公开(公告)号：US20080137785A1

公开(公告)日：2008-06-12

申请号：US11618720

申请日：2006-12-29

申请人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

发明人： Qiang Li ,  Razieh Roufoogaran ,  Keith Carter ,  Arya Behzad

IPC分类号： H03D1/04

CPC分类号： H03D3/009

摘要： Certain aspects of a method and system for RC-CR quadrature generation with wideband coverage and process compensation may include determining an amplitude mismatch between an in-phase (I) component and a quadrature (Q) component of a signal generated in a radio frequency (RF) transmitter or receiver. A variation in resistance of a quadrature network associated with the I component and Q component may be determined. The determined amplitude mismatch and the determined variation in the resistance of the quadrature network may be compensated by adjusting a resistance of a portion of the quadrature network associated with the I component and a resistance of a portion of the quadrature network associated with the Q component.

摘要翻译： 用于具有宽带覆盖和过程补偿的RC-CR正交生成的方法和系统的某些方面可以包括确定在射频中产生的信号的同相（I）分量和正交（Q）分量之间的幅度失配（ RF）发射机或接收机。 可以确定与I分量和Q分量相关联的正交网络的电阻变化。 确定的幅度失配和确定的正交网络的电阻的变化可以通过调整与I分量相关联的正交网络的一部分的电阻和与Q分量相关联的正交网络的一部分的电阻来补偿。

公开(公告)号：US20080137773A1

公开(公告)日：2008-06-12

申请号：US11618871

申请日：2006-12-31

申请人： Ali Afsahi ,  Vikram Magoon ,  Arya Behzad

发明人： Ali Afsahi ,  Vikram Magoon ,  Arya Behzad

IPC分类号： H04L27/04

CPC分类号： H03G3/3042 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/45188 ,  H03F3/72 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2203/21145 ,  H03F2203/45396 ,  H03F2203/45481 ,  H03F2203/45638 ,  H03F2203/7236

摘要： Aspects of a method and system for enhancing efficiency by modulating power amplifier (PA) gain are presented. Aspects of the system may comprise a PA gain modulator that enables modification of an amplitude of a digital baseband signal. A baseband processor may enable computation of a first gain value based on the modification. The baseband processor may enable computation of a second gain value based on the first gain value. A PA may enable generation of an RF output signal based on the modified digital baseband signal and the second gain value.

摘要翻译： 提出了通过调制功率放大器（PA）增益来提高效率的方法和系统的方面。 系统的方面可以包括能够修改数字基带信号的幅度的PA增益调制器。 基带处理器可以使得能够基于修改来计算第一增益值。 基带处理器可以使得能够基于第一增益值来计算第二增益值。 PA可以基于修改的数字基带信号和第二增益值来实现RF输出信号的产生。

公开(公告)号：US20080030279A1

公开(公告)日：2008-02-07

申请号：US11590452

申请日：2006-10-31

申请人： Adedayo Ojo ,  Arya Behzad

发明人： Adedayo Ojo ,  Arya Behzad

IPC分类号： H03F3/191

CPC分类号： H03F3/45188 ,  H03F1/42 ,  H03F1/56 ,  H03F3/191 ,  H03F2200/451 ,  H03F2200/465 ,  H03F2200/78 ,  H03F2203/45521 ,  H03F2203/45606 ,  H03F2203/45626 ,  H03H11/1213 ,  H03H11/1291

摘要： According to an example embodiment, an amplitude feedback loop may include an RF amplifier, a detector, a comparator, and a Q-enhancement cell. In an example embodiment, the RF amplifier has an output signal, and the detector has an input coupled to the output signal of the RF amplifier and is configured to detect a level of the output signal of the RF amplifier. The comparator circuit may receive as inputs a reference voltage and the output of the detector. Also, the comparator circuit is configured to output a control signal based on a difference between the reference voltage and the output signal of the power detector. The Q-enhancement cell may be coupled to the RF amplifier and have an input coupled to an output of the comparator circuit. A bias current of the Q-enhancement cell may be adjusted based on the control signal output by the comparator circuit.

