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21. 发明申请

US20130169327A1 Charge-to-Digital Timer 有权
标题翻译：电荷到数字定时器
公开(公告)号：US20130169327A1
公开(公告)日：2013-07-04
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
IPC分类号： H03L7/06 , H03M1/10 , H03M1/12
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。

22. 发明授权

US08433273B2 Increasing sensitivity of radio receiver 失效
标题翻译：增加无线电接收机的灵敏度
公开(公告)号：US08433273B2
公开(公告)日：2013-04-30
申请号：US11826788
申请日：2007-07-18
申请人： Jarmo Juhani Heinonen , Sami Vilhonen
发明人： Jarmo Juhani Heinonen , Sami Vilhonen
IPC分类号： H04B7/00
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。

23. 发明授权

US08208592B2 Receiver 有权
标题翻译：接收器
公开(公告)号：US08208592B2
公开(公告)日：2012-06-26
申请号：US10117372
申请日：2002-04-05
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H04L27/08 , H04L25/06 , H04L23/00 , H04B7/00
CPC分类号： H03F3/45475 , H03D3/008 , H03F2203/45212 , H04B1/30
摘要： A receiver and a method for a receiver is disclosed. The receiver comprises a signal processing path for receiving a first signal modulated by a first modulation method and having a first bandwidth and a second signal modulated by a second modulation method and having a second bandwidth. A common gain control function is provided for processing said first and second signals. A common DC offset cancellation is also provided for said first and second signals. In a preferred embodiment the gain control and the DC offset cancellation a provided by a single circuit.
摘要翻译：公开了一种用于接收机的接收机和方法。接收机包括用于接收由第一调制方法调制并具有第一带宽的第一信号和由第二调制方法调制并具有第二带宽的第二信号的信号处理路径。提供了用于处理所述第一和第二信号的公共增益控制功能。还为所述第一和第二信号提供常见的DC偏移消除。在优选实施例中，由单个电路提供的增益控制和DC偏移消除。

24. 发明授权

US08041314B2 Signal amplifier structure for radio transmitter 有权
标题翻译：无线电发射机的信号放大器结构
公开(公告)号：US08041314B2
公开(公告)日：2011-10-18
申请号：US11907071
申请日：2007-10-09
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H04B1/04
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 that includes a plurality of parallel amplifier sub-units. 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. 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。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。

25. 发明授权

US07187230B2 Transferred-impedance filtering in RF receivers 有权
标题翻译： RF接收机中的转移阻抗滤波
公开(公告)号：US07187230B2
公开(公告)日：2007-03-06
申请号：US11092952
申请日：2005-03-18
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 present invention provides a method 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：本发明提供了一种在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方法，其中所述滤波可以通过传输常规RC或RCL电路的阻抗的MOS开关来实现， RFIC（射频集成电路）内的RF频率滤波。

26. 发明授权

US07026874B2 Methods and apparatus for improving the operation of a variable gain amplifier (VGA) 失效
标题翻译：改善可变增益放大器（VGA）运行的方法和装置
公开(公告)号：US07026874B2
公开(公告)日：2006-04-11
申请号：US10372514
申请日：2003-02-24
申请人： Sami Vaara , Sami Vilhonen
发明人： Sami Vaara , Sami Vilhonen
IPC分类号： H03F3/45
CPC分类号： H03G1/0023
摘要： Disclosed is an RF transmitter circuit (10), as well as a method for operating the circuit. The RF transmitter circuit includes a VGA (20), that includes circuitry for generating a feedback signal, and a temperature compensation block (18) having an input coupled to a gain control signal and an output coupled to an input of the VGA for providing to the VGA a compensated gain control signal. The temperature compensation block further includes a bias input that receives the VGA feedback signal. The VGA feedback signal operates to modify the gain control signal to reduce an amount of variability in a VGA gain slope over a range of VGA output power.
摘要翻译：公开了一种RF发射机电路（10），以及用于操作电路的方法。 RF发射器电路包括VGA（20），其包括用于产生反馈信号的电路和温度补偿块（18），其具有耦合到增益控制信号的输入和耦合到VGA的输入的输出，用于提供 VGA是补偿增益控制信号。温度补偿块还包括接收VGA反馈信号的偏置输入。 VGA反馈信号用于修改增益控制信号，以减少VGA输出功率范围内VGA增益斜率的变化量。

