公开(公告)号：US07586378B2

公开(公告)日：2009-09-08

申请号：US11831399

申请日：2007-07-31

申请人： Jared Welz ,  Brima Babatunde Ibrahim ,  Stephen Wu

发明人： Jared Welz ,  Brima Babatunde Ibrahim ,  Stephen Wu

IPC分类号： H03L7/08

CPC分类号： H03L7/085 ,  H03L7/181

摘要： Aspects of a method and system for using a frequency locked loop LOGEN in oscillator systems may include generating an oscillating signal via one or more circuits comprising a feedback loop. The generation may be controlled by enabling or disabling the feedback loop, based on the generated oscillating signal. The one or more circuits may comprise a frequency-locked loop (FLL) that may enable the generation of the oscillating signal. The frequency-locked loop may comprise a voltage-controlled oscillator. The feedback loop may be disabled when an estimated frequency difference between a reference signal and a feedback signal may be less than or equal to a specified threshold. The feedback loop may be enabled when an estimated frequency difference between a reference signal and a feedback signal may be greater than a particular threshold.

摘要翻译： 在振荡器系统中使用频率锁定环路LOGEN的方法和系统的方面可以包括经由包括反馈回路的一个或多个电路产生振荡信号。 可以基于产生的振荡信号来启用或禁用反馈回路来控制一代。 一个或多个电路可以包括可以产生振荡信号的频率锁定环（FLL）。 频率锁定环路可以包括压控振荡器。 当参考信号和反馈信号之间的估计频率差可以小于或等于指定阈值时，可以禁用反馈环路。 当参考信号和反馈信号之间的估计频率差可能大于特定阈值时，可以使能反馈回路。

公开(公告)号：US20080231375A1

公开(公告)日：2008-09-25

申请号：US11831399

申请日：2007-07-31

申请人： Jared Welz ,  Brima Babatunde Ibrahim ,  Stephen Wu

发明人： Jared Welz ,  Brima Babatunde Ibrahim ,  Stephen Wu

IPC分类号： H03L7/00

CPC分类号： H03L7/085 ,  H03L7/181

摘要： Aspects of a method and system for using a frequency locked loop LOGEN in oscillator systems may include generating an oscillating signal via one or more circuits comprising a feedback loop. The generation may be controlled by enabling or disabling the feedback loop, based on the generated oscillating signal. The one or more circuits may comprise a frequency-locked loop (FLL) that may enable the generation of the oscillating signal. The frequency-locked loop may comprise a voltage-controlled oscillator. The feedback loop may be disabled when an estimated frequency difference between a reference signal and a feedback signal may be less than or equal to a specified threshold. The feedback loop may be enabled when an estimated frequency difference between a reference signal and a feedback signal may be greater than a particular threshold.

摘要翻译： 在振荡器系统中使用频率锁定环路LOGEN的方法和系统的方面可以包括经由包括反馈回路的一个或多个电路产生振荡信号。 可以基于产生的振荡信号来启用或禁用反馈回路来控制一代。 一个或多个电路可以包括可以产生振荡信号的频率锁定环（FLL）。 频率锁定环路可以包括压控振荡器。 当参考信号和反馈信号之间的估计频率差可以小于或等于指定阈值时，可以禁用反馈环路。 当参考信号和反馈信号之间的估计频率差可能大于特定阈值时，可以使能反馈回路。

公开(公告)号：US20110150047A1

公开(公告)日：2011-06-23

申请号：US12643494

申请日：2009-12-21

申请人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

发明人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

IPC分类号： H04B1/707

CPC分类号： H04B1/707

摘要： A direct-sequence spread spectrum (DSSS) receiver may be operable to process signal samples in frequency domain utilizing a prime factor fast Fourier transform (FFT) circuit and a pseudorandom noise (PRN) code. The DSSS receiver may be operable to transform the signal samples into FFT signal samples using the prime factor FFT circuit, transform the PRN code into a FFT PRN code using the prime factor FFT circuit and multiply the FFT signal samples with the FFT PRN code using the prime factor FFT circuit. The DSSS receiver may be operable to inversely transform the multiplied FFT signal samples into correlated signal samples using a prime factor inverse FFT (IFFT) implemented by the prime factor FFT circuit. The prime factor FFT circuit may comprise a prime length FFT core, a FFT memory, a register bank, a switch, a multiplier and a FFT controller.

