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1. 发明申请

US20060038624A1 Oscillator system, method of providing a resonating signal and a communications system employing the same 有权
标题翻译：振荡器系统，提供谐振信号的方法和采用该谐振信号的通信系统
公开(公告)号：US20060038624A1
公开(公告)日：2006-02-23
申请号：US10924220
申请日：2004-08-23
申请人： Chih-Ming Hung , Robert Staszewski , Dirk Leipol
发明人： Chih-Ming Hung , Robert Staszewski , Dirk Leipol
IPC分类号： H03B5/12 , H03K3/282
CPC分类号： H03B5/08
摘要： An nth-order oscillator system for providing a resonating signal, a method of generating a resonating signal and a communications system. In one embodiment, the nth-order oscillator system, n being greater than two, includes (1) an amplifier configured to provide an intermediate signal and (2) a feedback loop including an nth-order complex LC tank and configured to generate the resonating signal by feeding back a complex-filtered form of the intermediate signal to the amplifier.
摘要翻译：一种用于提供谐振信号的第n / O级振荡器系统，产生谐振信号的方法和通信系统。在一个实施例中，n大于2的n阶振荡器系统包括（1）被配置为提供中间信号的放大器和（2）包括n + 并且被配置为通过将中间信号的复数滤波形式反馈到放大器来产生谐振信号。

2. 发明申请

US20080136543A1 Oscillator System, Method Of Providing A Resonating Signal And A Communications System Employing The Same 有权
标题翻译：振荡器系统，提供谐振信号的方法和使用它的通信系统
公开(公告)号：US20080136543A1
公开(公告)日：2008-06-12
申请号：US12030123
申请日：2008-02-12
申请人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
发明人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
IPC分类号： H03B5/12
CPC分类号： H03B5/08
摘要： An nth-order oscillator system for providing a resonating signal, a method of generating a resonating signal and a communications system. In one embodiment, the nth-order oscillator system, n being greater than two, includes (1) an amplifier configured to provide an intermediate signal and (2) a feedback loop including an nth-order complex LC tank and configured to generate the resonating signal by feeding back a complex-filtered form of the intermediate signal to the amplifier.
摘要翻译：一种用于提供谐振信号的第n / O级振荡器系统，产生谐振信号的方法和通信系统。在一个实施例中，n大于2的n阶振荡器系统包括（1）被配置为提供中间信号的放大器和（2）包括n + 并且被配置为通过将中间信号的复数滤波形式反馈到放大器来产生谐振信号。

3. 发明授权

US07692504B2 Oscillator system, method of providing a resonating signal and a communications system employing the same 有权
标题翻译：振荡器系统，提供谐振信号的方法和采用该谐振信号的通信系统
公开(公告)号：US07692504B2
公开(公告)日：2010-04-06
申请号：US12030123
申请日：2008-02-12
申请人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
发明人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
IPC分类号： H03B5/18
CPC分类号： H03B5/08
摘要： An nth-order oscillator system for providing a resonating signal, a method of generating a resonating signal and a communications system. In one embodiment, the nth-order oscillator system, n being greater than two, includes (1) an amplifier configured to provide an intermediate signal and (2) a feedback loop including an nth-order complex LC tank and configured to generate the resonating signal by feeding back a complex-filtered form of the intermediate signal to the amplifier.
摘要翻译：用于提供谐振信号的n阶振荡器系统，产生谐振信号的方法和通信系统。在一个实施例中，n大于2的n阶振荡器系统包括（1）被配置为提供中间信号的放大器和（2）包括第n级复数LC容器的反馈回路，并被配置为产生谐振信号通过将中间信号的复数滤波形式反馈到放大器。

