公开(公告)号：US20090085597A1

公开(公告)日：2009-04-02

申请号：US12261833

申请日：2008-10-30

申请人： Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  James Y.C. Chang

发明人： Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  James Y.C. Chang

IPC分类号： G01R31/26

CPC分类号： H01L22/20 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H03F3/211 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102

摘要： A system or apparatus for monitoring an Integrated Circuit (IC) chip includes: a sense circuit at least partially constructed on the IC chip and configured to produce one or more sense signals each indicative of a corresponding process-dependent circuit parameter of the IC chip; and a digitizer module configured to produce, responsive to the one or more sense signals, one or more digitized signals each representative of a corresponding one of the sense signals. A controller is configured to determine a value of one or more of the process-dependent circuit parameters based on one or more of the digitized signals.

摘要翻译： 用于监控集成电路（IC）芯片的系统或装置包括：感测电路，至少部分地构造在IC芯片上并被配置为产生一个或多个感测信号，每个感测信号指示IC芯片的相应的与处理有关的电路参数; 以及数字转换器模块，被配置为响应于所述一个或多个感测信号产生一个或多个数字化信号，每一个表示所述感测信号中相应的一个感测信号。 控制器被配置为基于一个或多个数字化信号来确定一个或多个处理相关电路参数的值。

公开(公告)号：US07005969B2

公开(公告)日：2006-02-28

申请号：US10799212

申请日：2004-03-12

申请人： David A. Fisher ,  Lawrence M. Burns ,  Stephen E. Muther

发明人： David A. Fisher ,  Lawrence M. Burns ,  Stephen E. Muther

IPC分类号： H04B1/00 ,  G08C19/00

CPC分类号： H04L12/10 ,  H04B3/542 ,  H04B2203/5437 ,  H04B2203/5441 ,  H04B2203/5445 ,  H04B2203/547 ,  H04B2203/5483 ,  H04B2203/5491 ,  Y10T307/832

摘要： Power supply current, sufficient to power a remote network device, is transmitted concurrently with a network data signal over a transmission line. A power-sourcing network device that can include a coupling circuit provides power and data to the remote network device. The remote network device (which can be a wireless access point) can separate the power signal from the data signal and use the power supply current to further process or retransmit the data signal. The power signal may be a low frequency relative to the frequency of the data signal, or it may be DC.

公开(公告)号：US06911865B2

公开(公告)日：2005-06-28

申请号：US10909097

申请日：2004-08-02

申请人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

发明人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

IPC分类号： H03F3/45 ,  H03G1/00 ,  H03G3/30

CPC分类号： H03F3/45183 ,  H03F3/45201 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45464 ,  H03F2203/45466 ,  H03F2203/45638 ,  H03F2203/45696 ,  H03G1/0029 ,  H03G3/3036 ,  H03G3/3052

摘要： Provided is a method and system for producing a drive signal for a current steering amplifier. An exemplary method comprises receiving a supply voltage signal and a differential input signal as a circuit input. A differential amplifier drive signal is produced in response to the received supply voltage signal, the received differential input signal, and the received differential control signal. The received differential input signal is adjusted to a value where magnitudes of negative and positive components of the differential control signal become equal to one another and are within a predetermined amount of a magnitude of the supply voltage signal.

摘要翻译： 提供了一种用于产生用于当前转向放大器的驱动信号的方法和系统。 一种示例性方法包括接收电源电压信号和差分输入信号作为电路输入。 响应于所接收的电源电压信号，接收的差分输入信号和接收的差分控制信号产生差分放大器驱动信号。 接收到的差分输入信号被调整为差分控制信号的负分量和正分量的大小变得彼此相等并且在电源电压信号的大小的预定量内的值。

公开(公告)号：US06838937B2

公开(公告)日：2005-01-04

申请号：US10658837

申请日：2003-09-10

申请人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

发明人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

IPC分类号： H03F3/45 ,  H03G1/00 ,  H03G3/30 ,  H03F3/68

CPC分类号： H03F3/45183 ,  H03F3/45201 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45464 ,  H03F2203/45466 ,  H03F2203/45638 ,  H03F2203/45696 ,  H03G1/0029 ,  H03G3/3036 ,  H03G3/3052

摘要： Provided is a system for implementing gain control in an amplification module comprising a first stage amplifier having a number of first stage input and output ports. The first stage amplifier is configured to provide first stage amplification to a received input signal and produce from the amplified input signal a number of output signals. Also included are a number of second stage amplifiers, each having second stage input and output ports, the second stage input ports being respectively coupled to the first stage output ports and being configured to receive the number of output signals. A gain control device is coupled to at least one from the group including the first stage input ports, the first stage output ports, and the second stage output ports. The gain control device is also configured to control a gain of at least one of the first stage amplifier and one or more of the number of second stage amplifiers.