摘要翻译： 直接序列扩频（DSSS）接收机可以用于利用素数因子快速傅立叶变换（FFT）电路和伪随机噪声（PRN）码来处理频域中的信号样本。 DSSS接收机可以用于使用素数FFT电路将信号样本变换成FFT信号样本，使用素数FFT电路将PRN码变换成FFT PRN码，并使用FFT PRN码将FFT信号样本与FFT PRN码相乘 素因子FFT电路。 DSSS接收机可以使用由素数因子FFT电路实现的素因子逆FFT（IFFT）将乘法的FFT信号样本反相变换为相关的信号样本。 素因子FFT电路可以包括素数FFT核心，FFT存储器，寄存器组，开关，乘法器和FFT控制器。

公开(公告)号：US08294612B2

公开(公告)日：2012-10-23

申请号：US13206341

申请日：2011-08-09

申请人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

发明人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

IPC分类号： G01S19/21 ,  G01S19/24

CPC分类号： G01S19/21

摘要： A global navigation satellite system (GNSS) enabled mobile device may be operable to assert one of autoblank signals when RF interference is detected in received GNSS signals for one of consecutive first time windows. The asserted autoblank signals are monitored by the GNSS enabled mobile device over time intervals corresponding to consecutive second time windows and a rate at which the autoblank signals are asserted for each of the consecutive second time windows is determined by the GNSS enabled mobile device based on the monitoring. The GNSS enabled mobile device may be operable to determine whether to blank processing of the received GNSS signals based on the determined rate. The autoblank signals may be asserted by the GNSS enabled mobile device based on a number of the received GNSS signals whose absolute signal levels exceed a signal level threshold for the first time window.

摘要翻译： 当在连续的第一时间窗口之一的接收的GNSS信号中检测到RF干扰时，启用全球导航卫星系统（GNSS）的移动设备可以用于断言自动白名单信号之一。 由所启动的自动空白信号由对应于连续的第二时间窗口的时间间隔由支持GNSS的移动设备监视，并且针对连续的第二时间窗口中的每个连续的第二时间窗口的自动白名单信号的速率由基于GNSS的移动设备确定 监控。 支持GNSS的移动设备可以用于基于所确定的速率来确定是否对所接收的GNSS信号进行空白处理。 可以由支持GNSS的移动设备基于其绝对信号电平超过第一时间窗口的信号电平门限的接收的GNSS信号的数量来确定自动银行信号。

公开(公告)号：US20110291888A1

公开(公告)日：2011-12-01

申请号：US13206341

申请日：2011-08-09

申请人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

发明人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

IPC分类号： G01S19/21

CPC分类号： G01S19/21

摘要： A global navigation satellite system (GNSS) enabled mobile device may be operable to assert one of autoblank signals when RF interference is detected in received GNSS signals for one of consecutive first time windows. The asserted autoblank signals are monitored by the GNSS enabled mobile device over time intervals corresponding to consecutive second time windows and a rate at which the autoblank signals are asserted for each of the consecutive second time windows is determined by the GNSS enabled mobile device based on the monitoring. The GNSS enabled mobile device may be operable to determine whether to blank processing of the received GNSS signals based on the determined rate. The autoblank signals may be asserted by the GNSS enabled mobile device based on a number of the received GNSS signals whose absolute signal levels exceed a signal level threshold for the first time window.

摘要翻译： 当在连续的第一时间窗口之一的接收的GNSS信号中检测到RF干扰时，启用全球导航卫星系统（GNSS）的移动设备可以用于断言自动白名单信号之一。 由所启动的自动空白信号由对应于连续的第二时间窗口的时间间隔由支持GNSS的移动设备监视，并且针对连续的第二时间窗口中的每个连续的第二时间窗口的自动白名单信号的速率由基于GNSS的移动设备确定 监控。 支持GNSS的移动设备可以用于基于所确定的速率来确定是否对所接收的GNSS信号进行空白处理。 可以由支持GNSS的移动设备基于其绝对信号电平超过第一时间窗口的信号电平门限的接收的GNSS信号的数量来确定自动银行信号。

