专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09048850B2 Frequency synthesizer apparatus and methods for improving capacitor code search accuracy using LSB modulation 有权
标题翻译：使用LSB调制改善电容码搜索精度的频率合成器装置和方法
公开(公告)号：US09048850B2
公开(公告)日：2015-06-02
申请号：US13797356
申请日：2013-03-12
申请人： QUALCOMM Incorporated
发明人： Abbas Komijani , Emmanouil Terrovitis , Justin A. Hwang
IPC分类号： H03L7/10 , H03L7/087 , H03J5/24 , H03L7/113 , H03L7/181
CPC分类号： H03L7/103 , H03J5/244 , H03J2200/10 , H03L7/087 , H03L7/10 , H03L7/113 , H03L7/181 , H03L2207/06
摘要： A frequency synthesizer is disclosed that includes an oscillator having an output to deliver a signal of a controllable frequency. The oscillator includes a capacitor bank responsive to an N-bit control signal to exhibit a capacitance. The oscillator output frequency is based on the capacitance. Control logic generates the N-bit control signal and determines each bit of the N-bit control signal through a binary search step and a modulation of a least-significant-bit (LSB) of the N-bit control signal. The LSB modulation, combined with the binary search for each bit, results in a higher accuracy frequency estimation.
摘要翻译：公开了一种频率合成器，其包括具有输出以输送可控频率的信号的振荡器。振荡器包括响应于N位控制信号以显示电容的电容器组。振荡器输出频率基于电容。控制逻辑产生N位控制信号，并且通过二进制搜索步骤和N位控制信号的最低有效位（LSB）的调制来确定N位控制信号的每个位。 LSB调制与每个比特的二进制搜索相结合，导致更高的频率估计精度。

2. 发明授权

US08884707B2 Two-delay voltage-controlled-oscillator with wide tuning range 有权
标题翻译：具有宽调谐范围的双延迟压控振荡器
公开(公告)号：US08884707B2
公开(公告)日：2014-11-11
申请号：US13651340
申请日：2012-10-12
申请人： QUALCOMM Incorporated
发明人： Emmanouil Terrovitis , Abbas Komijani
IPC分类号： H03K3/03
CPC分类号： H03K3/03 , H03K2005/00071
摘要： An oscillator is disclosed that can generate an oscillation signal using a latch and two delay elements. For some embodiments, the oscillator includes an SR latch, a first delay element, and a second delay element. The SR latch has a first input, a second input, a first output, and a second output. The first delay element is coupled between the first output and the first input of the SR latch. The second delay element is coupled between the second output and the second input of the SR latch. For some embodiments, the first and second delay elements include a programmable pull-up circuit that allows the charging current to be adjusted in discrete amounts, and include a programmable capacitor circuit that allows the capacitance value to be adjusted in discrete amounts.
摘要翻译：公开了一种使用锁存器和两个延迟元件产生振荡信号的振荡器。对于一些实施例，振荡器包括SR锁存器，第一延迟元件和第二延迟元件。 SR锁存器具有第一输入，第二输入，第一输出和第二输出。第一延迟元件耦合在第一输出和SR锁存器的第一输入端之间。第二延迟元件耦合在SR锁存器的第二输出端和第二输入端之间。对于一些实施例，第一和第二延迟元件包括允许以离散量调节充电电流的可编程上拉电路，并且包括允许以离散量调整电容值的可编程电容器电路。