摘要翻译： 提供了一种用于在放大模块中实现增益控制的系统，其包括具有多个第一级输入和输出端口的第一级放大器。 第一级放大器被配置为向接收到的输入信号提供第一级放大，并且从放大的输入信号产生多个输出信号。 还包括多个第二级放大器，每个具有第二级输入和输出端口，第二级输入端口分别耦合到第一级输出端口并且被配置为接收多个输出信号。 增益控制装置耦合到包括第一级输入端口，第一级输出端口和第二级输出端口的组中的至少一个。 增益控制装置还被配置为控制第一级放大器和多个第二级放大器中的至少一个的增益。

公开(公告)号：US06801085B2

公开(公告)日：2004-10-05

申请号：US10630870

申请日：2003-07-31

申请人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

发明人： Adel Fanous ,  Leonard Dauphinee ,  Lawrence M. Burns ,  Donald McMullin

IPC分类号： H03F368

CPC分类号： H03F3/45183 ,  H03F3/45201 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45302 ,  H03F2203/45311 ,  H03F2203/45464 ,  H03F2203/45466 ,  H03F2203/45638 ,  H03F2203/45696 ,  H03G1/0029 ,  H03G3/3036 ,  H03G3/3052

摘要： A system is provided for activating gain stages in an amplification module. The system includes an amplification module including a first group of amplifiers. Inverting output ports of each of the first group of amplifiers are coupled to a module inverting output terminal, and non-inverting output ports are coupled to a module non-inverting output terminal. A divider network is provided and is coupled to the input ports of the first group of amplifiers. A second group of amplifiers is also provided. Each amplifier of the second group corresponds to one of the amplifiers in the first group, has an inverting input port coupled to the second module inverting input terminal and to output ports of the divider network, and a non-inverting input port coupled to the second non-inverting input terminal. The inverting output ports of the second group of amplifiers are coupled to the inverting output terminal and non-inverting output ports of the second group of amplifiers are coupled to the non-inverting output terminal.

摘要翻译： 提供了用于激活放大模块中的增益级的系统。 该系统包括具有第一组放大器的放大模块。 第一组放大器中的每一个的反相输出端口耦合到模块反相输出端子，并且非反相输出端口耦合到模块非反相输出端子。 提供分频器网络并且耦合到第一组放大器的输入端口。 还提供了第二组放大器。 第二组的每个放大器对应于第一组中的一个放大器，具有耦合到第二模块反相输入端并且分配网络的输出端口的反相输入端口以及耦合到第二组的第二组的非反相输入端口 非反相输入端子。 第二组放大器的反相输出端口耦合到反相输出端子，并且第二组放大器的非反相输出端口耦合到非反相输出端子。

公开(公告)号：US06683498B2

公开(公告)日：2004-01-27

申请号：US09912551

申请日：2001-07-26

申请人： Lawrence M. Burns ,  Leonard Dauphinee

发明人： Lawrence M. Burns ,  Leonard Dauphinee

IPC分类号： H03F345

CPC分类号： H03F3/211 ,  G05F3/242 ,  H03F3/72 ,  H03F2203/21191 ,  H03F2203/7227 ,  H03G3/001 ,  H03G3/3042 ,  H03G3/3068

摘要： A protection circuit for extending the dynamic range of an amplifier circuit is described. Off-chip impedances, such as inductors, cause the output of the circuit to swing above and below the bias voltage. A protection circuit is included, either on-chip or off-chip, to protect the integrated circuit components if there is a fault condition in either of the off-chip impedances.

摘要翻译： 描述了用于扩展放大器电路的动态范围的保护电路。 诸如电感器之类的片外阻抗导致电路的输出在偏置电压之上和之下摆动。 包括片内或片外保护电路，以保护集成电路组件，如果在片外阻抗中存在故障条件。

公开(公告)号：US06215355B1

公开(公告)日：2001-04-10

申请号：US09416865

申请日：1999-10-13

申请人： Ronald A. Meck ,  Earl W. McCune ,  Lawrence M. Burns

发明人： Ronald A. Meck ,  Earl W. McCune ,  Lawrence M. Burns

IPC分类号： H03F114

CPC分类号： H03G1/0023 ,  H03F3/604 ,  H03F3/72 ,  H03F2203/7209 ,  H03F2203/7221

摘要： The present invention, generally speaking, provides an improved power amplifier that minimizes impedance changes as the power amplifier changes from one operational state to another. In an exemplary embodiment, the present power amplifier is based on the well-known cascode amplifier. In a cascode amplifier, a first transistor operates in the common-source (common emitter) configuration to convert the input signal voltage (or current) into an amplified current, and a second transistor operates in the common-gate (common-base) configuration to convert the output current from the first transistor into an output voltage.

