公开(公告)号：US06490706B2

公开(公告)日：2002-12-03

申请号：US09726908

申请日：2000-11-30

Applicant: Sven Mattisson

Inventor： Sven Mattisson

IPC: G06F1750

CPC classification number: H03H11/42 ,  H03H11/08

Abstract: The invention relates to a filter circuit and a method for making a filter circuit comprising at least one gyrator core section (GCi) having four inverters mutually connected in a loop configuration between a pair of input terminals (i—1; i—2) and a pair of output terminals (o—1; o—2). At least one common mode feedback section (CMIi, CMOi) is provided between the pair of input terminals and/or the pair of output terminals. The common mode feedback section comprises two series connections respectively formed by an inverter and a short-sectioned inverter connected antiparallelly between the input terminals or the output terminals. The inverters may be constituted by a MOS, CMOS or BiCMOS or bipolar transistor. According to the invention, the channel region dimensions of the transistors of the gyrator core section and/or the common mode feedback section are selected such that the relationship g*C≧gm*cm is fulfilled, where g is the effective conductive loading of the gyrator core section terminals, C is the effective capacitive loading of the gyrator core section terminals, gm is the effective gyration constant of the gyrator core section, and cm is the effective transcapacitance of the gyrator core section.

Abstract translation: 本发明涉及一种滤波器电路和滤波电路的制造方法，该滤波电路包括至少一个具有四个反相器的回转器铁心部分（GCi），该四个反相器以一对输入端（i-1; i-2）和 一对输出端子（o-1; o-2）。 在一对输入端子和/或一对输出端子之间提供至少一个共模反馈部分（CMIi，CMOi）。 共模反馈部包括分别由反相器和在输入端子或输出端子之间反并联连接的短路逆变器形成的两个串联连接。 反相器可以由MOS，CMOS或BiCMOS或双极晶体管构成。 根据本发明，选择回转器芯部分和/或共模反馈部分的晶体管的沟道区域尺寸，使得满足g * C> = gm * cm的关系，其中g是有效导电负载 回转器铁心部分端子C是回转器铁芯部分端子的有效电容负载，gm是回转器铁芯部分的有效回转常数，cm是回转器铁芯部分的有效转速。

公开(公告)号：US06259315B1

公开(公告)日：2001-07-10

申请号：US09274330

申请日：1999-03-23

Applicant: Sven Mattisson ,  Jacobus Haartsen

Inventor： Sven Mattisson ,  Jacobus Haartsen

IPC: H03D300

CPC classification number: H03D3/003 ,  H03J3/08

Abstract: A demodulator circuit for demodulating a frequency modulated input, which includes a detector (14) that is operable to produce a demodulated signal from an incoming frequency modulated signal. A tuning circuit (19) is connected to the detector and operable to vary the frequency response characteristics of the detector. An auxiliary detector (25, 26) is connected to receive a reference frequency signal and to provide an auxiliary tuning signal to the detector on the basis of detection of the reference frequency signal.

Abstract translation: 一种用于解调频率调制输入的解调器电路，其包括可操作以从输入频率调制信号产生解调信号的检测器（14）。 调谐电路（19）连接到检测器并可操作以改变检测器的频率响应特性。 辅助检测器（25,26）被连接以接收参考频率信号，并且在检测基准频率信号的基础上向检测器提供辅助调谐信号。

公开(公告)号：US4459554A

公开(公告)日：1984-07-10

申请号：US331984

申请日：1981-12-18

Applicant: Sven Mattisson

Inventor： Sven Mattisson

IPC: H03F1/08 ,  H03F1/00

CPC classification number: H03F1/083 ,  H03F1/34 ,  H03F3/185 ,  H03F2203/45138 ,  H03F2203/45526

Abstract: An equalization amplifier (30) is disclosed which includes two amplifier stages (32, 34) connected in cascade. The first amplifier stage (32) includes a low pass filter amplifier (40) having a pole frequency of F1 and a feed forward path (36) bypassing the low pass filter amplifier. The feed forward path provides the input signal to an adder circuit (42) where it is added to the output of the low pass filter amplifier. The effect of this addition is to provide the first amplifier with a zero frequency of F2, where F2 is greater than F1. The resulting sum signal is applied to the second amplifier stage (34) which also has a low pass filter characteristic. The second filter has a pole frequency of F3, where F3 is greater than F2. The equalization amplifier is particularly useful for providing RIAA equalization of phono cartridge output signals.

