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91. 发明申请

US20060291265A1 Memory cell driver circuits 有权
标题翻译：存储单元驱动电路
公开(公告)号：US20060291265A1
公开(公告)日：2006-12-28
申请号：US11169106
申请日：2005-06-27
申请人： Gerhard Schrom , Fabrice Paillet , Tanay Karnik , Dinesh Somasekhar , Yibin Ye , Ali Keshavarzi , Muhammad Khellah , Vivek De
发明人： Gerhard Schrom , Fabrice Paillet , Tanay Karnik , Dinesh Somasekhar , Yibin Ye , Ali Keshavarzi , Muhammad Khellah , Vivek De
IPC分类号： G11C17/00
CPC分类号： G11C17/18
摘要： A system includes a pull-up circuit to program a memory cell. The pull-up circuit may include a level shifter to receive a control signal, a supply voltage, and one or more of a plurality of rail voltages, each of the plurality of rail voltages substantially equal to a respective integer multiple of the supply voltage, and to generate a second control signal, and a cascode stage. The cascode stage may include a plurality of transistors, a gate voltage of each of the plurality of transistors to be controlled at least in part by a respective one of the second control signal, the supply voltage, and at least one of the plurality of rail voltages, and an output node to provide a cell programming signal.
摘要翻译：系统包括用于对存储器单元进行编程的上拉电路。上拉电路可以包括电平移位器以接收控制信号，电源电压以及多个轨道电压中的一个或多个，多个轨道电压中的每一个基本上等于电源电压的相应整数倍，并产生第二控制信号和共源共栅级。共源共栅级可以包括多个晶体管，多个晶体管中的每一个的栅极电压至少部分地由第二控制信号，电源电压和多个轨道中的至少一个轨道电压和输出节点以提供单元编程信号。

92. 发明授权

US06849909B1 Method and apparatus for weak inversion mode MOS decoupling capacitor 失效
标题翻译：弱反转模式MOS去耦电容器的方法和装置
公开(公告)号：US06849909B1
公开(公告)日：2005-02-01
申请号：US09677698
申请日：2000-09-28
申请人： Rajendran Nair , Siva G. Narendra , Tanay Karnik , Vivek K. De
发明人： Rajendran Nair , Siva G. Narendra , Tanay Karnik , Vivek K. De
IPC分类号： H01L27/08 , H01L31/119 , H01L29/088 , H01L29/90
CPC分类号： H01L27/0811 , Y10S257/901
摘要： A method and apparatus for providing a weak inversion mode metal-oxide-semiconductor (MOS) decoupling capacitor is described. In one embodiment, an enhancement-mode p-channel MOS (PMOS) transistor is constructed with a gate material whose work function differs from that commonly used. In one exemplary embodiment, platinum silicate (PtSi) is used. In alternate embodiments, the threshold voltage of the PMOS transistor may be changed by modifying the dopant levels of the substrate. In either embodiment the flat band magnitude of the transistor is shifted by the change in materials used to construct the transistor. When such a transistor is connected with the gate lead connected to the positive supply voltage and the other leads connected to the negative (ground) supply voltage, an improved decoupling capacitor results.
摘要翻译：描述了用于提供弱反型模式金属氧化物半导体（MOS）去耦电容器的方法和装置。在一个实施例中，增强型p沟道MOS（PMOS）晶体管由其功能与常用功能不同的栅极材料构成。在一个示例性实施方案中，使用铂硅酸盐（PtSi）。在替代实施例中，可以通过修改衬底的掺杂剂水平来改变PMOS晶体管的阈值电压。在任一实施例中，晶体管的平带幅度偏移用于构造晶体管的材料的变化。当这种晶体管与连接到正电源电压的栅极引线连接，而其他引线连接到负（接地）电源电压时，会产生改进的去耦电容。

93. 发明授权

US06924510B2 Silicon and silicon/germanium light-emitting device, methods and systems 失效
标题翻译：硅和硅/锗发光器件，方法和系统
公开(公告)号：US06924510B2
公开(公告)日：2005-08-02
申请号：US10140255
申请日：2002-05-06
申请人： Donald S. Gardner , Tanay Karnik , Jianping Xu , Shekhar Y. Borkar
发明人： Donald S. Gardner , Tanay Karnik , Jianping Xu , Shekhar Y. Borkar
IPC分类号： G02B6/12 , G02B6/122 , G02B6/13 , G02B6/138 , G02B6/42 , G02B6/43 , H01L31/173 , H01L33/00 , H01L33/34 , H01L29/26
CPC分类号： H01L33/34 , G02B6/12004 , G02B6/1221 , G02B6/13 , G02B6/138 , G02B6/42 , G02B6/4214 , G02B6/4228 , G02B6/43 , G02B2006/12121 , H01L31/173
摘要： A light-emitting device and optical communication system based on the light-emitting device is disclosed. The light-emitting device is formed in a float-zone substrate. The light-emitting device includes on the substrate lower surface a reflective layer and on the upper surface spaced apart doped regions. The portion of the upper surface between the doped regions is textured and optionally covered with an antireflection coating to enhance light emission. The light-emitting device can operate as a laser or as a light-emitting diode, depending on the reflectivities of the antireflection coating and the reflective layer.
摘要翻译：公开了一种基于发光装置的发光装置和光通信系统。发光装置形成在浮区衬底中。发光装置在基板下表面上包括反射层，并且在上表面上包括间隔开的掺杂区域。掺杂区域之间的上表面的部分被纹理化并且任选地被抗反射涂层覆盖以增强发光。取决于抗反射涂层和反射层的反射率，发光器件可以作为激光器或发光二极管工作。

