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1. 发明授权

US07598808B2 Gigabit ethernet transceiver with analog front end 有权
标题翻译：具有模拟前端的千兆以太网收发器
公开(公告)号：US07598808B2
公开(公告)日：2009-10-06
申请号：US12037797
申请日：2008-02-26
申请人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
发明人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
IPC分类号： H03G3/10
CPC分类号： H03F1/32 , H03F3/347 , H03F3/505 , H03F2200/211 , H03F2200/252 , H03F2200/421 , H03F2200/513 , H03G1/0088 , H03G3/001 , H03G3/3036 , H03G3/3052 , H03G5/10 , H03H11/245
摘要： Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.
摘要翻译：电路从集成电路可编程增益衰减器中的信号路径中去除开关。可编程增益衰减器和可编程增益放大器通常使用半导体开关在信号电平之间切换。这种开关可能在信号中引入非线性。通过将开关与信号路径隔离，可以提高PGA的线性度。

2. 发明授权

US07248101B2 Biasing scheme for low supply headroom applications 有权
标题翻译：低供应净空应用的偏置方案
公开(公告)号：US07248101B2
公开(公告)日：2007-07-24
申请号：US11364030
申请日：2006-03-01
申请人： Arya R. Behzad , Frank W. Singor
发明人： Arya R. Behzad , Frank W. Singor
IPC分类号： G05F1/10
CPC分类号： H03F3/45183 , G05F3/262 , H03F2203/45508
摘要： Methods and apparatus for improving the current matching within current mirror circuits in applications such as low voltage integrated circuits. Embodiments of the present invention attempt to maintain the proper current ratio between reference and output supplies by adjusting the reference output of the current mirror. An existing reference voltage on the output side of the mirror can be used or a reference voltage can be created to be used for the voltage regulation of the reference side of the current mirror.
摘要翻译：用于改善电流镜像电路内的电流匹配的方法和装置，例如低压集成电路。本发明的实施例通过调节电流镜的参考输出来尝试维持参考电压和输出电源之间的适当电流比。可以使用反射镜的输出侧上的现有参考电压，或者可以创建用于电流镜的参考侧的电压调节的参考电压。

3. 发明授权

US07148750B2 Gigabit ethernet transceiver with analog front end 有权
公开(公告)号：US07148750B2
公开(公告)日：2006-12-12
申请号：US11417073
申请日：2006-05-02
申请人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
发明人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
IPC分类号： H03G3/10
CPC分类号： H03F1/32 , H03F3/347 , H03F3/505 , H03F2200/211 , H03F2200/252 , H03F2200/421 , H03F2200/513 , H03G1/0088 , H03G3/001 , H03G3/3036 , H03G3/3052 , H03G5/10 , H03H11/245
摘要： Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.

4. 发明授权

US07132888B2 Large gain range, high linearity, low noise MOS VGA 有权
标题翻译：大增益范围，高线性度，低噪声MOS VGA
公开(公告)号：US07132888B2
公开(公告)日：2006-11-07
申请号：US10809838
申请日：2004-03-26
申请人： Arya R. Behzad
发明人： Arya R. Behzad
IPC分类号： H03F3/45
CPC分类号： H03F1/3211 , H01F17/0006 , H01F17/0013 , H01F2017/0026 , H01F2017/0053 , H01F2021/125 , H01L23/5227 , H01L27/0248 , H01L27/08 , H01L2924/0002 , H01L2924/3011 , H03B5/364 , H03B2201/025 , H03B2201/0266 , H03D7/161 , H03D7/18 , H03G1/0029 , H03H11/1291 , H03J1/0075 , H03J3/04 , H03J3/08 , H03J3/185 , H03J2200/10 , H03L1/023 , H03L7/10 , H03L7/23 , H01L2924/00
摘要： An integrated receiver with channel selection and image rejection is substantially implemented on a single CMOS integrated circuit. A receiver front end provides programable attenuation and a programable gain low noise amplifier. LC filters integrated onto the substrate in conjunction with image reject mixers provide image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. Active filters utilize multi track spiral inductors with shields to increase circuit Q. Frequency planning provides additional image rejection. Local oscillator signal generation methods on chip reduce distortion. A PLL generates needed out of band LO signals. Direct synthesis generates in band LO signals. PLL VCOs are centered automatically. A differential crystal oscillator provides a frequency reference. Differential signal transmission throughout the receiver is used. ESD protection is provided by a pad ring and ESD clamping structure. Shunts utilize a gate boosting at each pin to discharge ESD build up. An IF VGA utilizes distortion cancellation achieved with cross coupled differential pair amplifiers having their Vds dynamically modified in conjunction with current steering of the differential pairs sources.
摘要翻译：具有通道选择和图像抑制的集成接收器基本上在单个CMOS集成电路上实现。接收机前端提供可编程衰减和可编程增益低噪声放大器。与图像抑制混合器一起集成到衬底上的LC滤波器提供图像频率抑制。过滤器调谐和电感Q补偿温度在芯片上执行。有源滤波器利用具有屏蔽的多轨螺旋电感器来增加电路Q.频率规划提供额外的图像抑制。本地振荡器信号产生方法在芯片上减少失真。 PLL产生所需的带外LO信号。直接合成产生带内LO信号。 PLL VCO自动居中。差分晶体振荡器提供频率参考。使用整个接收机的差分信号传输。 ESD保护由衬垫环和ESD夹紧结构提供。分流器利用每个引脚上的门极升压来放电ESD积聚。 IF VGA利用交叉耦合的差分对放大器实现的失真消除，其具有与差分对源的当前转向结合动态修改的V ds。

