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31.发明申请Digital-to-radio frequency conversion device, chip set, transmitter, user terminal and data processing method 有权数字到射频变频设备，芯片组，发射机，用户终端和数据处理方法公开(公告)号：US20070182617A1
公开(公告)日：2007-08-09
申请号：US11348837
申请日：2006-02-07
申请人： Petri Eloranta , Pauli Seppinen
发明人： Petri Eloranta , Pauli Seppinen
IPC分类号： H03M1/12
CPC分类号： H04B1/30 , H03C1/50 , H04L27/361
摘要： The invention relates to a device for digital-to-radio frequency conversion, the device comprising: conversion cell matrices for digital-to-radio frequency conversion; means for providing a digital data signal; means for dividing the digital data signal into data signal groups; means for generating clock signals, the clock signals having different phases, the number of clock signals being the same as the number of data signal groups; means for synchronizing the data signal groups by using the clock signals; means for conveying the synchronized data signal groups to the conversion cell matrices, the number of conversion cell matrices being the same as the number of data signal groups; and means for synchronizing each conversion cell matrix by using the clock signal with which the synchronized data signal group conveyed thereto was synchronized for generating interpolation values.
摘要翻译： 本发明涉及一种用于数字到无线电频率转换的装置，该装置包括：用于数字到无线电频率转换的转换单元矩阵; 用于提供数字数据信号的装置; 用于将数字数据信号分成数据信号组的装置; 用于产生时钟信号的装置，时钟信号具有不同的相位，时钟信号的数量与数据信号组的数量相同; 用于通过使用时钟信号来同步数据信号组的装置; 用于将同步的数据信号组传送到转换单元矩阵的装置，转换单元矩阵的数量与数据信号组的数量相同; 以及用于通过使用与其传送的同步数据信号组同步的时钟信号来同步每个转换单元矩阵的装置，用于产生内插值。
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32.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。
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33.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。
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公开(公告)号：US20050191976A1
公开(公告)日：2005-09-01
申请号：US11118883
申请日：2005-04-29
CPC分类号： H03F3/24 , H03C3/40 , H03F1/0222 , H03F2200/331 , H03M1/0682 , H03M1/682 , H03M1/687 , H03M1/745 , H03M1/747 , H04B1/0483 , H04L27/361 , H04L27/362
摘要： An RF transmitter uses two digital-to-RF conversion modules to convert digital baseband signals into RF signals. In Cartesian mode, baseband signals are conveyed to the conversion modules for RF conversion. In polar mode, baseband signals are converted into amplitude and phase data parts. Phase data part is converted into I and Q data parts to be converted by the conversion modules into RF signals, which are modulated in a power amplifier by amplitude data part through the power supply of the power amplifier. Each digital-to-RF module uses parallel unit cells to perform D/A conversion function and upconversion function by an IF signal. Each unit cell, adapted to receive a control voltage indicative of a data signal value, is a mixer cell type converter having a differential data switch section connected in series to a differential LO-switch pair. LO-switch is further connected in series to a current source.
摘要翻译： RF发射器使用两个数字到RF转换模块将数字基带信号转换为RF信号。 在笛卡尔模式中，基带信号被传送到转换模块进行RF转换。 在极坐标模式中，基带信号被转换为幅度和相位数据部分。 相位数据部分被转换为将由转换模块转换成的RF信号的I和Q数据部分，其通过功率放大器的电源由幅度数据部分在功率放大器中调制。 每个数字至RF模块使用并行单元单元通过IF信号执行D / A转换功能和上变频功能。 适于接收指示数据信号值的控制电压的每个单元是具有与差动LO开关对串联的差分数据开关部分的混频器单元型转换器。 LO开关进一步串联连接到电流源。
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公开(公告)号：US06639474B2
公开(公告)日：2003-10-28
申请号：US10024084
申请日：2001-12-17
申请人： Kalle Asikainen , Pauli Seppinen
发明人： Kalle Asikainen , Pauli Seppinen
IPC分类号： H03L708
摘要： The invention relates to a method for tuning an adjustable oscillator, in which oscillator at least one resonance circuit is used. The frequency of the oscillator is adjusted by changing the resonance frequency of the at least one resonance circuit by means of a control signal for which a minimum value and a maximum value are selected. In the method at least one target value is selected for the control signal, the frequency of the adjustable oscillator is adjusted to substantially correspond to the target value and the value of the control signal and the target value are compared. When the value of the control signal is substantially different from the target value, a tuning signal is produced to change the resonance frequency of the at least one resonance circuit.
摘要翻译： 本发明涉及一种用于调谐可调振荡器的方法，其中振荡器使用至少一个谐振电路。 通过利用选择了最小值和最大值的控制信号来改变至少一个谐振电路的谐振频率来调节振荡器的频率。 在该方法中，为控制信号选择至少一个目标值，将可调节振荡器的频率调整为基本对应于目标值，并比较控制信号和目标值的值。 当控制信号的值与目标值基本上不同时，产生调谐信号以改变至少一个谐振电路的谐振频率。
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