Method of determining jitter and apparatus for determining jitter
    2.
    发明授权
    Method of determining jitter and apparatus for determining jitter 有权
    确定抖动的方法和确定抖动的装置

    公开(公告)号:US07668233B2

    公开(公告)日:2010-02-23

    申请号:US10900735

    申请日:2004-07-28

    IPC分类号: H04B17/00 H04L7/00

    摘要: In accordance with illustrative embodiments, methods and apparati, which determine jitter are described. In one example embodiment, a method includes receiving a signal, wherein the signal comprises a first data pattern which was generated at a first bit rate. The method also includes sampling the signal at a second bit rate to generate a second data pattern. The period of the second bit rate is different from the period of the first bit rate. The method also includes comparing the first data pattern and the second data pattern to determine differences between the first data pattern and the second data pattern. Furthermore, the method includes determining jitter in the signal according to the differences between the first data pattern and the data second data pattern. In other embodiments, by using two different bit rates to determine jitter, jitter can be determined in communication systems in a convenient and cost effective manner.

    摘要翻译: 根据说明性实施例,描述了确定抖动的方法和装置。 在一个示例实施例中,一种方法包括接收信号,其中所述信号包括以第一比特率生成的第一数据模式。 该方法还包括以第二比特率采样信号以产生第二数据模式。 第二比特率的周期与第一比特率的周期不同。 该方法还包括比较第一数据模式和第二数据模式,以确定第一数据模式与第二数据模式之间的差异。 此外,该方法包括根据第一数据模式和数据第二数据模式之间的差异确定信号中的抖动。 在其他实施例中,通过使用两个不同的比特率来确定抖动,可以以便利且成本有效的方式在通信系统中确定抖动。

    Method, System, and Computer Program Product for Offline Advertisement Servicing and Cycling
    3.
    发明申请
    Method, System, and Computer Program Product for Offline Advertisement Servicing and Cycling 有权
    方法,系统和计算机程序产品用于离线广告服务和循环

    公开(公告)号:US20080154732A1

    公开(公告)日:2008-06-26

    申请号:US12042178

    申请日:2008-03-04

    IPC分类号: G06Q30/00 G06F17/00

    摘要: Methods, systems, apparatuses, and computer program products for servicing advertisements for offline display on mobile devices are provided. In a first aspect, a channel is received at a mobile device server from one or more providers, including a first web page, an advertiser web page, and an advertisement image file. The received channel is transmitted to the mobile device. In an offline mode, when displayed, the first web page includes an image contained by the advertisement image file. A user viewing the first web page on the mobile device can select the displayed image of the advertisement image file to traverse a link to cause the advertiser page to be displayed on the mobile device. In another aspect, a plurality of advertisement image files are received and stored at a mobile device. The display of the advertisement images on a first web page is cycled each time the first web page is displayed on the mobile device.

    摘要翻译: 提供了用于在移动设备上进行离线显示的广告服务的方法,系统,设备和计算机程序产品。 在第一方面,在移动设备服务器处从包括第一网页,广告主网页和广告图像文件的一个或多个提供者接收频道。 接收到的信道被发送到移动设备。 在脱机模式下,当显示时,第一网页包括由广告图像文件包含的图像。 在移动设备上观看第一网页的用户可以选择广告图像文件的显示图像来遍历链接,以使广告主页面显示在移动设备上。 在另一方面,多个广告图像文件被接收并存储在移动设备处。 每当第一网页在移动设备上显示时,第一网页上的广告图像的显示被循环。

    Automated system and method for optical measurement and testing
    4.
    发明授权
    Automated system and method for optical measurement and testing 有权
    用于光学测量和测试的自动化系统和方法

    公开(公告)号:US07298463B2

    公开(公告)日:2007-11-20

    申请号:US10613293

    申请日:2003-07-03

    IPC分类号: G01N21/00

    CPC分类号: H04B10/07

    摘要: A system and method for bit error rate testing optical components comprises providing an optical testing unit, which measures a bit error rate of an optical device under test (DUT) over an operating range of the DUT. The optical testing unit includes an optical transmitter, which transmits an optical test signal that is transmitted to the DUT; an optical receiver, which receives an input signal from the DUT; a graphical user interface, which provides an interface with a user; and a controller, selectively coupled to the transmitter, the receiver and the graphical user interface, wherein the controller provides a central control of the transmitter, the receiver and the graphical user interface.

    摘要翻译: 用于误码率测试光学部件的系统和方法包括提供一个光学测试单元,该测试单元测量在DUT的工作范围上的被测光学器件(DUT)的误码率。 光学测试单元包括光发射机,其发送传输到DUT的光学测试信号; 光接收器,其接收来自DUT的输入信号; 图形用户界面,其提供与用户的接口; 以及选择性地耦合到发射机,接收机和图形用户界面的控制器,其中控制器提供发射机,接收机和图形用户界面的中央控制。

    Error function analysis of optical components
    5.
    发明授权
    Error function analysis of optical components 有权
    光学元件的误差函数分析

    公开(公告)号:US07187435B2

    公开(公告)日:2007-03-06

    申请号:US10348904

    申请日:2003-01-23

    IPC分类号: G01N21/00

    CPC分类号: G01M11/33

    摘要: An error analysis tester for an optical component includes an optical transmitter, an optical attenuator, a port, a receiver, a processor and a graphical display. The optical transmitter and optical attenuator produce a test signal at a plurality of selected optical power levels. The port is configured to output the test signal to the optical component and to receive a version of the test signal from the optical component. The receiver determines errors in the received version of the test signal. The processor determines data points of a function associated with an error rate at each of the selected power levels and a line corresponding to the data points. The graphical display produces a visual plot of the data points and the corresponding line.

