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51. 发明授权

US07729419B1 Reconditioning equalizer filter using convolution 有权
标题翻译：使用卷积修复均衡器滤波器
公开(公告)号：US07729419B1
公开(公告)日：2010-06-01
申请号：US11603725
申请日：2006-11-24
申请人： Kiomars Anvari
发明人： Kiomars Anvari
IPC分类号： H03H7/30 , H04L27/08 , H03F3/66 , H03F1/26 , H03F1/00 , H04B1/04
CPC分类号： H04L25/03019 , H04L25/03057
摘要： A technique for a reconditioning equalizer filter using convolution is described. The input to a transmitter chain is modified by a reconditioning equalizer filter using convolution prior to being applied to the transmitter. The reconditioning equalizer filter modifies and smoothen the amplitude of the main baseband signal. The modified and smoothen main baseband signal has its peaks reduced which results to lower Crest Factor. The input to the reconditioning equalizer filter using convolution could be a baseband, an intermediate frequency (IF) or radio frequency (RF) signal. When the signal is an IF or RF signal it needs to be down converted to baseband before applied to reconditioning equalizer filter using convolution.
摘要翻译：描述了使用卷积修复均衡器滤波器的技术。通过在施加到发射机之前使用卷积的修复均衡器滤波器来修改发射机链的输入。修复均衡器滤波器对主基带信号的幅度进行修正和平滑处理。修改和平滑的主基带信号的峰值降低，导致波峰因数降低。使用卷积的修复均衡器滤波器的输入可以是基带，中频（IF）或射频（RF）信号。当信号是IF或RF信号时，需要将其转换为基带，然后才能使用卷积来重新调整均衡滤波器。

52. 发明申请

US20100127772A1 FEEDBACK AMPLIFIER AND AUDIO SYSTEM THEREROF 有权
标题翻译：反馈放大器和音频系统
公开(公告)号：US20100127772A1
公开(公告)日：2010-05-27
申请号：US12276253
申请日：2008-11-21
申请人： VINCENT MUI , Lance Wong , Aditya Raina
发明人： VINCENT MUI , Lance Wong , Aditya Raina
IPC分类号： H03G3/20 , H03F1/00
CPC分类号： H03G1/0035 , H03F3/187 , H03F3/45475 , H03F2200/03 , H03F2200/411 , H03F2203/45522 , H03F2203/45591 , H03F2203/45611 , H03F2203/45688 , H03F2203/45721 , H03G7/002
摘要： A feedback amplifier includes an operational amplifier having an input end and an output end. A first resistor is coupled with the input end of the operational amplifier. A second resistor has a first end coupled with the input end of the operational amplifier and a second end coupled with the output end of the amplifier. A voltage divider has a first end being operably coupled with the output end of the operational amplifier and a second end being analog grounded. In an embodiment, the feedback amplifier further includes a first switch coupled to the first end of the voltage divider and the output end of the operational amplifier, and a second switch coupled to an internal node of the voltage divider. In an embodiment, the feedback amplifier is configured to provide attenuation when the first switch is open and second switch is closed.
摘要翻译：反馈放大器包括具有输入端和输出端的运算放大器。第一电阻器与运算放大器的输入端耦合。第二电阻器具有与运算放大器的输入端耦合的第一端和与放大器的输出端耦合的第二端。分压器具有可操作地与运算放大器的输出端耦合的第一端，以及模拟地接地的第二端。在一个实施例中，反馈放大器还包括耦合到分压器的第一端和运算放大器的输出端的第一开关，以及耦合到分压器的内部节点的第二开关。在一个实施例中，反馈放大器被配置为当第一开关断开并且第二开关闭合时提供衰减。

