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    • 8. 发明授权
    • Method and apparatus for reducing EMI in a computer system
    • 用于在计算机系统中降低EMI的方法和装置
    • US06219255B1
    • 2001-04-17
    • US09137472
    • 1998-08-20
    • Abeye Teshome
    • Abeye Teshome
    • H05K111
    • H05K1/0253H05K1/0216H05K1/0262H05K9/0039H05K2201/09245H05K2201/093H05K2201/09345H05K2201/09663H05K2201/09781H05K2201/10689Y10T29/49155
    • A computer system includes a microprocessor, an an input coupled to provide signal inputs to the microprocessor, a mass storage coupled to the microprocessor, a video controller for coupling the microprocessor to a display, a memory coupled to provide storage to facilitate execution of computer programs by the microprocessor, and a multilayer printed circuit board for mounting the microprocessor thereon. The multilayer printed circuit board provides for reduced electromagnetic interference (EMI) and includes at least two layers. The multilayer printed circuit board further includes a first conductive segment on a first layer, a second conductive segment on the first layer, the second segment being separated from the first segment by a primary gap, and a conductive interconnect on a second layer, the interconnect for carrying a high frequency signal therein. The second layer is disposed laterally from and substantially parallel to the first layer. The interconnect is further disposed for crossing over the first segment to the second segment in a cross-over region and wherein the first segment and the second segment are further characterized by a secondary gap in the cross-over region, the secondary gap being less than the primary gap for providing an increased coupling in the cross-over region. A method for reducing a source of EMI in a multilayer printed circuit board is also disclosed.
    • 计算机系统包括微处理器,耦合以向微处理器提供信号输入的输入,耦合到微处理器的大容量存储器,用于将微处理器耦合到显示器的视频控制器,耦合以提供存储以便于执行计算机程序的存储器 以及用于在其上安装微处理器的多层印刷电路板。 多层印刷电路板提供降低的电磁干扰(EMI)并且包括至少两层。 所述多层印刷电路板还包括第一层上的第一导电段,所述第一层上的第二导电区段,所述第二区段通过初级间隙与所述第一区段分离,以及在第二层上的导电互连,所述互连 用于在其中携带高频信号。 第二层从第一层横向设置并基本平行于第一层。 所述互连被进一步布置成用于在交叉区域中跨越所述第一段到所述第二段,并且其中所述第一段和所述第二段的进一步特征在于所述交叉区域中的次级间隙,所述次级间隙小于 用于在交叉区域中提供增加的耦合的主要间隙。 还公开了一种用于减少多层印刷电路板中的EMI源的方法。
    • 9. 发明授权
    • Computer with cache-line buffers for storing prefetched data for a
misaligned memory access
    • 具有缓存线缓冲区的计算机,用于存储未对齐内存访问的预取数据
    • US5974497A
    • 1999-10-26
    • US861778
    • 1997-05-22
    • Abeye Teshome
    • Abeye Teshome
    • G06F12/08G06F13/40G06F13/00
    • G06F12/0835G06F12/0886G06F13/4059
    • In a computer including two buses, a main memory, a write back cache, and a peripheral device, a method and apparatus for providing an inter-bus buffer to support successive main memory accesses from the peripheral device is disclosed. The buffer is included in a bridge device for interfacing the two computer buses and controlling when the peripheral device may access the main memory. When the peripheral device attempts to read data from the main memory that is duplicated in the cache and that has become stale, the bridge device initiates a write back operation to update specific data portions of the main memory corresponding to the read request. The bridge device uses look-ahead techniques such as bursting or pipelining to streamline the data coming from the cache to the main memory and to the peripheral device. When the peripheral device requests a misaligned memory read operation, upon termination of the read access due to preemption of the peripheral device, the cache line containing the remainder of the requested data is written back to the main memory, and stored in the buffler. The bridge device can then use the data stored in the buffer to respond to subsequent memory access requests from the peripheral device.
    • 在包括两个总线的计算机中,主存储器,写回高速缓冲存储器和外围设备,公开了一种用于提供总线间缓冲器以支持来自外围设备的连续主存储器访问的方法和装置。 缓冲器包括在用于连接两台计算机总线的桥接设备中,并且控制外围设备何时可以访问主存储器。 当外围设备尝试从主存储器中读取数据,该数据被复制在高速缓存中并且已经变得过时时,桥接器件启动回写操作以更新与读取请求对应的主存储器的特定数据部分。 桥接器件使用诸如突发或流水线之类的先行技术将来自高速缓存的数据简化为主存储器和外围设备。 当外围设备请求不对齐的存储器读取操作时,由于外围设备的抢占而导致读取访问终止,包含所请求数据的其余部分的高速缓存行被写回到主存储器中,并存储在缓冲器中。 然后,桥接器件可以使用存储在缓冲器中的数据来响应来自外围设备的后续存储器访问请求。
    • 10. 发明授权
    • Advertising and facilitating management access to added capabilities of intelligent devices in a system
    • 广告和便利管理访问系统中智能设备的附加功能
    • US08886703B2
    • 2014-11-11
    • US13494648
    • 2012-06-12
    • Joseph KozlowskiAbeye TeshomeJon Hass
    • Joseph KozlowskiAbeye TeshomeJon Hass
    • G06F15/16G06F15/173G06F15/177G06F15/167
    • G06F9/5044
    • A network interface device (NID) or management access point of a system is configured to: receive requests to register one or more additional capabilities provided by a second intelligent device integrated into the system; in response to the request, register the additional capabilities within a capabilities listing; advertise the additional capabilities as being an available within the system; and respond to a request from an external requestor for access to one of the additional capabilities by forwarding the management protocol and payload to the second intelligent device to enable the second intelligent device to perform all substantive processing required for the request. The NID establishes and maintains a network session between the second intelligent device and any external requestor requesting access to the additional capabilities. In response to receiving a response from the second intelligent device, the NID packages the response and forwards the response to the external requestor.
    • 系统的网络接口设备(NID)或管理接入点被配置为:接收注册由集成到系统中的第二智能设备提供的一个或多个附加功能的请求; 响应于该请求,在能力列表中注册附加功能; 将附加功能宣传为系统内可用的功能; 以及通过将所述管理协议和有效负载转发到所述第二智能设备来响应来自外部请求者的用于访问附加能力之一的请求,以使得所述第二智能设备能够执行所述请求所需的所有实质性处理。 NID建立并维护第二智能设备和请求访问附加功能的任何外部请求者之间的网络会话。 响应于接收到来自第二智能设备的响应,NID封装响应并将响应转发给外部请求者。