公开(公告)号：US20090041108A1

公开(公告)日：2009-02-12

申请号：US11837043

申请日：2007-08-10

申请人： Ofir Degani ,  Hasnain Lakdawala ,  Ashoke Ravi

发明人： Ofir Degani ,  Hasnain Lakdawala ,  Ashoke Ravi

IPC分类号： H03K7/10

CPC分类号： H04L25/4902

摘要： Briefly, in accordance with one or more embodiments, a digital transmitter may comprise two or more phase modulators in a cascaded arrangement. The phase modulators may modulate a local oscillator signal using control signals derived from the quadrature baseband data to be transmitted. A closed loop power control feedback arrangement may be used to compare the output power of the transmitter with a desired output signal, and make corrections to the output signal by modifying at least one of the control signals provided to the cascaded phase modulators.

摘要翻译： 简而言之，根据一个或多个实施例，数字发射机可以包括两个或更多个级联布置的相位调制器。 相位调制器可以使用从要发送的正交基带数据导出的控制信号来调制本地振荡器信号。 可以使用闭环功率控制反馈装置来将发射机的输出功率与期望的输出信号进行比较，并且通过修改提供给级联相位调制器的控制信号中的至少一个来对输出信号进行校正。

公开(公告)号：US20090034603A1

公开(公告)日：2009-02-05

申请号：US12176646

申请日：2008-07-21

申请人： Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

发明人： Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

IPC分类号： H03K7/08

CPC分类号： H03K7/10 ,  H03F3/2178 ,  H04B1/0483 ,  H04L25/4902

摘要： Briefly, in accordance with one or more embodiments, in a pulse position and pulse position modulation out-phasing transmitter, the range of the phase angle, theta, may be divided into more than one range to drive a first power amplifier with a first range of theta, and to drive a second power amplifier with a second range of theta. In one or more embodiments, a main power amplifier is driven with a first phase range having a higher probability density function, and an overload power amplifier is driven with a first phase range having a lower probability density function. In one or more embodiments, a full adder may be used to combine the two phases wherein the sum signal is used to drive the main power amplifier, and the carry signal is used to drive the overload power amplifier.

摘要翻译： 简而言之，根据一个或多个实施例，在脉冲位置和脉冲位置调制输出相位变送器中，相位角θ的范围可被划分成多于一个范围以驱动具有第一范围的第一功率放大器 的θ，并驱动具有θ的第二范围的第二功率放大器。 在一个或多个实施例中，主功率放大器由具有较高概率密度函数的第一相位范围驱动，而过载功率放大器由具有较低概率密度函数的第一相位范围驱动。 在一个或多个实施例中，全加器可以用于组合两相，其中求和信号用于驱动主功率放大器，并且进位信号用于驱动过载功率放大器。

公开(公告)号：US07212141B2

公开(公告)日：2007-05-01

申请号：US11178625

申请日：2005-07-11

申请人： Hasnain Lakdawala ,  Ashoke Ravi ,  Georgios Palaskas ,  Stefan H. Andersson ,  Krishnamurthy Soumyanath

发明人： Hasnain Lakdawala ,  Ashoke Ravi ,  Georgios Palaskas ,  Stefan H. Andersson ,  Krishnamurthy Soumyanath

IPC分类号： H03M1/84 ,  H03M1/62

CPC分类号： H03H15/02

摘要： Embodiments of a filter with gain are presented herein.

摘要翻译： 本文给出了具有增益的滤波器的实施例。

公开(公告)号：US08941520B2

公开(公告)日：2015-01-27

申请号：US13995156

申请日：2011-09-30

申请人： Hyung Seok Kim ,  Yee W. Li ,  Ashoke Ravi ,  Hasnain Lakdawala

发明人： Hyung Seok Kim ,  Yee W. Li ,  Ashoke Ravi ,  Hasnain Lakdawala

IPC分类号： H03M3/00 ,  H03M1/08 ,  H03M1/80 ,  H03M1/78 ,  H03M1/74 ,  H03M1/00 ,  H03M1/12 ,  G09G3/36

CPC分类号： H03M3/50 ,  G09G3/3688 ,  H03M1/00 ,  H03M1/0863 ,  H03M1/12 ,  H03M1/747 ,  H03M1/785 ,  H03M1/808 ,  H03M3/30 ,  H03M3/502

摘要： An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of the resistor-ladder network comprises an input end and an output end. The input end of each resistor is coupled to a corresponding bit signal of the multi-bit input signal, and the output end of each resistor is coupled to an output node of the resistor-ladder network. An output voltage is generated at the output node that is based on the multi-bit input signal. In one exemplary embodiment, the multi-bit input signal is a sigma-delta (ΣΔ) modulated multi-bit input signal. In another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are related by a binary weighting. In still another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are substantially equal.