27. 发明授权

US06967533B2 Arrangement for saving energy in transmitter 有权
标题翻译：发射机节能安排
公开(公告)号：US06967533B2
公开(公告)日：2005-11-22
申请号：US10816516
申请日：2004-04-01
申请人： Sami Vilhonen , Sami Vaara
发明人： Sami Vilhonen , Sami Vaara
IPC分类号： H03G1/00 , H03G3/30 , H03F3/45
CPC分类号： H03G1/0023 , H03G3/3042
摘要： An arrangement for saving energy in a radio device transmitter and a radio device. The steady currents of the transmitter amplifiers are made dependent on the transmitting power for reducing the losses of the amplifiers. The VGA (400) comprises at least one main differential pair (Q41–Q42; Q43–Q44) for controlling the gain and a bias differential pair (Q47–Q48) for controlling said steady currents. These pairs are steered by the one and the same voltage (ΔV), in which case the output current (Ib1; Ib2) of the bias differential pair changes in the same way as the output current (io1; io2) of the main differential pair when the gain is readjusted. The output current of the bias differential pair is used as a bias current of the transmitter amplifiers, i.e. as a current that determines the steady currents of the amplifiers. Because the values of the steady currents of the amplifiers track accurately the value of the gain, when this is changed, the steady currents are always so low as the transmitting power necessarily requires, at a given time, wherein the amount of needless losses, from the transmitting operation's point of view, is small. Said differential pairs are placed on one and the same substrate, in order to the control to function accurately in a wide dynamic range.
摘要翻译：用于在无线电设备发射机和无线电设备中节省能量的装置。发射机放大器的稳定电流取决于发射功率，以减少放大器的损耗。 VGA（400）包括用于控制增益的至少一个主差分对（Q 41 -Q 42; Q 43 -Q 44）和用于控制所述稳定电流的偏置差分对（Q 47 -Q 48）。这些对通过一个和相同的电压（DeltaV）进行控制，在这种情况下，偏置差分对的输出电流（I B B I I I I 2 S 2＆lt; 当重新调整增益时，与主差分对的输出电流（i o2 ）相同的方式。偏置差分对的输出电流用作发射机放大器的偏置电流，即作为确定放大器的稳定电流的电流。由于放大器的稳定电流值准确地跟踪增益的值，所以当这种变化时，稳定电流总是如发射功率一样低，在给定的时间，其中不必要的损耗量来自传输操作的观点很小。所述差分对被放置在同一基板上，以便控制在宽的动态范围内准确地起作用。

28. 发明授权

US08542769B2 High output power digital TX 有权
标题翻译：高输出功率数字TX
公开(公告)号：US08542769B2
公开(公告)日：2013-09-24
申请号：US13156751
申请日：2011-06-09
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49
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。

29. 发明申请

US20110210881A1 DOUBLE BALANCED DIGITAL TRANSMITTER 有权
标题翻译：双重平衡数字发射器
公开(公告)号：US20110210881A1
公开(公告)日：2011-09-01
申请号：US13076717
申请日：2011-03-31
申请人： Sami Vilhonen , Rami Eskola
发明人： Sami Vilhonen , Rami Eskola
IPC分类号： H03M1/66
CPC分类号： H03M1/802
摘要： A digital-to-analog upconverter directly converts a baseband digital value comprising a plurality of bits to an RF analog signal to combine digital-to-analog operations with frequency upconversion operations. One exemplary digital-to-analog upconverter comprises a plurality of conversion units, one for each of the plurality of bits in the baseband digital value, and an output node coupled to each of the conversion units. Each conversion unit generates a weighted analog signal at a low frequency or at a radio frequency responsive to the corresponding input bit and an oscillator signal at RF. The weighting factor of each conversion unit corresponds to a relative weighting of the corresponding bit. The output node combines the weighted analog signals to generate a combined RF analog signal representative of the baseband digital value.
摘要翻译：数模转换上变频器将包含多个位的基带数字值直接转换为RF模拟信号，以将数模转换操作与上变频操作组合。一个示例性的数/模上变频器包括多个转换单元，一个用于基带数字值中的多个比特中的每一个，以及耦合到每个转换单元的输出节点。每个转换单元响应于相应的输入位和RF处的振荡器信号以低频率或射频产生加权模拟信号。每个转换单元的加权因子对应于相应位的相对加权。输出节点组合加权模拟信号以产生表示基带数字值的组合RF模拟信号。

30. 发明授权

US07796953B2 Transmitter, power amplifier and filtering method 有权
标题翻译：发射机，功率放大器和滤波方法
公开(公告)号：US07796953B2
公开(公告)日：2010-09-14
申请号：US11378135
申请日：2006-03-17
申请人： Marko J. Alanen , Sami Vilhonen , Ari Vilander
发明人： Marko J. 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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