-
公开(公告)号：US08063669B2
公开(公告)日：2011-11-22
申请号：US12291255
申请日：2008-11-06
申请人： Saska Lindfors , Kari Stadius , Liangge Xu , Tapio Rapinoja , Jussi Ryynanen , Risto H. S. Kaunisto , Aarno Parssinen
发明人： Saska Lindfors , Kari Stadius , Liangge Xu , Tapio Rapinoja , Jussi Ryynanen , Risto H. S. Kaunisto , Aarno Parssinen
IPC分类号： H03B21/00
CPC分类号： G06F1/022
摘要： Described is an apparatus that includes a frequency source and a plurality of time domain direct digital synthesizers each having an input connected to an output of the frequency source and an output providing an output frequency signal. A particular time domain direct digital synthesizer includes a sigma-delta modulator that functions as a second order multi-stage noise shaping sigma-delta modulator. In one exemplary embodiment sigma-delta modulator outputs provide a unitary-weighted word used to switch certain unit capacitors that comprise part of a delay modulator to produce a time-varying delay having a time-averaged value that directly corresponds to a binary value appearing on a plurality of phase accumulator outputs.
摘要翻译： 描述了一种装置，其包括频率源和多个时域直接数字合成器，每个时域直接数字合成器具有连接到频率源的输出的输入端和提供输出频率信号的输出。 特定的时域直接数字合成器包括用作二阶多级噪声整形Σ-Δ调制器的Σ-Δ调制器。 在一个示例性实施例中，Σ-Δ调制器输出提供用于切换包括延迟调制器的一部分的某些单位电容器的单位加权字，以产生时变延迟，该时变延迟具有直接对应于出现在 多个相位累加器输出。
-
公开(公告)号：US20100109714A1
公开(公告)日：2010-05-06
申请号：US12291255
申请日：2008-11-06
申请人： Saska Lindfors , Kari Stadius , Liangge Xu , Tapio Rapinoja , Jussi Ryynanen , Risto H.S. Kaunisto , Aarno Parssinen
发明人： Saska Lindfors , Kari Stadius , Liangge Xu , Tapio Rapinoja , Jussi Ryynanen , Risto H.S. Kaunisto , Aarno Parssinen
IPC分类号： H03B21/00
CPC分类号： G06F1/022
摘要： Described is an apparatus that includes a frequency source and a plurality of time domain direct digital synthesizers each having an input connected to an output of the frequency source and an output providing an output frequency signal. A particular time domain direct digital synthesizer includes a sigma-delta modulator that functions as a second order multi-stage noise shaping sigma-delta modulator. In one exemplary embodiment sigma-delta modulator outputs provide a unitary-weighted word used to switch certain unit capacitors that comprise part of a delay modulator to produce a time-varying delay having a time-averaged value that directly corresponds to a binary value appearing on a plurality of phase accumulator outputs.
摘要翻译： 描述了一种装置，其包括频率源和多个时域直接数字合成器，每个时域直接数字合成器具有连接到频率源的输出的输入端和提供输出频率信号的输出。 特定的时域直接数字合成器包括用作二阶多级噪声整形Σ-Δ调制器的Σ-Δ调制器。 在一个示例性实施例中，Σ-Δ调制器输出提供用于切换包括延迟调制器的一部分的某些单位电容器的单位加权字，以产生时变延迟，该时变延迟具有直接对应于出现在 多个相位累加器输出。
-
公开(公告)号：US20080294362A1
公开(公告)日：2008-11-27
申请号：US11978714
申请日：2007-10-30
IPC分类号： G01D18/00
CPC分类号： G01D18/00
摘要： A calibration manager comprises means for receiving information relating to the calibration of at least one component. Means for setting a trigger condition for executing a calibration in dependence on said received information is provided. Means are provided for executing said calibration in dependence on said trigger condition.
