专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009083501A2 A PHASE LOCKED LOOP 审中-公开
标题翻译：相位锁定环
公开(公告)号：WO2009083501A2
公开(公告)日：2009-07-09
申请号：PCT/EP2008/068038
申请日：2008-12-19
申请人： NOKIA CORPORATION , VÄÄNÄNEN, Paavo Sakari , MIKKOLA, Niko Juhani , HEILÖ, Petri Antero , PELTONEN, Janne Olavi , VILHONEN, Sami Tapani
发明人： VÄÄNÄNEN, Paavo Sakari , MIKKOLA, Niko Juhani , HEILÖ, Petri Antero , PELTONEN, Janne Olavi , VILHONEN, Sami Tapani
IPC分类号： H03L7/107 , H03L7/16
CPC分类号： H03L7/099 , H03L7/085 , H03L7/087 , H03L7/107 , H03L2207/50
摘要： A phase locked loop circuit comprising; a digitally controlled oscillator configured to receive a first signal and output a second signal dependent on the first signal and at least one mapping function; a phase comparator configured to receive the second signal and output a third signal dependent on the second signal, a reference signal and at least one phase comparator parameter; a loop filter configured to receive the third signal and generate the first signal dependent on the third signal and at least one filter parameter; and a controller configured to control at least one of: the at least one mapping function; the at least one phase comparator parameter; and the at least one filter parameter.
摘要翻译：一种锁相环电路，包括：数字控制振荡器，被配置为接收第一信号并输出取决于第一信号和至少一个映射函数的第二信号; 相位比较器，被配置为接收第二信号并输出取决于第二信号的第三信号，参考信号和至少一个相位比较器参数; 环路滤波器，被配置为接收所述第三信号并根据所述第三信号和至少一个滤波器参数产生所述第一信号; 以及控制器，被配置为控制所述至少一个映射函数中的至少一个; 所述至少一个相位比较器参数; 和至少一个滤波器参数。

2. 发明申请

WO2009027581A1 SIGNAL AMPLIFIER STRUCTURE FOR RADIO TRANSMITTER 审中-公开
标题翻译：无线电发射机的信号放大器结构
公开(公告)号：WO2009027581A1
公开(公告)日：2009-03-05
申请号：PCT/FI2008/050472
申请日：2008-08-22
申请人： NOKIA CORPORATION , VILHONEN, Sami
发明人： VILHONEN, Sami
IPC分类号： H03F3/21 , H03G1/00 , H03G3/30 , H03F3/195
CPC分类号： H03G3/225 , H03F1/0277 , H03F3/193 , H03F3/211 , H03F3/245 , H03F3/45179 , H03F3/72 , H03F2200/336 , H03F2200/451 , H03F2203/21142 , H03F2203/21196 , H03F2203/7227 , H03F2203/7236 , H03G1/0088 , H03G3/3042 , H04B1/0483
摘要： There is provided a modular amplifier structure comprising a plurality of parallel amplifier sub-units (208). Each amplifier sub-unit is configured to amplify a received payload signal under control of at least one received control signal. Outputs of the amplifier sub-units are applied to a combining circuit (218). The combining circuit is configured to combine the outputs of the plurality of amplifier sub-units to provide an amplified payload signal.
摘要翻译：提供了包括多个并联放大器子单元（208）的模块化放大器结构。每个放大器子单元被配置为在至少一个接收到的控制信号的控制下放大接收到的有效载荷信号。放大器子单元的输出被施加到组合电路（218）。组合电路被配置为组合多个放大器子单元的输出以提供放大的有效载荷信号。

3. 发明申请

WO2007135235A1 ANTENNA MATCHING MEASUREMENT AND AMPLIFICATION CONTROL 审中-公开
标题翻译：天线匹配测量和放大控制
公开(公告)号：WO2007135235A1
公开(公告)日：2007-11-29
申请号：PCT/FI2007/050274
申请日：2007-05-15
申请人： NOKIA CORPORATION , HEINONEN, Jarmo, J. , VILHONEN, Sami , VIGELIUS, Kari , PETTERSSON, Markus , VIITANIEMI, Vesa
发明人： HEINONEN, Jarmo, J. , VILHONEN, Sami , VIGELIUS, Kari , PETTERSSON, Markus , VIITANIEMI, Vesa
IPC分类号： H04B1/38 , H03G3/00 , H04B1/04 , H04B17/00 , H04B7/26
CPC分类号： H04W52/245 , H03G3/3047 , H04B17/318 , H04B2001/0416 , H04W52/52
摘要： A transceiver with amplification control comprises the following. A coupler samples a part of a radio frequency signal proceeding between an amplifier unit and an antenna of the transceiver. A converter down converts the sampled radio frequency signal. A measuring unit measures strength of the down converted radio frequency signal. A controller controls at least one parameter of the amplifier unit as a function of the measured strength.
摘要翻译：具有放大控制的收发器包括以下。耦合器对在收发器的放大器单元和天线之间进行的射频信号的一部分进行采样。 A转换器下变频采样的射频信号。测量单元测量下变频射频信号的强度。控制器控制放大器单元的至少一个参数作为测量强度的函数。