公开(公告)号：US07994975B2

公开(公告)日：2011-08-09

申请号：US12573952

申请日：2009-10-06

申请人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

发明人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

IPC分类号： G01S19/21 ,  G01S19/24

CPC分类号： G01S19/21

摘要： A global navigation satellite system (GNSS) enabled mobile device may be operable to monitor and determine counts at which autoblank signals are asserted over time intervals corresponding to consecutive time windows during the RF interference mitigation process using autoblanking. The GNSS enabled mobile device may be operable to disable the generation of a blank signal when the count may be greater than a particular count threshold at the end of the time window. The GNSS enabled mobile device may be operable to enable the generation of a blank signal when the count may be less than or equal to a particular count threshold at the end of the time window. The blank signals may be used to blank the processing of the received GNSS signals.

摘要翻译： 使用全球导航卫星系统（GNSS）的移动设备可以可操作地监视和确定在使用自动白平衡的RF干扰减轻过程期间对应于连续时间窗口的时间间隔断言自动白名单信号的计数。 当在时间窗口结束时计数可能大于特定计数阈值时，启用GNSS的移动设备可以可操作地禁用生成空白信号。 当能够在时间窗口结束时计数可以小于或等于特定的计数阈值时，支持GNSS的移动设备可以可操作来实现空白信号的产生。 空白信号可以用于消除所接收的GNSS信号的处理。

公开(公告)号：US08611397B2

公开(公告)日：2013-12-17

申请号：US12643494

申请日：2009-12-21

申请人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

发明人： Charles Norman ,  Andreas Warloe ,  Charles Abraham ,  Jared Welz

IPC分类号： H04B1/00

CPC分类号： H04B1/707

摘要： A direct-sequence spread spectrum (DSSS) receiver may be operable to process signal samples in frequency domain utilizing a prime factor fast Fourier transform (FFT) circuit and a pseudorandom noise (PRN) code. The DSSS receiver may be operable to transform the signal samples into FFT signal samples using the prime factor FFT circuit, transform the PRN code into a FFT PRN code using the prime factor FFT circuit and multiply the FFT signal samples with the FFT PRN code using the prime factor FFT circuit. The DSSS receiver may be operable to inversely transform the multiplied FFT signal samples into correlated signal samples using a prime factor inverse FFT (IFFT) implemented by the prime factor FFT circuit. The prime factor FFT circuit may comprise a prime length FFT core, a FFT memory, a register bank, a switch, a multiplier and a FFT controller.

摘要翻译： 直接序列扩频（DSSS）接收机可以用于利用素数因子快速傅立叶变换（FFT）电路和伪随机噪声（PRN）码来处理频域中的信号样本。 DSSS接收机可以用于使用素数FFT电路将信号样本变换成FFT信号样本，使用素数FFT电路将PRN码变换成FFT PRN码，并使用FFT PRN码将FFT信号样本与FFT PRN码相乘 素因子FFT电路。 DSSS接收机可以使用由素数因子FFT电路实现的素因子逆FFT（IFFT）将乘法的FFT信号样本反相变换为相关的信号样本。 素因子FFT电路可以包括素数FFT核心，FFT存储器，寄存器组，开关，乘法器和FFT控制器。

公开(公告)号：US20110080319A1

公开(公告)日：2011-04-07

申请号：US12573952

申请日：2009-10-06

申请人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

发明人： Charles Abraham ,  Kambiz Shoarinejad ,  Jared Welz

IPC分类号： G01S19/21

CPC分类号： G01S19/21

摘要： A global navigation satellite system (GNSS) enabled mobile device may be operable to monitor and determine counts at which autoblank signals are asserted over time intervals corresponding to consecutive time windows during the RF interference mitigation process using autoblanking. The GNSS enabled mobile device may be operable to disable the generation of a blank signal when the count may be greater than a particular count threshold at the end of the time window. The GNSS enabled mobile device may be operable to enable the generation of a blank signal when the count may be less than or equal to a particular count threshold at the end of the time window. The blank signals may be used to blank the processing of the received GNSS signals.