4. 发明授权

US07330082B2 Oscillator system, method of providing a resonating signal and a communications system employing the same 有权
标题翻译：振荡器系统，提供谐振信号的方法和采用该谐振信号的通信系统
公开(公告)号：US07330082B2
公开(公告)日：2008-02-12
申请号：US10924220
申请日：2004-08-23
申请人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
发明人： Chih-Ming Hung , Robert B. Staszewski , Dirk Leipol
IPC分类号： H03B5/18
CPC分类号： H03B5/08
摘要： An nth-order oscillator system for providing a resonating signal, a method of generating a resonating signal and a communications system. In one embodiment, the nth-order oscillator system, n being greater than two, includes (1) an amplifier configured to provide an intermediate signal and (2) a feedback loop including an nth-order complex LC tank and configured to generate the resonating signal by feeding back a complex-filtered form of the intermediate signal to the amplifier.
摘要翻译：一种用于提供谐振信号的第n / O级振荡器系统，产生谐振信号的方法和通信系统。在一个实施例中，n大于2的n阶振荡器系统包括（1）被配置为提供中间信号的放大器和（2）包括n + 并且被配置为通过将中间信号的复数滤波形式反馈到放大器来产生谐振信号。

5. 发明申请

US20050287967A1 Low noise high isolation transmit buffer gain control mechanism 有权
标题翻译：低噪声高隔离传输缓冲器增益控制机制
公开(公告)号：US20050287967A1
公开(公告)日：2005-12-29
申请号：US11115815
申请日：2005-04-26
申请人： Chih-Ming Hung , Francis Cruise , Dirk Leipold , Robert Staszewski
发明人： Chih-Ming Hung , Francis Cruise , Dirk Leipold , Robert Staszewski
IPC分类号： H01Q11/12 , H03F1/32 , H03F3/191 , H04B1/04
CPC分类号： H04B1/0483 , H03F1/3241 , H03F1/3294 , H03F3/191 , H03F2200/331
摘要： A novel apparatus for a low noise, high isolation, all digital transmit buffer gain control mechanism. The gain control scheme is presented in the context of an all digital direct digital-to-RF amplitude converter (DRAC), which efficiently combines the traditional transmit chain functions of upconversion, I and Q combining, D/A conversion, filtering, buffering and RF output amplitude control into a single circuit. The transmit buffer is constructed as an array of NMOS switches. The control logic for each NMOS switch comprises a pass-gate type AND gate whose inputs are the phase modulated output of an all digital PLL and the amplitude control word from a digital control block. Power control is accomplished by recognizing the impairments suffered by a pseudo class E pre-power amplifier (PPA) when implemented in a CMOS process. Firstly, the NMOS switches of the array have significant on resistance and thus can only draw a limited current from the an RF choke when the input waveform is high. The significant on resistance of the NMOS switches is exploited in the DRAC circuit to introduce power control of the transmitted waveform and permits a fully digital method of controlling the RF output power.
摘要翻译：一种低噪声，高隔离，全数字发送缓冲增益控制机制的新型设备。增益控制方案在全数字直接数/频幅度转换器（DRAC）的上下文中呈现，该转换器有效地结合了上变频，I和Q组合，D / A转换，滤波，缓冲和 RF输出幅度控制成单个电路。发送缓冲器构造为NMOS开关阵列。每个NMOS开关的控制逻辑包括一个通门型AND门，其输入是全数字PLL的相位调制输出和来自数字控制块的幅度控制字。通过在CMOS工艺中实现时，通过识别伪E类预功率放大器（PPA）所遭受的损伤来实现功率控制。首先，阵列的NMOS开关具有大的导通电阻，因此当输入波形为高时，只能从RF扼流圈画出有限的电流。在DRAC电路中利用NMOS开关的重要导通电阻来引入发射波形的功率控制，并允许控制RF输出功率的全数字方法。

