专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07199654B1 Multi-stage amplifier with switching circuitry 有权
标题翻译：带开关电路的多级放大器
公开(公告)号：US07199654B1
公开(公告)日：2007-04-03
申请号：US11155296
申请日：2005-06-17
申请人： Jaifu Luo , Rajagopal Sundararaman , Mehmet Ali Tan
发明人： Jaifu Luo , Rajagopal Sundararaman , Mehmet Ali Tan
IPC分类号： H03F1/02
CPC分类号： H03F3/005
摘要： Disclosed are a multi-stage amplifier circuit, a method of operating a multi-stage amplifier circuit, and a device with the multi-stage amplifier circuit. The amplifier circuit technology includes an operational amplifier shared among multiple stages and switching circuitry. The various switching circuitry switches among elements to provide different input signals and different feedback to the shared operational amplifier at the different stages of operation of the amplifier circuit. The various switching circuitry also stores and discharges charge at one or more operational amplifier inputs.
摘要翻译：公开了多级放大器电路，操作多级放大器电路的方法以及具有多级放大器电路的器件。放大器电路技术包括在多级和开关电路之间共享的运算放大器。各种开关电路在元件之间切换，以在放大器电路的不同操作阶段提供不同的输入信号和对共享运算放大器的不同反馈。各种开关电路还在一个或多个运算放大器输入端存储和放电电荷。

2. 发明授权

US06828831B1 Circuit for controlling field effect device transconductance 失效
标题翻译：用于控制场效应器件跨导的电路
公开(公告)号：US06828831B1
公开(公告)日：2004-12-07
申请号：US10452089
申请日：2003-05-30
申请人： Mehmet Ali Tan , Geert Adolf DeVeirman
发明人： Mehmet Ali Tan , Geert Adolf DeVeirman
IPC分类号： H02M1100
CPC分类号： H03G1/0029 , H03B5/04 , H03B2200/0058 , H03F1/301 , H03F1/342 , H03F3/345 , H03F2200/78
摘要： A transconductance control circuit includes a master device having first and second field effect devices coupled to respective first and second current sources, a reference device coupled to a third current source, and comparison circuitry. The comparison circuitry includes at least first, second and third inputs and at least one output, with the first input configured to receive a reference signal associated with the reference device, the second and third inputs coupled to respective terminals of the first and second field effect devices, and the output coupled to current control inputs of one or more of the current sources. The transconductance control circuit provides a feedback control arrangement in which, for example, the comparison circuitry output is utilized to adjust one or more of the current sources such that a difference signal Vg between voltages at the respective terminals of the first and second field effect devices converges to a reference signal VR. As a result, the transconductance gm of the first field effect device converges to the conductance of the reference device.
摘要翻译：跨导控制电路包括具有耦合到相应的第一和第二电流源的第一和第二场效应器件，耦合到第三电流源的参考器件和比较电路的主器件。比较电路包括至少第一，第二和第三输入和至少一个输出，其中第一输入被配置为接收与参考装置相关联的参考信号，第二和第三输入耦合到第一和第二场效应的相应终端器件，以及耦合到一个或多个电流源的电流控制输入的输出。跨导控制电路提供反馈控制装置，其中例如使用比较电路输出来调整一个或多个电流源，使得第一和第二场效应装置的各个端子处的电压之间的差信号Vg 收敛到参考信号VR。结果，第一场效应器件的跨导gm收敛于参考器件的电导。

3. 发明授权

US6011770A Method and apparatus for high-order bandpass filter with linearly adjustable bandwidth 失效
标题翻译：具有线性可调带宽的高阶带通滤波器的方法和装置
公开(公告)号：US6011770A
公开(公告)日：2000-01-04
申请号：US988158
申请日：1997-12-10
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： G11B20/10 , H03G5/28 , H03J3/16 , G11B7/00
CPC分类号： H03J3/16 , G11B20/10 , H03G5/28
摘要： A method and apparatus for linearly adjusting the bandwidth of a high-order bandpass filter. A high-order bandpass filter is formed by cascading together two or more low-order bandpass filters. The bandwidths and center frequencies of each individual low-order bandpass filter is adjusted. The center frequency of some low-order bandpass filters are adjusted so as to achieve linear adjustment of the bandwidth of the high-order bandpass filter.
摘要翻译：一种线性调整高阶带通滤波器带宽的方法和装置。通过将两个或多个低阶带通滤波器级联在一起形成高阶带通滤波器。调整各个低阶带通滤波器的带宽和中心频率。调整一些低阶带通滤波器的中心频率，以实现高阶带通滤波器带宽的线性调整。

