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    • 33. 发明授权
    • Network switch with a multiple bus structure and a bridge interface for
transferring network data between different buses
    • 具有多总线结构的网络交换机和用于在不同总线之间传送网络数据的网桥接口
    • US6098110A
    • 2000-08-01
    • US777501
    • 1996-12-30
    • Michael L. WitkowskiGregory T. ChandlerMohammad A. KhanGary B. KotzurDale J. MayerWilliam J. Walker
    • Michael L. WitkowskiGregory T. ChandlerMohammad A. KhanGary B. KotzurDale J. MayerWilliam J. Walker
    • H04L12/56G06F15/16G06F13/38H04L12/28
    • H04L49/351H04L49/205H04L49/354Y10S370/911
    • A network switch including a plurality of first network ports, a plurality of second network ports, a first bus, a second bus and a bridge interface coupled between the first and second buses. The first ports receive and transmit network data according to a first network protocol and the second ports receive and transmit network data according to a second network protocol. The first and second buses operate according to different bus standards. The bridge interface enables data transfer between the first and second buses and thus between the networks operating at different protocols. The switch includes a switch manager that controls the flow of network data and a processor for performing supervisory and control functions. The bridge interface includes receive buffers and transmit buffers assigned to respective ports. During packet data transfer operations across the first bus, the bridge interface emulates a first network port. During packet data transfer operations across the second bus, the bridge interface primarily acts as a slave to the second network ports by storing control lists for execution by the second network ports. This processor is relieved of performing necessary overhead functions associated with the second bus and is thus freed to perform other important switch functions.
    • 一种包括多个第一网络端口,多个第二网络端口,第一总线,第二总线和耦合在第一和第二总线之间的桥接口的网络交换机。 第一端口根据第一网络协议接收和发送网络数据,并且第二端口根据第二网络协议接收和发送网络数据。 第一和第二辆公交车根据不同的总线标准运行。 桥接口使得能够在第一和第二总线之间以及因此在以不同协议运行的网络之间进行数据传输。 交换机包括控制网络数据流的交换机管理器和用于执行监控和控制功能的处理器。 桥接口包括分配给相应端口的接收缓冲区和发送缓冲区。 在跨第一总线的分组数据传输操作期间,网桥接口模拟第一个网络端口。 在跨第二总线的分组数据传输操作期间,网桥接口主要通过存储用于由第二网络端口执行的控制列表而作为第二网络端口的从设备。 该处理器不需要执行与第二总线相关联的必要开销功能,因此可以释放以执行其他重要的开关功能。
    • 35. 发明授权
    • Serial bus system for sending multiple frames of unique data
    • 用于发送多帧唯一数据的串行总线系统
    • US6094700A
    • 2000-07-25
    • US42333
    • 1998-03-13
    • Todd DeschepperDavid J. DeLisleRuss Wunderlich
    • Todd DeschepperDavid J. DeLisleRuss Wunderlich
    • G06F13/40G06F13/00
    • G06F13/405
    • A computer system includes an I/O controller and a bridge logic device which transmit status data via a serial bus. The I/O controller comprises an embedded controller, a memory device, and a serial bus interface including a transceiver, a transmit register, and a receiver register. The bridge logic also includes a serial bus interface with a transceiver, a transmit register, and a receiver register. Data is transmitted from the transmit register of one device to the receive register of the other device. Although the serial bus protocol limits data transfers to eight-bit segments, the I/O controller and bridge logic transmit up to twenty-four different variables by encoding each transmitted byte into a data frame that includes a two-bit frame identifier and a six-bit data field. Further, one of the data frames transmitted by the I/O controller includes an acknowledge bit to indicate when a previous frame has been received from the bridge logic. The bridge logic only transmits new data if the I/O controller toggles the acknowledge bit and transmits the frame containing the toggled acknowledge bit to the bridge logic. The acknowledge bit prevents the South Bridge from overwriting previously transmitted data that has not yet been read from the receive register in the I/O controller.
    • 计算机系统包括I / O控制器和经由串行总线发送状态数据的桥逻辑器件。 I / O控制器包括嵌入式控制器,存储器件以及包括收发器,发送寄存器和接收器寄存器的串行总线接口。 桥逻辑还包括具有收发器的串行总线接口,发送寄存器和接收器寄存器。 数据从一个设备的发送寄存器发送到另一个设备的接收寄存器。 虽然串行总线协议将数据传输限制到八位段,但是I / O控制器和桥逻辑通过将每个发送的字节编码到包括两位帧标识符和六位数据帧的数据帧中来传输多达二十四个不同的变量 位数据字段。 此外,由I / O控制器发送的数据帧之一包括确认位,以指示从桥逻辑接收到先前帧的时间。 如果I / O控制器切换应答位,则桥逻辑仅传输新数据,并将包含切换应答位的帧发送到桥逻辑。 应答位可防止南桥覆盖从I / O控制器中的接收寄存器尚未读取的先前传输的数据。
    • 38. 发明授权
    • Method and apparatus for cooling and acoustic noise reduction in a
computer
    • 计算机中用于冷却和降低声学噪声的方法和装置
    • US6086476A
    • 2000-07-11
    • US127565
    • 1998-07-31
    • David PaquinDavid DeisLowell Good
    • David PaquinDavid DeisLowell Good
    • G06F1/20H05K7/20H05K5/00
    • H05K7/20727G06F1/20
    • A system for cooling a heat-producing component in a computer system includes a conduit or plenum and a fan assembly. The fan assembly may be supported by the conduit. An air stream directing and acoustic shielding member is disposed in the conduit to prevent or reduce transmission of acoustic noise during operation of the fan assembly to a region outside the computer console. The shield member may be made of an open-cell foam or other sound deadening or reflecting material. A secondary conduit is provided for recirculating a portion of the internal air within the computer chassis. The internal air stream may be joined and mixed with the air stream from outside the chassis to provide both fresh air and recirculation cooling.
