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31. 发明申请

US20060079195A1 Low if receiver systems and methods 有权
标题翻译：低接收机系统和方法
公开(公告)号：US20060079195A1
公开(公告)日：2006-04-13
申请号：US10963049
申请日：2004-10-12
申请人： Norman Beamish , William Domino , Morten Damgaard
发明人： Norman Beamish , William Domino , Morten Damgaard
IPC分类号： H04B17/00 , H04B1/26
CPC分类号： H04L27/3863 , H04B1/1036 , H04B1/109 , H04B1/30
摘要： Embodiments of a low intermediate frequency system and method are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio frequency signal, downconverting the radio frequency signal to a downconverted signal comprising an in-phase component and quadrature component, and estimating a gain and phase imbalance between the in-phase component and the quadrature component.
摘要翻译：公开了一种低中频系统和方法的实施例。在一个实施例中，公开了一种用于操作接收机的方法，其包括：接收射频信号，将射频信号下变频到包括同相分量和正交分量的下变频信号，以及估计无线电频率信号之间的增益和相位不平衡同相分量和正交分量。

32. 发明授权

US06731693B1 System of and method for compensating a baseband signal to reduce third order modulation distortion 失效
标题翻译：用于补偿基带信号以减少三阶调制失真的系统和方法
公开(公告)号：US06731693B1
公开(公告)日：2004-05-04
申请号：US09515538
申请日：2000-02-29
申请人： Morten Damgaard
发明人： Morten Damgaard
IPC分类号： H04L2549
CPC分类号： H04L27/206 , H04L27/367
摘要： A system for and method of overcoming third order modulation distortion in which a baseband signal is predistorted using one or more parameters configured to reduce or eliminate the third order modulation distortion.
摘要翻译：一种用于克服三阶调制失真的系统和方法，其中使用被配置为减少或消除三阶调制失真的一个或多个参数来预失真基带信号。

33. 发明授权

US06650875B1 Transmitter architecture having a secondary phase-error correction loop including an amplitude reconstruction system 有权
标题翻译：具有包括振幅重建系统的二次相位误差校正回路的发射机架构
公开(公告)号：US06650875B1
公开(公告)日：2003-11-18
申请号：US09650831
申请日：2000-08-30
申请人： Dimitriy Rozenblit , William J. Domino , Morten Damgaard , Nooshin D. Vakilian
发明人： Dimitriy Rozenblit , William J. Domino , Morten Damgaard , Nooshin D. Vakilian
IPC分类号： H04B102
CPC分类号： H03F1/3247 , H03F2200/294 , H03F2200/372
摘要： A system for using a translation loop upconverter and power amplifier including a secondary phase-error correction loop uses the output of the upconverter to lock a feedback loop during a time in which the output of the power amplifier is insufficient to provide feedback to the upconverter. After the power amplifier has developed sufficient power to provide feedback to the upconverter, the feedback to the upconverter is taken from the output of the power amplifier. By placing a phase detector and phase shifter in the secondary feedback path taken from the output of the power amplifier, any phase distortion present in the system can be detected and corrected.
摘要翻译：用于使用平移环上变频器和包括次相位误差校正环路的功率放大器的系统使用上变频器的输出在功率放大器的输出不足以向上变频器提供反馈的时间期间锁定反馈回路。在功率放大器已经开发足够的功率以向上变频器提供反馈之后，向上变频器的反馈取自功率放大器的输出。通过将相位检测器和移相器放置在从功率放大器的输出端取得的次级反馈路径中，可以检测和校正系统中存在的任何相位失真。