4. 发明申请

WO2006100617A1 OPERATING A PHASE LOCKED LOOP 审中-公开
标题翻译：操作相位锁定环
公开(公告)号：WO2006100617A1
公开(公告)日：2006-09-28
申请号：PCT/IB2006/050737
申请日：2006-03-09
申请人： NOKIA CORPORATION , SALONEN, Vesa , VILHONEN, Sami
发明人： SALONEN, Vesa , VILHONEN, Sami
IPC分类号： H03L7/113 , H03L7/187
CPC分类号： H03L7/189 , H03L7/113
摘要： A PLL comprises a VCO and a loop filter, wherein the VCO generates an AC output signal having a frequency which depends on an applied control voltage, and wherein the loop filter provides a control voltage to the VCO. The control voltage reflects determined phase differences between a potentially frequency divided output signal of the VCO and a reference signal. When operating the PLL, frequency deviations between a potentially frequency divided output signal of the VCO and a reference signal are detected and in addition, a resolution employed for detecting the frequency deviations is lower than a resolution employed for determining the phase differences. In case a frequency deviation is detected, a direct-current voltage shift is added to the control voltage provided by the loop filter.
摘要翻译： PLL包括VCO和环路滤波器，其中VCO产生具有取决于施加的控制电压的频率的AC输出信号，并且其中环路滤波器向VCO提供控制电压。控制电压反映了VCO的潜在分频输出信号与参考信号之间确定的相位差。当操作PLL时，检测VCO的潜在分频输出信号与参考信号之间的频率偏差，此外，用于检测频率偏差的分辨率低于用于确定相位差的分辨率。在检测到频率偏差的情况下，将直流电压偏移加到由环路滤波器提供的控制电压。

5. 发明申请

WO2005018092A1 TUNING A LOOP-FILTER OF A PLL 审中-公开
标题翻译：调谐PLL的环路滤波器
公开(公告)号：WO2005018092A1
公开(公告)日：2005-02-24
申请号：PCT/IB2004/002595
申请日：2004-08-11
申请人： NOKIA CORPORATION , VILHONEN, Sami , MELAVA, Jari
发明人： VILHONEN, Sami , MELAVA, Jari
IPC分类号： H03L7/093
CPC分类号： H03L7/0895 , H03L7/093
摘要： The invention relates to a method of automatically tuning a loop-filter of a phase locked loop. The loop-filter includes a capacitance at an output of a charge pump of the phase locked loop, and the charge pump provides current impulses to the loop-filter. In order to enable a simple tuning of the loop-filter, the method comprises adjusting the amplitude of the current impulses output by the charge pump essentially proportionally to the capacitance at the output of the charge pump. The invention relates equally to a phase locked loop comprising means for realizing this method and to a unit comprising such a phase locked loop.
摘要翻译：本发明涉及一种自动调谐锁相环的环路滤波器的方法。环路滤波器包括在锁相环的电荷泵的输出处的电容，并且电荷泵向环路滤波器提供电流脉冲。为了实现环路滤波器的简单调谐，该方法包括基本成比例地调整由电荷泵输出的电流脉冲的幅度与电荷泵输出端的电容成正比。本发明同样涉及一种锁相环，包括用于实现该方法的装置和包括这种锁相环的单元。