    摘要翻译: 用于光学部件的误差分析测试器包括光发射器,光衰减器,端口,接收器,处理器和图形显示器。 光发射机和光衰减器产生多个所选光功率电平的测试信号。 端口被配置为将测试信号输出到光学部件并从光学部件接收测试信号的版本。 接收机确定测试信号的接收版本中的错误。 处理器确定与所选功率电平中的每一个处的错误率相关联的功能的数据点和对应于数据点的行。 图形显示产生数据点和相应行的视觉图。

    Automated system and method for determining the sensitivity of optical components
    6.
    发明授权
    Automated system and method for determining the sensitivity of optical components 有权
    用于确定光学元件灵敏度的自动化系统和方法

    公开(公告)号:US07161666B2

    公开(公告)日:2007-01-09

    申请号:US10954534

    申请日:2004-09-29

    IPC分类号: G01N21/00

    CPC分类号: G01M11/33

    摘要: A system and method for testing the sensitivity of optical components comprises providing an optical testing unit which measures the sensitivity of an optical device under test (DUT). The optical testing unit includes an optical transmitter, which transmits an optical test signal that is transmitted to the DUT; an optical receiver, which receives an input signal from the DUT; a graphical user interface, which provides an interface with a user; and a controller, selectively coupled to the transmitter, the receiver and the graphical user interface, wherein the controller provides a central control of the transmitter, the receiver and the graphical user interface.

    摘要翻译: 用于测试光学部件的灵敏度的系统和方法包括提供测量被测光学器件(DUT)的灵敏度的光学测试单元。 光学测试单元包括光发射机,其发送传输到DUT的光学测试信号; 光接收器,其接收来自DUT的输入信号; 图形用户界面,其提供与用户的接口; 以及选择性地耦合到发射机,接收机和图形用户界面的控制器,其中控制器提供发射机,接收机和图形用户界面的中央控制。

    Voltage control of optical receiver bandwidth
    7.
    发明授权
    Voltage control of optical receiver bandwidth 失效
    光接收机带宽的电压控制

    公开(公告)号:US06624918B1

    公开(公告)日:2003-09-23

    申请号:US09349570

    申请日:1999-07-08

    IPC分类号: H04B1006

    CPC分类号: H04B10/6932 H04J14/0221

    摘要: An optical receiver is formed to include a digitally-controlled preamplifier that is used to adjust the bandwidth of the receiver. A measured bandwidth of the receiver is compared to a desired bandwidth and a digital control signal (such as a voltage, current, or any other appropriate parameter) supplied to the preamplifier is thereafter adjusted (either increased or decreased) to increase/decrease the bandwidth of the receiver to the desired value. A voltage regulator and potentiometer may be used as the digital controller and coupled to the input voltage supply of the preamplifier to provide the needed adjustment in voltage.

    摘要翻译: 光接收器被形成为包括用于调整接收器的带宽的数字控制前置放大器。 将接收机的测量带宽与期望的带宽进行比较,然后调整(增加或减小)提供给前置放大器的数字控制信号(例如电压,电流或任何其他适当的参数)以增加/减少带宽 的接收机到所需的值。 可以使用电压调节器和电位计作为数字控制器并耦合到前置放大器的输入电压源,以提供所需的电压调节。

    Method, system, and computer program product for offline advertisement servicing and cycling
    8.
    发明授权
    Method, system, and computer program product for offline advertisement servicing and cycling 有权
    方法,系统和计算机程序产品,用于离线广告服务和循环

    公开(公告)号:US08135803B2

    公开(公告)日:2012-03-13

    申请号:US10923019

    申请日:2004-08-23

    IPC分类号: G06F15/16

    摘要: Methods, systems, apparatuses, and computer program products for servicing advertisements for offline display on mobile devices are provided. In a first aspect, a channel is received at a mobile device server from one or more providers, including a first web page, an advertiser web page, and an advertisement image file. The received channel is transmitted to the mobile device. In an offline mode, when displayed, the first web page includes an image contained by the advertisement image file. A user viewing the first web page on the mobile device can select the displayed image of the advertisement image file to traverse a link to cause the advertiser page to be displayed on the mobile device. In another aspect, a plurality of advertisement image files are received and stored at a mobile device. The display of the advertisement images on a first web page is cycled each time the first web page is displayed on the mobile device.

    摘要翻译: 提供了用于在移动设备上进行离线显示的广告服务的方法,系统,设备和计算机程序产品。 在第一方面,在移动设备服务器处从包括第一网页,广告主网页和广告图像文件的一个或多个提供者接收频道。 接收到的信道被发送到移动设备。 在脱机模式下,当显示时,第一网页包括由广告图像文件包含的图像。 在移动设备上观看第一网页的用户可以选择广告图像文件的显示图像来遍历链接,以使广告主页面显示在移动设备上。 在另一方面,多个广告图像文件被接收并存储在移动设备处。 每当第一网页在移动设备上显示时,第一网页上的广告图像的显示被循环。