摘要翻译： 使用全球导航卫星系统（GNSS）的移动设备可以可操作地监视和确定在使用自动白平衡的RF干扰减轻过程期间对应于连续时间窗口的时间间隔断言自动白名单信号的计数。 当在时间窗口结束时计数可能大于特定计数阈值时，启用GNSS的移动设备可以可操作地禁用生成空白信号。 当能够在时间窗口结束时计数可以小于或等于特定的计数阈值时，支持GNSS的移动设备可以可操作来实现空白信号的产生。 空白信号可以用于消除所接收的GNSS信号的处理。

公开(公告)号：US20070291883A1

公开(公告)日：2007-12-20

申请号：US11452824

申请日：2006-06-14

申请人： Jared Welz ,  Henrik Jensen

发明人： Jared Welz ,  Henrik Jensen

IPC分类号： H04B1/10

CPC分类号： H04B1/30 ,  H03D3/009

摘要： Various embodiments are disclosed relating to a wireless transceiver. In an example embodiment, a method of compensating for phase imbalance and amplitude imbalance between corresponding in-phase signals and quadrature-phase signals includes providing a plurality of test tones of various frequencies to a receiver and determining, for each of the test tones, a respective phase imbalance and a respective amplitude imbalance between an in-phase (I) signal and a quadrature-phase (Q) signal of the test tone. The example method also includes determining a set of filter coefficients based on the determined phase and amplitude imbalances of the plurality of test tones and applying the set of filter coefficients to a plurality of filters. In the example method, a phase imbalance between an I signal and a Q signal of a received wireless signal is compensated for using a first filter of the plurality of filters. Further, an amplitude imbalance between the I and Q signals of the received wireless signal is compensated for using a second filter of the plurality of filters.

摘要翻译： 公开了关于无线收发器的各种实施例。 在示例性实施例中，补偿相应同步信号和正交相位信号之间的相位不平衡和幅度不平衡的方法包括向接收机提供各种频率的多个测试音调并且为每个测试音调确定一个 相位不平衡和测试音的同相（I）信号和正交相位（Q）信号之间的相应振幅不平衡。 该示例性方法还包括基于所确定的多个测试音调的相位和幅度不平衡以及将该组滤波器系数应用于多个滤波器来确定一组滤波器系数。 在示例性方法中，使用多个滤波器的第一滤波器来补偿接收到的无线信号的I信号和Q信号之间的相位不平衡。 此外，使用多个滤波器的第二滤波器来补偿所接收的无线信号的I信号和Q信号之间的幅度不平衡。

公开(公告)号：US08321169B2

公开(公告)日：2012-11-27

申请号：US13085407

申请日：2011-04-12

申请人： Todd Brooks ,  Vinay Chandrasekhar ,  Josephus Van Engelen ,  Jared Welz

发明人： Todd Brooks ,  Vinay Chandrasekhar ,  Josephus Van Engelen ,  Jared Welz

IPC分类号： G01K15/00 ,  G06F19/00

CPC分类号： G01R19/2506 ,  G01K7/32

摘要： Aspects of a method and system for compensating temperature readings from a temperature sensing crystal integrated circuit are provided. An electronic device may digitize a temperature indication received from a temperature sensing circuit, digitize one or more calibration voltages received from said temperature sensing circuit, and calculate a compensated temperature indication utilizing the digitized calibration voltage(s), and the digitized temperature indication, and data from a table that characterizes behavior of the temperature sensing circuit as a function of temperature. One or more circuits in the electronic device may be controlled based on the compensated temperature indication. The compensated temperature indication may compensate for a gain error and/or offset error of a digital to analog converter that digitizes the temperature indication and the calibration voltage(s). There may be two calibration voltages.

摘要翻译： 提供了用于补偿来自温度感测晶体集成电路的温度读数的方法和系统的方面。 电子设备可以数字化从温度检测电路接收的温度指示，数字化从所述温度检测电路接收的一个或多个校准电压，并且使用数字化校准电压和数字化温度指示来计算补偿温度指示，以及 来自表格的数据表示温度感测电路的行为作为温度的函数。 可以基于补偿的温度指示来控制电子设备中的一个或多个电路。 补偿温度指示可以补偿数字化温度指示和校准电压的数模转换器的增益误差和/或偏移误差。 可能有两个校准电压。