53. 发明申请

US20090275295A1 METHOD AND SYSTEM FOR FLIP-CHIP RF FRONT END WITH A SWITCHABLE POWER AMPLIFIER 审中-公开
标题翻译：具有可切换功率放大器的片状RF前端的方法和系统
公开(公告)号：US20090275295A1
公开(公告)日：2009-11-05
申请号：US12112252
申请日：2008-04-30
申请人： Razieh Roufoogaran
发明人： Razieh Roufoogaran
IPC分类号： H03F1/00
CPC分类号： H04B1/04 , H03F1/02 , H03F3/24 , H04B2001/0416 , H04B2001/045
摘要： Methods and systems for a flip-chip RF front end with switchable power amplifier. Aspects of one method may include controlling at least one MEMS switch to allow an on-chip PA and/or an off-chip PA to amplify RF signals for transmission. The MEMS switch may be part of a device package that may be mounted above the flip-chip bonded integrated circuit (IC). Accordingly, various embodiments of the invention may enable controlling of switches to amplify the RF signals via the on-chip RF PA, and the off-chip PA may be bypassed if there is an off-chip RF PA. Various embodiments of the invention may enable controlling the switches to amplify the RF signals via an off-chip RF PA and bypassing an on-chip RF PA. Various embodiments of the invention may also enable controlling the switches to amplify the RF signals via an off-chip RF PA and an on-chip RF PA.
摘要翻译：具有可切换功率放大器的倒装RF前端的方法和系统。一种方法的方面可以包括控制至少一个MEMS开关以允许片上PA和/或片外PA放大RF信号进行传输。 MEMS开关可以是可以安装在倒装芯片接合集成电路（IC）上方的器件封装的一部分。因此，本发明的各种实施例可以使得能够控制开关以经由片上RF PA放大RF信号，并且如果存在片外RF PA，则片外PA可以被旁路。本发明的各种实施例可以使控制开关能够经由片外RF PA放大RF信号并绕过片上RF PA。本发明的各种实施例还可以使控制开关能够经由片外RF PA和片上RF PA放大RF信号。

54. 发明申请

US20090256633A1 Bypass Device for Microwave Amplifier Unit 有权
标题翻译：微波放大器单元旁路装置
公开(公告)号：US20090256633A1
公开(公告)日：2009-10-15
申请号：US12084445
申请日：2006-10-30
申请人： Amir Emdadi
发明人： Amir Emdadi
IPC分类号： H03F1/00
CPC分类号： H03G1/0088 , H03F1/42 , H03F1/52 , H03F3/602 , H03F3/72 , H03F2200/192 , H03F2200/198 , H03F2200/204 , H03F2200/294 , H03F2200/451 , H03F2200/543 , H03F2203/7239
摘要： The invention relates to a bypass device for a microwave amplifier unit, the microwave amplifier unit (1) comprising at least one low noise amplifier (LNA) and amplifying communication signals in at least one microwave frequency band above 500 MHz, the bypass device extending in parallel to said microwave amplifier unit (1), both extending between an input port (3) and an output port (4), in which amplifier unit (1) switching elements (9,10,16,21) for activating said bypass segment (2) in a bypass mode of the device in case said amplifier unit (1) becomes inoperable and for effectively blocking the bypass segment (2) in an active mode of the device are arranged, said bypass segment comprising a series of bypass segment sections (14,19,17) having at least one junction point connected to an associated one of said switching elements (16,21), where each of said bypass segment sections (14:19:17) comprises at least two coupled transmission lines (31,32;31,33,32;31,34,32:51,52;51,53,52:41,42;41,43,42;41,44,42), where the coupled transmission lines form sets (31,32,51,52,42,41;31,33,32,51,52,42,41;31,34,32,51,53,52,42,44,41) of transmission lines, where only one of the sets is in use at a time, and where each set of coupled transmission lines optimizes the bypass segment (2) to different operating frequencies, whereby the bypass segment is able to operate properly in the bypass mode at more than one frequency.
摘要翻译：本发明涉及一种用于微波放大器单元的旁路装置，所述微波放大器单元（1）包括至少一个低噪声放大器（LNA），并且在500MHz以上的至少一个微波频带内放大通信信号，所述旁路装置延伸在平行于所述微波放大器单元（1），两者都在输入端口（3）和输出端口（4）之间延伸，其中放大器单元（1）用于激活旁路段（9,10,16,21）（2）在装置的旁路模式中，在所述放大器单元（1）变得不可操作并且为了有效地阻挡在所述装置的主动模式中的所述旁路段（2）的情况下，所述旁路段包括一系列旁路段段（14,19,17），其具有连接到所述开关元件（16,21）中的相关联的一个的至少一个连接点，其中每个所述旁路段段（14:19:17）包括至少两个耦合的传输线 31,32; 31,33,32; 31,34,32：51,52; 51,53,52：41,42 ; 41,43,42; 41,44,42），其中所述耦合传输线形成集合（31,32,51,52,42,41; 31,33,32,51,52,42,41; 31,33,42; 34,32,51,53,52,42,44,41），其中一组中仅一个使用一次，并且其中每组耦合传输线优化旁路段（2）到不同的工作频率，从而旁路段能够以多于一个频率在旁路模式下正常工作。