94. 发明申请

US20110268457A1 METHOD AND APPARATUS FOR OPTICAL SIGNALING 有权
标题翻译：光信号的方法和装置
公开(公告)号：US20110268457A1
公开(公告)日：2011-11-03
申请号：US13183178
申请日：2011-07-14
申请人： Jianping Xu , Fabrice Paillet , Tanay Karnik , Donald S. Gardner
发明人： Jianping Xu , Fabrice Paillet , Tanay Karnik , Donald S. Gardner
IPC分类号： H04B10/00 , H04B10/06 , H04B10/04
CPC分类号： H03F1/083 , H03F1/342 , H03F3/082 , H03F3/265
摘要： A method and apparatus for optical signaling. In one embodiment, a laser driver converts a digital voltage sequence to a current signal having a bias mode adjustable by a bias control and a modulation mode adjustable by a modulation control. A laser generates an optical signal responsive to the current signal of the laser driver. In one embodiment, a photo-detector receives an optical signal and generates a single ended current signal. A transimpedance amplifier circuit converts the single ended current signal to a differential voltage signal. A clock recovery circuit generates an aligned clock signal and a sampler circuit uses the aligned clock signal to retrieve a digital voltage sequence.
摘要翻译：一种用于光信令的方法和装置。在一个实施例中，激光驱动器将数字电压序列转换为具有可通过偏置控制调节的偏置模式的电流信号和通过调制控制可调节的调制模式。激光器响应于激光驱动器的当前信号产生光信号。在一个实施例中，光电检测器接收光信号并产生单端电流信号。跨阻放大器电路将单端电流信号转换为差分电压信号。时钟恢复电路产生对准的时钟信号，并且采样器电路使用对准的时钟信号来取回数字电压序列。

95. 发明授权

US07991302B2 Method and apparatus for optical signaling 有权
标题翻译：光信令的方法和装置
公开(公告)号：US07991302B2
公开(公告)日：2011-08-02
申请号：US10816026
申请日：2004-03-31
申请人： Jianping Xu , Fabrice Paillet , Tanay Karnik , Donald S. Gardner
发明人： Jianping Xu , Fabrice Paillet , Tanay Karnik , Donald S. Gardner
IPC分类号： H04B10/06 , H01S3/00
CPC分类号： H03F1/083 , H03F1/342 , H03F3/082 , H03F3/265
摘要： A method and apparatus for optical signaling. In one embodiment, a laser driver converts a digital voltage sequence to a current signal having a bias mode adjustable by a bias control and a modulation mode adjustable by a modulation control. A laser generates an optical signal responsive to the current signal of the laser driver. In one embodiment, a photo-detector receives an optical signal and generates a single ended current signal. A transimpedance amplifier circuit converts the single ended current signal to a differential voltage signal. A clock recovery circuit generates an aligned clock signal and a sampler circuit uses the aligned clock signal to retrieve a digital voltage sequence.
摘要翻译：一种用于光信令的方法和装置。在一个实施例中，激光驱动器将数字电压序列转换为具有可通过偏置控制调节的偏置模式的电流信号和通过调制控制可调节的调制模式。激光器响应于激光驱动器的当前信号产生光信号。在一个实施例中，光电检测器接收光信号并产生单端电流信号。跨阻放大器电路将单端电流信号转换为差分电压信号。时钟恢复电路产生对准的时钟信号，并且采样器电路使用对准的时钟信号来取回数字电压序列。