摘要翻译： 一般而言，本发明提供了一种改进的功率放大器，其在功率放大器从一个操作状态变为另一个操作状态时使阻抗变化最小化。 在示例性实施例中，本功率放大器基于公知的共源共栅放大器。 在共源共栅放大器中，第一晶体管以共源（公共发射极）配置工作，以将输入信号电压（或电流）转换为放大电流，并且第二晶体管以共栅（公共基极）配置 以将来自第一晶体管的输出电流转换为输出电压。

公开(公告)号：US5994998A

公开(公告)日：1999-11-30

申请号：US865016

申请日：1997-05-29

申请人： David A. Fisher ,  Lawrence M. Burns ,  Stephen E. Muther

发明人： David A. Fisher ,  Lawrence M. Burns ,  Stephen E. Muther

IPC分类号： H04B3/54 ,  H04L12/10 ,  H04B1/00 ,  G08C19/00

CPC分类号： H04L12/10 ,  H04B3/542 ,  H04B2203/5437 ,  H04B2203/5441 ,  H04B2203/5445 ,  H04B2203/547 ,  H04B2203/5483 ,  H04B2203/5491 ,  Y10T307/832

摘要： Electrical supply current, sufficient to power a wireless access point, is transmitted concurrently with a network data signal across a transmission line. A power and data coupler couples the network data signal and the power signal, received through a data input and a power input respectively, and transmits the coupled signal, to a distance of three meters or more, over the transmission line to a power and data decoupler. The power and data decoupler separates the power signal from the network data signal and supplies those signals to a power output port and a data output port, respectively, for use by a wireless access node. The power signal may be modulated at a low frequency relative to the frequency of the data signal, and the network data signal has a data transmission rate of one megabit/second or higher.

公开(公告)号：US5721503A

公开(公告)日：1998-02-24

申请号：US329565

申请日：1994-10-26

申请人： Lawrence M. Burns ,  William E. Stanchina

发明人： Lawrence M. Burns ,  William E. Stanchina

IPC分类号： H03K3/315 ,  H03K19/21 ,  H03M1/36 ,  H03K5/24

CPC分类号： B82Y10/00 ,  H03K19/212 ,  H03K3/315 ,  H03M1/365

摘要： The number of input latching comparators in a flash analog-to-digital converter is significantly reduced by merging the input latching function into exclusive OR gates used in the converter's decoding section. A latching exclusive OR gate used for this purpose employs resonant tunneling diodes as the latching devices, with hysteresis and impedance elements connected to ensure that the gate latches in a logic state that corresponds to the input analog signal. The latching logic gates operate in a current mode, enabling updated logic states to be latched in response to a periodic clock signal.

公开(公告)号：US5313171A

公开(公告)日：1994-05-17

申请号：US973500

申请日：1992-11-09

申请人： Lawrence M. Burns ,  Robert Tso

发明人： Lawrence M. Burns ,  Robert Tso

IPC分类号： H03F1/32 ,  H03F3/45

CPC分类号： H03F1/32 ,  H03F1/3211

摘要： A high speed, low distortion amplifier is implemented with all npn transistors by providing a correction circuit that responds to changes in the amplifier's input voltage by substantially reducing current variations in the input stage. This is accomplished with the use of a current source resistor for the second branch of the differential input stage, together with a correction circuit that diverts a portion of the resistor's current away from the input stage's second branch. The diverted current varies negatively with the input voltage, and thus compensates for input stage current variations that would result in the absence of the correction circuit. A differential amplifier with one branch biased in response to the input voltage and the other branch held at a constant bias is preferably used to establish the correction current. The invention is applicable to open loop amplifiers, fed forward closed loop amplifiers and bootstrapped closed loop amplifiers.

摘要翻译： 通过提供一个校正电路来实现所有npn晶体管的高速，低失真放大器，该校正电路通过显着减小输入级中的电流变化来响应放大器输入电压的变化。 这是通过使用用于差分输入级的第二分支的电流源电阻器以及将电阻器的电流的一部分转移离开输入级的第二分支的校正电路来实现的。 转向电流随着输入电压的变化而变化，从而补偿输入级电流变化，从而导致不存在校正电路。 优选地使用具有响应于输入电压偏置的一个分支和保持在恒定偏压的另一个分支的差分放大器来建立校正电流。 本发明适用于开环放大器，前馈闭环放大器和自举闭环放大器。