55. 发明授权

US07571415B2 Layout of power device 有权
标题翻译：电源设备布局
公开(公告)号：US07571415B2
公开(公告)日：2009-08-04
申请号：US11626013
申请日：2007-01-23
申请人： Houshang Aghahassan , Albert Kuo Huei Yen , Chung-Che Reed , Tsung-Chien Wu
发明人： Houshang Aghahassan , Albert Kuo Huei Yen , Chung-Che Reed , Tsung-Chien Wu
IPC分类号： G06F17/50 , H01L27/088 , H03F1/00
CPC分类号： H03F3/211 , H03F3/45475 , H03F3/604
摘要： A layout of a power device is provided. The layout includes a substrate, a unit array, a plurality of first, second, third and fourth signal paths, and a first, second, third and fourth port. The unit array with a plurality of rows is disposed on the substrate. Each row of the unit array includes a plurality of units. The first and second signal paths on the substrate are disposed on a first side and a second side of corresponding odd-numbered rows of the unit array. The third and the fourth signal paths on the substrate are disposed above a corresponding row of the unit array. The first to fourth ports on the substrate are electrically connected to the first to fourth signal paths respectively.
摘要翻译：提供电源设备的布局。布局包括基板，单元阵列，多个第一，第二，第三和第四信号路径以及第一，第二，第三和第四端口。具有多行的单元阵列设置在基板上。单元阵列的每一行包括多个单元。衬底上的第一和第二信号路径被布置在单元阵列的相应奇数行的第一侧和第二侧上。衬底上的第三和第四信号路径设置在单元阵列的相应行上方。基板上的第一至第四端口分别电连接到第一至第四信号路径。

56. 发明申请

US20090160554A1 AMPLIFIER ARRANGEMENT 有权
标题翻译：放大器布置
公开(公告)号：US20090160554A1
公开(公告)日：2009-06-25
申请号：US12338702
申请日：2008-12-18
申请人： Nitin Garg
发明人： Nitin Garg
IPC分类号： H03F1/00
CPC分类号： H03G3/3042 , H03G3/001
摘要： A gain-controlled RF amplifier system has an input node and an output node. The system has a plurality of amplifier devices, selectively connectable between the input node and the output node. The amplifier devices are placed in circuit according to a measured gain derived by comparing a magnitude of a signal input to the input node against a magnitude of a signal output from the output node, and a desired value of gain.
摘要翻译：增益控制的RF放大器系统具有输入节点和输出节点。该系统具有可以在输入节点和输出节点之间有选择地连接的多个放大器装置。放大器装置根据通过比较输入到输入节点的信号的幅度与从输出节点输出的信号的大小和增益的期望值而导出的测量增益放置在电路中。

57. 发明申请

US20090091383A1 GAIN AMPLIFIER HAVING SWITCHED-CAPACITOR STRUCTURE FOR MINIMIZING SETTLING TIME 失效
标题翻译：具有开关电容结构的增益放大器，用于最小化设定时间
公开(公告)号：US20090091383A1
公开(公告)日：2009-04-09
申请号：US12195202
申请日：2008-08-20
申请人： Young Deuk Jeon , Young Kyun Cho , Kwi Dong Kim , Jong Kee Kwon , Jong Dae Kim
发明人： Young Deuk Jeon , Young Kyun Cho , Kwi Dong Kim , Jong Kee Kwon , Jong Dae Kim
IPC分类号： H03F1/00
CPC分类号： H03F3/005
摘要： Provided is a gain amplifier having a switched-capacitor structure capable of minimizing settling time, in which an input capacitor is connected to an input terminal during a first clock sampling an input signal, and thus an output terminal of the amplifier is reset in advance to an estimated output voltage value rather than 0 by the input capacitor. Accordingly, the slight move of the output terminal of the amplifier is sufficient to settle to a desired value in an amplification mode, so that slewing time can be reduced, and as a result, overall settling time and power consumption can be minimized.
摘要翻译：提供一种增益放大器，其具有能够最小化建立时间的开关电容器结构，其中输入电容器在第一时钟对输入信号进行采样期间连接到输入端子，因此放大器的输出端子预先复位到输入电容器的估计输出电压值而不是0。因此，放大器的输出端子的轻微移动足以在放大模式下稳定到期望值，从而可以减少回转时间，结果可以使整体建立时间和功耗最小化。

