公开(公告)号：US20100277235A1

公开(公告)日：2010-11-04

申请号：US12836923

申请日：2010-07-15

申请人： Leonard Dauphinee ,  Lawrence M. Burns

发明人： Leonard Dauphinee ,  Lawrence M. Burns

IPC分类号： H03G3/30

CPC分类号： H01L22/20 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H01L2924/0002 ,  H03F3/211 ,  H03G3/3036 ,  H03G3/3052 ,  H03G2201/307 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102 ,  H01L2924/00

摘要： A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds.

摘要翻译： 可变增益放大器（VGA）根据增益放大输入信号，以产生放大信号。 检测器模块检测指示放大信号的功率的功率。 比较器模块将检测到的功率与高阈值和低阈值中间的高阈值，低阈值和目标阈值进行比较。 当比较器模块指示检测到的功率不在高阈值和低阈值之间时，控制器模块改变VGA的增益以驱动检测到的功率朝向中间阈值的方向。

公开(公告)号：US07375540B2

公开(公告)日：2008-05-20

申请号：US10963639

申请日：2004-10-14

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： G01R31/02 ,  G01R31/00

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

摘要： A method and system for monitoring and compensating the performance of an operational circuit is provided. The system includes one or more integrated circuit chips and a controller. Each integrated circuit chip includes one or more operational circuits, each operational circuit having at least one controllable circuit parameter. Each integrated circuit chip also includes a process monitor module at least partially constructed thereon. The controller is coupled to each process monitor module and to each operational circuit. The controller includes logic for evaluating the performance of an operational circuit based on data obtained from process monitor module and operational circuit related data stored in a memory. Based on the evaluation, the controller determines whether any deviations from desired or optimal performance of the circuit exist. If deviations exist, the controller generates a control signal to initiate adjustments to the operational circuit to compensate for the deviations.

摘要翻译： 提供了一种用于监测和补偿操作电路的性能的方法和系统。 该系统包括一个或多个集成电路芯片和控制器。 每个集成电路芯片包括一个或多个操作电路，每个操作电路具有至少一个可控电路参数。 每个集成电路芯片还包括至少部分地构建在其上的过程监控模块。 控制器耦合到每个过程监控模块和每个操作电路。 控制器包括用于基于从存储在存储器中的过程监视模块和操作电路相关数据获得的数据来评估操作电路的性能的逻辑。 基于评估，控制器确定是否存在与电路的期望或最佳性能的任何偏差。 如果存在偏差，则控制器产生控制信号以启动对运算电路的调整以补偿偏差。

公开(公告)号：US07053707B2

公开(公告)日：2006-05-30

申请号：US11028331

申请日：2005-01-04

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

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

IPC分类号： 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.

公开(公告)号：US06982602B2

公开(公告)日：2006-01-03

申请号：US10679269

申请日：2003-10-07

申请人： Lawrence M. Burns

发明人： Lawrence M. Burns

IPC分类号： H03F3/04

CPC分类号： H03G3/001 ,  G05F3/242 ,  G05F3/262 ,  H03G3/3042

摘要： A low voltage current mirror circuit (also referred to as a bias circuit) for establishing a plurality of bias voltages from an input current supplied to an input terminal of the circuit includes an input stage, a current stage connected to the input stage, a feedback stage connected to the current stage, a reference bias stage connected to the feedback stage and the current stage. The circuit establishes first and second bias voltages suitable for biasing current sources of a first type, and third and fourth bias voltages suitable for biasing current sources of a second type complementary to the first type. The bias voltages track the input current over variations in at least one of process, temperature and power supply voltage.

公开(公告)号：US06806787B2

公开(公告)日：2004-10-19

申请号：US10395116

申请日：2003-03-25

申请人： Ramon Alejandro Gomez ,  Lawrence M. Burns ,  Alexandre Kral

发明人： Ramon Alejandro Gomez ,  Lawrence M. Burns ,  Alexandre Kral

IPC分类号： H03B508

CPC分类号： H03B5/1228 ,  H03B5/1212 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03J2200/10

摘要： A varactor folding technique reduces noise in controllable electronic oscillators through the use of a series of varactors having relatively small capacitance. A folding circuit provides control signals to the varactors in a sequential manner to provide a relatively smooth change in the total capacitance of the oscillator. Consequently, effective control of the oscillator is achieved with accompanying reductions in oscillator noise such as flicker noise.

