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1.发明授权Method and apparatus for compensating DC level in an adaptive radio receiver 失效用于在自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：US07684775B2
公开(公告)日：2010-03-23
申请号：US11601897
申请日：2006-11-20
IPC分类号： H04B1/10
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，暂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，估计的电压是预定的并且基于 将状态更改为第一个组件块。 还描述了一种用于实施本发明的方法。
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2.发明授权Method and apparatus for compensating DC level in an adaptive radio receiver 失效用于在自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：US07139542B2
公开(公告)日：2006-11-21
申请号：US10378172
申请日：2003-03-03
IPC分类号： H04B1/10
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。
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3.发明授权Method and apparatus for reducing power consumption in transceivers in wireless communications systems having a power control loop 有权具有功率控制回路的无线通信系统中用于降低收发器功耗的方法和装置公开(公告)号：US06647273B2
公开(公告)日：2003-11-11
申请号：US10034837
申请日：2001-12-28
IPC分类号： H04B700
CPC分类号： H04W52/54 , H04W52/287 , H04W52/288
摘要： An apparatus (100) and corresponding method for use by a first transceiver in saving power when communicating over a wireless communication system with a second transceiver, the first having an operating cycle including an interval in which it sends transmit power requests to the second, the transmit power requests being made based on measurements of the signal received by the first and performed in an interval of the operating cycle in which the operational parameters correspond to a power control measurement state. The method includes: when no power control measurements are being made, a step (44b) of enabling receiver tuning to adjust the receiver operational parameters to place the receiver in a less power-consuming internal state.
摘要翻译： 一种用于在通过无线通信系统与第二收发器进行通信时由第一收发器使用的装置（100）和相应的方法，其中所述装置（100）和相应的方法用于在通过无线通信系统进行通信时节省功率，所述装置（100） 基于由所述第一信号接收的信号的测量值发送功率请求，并且在所述操作周期的间隔中执行，其中所述操作参数对应于功率控制测量状态。 该方法包括：当没有进行功率控制测量时，使得接收机调谐的步骤（44b）能够调整接收机操作参数以将接收机置于更少功耗的内部状态。
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公开(公告)号：US06646449B2
公开(公告)日：2003-11-11
申请号：US10034643
申请日：2001-12-28
IPC分类号： G01R2320
CPC分类号： H04B1/1027 , H04B1/109
摘要： An intermodulation detector (11) that operates standalone or in parallel with a radio receiver (10) of a radio receiver system (100) including a receiver tuning logic module (12), and, in the case of operating standalone, provides signals conveying information about intermodulation power in the receiver frequency band, and in case of operating in parallel with a radio receiver (10), provides to the receiver tuning logic module signals conveying information about power aliasing into the frequency band to which the radio receiver is tuned.
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5.发明授权公开(公告)号：US07299021B2
公开(公告)日：2007-11-20
申请号：US10243331
申请日：2002-09-13
IPC分类号： H04B17/00
CPC分类号： H04B1/109
摘要： Methods and apparatus are disclosed for operating a RF receiver. The method executes, during operation of the RF receiver, by periodically determining existing RF receiver operational conditions; determining RF receiver performance requirements based at least in part on the determined existing RF receiver operational conditions; and by allocating power consumption between RF receiver functional blocks in accordance with the determined RF receiver performance requirements and in accordance with a behavior model of at least one of the RF receiver as a whole and individual functional blocks of the RF receiver. The method may also monitor the resulting RF receiver signal quality to determine if allocation of power consumption has resulted in an optimum allocation of the power consumption.
摘要翻译： 公开了用于操作RF接收器的方法和装置。 该方法在RF接收机的操作期间通过周期性地确定现有RF接收器的操作条件来执行; 至少部分地基于所确定的现有RF接收机操作条件确定RF接收机性能要求; 并且根据确定的RF接收机性能要求并根据RF接收机作为整体的至少一个的行为模型和RF接收机的各个功能块来分配RF接收机功能块之间的功耗。 该方法还可以监视所得的RF接收机信号质量，以确定功耗的分配是否已经导致功率消耗的最佳分配。
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公开(公告)号：US07812751B2
公开(公告)日：2010-10-12
申请号：US11904510
申请日：2007-09-26
IPC分类号： H03M1/66
摘要： The invention relates to a device and a method for converting a digital signal having a plurality of data-bits into a filtered analog signal. A device according to the invention includes a delay element arranged to produce one or more differently delayed version of the digital signal and a digital-to-analog conversion circuitry arranged to convert the digital signal and the one or more differently delayed, and possibly differently scaled, versions of the digital signal into analog signals and to produce the filtered analog signal as a combination of the analog signals. Therefore, the device constitutes not only a digital-to-analog-converter but also a finite impulse response filter.