4. 发明授权

US08699555B2 Adaptive equalizer 有权
标题翻译：自适应均衡器
公开(公告)号：US08699555B2
公开(公告)日：2014-04-15
申请号：US13309836
申请日：2011-12-02
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： H03K5/24 , H03K5/22 , H04L25/03 , H04B3/14
CPC分类号： H04L25/03012 , H04L25/03159 , H04L25/03878 , H04L2025/03535 , H04L2025/03566
摘要： An adaptive equalizer circuit, set forth by way of example and not limitation, includes a plurality of paths receiving an input signal. One or more equalizers are each provided on one of the paths and are operative to equalize signal amplitude. An equalizer selector receives the input signal and is operative to output a selection signal based on higher-frequency content and lower-frequency content of the input signal. The selection signal is operative to select one of the paths to output an output signal that is based on the input signal.
摘要翻译：通过示例而非限制的方式提出的自适应均衡器电路包括接收输入信号的多个路径。一个或多个均衡器分别设置在一个路径上，并且可操作以均衡信号幅度。均衡器选择器接收输入信号并且可操作以基于输入信号的较高频率内容和较低频率内容输出选择信号。选择信号可操作以选择一个路径以输出基于输入信号的输出信号。

5. 发明授权

US06806740B1 Reduced complexity linear phase detector 失效
标题翻译：降低复杂度线性相位检测器
公开(公告)号：US06806740B1
公开(公告)日：2004-10-19
申请号：US10452661
申请日：2003-05-30
申请人： Mehmet Ali Tan , Daniel Chan
发明人： Mehmet Ali Tan , Daniel Chan
IPC分类号： H03D900
CPC分类号： H03D13/004
摘要： A linear phase detector includes first, second and third latches connected in series, each of the latches having a data input, a data output and a clock input, and further includes reference signal generation circuitry and error signal generation circuitry. The reference signal generation circuitry has at least a first input coupled to the data output of the second latch and a second input coupled to the data output of the third latch. The error signal generation circuitry has at least a first input coupled to the data input of the first latch and a second input coupled to the data output of the second latch, and is configured to generate an output that is indicative, relative to the reference signal, of the phase error of a clock signal. The linear phase detector is preferably configured such that a first version of the clock signal is applied to the clock inputs of the first and third latches, and a second version of the clock signal is applied to the clock input of the second latch, the first and second versions being complementary relative to one another. The linear phase detector in an illustrative embodiment exhibits a linearity substantially equivalent to that associated with a conventional four-latch Hogge detector.
摘要翻译：线性相位检测器包括串联连接的第一，第二和第三锁存器，每个锁存器具有数据输入，数据输出和时钟输入，并且还包括参考信号产生电路和误差信号产生电路。参考信号产生电路至少具有耦合到第二锁存器的数据输出端的第一输入端和耦合到第三锁存器的数据输出端的第二输入端。误差信号产生电路至少具有耦合到第一锁存器的数据输入端的第一输入端和耦合到第二锁存器的数据输出端的第二输入端，并且被配置为产生相对于参考信号指示的输出端的时钟信号的相位误差。线性相位检测器优选地被配置为使得第一版本的时钟信号被施加到第一和第三锁存器的时钟输入，并且第二版本的时钟信号被施加到第二锁存器的时钟输入端而第二个版本相互相互补充。在说明性实施例中的线性相位检测器呈现出基本上等同于与常规四锁定霍奇检测器相关联的线性相位的线性度。

6. 发明授权

US06937028B2 Resistor value detection circuit 有权
标题翻译：电阻值检测电路
公开(公告)号：US06937028B2
公开(公告)日：2005-08-30
申请号：US10452329
申请日：2003-05-30
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： G01R27/14 , G01R31/27 , H03L7/087 , H03L7/099 , G01R35/00 , G01R27/08
CPC分类号： H03L7/087 , G01R27/14 , G01R31/275 , H03L7/099
摘要： A resistor detection circuit configurable for coupling to an external resistor of an integrated circuit or other type of circuit includes at least one internal resistor, and comparison circuitry associated with the internal resistor. The comparison circuitry is operative to generate, based at least in part on a value of the external resistor, an output indicative of a value of the internal resistor. The output generated by the comparison circuitry may comprise an encoded digital output signal representative of the value of the internal resistor.
摘要翻译：可配置为耦合到集成电路或其他类型电路的外部电阻器的电阻器检测电路包括至少一个内部电阻器和与内部电阻器相关联的比较电路。比较电路至少部分地基于外部电阻器的值产生指示内部电阻器的值的输出。由比较电路产生的输出可以包括表示内部电阻器的值的编码数字输出信号。