34. 发明授权

US06415001B1 System and process for shared frequency source multi-band transmitters and receivers 失效
标题翻译：共享频率源多频段发射机和接收机的系统和过程
公开(公告)号：US06415001B1
公开(公告)日：2002-07-02
申请号：US09203645
申请日：1998-12-01
申请人： Leo L. Li , William John Domino , Morten Damgaard
发明人： Leo L. Li , William John Domino , Morten Damgaard
IPC分类号： H04L2700
CPC分类号： H04B1/0078 , H03D7/166 , H04B1/005 , H04B1/006 , H04B1/0082 , H04B1/406
摘要： A communication system for communicating RF signals at any one of a plurality of communication standards through a common antenna is disclosed. The communication system comprises a transmitting unit, a receiving unit, an IF LO frequency generator, an RF LO frequency generator, a reference source, and an antenna. The transmitting unit has a transmit RF information signal output, a modulator for transforming a transmit baseband information signal into a modulated transmit IF information signal, and an upconverter for upconverting the transmit IF information signal into a transmit RF information signal. The receiving unit has a receive RF information signal input, a first downconverter for downconverting a receive RF information signal to a first receive IF information signal, a second downconverter for downconverting the first receive IF information signal to a second receive IF information signal, an analog-to-digital converter for converting the second receive IF information signal to a receive digital information signal, and a digital signal processor for digitally filtering the receive digital information signal. By selecting expedient IF LOs and RF LOs, the IF LO and RF LO frequency generators can be shared between the transmitting and receiving units, and transmit and receive filters can be shared between different communication standards.
摘要翻译：公开了一种用于通过公共天线在多个通信标准中的任一个通信RF信号的通信系统。通信系统包括发射单元，接收单元，IF LO频率发生器，RF LO频率发生器，参考源和天线。发送单元具有发送RF信息信号输出，用于将发送基带信息信号变换为调制的发送IF信息信号的调制器，以及用于将发送IF信息信号上变频为发送RF信息信号的上变频器。接收单元具有接收RF信息信号输入，用于将接收RF信息信号下变频到第一接收IF信息信号的第一下变频器，用于将第一接收IF信息信号下变频到第二接收IF信息信号的第二下变频器，数字转换器，用于将第二接收IF信息信号转换为接收数字信息信号;以及数字信号处理器，用于对接收数字信息信号进行数字滤波。通过选择方便的IF LO和RF LO，IF LO和RF LO频率发生器可以在发射和接收单元之间共享，并且发射和接收滤波器可以在不同的通信标准之间共享。

35. 发明授权

US06150890A Dual band transmitter for a cellular phone comprising a PLL 有权
标题翻译：包括PLL的蜂窝电话的双频带发射机
公开(公告)号：US06150890A
公开(公告)日：2000-11-21
申请号：US163798
申请日：1998-09-30
申请人： Morten Damgaard , Leo L. Li
发明人： Morten Damgaard , Leo L. Li
IPC分类号： H03J5/24 , H03L7/093 , H03L7/183 , H03L7/185 , H04B1/40 , H03L7/18
CPC分类号： H04B1/005 , H03J5/242 , H03J5/244 , H03L7/093 , H03L7/183 , H03L7/185 , H04B1/406 , H03L2207/10
摘要： Disclosed is a dual band wireless phone, such as a cellular phone for a mobile communications system, with a dual band transmitter that includes a phase-locked loop (PLL). The dual band transmitter includes first and second power amplifiers and the PLL. The first power amplifier has a first input for a first signal at a first radio frequency band, and a first output for an amplified first signal. The second power amplifier has a second input for a second signal at a second radio frequency band and a second output for an amplified second signal. The outputs of the power amplifiers are connectable to an antenna. The PLL generates two output frequency ranges and includes a voltage-controlled oscillator (VCO) which has a first output connected to the first power amplifier and generates a first signal. A frequency multiplier has an input connected to the first output of the VCO and a second output connected to the second power amplifier. The frequency multiplier receives the first signal and generates the second signal.
摘要翻译：公开了一种双频无线电话，例如用于移动通信系统的蜂窝电话，具有包括锁相环（PLL）的双频带发射机。双频带发射机包括第一和第二功率放大器和PLL。第一功率放大器具有用于第一无线电频带处的第一信号的第一输入和用于放大的第一信号的第一输出。第二功率放大器具有用于第二无线电频带处的第二信号的第二输入和用于放大的第二信号的第二输出。功率放大器的输出可连接到天线。 PLL产生两个输出频率范围，并且包括压控振荡器（VCO），其具有连接到第一功率放大器的第一输出并产生第一信号。倍频器具有连接到VCO的第一输出的输入端和连接到第二功率放大器的第二输出端。倍频器接收第一信号并产生第二信号。