5. 发明授权

US07053715B2 Gigabit Ethernet transceiver with analog front end 失效
标题翻译：具有模拟前端的千兆以太网收发器
公开(公告)号：US07053715B2
公开(公告)日：2006-05-30
申请号：US11005603
申请日：2004-12-06
申请人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
发明人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
IPC分类号： H03G3/10
CPC分类号： H03F1/32 , H03F3/347 , H03F3/505 , H03F2200/211 , H03F2200/252 , H03F2200/421 , H03F2200/513 , H03G1/0088 , H03G3/001 , H03G3/3036 , H03G3/3052 , H03G5/10 , H03H11/245
摘要： Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.
摘要翻译：电路从集成电路可编程增益衰减器中的信号路径中去除开关。可编程增益衰减器和可编程增益放大器通常使用半导体开关在信号电平之间切换。这种开关可能在信号中引入非线性。通过将开关与信号路径隔离，可以提高PGA的线性度。

6. 发明授权

US06677818B2 Method and circuit for a dual supply amplifier 有权
标题翻译：双电源放大器的方法和电路
公开(公告)号：US06677818B2
公开(公告)日：2004-01-13
申请号：US09920842
申请日：2001-08-03
申请人： Frank W. Singor , Arya R. Behzad
发明人： Frank W. Singor , Arya R. Behzad
IPC分类号： H03G516
CPC分类号： H03F3/45183 , H03F3/45381 , H03F3/45475 , H03F2200/516 , H03F2203/45392 , H03F2203/45651 , H03F2203/45652 , H03F2203/45682 , H03F2203/45696 , H03F2203/45702
摘要： A circuit and method for bridging an analog signal between two integrated circuits operating at different supply voltages. The circuit is a two stage fixed gain amplifier. The first stage is a transconductance amplifier and the second stage is an operational amplifier. The first stage converts an input signal from a voltage into a current. The second stage converts the current signal to an output voltage signal.
摘要翻译：一种在不同电源电压下工作的两个集成电路之间桥接模拟信号的电路和方法。该电路是两级固定增益放大器。第一级是跨导放大器，而第二级是运算放大器。第一阶段将输入信号从电压转换为电流。第二级将电流信号转换为输出电压信号。

7. 发明授权

US07671681B2 Gigabit ethernet transceiver with analog front end 有权
标题翻译：具有模拟前端的千兆以太网收发器
公开(公告)号：US07671681B2
公开(公告)日：2010-03-02
申请号：US10282688
申请日：2002-10-29
申请人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
发明人： Arya R. Behzad , Klaas Bult , Ramon A. Gomez , Chi-Hung Lin , Tom W. Kwan , Oscar E. Agazzi , John L. Creigh , Mehdi Hatamian , David E. Kruse , Arthur Abnous , Henry Samueli
IPC分类号： H03G3/10
CPC分类号： H03F1/32 , H03F3/347 , H03F3/505 , H03F2200/211 , H03F2200/252 , H03F2200/421 , H03F2200/513 , H03G1/0088 , H03G3/001 , H03G3/3036 , H03G3/3052 , H03G5/10 , H03H11/245
摘要： Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.
摘要翻译：电路从集成电路可编程增益衰减器中的信号路径中去除开关。可编程增益衰减器和可编程增益放大器通常使用半导体开关在信号电平之间切换。这种开关可能在信号中引入非线性。通过将开关与信号路径隔离，可以提高PGA的线性度。