摘要翻译： 变容二极管折叠技术通过使用具有相对较小电容的一系列变容二极管来降低可控电子振荡器中的噪声。 折叠电路以顺序方式向变容二极管提供控制信号，以提供振荡器的总电容的相对平滑的变化。 因此，随着振荡器噪声（如闪烁噪声）的减少，实现了振荡器的有效控制。

公开(公告)号：US06781461B2

公开(公告)日：2004-08-24

申请号：US10429700

申请日：2003-05-06

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： H03F345

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：US06714080B2

公开(公告)日：2004-03-30

申请号：US10288418

申请日：2002-11-06

申请人： Lawrence M. Burns

发明人： Lawrence M. Burns

IPC分类号： H03F304

CPC分类号： H03G3/001 ,  G05F3/242 ,  G05F3/262 ,  H03G3/3042

摘要： A low voltage current mirror circuit (also referred to as a bias circuit) for establishing a plurality of bias voltages from an input current supplied to an input terminal of the circuit includes an input stage, a current stage connected to the input stage, a feedback stage connected to the current stage, a reference bias stage connected to the feedback stage and the current stage. The circuit establishes first and second bias voltages suitable for biasing current sources of a first type, and third and fourth bias voltages suitable for biasing current sources of a second type complementary to the first type. The bias voltages track the input current over variations in at least one of process, temperature and power supply voltage.

公开(公告)号：US06531923B2

公开(公告)日：2003-03-11

申请号：US09897045

申请日：2001-07-03

申请人： Lawrence M. Burns

发明人： Lawrence M. Burns

IPC分类号： H03F304

CPC分类号： H03G3/001 ,  G05F3/242 ,  G05F3/262 ,  H03G3/3042

摘要： A low voltage current mirror circuit (also referred to as a bias circuit) for establishing a plurality of bias voltages from an input current supplied to an input terminal of the circuit includes an input stage, a current stage connected to the input stage, a feedback stage connected to the current stage, a reference bias stage connected to the feedback stage and the current stage. The circuit establishes first and second bias voltages suitable for biasing current sources of a first type, and third and fourth bias voltages suitable for biasing current sources of a second type complementary to the first type. The bias voltages track the input current over variations in at least one of process, temperature and power supply voltage.

公开(公告)号：US06329906B1

公开(公告)日：2001-12-11

申请号：US09675730

申请日：2000-09-29

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： H04B100

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.

摘要翻译： 足以为无线接入点供电的供电电流通过传输线与网络数据信号同时传输。 电力和数据耦合器通过数据输入和电源输入耦合网络数据信号和功率信号，并通过传输线将耦合信号传输到三米或更长的距离，以将功率和数据 解耦器 功率和数据去耦器将功率信号与网络数据信号分离，并将这些信号分别提供给功率输出端口和数据输出端口，供无线接入节点使用。 功率信号可以相对于数据信号的频率以低频进行调制，并且网络数据信号具有1兆比特或更高的数据传输速率。

公开(公告)号：US6005519A

公开(公告)日：1999-12-21

申请号：US707558

申请日：1996-09-04

申请人： Lawrence M. Burns

发明人： Lawrence M. Burns

IPC分类号： H01Q1/38 ,  H01Q5/00 ,  H01Q5/364 ,  H01Q9/04

CPC分类号： H01Q9/0442 ,  H01Q1/38 ,  H01Q5/364

摘要： A broad band tunable microstrip antenna is realized. A substrate layer with a high dielectric constant is placed between a radiating element and a ground plane layer. The electrically conductive radiating element is fabricated on the substrate layer such that a main patch surrounded by a number of individual tuning patches connected to the main patch and to each other are provided. During the tuning process, the effective length and effective width can be selectively adjusted by disconnecting individual tuning patches. In addition to broadening the bandwidth of the microstrip antenna, the optimal feed point can be selected. In other embodiments, the individual tuning patches are initially disconnected from each other and the main patch. During the tuning process, the individual tuning patches are selectively connected or soldered to the main patch. Furthermore, tuning can also be accomplished by connecting or disconnecting individual tuning patches to obtain the desired dimensions of the radiating element. An array of tunable microstrip antennas is also realized. With appropriate coupling to a transmitter/receiver via a feed point, the tunable microstrip antenna, or an array of tunable microstrip antennas, can be used for transmitting and receiving electromagnetic signals, particularly in wireless computer network applications.

摘要翻译： 实现了宽带可调微带天线。 具有高介电常数的衬底层放置在辐射元件和接地层之间。 导电辐射元件制造在衬底层上，使得由连接到主贴片和彼此的多个单独调谐片包围的主贴片被提供。 在调谐过程中，有效长度和有效宽度可以通过断开各个调谐片来选择性地调节。 除了扩大微带天线的带宽外，还可以选择最佳的馈电点。 在其他实施例中，各个调谐片最初彼此断开并且主贴片。 在调谐过程中，各个调谐片选择性地连接或焊接到主贴片。 此外，也可以通过连接或断开各个调谐贴片来实现调谐，以获得辐射元件的期望尺寸。 还实现了可调谐微带天线阵列。 通过馈源适当地耦合到发射机/接收机，可调微带天线或可调谐微带天线阵列可用于发射和接收电磁信号，特别是在无线计算机网络应用中。