High speed parallel bit error rate tester
    3.
    发明授权
    High speed parallel bit error rate tester 失效
    高速并行位错误率测试仪

    公开(公告)号:US06438717B1

    公开(公告)日:2002-08-20

    申请号:US09436350

    申请日:1999-11-09

    IPC分类号: G06F1100

    CPC分类号: H04L1/20 H04L1/0001 H04L25/14

    摘要: A high speed link between chips and comprising a multiplicity of synchronous serial data channels includes an onboard detector for detecting an error rate for each channel. The transmitter and the receiver chips are configured in response to the detector to select the channel having the lowest error rate as the control channel and optionally to render at least the channel with the highest error rate inactive.

    摘要翻译: 芯片之间的高速链路包括多个同步串行数据信道,包括用于检测每个信道的错误率的板上检测器。 响应于检测器配置发射机和接收机芯片,以选择具有最低误码率的信道作为控制信道,并且可选地使至少具有最高错误率的信道无效。

    Framing codes for high-speed parallel data buses
    4.
    发明授权
    Framing codes for high-speed parallel data buses 失效
    高速并行数据总线的成帧代码

    公开(公告)号:US06275880B1

    公开(公告)日:2001-08-14

    申请号:US09253537

    申请日:1999-02-22

    IPC分类号: G06F1300

    摘要: A plurality of serial data streams are transmitted on a corresponding plurality of lines at a common frequency in equal groups of symbols. A framing signal composed of groups of symbols corresponding in number to groups of data symbols is transmitted on an additional control line. Each group of symbols in the framing signal includes a majority of symbols capable of representing a first plurality of code words and a second plurality, substantially less than the first plurality, of valid code words, and a minority of symbols which constitute parity check symbols. Each of the valid code words consists of a first sub-group of similar symbols and a second plurality of similar symbols. For some of the valid code words the symbols in the first sub-group are similar to the symbols in the second sub-group. For other valid code words the symbols in the first sub-group are different from the symbols in the second sub-group. The valid code words correspond to groups which represent (a) start of a data packet or block; (b) data/(c) a gap between groups of data; and (d) an idle state. The sequence of groups in the framing signal is monitored by means of a state machine.

    摘要翻译: 多个串行数据流以相等的符号组以公共频率在对应的多条线上发送。 在附加控制线上发送由多个数据符号组对应的符号组构成的成帧信号。 成帧信号中的每组符号包括能够表示第一多个码字的多数符号,以及基本上小于第一多个有效码字的第二多个符号,以及构成奇偶校验符号的少数符号。 每个有效代码字由相似符号的第一子组和第二多个相似符号组成。 对于一些有效的代码字,第一子组中的符号与第二子组中的符号相似。 对于其他有效的代码字,第一子组中的符号与第二子组中的符号不​​同。 有效码字对应于表示(a)数据包或块的开始的组; (b)数据/(c)数据组之间的差距; 和(d)空闲状态。 通过状态机监视成帧信号中的组的序列。

    Assays for trichomonal and other hydrolases
    9.
    发明授权
    Assays for trichomonal and other hydrolases 失效
    滴滴涕和其他水解酶测定

    公开(公告)号:US07291481B2

    公开(公告)日:2007-11-06

    申请号:US11353497

    申请日:2006-02-13

    IPC分类号: C12Q1/02 C12Q1/34

    摘要: The release by trichomonads of a hydrolase that hydrolyzes a narrowly defined class of substrates at a low pH without interference from hydrolases that are unrelated to trichomoniasis is the basis for a selective diagnostic assay for trichomoniasis that measures hydrolysis of any of these substrates by vaginal fluid at a low pH. Selective assays for trichomoniasis are also obtained by removing particulate matter from a sample of vaginal fluid to extract a fraction devoid of particles greater than a selected size, and where desired, combining the extracted fraction with any of certain specified hydrolase inhibitors, then testing the fraction for enzymatic hydrolase activity. These qualities of trichomoniasis are the basis for a series of diagnostic tests and test devices that produce results that are detectable by visual and other means with a high degree of accuracy.

    摘要翻译: 通过滴眼剂释放水解酶,在低pH下水解狭义界限的底物类型,而不受与毛滴虫病无关的水解酶的干扰,是选择性诊断测定滴滴虫的基础,其通过阴道液测量任何这些底物的水解 低pH值。 通过从阴道液样品中除去颗粒物以提取不含大于所选大小的颗粒的部分,并且如果需要,将提取的级分与某些特定的水解酶抑制剂中的任何一种组合,然后测试级分,可以获得毛滴虫病的选择性测定 用于酶促水解酶活性。 毛滴虫病的这些质量是一系列诊断测试和测试装置的基础,其产生可以通过视觉和其他方式以高精度检测的结果。

    Stackable network unit including registers for identifying stack members and trunk ports
    10.
    发明授权
    Stackable network unit including registers for identifying stack members and trunk ports 失效
    可堆叠网络单元,包括用于识别堆叠成员和中继端口的寄存器

    公开(公告)号:US06801527B1

    公开(公告)日:2004-10-05

    申请号:US09562131

    申请日:2000-05-01

    IPC分类号: H04L1256

    摘要: A network switch comprises a multiplicity of ports for receiving and forwarding addressed data packets, a forwarding engine for directing packets received at the ports to at least one other port, a register for storing unit identifications of a set of units including the network unit, and hashing logic for selecting one of the unit identifications in response to address data in a packet. The forwarding engine makes a determination whether the one of the unit identifications corresponds to the network unit and is operative to direct the packet in accordance with that determination. The use of the register enables a substantial increase in the number of ports that can be members of a stack-wide trunk.

    摘要翻译: 网络交换机包括用于接收和转发寻址的数据分组的多个端口,用于将在端口处接收到的分组指向至少一个其他端口的转发引擎,用于存储包括网络单元的一组单元的单元标识的寄存器,以及 用于响应于分组中的地址数据来选择单元标识之一的散列逻辑。 转发引擎确定单元标识中的一个是否对应于网络单元,并且可操作以根据该确定来指导分组。 使用寄存器可以大大增加可以作为堆栈宽中继线的成员的端口数量。