6. 发明申请

US20070008199A1 Negative contributive offset compensation in a transmit buffer utilizing inverse clocking 有权
标题翻译：使用反向时钟的发送缓冲器中的负贡献偏移补偿
公开(公告)号：US20070008199A1
公开(公告)日：2007-01-11
申请号：US11178993
申请日：2005-07-11
申请人： Sameh Rezeq , Dirk Leipold , Robert Staszewski , Chih-Ming Hung
发明人： Sameh Rezeq , Dirk Leipold , Robert Staszewski , Chih-Ming Hung
IPC分类号： H03M1/06
CPC分类号： H03F1/0205 , H03F1/3241 , H03F2200/331 , H03F2200/375 , H03M3/356 , H03M3/50 , H03M7/3026 , H03M7/3037 , H04L27/368
摘要： A novel method and apparatus for a negative contributive offset compensation mechanism for a transmit buffer adapted to compensate for the positive offset generated by higher order sigma-delta modulators used to amplitude modulate the transmit buffer. The positive outputs from the sigma-delta modulator are processed differently than the negative outputs. The inverters associated with the negative outputs in the sigma-delta modulator are removed and the clock signal used to drive the transistors corresponding to the negative outputs is negated or shifted 180 degrees from the clock used to drive the transistors corresponding to the positive outputs. A non-inverted version of the clock is used with the positive outputs and an inverse clock is used with the negative outputs. Use of the inverse clock causes a negative contributive offset to be generated that is added on the second half cycle of each clock. The result is an offset compensated RF output signal having zero offset.
摘要翻译：一种用于发射缓冲器的负贡献偏移补偿机制的新颖方法和装置，适用于补偿由用于幅度调制发射缓冲器的高阶Σ-Δ调制器产生的正偏移。来自Σ-Δ调制器的正输出的处理方式与负输出不同。与Σ-Δ调制器中的负输出相关联的反相器被去除，并且用于驱动对应于负输出的晶体管的时钟信号与用于驱动对应于正输出的晶体管的时钟相反或偏移180度。时钟的非反相版本与正输出一起使用，反时限与负输出一起使用。使用逆时钟将产生在每个时钟的第二个半周期上添加的负贡献偏移。结果是具有零偏移的偏移补偿RF输出信号。

7. 发明申请

US20120306475A1 SYSTEM AND METHOD FOR IMPLEMENTING LOW-COST ELECTRONIC GYROSCOPES AND ACCELEROMETER 审中-公开
标题翻译：用于实现低成本电子陀螺仪和加速度计的系统和方法
公开(公告)号：US20120306475A1
公开(公告)日：2012-12-06
申请号：US13566595
申请日：2012-08-03
申请人： Chih-Ming Hung , Marco Corsi
发明人： Chih-Ming Hung , Marco Corsi
IPC分类号： G01R23/12
CPC分类号： G01C19/64 , G01R25/00
摘要： Accelerometers have a number of wide-ranging uses, and it is desirable to both increase their accuracy while decreasing size. Here, millimeter or sub-millimeter wavelength accelerometers are provided which has the advantage of having the high accuracy of an optical accelerometer, while being compact. Additionally, because millimeter or sub-millimeter wavelength signals are employed, cumbersome and awkward on-chip optical devices and bulky optical mediums can be avoided.
摘要翻译：加速度计有许多广泛的用途，并且希望在减小尺寸的同时提高精度。这里，提供毫米波或亚毫米波长的加速度计，其具有在紧凑的同时具有光学加速度计的高精度的优点。此外，由于采用了毫米波或亚毫米波长的信号，因此可以避免繁琐笨重的片上光学器件和庞大的光学介质。

