Communication device with forwarding database having a trie search facility
    11.
    发明授权
    Communication device with forwarding database having a trie search facility 失效
    具有转发数据库的通信设备具有特里搜索设备

    公开(公告)号:US06804230B1

    公开(公告)日:2004-10-12

    申请号:US09432591

    申请日:1999-11-03

    IPC分类号: G06F1730

    摘要: A communication device which includes a hardware trie search facility. At least part of a memory is divided into memory blocks, each of said blocks consisting of a multiplicity of locations, at least some of said locations each providing when accessed a pointer to another block and an indication of the size of the block. A shift register holds an address key, and a trie block is accessed using an address composed of a number of bits related to said indication of the size of the block. The key is shifted by said number of bits prior to a subsequent stage of the search. Part of the memory comprises an associated data table which includes entries of data enabling a packet to be forwarded and at least some locations in said blocks provide when accessed a pointer to an entry in the associated data table.

    摘要翻译: 一种包括硬件特里搜索设备的通信设备。 存储器的至少一部分被分成存储器块,每个所述块由多个位置组成,当访问指向另一个块的指针时,至少一些所述位置中的每个提供,并且指示块的大小。 移位寄存器保存地址密钥,并且使用由与块的大小的所述指示相关的多个位组成的地址访问特里块。 密钥在搜索的后续阶段之前移位所述比特数。 存储器的一部分包括相关联的数据表,其包括能够转发分组的数据的条目,并且当访问到所述相关联的数据表中的条目的指针时,所述块中的至少一些位置提供。

    Restriction of source address up-dating in network switches
    12.
    发明授权
    Restriction of source address up-dating in network switches 失效
    网络交换机中源地址更新的限制

    公开(公告)号:US06529507B1

    公开(公告)日:2003-03-04

    申请号:US09253772

    申请日:1999-02-22

    IPC分类号: H04J324

    摘要: A forwarding database in a network switch is established and maintained by performing a look-up for a source address read from an incoming frame to find a match between the source address in the frame and the source address in an entry which includes that source address, a port number and an age field. New entries are made if matches are not found, so that the forwarding database facilitates the dispatch of frames to destination addresses corresponding to source addresses in the table. The switch maintains a system age, such as a two-bit field, which is changed from time to time and the current system age is entered in the table as the age field when a source address entry is made. When said source address is found by a look-up process, it is updated with the current system age only if the age field of the entry and the current system age do not correspond. There is a saving of bandwidth arising from the avoidance of write cycles when an age field of an entry corresponds to the current system age.

    摘要翻译: 通过执行从输入帧读取的源地址的查找来查找网络交换机中的转发数据库,​​以在包含该源地址的条目中找到帧中的源地址与源地址之间的匹配, 一个港口号码和一个年龄域。 如果未找到匹配项,则创建新条目,以便转发数据库便于将帧分派到与表中的源地址对应的目标地址。 交换机维护系统时代,例如两位字段,当进行源地址表项时,它将不时更改,并将当前系统时间作为年龄字段输入表中。 当通过查找过程找到所述源地址时,仅当条目的年龄字段和当前系统时间不对应时才更新当前系统时间。 当条目的年龄字段对应于当前系统时代时,避免了写周期产生的带宽的节省。

    Stacked communication devices and method for port mirroring using modified protocol
    13.
    发明授权
    Stacked communication devices and method for port mirroring using modified protocol 失效
    使用修改协议的堆叠通信设备和端口镜像方法

    公开(公告)号:US06425015B1

    公开(公告)日:2002-07-23

    申请号:US09201345

    申请日:1998-11-30

    IPC分类号: G06F1517

    CPC分类号: H04L43/00

    摘要: Port mirroring is achieved between ports on separate devices in a stack of communication devices by establishing a protocol for communications within a cascade connection forming the stack in which an indication is given of whether the communication is being sent to the mirror port in addition to its intended destination. This avoids increasing the volume of traffic in the cascade connection as would be the case if the original and mirror copy were sent separately.

    摘要翻译: 在通信设备的堆叠中的单独设备上的端口之间实现端口镜像,通过建立用于形成堆栈的级联连接中的通信协议,其中给出除了其预期之外是否将通信发送到镜像端口的指示 目的地。 这样可以避免增加级联连接中的流量,就像分开发送原始和镜像副本的情况一样。

    Method and system for performing a retail transaction using a wireless device
    14.
    发明申请
    Method and system for performing a retail transaction using a wireless device 审中-公开
    使用无线设备执行零售交易的方法和系统

    公开(公告)号:US20050177442A1

    公开(公告)日:2005-08-11

    申请号:US10754427

    申请日:2004-01-09

    IPC分类号: G06Q10/00 G06Q30/00 G06F17/60

    摘要: A method and system for performing retail transactions allows use of a wireless device in lieu of conventional financial cards. A retail system sends customer-independent transaction data, which is matched with a customer account associated with a wireless device. A customer sends a wireless communication from a wireless device to a server. The server identifies the wireless device and identifies a customer account associated with the wireless device. The customer account and the customer-independent transaction data are matched together, authorizing the retail transaction. When multiple retail transactions occur within a short time, a matching technique scores matches between multiple retail transactions and multiple customer-initiated wireless communications.

    摘要翻译: 用于执行零售交易的方法和系统允许使用无线设备来代替传统的金融卡。 零售系统发送与客户无关的交易数据,该交易数据与与无线设备相关联的客户账户匹配。 客户从无线设备发送无线通信到服务器。 服务器识别无线设备并识别与无线设备相关联的客户帐户。 客户帐户和与客户无关的交易数据相互匹配,授权零售交易。 当在短时间内发生多个零售交易时,匹配技术在多个零售交易和多个客户发起的无线通信之间得分匹配。

    AUDITORY TEST AND COMPENSATION METHOD
    17.
    发明申请
    AUDITORY TEST AND COMPENSATION METHOD 审中-公开
    审计测试和补偿方法

    公开(公告)号:US20120230501A1

    公开(公告)日:2012-09-13

    申请号:US13394128

    申请日:2010-09-02

    IPC分类号: H04R29/00

    摘要: The present invention provides an auditory test and compensation method for an audio system comprising an audio device coupled to an audio output means and a listener of the audio device. The method comprises the steps of: delivering a series of audio stimuli through the audio output means; capturing a listener's response to the audibility of the stimuli; calculating a compensation print from the frequency response; deriving a filter from the calculated compensation print with respect to the frequencies associated with the frequency response and applying the filter to an audio signal of the audio system.

    摘要翻译: 本发明提供一种用于音频系统的听觉测试和补偿方法,该音频系统包括耦合到音频输出装置和音频装置的收听者的音频装置。 该方法包括以下步骤:通过音频输出装置传送一系列音频刺激; 捕获听众对刺激的可听性的反应; 从频率响应中计算补偿打印; 根据与频率响应相关联的频率从所计算的补偿打印导出滤波器,并将滤波器应用于音频系统的音频信号。