公开(公告)号：US06975667B2

公开(公告)日：2005-12-13

申请号：US09859704

申请日：2001-05-17

Applicant: Sven Mattisson ,  Jacobus Haartsen ,  Robert Bristow

Inventor： Sven Mattisson ,  Jacobus Haartsen ,  Robert Bristow

IPC: H04B1/38 ,  H04B1/40 ,  H04B7/185 ,  H04L12/56 ,  H04W84/06 ,  H04W84/18 ,  H04W88/06 ,  H04B1/69 ,  H04B1/713

CPC classification number: H04W88/06 ,  H04B1/005 ,  H04B1/3805 ,  H04B1/406 ,  H04B7/18563 ,  H04W84/06 ,  H04W84/18

Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.

Abstract translation: 双无线电通信装置具有用于第一频带的第一无线电装置，诸如蓝牙无线电装置，以及第二无线电装置，例如全球星卫星无线电装置，用于在第二频带中使用的第二无线电装置 到第一个频带。 通信设备还具有耦合到第一和第二无线电设备的控制器。 第一无线电设备可以包括跳频扩频发射机。 此外，第一无线电设备具有采用第一频率范围的第一操作模式。 第一无线电设备还具有采用小于第一频率范围的第二频率范围的第二操作模式。 控制器适于将第一无线电设备设置在其第二操作模式中，当第二无线电设备正在运行时，否则将第一无线电设备设置为其第一操作模式。

公开(公告)号：US20060062165A1

公开(公告)日：2006-03-23

申请号：US11271173

申请日：2005-11-11

Applicant: Karl Hakan Gardenfors ,  Sven Mattisson ,  Jacobus Haartsen

Inventor： Karl Hakan Gardenfors ,  Sven Mattisson ,  Jacobus Haartsen

IPC: H04J3/00 ,  H04B1/40 ,  G08B13/14

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.

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：US06188275B1

公开(公告)日：2001-02-13

申请号：US09274479

申请日：1999-03-23

Applicant: Sven Mattisson ,  Jacobus Haartsen

Inventor： Sven Mattisson ,  Jacobus Haartsen

IPC: H03D300

CPC classification number: H03D3/005 ,  H03J2200/28 ,  H04L27/16

Abstract: A demodulator circuit for demodulating a frequency modulated input signal includes a filter (12) for receiving an incoming input signal and for providing a filtered output signal, a detector (16) for receiving the filtered output signal, and for producing a demodulated output signal therefrom, a tuning circuit (18, 20) which is operable to introduce a test signal into the demodulator circuit in the absence of an incoming input signal, and to vary the frequency response characteristics of at least one of the filter and detector in response to the test signal.

Abstract translation: 用于解调频率调制输入信号的解调器电路包括用于接收输入输入信号并提供经滤波的输出信号的滤波器（12），用于接收滤波后的输出信号的检测器（16），以及用于产生经解调的输出信号 ，调谐电路（18,20），其可操作以在没有输入输入信号的情况下将测试信号引入所述解调器电路中，以及响应于所述滤波器和检测器中的至少一个的频率响应特性而改变 测试信号。

公开(公告)号：US6104238A

公开(公告)日：2000-08-15

申请号：US274331

申请日：1999-03-23

Applicant: Sven Mattisson ,  Jacobus Haartsen

Inventor： Sven Mattisson ,  Jacobus Haartsen

IPC: H03D3/00 ,  H04L27/152 ,  H04L27/14

CPC classification number: H03D3/005 ,  H04L27/152

Abstract: An FM demodulator circuit includes a filter (10) and a detector (14) for receiving a frequency modulated input signal and for providing a demodulated output signal. A tuning circuit (19) is provided for tuning the frequency characteristics of the filter and of the detector. A DC offset estimator (18) is connected to the output of the detector to produce an offset signal representing the estimated DC offset of the demodulated output signal, and to provide the offset signal to the tuning circuit. The tuning circuit is operable to tune the frequency characteristics of the filter and detector in dependence upon the offset signal.

Abstract translation: FM解调器电路包括用于接收调频输入信号并提供解调输出信号的滤波器（10）和检测器（14）。 提供调谐电路（19），用于调谐滤波器和检测器的频率特性。 DC偏移估计器（18）连接到检测器的输出，以产生表示经解调的输出信号的估计的DC偏移的偏移信号，并将偏移信号提供给调谐电路。 调谐电路可操作以根据偏移信号来调谐滤波器和检测器的频率特性。

公开(公告)号：US09825590B2

公开(公告)日：2017-11-21

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: H03D1/04 ,  H03D7/12 ,  H03D7/14 ,  H03D7/16

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.