36. 发明授权

US6019672A Grinding/polishing cover sheet for placing on a rotatable grinding/polishing disc 失效
标题翻译：研磨/抛光覆盖片放置在可旋转的研磨/抛光盘上
公开(公告)号：US6019672A
公开(公告)日：2000-02-01
申请号：US640813
申请日：1996-05-08
申请人： Morten Damgaard
发明人： Morten Damgaard
IPC分类号： B24B37/24 , B24B37/26 , B24D7/06 , B24D9/00 , B24D11/00 , B24D3/02
CPC分类号： B24B37/26 , B24B37/24 , B24D11/00 , B24D7/06 , B24D9/00
摘要： A grinding/polishing cover sheet for placing on a rotatable grinding/polishing disc (3) consists of a thin foil (1), to which a coating (2) of a hard composite material has been applied through a stencil with or without an associated serigraphic membrane. The foil (1) is stiff in its own plane, but flexible perpendicularly thereto. The composite layer may consist of a matrix of artificial resin with one or more substances embedded therein, e.g. particles of one or more metals or ceramic materials, or fibers or particles of synthetic substances or graphite. The foil can be held in position on the grinding/polishing disc (3) by magnetism or by glueing.
摘要翻译： PCT No.PCT / DK95 / 00134 Sec。 371日期：1996年5月8日 102（e）日期1996年5月8日PCT提交1995年3月28日PCT公布。公开号WO96 / 07508 日期1996年3月14日用于放置在可旋转研磨/抛光盘（3）上的研磨/抛光覆盖片由薄箔（1）组成，硬质复合材料涂层（2）已经通过模板有或没有相关的丝印膜。箔（1）在其自身的平面中是刚性的，但是垂直于柔性箔。复合层可以由一种植入其中的一种或多种物质的人造树脂基质组成。一种或多种金属或陶瓷材料的颗粒，或合成物质或石墨的纤维或颗粒。箔可以通过磁力或通过胶合保持在研磨/抛光盘（3）上的适当位置。

37. 发明授权

US6005443A Phase locked loop frequency synthesizer for multi-band application 失效
标题翻译：用于多频段应用的锁相环频率合成器
公开(公告)号：US6005443A
公开(公告)日：1999-12-21
申请号：US044281
申请日：1998-03-19
申请人： Morten Damgaard , Leo Li
发明人： Morten Damgaard , Leo Li
IPC分类号： H03J5/24 , H03L7/093 , H03L7/183 , H03L7/185 , H04B1/40 , H03L7/18
CPC分类号： H04B1/005 , H03J5/242 , H03J5/244 , H03L7/093 , H03L7/183 , H03L7/185 , H04B1/406 , H03L2207/10
摘要： A frequency synthesizer for generating two or more output frequency ranges using a Phase Locked Loop (PLL) circuit having a single voltage-controlled oscillator (VCO). In a first embodiment, a frequency multiplier is connected to the output of the VCO. The output of the VCO and the output of the frequency multiplier are selectably fed back, depending upon which output frequency is desired. The output frequency may be taken directly from the VCO or the frequency multiplier. When the output frequency is taken from the output of the frequency multiplier, a control signal adjusts the gain of the phase detector and/or loop filter in order to compensate for the loop gain caused by the frequency multiplier. In a second embodiment, instead of adjusting the phase detector and/or loop filter gain, the values of the N and M dividers are adjusted. In a third embodiment, a frequency multiplier is connected to the output of the VCO and multiplies the output by a predetermined multiplier value. The N divider value is adjusted by a control signal, such that when the output is taken from the frequency multiplier, the ratio N/M is set equal to the predetermined multiplier value. In a fourth embodiment, the M value, the N value, the phase detector gain and the loop filter gain may all be adjusted in the circuit of the third embodiment, in order to keep the N/M ratio equal to the multiplier "H," and to compensate for the loop gain caused by changing the value of M. The technique described herein is useful for generating constant amplitude phase or frequency modulated signals like the radio signals defined for the GSM or DCS 1800 bands.
摘要翻译：一种用于使用具有单个压控振荡器（VCO）的锁相环（PLL）电路产生两个或多个输出频率范围的频率合成器。在第一实施例中，倍频器连接到VCO的输出端。 VCO的输出和倍频器的输出可根据需要的输出频率进行选择反馈。输出频率可以直接从VCO或倍频器获取。当输出频率取自倍频器的输出时，控制信号调节相位检测器和/或环路滤波器的增益，以补偿由倍频器引起的环路增益。在第二实施例中，代替调整相位检测器和/或环路滤波器增益，N和M分频器的值被调整。在第三实施例中，倍频器连接到VCO的输出，并将输出乘以预定乘数值。通过控制信号调整N分频器值，使得当从倍频器输出时，将比率N / M设置为等于预定乘数值。在第四实施例中，为了保持N / M比等于乘数“H”，在第三实施例的电路中，可以全部调整M值，N值，相位检测器增益和环路滤波器增益， “并且补偿由改变M的值引起的环路增益。这里描述的技术可用于产生恒定幅度相位或频率调制信号，如为GSM或DCS 1800频段定义的无线电信号。