摘要翻译： 根据示例实施例，幅度反馈环路可以包括RF放大器，检测器，比较器和Q增强单元。 在示例实施例中，RF放大器具有输出信号，并且检测器具有耦合到RF放大器的输出信号的输入，并被配置为检测RF放大器的输出信号的电平。 比较器电路可以接收参考电压和检测器的输出作为输入。 此外，比较器电路被配置为基于功率检测器的参考电压和输出信号之间的差来输出控制信号。 Q增强单元可以耦合到RF放大器并且具有耦合到比较器电路的输出的输入。 可以基于由比较器电路输出的控制信号来调整Q增强单元的偏置电流。

公开(公告)号：US07292102B2

公开(公告)日：2007-11-06

申请号：US11167359

申请日：2005-06-27

申请人： C. Paul Lee ,  Arya Behzad

发明人： C. Paul Lee ,  Arya Behzad

IPC分类号： H03F3/45

CPC分类号： H03G1/0029 ,  H03F3/45179

摘要： An apparatus and method to use a shunt network across source terminals of cascode transistors that drive a differential current to control gain. When the gates of the cascode transistors and transistors of the shunt network are activated by a same bias voltage, the gain control is substantially independent of process, voltage and temperature variations.

摘要翻译： 在串联晶体管的源极端子上使用分流网络的装置和方法，其驱动差分电流以控制增益。 当并联网络的共源共栅晶体管和晶体管的栅极被相同的偏置电压激活时，增益控制基本上与过程，电压和温度变化无关。

公开(公告)号：US20070173286A1

公开(公告)日：2007-07-26

申请号：US11703421

申请日：2007-02-06

申请人： Keith Carter ,  Arya Behzad

发明人： Keith Carter ,  Arya Behzad

IPC分类号： H04B1/44 ,  H04M1/00

CPC分类号： H04B1/0082 ,  H04M2250/02 ,  H04M2250/06 ,  H04W88/00

摘要： A Radio Frequency (RF) transceiver Integrated Circuit (IC) includes a plurality -of RF transceivers, local oscillation generation circuitry that produces a local oscillation, and local oscillation distribution circuitry. The local oscillation distribution circuitry couples to the local oscillation generation circuitry and includes a plurality of local oscillation repeater circuits. Each local oscillation repeater circuit corresponds to a respective one of the plurality of RF transceivers (transmitter, receiver, or both) Each local oscillation repeater circuit includes a local oscillation repeater circuit input, a local oscillation repeater circuit interface driver output coupled to respective one of the plurality of RF transceivers, and a local oscillation repeater circuit output. Each local oscillation repeater circuit also includes a first driver having as an input the local oscillation repeater circuit input and as an output the local oscillator repeater circuit output and a second driver having as an input the local oscillation repeater circuit input and as an output the local oscillation repeater circuit interface driver output.

摘要翻译： 射频（RF）收发器集成电路（IC）包括多个RF收发器，产生本地振荡的本地振荡发生电路和本地振荡分配电路。 本地振荡分配电路耦合到本地振荡发生电路并且包括多个本地振荡中继器电路。 每个本地振荡中继器电路对应于多个RF收发器（发射机，接收机或两者）中的相应一个。每个本地振荡中继器电路包括本地振荡中继器电路输入，本地振荡中继器电路接口驱动器输出耦合到相应的一个 多个RF收发器和本地振荡中继器电路输出。 每个本地振荡中继器电路还包括第一驱动器，其具有作为本地振荡中继器电路输入的输入和作为本地振荡器中继器电路输出的输出，以及具有作为本地振荡中继器电路输入的输入的第二驱动器和作为输出的本地振荡器 振荡中继器电路接口驱动器输出。

