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81. 发明授权

US07944298B2 Low noise and low input capacitance differential MDS LNA 有权
标题翻译：低噪声和低输入电容差分MDS LNA
公开(公告)号：US07944298B2
公开(公告)日：2011-05-17
申请号：US11959196
申请日：2007-12-18
申请人： Jose Cabanillas , Prasad S. Gudem , Namsoo Kim , Cristian Marcu , Anup Savla
发明人： Jose Cabanillas , Prasad S. Gudem , Namsoo Kim , Cristian Marcu , Anup Savla
IPC分类号： H03F3/45
CPC分类号： H03F3/45188 , H03F1/3205 , H03F1/3211 , H03F2203/45318 , H03F2203/45396
摘要： A differential low noise amplifier (LNA) involves two main amplifying transistors biased in saturation, and two cancel transistors biased in sub-threshold. In one example, the gates of the cancel transistors are coupled to the drains of main transistors, in a symmetrical and cross-coupled fashion. The main transistors are source degenerated. Because the gates of cancel transistors are not coupled to the differential input leads of the LNA, the input capacitance of the LNA is reduced. Noise introduced into the LNA output due to the cancel transistors being biased in the sub-threshold region is reduced because there are two stages. The first stage involves the main transistors, and the second stage involves the cancel transistors. By increasing the gain of the first stage and decreasing the gain of the second stage, overall LNA gain is maintained while reducing the noise that the sub-threshold biased transistors contribute to the LNA output.
摘要翻译：差分低噪声放大器（LNA）涉及两个偏置饱和的主放大晶体管，两个取消晶体管偏置为次阈值。在一个示例中，取消晶体管的栅极以对称和交叉耦合的方式耦合到主晶体管的漏极。主晶体管是源极退化的。因为取消晶体管的栅极没有耦合到LNA的差分输入引线，所以LNA的输入电容减小。由于存在两个阶段，由于在子阈值区域偏置的取消晶体管而导入到LNA输出中的噪声被减小。第一级涉及主晶体管，第二级涉及取消晶体管。通过增加第一级的增益并降低第二级的增益，保持整体LNA增益，同时降低子阈值偏置晶体管对LNA输出有贡献的噪声。

82. 发明授权

US07936217B2 High-linearity complementary amplifier 有权
标题翻译：高线性互补放大器
公开(公告)号：US07936217B2
公开(公告)日：2011-05-03
申请号：US11947570
申请日：2007-11-29
申请人： Junxiong Deng , Gurkanwal Singh Sahota , Solti Peng
发明人： Junxiong Deng , Gurkanwal Singh Sahota , Solti Peng
IPC分类号： H03F3/18
CPC分类号： H03F1/3205 , H03F1/0261 , H03F1/086 , H03F1/3211 , H03F1/56 , H03F3/19 , H03F3/3022 , H03F3/45179 , H03F2200/18 , H03F2200/294 , H03F2200/354 , H03F2200/451
摘要： A complementary amplifier includes an NMOS transistor coupled to a PMOS transistor in a stacked configuration. The NMOS transistor and the PMOS transistor receive and amplify an input signal. The NMOS and PMOS transistors operate as a linear complementary amplifier and provide an output signal. The NMOS and PMOS transistors may have separate bias voltages, which may be selected to overlap the low-to-high and high-to-low transitions of the transconductances of these transistors. The width and length dimensions of the NMOS and PMOS transistors may be selected to match the change in input capacitance and the change in transconductance of the NMOS transistor in moderate inversion region with the change in input capacitance and the change in transconductance of the PMOS transistor in moderate inversion region. The complementary amplifier may have an approximately constant total input capacitance and an approximately constant total transconductance over a range of voltages.
摘要翻译：互补放大器包括以堆叠配置耦合到PMOS晶体管的NMOS晶体管。 NMOS晶体管和PMOS晶体管接收和放大输入信号。 NMOS和PMOS晶体管作为线性互补放大器工作并提供输出信号。 NMOS和PMOS晶体管可以具有单独的偏置电压，其可以被选择为与这些晶体管的跨导的低到高和高到低的跃迁重叠。可以选择NMOS和PMOS晶体管的宽度和长度尺寸以匹配输入电容的变化和中等反转区中NMOS晶体管的跨导变化，随着输入电容的变化和PMOS晶体管的跨导变化中等反转区。互补放大器可以具有近似恒定的总输入电容和在一定范围的电压上的近似恒定的总跨导。