    • 用于冷却计算机系统中的发热部件的系统包括导管或增压室和风扇组件。 风扇组件可以由导管支撑。 气流引导和声屏蔽构件设置在导管中以防止或减少风扇组件操作期间声学噪声的传播到计算机控制台外部的区域。 屏蔽构件可以由开孔泡沫或其它消声或反射材料制成。 设置有用于使计算机机箱内部空气的一部分再循环的次级导管。 内部空气流可以与底盘外部的空气流接合并混合,以提供新鲜空气和再循环冷却。
    • 39. 发明授权
    • Computer system capable of booting from CD-ROM and tape
    • 能够从CD-ROM和磁带引导的计算机系统
    • US6085318A
    • 2000-07-04
    • US957471
    • 1997-10-24
    • Kerry B. Vander KampRoberta W. HensleyCurtis R. Jones
    • Kerry B. Vander KampRoberta W. HensleyCurtis R. Jones
    • G06F9/445
    • G06F9/4406
    • A computer system capable of booting currently manufacturable CD-ROMs or tapes without altering the ISO standard or requiring special, customized software to perform this function. A CD-ROM developed for booting according to the present invention contains a boot record as defined by the ISO but located at the end of the defined system area. The operating code of the computer scans for a boot record starting at the beginning sector of the CD-ROM and ending at either a default number or the volume descriptor terminator. The floppy disk boot images are contained at the end of the primary volume space and incorporated in the primary volume space, not external to the primary volume space as in the ISO standard. Boot code contained in the boot record determines the size of the volume, and the proper floppy image to be used and then the actual location of the floppy image. Booting of the system then commences using the floppy image.
    • 一种能够启动当前可制造的CD-ROM或磁带而不改变ISO标准或需要特殊的定制软件来执行此功能的计算机系统。 根据本发明开发用于引导的CD-ROM包含由ISO定义但位于所定义的系统区域的末尾的引导记录。 计算机的操作代码扫描从CD-ROM的开始部分开始并以默认数字或卷描述符终止符结尾的引导记录。 软盘引导映像包含在主卷空间的末尾,并且被包含在主卷空间中,而不是ISO标准中的主卷空间外部。 引导记录中包含的引导代码决定了卷的大小,以及要使用的正确的软盘映像,然后确定软盘映像的实际位置。 系统的引导然后开始使用软盘映像。
    • 40. 发明授权
    • System for passing an index value with each prediction in forward
direction to enable truth predictor to associate truth value with
particular branch instruction
    • 用于向前传递每个预测的索引值的系统,以使真实预测器能够将真值与特定分支指令相关联
    • US6081887A
    • 2000-06-27
    • US191869
    • 1998-11-12
    • Simon C. Steely, Jr.Edward J. McLellanJoel S. Emer
    • Simon C. Steely, Jr.Edward J. McLellanJoel S. Emer
    • G06F9/38G06F9/32
    • G06F9/3844
    • A technique for predicting the result of a conditional branch instruction for use with a processor having instruction pipeline. A stored predictor is connected to the front end of the pipeline and is trained from a truth based predictor connected to the back end of the pipeline. The stored predictor is accessible in one instruction cycle, and therefore provides minimum predictor latency. Update latency is minimized by storing multiple predictions in the front end stored predictor which are indexed by an index counter. The multiple predictions, as provided by the back end, are indexed by the index counter to select a particular one as current prediction on a given instruction pipeline cycle. The front end stored predictor also passes along to the back end predictor, such as through the instruction pipeline, a position value used to generate the predictions. This further structure accommodates ghost branch instructions that turn out to be flushed out of the pipeline when it must be backed up. As a result, the front end always provides an accurate prediction with minimum update latency.
    • 一种用于预测与具有指令流水线的处理器一起使用的条件转移指令的结果的技术。 存储的预测器连接到管道的前端,并且从连接到管道后端的基于真实的预测器训练。 存储的预测器可以在一个指令周期中访问,因此提供最小预测器延迟。 通过将多个预测存储在由索引计数器索引的前端存储的预测器中来最小化更新延迟。 由后端提供的多个预测由索引计数器索引,以选择特定的预测作为给定指令流水线周期上的当前预测。 前端存储的预测器还将传递到后端预测器,例如通过指令流水线,用于产生预测的位置值。 这种进一步的结构可以容纳重影分支指令,当它必须被备份时,这些指令将被清除流出管道。 因此,前端总是以最小的更新延迟提供准确的预测。