3. 发明申请

US20140002205A1 FREQUENCY SYNTHESIZER APPARATUS AND METHODS FOR IMPROVING CAPACITOR CODE SEARCH ACCURACY USING LSB MODULATION 有权
标题翻译：频率合成器装置和使用LSB调制改进电容器代码搜索精度的方法
公开(公告)号：US20140002205A1
公开(公告)日：2014-01-02
申请号：US13797356
申请日：2013-03-12
申请人： QUALCOMM INCORPORATED
发明人： Abbas Komijani , Emmanouil Terrovitis , Justin A. Hwang
IPC分类号： H03L7/00
CPC分类号： H03L7/103 , H03J5/244 , H03J2200/10 , H03L7/087 , H03L7/10 , H03L7/113 , H03L7/181 , H03L2207/06
摘要： A frequency synthesizer is disclosed that includes an oscillator having an output to deliver a signal of a controllable frequency. The oscillator includes a capacitor bank responsive to an N-bit control signal to exhibit a capacitance. The oscillator output frequency is based on the capacitance. Control logic generates the N-bit control signal and determines each bit of the N-bit control signal through a binary search step and a modulation of a least-significant-bit (LSB) of the N-bit control signal. The LSB modulation, combined with the binary search for each bit, results in a higher accuracy frequency estimation.
摘要翻译：公开了一种频率合成器，其包括具有输出以输送可控频率的信号的振荡器。振荡器包括响应于N位控制信号以显示电容的电容器组。振荡器输出频率基于电容。控制逻辑产生N位控制信号，并且通过二进制搜索步骤和N位控制信号的最低有效位（LSB）的调制来确定N位控制信号的每个位。 LSB调制与每个比特的二进制搜索相结合，导致更高的频率估计精度。

4. 发明授权

US09300249B2 Differential crystal oscillator circuit 有权
标题翻译：差分晶振电路
公开(公告)号：US09300249B2
公开(公告)日：2016-03-29
申请号：US14338241
申请日：2014-07-22
申请人： QUALCOMM Incorporated
发明人： Yashar Rajavi , Amirpouya Kavousian , Alireza Khalili , Mohammad Bagher Vahid Far , Abbas Komijani
IPC分类号： H03B5/32 , H03B5/36
CPC分类号： H03B5/364 , H03B5/06 , H03B5/36 , H03B2200/004 , H03B2200/0094
摘要： A differential crystal oscillator circuit, including: first and second output terminals; a cross-coupled oscillation unit including first and second transistors cross-coupled to the first and second output terminals; first and second metal-oxide semiconductor field-effect transistor (MOSFET) diodes, each MOSFET diode including a resistor connected between gate and drain terminals, wherein the first MOSFET diode couples to the first transistor to provide low-impedance load at low frequencies and high-impedance load at higher frequencies to the first transistor, wherein the second MOSFET diode couples to the second transistor to provide low-impedance load at low frequencies and high-impedance load at higher frequencies to the second transistor; and a reference resonator coupled between the first and second output terminals to establish an oscillation frequency.
摘要翻译：一种差分晶体振荡器电路，包括：第一和第二输出端子; 交叉耦合振荡单元，包括交叉耦合到第一和第二输出端的第一和第二晶体管; 第一和第二金属氧化物半导体场效应晶体管（MOSFET）二极管，每个MOSFET二极管包括连接在栅极和漏极端子之间的电阻器，其中第一MOSFET二极管耦合到第一晶体管以在低频和高电平下提供低阻抗负载在第一晶体管的较高频率处的阻抗负载，其中所述第二MOSFET二极管耦合到所述第二晶体管，以在低频处提供低阻抗负载，并以较高频率向所述第二晶体管提供高阻抗负载; 以及耦合在第一和第二输出端子之间以建立振荡频率的参考谐振器。

5. 发明申请

US20150207531A1 FILTERING BLOCKER COMPONENTS OF A SIGNAL 有权
标题翻译：过滤屏障组件的信号
公开(公告)号：US20150207531A1
公开(公告)日：2015-07-23
申请号：US14158225
申请日：2014-01-17
申请人： QUALCOMM Incorporated
发明人： Mohammad Bagher Vahid Far , Abbas Komijani , Amirpouya Kavousian , Mazhareddin Taghivand , Alireza Khalili
IPC分类号： H04B1/12
CPC分类号： H04B1/12 , H03F1/223 , H03F1/3223 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/68 , H03F2200/171 , H03F2200/222 , H03F2200/294 , H03H11/00 , H03H11/04
摘要： An apparatus includes a main amplifier configured to receive an input signal. The main amplifier is also configured to generate an output signal. The apparatus also includes an auxiliary path configured to phase-shift the input signal to generate a cancellation signal to reduce or cancel a blocker component of the output signal.
摘要翻译：一种装置包括：主放大器，被配置为接收输入信号。主放大器还被配置为产生输出信号。该装置还包括辅助路径，其被配置为对输入信号进行相移以产生消除信号以减少或消除输出信号的阻塞分量。