8. 发明授权

US08217735B2 Harmonic suppression device 有权
标题翻译：谐波抑制装置
公开(公告)号：US08217735B2
公开(公告)日：2012-07-10
申请号：US12603654
申请日：2009-10-22
申请人： Shyue-Dar Chen , Chih-Ming Hung
发明人： Shyue-Dar Chen , Chih-Ming Hung
IPC分类号： H03H7/00 , H03F3/213 , H04B1/04
CPC分类号： H01P1/20345 , H03F1/32 , H03F3/60
摘要： A harmonic suppression device includes a multilayer printed circuit board (PCB). The multilayer PCB includes a first layer, a second layer, and a third layer. The third layer is connected to the ground. The first layer is configured with a power amplifier, an input microstrip, a voltage divider microstrip, and an output microstrip. The power amplifier is operable to amplify radio frequency (RF) signals input using the input microstrip and to output the amplified RF signals using the output microstrip. The second layer is configured with a first microstrip and a second microstrip. One end of each of the first and second microstrips is connected to an alternative one of the first layer and the third layer by vias, and the other ends of the first and second microstrips are unattached so as to suppress harmonics on the power amplifier.
摘要翻译：谐波抑制装置包括多层印刷电路板（PCB）。多层PCB包括第一层，第二层和第三层。第三层连接到地面。第一层配置有功率放大器，输入微带线，分压器微带线和输出微带线。功率放大器可用于放大使用输入微带输入的射频（RF）信号，并使用输出微带输出放大的RF信号。第二层配置有第一微带和第二微带。第一和第二微带中的每一个的一端通过通孔连接到第一层和第三层中的另一个，并且第一和第二微带的另一端未连接，以便抑制功率放大器上的谐波。

9. 发明授权

US07949323B1 Local oscillator leakage counterbalancing in a receiver 有权
标题翻译：接收机本地振荡器泄漏平衡
公开(公告)号：US07949323B1
公开(公告)日：2011-05-24
申请号：US11679101
申请日：2007-02-26
申请人： Khurram Muhammad , Chih-Ming Hung , Imtinan Elahi
发明人： Khurram Muhammad , Chih-Ming Hung , Imtinan Elahi
IPC分类号： H04B1/10
CPC分类号： H04B15/06 , H04B1/30
摘要： The present invention provides a local oscillator (LO) leakage controller for use with a receiver. In one embodiment, the LO leakage controller includes a comparison unit configured to process an LO leakage error signal from the receiver to provide a leakage cancellation signal. Additionally, the LO leakage controller also includes a leakage counterbalance unit coupled to the comparison unit and configured to adapt the leakage cancellation signal to the receiver to counterbalance LO leakage in the receiver.
摘要翻译：本发明提供了一种与接收机一起使用的本地振荡器（LO）泄漏控制器。在一个实施例中，LO泄漏控制器包括比较单元，其被配置为处理来自接收器的LO泄漏误差信号以提供泄漏消除信号。此外，LO泄漏控制器还包括耦合到比较单元并被配置为将泄漏抵消信号适配到接收器以抵消接收器中的LO泄漏的泄漏平衡单元。

10. 发明授权

US07863994B2 System and method for increasing radio frequency (RF) microwave inductor-capacitor (LC) oscillator frequency tuning range 有权
标题翻译：提高射频（RF）微波电感 - 电容（LC）振荡器频率调谐范围的系统和方法
公开(公告)号：US07863994B2
公开(公告)日：2011-01-04
申请号：US12018856
申请日：2008-01-24
申请人： Chih-Ming Hung , Dirk Leipold , Nathan Barton
发明人： Chih-Ming Hung , Dirk Leipold , Nathan Barton
IPC分类号： H03B5/08
CPC分类号： H03B5/1296 , H03B5/1209 , H03B5/1256 , H03B5/1287
摘要： System and method for increasing the frequency tuning range of a RF/microwave LC oscillator. A preferred embodiment comprises a voltage controlled oscillator (VCO) configured to generate an output signal at a frequency that is dependent upon a magnitude of an input voltage level and an effective inductance of an inductive load and a variable inductor coupled to the VCO. The variable inductor comprises a primary inductor coupled to the VCO to produce a magnetic field based upon a current flowing through the primary inductor and a secondary inductor magnetically coupled to the primary inductor, the secondary inductor to affect the magnitude of the effective inductance of the primary inductor.
摘要翻译：用于增加RF /微波LC振荡器的频率调谐范围的系统和方法。优选实施例包括压控振荡器（VCO），其被配置为以取决于输入电压电平的大小和耦合到VCO的电感性负载和可变电感器的有效电感的频率来产生输出信号。可变电感器包括耦合到VCO的初级电感器，以基于流过初级电感器的电流和与主电感器磁耦合的次级电感器产生磁场，次级电感器影响主电感器的有效电感的幅度电感。

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