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    Reduced multiplier digital IIR filters
    2.
    发明授权
    Reduced multiplier digital IIR filters 有权
    减少乘数数字IIR滤波器

    公开(公告)号：US06263354B1

    公开(公告)日：2001-07-17

    申请号：US09232430

    申请日：1999-01-15

    申请人： Prashant P. Gandhi

    发明人： Prashant P. Gandhi

    IPC分类号： G06F1710

    CPC分类号： H03H17/0225 ,  H03H17/04

    摘要： The application discloses a new digital IIR filter structure which uses at least one fewer multiplier than presently available in current digital IIR filter structures. In particular, by constraining one or both endpoint values (0 and fs/2) to unity, the disclosed approach uses 2 multiply operations instead of 3 for first-order structures and 3 multiply operations instead of 4 or 5 for second-order structures. This multiplier reduction enhances the capacity of the current audio equalizer digital signal processor by 30%.

    摘要翻译： 该应用公开了一种新的数字IIR滤波器结构，其使用与当前数字IIR滤波器结构中目前可用的乘法器相比更少的乘法器。 特别地，通过将​​一个或两个端点值（0和fs / 2）约束为单位，所公开的方法对于一阶结构使用2次乘法运算而不是3次乘法运算，而对于二阶结构使用3次乘法运算而不是4或5次。 该乘法器减小将当前音频均衡器数字信号处理器的容量提高了30％。

    Methods and apparatus to configure a communication port
    4.
    发明授权
    Methods and apparatus to configure a communication port 有权
    配置通信端口的方法和设备

    公开(公告)号：US07516211B1

    公开(公告)日：2009-04-07

    申请号：US10634345

    申请日：2003-08-05

    申请人： Douglas A. Gourlay ,  Prashant P. Gandhi ,  Omar G. Abuabara ,  Sachin Gupta

    发明人： Douglas A. Gourlay ,  Prashant P. Gandhi ,  Omar G. Abuabara ,  Sachin Gupta

    IPC分类号： G06F15/173

    CPC分类号： H04L41/0886 ,  H04L41/0816 ,  H04L41/0843 ,  H04L41/0856 ,  H04L43/18

    摘要： A data communication device automatically configures its own communication ports based on attributes of a remote device with which it communicates. The process of configuring the communication ports includes monitoring a communications protocol associated with a remote device on a given communication port of the data communication device without participating in the communications protocol. The data communication device detects an attribute such as a network address associated with the remote device based on the monitored communications. In response to detecting the attribute of the remote device, the data communication device selects one of multiple configuration profiles depending on the detected attribute of the remote device to configure the given communication port.

    摘要翻译： 数据通信设备根据与其通信的远程设备的属性自动配置自己的通信端口。 配置通信端口的过程包括监视与数据通信设备的给定通信端口上的远程设备相关联的通信协议，而不参与通信协议。 数据通信设备基于所监视的通信来检测诸如与远程设备相关联的网络地址的属性。 响应于检测到远程设备的属性，数据通信设备根据检测到的远程设备的属性来选择多个配置简档之一，以配置给定的通信端口。