6. 发明授权

US09548767B2 Multi-band amplifier 有权
标题翻译：多频段放大器
公开(公告)号：US09548767B2
公开(公告)日：2017-01-17
申请号：US14532309
申请日：2014-11-04
申请人： QUALCOMM Incorporated
发明人： Abbas Komijani , Mohammad Bagher Vahid Far , Amirpouya Kavousian , Alireza Khalili , Yashar Rajavi , Lalitkumar Nathawad , Mohammad Mahdi Ghahramani
IPC分类号： H04L27/06 , H03F3/191 , H04B1/00 , H04B1/16 , H04B5/00
CPC分类号： H04B1/0064 , H04B1/16 , H04B5/0031 , H04B5/0087 , H04B5/0093
摘要： A multi-band amplifier may operate in a first frequency band and a second frequency band. The multi-band amplifier may include a first amplifier, a second amplifier, and a coupler. The coupler may couple a signal, such as a communication signal, to a selected amplifier. In some embodiments, the coupler may include one or more inductive elements to couple the signal to the first or the second amplifier. In some embodiments, the inductive elements may include a balun.
摘要翻译：多频带放大器可以在第一频带和第二频带中操作。多频带放大器可以包括第一放大器，第二放大器和耦合器。耦合器可以将诸如通信信号的信号耦合到所选择的放大器。在一些实施例中，耦合器可以包括一个或多个感应元件以将信号耦合到第一或第二放大器。在一些实施例中，感应元件可包括平衡 - 不平衡转换器。

7. 发明授权

US09547324B2 Power-efficient, low-noise, and process/voltage/temperature (PVT)—insensitive regulator for a voltage-controlled oscillator (VCO) 有权
标题翻译：用于压控振荡器（VCO）的功率高效，低噪声，过程/电压/温度（PVT） - 敏感稳压器
公开(公告)号：US09547324B2
公开(公告)日：2017-01-17
申请号：US14244321
申请日：2014-04-03
申请人： QUALCOMM Incorporated
发明人： Mohammad Bagher Vahid Far , Abbas Komijani , Chan Hong Park
IPC分类号： G05F3/26 , G05F3/02
CPC分类号： G05F3/02 , G05F3/262
摘要： Certain aspects of the present disclosure provide voltage regulating circuits which are power efficient, low noise, and substantially insensitive to changes in process technology, power supply voltage, and temperature. Such circuits may be used to provide the regulated voltage for a voltage-controlled oscillator (VCO), for example, as found in a radio frequency front end (RFFE). One example voltage regulating circuit generally includes a current source configured to supply or sink a reference current and a current mirror having a bias branch and a main branch, wherein the bias branch is connected with the current source, wherein the main branch includes a source follower to provide the regulated voltage, and wherein the reference current is available at a node for the regulated voltage.
摘要翻译：本公开的某些方面提供了功率有效，低噪声并且对工艺技术，电源电压和温度变化基本上不敏感的电压调节电路。可以使用这样的电路来为例如在射频前端（RFFE）中找到的压控振荡器（VCO）提供调节电压。一个示例性电压调节电路通常包括被配置为提供或吸收参考电流的电流源和具有偏压支路和主支路的电流镜，其中偏压支路与电流源连接，其中主支路包括源极跟随器以提供调节电压，并且其中参考电流在用于调节电压的节点处可用。