公开(公告)号：US20070142098A1

公开(公告)日：2007-06-21

申请号：US11376647

申请日：2006-03-15

申请人： Arya Behzad ,  Ahmadreza Rofougaran

发明人： Arya Behzad ,  Ahmadreza Rofougaran

IPC分类号： H04B1/38 ,  H04M1/00

CPC分类号： H04W52/028 ,  H04M1/72566 ,  H04M1/72569 ,  Y02D70/1224 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162

摘要： A system and method providing power-save operation in a multimode communication device. Various aspects of the present invention may comprise determining to communicate in a first communication mode and not in a second communication mode. In response to such determination, a first set of components associated with communicating in the first communication mode may be placed in a normal operational state, and a second set of components associated with communicating in the second communication mode and not with communicating in the first communication mode may be placed in a power-save state. Communication may then occur utilizing at least the first set of components. Various aspects of the present invention may also comprise managing power-save operation for components that may be shared between a plurality of communication modes.

摘要翻译： 一种在多模通信设备中提供省电操作的系统和方法。 本发明的各个方面可以包括确定以第一通信模式而不是第二通信模式进行通信。 响应于这种确定，与第一通信模式中的通信相关联的第一组组件可以被置于正常操作状态，以及与第二通信模式中的通信相关联的第二组组件，而不是在第一通信中进行通信 模式可能被置于省电状态。 然后可以利用至少第一组成分进行通信。 本发明的各个方面还可以包括管理可以在多个通信模式之间共享的组件的节电操作。

公开(公告)号：US20070077904A1

公开(公告)日：2007-04-05

申请号：US11246579

申请日：2005-10-07

申请人： Michael Kappes ,  Arya Behzad

发明人： Michael Kappes ,  Arya Behzad

IPC分类号： H04B7/00 ,  H04B1/28 ,  H04B1/06

CPC分类号： H03G9/02 ,  H03F3/211 ,  H03F3/24 ,  H03F3/45475 ,  H03F2200/372 ,  H03F2203/45522 ,  H03G9/005

摘要： An integrated circuit radio transceiver and method therefor includes a high-pass variable gain amplifier (HPVGA) operably disposed within one of the transmitter and the receiver front ends operable to provide a linear variable gain and a substantially constant high-pass frequency corner that does not vary with changes in gain level settings. The HPVGA includes an amplifier operably disposed to receive an input signal and to produce an amplified output based upon the input signal, an adjustable resistance block operable to adjust resistance based upon a gain control input and corner drift compensation block operably disposed to provide corner frequency compensation at the input terminal of the amplifier that is further coupled to receive the input signal from the adjustable resistance block.

摘要翻译： 集成电路无线电收发器及其方法包括可操作地设置在发射机和接收机前端之一内的高通可变增益放大器（HPVGA），其可操作以提供线性可变增益和基本上恒定的高通频率角 随着增益级别设置的变化而变化。 HPVGA包括可操作地布置成接收输入信号并基于输入信号产生放大输出的放大器，可调电阻块，其可操作以基于增益控制输入和拐角漂移补偿块来调整电阻，所述增益控制输入和拐角漂移补偿块可操作地设置以提供拐角频率补偿 在放大器的输入端处，其进一步耦合以从可调电阻块接收输入信号。

公开(公告)号：US20070064779A1

公开(公告)日：2007-03-22

申请号：US11246940

申请日：2005-10-07

申请人： Michael Kappes ,  Arya Behzad

发明人： Michael Kappes ,  Arya Behzad

IPC分类号： H04L5/16

CPC分类号： H03K3/02337 ,  H04L25/0292

摘要： An analog comparator circuit with associated hysteresis logic operably disposed to provide a logic switching mechanism based upon an input voltage level includes a voltage comparator block operably disposed to receive a voltage input signal at a positive terminal of the voltage comparator block and a selected reference voltage at a negative terminal of the voltage comparator block and is operable to produce a logic output based upon a favorable comparison. The hysteresis logic block is operable to produce one of a plurality of reference voltage levels to the negative terminal of the voltage comparator block as the selected reference voltage based upon a two-level reference signal input and further based upon a detected transition in logic of an output produced by the voltage comparator block wherein the output is received by the hysteresis logic block in a feedback signal.