摘要翻译： 校准管理器包括用于接收与至少一个组件的校准有关的信息的装置。 提供了用于根据所述接收的信息设置用于执行校准的触发条件的装置。 提供用于根据所述触发条件执行所述校准的装置。
-
4.发明授权Method and apparatus providing calibration technique for RF performance tuning 失效提供RF性能调谐校准技术的方法和设备公开(公告)号：US07203472B2
公开(公告)日：2007-04-10
申请号：US10099626
申请日：2002-03-15
CPC分类号： H04B17/21 , H04B1/30 , H04B17/20 , H04B17/318
摘要： A method is disclosed for operating a RF receiver of a communications equipment, as is circuitry for implementing the method. The method includes, while operating under the control of a data processor of the communications equipment, generating a calibration signal; injecting the calibration signal into a low noise amplifier (LNA) of the RF receiver; measuring a downconverted response of the receiver at a plurality of different frequencies of the calibration signal, or measuring the downconverted response of the receiver at a plurality of different LNA tuning combinations using a fixed calibration frequency, and at least one of tuning a resonance frequency of at least one LNA resonator based on the measured downconverted response so as to compensate at least for variations in component values that comprise the at least one resonator, or adjusting the linearity of the receiver.
摘要翻译： 公开了一种用于操作通信设备的RF接收器的方法，以及用于实现该方法的电路。 该方法包括：在通信设备的数据处理器的控制下运行，产生校准信号; 将校准信号注入RF接收机的低噪声放大器（LNA）; 测量所述接收机在所述校准信号的多个不同频率处的下变频响应，或者使用固定校准频率来测量所述接收机在多个不同LNA调谐组合的下变频响应，以及调谐所述接收机的谐振频率 基于所测量的下变频响应的至少一个LNA谐振器，以便至少补偿构成所述至少一个谐振器的分量值的变化，或者调整所述接收机的线性度。
-
5.发明申请Method and apparatus for compensating DC level in an adaptve radio receiver 失效用于在适应无线电接收机中补偿直流电平的方法和装置公开(公告)号：US20070066260A1
公开(公告)日：2007-03-22
申请号：US11601897
申请日：2006-11-20
CPC分类号： H04B1/30
摘要： A radio frequency receiver 30, 32, includes a first component block 12, 16, 18, 20; a second compensating component block 22, 22a-22b, 34; and control circuitry 26 operable for controlling the state (e.g., load, bias, gain) of the first component block. When the control circuitry 26 causes a change in the state of the first component block that is expected to induce a DC offset in a signal, the control circuitry 26 changes the state of the second component block to compensate for an estimate of the DC offset. Preferably, the second component block is a filter 22, 22a-22b, 34, that temporarily changes from a nominal cutoff frequency to an elevated cutoff frequency so that voltage will settle quickly and accurately at an estimated voltage, the estimated voltage being predetermined and based on the state change to the first component block. A method is also described for practicing the invention.
摘要翻译： 射频接收器30,32包括第一组件块12,16,18,20; 第二补偿部件块22,22a-22b，34; 以及可操作用于控制第一组件块的状态（例如，负载，偏置，增益）的控制电路26。 当控制电路26导致预期在信号中引起DC偏移的第一分量块的状态改变时，控制电路26改变第二分量块的状态以补偿DC偏移的估计。 优选地，第二组件块是过滤器22,22a-22b，34，其临时从标称截止频率改变到提升的截止频率，使得电压将在估计的电压下快速且准确地稳定，所估计的电压是预定的 并且基于对第一组件块的状态改变。 还描述了一种用于实施本发明的方法。
-
公开(公告)号：US20120154092A1
公开(公告)日：2012-06-21
申请号：US12971789
申请日：2010-12-17
申请人： Eira Tuulia SEPPALA , Markku Anttoni Oksanen , Vladimir Alexsandrovich Ermolov , Aarno Parssinen
发明人： Eira Tuulia SEPPALA , Markku Anttoni Oksanen , Vladimir Alexsandrovich Ermolov , Aarno Parssinen
CPC分类号： H01F1/26 , H01F3/08 , Y10T29/49073
摘要： An apparatus including a coil configured to allow a flow of electrical current therethrough to generate a magnetic field, and a composite material configured to increase the strength of the magnetic field relative to that which could be generated by the coil without the composite material, the composite material including a plurality of magnetic particles having a mean maximum dimension of less than 100 nm dispersed within a dielectric binder.
