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公开(公告)号：US20050046487A1
公开(公告)日：2005-03-03
申请号：US10650367
申请日：2003-08-27
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
CPC分类号： H03H7/54 , H03H7/0153 , H03H7/06 , H03H7/12 , H03H2210/043 , H03L7/0891 , H03L7/093
摘要： The invention relates to a method of automatically calibrating a loop-filter of a phase locked loop, which loop-filter comprises at least one RC-filter component and is integrated on a single chip together with at least one RC-filter component of another entity than the phase locked loop. In order to simplify a calibration of the loop-filter, the method comprises tuning the at least one RC-filter component of the loop-filter based on measurements performed on the at least one RC-filter component of the other entity. The invention relates equally to an integrated circuit chip comprising means for realizing this method and to a unit including such a chip.
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公开(公告)号：US06972633B2
公开(公告)日：2005-12-06
申请号：US10650367
申请日：2003-08-27
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
CPC分类号： H03H7/54 , H03H7/0153 , H03H7/06 , H03H7/12 , H03H2210/043 , H03L7/0891 , H03L7/093
摘要： The invention relates to a method of automatically calibrating a loop-filter of a phase locked loop, which loop-filter comprises at least one RC-filter component and is integrated on a single chip together with at least one RC-filter component of another entity than the phase locked loop. In order to simplify a calibration of the loop-filter, the method comprises tuning the at least one RC-filter component of the loop-filter based on measurements performed on the at least one RC-filter component of the other entity. The invention relates equally to an integrated circuit chip comprising means for realizing this method and to a unit including such a chip.
摘要翻译： 本发明涉及一种自动校准锁相环的环路滤波器的方法，该环路滤波器包括至少一个RC滤波器组件，并且与另一实体的至少一个RC滤波器组件一起集成在单个芯片上 比锁相环。 为了简化环路滤波器的校准，该方法包括基于对另一实体的至少一个RC滤波器组件执行的测量来调谐环路滤波器的至少一个RC滤波器组件。 本发明同样涉及一种集成电路芯片，其包括用于实现该方法的装置和包括这种芯片的单元。
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公开(公告)号：US20050046485A1
公开(公告)日：2005-03-03
申请号：US10641726
申请日：2003-08-15
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
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。
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公开(公告)号：US06958657B2
公开(公告)日：2005-10-25
申请号：US10641726
申请日：2003-08-15
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
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.
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公开(公告)号：US08503963B2
公开(公告)日：2013-08-06
申请号：US13173973
申请日：2011-06-30
申请人： Pete Sivonen , Jonne Riekki , Jouni Kaukovuori , Sami Vilhonen , Jarkko Jussila
发明人： Pete Sivonen , Jonne Riekki , Jouni Kaukovuori , Sami Vilhonen , Jarkko Jussila
IPC分类号： H04B1/10
CPC分类号： H03H19/008
摘要： An integrated circuit for a radio receiver comprising a radio-frequency amplifier and a radio-frequency filter is described. The amplifier receives radio-frequency signals from an antenna, the filter is connected to the amplifier output, and the output of the filter is provided to a processing stage of the receiver. The amplifier comprises an amplifying stage controlled by a radio-frequency input signal and a signal fed back from the filter. The amplifier input impedance is substantially matched to the antenna impedance at a frequency band of interest. The signal fed back from the filter providing attenuation of signals outside the frequency band of interest at the amplifier input. The filter comprises one or more filter components. A filter component comprises a first input and a second input for receiving the amplifier output, a first switch arranged to selectively connect the first input to a first impedance, a second switch arranged to selectively connect the first input to a second impedance, a third switch arranged to selectively connect the second input to the first impedance, and a fourth switch arranged to selectively connect the second input to the second impedance. The first and fourth switches are controlled by a first oscillator signal and the second and third switches are controlled by a second oscillator signal that is 180° out of phase with the first oscillator signal.
摘要翻译： 描述了一种用于包括射频放大器和射频滤波器的无线电接收机的集成电路。 放大器从天线接收射频信号，滤波器连接到放大器输出，滤波器的输出提供给接收器的处理级。 放大器包括由射频输入信号控制的放大级和从滤波器反馈的信号。 放大器输入阻抗基本上与感兴趣的频带处的天线阻抗匹配。 从滤波器反馈的信号在放大器输入端提供感兴趣频带之外的信号衰减。 过滤器包括一个或多个过滤器部件。 滤波器部件包括用于接收放大器输出的第一输入端和第二输入端，布置成选择性地将第一输入端连接到第一阻抗的第一开关，布置成有选择地将第一输入端连接到第二阻抗的第二开关，第三开关 布置成选择性地将第二输入端连接到第一阻抗，以及第四开关，被布置为选择性地将第二输入端连接到第二阻抗。 第一和第四开关由第一振荡器信号控制，第二和第三开关由与第一振荡器信号相差180°的第二振荡器信号控制。
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公开(公告)号：US20080299929A1
公开(公告)日：2008-12-04
申请号：US11826788
申请日：2007-07-18
IPC分类号： H04B7/005
CPC分类号： H03G3/3068 , H03G3/3078
摘要： A direct-conversion radio receiver is provided. The receiver includes a first measurement unit configured to measure a signal level of a received signal at an input of the receiver. The receiver also includes a gain controller configured to stepwise adjust at least a front-end gain and a baseband gain of the receiver when the signal level of the received signal at the input of the receiver exceeds a given sensitivity level, and adjust the front-end gain with at least one further gain step when the input signal level is below the given sensitivity level.
