Method and apparatus for directly measuring the phase change of an optical signal
    11.
    发明授权
    Method and apparatus for directly measuring the phase change of an optical signal 失效
    用于直接测量光信号相位变化的方法和装置

    公开(公告)号:US07239396B2

    公开(公告)日:2007-07-03

    申请号:US10942787

    申请日:2004-09-17

    IPC分类号: G01B9/02

    CPC分类号: G01D5/35303 G01M11/33

    摘要: This invention relates to a method and apparatus for measuring the phase change of an output optical signal from a device. In one embodiment an input optical signal is split into first and second optical signals, and the first optical signal is passed through the device while applying an external stimulus to the device, to produce an output optical signal having a phase shift. The carrier frequency of the second optical signal is changed, and the output optical signal and the changed second optical signal are then combined. The combined signal is detected in accordance with the external stimulus applied to the device, and the phase change of the output signal of the device is measured as a function of the external stimulus applied to the device.

    摘要翻译: 本发明涉及一种用于测量来自装置的输出光信号的相位变化的方法和装置。 在一个实施例中,输入光信号被分成第一和第二光信号,并且第一光信号在对器件施加外部刺激时通过器件,以产生具有相移的输出光信号。 改变第二光信号的载波频率,然后组合输出光信号和改变的第二光信号。 根据施加到器件的外部刺激来检测组合信号,并且根据施加到器件的外部刺激来测量器件的输出信号的相位变化。

    METHOD, SYSTEM, AND APPARATUS FOR INTERPOLATING AN OUTPUT OF AN ANALOG-TO-DIGITAL CONVERTER
    12.
    发明申请
    METHOD, SYSTEM, AND APPARATUS FOR INTERPOLATING AN OUTPUT OF AN ANALOG-TO-DIGITAL CONVERTER 有权
    用于插入模拟数字转换器输出的方法,系统和装置

    公开(公告)号:US20110291865A1

    公开(公告)日:2011-12-01

    申请号:US12791694

    申请日:2010-06-01

    IPC分类号: H03M7/00

    摘要: A system, method, and apparatus is disclosed for interpolation of an output of an analog to digital converter (ADC) to enable operation of the ADC at a sampling rate that is independent of the sampling rate for a DSP core so as to efficiently enable operation at higher date rates. According to one of the embodiments, an interpolation circuit is coupled between the ADC and DSP core and receives a first plurality of samples of data at the first data rate from the ADC and supplies a plurality of samples of second data at a second data rate to the DSP core; the second data rate being less than the first data rate. According to one of the embodiments, the interpolation circuit includes a memory and a FIR filter circuit having filter tap coefficient values selected to provide attenuation at high frequencies to reduce aliasing noise.

    摘要翻译: 公开了一种用于对模数转换器(ADC)的输出进行插值的系统,方法和装置,以使得能够以独立于DSP核的采样率的采样速率对ADC进行操作,以便有效地使能操作 以较高的日期率。 根据实施例之一,内插电路耦合在ADC和DSP内核之间,并从ADC接收第一数据速率的第一多个数据采样,并将第二数据的多个样本以第二数据速率提供给 DSP内核; 第二数据速率小于第一数据速率。 根据实施例中的一个,内插电路包括存储器和具有滤波器抽头系数值的FIR滤波器电路,该滤波器抽头系数值被选择以在高频率下提供衰减以减少混叠噪声。

    Adjusting carrier spacing in a channel
    13.
    发明授权
    Adjusting carrier spacing in a channel 有权
    调整通道中的载波间距

    公开(公告)号:US09485049B2

    公开(公告)日:2016-11-01

    申请号:US13853421

    申请日:2013-03-29

    摘要: An optical system may include optical transmitters to provide respective optical signals. Each of the respective optical signals may provide one or more carriers in an optical channel. The optical channel may include multiple carriers associated with the respective optical signals. First and second carriers, of the multiple carriers, may have a particular carrier space width. The particular carrier space width may include a frequency error associated with one or more optical signals of the respective optical signals. The optical system may include a control system to determine the frequency error and cause one or more of the optical transmitters to adjust the particular carrier space width based on the adjusted frequency error.

