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。

公开(公告)号：US20060221905A1

公开(公告)日：2006-10-05

申请号：US11168733

申请日：2005-06-28

申请人： Arya Behzad ,  Jason Trachewsky ,  R. Moorti

发明人： Arya Behzad ,  Jason Trachewsky ,  R. Moorti

IPC分类号： H04B7/216

CPC分类号： H04B1/40

摘要： A multiple input multiple output (MIMO) RF transceiver system includes a plurality of RF transceiver ICs, a crystal, and master oscillation coupling. Each of the plurality of RF transceiver ICs includes crystal oscillator circuitry. Crystal oscillator circuitry of the first RF transceiver IC and a crystal are operable to produce a master oscillation. Master oscillation coupling couples the master oscillation produced by the first RF transceiver IC to the at least one other RF transceiver IC. In one embodiment, the master oscillation is passed from the first RF transceiver IC to each other transceiver RF ICs. In another embodiment, the master oscillation is used to produce a slave oscillation at a second RF transceiver IC and subsequent RF transceiver ICs produce there own slave oscillation based upon a slave oscillation received from a prior RF transceiver IC.

摘要翻译： 多输入多输出（MIMO）RF收发器系统包括多个RF收发器IC，晶体和主振荡耦合。 多个RF收发器IC中的每一个包括晶体振荡器电路。 第一RF收发器IC和晶体的晶体振荡器电路可操作以产生主振荡。 主振荡耦合将由第一RF收发器IC产生的主振荡耦合到至少一个其它RF收发器IC。 在一个实施例中，主振荡从第一RF收发器IC传递到彼此的收发器RF IC。 在另一个实施例中，主振荡用于在第二RF收发器IC产生从动振荡，并且随后的RF收发器IC基于从先前RF收发器IC接收的从动振荡而产生自身的从动振荡。

公开(公告)号：US20060094395A1

公开(公告)日：2006-05-04

申请号：US11303235

申请日：2005-12-16

申请人： C. Lee ,  Arya Behzad

发明人： C. Lee ,  Arya Behzad

IPC分类号： H04B1/28 ,  H04B1/18 ,  H04B1/10

CPC分类号： H04B1/30

摘要： An scheme to provide local oscillator feedthrough offset cancellation to remove baseband and radio frequency coupled offsets. Two separate offset cancellation currents are injected at a driver which drives a baseband signal into a mixer to mix with a local oscillator signal. One offset cancellation current cancels a baseband local oscillator feedthrough offset, while the other offset cancellation current cancels a radio frequency local oscillator feedthrough offset.

摘要翻译： 提供本地振荡器馈通偏移消除以去除基带和射频耦合偏移的方案。 在驱动基带信号的驱动器中注入两个单独的偏移消除电流到混频器以与本地振荡器信号混频。 一个偏移消除电流消除基带本地振荡器馈通偏移，而另一个偏移消除电流消除射频本地振荡器馈通偏移。

公开(公告)号：US20060057990A1

公开(公告)日：2006-03-16

申请号：US11167358

申请日：2005-06-27

申请人： Arya Behzad ,  C. Lee

发明人： Arya Behzad ,  C. Lee

IPC分类号： H04B7/00 ,  H04B1/06

CPC分类号： H03F3/45188 ,  H03F1/3211 ,  H03F3/19 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45318 ,  H03F2203/45332 ,  H03F2203/45338 ,  H03F2203/45512 ,  H03F2203/45526 ,  H03F2203/45638

摘要： A RF differential gain stage has cross-coupled capacitors between input and output nodes of the amplifier stage to boost gain. The gain boost allows cancellation of the series resistance of an inductive load of the amplifier stage.

摘要翻译： RF差分增益级在放大器级的输入和输出节点之间具有交叉耦合电容，以增强增益。 增益增益允许消除放大器级的感性负载的串联电阻。

公开(公告)号：US20060028280A1

公开(公告)日：2006-02-09

申请号：US11247852

申请日：2005-10-11

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H03F1/22

CPC分类号： H03F1/3205 ,  H03F1/0261 ,  H03F1/22 ,  H03F2200/372

摘要： A power amplifier includes a transconductance stage and a modulation detection and bias determination module, and may include a cascode stage. The modulation detection and bias determination module operably couples to the transconductance stage and to the cascode stage when present and is operable to detect modulation characteristics of an signal operated upon by the transconductance stage. The modulation detection and bias determination module is also operable to controllably bias the transconductance stage and/or the cascode stage when present based upon detected modulation characteristics. The detected modulation characteristics are typically determined based upon a measured signal level, e.g., voltage level, current level, or power level, of the signal operated upon by the transconductance device. For non-constant envelope modulations, the signal level varies over time with the modulation envelope. The operational characteristics of the power amplifier, e.g., biasing condition(s), are therefore varied over time with the variation of the modulation.