6. 发明申请

WO2012168379A1 HIGH OUTPUT POWER DIGITAL TX 审中-公开
标题翻译：高输出功率数字TX
公开(公告)号：WO2012168379A1
公开(公告)日：2012-12-13
申请号：PCT/EP2012/060819
申请日：2012-06-07
申请人： ST-Ericsson SA , VILHONEN, Sami
发明人： VILHONEN, Sami
IPC分类号： H03F1/00 , H04B1/04 , H03M1/66
CPC分类号： H03F3/45179 , H03F3/2175 , H03F3/245 , H03F2200/336 , H03F2200/537 , H03F2200/541 , H03M1/804 , H04B2001/0491
摘要： The disclosed apparatus and corresponding method uses amplifiers and a differential combiner to control the output power of a digital-to-analog upconverter and to isolate In-phase and Quadrature branches of the upconverter. First and second upconverters convert In-phase and Quadrature portions of a baseband digital value to respective first/second In-phase (l p /l n ) and first/second Quadrature (Q p /Q n ) analog components at RF. First and second amplifiers respectively amplify l p , l n and Q p , Q n to respectively generate amplified l p , l n and Q p , Q n signals. The first and second amplifiers each operate at a 50% duty cycle and in an interleaved fashion such that only one amplifier is active to generate an output at any time, and such that the amplified signals are output in an interleaved fashion. A differential combiner combines the amplified signals to generate the RF analog signal representative of the baseband digital value.
摘要翻译：所公开的装置和相应的方法使用放大器和差分组合器来控制数模转换器的输出功率并隔离上变频器的同相和正交分支。第一和第二上变频器将基带数字值的同相和正交部分转换为RF处的相应的第一/第二同相（lp / ln）和第一/第二正交（Qp / Qn）模拟分量。第一和第二放大器分别放大lp，ln和Qp，Qn分别产生放大的lp，ln和Qp，Qn信号。第一和第二放大器各自以50％占空比和交错方式工作，使得只有一个放大器有效以在任何时间产生输出，并且使得放大的信号以交错方式输出。差分组合器组合放大的信号以产生表示基带数字值的RF模拟信号。

7. 发明申请

WO2010076272A2 DIGITAL TO ANALOGUE CONVERTER 审中-公开
标题翻译：数字到模拟转换器
公开(公告)号：WO2010076272A2
公开(公告)日：2010-07-08
申请号：PCT/EP2009/067812
申请日：2009-12-22
申请人： ST ERICSSON SA , VILHONEN, Sami , ESKOLA, Rami
发明人： VILHONEN, Sami , ESKOLA, Rami
IPC分类号： H03M1/80
CPC分类号： H03M1/802
摘要： A circuit (60) for converting a digital value into an analogue signal is described. The circuit comprises a logic block (64) arranged to receive one or more digital signals representing the value and each having a relative weighting. The logic block is further arranged to output one or more signals, each output signal comprising an oscillator signal modulated by a respective digital signal. The circuit (60) further comprises generating means (69) for generating an analogue signal representative of the digital value. The analogue signal comprises a weighted combination of the signals output from the logic block (64), the relative weightings being based on the relative weightings of the respective digital signals. The logic block (64) may comprise a series of multiplying elements (61 a-c), such as logic gates or series switches, each multiplying element arranged to receive an oscillator signal as a first input and a respective digital signal as a second input, and arranged to multiply the oscillator signal with the digital signal. The generating means (69) may comprise a series of amplitude modifiers (62a-c), such as a capacitor, a resistor and an inductor, arranged to modify the relative amplitudes of the signals output from the logic block (64). The generating means (69) may comprise means (66) to sum the amplitude-modified signals
摘要翻译：描述了用于将数字值转换成模拟信号的电路（60）。该电路包括逻辑块（64），其被设置为接收表示该值的一个或多个数字信号并且每个数字信号具有相对加权。逻辑块还布置成输出一个或多个信号，每个输出信号包括由相应的数字信号调制的振荡器信号。电路（60）还包括用于生成表示数字值的模拟信号的生成装置（69）。模拟信号包括从逻辑块（64）输出的信号的加权组合，相对权重基于各个数字信号的相对权重。逻辑块（64）可以包括一系列乘法元件（61ac），诸如逻辑门或串联开关，每个乘法元件被布置为接收作为第一输入的振荡器信号和作为第二输入的相应的数字信号，以及用于将振荡器信号与数字信号相乘。生成装置（69）可以包括一系列幅度调节器（62a-c），例如电容器，电阻器和电感器，其被布置为修改从逻辑块（64）输出的信号的相对幅度。生成装置（69）可以包括用于对经振幅修改的信号进行求和的装置（66）