    摘要翻译: 光学系统可以包括光发射器,以提供相应的光信号。 每个相应的光信号可以在光通道中提供一个或多个载波。 光信道可以包括与相应的光信号相关联的多个载波。 多载波的第一和第二载波可以具有特定载波空间宽度。 特定载波空间宽度可以包括与相应光信号的一个或多个光信号相关联的频率误差。 光学系统可以包括用于确定频率误差的控制系统,并且使得一个或多个光发射机基于调整的频率误差来调整特定载波空间宽度。

    Method, system, and apparatus for interpolating an output of an analog-to-digital converter
    14.
    发明授权
    Method, system, and apparatus for interpolating an output of an analog-to-digital converter 有权
    用于内插模数转换器的输出的方法,系统和装置

    公开(公告)号:US08477056B2

    公开(公告)日:2013-07-02

    申请号:US12791694

    申请日:2010-06-01

    IPC分类号: H03M1/12

    摘要: A system, method, and apparatus is disclosed for interpolation of an output of an analog to digital converter (ADC) to enable operation of the ADC at a sampling rate that is independent of the sampling rate for a DSP core so as to efficiently enable operation at higher date rates. According to one of the embodiments, an interpolation circuit is coupled between the ADC and DSP core and receives a first plurality of samples of data at the first data rate from the ADC and supplies a plurality of samples of second data at a second data rate to the DSP core; the second data rate being less than the first data rate. According to one of the embodiments, the interpolation circuit includes a memory and a FIR filter circuit having filter tap coefficient values selected to provide attenuation at high frequencies to reduce aliasing noise.

    摘要翻译: 公开了一种用于对模数转换器(ADC)的输出进行插值的系统,方法和装置,以使得能够以独立于DSP核的采样率的采样速率对ADC进行操作,以便有效地使能操作 以较高的日期率。 根据实施例之一,内插电路耦合在ADC和DSP内核之间,并从ADC接收第一数据速率的第一多个数据采样,并将第二数据的多个样本以第二数据速率提供给 DSP内核; 第二数据速率小于第一数据速率。 根据实施例中的一个,内插电路包括存储器和具有滤波器抽头系数值的FIR滤波器电路,该滤波器抽头系数值被选择以在高频率下提供衰减以减少混叠噪声。

    SYSTEM AND METHOD FOR HANDLING ACCESS TO MEMORY MODULES
    15.
    发明申请
    SYSTEM AND METHOD FOR HANDLING ACCESS TO MEMORY MODULES 审中-公开
    用于处理存储器模块的系统和方法

    公开(公告)号:US20080162966A1

    公开(公告)日:2008-07-03

    申请号:US11617022

    申请日:2006-12-28

    IPC分类号: G06F1/08

    摘要: A method includes the provision of a list, which identifies a condition of at least one memory module. Attempted access to the at least one memory module is identified. The list is utilized to determine whether or not the at least one memory module is in a first condition. An exception is generated when the at least one memory module is in the first condition. A system includes: a list processing module, configured to identify a condition of the at least one memory module; an access identifying module, configured to identify access to the at least one memory module; a list controlling module, configured to determine whether or not the at least one memory module is in a first condition; and an exception generating module, configured to generate an exception when the at least one memory module is in the first condition.

    摘要翻译: 一种方法包括提供识别至少一个存储器模块的状况的列表。 确定访问至少一个内存模块的访问。 该列表用于确定至少一个存储器模块是否处于第一状态。 当至少一个存储器模块处于第一状态时产生异常。 一种系统,包括:列表处理模块,用于识别所述至少一个存储器模块的状态; 访问识别模块,被配置为识别对所述至少一个存储器模块的访问; 列表控制模块,被配置为确定所述至少一个存储器模块是否处于第一状态; 以及异常生成模块,被配置为当所述至少一个存储器模块处于所述第一状态时产生异常。

    Apparatus and method for route navigation of multiple destinations
    16.
    发明申请
    Apparatus and method for route navigation of multiple destinations 有权
    多个目的地路线导航的装置和方法

    公开(公告)号:US20080103686A1

    公开(公告)日:2008-05-01

    申请号:US11586369

    申请日:2006-10-25

    IPC分类号: G01C21/00

    CPC分类号: G01C21/00

    摘要: An apparatus and method for route navigation for multiple destinations. Route parameters can be received and a route (140, 142) can be generated for multiple destinations (132, 134). An estimated time of arrival can be calculated for each destination. An updated estimated time of arrival can be generated for one of the destinations. A messaging service message including the updated time of arrival can be sent to a recipient (122, 124) associated with the respective destination if the updated time of arrival deviates from the original estimated time of arrival.