摘要翻译： 功率放大器包括跨导级和调制检测和偏置确定模块，并且可以包括级联级。 调制检测和偏置确定模块在存在时可操作地耦合到跨导级和共源共栅级，并且可操作以检测由跨导级操作的信号的调制特性。 调制检测和偏置确定模块还可操作以基于检测到的调制特性来可控地偏置跨导级和/或共存共栅级。 检测的调制特性通常基于由跨导装置操作的信号的测量信号电平，例如电压电平，电流电平或功率电平来确定。 对于非恒定包络调制，信号电平随时间随调制包络而变化。 因此，功率放大器的操作特性，例如偏置条件，随着时间的推移随着调制的变化而变化。

公开(公告)号：US20050168261A1

公开(公告)日：2005-08-04

申请号：US11087662

申请日：2005-03-24

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H03G1/00 ,  H03G3/00 ,  H03G3/30 ,  H03G3/12

CPC分类号： H03G1/0088 ,  H03G3/001 ,  H03G3/3036

摘要： An apparatus for providing a programmable gain attenuator (PGA) while minimizing the influence of semiconductor switches on the signal being attenuated. An example apparatus comprises a impedance ladder with taps forming the junctions between impedances the PGA is then programmed by grounding the taps through terminating resistors.

公开(公告)号：US20050101280A1

公开(公告)日：2005-05-12

申请号：US11021631

申请日：2004-12-22

申请人： Arya Behzad

发明人： Arya Behzad

IPC分类号： H03D7/14 ,  H03B19/00 ,  H04B1/18 ,  H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0025 ,  H03D2200/0084

摘要： A mixer includes a reference current source, a programmable gain RF transconductance section or an RF transconductance section, switching quad native transistors or switching quad transistors, and a folded-cascoded common mode output section or an output section. When the mixer included the programmable gain RF transconductance section, the gain of the mixer is adjustable. When the mixer includes the switching quad native transistors, flicker noise of the mixer is reduced. When the mixer includes the folded-cascoded common mode output section, the mixer operates reliably from low supply voltages.

摘要翻译： 混频器包括参考电流源，可编程增益RF跨导部分或RF跨导部分，开关四原子晶体管或开关四极管，以及折叠共源共模输出部分或输出部分。 当混频器包括可编程增益RF跨导部分时，混频器的增益可调。 当混合器包括开关四态天生晶体管时，混频器的闪烁噪声减小。 当混频器包括折叠共源共模输出部分时，混频器从低电源电压可靠地运行。

公开(公告)号：US08670733B2

公开(公告)日：2014-03-11

申请号：US13355739

申请日：2012-01-23

申请人： Arya Behzad ,  Ahmadreza Rofougaran

发明人： Arya Behzad ,  Ahmadreza Rofougaran

IPC分类号： H04B17/02 ,  H04B7/08 ,  H03D5/00 ,  H04B1/16 ,  H04M1/00

CPC分类号： H04B1/0067 ,  H04B1/005 ,  H04B1/406

摘要： A multimode communication device with a shared signal path programmable filter and a method for utilizing a shared signal path programmable filter in a multimode communication device. Various aspects of the present invention comprise a first module adapted to receive a first communication signal (e.g., corresponding to a first communication protocol) and a second module adapted to receive a second communication signal (e.g., corresponding to a second communication protocol). A shared filter, communicatively coupled to the first and second modules, may be adapted to filter the first and/or second communication signals in accordance with a plurality of selectable sets of filter response characteristics (e.g., associated with the first and second communication protocols). A filter control module may be adapted to select a set of filter response characteristics from a plurality of such sets and program the shared filter to filter a communication signal in accordance with the selected set.

摘要翻译： 一种具有共享信号路径可编程滤波器的多模通信装置和在多模通信装置中利用共享信号路径可编程滤波器的方法。 本发明的各个方面包括适于接收第一通信信号（例如，对应于第一通信协议）的第一模块和适于接收第二通信信号（例如，对应于第二通信协议）的第二模块。 通信地耦合到第一和第二模块的共享滤波器可以适于根据多个可选择的滤波器响应特性集（例如，与第一和第二通信协议相关联）来过滤第一和/或第二通信信号， 。 滤波器控制模块可以适于从多个这样的集合中选择一组滤波器响应特性，并且对共享滤波器进行编程以根据所选择的集合来过滤通信信号。