8. 发明授权

US09520846B2 Current-driven baseband filter with reduced adjacent channel leakage ratio (ACLR) 有权
标题翻译：电流驱动的基带滤波器具有减少的相邻信道泄漏比（ACLR）
公开(公告)号：US09520846B2
公开(公告)日：2016-12-13
申请号：US14711194
申请日：2015-05-13
申请人： QUALCOMM Incorporated
发明人： Seyed Hossein Miri Lavasani , Cheng-Han Wang , Abbas Komijani , Mohammad Bagher Vahid Far
IPC分类号： H03F1/22 , H03F3/19 , H03F1/02
CPC分类号： H03F3/19 , H03F1/0205 , H03F3/45179 , H03F2200/294 , H03F2200/451 , H03F2203/45306 , H04B1/1036 , H04B2001/1045
摘要： Certain aspects of the present disclosure provide methods and apparatus for processing an input signal. One example apparatus is a circuit that generally includes an amplifier, comprising a first transistor and a second transistor connected in cascode with the first transistor; a buffer coupled to an output of the amplifier and configured to provide feedback to the amplifier; and a current source coupled to the second transistor and incorporated into a loop of the feedback to the amplifier.
摘要翻译：本公开的某些方面提供了用于处理输入信号的方法和装置。一个示例性装置是通常包括放大器的电路，包括与第一晶体管共栅共享的第一晶体管和第二晶体管; 耦合到所述放大器的输出并被配置为向所述放大器提供反馈的缓冲器; 以及电流源，耦合到第二晶体管并且并入到放大器的反馈回路中。

9. 发明申请

US20160126983A1 MULTI-BAND AMPLIFIER 有权
标题翻译：多功能放大器
公开(公告)号：US20160126983A1
公开(公告)日：2016-05-05
申请号：US14532309
申请日：2014-11-04
申请人： QUALCOMM Incorporated
发明人： Abbas Komijani , Mohammad Bagher Vahid Far , Amirpouya Kavousian , Alireza Khalili , Yashar Rajavi
IPC分类号： H04B1/04 , H04W72/04 , H04B7/04
CPC分类号： H04B1/0064 , H04B1/16 , H04B5/0031 , H04B5/0087 , H04B5/0093
摘要： A multi-band amplifier may operate in a first frequency band and a second frequency band. The multi-band amplifier may include a first amplifier, a second amplifier, and a coupler. The coupler may couple a signal, such as a communication signal, to a selected amplifier. In some embodiments, the coupler may include one or more inductive elements to couple the signal to the first or the second amplifier. In some embodiments, the inductive elements may include a balun.
摘要翻译：多频带放大器可以在第一频带和第二频带中操作。多频带放大器可以包括第一放大器，第二放大器和耦合器。耦合器可以将诸如通信信号的信号耦合到所选择的放大器。在一些实施例中，耦合器可以包括一个或多个感应元件以将信号耦合到第一或第二放大器。在一些实施例中，感应元件可包括平衡 - 不平衡转换器。

10. 发明授权

US09225369B2 Filtering blocker components of a signal 有权
标题翻译：滤波信号的阻塞组件
公开(公告)号：US09225369B2
公开(公告)日：2015-12-29
申请号：US14158225
申请日：2014-01-17
申请人： QUALCOMM Incorporated
发明人： Mohammad Bagher Vahid Far , Abbas Komijani , Amirpouya Kavousian , Mazhareddin Taghivand , Alireza Khalili
IPC分类号： H04B1/10 , H04B1/04 , H04B1/12 , H03F1/22 , H03F1/32 , H03F3/195 , H03F3/21 , H03F3/68 , H03H11/00 , H03F1/56
CPC分类号： H04B1/12 , H03F1/223 , H03F1/3223 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/68 , H03F2200/171 , H03F2200/222 , H03F2200/294 , H03H11/00 , H03H11/04
摘要： An apparatus includes a main amplifier configured to receive an input signal. The main amplifier is also configured to generate an output signal. The apparatus also includes an auxiliary path configured to phase-shift the input signal to generate a cancellation signal to reduce or cancel a blocker component of the output signal.
摘要翻译：一种装置包括：主放大器，被配置为接收输入信号。主放大器还被配置为产生输出信号。该装置还包括辅助路径，其被配置为对输入信号进行相移以产生消除信号以减少或消除输出信号的阻塞分量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式