38. 发明授权

US10063266B2 Method and system for a baseband cross-bar 有权
公开(公告)号：US10063266B2
公开(公告)日：2018-08-28
申请号：US13366803
申请日：2012-02-06
申请人： Raja Pullela , Sheng Ye , Morten Damgaard
发明人： Raja Pullela , Sheng Ye , Morten Damgaard
IPC分类号： H04B7/08 , H04B1/18
CPC分类号： H04B1/18
摘要： Methods and systems for a baseband cross-bar may comprise receiving one or more radio frequency (RF) signals in a wireless communication device via antennas coupled to a plurality of receiver paths in the wireless device. The received RF signals may be converted to baseband frequencies. One or more of the down-converted signals may be coupled to receiver paths utilizing a baseband cross-bar. The baseband cross-bar may comprise a plurality of switches, which may comprise CMOS transistors. In-phase and quadrature signals may be processed in the one or more of the plurality of receiver paths. The one or more RF signals comprise cellular signals and/or global navigation satellite signals. A single-ended received RF signal may be converted to a differential signal in one or more of the plurality of receiver paths. The baseband cross-bar may be controlled utilizing a reduced instruction set computing (RISC) processor.

39. 发明授权

US08843094B2 Method and system for blocker detecton and automatic gain control 有权
标题翻译：阻塞检测方法和系统及自动增益控制
公开(公告)号：US08843094B2
公开(公告)日：2014-09-23
申请号：US12853131
申请日：2010-08-09
申请人： Walid Ahmed , John Leung , Theodoros Georgantas , Morten Damgaard , Nelson Sollenberger
发明人： Walid Ahmed , John Leung , Theodoros Georgantas , Morten Damgaard , Nelson Sollenberger
IPC分类号： H04B1/06 , H04B7/00 , H04W52/24 , H04W52/52 , H04B17/00
CPC分类号： H04W52/52 , H04B17/318 , H04W52/245 , H04W52/246
摘要： Aspects of a method and system for integrated blocker detection and automatic gain control are provided. In this regard, a communication device may generate one or more first signal strength indications based on a strength of a received signal at a first point in the analog front-end of the communication device. The communication device may generate one or more second signal strength indications based on a strength of the received signal at a second point in a digital processing module of the communication device. The first point in the analog front-end may be an input or an output of a down-conversion mixer. The second point in the digital processing module may be an output of an analog-to-digital converter or an output of a channel selection filter. The communication device may control, utilizing the first signal strength indication(s) and the second signal strength indication(s), a gain of one or more components of the communication device.
摘要翻译：提供了一种用于集成阻断检测和自动增益控制的方法和系统的方面。在这方面，通信设备可以基于在通信设备的模拟前端的第一点处的接收信号的强度来产生一个或多个第一信号强度指示。通信设备可以基于通信设备的数字处理模块中的第二点处的接收信号的强度来生成一个或多个第二信号强度指示。模拟前端的第一点可以是下变频混频器的输入或输出。数字处理模块中的第二点可以是模数转换器的输出或通道选择滤波器的输出。通信设备可以利用第一信号强度指示和第二信号强度指示来控制通信设备的一个或多个组件的增益。

40. 发明授权

US08285239B2 Receiver second order intermodulation correction system and method 有权
标题翻译：接收机二阶互调校正系统及方法
公开(公告)号：US08285239B2
公开(公告)日：2012-10-09
申请号：US13253030
申请日：2011-10-04
申请人： Alyosha Molnar , Morten Damgaard , Geoff Hatcher , Kenneth Chai-en Wu
发明人： Alyosha Molnar , Morten Damgaard , Geoff Hatcher , Kenneth Chai-en Wu
IPC分类号： H04B1/10 , H04L25/08
CPC分类号： H04B1/30 , H04B1/109
摘要： A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.
摘要翻译：提供一种用于在直接转换接收机中校正二阶互调产物的系统。该系统包括接收数据信号和二阶互调估计信号并产生交叉协方差值的互协方差系统。自动协方差系统接收二阶互调估计信号并产生自协方差值。缓冲系统存储二阶互调产物校正因子。分频器接收交叉协方差值，自协方差值和二阶互调乘积校正因子，并生成运行平均二阶互调乘积校正因子。

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