Abstract translation: 公开了一种均衡放大器（30），其包括串联连接的两个放大器级（32,34）。 第一放大器级（32）包括具有极点频率F1的低通滤波器放大器（40）和绕过低通滤波器放大器的前馈路径（36）。 前馈路径将输入信号提供给加法器电路（42），在加法器电路（42）中将其输入到低通滤波放大器的输出端。 该添加的效果是提供第一放大器具有F2的零频率，其中F2大于F1。 所得到的和信号被施加到也具有低通滤波器特性的第二放大器级（34）。 第二个滤波器的极点频率为F3，其中F3大于F2。 均衡放大器特别适用于提供唱机输出信号的RIAA均衡。

公开(公告)号：US08681894B2

公开(公告)日：2014-03-25

申请号：US12611677

申请日：2009-11-03

Applicant: Fenghao Mu ,  Sven Mattisson

Inventor： Fenghao Mu ,  Sven Mattisson

IPC: H04L27/00

CPC classification number: H03F3/24 ,  H03F3/195 ,  H03F3/211 ,  H03F2200/336

Abstract: A digital affine transformation modulator and power amplifier drives a transmitter antenna. The modulator performs an affine transformation on a signal, wherein the I, Q space is mapped to a plurality of sectors. A signal in a sector is expressed as the sum of two vectors, the angles of which define the sector boundaries. A digital power amplifier comprises a plurality of amplifier cells, each cell comprising at least two amplifier units. For a given signal, each amplifier unit selectively amplifies a clock signal having a phase corresponding to one of the boundary angles of the signal's affine transformed sector. A subset of the plurality of amplifier cells receiving each phase clock signal are enabled, based on the magnitude of the associated vector describing the signal in affine transform space. The modulation scheme exhibits higher efficiency than quadrature modulation, without the bandwidth expansion and group delay mismatch of polar modulation.

Abstract translation: 数字仿射变换调制器和功率放大器驱动发射机天线。 调制器对信号执行仿射变换，其中I，Q空间映射到多个扇区。 扇区中的信号被表示为两个矢量的和，它们的角度限定了扇区边界。 数字功率放大器包括多个放大器单元，每个单元包括至少两个放大器单元。 对于给定信号，每个放大器单元选择性地放大具有对应于信号仿射变换扇区的一个边界角的相位的时钟信号。 基于描述仿射变换空间中的信号的相关矢量的大小，启用接收每个相位时钟信号的多个放大器单元的子集。 调制方案表现出比正交调制更高的效率，没有频带扩展和极化调制的群延迟失配。

公开(公告)号：US08509725B2

公开(公告)日：2013-08-13

申请号：US13001758

申请日：2009-06-15

Applicant: Lars Sundström ,  Bengt Lindoff ,  Sven Mattisson ,  Filip Oredsson ,  Tony Petersson ,  Imad ud Din

Inventor： Lars Sundström ,  Bengt Lindoff ,  Sven Mattisson ,  Filip Oredsson ,  Tony Petersson ,  Imad ud Din

IPC: H04B1/26

CPC classification number: H04B1/28 ,  H04B1/406

Abstract: A processing device (40) for processing an analog complex input signal generated by downconversion of an aggregated-spectrum radio-frequency signal in a radio-receiver (10), wherein the complex input signal comprises a plurality of sub bands (S1-S4) scattered across a total frequency band (4) of the complex input signal. The processing device (40) comprises a plurality of processing paths (P1-PN). wherein each processing path (P1-PN) is adapted to process an associated sub band (S1-S4). Each processing path comprises a complex mixer (CM1-CMN) adapted to frequency translate the complex input signal, and an analog channel-selection filter (CSF1-CSFN) arranged to filter an output signal of the complex mixer (CM1-CMN) and pass the frequency translated associated sub band (S1-S4). A control unit (60) is adapted to receive control data indicating frequency locations of the sub bands (S1-S4) and, for each processing path (P1-PN). control the local oscillator signal of the complex mixer (CM1-CMN) of the processing path (P1-PN) based on the frequency location of the associated sub band (S1-S4) and the passband of the channel-selection filter (CSF1-CSFN) of the processing path (P1-PN), such that the frequency-translated associated sub band (S1-S4) appears within a passband of the channel-selection filter (CSF1-CSFN) of the processing path (P1-PN). The distortion monitored in the unused paths may be used to improve the performance of the used paths.

