公开(公告)号：US20100167682A1

公开(公告)日：2010-07-01

申请号：US12453392

申请日：2009-05-08

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H04B10/06

CPC分类号： H04B1/30 ,  H03D7/163 ,  H03D7/166

摘要： An apparatus configured to separate from a received radio frequency (RF) signal a first low-frequency signal and a second low-frequency signal having different phases, up-convert the first low-frequency signal and the second low-frequency signal into a first intermediate frequency signal and a second intermediate frequency signal, respectively, and amplify the first and the second intermediate-frequency signals.

摘要翻译： 一种被配置为与接收到的射频（RF）信号分离具有不同相位的第一低频信号和第二低频信号的装置，将第一低频信号和第二低频信号上变频为第一低频信号 中频信号和第二中频信号，并且放大第一和第二中频信号。

公开(公告)号：US07668527B2

公开(公告)日：2010-02-23

申请号：US11707021

申请日：2007-02-16

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H04B1/26 ,  H04B1/30

CPC分类号： H02M7/25 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/1483 ,  H03D2200/0025

摘要： A frequency-mixing device performing voltage multiplying and low-pass filtering operations in addition to the frequency mixing is provided. The three operations may be carried out with the same components by designing the frequency mixer appropriately. The frequency mixer comprises a balanced input port to receive a balanced input signal, an oscillator signal input port to receive a first and a second oscillator signal and a first, a second, and a third capacitance. First switching means are arranged to connect, in response to the first oscillator signal, the first and the second capacitance between a first and a second input port of the balanced input port. Second switching means are arranged to connect, in response to the second oscillator signal, the first capacitance between the first input port and the third capacitance and the second capacitance between the second input port and the third capacitance. An output port is connected to terminals of the third capacitance.

摘要翻译： 提供了除了频率混合之外进行电压倍增和低通滤波操作的频率混合装置。 可以通过适当地设计混频器，通过相同的部件来进行三个操作。 混频器包括用于接收平衡输入信号的平衡输入端口，用于接收第一和第二振荡器信号的振荡器信号输入端口以及第一，第二和第三电容。 第一开关装置被布置成响应于第一振荡器信号连接平衡输入端口的第一和第二输入端口之间的第一和第二电容。 第二开关装置被布置成响应于第二振荡器信号而连接第一输入端口和第三电容器之间的第一电容以及第二输入端口和第三电容器之间的第二电容。 输出端口连接到第三电容的端子。

公开(公告)号：US20080003973A1

公开(公告)日：2008-01-03

申请号：US11707021

申请日：2007-02-16

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H04B1/26

CPC分类号： H02M7/25 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/1483 ,  H03D2200/0025

摘要： A frequency-mixing device performing voltage multiplying and low-pass filtering operations in addition to the frequency mixing is provided. The three operations may be carried out with the same components by designing the frequency mixer appropriately. The frequency mixer comprises a balanced input port to receive a balanced input signal, an oscillator signal input port to receive a first and a second oscillator signal and a first, a second, and a third capacitance. First switching means are arranged to connect, in response to the first oscillator signal, the first and the second capacitance between a first and a second input port of the balanced input port. Second switching means are arranged to connect, in response to the second oscillator signal, the first capacitance between the first input port and the third capacitance and the second capacitance between the second input port and the third capacitance. An output port is connected to terminals of the third capacitance.

摘要翻译： 提供了除了频率混合之外进行电压倍增和低通滤波操作的频率混合装置。 可以通过适当地设计混频器，通过相同的部件来进行三个操作。 混频器包括用于接收平衡输入信号的平衡输入端口，用于接收第一和第二振荡器信号的振荡器信号输入端口以及第一，第二和第三电容。 第一开关装置被布置成响应于第一振荡器信号连接平衡输入端口的第一和第二输入端口之间的第一和第二电容。 第二开关装置被布置成响应于第二振荡器信号而连接第一输入端口和第三电容器之间的第一电容以及第二输入端口和第三电容器之间的第二电容。 输出端口连接到第三电容的端子。

公开(公告)号：US20070241946A1

公开(公告)日：2007-10-18

申请号：US11397920

申请日：2006-04-03

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H03M7/34

CPC分类号： H03K5/06 ,  H03K17/163 ,  H03K17/6872 ,  H03K17/6874 ,  H03K19/00361 ,  H03K2005/00071 ,  H03K2005/00156

摘要： A circuit for rounding the edges of a digital pulse so as to reduce interference has a first rounding block, a second rounding block and an output stage. The first rounding block rounds the second and fourth pulse edges so as to prolong rising and falling time of the digital pulse. The second rounding block rounds the first and third pulse edges in accordance with non-linear characteristics of a semiconductor of the second rounding block. The output stage is a feedback circuit where the first rounding block is coupled with the second rounding block and the second rounding block is coupled with the feedback circuit.