公开(公告)号：US08976692B2

公开(公告)日：2015-03-10

申请号：US13522662

申请日：2011-01-20

Applicant: Jonas Persson ,  Sven Mattisson

Inventor： Jonas Persson ,  Sven Mattisson

IPC: H04L27/36 ,  H04B1/04 ,  H04B1/30 ,  H04L25/06 ,  H04L27/26 ,  H04L27/00

CPC classification number: H04B1/0475 ,  H04B1/302 ,  H04L25/061 ,  H04L27/2647 ,  H04L27/364 ,  H04L2027/0016

Abstract: A combination of a phase shifter, a measurement receiver, and an offset estimator enable the d.c. offset in the transmit path of a quadrature transmitter to be distinguished from the d.c. offset in the measurement receiver. The measurement receiver performs a first measurement on the transmit path output with a “normal” phase shift of 0 degrees and 90 degrees for in-phase (I) and quadrature (Q) components, and a second measurement with a “special” phase shift for the I and Q components. In one embodiment, the “special” phase shift for the I and Q components is 180 degrees and 270 degrees, respectively.

Abstract translation: 移相器，测量接收器和偏移估计器的组合使得直流 在正交发射机的发射路径中的偏移量与d.c.进行区分。 在测量接收器中偏移。 测量接收机对于同相（I）和正交（Q）分量以0度和90度的“正常”相移对发射路径输出执行第一测量，并且具有“特殊”相移的第二测量 用于I和Q组件。 在一个实施例中，I和Q分量的“特殊”相移分别为180度和270度。

公开(公告)号：US08811241B2

公开(公告)日：2014-08-19

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: H04J1/00

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 频带，其中第一和第二频带彼此相邻，使得第一和第二频带中的每一个具有相邻的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。

公开(公告)号：US08626086B2

公开(公告)日：2014-01-07

申请号：US13205984

申请日：2011-08-09

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：US08199039B2

公开(公告)日：2012-06-12

申请号：US12997602

申请日：2009-05-15

Applicant: Sven Mattisson

Inventor： Sven Mattisson

IPC: H03M3/04

CPC classification number: H03M3/422 ,  H03M3/41

Abstract: A delta-sigma analog-to-digital converter (ADC) is disclosed. The ADC comprises a forward path structure; a feedback structure; and a first subtraction element arranged to receive an input signal to the delta-sigma analog-to-digital converter and a feedback signal from the feedback structure and output a difference signal, which is a difference between the input signal and the feedback signal, to the forward path structure, wherein the forward path structure comprises a quantizer arranged to convert an analog input signal to a digital representation; a forward path filter arranged to input the difference signal and provide an output signal to the quantizer, and the feedback structure comprises a first and a second branch, wherein the first branch comprises a first digital-to-analog converter arranged to provide output signals to the subtraction element; and a first feedback filter having a gain to frequency characteristic such that frequencies that are desired in the analog-to-digital conversion, compared to undesired frequencies, are attenuated in the feedback structure, and the second branch comprises a second digital-to-analog converter, wherein the first and second branches are fed by the digital representation and the outputs of the first and second branches are merged in a second subtraction element arranged to output a signal, which is a difference between the signals from the first and second branches, to the first subtraction element. A radio receiver, communication apparatus, method for analog-to-digital conversion, and computer program for implementing the method are also disclosed.

Abstract translation: 公开了一种Δ-Σ模数转换器（ADC）。 ADC包括前向路径结构; 反馈结构; 以及第一减法元件，其布置成接收到Δ-Σ模数转换器的输入信号和来自反馈结构的反馈信号，并将作为输入信号和反馈信号之间的差的差分信号输出到 所述前向路径结构，其中所述前向路径结构包括被配置为将模拟输入信号转换为数字表示的量化器; 一个前向路径滤波器，被布置成输入差分信号并向量化器提供输出信号，并且反馈结构包括第一和第二分支，其中第一分支包括第一数模转换器，其被布置成提供输出信号 减法元素; 以及具有增益至频率特性的第一反馈滤波器，使得与反馈结构相比，在模拟数字转换中期望的频率在反馈结构中衰减，并且第二分支包括第二数模转换器 转换器，其中所述第一和第二分支由所述数字表示馈送，并且所述第一和第二分支的输出被合并在被布置为输出作为来自所述第一和第二分支的信号之间的差的信号的第二减法元件中， 到第一个减法元素。 还公开了一种用于模数转换的无线电接收机，通信装置，方法和用于实现该方法的计算机程序。