8. 发明申请

WO2009083501A3 A PHASE LOCKED LOOP 审中-公开
标题翻译：一个锁相环
公开(公告)号：WO2009083501A3
公开(公告)日：2009-09-17
申请号：PCT/EP2008068038
申请日：2008-12-19
申请人： NOKIA CORP , VAEAENAENEN PAAVO SAKARI , MIKKOLA NIKO JUHANI , HEILOE PETRI ANTERO , PELTONEN JANNE OLAVI , VILHONEN SAMI TAPANI
发明人： VAEAENAENEN PAAVO SAKARI , MIKKOLA NIKO JUHANI , HEILOE PETRI ANTERO , PELTONEN JANNE OLAVI , VILHONEN SAMI TAPANI
IPC分类号： H03L7/107 , H03L7/16
CPC分类号： H03L7/099 , H03L7/085 , H03L7/087 , H03L7/107 , H03L2207/50
摘要： A phase locked loop circuit comprising; a digitally controlled oscillator configured to receive a first signal and output a second signal dependent on the first signal and at least one mapping function; a phase comparator configured to receive the second signal and output a third signal dependent on the second signal, a reference signal and at least one phase comparator parameter; a loop filter configured to receive the third signal and generate the first signal dependent on the third signal and at least one filter parameter; and a controller configured to control at least one of: the at least one mapping function; the at least one phase comparator parameter; and the at least one filter parameter.
摘要翻译：一种锁相环电路，包括：数字控制振荡器，被配置为接收第一信号并输出取决于第一信号和至少一个映射函数的第二信号; 相位比较器，被配置为接收第二信号并输出取决于第二信号的第三信号，参考信号和至少一个相位比较器参数; 环路滤波器，被配置为接收所述第三信号并且依赖于所述第三信号和至少一个滤波器参数来生成所述第一信号; 以及控制器，被配置为控制以下中的至少一个：所述至少一个映射函数; 该至少一个相位比较器参数; 和至少一个过滤器参数。

9. 发明申请

WO2006097835A3 TRANSFERRED-IMPEDANCE FILTERING IN RF RECEIVERS 审中-公开
公开(公告)号：WO2006097835A3
公开(公告)日：2006-09-21
申请号：PCT/IB2006/000600
申请日：2006-03-17
申请人： NOKIA CORPORATION , NOKIA INC. , VILHONEN, Sami
发明人： VILHONEN, Sami
IPC分类号： H03H7/46 , H04B1/40
摘要： The specification and drawings present a new method and apparatus for using transferred-impedance filtering in RF (radio frequency) receivers (e.g., inside of a mobile communication device), wherein said filtering can be done with MOS-switches transferring impedance of a regular RC or RCL circuit to RF frequency filtering inside an RFIC (radio frequency integrated circuit).

10. 发明申请

WO2005018102A1 PROVISION OF LOCAL OSCILLATOR SIGNALS 审中-公开
标题翻译：提供本地振荡器信号
公开(公告)号：WO2005018102A1
公开(公告)日：2005-02-24
申请号：PCT/IB2004/002620
申请日：2004-08-12
申请人： NOKIA CORPORATION , HEINONEN, Jarmo , PETTERSSON, Markus , VILHONEN, Sami
发明人： HEINONEN, Jarmo , PETTERSSON, Markus , VILHONEN, Sami
IPC分类号： H04B1/40
CPC分类号： H04B1/406 , H03L7/22
摘要： The invention relates to a phase-locked loop structure providing local oscillator signals. In order to enable an improved supply of local oscillator signals, the phase-locked loop structure comprises a first phase-locked loop including a first voltage controlled oscillator and a second phase-locked loop including a second voltage controlled oscillator. A first local oscillator output provides a first local oscillator signal, wherein a signal output by the first voltage controlled oscillator is forwarded to the first local oscillator output. A second local oscillator output provides a second local oscillator signal. A selection component forwards a signal output by the first voltage controlled oscillator or a signal output by the second voltage controlled oscillator to the second local oscillator output. The invention relates equally to a corresponding communication unit and to a corresponding method.
摘要翻译：本发明涉及提供本地振荡器信号的锁相环结构。为了能够改善本地振荡器信号的供应，锁相环结构包括包括第一压控振荡器和包括第二压控振荡器的第二锁相环的第一锁相环。第一本地振荡器输出提供第一本地振荡器信号，其中由第一压控振荡器输出的信号被转发到第一本地振荡器输出。第二本地振荡器输出提供第二本机振荡器信号。选择部件将由第一压控振荡器输出的信号或由第二压控振荡器输出的信号转发到第二本机振荡器输出。本发明同样涉及对应的通信单元和相应的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式