摘要翻译： 用于舍入数字脉冲的边缘以减少干扰的电路具有第一舍入块，第二舍入块和输出级。 第一舍入块舍入第二和第四脉冲沿，以延长数字脉冲的上升和下降时间。 第二舍入块根据第二舍入块的半导体的非线性特性舍入第一和第三脉冲边缘。 输出级是反馈电路，其中第一舍入模块与第二舍入模块耦合，第二舍入模块与反馈电路耦合。

公开(公告)号：US20070115053A1

公开(公告)日：2007-05-24

申请号：US11272431

申请日：2005-11-10

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H03F3/68

CPC分类号： H03F1/0238 ,  H03F1/0205 ,  H03F1/32 ,  H03F3/19 ,  H03F3/24 ,  H03F2200/192 ,  H03F2200/198 ,  H03F2200/204 ,  H03F2200/336 ,  H03F2200/351 ,  H03F2200/451 ,  H03F2200/516 ,  H03F2200/99

摘要： The invention relates to optimizing the efficiency of a power amplifier of a transmitter. The objectives of the invention are achieved with a solution in which a voltage level of an output signal of an amplifier stage (301, 302) is detected (305, 306) at a signal output of each amplifier stage and the detected information is used for controlling a supply voltage of each amplifier stage in a way so that the unnecessarily high levels of the supply voltages can be avoided thus improving efficiency of the power amplifier.

摘要翻译： 本发明涉及优化发射机功率放大器的效率。 本发明的目的是通过在每个放大器级的信号输出处检测放大器级（301,302）的输出信号的电压电平（305,306）的解决方案来实现的，并且检测到的信息用于 以这样的方式控制每个放大器级的电源电压，使得可以避免不必要的高电平电平，从而提高功率放大器的效率。

公开(公告)号：US5379458A

公开(公告)日：1995-01-03

申请号：US989076

申请日：1992-12-11

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H03D9/06 ,  H03D7/10 ,  H03D7/14 ,  H04B1/26 ,  H03B19/18 ,  H03B19/20

CPC分类号： H03D7/1408

摘要： In the simplified diode mixer according to the invention the transformer supplying the local oscillator signal is replaced by a circuit means that prevents build-up of a d.c. voltage at the terminals of the mixer diodes (3, 4). The circuit means can be e.g. a coil (5), a strip line, or a diode pair. The filters (1, 2) for the signals to be mixed are realized as band-pass filters. The mixer is used e.g. in a GSM mobile phone.

摘要翻译： 在根据本发明的简化的二极管混频器中，提供本地振荡器信号的变压器由电路装置代替，该装置防止直流电压的积聚。 在混频器二极管（3,4）的端子处的电压。 电路装置可以是例如。 线圈（5​​），带状线或二极管对。 要混合的信号的滤波器（1,2）被实现为带通滤波器。 混合器例如使用。 在GSM手机中。

公开(公告)号：US5233634A

公开(公告)日：1993-08-03

申请号：US593093

申请日：1990-10-05

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H03G3/20 ,  H04B7/005

CPC分类号： H04W52/52 ,  H03G3/3052

摘要： An automatic gain control circuit (AGC) in a receiver for a digital radio telephone. Most of the total gain control of the received signal is accomplished in the base band frequency sections, i.e. in the I and Q branches, where the signal amplification is controlled step by step, and only a minor part of the total gain control is performed in the RF stage. High amplification steps are formed with amplifiers (9a, 10a, 11a, 12a; 9b, 10b, 11b, 12b), wherein the desired amplifier is activated with a digitally controlled (A, B) multiplexer (13a, 13b), and low amplification steps are formed with a resistance attenuator (14a, 14b), in which a signal of desired level is selected by a digitally controlled (C, D, E) multiplexer (15a, 15b). In addition, the RF amplifier (2) has two amplification levels and the desired amplification is selected with a digital control (F). With the different digital control combinations (A, B, C, D, E, F) the entire gain control range required of the receiver can be covered.