7. 发明授权

US06288611B1 Apparatus and method to trim a programmable low-frequency monolithic high-pass filter 有权
标题翻译：可编程低频单片高通滤波器的装置和方法
公开(公告)号：US06288611B1
公开(公告)日：2001-09-11
申请号：US09398592
申请日：1999-09-17
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： H03G320
CPC分类号： H03G5/12 , H03G1/0088 , H03H11/245
摘要： A high-pass filter has a variable resistance which can be varied by a trimming signal and a programming signal. The variable resistance has a common resistance which is controlled by the trimming signal or the programming signal through a common control line.
摘要翻译：高通滤波器具有可通过修整信号和编程信号而变化的可变电阻。可变电阻具有由修整信号或编程信号通过公共控制线控制的公共电阻。

8. 发明授权

US6127829A Method and apparatus for the efficient test of the center frequency of bandpass filters 失效
标题翻译：用于有效测试带通滤波器中心频率的方法和装置
公开(公告)号：US6127829A
公开(公告)日：2000-10-03
申请号：US988174
申请日：1997-12-10
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： G01R23/02 , G01R27/28
CPC分类号： G01R23/02 , G01R27/28
摘要： A method and apparatus for determining the center frequency of a bandpass filter. The center frequency of a bandpass filter is determined by applying a bias voltage to a bandpass filter circuit receiving a pair of differential input voltages and producing a pair of differential output voltages. The differential output voltages are modified to exhibit a notchband magnitude characteristic. A minimum value of the differential output voltages exhibiting the notchband characteristic over a predetermined range of frequencies is determined and corresponds to the center frequency of the bandpass filter.
摘要翻译：一种用于确定带通滤波器的中心频率的方法和装置。通过将偏置电压施加到接收一对差分输入电压的带通滤波器电路并产生一对差分输出电压来确定带通滤波器的中心频率。差分输出电压被修改为具有陷波带幅度特性。确定在预定频率范围内表现出陷波带特性的差分输出电压的最小值，并对应于带通滤波器的中心频率。

9. 发明申请

US20130142244A1 ADAPTIVE EQUALIZER 有权
标题翻译：自适应均衡器
公开(公告)号：US20130142244A1
公开(公告)日：2013-06-06
申请号：US13309836
申请日：2011-12-02
申请人： Mehmet Ali Tan
发明人： Mehmet Ali Tan
IPC分类号： H04L27/01
CPC分类号： H04L25/03012 , H04L25/03159 , H04L25/03878 , H04L2025/03535 , H04L2025/03566
摘要： An adaptive equalizer circuit, set forth by way of example and not limitation, includes a plurality of paths receiving an input signal. One or more equalizers are each provided on one of the paths and are operative to equalize signal amplitude. An equalizer selector receives the input signal and is operative to output a selection signal based on higher-frequency content and lower-frequency content of the input signal. The selection signal is operative to select one of the paths to output an output signal that is based on the input signal.
摘要翻译：通过示例而非限制的方式提出的自适应均衡器电路包括接收输入信号的多个路径。一个或多个均衡器分别设置在一个路径上，并且可操作以均衡信号幅度。均衡器选择器接收输入信号并且可操作以基于输入信号的较高频率内容和较低频率内容输出选择信号。选择信号可操作以选择一个路径以输出基于输入信号的输出信号。

10. 发明授权

US07381936B2 Self-calibrating anti-blooming circuit for CMOS image sensor having a spillover protection performance in response to a spillover condition 有权
标题翻译：用于CMOS图像传感器的自校准抗晕电路，具有响应于溢出状态的溢出保护性能
公开(公告)号：US07381936B2
公开(公告)日：2008-06-03
申请号：US10975474
申请日：2004-10-29
申请人： Mehmet Ali Tan , Jiafu Luo
发明人： Mehmet Ali Tan , Jiafu Luo
IPC分类号： H01L27/00
CPC分类号： H04N5/355 , H04N5/235 , H04N5/3592
摘要： A method and apparatus to provide blooming protection for a pixel in an array while extending dynamic range.
摘要翻译：一种在扩展动态范围的同时为阵列中的像素提供防晕保护的方法和装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式