83. 发明申请

US20110096240A1 HIGH DYNAMIC RANGE LOW-POWER DIFFERENTIAL INPUT STAGE 失效
标题翻译：高动态范围低功耗差分输入级
公开(公告)号：US20110096240A1
公开(公告)日：2011-04-28
申请号：US11814561
申请日：2006-01-16
申请人： Oswald Josef Moonen
发明人： Oswald Josef Moonen
IPC分类号： H04N5/44 , H03F3/45
CPC分类号： H03F3/45 , H03D7/1408 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0043 , H03F1/3211 , H03F3/45098 , H03F2200/294 , H03F2200/372 , H03F2200/513 , H03F2203/45458 , H03F2203/45472 , H03F2203/45702
摘要： A low-power high dynamic range RF input stage (200) with a noiseless degeneration component, such as a capacitor (201), is provided. High dynamic range means a combination of low noise contribution by the stage (200) and a low level of intermodulation products occurring especially at high input levels. Low power means that the power consumption of a conventional input stage is about 5 times higher than the power consumption of the stage according to the invention, for the same noise, gain and distortion level. This new stage can be used in amplifiers, but also in the lower stage of double balanced mixers (300-400) commonly used in RF receivers, examples of which are applications, are provided.
摘要翻译：提供具有无噪声变性分量的低功率高动态范围RF输入级（200），例如电容器（201）。高动态范围意味着阶段（200）的低噪声贡献和特别是在高输入电平下产生的低水平的互调产物的组合。低功率意味着对于相同的噪声，增益和失真水平，常规输入级的功耗比根据本发明的级的功耗高约5倍。这个新阶段可用于放大器，也可用于RF接收机通常使用的双平衡混频器（300-400）的较低阶段，其中提供了其应用。

84. 发明授权

US07923710B2 Digital isolator with communication across an isolation barrier 失效
标题翻译：数字隔离器，隔离隔离通道
公开(公告)号：US07923710B2
公开(公告)日：2011-04-12
申请号：US11683985
申请日：2007-03-08
申请人： Philip John Crawley , Sajol Ghoshal , John R. Camagna
发明人： Philip John Crawley , Sajol Ghoshal , John R. Camagna
IPC分类号： H03F3/38
CPC分类号： H03F3/45183 , H01L2224/05554 , H01L2224/48137 , H01L2224/49175 , H01L2924/00014 , H01L2924/3011 , H03F1/3211 , H03F3/393 , H03F2200/261 , H03F2200/271 , H03F2203/45101 , H01L2224/45099 , H01L2924/00
摘要： A signal isolator comprises an isolation barrier, a transmitter, a differentiator, and a recovery circuit. The transmitter is coupled to a first side of the isolation barrier and is configured to receive and convert an information signal to a differential signal that encodes information in the information signal in a single transition edge. The differentiator is coupled to a second side that is isolated from the first side of the isolation harrier and differentiates the differential signal. The recovery circuit is coupled to the differentiator and operates to recover an output information signal based on the information in the single transition edge.
摘要翻译：信号隔离器包括隔离屏障，发射器，微分器和恢复电路。发射机耦合到隔离屏障的第一侧，并且被配置为接收并将信息信号转换成在单个过渡边缘中对信息信号中的信息进行编码的差分信号。微分器耦合到与隔离器的第一侧隔离并且差分差分信号的第二侧。恢复电路耦合到微分器并且操作以基于单个过渡边缘中的信息来恢复输出信息信号。

85. 发明授权

US07898333B2 Operational amplifier 有权
标题翻译：运算放大器
公开(公告)号：US07898333B2
公开(公告)日：2011-03-01
申请号：US12247974
申请日：2008-10-08
申请人： Zachary M. Griffith , Miguel E. Urteaga , Mark J. W. Rodwell
发明人： Zachary M. Griffith , Miguel E. Urteaga , Mark J. W. Rodwell
IPC分类号： H03F3/45
CPC分类号： H03F3/45475 , H03F1/083 , H03F1/3211 , H03F3/19 , H03F3/45098 , H03F2200/405 , H03F2200/408 , H03F2200/423 , H03F2200/451 , H03F2200/543 , H03F2203/45051 , H03F2203/45116 , H03F2203/45118 , H03F2203/45138 , H03F2203/45151 , H03F2203/45336 , H03F2203/45512 , H03F2203/45528 , H03F2203/45548 , H03F2203/45564 , H03F2203/45594 , H03F2203/45596 , H03F2203/45612 , H03F2203/45701 , Y10T29/41
摘要： The present invention relates generally to an operational amplifier. In one embodiment, the present invention is an operational amplifier including a transimpedance input stage, the transimpedance input stage including a first stage connected to a first resistor and a second resistor, and an output stage connected to the transimpedance input stage.
摘要翻译：本发明一般涉及运算放大器。在一个实施例中，本发明是包括跨阻输入级的运算放大器，跨阻输入级包括连接到第一电阻器和第二电阻器的第一级，以及连接到跨阻输入级的输出级。