摘要翻译： 一种用于数字无线电话的接收机中的自动增益控制电路（AGC）。 接收信号的总增益控制的大部分是在基带频率部分中完成的，即在I和Q分支中，其中信号放大一步一步地控制，并且只有少部分总增益控制在 RF阶段。 用放大器（9a，10a，11a，12a; 9b，10b，11b，12b）形成高放大步骤，其中期望的放大器由数字控制（A，B）多路复用器（13a，13b）激活，低放大 步骤由电阻衰减器（14a，14b）形成，其中通过数字控制（C，D，E）多路复用器（15a，15b）选择所需电平的信号。 此外，RF放大器（2）具有两个放大电平，并且利用数字控制（F）选择所需的放大。 使用不同的数字控制组合（A，B，C，D，E，F）可以覆盖接收机所需的整个增益控制范围。

公开(公告)号：US20120170682A1

公开(公告)日：2012-07-05

申请号：US13380801

申请日：2009-06-23

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H04L27/16

CPC分类号： H04B1/405 ,  H04B1/0053 ,  H04B1/0067

摘要： There is provided a solution for dual channel transmission in a radio communication device. Both transmission signals to be transmitted on different channels are mixed two times by using oscillator signals having the same frequencies for both transmission signals, and the transmission circuitry is arranged to process the signals so that the transmission signals are nevertheless up-converted to different frequency channels.

摘要翻译： 在无线电通信设备中提供了用于双信道传输的解决方案。 通过对两个发送信号使用具有相同频率的振荡器信号，将要在不同信道上发送的两个发送信号混合两次，并且发送电路被布置成处理信号，使得发送信号仍被上变频到不同的频率信道 。

公开(公告)号：US20070224940A1

公开(公告)日：2007-09-27

申请号：US11711483

申请日：2007-02-26

申请人： Ilkka Pankinaho ,  Risto Vaisanen ,  Kaj Saarinen ,  Juha Nurmi

发明人： Ilkka Pankinaho ,  Risto Vaisanen ,  Kaj Saarinen ,  Juha Nurmi

IPC分类号： H04B17/00

CPC分类号： H04B15/04

摘要： An electronic device 300 comprises a processing component 330 for reducing electromagnetic interferences. The processing component 330 is adapted to determine an activity status of at least one first component 311-315 operating in at least one known frequency range. The processing component 330 is further adapted to adjust an operating frequency of an active second component 321-322 depending on the determined activity status of the at least one first component 311-315. The invention relates equally to a chipset 330, to a method, to a software code 331 and to a software program product realizing the functions of the processing component 330.

摘要翻译： 电子设备300包括用于减少电磁干扰的处理部件330。 处理组件330适于确定在至少一个已知频率范围内操作的至少一个第一组件311-315的活动状态。 处理组件330还适于根据所确定的至少一个第一组件311-315的活动状态来调整活动的第二组件321至322的操作频率。 本发明同样涉及一种芯片组330，一种方法，一种是软件代码331和一种实现处理部件330的功能的软件程序产品。

公开(公告)号：US20060284685A1

公开(公告)日：2006-12-21

申请号：US11154933

申请日：2005-06-15

申请人： Risto Vaisanen

发明人： Risto Vaisanen

IPC分类号： H03F3/191

CPC分类号： H03F1/0288 ,  H01L2224/16225 ,  H01L2924/15311 ,  H03F1/56 ,  H03F3/26 ,  H03F3/602 ,  H03H7/38 ,  H03H7/42

摘要： A power amplifier integrated into an RF-IC (integrated circuit carrying radio frequency signals) comprises an active stage (350) and a passive stage (360), the passive stage being electrically coupled between the active stage and a load of the power amplifier. Electrically conductive elements (305) accomplishing an electrical connection between the active part and the passive part of an RF-IC are designed in a way that the electrically conductive elements perform at least part of impedance transformation on a signal path from signal output terminals of the active stage to signal output terminals of the passive stage.

摘要翻译： 集成到RF-IC（承载射频信号的集成电路）的功率放大器包括有源级（350）和无源级（360），无源级电耦合在有源级和功率放大器的负载之间。 设计实现RF-IC的有源部分和无源部分之间的电连接的导电元件（305），使得导电元件在信号路径上执行至少部分阻抗变换 主动阶段用于信号被动阶段的输出端子。