摘要翻译： 本发明涉及一种用于将具有多个数据位的数字信号转换为经滤波的模拟信号的装置和方法。 根据本发明的装置包括布置成产生数字信号的一个或多个不同延迟版本的延迟元件和被配置为转换数字信号和一个或多个不同延迟且可能不同的缩放的数模转换电路 ，将数字信号的版本转换成模拟信号，并产生滤波后的模拟信号作为模拟信号的组合。 因此，器件不仅构成了数模转换器，而且构成了有限的脉冲响应滤波器。
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公开(公告)号：US06833769B2
公开(公告)日：2004-12-21
申请号：US10394463
申请日：2003-03-21
申请人： Pauli Seppinen , Juha Hallivuori , Aarno Pärssinen
发明人： Pauli Seppinen , Juha Hallivuori , Aarno Pärssinen
IPC分类号： H03B104
CPC分类号： B82Y25/00 , C23F4/00 , H03B5/1243 , H03B5/1253 , H03B5/1265 , H03B5/1293 , H03J2200/36
摘要： A voltage-controlled oscillator includes a resonator circuit and a voltage source. The resonator circuit includes a capacitive circuit that has a plurality of analog voltage controlled capacitive elements coupled to one another. The voltage source is coupled to the resonator circuit and provides a voltage to the plurality of analog voltage controlled capacitive elements. Each of the plurality of analog voltage controlled capacitive elements is activated as a function of the voltage thereby increasing linearity of a frequency tuning voltage parameter of the resonator.
摘要翻译： 压控振荡器包括谐振器电路和电压源。 谐振器电路包括具有彼此耦合的多个模拟电压控制的电容元件的电容电路。 电压源耦合到谐振器电路，并向多个模拟电压控制的电容元件提供电压。 多个模拟电压控制电容元件中的每一个被激活为电压的函数，由此增加谐振器的频率调谐电压参数的线性度。
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公开(公告)号：US20060160510A1
公开(公告)日：2006-07-20
申请号：US11361172
申请日：2006-02-23
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.
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公开(公告)号：US20060291549A1
公开(公告)日：2006-12-28
申请号：US11169284
申请日：2005-06-27
IPC分类号： H04B17/00
CPC分类号： H04B17/21
摘要： The present invention provides a method for automatic calibration of a signal path in receivers (e.g., radio frequency receivers) using a noise (and not a specific test signal) as a source and a fast Fourier transform (FFT) of the noise for correcting various parameters related to an inphase/quadrature (I/Q) imbalance in a frequency domain. The present invention (method and apparatus) can provide detecting and correcting an I/Q phase error, an I/Q amplitude error, an absolute corner frequency of the analog baseband filter, and a relative corner frequency of the analog baseband filters just by using the noise as a stimuli. This calibration can be used for a factory calibration or it can be used as an on-site calibration for base stations. Mobile devices can calibrate themselves independently of their location. This reduces the requirements for the test equipment in the manufacturing and maintenance stages.
摘要翻译： 本发明提供一种使用噪声（而不是特定的测试信号）作为源的接收机（例如，射频接收机）中的信号路径的自动校准和用于校正各种噪声的噪声的快速傅里叶变换（FFT）的方法 与频域中的同相/正交（I / Q）不平衡相关的参数。 本发明（方法和装置）可以提供检测和校正I / Q相位误差，I / Q振幅误差，模拟基带滤波器的绝对转角频率以及模拟基带滤波器的相对转角频率，只需使用 噪音作为刺激。 该校准可用于工厂校准，也可用作基站的现场校准。 移动设备可以独立于他们的位置进行自我校准。 这减少了制造和维护阶段对测试设备的要求。
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公开(公告)号：US07453934B2
公开(公告)日：2008-11-18
申请号：US11169284
申请日：2005-06-27
IPC分类号： H04B17/00
CPC分类号： H04B17/21
摘要： The present invention provides a method for automatic calibration of a signal path in receivers (e.g., radio frequency receivers) using a noise (and not a specific test signal) as a source and a fast Fourier transform (FFT) of the noise for correcting various parameters related to an inphase/quadrature (I/Q) imbalance in a frequency domain. The present invention (method and apparatus) can provide detecting and correcting an I/Q phase error, an I/Q amplitude error, an absolute corner frequency of the analog baseband filter, and a relative corner frequency of the analog baseband filters just by using the noise as a stimuli. This calibration can be used for a factory calibration or it can be used as an on-site calibration for base stations. Mobile devices can calibrate themselves independently of their location. This reduces the requirements for the test equipment in the manufacturing and maintenance stages.
摘要翻译： 本发明提供一种使用噪声（而不是特定的测试信号）作为源的接收机（例如，射频接收机）中的信号路径的自动校准和用于校正各种噪声的噪声的快速傅里叶变换（FFT）的方法 与频域中的同相/正交（I / Q）不平衡相关的参数。 本发明（方法和装置）可以提供检测和校正I / Q相位误差，I / Q振幅误差，模拟基带滤波器的绝对转角频率以及模拟基带滤波器的相对转角频率，只需使用 噪音作为刺激。 该校准可用于工厂校准，也可用作基站的现场校准。 移动设备可以独立于他们的位置进行自我校准。 这减少了制造和维护阶段对测试设备的要求。
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