8. 发明授权

US07012464B2 Method and circuit for a dual supply amplifier 失效
公开(公告)号：US07012464B2
公开(公告)日：2006-03-14
申请号：US10984866
申请日：2004-11-10
申请人： Frank W. Singor , Arya R. Behzad
发明人： Frank W. Singor , Arya R. Behzad
IPC分类号： H03G5/16
CPC分类号： H03F3/45183 , H03F3/45381 , H03F3/45475 , H03F2200/516 , H03F2203/45392 , H03F2203/45651 , H03F2203/45652 , H03F2203/45682 , H03F2203/45696 , H03F2203/45702
摘要： A circuit and method for bridging an analog signal between two integrated circuits operating at different supply voltages. The circuit is a two stage fixed gain amplifier. The first stage is a transconductance amplifier and the second stage is an operational amplifier. The first stage converts an input signal from a voltage into a current. The second stage converts the current signal to an output voltage signal.

9. 发明授权

US06828854B2 Method and circuit for a dual supply amplifier 有权
公开(公告)号：US06828854B2
公开(公告)日：2004-12-07
申请号：US10745688
申请日：2003-12-29
申请人： Frank W. Singor , Arya R. Behzad
发明人： Frank W. Singor , Arya R. Behzad
IPC分类号： H03G516
CPC分类号： H03F3/45183 , H03F3/45381 , H03F3/45475 , H03F2200/516 , H03F2203/45392 , H03F2203/45651 , H03F2203/45652 , H03F2203/45682 , H03F2203/45696 , H03F2203/45702
摘要： A circuit and method for bridging an analog signal between two integrated circuits operating at different supply voltages. The circuit is a two stage fixed gain amplifier. The first stage is a transconductance amplifier and the second stage is an operational amplifier. The first stage converts an input signal from a voltage into a current. The second stage converts the current signal to an output voltage signal.

10. 发明授权

US6091275A Linear quad variable gain amplifier and method for implementing same 失效
标题翻译：线性四角可变增益放大器及其实现方法
公开(公告)号：US6091275A
公开(公告)日：2000-07-18
申请号：US140376
申请日：1998-08-26
申请人： Arya R. Behzad
发明人： Arya R. Behzad
IPC分类号： H03F3/45 , H03G1/00 , H03G3/10 , H03G7/06 , H03G3/30
CPC分类号： H03G7/06 , H03G1/0023
摘要： A VGA control circuit includes a differential control voltage generator having an input coupled to an external control voltage and having a pair of control voltage outputs, a transfer function compression region TFCR compensator coupled to the differential control voltage generator, and a TFCR detector coupled to the TFCR compensator and developing a compensator activation signal in response to the detection of a TFCR state in the transfer curve. A method for controlling a VGA circuit exhibiting transfer function logarithmic compression includes detecting when a VGA circuit is entering a logarithmic compression state, and applying an exponential compensation signal to the VGA circuit to cancel the compression state. A VGA system includes a VGA control system developing a plurality of differential control signals and a plurality of VGA stages coupled to the plurality of differential control signals. The control system includes a differential offset generator coupled to an internally generated control voltage, and a plurality of swing limiters developing the plurality of differential control signals. The voltage applied to the differential offset generator is generated by a PTAT and a tanh.sup.-1 generator which has its input tied to the external control voltage.
摘要翻译： VGA控制电路包括具有耦合到外部控制电压并具有一对控制电压输出的输入的差分控制电压发生器，耦合到差分控制电压发生器的传输函数压缩区域TFCR补偿器和耦合到差分控制电压发生器的TFCR检测器 TFCR补偿器，并且响应于传输曲线中的TFCR状态的检测而开发补偿器激活信号。一种控制显示传递函数对数压缩的VGA电路的方法包括检测VGA电路何时进入对数压缩状态，以及向VGA电路施加指数补偿信号以取消压缩状态。 VGA系统包括开发多个差分控制信号的VGA控制系统和耦合到多个差分控制信号的多个VGA级。控制系统包括耦合到内部产生的控制电压的差分偏移发生器以及展开多个差分控制信号的多个摆动限制器。施加到差分偏移发生器的电压由PTAT和tanh-1发生器产生，其输入与外部控制电压相关。

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