    摘要翻译: 一种用于多个目的地的路线导航的装置和方法。 可以接收路由参数,并且可以为多个目的地(132,134)生成路由(140,142)。 可以计算每个目的地的预计到达时间。 可以为其中一个目的地生成更新的到达时间。 如果更新的到达时间偏离原来的预计到达时间,则包括更新的到达时间的消息服务消息可被发送到与相应目的地相关联的接收者(122,124)。

    METHOD FOR MOBILE TO INFORM BASE STATION OF ADDITIONAL GPS CAPABILITIES
    17.
    发明申请
    METHOD FOR MOBILE TO INFORM BASE STATION OF ADDITIONAL GPS CAPABILITIES 有权
    移动通信基站附加GPS功能的方法

    公开(公告)号:US20080090587A1

    公开(公告)日:2008-04-17

    申请号:US11549715

    申请日:2006-10-16

    IPC分类号: H04Q7/20

    摘要: In a method of configuring a mobile communication between a position determination entity and a mobile device, an indication that the mobile device has an ability to perform a positioning system search simultaneously with a communication is sent to the position determination entity. A preferred response quality indicator is set to a state that will allow the mobile device an extended period to provide to a location of the mobile device to the position determination entity when the mobile device has the ability to perform a positioning system search simultaneously with a communication.

    摘要翻译: 在配置位置确定实体和移动设备之间的移动通信的方法中,向位置确定实体发送移动设备具有与通信同时执行定位系统搜索能力的指示。 当移动设备具有与通信同时执行定位系统搜索的能力时,将优选的响应质量指示符设置为允许移动设备延长的时间段向移动设备的位置提供给位置确定实体的状态 。

    System and method for determining the envelope of a modulated signal
    18.
    发明授权
    System and method for determining the envelope of a modulated signal 有权
    用于确定调制信号的包络的系统和方法

    公开(公告)号:US08867930B2

    公开(公告)日:2014-10-21

    申请号:US13282779

    申请日:2011-10-27

    IPC分类号: H04B10/06 H04B17/00 H04L1/20

    摘要: Systems and methods for determining the envelope of a modulated signal using high bandwidth and low bandwidth samples of a hybrid signal. The hybrid signal is obtained by mixing the modulated signal with its carrier signal. The systems and methods of the present disclosure may be suitable for equivalent-time or real-time oscilloscopes.

    摘要翻译: 使用混合信号的高带宽和低带宽采样来确定调制信号的包络的系统和方法。 混合信号通过将调制信号与其载波信号混合而获得。 本公开的系统和方法可适用于等效时间或实时示波器。

    Method, system, and apparatus for blind equalization of BPSK signals
    19.
    发明授权
    Method, system, and apparatus for blind equalization of BPSK signals 有权
    用于BPSK信号盲均衡的方法,系统和装置

    公开(公告)号:US08335440B2

    公开(公告)日:2012-12-18

    申请号:US12791223

    申请日:2010-06-01

    IPC分类号: H04B10/06 H04B10/148

    摘要: A system, method, and apparatus is disclosed for enabling a constant modulus algorithm (CMA) to be reliably used for blind equalization training of an equalizer. According to one embodiment, received signals in a binary phase shift keying (BPSK) format are converted to a quadrature phase shift keying (QPSK) format, to which CMA processing can be reliably applied for equalization. According to another aspect of this embodiment, the equalized QPSK signals are rotated to convert the signals to an equalized BPSK format for output.

    摘要翻译: 公开了一种用于使恒模算法(CMA)可靠地用于均衡器的盲均衡训练的系统,方法和装置。 根据一个实施例,二进制相移键控(BPSK)格式的接收信号被转换成正交相移键控(QPSK)格式,CMA处理可以被可靠地应用于均衡。 根据本实施例的另一方面,均衡的QPSK信号被旋转以将信号转换成均衡的BPSK格式用于输出。

    METHOD, SYSTEM, AND APPARATUS FOR BLIND EQUALIZATION OF BPSK SIGNALS
    20.
    发明申请
    METHOD, SYSTEM, AND APPARATUS FOR BLIND EQUALIZATION OF BPSK SIGNALS 有权
    BPSK信号盲均衡的方法,系统和装置

    公开(公告)号:US20110293289A1

    公开(公告)日:2011-12-01

    申请号:US12791223

    申请日:2010-06-01

    IPC分类号: G06F17/10 H04B10/00

    摘要: A system, method, and apparatus is disclosed for enabling a constant modulus algorithm (CMA) to be reliably used for blind equalization training of an equalizer. According to one embodiment, received signals in a binary phase shift keying (BPSK) format are converted to a quadrature phase shift keying (QPSK) format, to which CMA processing can be reliably applied for equalization. According to another aspect of this embodiment, the equalized QPSK signals are rotated to convert the signals to an equalized BPSK format for output.

    摘要翻译: 公开了一种用于使恒模算法(CMA)可靠地用于均衡器的盲均衡训练的系统,方法和装置。 根据一个实施例,二进制相移键控(BPSK)格式的接收信号被转换成正交相移键控(QPSK)格式,CMA处理可以被可靠地应用于均衡。 根据本实施例的另一方面,均衡的QPSK信号被旋转以将信号转换成均衡的BPSK格式用于输出。