摘要翻译： 逆变器驱动的电阻梯形数模（DAC）转换器包括一个电阻梯形网络，包括一个多位输入信号的每个位信号的电阻。 电阻梯形网络的每个电阻器包括输入端和输出端。 每个电阻器的输入端耦合到多位输入信号的对应位信号，并且每个电阻器的输出端耦合到电阻梯形网络的输出节点。 在输出节点处产生基于多位输入信号的输出电压。 在一个示例性实施例中，多比特输入信号是Σ-Δ（＆Sgr＆amp; Dgr）调制的多位输入信号。 在另一示例性实施例中，电阻梯形网络的电阻器的电阻值通过二进制加权相关。 在又一示例性实施例中，电阻梯形网络的电阻器的电阻值基本相等。

公开(公告)号：US08736384B2

公开(公告)日：2014-05-27

申请号：US12769806

申请日：2010-04-29

申请人： Ashoke Ravi ,  Ofir Degani ,  Hasnain Lakdawala ,  Masoud Sajadieh

发明人： Ashoke Ravi ,  Ofir Degani ,  Hasnain Lakdawala ,  Masoud Sajadieh

IPC分类号： H03L7/095

CPC分类号： H03L7/1978

摘要： In some embodiments, provided are calibration techniques for measuring mismatches between TDL delay stage elements, and in some cases, then compensating for the mismatches to minimize performance degradation.

摘要翻译： 在一些实施例中，提供了用于测量TDL延迟级元件之间的不匹配的校准技术，并且在一些情况下，然后补偿不匹配以最小化性能下降。

公开(公告)号：US08098726B2

公开(公告)日：2012-01-17

申请号：US12176646

申请日：2008-07-21

申请人： Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

发明人： Hasnain Lakdawala ,  Ashoke Ravi ,  Ofir Degani ,  Itshak Hod ,  Yorgos Palaskas ,  Masoud Sajadieh

IPC分类号： H03K7/08

CPC分类号： H03K7/10 ,  H03F3/2178 ,  H04B1/0483 ,  H04L25/4902

摘要： Briefly, in accordance with one or more embodiments, in a pulse position and pulse position modulation out-phasing transmitter, the range of the phase angle, theta, may be divided into more than one range to drive a first power amplifier with a first range of theta, and to drive a second power amplifier with a second range of theta. In one or more embodiments, a main power amplifier is driven with a first phase range having a higher probability density function, and an overload power amplifier is driven with a first phase range having a lower probability density function. In one or more embodiments, a full adder may be used to combine the two phases wherein the sum signal is used to drive the main power amplifier, and the carry signal is used to drive the overload power amplifier.

摘要翻译： 简而言之，根据一个或多个实施例，在脉冲位置和脉冲位置调制输出相位变送器中，相位角θ的范围可被划分成多于一个范围以驱动具有第一范围的第一功率放大器 的θ，并驱动具有θ的第二范围的第二功率放大器。 在一个或多个实施例中，主功率放大器由具有较高概率密度函数的第一相位范围驱动，而过载功率放大器由具有较低概率密度函数的第一相位范围驱动。 在一个或多个实施例中，全加器可以用于组合两相，其中求和信号用于驱动主功率放大器，并且进位信号用于驱动过载功率放大器。

公开(公告)号：US08096707B2

公开(公告)日：2012-01-17

申请号：US12164937

申请日：2008-06-30

申请人： Arijit Raychowdhury ,  Hasnain Lakdawala ,  Yee (William) Li ,  Greg Taylor ,  Soumyanath Krishnamurthy

发明人： Arijit Raychowdhury ,  Hasnain Lakdawala ,  Yee (William) Li ,  Greg Taylor ,  Soumyanath Krishnamurthy

IPC分类号： G01K7/00

CPC分类号： G01K7/015 ,  G01K2219/00

摘要： A thermal sensor is provided that includes a front-end component, an analog-to-digital converter and a digital backend. The front-end component including an array of current sources, a dynamic element matching (DEM) device, an analog chopper and two diodes to sense temperatures on the die. The front-end component to provide analog signals at two output nodes based on currents through the two diodes. The analog-to-digital converter to receive the analog signals from the front-end component and to provide an output signal. The digital backend to receive the output signal from the analog-to-digital converter and to provide a calculated temperature.