86. 发明申请

US20100329487A1 PREAMPLIFIER CIRCUIT FOR A MICROELECTROMECHANICAL CAPACITIVE ACOUSTIC TRANSDUCER 有权
标题翻译：微电子电容式电声传感器的前置放大器电路
公开(公告)号：US20100329487A1
公开(公告)日：2010-12-30
申请号：US12826210
申请日：2010-06-29
申请人： Filippo David , Igino Padovani
发明人： Filippo David , Igino Padovani
IPC分类号： H04R11/04
CPC分类号： H03F3/45179 , G05F3/30 , H03F1/3211 , H03F3/185 , H03F3/187 , H03F3/45 , H03F3/45183 , H03F3/45192 , H03F3/45475 , H03F3/45632 , H03F2200/03 , H03F2200/18 , H03F2200/213 , H03F2200/372 , H03F2200/447 , H03F2200/555 , H03F2203/45136 , H03F2203/45244 , H03F2203/45392 , H03F2203/45456 , H03F2203/45628 , H03F2203/45631 , H04R3/007 , H04R19/01 , H04R19/04 , H04R2201/003
摘要： Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.
摘要翻译：这里描述的是一种用于电容式声学换能器的前置放大器电路，该电容式声学换能器具有从静止电容开始的MEMS检测结构，其产生作为要检测的声学信号的函数的电容变化; 前置放大器电路具有产生与电容变化相关的差分输出信号的放大级。特别地，放大级是前置放大器电路的输入级，并且具有完全差分放大器，其具有直接连接到MEMS检测结构的第一差分输入（INP）和连接到参考电容元件的第二差分输入（INN）其具有等于MEMS检测结构的静止电容并且相对于要检测的声信号固定的电容值; 全差分放大器放大电容变化并产生差分输出信号。

87. 发明授权

US07847635B2 Transconductance amplifier 有权
标题翻译：跨导放大器
公开(公告)号：US07847635B2
公开(公告)日：2010-12-07
申请号：US12439093
申请日：2007-08-27
申请人： Yusuke Aiba
发明人： Yusuke Aiba
IPC分类号： H03F3/45
CPC分类号： H03G1/0029 , H03F1/3211 , H03F3/45179 , H03F3/45183 , H03F3/45188 , H03F2203/45052 , H03F2203/45066 , H03F2203/45101 , H03F2203/45292 , H03F2203/45356 , H03F2203/45394 , H03F2203/45481 , H03F2203/45586 , H03G1/0023 , H03G1/04
摘要： Provided is a transconductance amplifier capable of suppressing variation in the range of a linear relationship between an input voltage and an output current depending on the magnitude of a tuning voltage Vctrl, thereby adjusting transconductance over a wider range of operating input voltages. The transconductance amplifier is configured by a differential pair formed of MOS transistors (111, 112) having a common source, MOS transistors (113, 114), amplifiers (106, 107), a voltage generator circuit (100), and a differential-pair input voltage generator circuit (120). An input differential common voltage Vcm of all differential signals inputted to the differential pair is adjusted so that a difference between Vcm and Vctrl is equal to a constant, in accordance with a change in the tuning voltage Vctrl that controls the transconductance. This enables keeping constant the range in which the transconductance amplifier can achieve good linearity.
摘要翻译：提供了能够根据调谐电压Vctr1的大小来抑制输入电压和输出电流之间的线性关系的范围的变化的跨导放大器，由此在更宽的工作输入电压范围内调节跨导。跨导放大器由具有公共源的MOS晶体管（111,112），MOS晶体管（113,114），放大器（106,107），电压发生器电路（100）和差分放大器构成的差分对构成，对输入电压发生器电路（120）。根据控制跨导的调谐电压Vctrl的变化，调整输入到差分对的所有差分信号的输入差分公共电压Vcm，使得Vcm和Vctr1之间的差等于常数。这使得跨导放大器可以实现良好线性度的范围保持恒定。

