII接收信号交叉MII发送信号。 可选地提供接地电路以对DMII连接不需要的一个或多个MII信号进行接地。 连接器可以是标准的MII连接器，或者可以被实现为用于仅承载期望的MII信号的最小或简化的轮廓连接器。 交叉连接在DMII端口内部进行，或者在交叉电缆外部执行。 电缆是标准的MII电缆，或实现为最小或简化电缆。 时钟和接地电路可以结合在DMII端口中的一个或两个端口中，或者可以并入到交叉电缆中。

公开(公告)号：US5555250A

公开(公告)日：1996-09-10

申请号：US323263

申请日：1994-10-14

申请人： William J. Walker ,  Alan L. Goodrum ,  Dale J. Mayer

发明人： William J. Walker ,  Alan L. Goodrum ,  Dale J. Mayer

IPC分类号： G06F11/10 ,  H03M13/00

CPC分类号： G06F11/1048

摘要： A system that performs error correction and detection of data read from memory in a computer system having a processor bus and a system bus. A pair of data buffers are used to interface between the memory and the processor data bus or the system data bus. Each data buffer receives half the data bits from the memory array, from the processor data bus, and from the system data bus. Each of the data buffers contains logic for performing error detection and correction. To enable error correction, check bits are generated by the data buffers in a write cycle to the memory. A feature of the present invention is that half the check bits are provided to one data buffer and the second half is provided to other data buffer. When a memory read cycle is performed, the retrieved check bits and data bits are examined according to the error correction algorithm to determine if a single bit correctable error has occurred. If so, the erroneous data bit is flipped. If a multiple bit error is detected, the microprocessor is interrupted to take appropriate remedial actions.

摘要翻译： 在具有处理器总线和系统总线的计算机系统中执行从存储器读取的数据的错误校正和检测的系统。 一对数据缓冲器用于在存储器和处理器数据总线或系统数据总线之间进行接口。 每个数据缓冲器从存储器阵列，从处理器数据总线和系统数据总线接收数据位的一半。 每个数据缓冲器包含用于执行错误检测和校正的逻辑。 为了能够进行纠错，在数据缓冲器的写入周期内，对位进行校验。 本发明的特征在于，将一半的校验位提供给一个数据缓冲器，而将后半部分提供给其它数据缓冲器。 当执行存储器读取周期时，根据纠错算法检查检索到的检查位和数据位，以确定是否发生单个位可校正错误。 如果是，则错误的数据位被翻转。 如果检测到多位错误，则微处理器中断以采取适当的补救措施。

公开(公告)号：US4838447A

公开(公告)日：1989-06-13

申请号：US68110

申请日：1987-06-29

申请人： Karl L. Albracht ,  William J. Walker

发明人： Karl L. Albracht ,  William J. Walker

IPC分类号： F16K17/14 ,  F16K17/16

CPC分类号： F16K17/1606 ,  Y10T137/1737 ,  Y10T137/1744

摘要： A safety pressure relief device having a rupture disc with a conical central portion. The relief device comprises inlet and outlet support members wherein the rupture disc is positioned therebetween. The rupture disc has an annular outer flange portion with a conical central portion disposed radially inwardly therefrom. When positioned in the relief device, a tip of the conical portion is directed toward the inlet support member. Scoring is provided on the conical portion for defining at least one line of weakness thereon. In one embodiment, a plurality of linear scores extend radially on the conical portion and are spaced from the tip and base thereof. In another embodiment, the scoring includes a curvilinear score forming an incomplete circle adjacent the base, either spaced therefrom or contiguous therewith. With all embodiments, the rupture disc is adapted for rupturing at relatively low pressures without fragmentation.

公开(公告)号：US4061282A

公开(公告)日：1977-12-06

申请号：US744179

申请日：1976-11-22

申请人： William J. Walker ,  Henri A. Boulay

发明人： William J. Walker ,  Henri A. Boulay

IPC分类号： B02C18/14 ,  B02C18/22

CPC分类号： B02C18/144 ,  B02C18/2283 ,  Y10T83/95

摘要： A granulator construction including a cover having a first portion connected to the granulator frame along a vertical hinge line and a second portion in turn connected to the first portion along a horizontal hinge line whereby progressive opening of such cover portions along their respective hinges permits partially and fully open granulator positions whereby the feed means and the granulation chamber of the granulator are sequentially exposed. Furthermore, opposed muffler segments in part defining a feed slot are separable so that access to feed rolls etc. may be quickly gained. The lower of such muffler segments is further slidably removable entirely from the granulator construction so as to permit cleaning as when changeovers occur in the material being granulated.

摘要翻译： 一种造粒机结构，其包括具有第一部分的盖，所述第一部分沿着垂直铰链线连接到造粒机框架，第二部分又沿着水平铰链线连接到第一部分，从而沿着它们各自的铰链逐渐打开这些盖部分， 完全打开的造粒机位置，由此造粒机的进料装置和造粒室依次暴露。 此外，部分限定进料槽的相对的消声器段是可分离的，使得可以快速获得进给辊等。 这样的消声器段的下部可进一步滑动地从造粒机结构移除，以便当在被造粒的材料中发生切换时允许清洁。