Abstract translation: 一种处理装置（40），用于处理通过在无线电接收机（10）中对聚合频谱射频信号进行下变频而产生的模拟复合输入信号，其中所述复合输入信号包括多个子带（S1-S4） 分散在复合输入信号的总频带（4）上。 处理装置（40）包括多个处理路径（P1-PN），其中每个处理路径（P1-PN）适于处理相关子带（S1-S4）。 每个处理路径包括适于对复数输入信号进行频率转换的复合混频器（CM1-CMN），和布置成对复合混频器（CM1-CMN）的输出信号进行滤波并通过的模拟通道选择滤波器（CSF1-CSFN） 频率相关子带（S1-S4）。 控制单元（60）适于接收指示子频带的频率位置的控制数据（S1-S4），并且对于每个处理路径（P1-PN），控制复合混频器（CM1-CMN）的本地振荡器信号， 基于相关子带（S1-S4）的频率位置和处理路径（P1-PN）的信道选择滤波器（CSF1-CSFN）的通带的处理路径（P1-PN），使得 经频率转换的相关子带（S1-S4）出现在处理路径（P1-PN）的信道选择滤波器（CSF1-CSFN）的通带内。 在未使用的路径中监视的失真可用于改善所使用路径的性能。

公开(公告)号：US08351874B2

公开(公告)日：2013-01-08

申请号：US12099550

申请日：2008-04-08

Applicant: Paul Wilkinson Dent ,  Sven Mattisson

Inventor： Paul Wilkinson Dent ,  Sven Mattisson

IPC: H03C1/52

CPC classification number: H04B1/0458

Abstract: Methods and apparatus are disclosed for automatically adjusting antenna impedance match in a wireless transceiver employing phase-amplitude modulation. According to some embodiments of the invention, a wireless transceiver comprises a transmitter circuit and a receiver circuit connected to the antenna by a transmit/receive duplexer. An electronically adjustable matching network is located between the transmitter output and the antenna. To control the adjustable matching network, a directional coupler is located between the transmitter output and the matching network to separate transmit signals reflected from the antenna system, including the antenna, the matching network and the T/R duplexer. The reflected transmit signals are routed to the receiver circuit, which digitizes the reflected signal and determines an antenna reflection coefficient based on the digitized reflected signal and the modulation signal used to create the transmit signal. The complex antenna reflection coefficient is used to determine any adjustment needed to the antenna matching network.

Abstract translation: 公开了用于在采用相位幅度调制的无线收发器中自动调整天线阻抗匹配的方法和装置。 根据本发明的一些实施例，无线收发器包括发射机电路和通过发射/接收双工器连接到天线的接收机电路。 电子可调匹配网络位于发射机输出和天线之间。 为了控制可调匹配网络，定向耦合器位于发射机输出和匹配网络之间，以分离天线系统反射的发射信号，包括天线，匹配网络和T / R双工器。 反射的发射信号被路由到接收机电路，其对反射信号进行数字化，并且基于用于产生发射信号的数字化反射信号和调制信号确定天线反射系数。 复合天线反射系数用于确定天线匹配网络所需的任何调整。

公开(公告)号：US20120252374A1

公开(公告)日：2012-10-04

申请号：US13503168

申请日：2009-10-23

Applicant: Sven Mattisson ,  Pietro Andreani ,  Daniele Mastantuono

Inventor： Sven Mattisson ,  Pietro Andreani ,  Daniele Mastantuono

IPC: H04B1/38 ,  H04B1/10

CPC classification number: H03D1/04 ,  H03D7/12 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/165 ,  H03D2200/0088

Abstract: The present disclosure generally relates to the field of receiver structures in radio communication systems and more specifically to passive mixers in the receiver structure and to a technique for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency. A passive mixer for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency comprises a cancellation component 220 for generating a first cancellation signal for cancelling second order intermodulation components by superimposing the first signal weighted by a cancellation value on the third signal; and a mixing component 231 having a first terminal 232 for receiving the first signal, a second terminal 234 for outputting the second signal, and a third terminal 236 for receiving the first cancellation signal, wherein the mixing component 231 is adapted to provide the second signal as output at the second terminal 234 by mixing the first signal provided as input at the first terminal 232 and the first cancellation signal provided as input at the third terminal 236.