摘要翻译： 提供了一种热传感器，其包括前端部件，模数转换器和数字后端。 前端部件包括电流源阵列，动态元件匹配（DEM）器件，模拟斩波器和两个二极管，用于感测管芯上的温度。 前端组件根据两个二极管的电流在两个输出节点提供模拟信号。 模数转换器从前端组件接收模拟信号并提供输出信号。 数字后端从模数转换器接收输出信号并提供计算温度。

公开(公告)号：US20100164765A1

公开(公告)日：2010-07-01

申请号：US12319090

申请日：2008-12-31

申请人： Masaya Miyahara ,  Hasnain Lakdawala

发明人： Masaya Miyahara ,  Hasnain Lakdawala

IPC分类号： H03M3/00 ,  H03M1/66 ,  H03M1/10

CPC分类号： H03M1/1061 ,  H03M1/747

摘要： Provided is a DAC with tuning circuitry in accordance with some embodiments for tuning current sources in the DAC. The DAC may be used for a sigma-delta converter in some embodiments.

摘要翻译： 提供了一种具有根据一些实施例的用于调谐DAC中的电流源的调谐电路的DAC。 在一些实施例中，DAC可用于Σ-Δ转换器。

公开(公告)号：US07719389B2

公开(公告)日：2010-05-18

申请号：US11836538

申请日：2007-08-09

申请人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

发明人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

IPC分类号： H03H3/04 ,  H03H9/02

CPC分类号： H03H19/004 ,  H03H9/02007 ,  H03H2009/02204

摘要： Disclosed is a system and method for controlling a resonance frequency of a Film Bulk Acoustic Resonator (FBAR) device. The system includes at least one switching capacitor coupled to the FBAR device and a modulator. The at least one switching capacitor includes at least one capacitor and a switch configuration disposed in series with the FBAR device and the at least one capacitor, which is switch configuration capable of opening and closing connection of the at least one capacitor with the FBAR device. The modulator is coupled to the switch configuration, which generates a switching condition signal based on the manufacturing variation in the FBAR device and the environmental effects on the FBAR device. The switch configuration performs opening and closing of the connection of the at least one capacitor and the FBAR device based on the switching condition signal.

摘要翻译： 公开了一种用于控制膜体声波谐振器（FBAR）装置的谐振频率的系统和方法。 该系统包括耦合到FBAR器件和调制器的至少一个开关电容器。 所述至少一个开关电容器包括至少一个电容器和与所述FBAR器件和所述至少一个电容器串联布置的开关配置，所述至少一个电容器是能够打开和关闭所述至少一个电容器与所述FBAR器件的连接的开关配置。 调制器耦合到开关配置，其根据FBAR器件的制造变化和对FBAR器件的环境影响产生开关条件信号。 开关配置基于开关条件信号来执行至少一个电容器和FBAR器件的连接的打开和闭合。

公开(公告)号：US07683741B2

公开(公告)日：2010-03-23

申请号：US11936254

申请日：2007-11-07

申请人： Hiroyuki Ito ,  Hasnain Lakdawala

发明人： Hiroyuki Ito ,  Hasnain Lakdawala

IPC分类号： H03H11/10 ,  H03H9/02 ,  H01L41/04 ,  H03B5/32

CPC分类号： H03H9/0542

摘要： Disclosed is a package having a thin film bulk acoustic resonator (FBAR). The package may be utilized for suppressing spurious resonance occurred during operation of the FBAR. The package includes a negative impedance converter (NIC) operatively coupled to the FBAR through at least one interconnect. The at least one interconnect includes transmission lines and bonding wires. The package further includes a filter operatively coupled to the NIC. The filter exhibits a parallel resonance at a predefined frequency. The parallel resonance exhibited by the filter is converted to a series resonance by the NIC such that the series resonance of the NIC is responsible for suppressing the spurious resonance occurring during the operation of the FBAR.

摘要翻译： 公开了具有薄膜体声波谐振器（FBAR）的封装。 该封装可用于抑制FBAR运行期间发生的杂散共振。 该封装包括通过至少一个互连可操作地耦合到FBAR的负阻抗转换器（NIC）。 至少一个互连包括传输线和接合线。 该封装还包括可操作地耦合到NIC的滤波器。 滤波器以预定的频率呈现并联谐振。 由滤波器显示的并联谐振被NIC转换成串联谐振，使得NIC的串联谐振负责抑制在FBAR的操作期间发生的寄生谐振。