摘要翻译： 一种包括线圈的装置，其被配置为允许电流流过其中以产生磁场;以及复合材料，其被配置为相对于不具有复合材料的线圈可产生的强度增加磁场的强度，复合材料 包括分散在介电粘合剂中的平均最大尺寸小于100nm的多个磁性颗粒的材料。
-
公开(公告)号：US08046184B2
公开(公告)日：2011-10-25
申请号：US11978714
申请日：2007-10-30
IPC分类号： G01D18/00
CPC分类号： G01D18/00
摘要： A calibration manager comprises means for receiving information relating to the calibration of at least one component. Means for setting a trigger condition for executing a calibration in dependence on said received information is provided. Means are provided for executing said calibration in dependence on said trigger condition.
摘要翻译： 校准管理器包括用于接收与至少一个组件的校准有关的信息的装置。 提供了用于根据所述接收的信息设置用于执行校准的触发条件的装置。 提供了用于根据所述触发条件执行所述校准的装置。
-
公开(公告)号：US20080293445A1
公开(公告)日：2008-11-27
申请号：US11892378
申请日：2007-08-22
IPC分类号： H04M1/00
CPC分类号： H04B1/406 , H04B1/0003
摘要： A radio frequency apparatus comprising an interface configured to receive a command from a radio protocol stack. A command generator configured to generate a plurality of commands from said received command is provided. The apparatus also has configurable hardware, said hardware having a configuration which is controlled in dependence on said generated commands and being arranged to at least one of transmit and receive a radio frequency signal.
摘要翻译： 一种射频装置，包括被配置为从无线电协议栈接收命令的接口。 提供了一种被配置为从所述接收的命令生成多个命令的命令生成器。 所述装置还具有可配置的硬件，所述硬件具有根据所述产生的命令进行控制并被配置为发射和接收射频信号中的至少一个的配置。
-
公开(公告)号：US07433708B2
公开(公告)日：2008-10-07
申请号：US10771889
申请日：2004-02-04
申请人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
发明人： Mikko Rinne , Antti Lappetelainen , Pauli Seppinen , Jussi Ojala , Aarno Parssinen , Risto Kaunisto
摘要： A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.
摘要翻译： 一种方法，设备和系统，使用窄带信道来提供更高的重复使用，而不需要乘法器频谱要求。 如果通信系统支持可变载波带宽信道，则窄信道容量可以在相邻小区之间划分以提供较高的重用。
-
公开(公告)号：US08750362B2
公开(公告)日：2014-06-10
申请号：US13289482
申请日：2011-11-04
申请人： Markus Nentwig , Aarno Parssinen
发明人： Markus Nentwig , Aarno Parssinen
CPC分类号： H04L25/03006
摘要： A method, apparatus and computer program product are configured to provide calibration accuracy in an analog filter. In this regard, a method is provided that includes estimating a cutoff frequency for an analog filter. The method further includes causing a filter tuning word to be modified based on the estimated cutoff frequency for the analog filter. The method also includes determining a residual cutoff frequency mismatch for the analog filter. The method also includes causing an equalizer configuration to be selected for a digital filter based on the determined residual cutoff frequency mismatch.
摘要翻译： 方法，装置和计算机程序产品被配置为在模拟滤波器中提供校准精度。 在这方面，提供了一种包括估计模拟滤波器的截止频率的方法。 该方法还包括基于模拟滤波器的估计截止频率来引起滤波器调谐字被修改。 该方法还包括确定模拟滤波器的残余截止频率失配。 该方法还包括基于所确定的残余截止频率失配来为数字滤波器选择均衡器配置。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.012 秒)