摘要翻译： 具有可操作地设置以提供基于输入电压电平的逻辑开关机构的相关联的滞后逻辑的模拟比较器电路包括可操作地设置为在电压比较器块的正端子处接收电压输入信号的电压比较器块和在电压比较器块的正端子处的选择的参考电压 电压比较器块的负端子，并且可操作以基于有利的比较产生逻辑输出。 滞后逻辑块可操作以基于输入的两电平参考信号产生多个参考电压电平到电压比较器块的负端子作为所选择的参考电压，并且还基于检测到的逻辑中的转换 由电压比较器块产生的输出，其中输出由反馈信号中的滞后逻辑块接收。

公开(公告)号：US20060229039A1

公开(公告)日：2006-10-12

申请号：US11284203

申请日：2005-11-21

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H04B1/18 ,  H04B1/28

CPC分类号： H04B1/18 ,  H03F3/24 ,  H04B2001/0408

摘要： A multi-band integrated circuit radio transceiver comprising receive and transmit radio front end circuit blocks further includes a local oscillation generator for generating a local oscillation for use by the receive and transmit radio front end circuit blocks to down convert received RF signals to baseband or low intermediate frequency signals and for use by the transmit front end circuit blocks to up-convert outgoing communication signals to RF, respectively. The transceiver further includes at least one buffering element coupled disposed in the local oscillation path that produces a buffered oscillation based upon the local oscillation to at least one front end circuit block wherein the buffering element includes a differentially arranged amplifier stage having a load and a cross-coupled capacitive element coupled between input and output nodes of the amplifier stage and at least one of an inductive device or a selectable capacitive device.

摘要翻译： 包括接收和发送无线电前端电路块的多频带集成电路无线电收发机还包括本地振荡发生器，用于产生本地振荡，供接收和发送无线电前端电路块使用，以将接收到的RF信号下变频为基带或低 中频信号，并且由发射前端电路块用于分别将输出通信信号上变频到RF。 收发器还包括耦合到本地振荡路径中的至少一个缓冲元件，该缓冲元件基于本地振荡产生到至少一个前端电路块的缓冲振荡，其中缓冲元件包括具有负载和交叉的差分布置的放大器级 耦合在放大器级的输入和输出节点之间的耦合的电容元件以及电感器件或可选择的电容器件中的至少一个。

公开(公告)号：US20060223483A1

公开(公告)日：2006-10-05

申请号：US11173072

申请日：2005-07-01

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H04B1/26 ,  H04B1/28 ,  H04M1/00

CPC分类号： H04B1/30 ,  H04B1/406

摘要： A multiple band direct conversion radio frequency (RF) transceiver integrated circuit (IC) includes a multiple band direct conversion transmitter section, a multiple band direct conversion receiver section, and a local oscillation module. The multiple band direct conversion transmitter section includes a transmit baseband module and a multiple frequency band transmission module. The multiple band direct conversion receiver section includes a multiple frequency band reception module and a receiver baseband module. The local oscillation generation module is operably coupled to generate a first frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the first mode and operably coupled to generate a second frequency band local oscillation when the multiple band direct conversion RF transceiver IC is in the second mode.

摘要翻译： 多频带直接转换射频（RF）收发机集成电路（IC）包括多频带直接转换发射机部分，多频带直接转换接收机部分和本地振荡模块。 多频带直接变换发射机部分包括发射基带模块和多频带传输模块。 多频带直接转换接收机部分包括多频带接收模块和接收机基带模块。 当多频带直接转换RF收发器IC处于第一模式时，本地振荡产生模块可操作地耦合以产生第一频带本地振荡，并且当多频带直接转换RF收发器IC处于第一模式时可操作地耦合以产生第二频带本地振荡， 处于第二种模式。