Abstract translation: 本公开通常涉及无线电通信系统中的接收机结构领域，更具体地涉及接收机结构中的无源混频器以及通过使用第三频率将具有第一频率的第一信号转换成具有第二频率的第二信号的技术 信号具有第三频率。 一种无源混频器，用于通过使用具有第三频率的第三信号将具有第一频率的第一信号转换为具有第二频率的第二信号包括消除部件220，用于产生用于通过将第一频率叠加的第二次互调分量 信号由第三信号的抵消值加权; 以及混合部件231，其具有用于接收第一信号的第一端子232，用于输出第二信号的第二端子234和用于接收第一抵消信号的第三端子236，其中混合部件231适于提供第二信号 作为第二端子234处的输出，通过混合在第一端子232处作为输入提供的第一信号和在第三端子236处作为输入提供的第一抵消信号。

公开(公告)号：US08005439B2

公开(公告)日：2011-08-23

申请号：US12501616

申请日：2009-07-13

Applicant: Karl Hakan Torbjorn Gardenfors ,  Sven Mattisson ,  Jacobus Cornelis Haartsen

Inventor： Karl Hakan Torbjorn Gardenfors ,  Sven Mattisson ,  Jacobus Cornelis Haartsen

IPC: H04B1/40

CPC classification number: H04B1/44 ,  H04B1/3833 ,  H04B1/408 ,  H04B1/715 ,  H04B15/00 ,  H04B2001/7152 ,  H04J3/10 ,  H04L5/1461 ,  H04L27/122

Abstract: An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.

Abstract translation: 整个无线电收发器可以完全集成到一个IC芯片中。 为了在芯片上集成IF滤波器，使用具有低IF的外差架构。 单个直接调制的VCO用于传输期间的上转换和接收期间的下变频。 在VCO的振荡器槽中使用接合线作为谐振器。 在空中接口中使用TDD方案来消除串扰或泄漏。 高斯形二进制FSK调制方案用于提供许多其他实现优点。

公开(公告)号：US20110124302A1

公开(公告)日：2011-05-26

申请号：US13015157

申请日：2011-01-27

Applicant: Sven Mattisson ,  Magnus Nilsson

Inventor： Sven Mattisson ,  Magnus Nilsson

IPC: H04B1/04 ,  H03C3/00

CPC classification number: H03C3/40

Abstract: A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

Abstract translation: 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US20110116490A1

公开(公告)日：2011-05-19

申请号：US12773097

申请日：2010-05-04

Applicant: Leif Wilhelmsson ,  Erik Carlberg ,  Sven Mattisson ,  Hans Stattin

Inventor： Leif Wilhelmsson ,  Erik Carlberg ,  Sven Mattisson ,  Hans Stattin

IPC: H04J1/12

CPC classification number: H04W16/14 ,  H04W88/06

Abstract: A communication device has a controller operatively connected to at least a first transceiver and a second transceiver, wherein the first transceiver receives signals on one or more channels within a first frequency band and the second transceiver transmits signals on one or more channels within a second frequency band, wherein the first and second frequency bands are adjacent one another so that each of the first and second frequency bands has an adjacent border and a nonadjacent border. Coexistence between the first and second transceivers is achieved by adjusting receive and/or transmit filters associated with the transceivers to create a guard band that is located more in the first frequency band if the second transceiver is using frequencies close to its adjacent border, and a guard band that is more in the second frequency band if the second transceiver is not using frequencies close to its adjacent border.

Abstract translation: 通信设备具有可操作地连接到至少第一收发器和第二收发器的控制器，其中第一收发器在第一频带内的一个或多个信道上接收信号，并且第二收发器在第二频率内的一个或多个信道上发送信号 带，其中所述第一和第二频带彼此相邻，使得所述第一和第二频带中的每一个具有相邻边界和不相邻的边界。 通过调整与收发器相关联的接收和/或发射滤波器来实现第一和第二收发器之间的共存，以产生更靠近第一频带的保护频带，如果第二收发器使用接近其相邻边界的频率，以及 如果第二收发器不使用靠近其相邻边界的频率，则在第二频带中更多的保护频带。