88. 发明授权

US07821581B2 Fully integrated tuner architecture 有权
标题翻译：完全集成的调谐器架构
公开(公告)号：US07821581B2
公开(公告)日：2010-10-26
申请号：US12219925
申请日：2008-07-30
申请人： Pieter Vorenkamp , Klaas Bult , Frank Carr , Christopher M. Ward , Ralph Duncan , Tom W. Kwan , James Y. C. Chang , Haideh Khorramabadi
发明人： Pieter Vorenkamp , Klaas Bult , Frank Carr , Christopher M. Ward , Ralph Duncan , Tom W. Kwan , James Y. C. Chang , Haideh Khorramabadi
IPC分类号： H04N5/455
CPC分类号： H03D3/18 , H01F17/0006 , H01F17/0013 , H01F27/34 , H01F27/40 , H01F27/42 , H01F2017/0053 , H01F2021/125 , H01L23/5227 , H01L27/0248 , H01L27/0251 , H01L27/08 , H01L2924/0002 , H01L2924/3011 , H03B5/04 , H03B5/364 , H03D7/161 , H03D7/18 , H03F1/26 , H03F1/3211 , H03F3/195 , H03F3/45183 , H03F3/45188 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/294 , H03F2200/372 , H03F2200/447 , H03F2200/63 , H03F2203/45264 , H03F2203/45286 , H03G1/0023 , H03G1/0029 , H03G3/3052 , H03H7/25 , H03H11/04 , H03H11/1291 , H03H11/53 , H03H11/54 , H03H19/004 , H03J1/0075 , H03J3/04 , H03J3/08 , H03J3/185 , H03J2200/10 , H03L7/10 , H03L7/183 , H03L7/23 , H03L2207/06 , H01L2924/00
摘要： An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator. The VCOs in the PLLs are centered using a control circuit to center the tuning capacitance range. A differential crystal oscillator is advantageously used as a frequency reference. Differential signal transmission is advantageously used throughout the receiver.
摘要翻译：描述了基本上在单个CMOS集成电路上实现的具有信道选择和图像抑制的集成接收机。接收机前端提供可编程衰减和可编程增益低噪声放大器。频率转换电路有利地使用集成到衬底上的LC滤波器与图像抑制混合器结合，以提供足够的图像频率抑制。过滤器调谐和电感Q补偿温度在芯片上执行。滤波器采用多轨螺旋电感。使用本地振荡器调整滤波器以调整替代滤波器，以及滤波器组件值期间的频率缩放与被调谐的滤波器的频率缩放。结合滤波，频率规划提供了额外的镜像抑制。片上本地振荡器信号产生方法的有利选择是通过PLL带外本地振荡和通过频带本地振荡器的直接合成。 PLL中的VCO使用控制电路居中，使调谐电容范围居中。差分晶体振荡器有利地用作频率参考。差分信号传输有利地用于整个接收机。

89. 发明授权

US07804361B2 Low noise amplifier 失效
标题翻译：低噪声放大器
公开(公告)号：US07804361B2
公开(公告)日：2010-09-28
申请号：US12195615
申请日：2008-08-21
申请人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Je-hyung Yoon
发明人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Je-hyung Yoon
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F1/3211 , H03F3/193 , H03F2200/294 , H03F2203/45306 , H03F2203/45468 , H03F2203/45638
摘要： A low noise amplifier is provided. The low noise amplifier includes: a low noise amplifying unit amplifying an input signal; a harmonic and noise generating unit disposed in an input terminal of the low noise amplifying unit, for generating a compensating signal for compensating for an intermodulation distortion signal and a thermal noise signal of the input signal to the low noise amplifying unit; and a load unit outputting the amplified input signal generated by the low noise amplifying unit.
摘要翻译：提供了一个低噪声放大器。低噪声放大器包括：放大输入信号的低噪声放大单元; 谐波噪声产生单元，设置在所述低噪声放大单元的输入端子中，用于产生用于补偿所述输入信号到所述低噪声放大单元的互调失真信号和热噪声信号的补偿信号; 以及输出由低噪声放大单元生成的放大的输入信号的负载单元。

90. 发明授权

US07773969B2 Current converter, frequency mixer, radiofrequency transmission system and method for frequency mixing 有权
标题翻译：电流转换器，混频器，射频传输系统及混频方法
公开(公告)号：US07773969B2
公开(公告)日：2010-08-10
申请号：US11857826
申请日：2007-09-19
申请人： Martin Simon
发明人： Martin Simon
IPC分类号： H04B1/26
CPC分类号： H03F3/45475 , H03F1/3211 , H03F1/342 , H03F3/245 , H03F3/45179 , H03F2200/451 , H03F2203/45522 , H03F2203/45591 , H03F2203/45652
摘要： A current converter has a first amplification device, which outputs a differential current depending on a differential control signal and derives a differential feedback signal from the differential current. The current converter also has a second amplification device, which amplifies a differential input signal at its input depending on the differential feedback signal to form the differential control signal. The current converter may be used in a frequency mixer together with a mixer cell which produces a differential output signal by multiplying the differential current and an oscillator signal.
摘要翻译：电流转换器具有第一放大装置，其根据差分控制信号输出差分电流，并从差分电流导出差分反馈信号。电流转换器还具有第二放大装置，其根据差分反馈信号放大其输入端的差分输入信号以形成差分控制信号。电流转换器可以与混频器单元一起使用，该混频器单元通过将差分电流和振荡器信号相乘来产生差分输出信号。

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