58. 发明授权

US07459974B2 System and method for distortion cancellation in amplifiers 有权
标题翻译：放大器失真消除的系统和方法
公开(公告)号：US07459974B2
公开(公告)日：2008-12-02
申请号：US11945800
申请日：2007-11-27
申请人： Douglas M. Johnson , Rajah V. Vysyaraju , Steven Seiz
发明人： Douglas M. Johnson , Rajah V. Vysyaraju , Steven Seiz
IPC分类号： H03F1/00 , H03F3/68
CPC分类号： H03F1/3211 , H03F1/3223 , H03F3/45183 , H03F3/45188 , H03F2200/453 , H03F2203/45024 , H03F2203/45318 , H03F2203/45352 , H03F2203/45366 , H03F2203/45392
摘要： A distortion cancellation amplifier is described having a main amplifier and an error amplifier. The main amplifier, in response to an input signal, generates an output signal having an amplified signal component and a distortion signal component. The error amplifier is sized and biased to generate, in response to the same input signal, a distortion signal component that has substantially the same magnitude as the distortion signal component of the main amplifier. The distortion signal component from the error amplifier is subtracted from the output signal of the main amplifier.
摘要翻译：描述了具有主放大器和误差放大器的失真消除放大器。主放大器响应于输入信号，产生具有放大信号分量和失真信号分量的输出信号。误差放大器的尺寸和偏置被调整以响应于相同的输入信号产生具有与主放大器的失真信号分量基本上相同幅度的失真信号分量。来自误差放大器的失真信号分量从主放大器的输出信号中减去。

59. 发明授权

US07382187B2 Semiconductor integrated circuit and amplifier for suppressing pop sound while minimizing voltage transition settling time 有权
标题翻译：用于抑制流行声音的半导体集成电路和放大器，同时最小化电压转换稳定时间
公开(公告)号：US07382187B2
公开(公告)日：2008-06-03
申请号：US10763343
申请日：2004-01-23
申请人： Katsuhiko Aisu
发明人： Katsuhiko Aisu
IPC分类号： H03F1/00
CPC分类号： H03F1/305
摘要： A semiconductor integrated circuit includes a capacitor element which defines a prescribed decay time constant with one or more resistors, an MOS transistor connected to the capacitor element via its gate, and a constant current generating element which generates a constant current. The capacitor element is charged with the constant current so as to create a linearly changing voltage. The linearly changing voltage is applied to the gate so that the MOS transistor can accordingly output a smoothly changing current.
摘要翻译：半导体集成电路包括电容器元件，其通过一个或多个电阻器限定规定的衰减时间常数，经由其栅极连接到电容器元件的MOS晶体管和产生恒定电流的恒定电流产生元件。电容器元件用恒定电流充电，以产生线性变化的电压。线性变化的电压被施加到栅极，使得MOS晶体管可以相应地输出平滑变化的电流。

60. 发明申请

US20080048732A1 Abnormality detection circuit 审中-公开
标题翻译：异常检测电路
公开(公告)号：US20080048732A1
公开(公告)日：2008-02-28
申请号：US11880506
申请日：2007-07-23
申请人： Takashi Oki
发明人： Takashi Oki
IPC分类号： H02H1/00 , H03F1/00 , H03F3/217 , H03K5/19
CPC分类号： G01R31/40 , G01R19/16547 , H03F1/52 , H03F3/217
摘要： An abnormality detection circuit monitors a power supply voltage and, when the power supply voltage drops, outputs an abnormality detection signal of a predetermined level. The source of a detection transistor as a P-channel MOSFET is connected to a power supply line to which a power supply voltage to be monitored is applied. A detection resistor as an impedance element is provided between the drain of the detection transistor and a ground terminal. A capacitor is provided between the gate of the detection transistor and the ground terminal. A charging path is provided between the gate of the detection transistor and the power supply line. The abnormality detection circuit outputs a drain voltage of the detection transistor as an abnormality detection signal.
摘要翻译：异常检测电路监视电源电压，当电源电压下降时，输出预定电平的异常检测信号。作为P沟道MOSFET的检测晶体管的源极连接到施加要监视的电源电压的电源线。作为阻抗元件的检测电阻器设置在检测晶体管的漏极和接地端子之间。在检测晶体管的栅极和接地端子之间提供电容器。在检测晶体管的栅极和电源线之间设置充电路径。异常检测电路将检测晶体管的漏极电压作为异常检测信号输出。

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