摘要翻译： 提供直接转换无线电接收机。 接收机包括第一测量单元，其被配置为在接收机的输入处测量接收信号的信号电平。 接收机还包括增益控制器，配置成当接收机输入端的接收信号的信号电平超过给定灵敏度时，逐步调整接收机的前端增益和基带增益， 当输入信号电平低于给定灵敏度电平时，具有至少一个进一步增益步长的最终增益。
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公开(公告)号：US20080224763A1
公开(公告)日：2008-09-18
申请号：US11795926
申请日：2006-03-17
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H03K5/00
CPC分类号： H03H19/008 , H04B1/0017 , H04B1/18
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).
摘要翻译： 本说明书和附图提出了一种在RF（射频）接收机（例如，移动通信设备内部）中使用传输阻抗滤波的新方法和装置，其中所述滤波可以通过传输常规RC的阻抗的MOS开关来完成 或RCL电路到RFIC（射频集成电路）内的RF频率滤波。
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公开(公告)号：US20070218844A1
公开(公告)日：2007-09-20
申请号：US11378135
申请日：2006-03-17
申请人： Marko Alanen , Sami Vilhonen , Ari Vilander
发明人： Marko Alanen , Sami Vilhonen , Ari Vilander
IPC分类号： H04B1/38
CPC分类号： H04B1/0475 , H03H19/008
摘要： A filtering method, a transceiver and a transmitter are provided. The transmitter comprises a power amplifier amplifying an RF signal and having multiple stages, and a local oscillator, the power amplifier comprising between at least two stages of the power amplifier an impedance circuitry for forming an impedance at a frequency related to the frequency of the local oscillator, and a switch for switching the impedance of the impedance circuitry means to RF frequency.
摘要翻译： 提供了一种滤波方法，收发器和发射机。 所述发射机包括放大RF信号并具有多级的功率放大器，以及本地振荡器，所述功率放大器包括所述功率放大器的至少两级之间的阻抗电路，用于在与所述局部的频率相关的频率处形成阻抗 振荡器和用于将阻抗电路装置的阻抗切换到RF频率的开关。
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公开(公告)号：US08659360B2
公开(公告)日：2014-02-25
申请号：US13338390
申请日：2011-12-28
申请人： Petri Heliö , Petri Korpi , Niko Mikkola , Paavo Väänänen , Sami Vilhonen
发明人： Petri Heliö , Petri Korpi , Niko Mikkola , Paavo Väänänen , Sami Vilhonen
CPC分类号： H03L7/06 , G04F10/005 , G04F10/105
摘要： The charge-to-digital timer apparatus and method disclosed herein estimates the elapsed time between two signals, e.g., a start signal and a stop signal. To that end, at least a capacitive load is charged with a known current to generate a load voltage. Subsequently, a first voltage is ramped in a plurality of discrete voltage steps associated with a plurality of known capacitances until the ramped voltage satisfies a predetermined criterion relative to a second voltage. The elapsed time is determined from the discrete voltage steps, one of the first and second voltages, the known current, and the known capacitive load.
摘要翻译： 这里公开的电荷数字计时装置和方法估计两个信号之间的经过时间，例如起始信号和停止信号。 为此，至少电容性负载以已知电流充电以产生负载电压。 随后，第一电压以与多个已知电容相关联的多个离散电压阶跃斜坡，直到斜坡电压相对于第二电压满足预定标准。 经过的时间由离散的电压阶跃确定，第一和第二电压之一，已知电流和已知的容性负载。
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公开(公告)号：US20120314795A1
公开(公告)日：2012-12-13
申请号：US13156751
申请日：2011-06-09
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H04L27/00
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 (Ip/In) and first/second Quadrature (Qp/Qn) analog components at RF. First and second amplifiers respectively amplify Ip, In and Qp, Qn to respectively generate amplified Ip, In and Qp, Qn 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（Ip / In）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Ip，In和Qp，Qn分别产生放大的Ip，In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。
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