96. 发明授权

US07536107B2 Optical offset signal cancellation for optical receiver 有权
标题翻译：光接收机的光偏移信号消除
公开(公告)号：US07536107B2
公开(公告)日：2009-05-19
申请号：US11026632
申请日：2004-12-30
申请人： Fabrice Paillet , Tanay Karnik , Jianping Xu , Donald S. Gardner
发明人： Fabrice Paillet , Tanay Karnik , Jianping Xu , Donald S. Gardner
IPC分类号： H04B10/00
CPC分类号： H04B10/66
摘要： A laser driver for high speed interconnections may convert a digital signal to a current train of a bias mode to represent logical zero and of a modulation mode to represent logical one. An optical signal thus produced may include an optical offset. An optical receiver may include a photo-detector to receive the optical signal and generate a current signal, which includes a corresponding current offset. A first amplifier stage converts the current signal to a voltage signal and a second amplifier stage generates a digital output from the voltage signal. One or more low-pass filters may be used to filter the digital output and generate a filtered offset signal for a differential amplifier to generate an offset cancellation signal. The offset cancellation signal may be provided to offset cancellation circuitry to remove the current offset from the current signal generated by the photo-detector.
摘要翻译：用于高速互连的激光驱动器可以将数字信号转换为偏置模式的当前列，以表示逻辑零和调制模式以表示逻辑1。如此产生的光信号可以包括光偏移。光接收器可以包括光检测器，用于接收光信号并产生电流信号，其包括对应的电流偏移。第一放大器级将电流信号转换为电压信号，第二放大器级从电压信号产生数字输出。可以使用一个或多个低通滤波器来对数字输出进行滤波，并产生用于差分放大器的滤波偏移信号以产生偏移消除信号。可以将偏移消除信号提供给偏移消除电路，以从光电检测器产生的电流信号中去除电流偏移。

97. 发明授权

US07265607B1 Voltage regulator 有权
标题翻译：电压调节器
公开(公告)号：US07265607B1
公开(公告)日：2007-09-04
申请号：US10930200
申请日：2004-08-31
申请人： Saravanan Rajapandian , Peter Hazucha , Tanay Karnik
发明人： Saravanan Rajapandian , Peter Hazucha , Tanay Karnik
IPC分类号： G05F1/10
CPC分类号： G05F1/56
摘要： A device comprises an active-pull-up stage and an active-pull-down stage. The device receives at least one reference voltage and provides an regulated output voltage to at least one load. The active-pull-up and active-pull-down stages are adapted to source or sink a current delivered to or received from the at least one load to regulate the output voltage provided to the at least one load. Other embodiments and methods are also claimed and described.
摘要翻译：一种装置包括有源上拉电平和有源下拉电平。该装置接收至少一个参考电压，并向至少一个负载提供稳定的输出电压。有源上拉和有源下拉级适于源或者传送传送到或从所述至少一个负载接收的电流以调节提供给所述至少一个负载的输出电压。还要求和描述其他实施例和方法。

98. 发明授权

US07212021B2 Manufacturing integrated circuits and testing on-die power supplies using distributed programmable digital current sinks 有权
标题翻译：使用分布式可编程数字电流源制造集成电路和片上电源测试
公开(公告)号：US07212021B2
公开(公告)日：2007-05-01
申请号：US10097136
申请日：2002-03-12
申请人： Tanay Karnik , Peter Hazucha
发明人： Tanay Karnik , Peter Hazucha
IPC分类号： G01R31/26
CPC分类号： G01R31/31721 , G01R31/2839
摘要： A method for designing and testing on-die power supply, power distribution, and noise suppression techniques for integrated circuits such as microprocessors is described. A network of time varying loads is distributed along the power supply grid to facilitate testing of new power supplies and grids and noise suppression techniques before design of the chip is completed. Several programmable current sinks are described for presenting loads according to a preferred test-waveform current. Transient, including droop detection, and static testing is easily performed using the described methods and circuitry.
摘要翻译：描述了一种用于集成电路（如微处理器）的片上电源，配电和噪声抑制技术的设计和测试方法。时变负载网络沿着电源网格分布，以便在芯片设计完成之前便于测试新的电源和网格以及噪声抑制技术。描述了几个可编程电流吸收器，用于根据优选的测试波形电流呈现负载。使用所描述的方法和电路容易地执行瞬态，包括下垂检测和静态测试。

99. 发明授权

US06617890B1 Measuring power supply stability 有权
标题翻译：测量电源稳定性
公开(公告)号：US06617890B1
公开(公告)日：2003-09-09
申请号：US10104393
申请日：2002-03-22
申请人： Tsung-Hao Chen , Peter Hazucha , Atila Alvandpour , Tanay Karnik , Chung-Ping Chen
发明人： Tsung-Hao Chen , Peter Hazucha , Atila Alvandpour , Tanay Karnik , Chung-Ping Chen
IPC分类号： H03K5153
CPC分类号： G01R19/16538 , G06F1/28 , H03K5/08 , H03K5/153
摘要： A system for measuring the stability of a power signal from a power supply includes a threshold violation detector. The threshold violation detector includes a comparator and an indicator. The comparator has a power signal input, a threshold signal input, and a comparison result output, and is configured to compare the power signal on the power signal input with a threshold on the threshold signal input to present a comparison result signal on the comparison result output. The indicator has a threshold violation output and a comparison input that receives the comparison result signal from the comparator. The indicator presents a threshold violation signal on the threshold violation output when the comparison result signal indicates that the power signal has violated the threshold.
摘要翻译：用于测量来自电源的功率信号的稳定性的系统包括阈值违规检测器。阈值违规检测器包括比较器和指示器。比较器具有功率信号输入，阈值信号输入和比较结果输出，并且被配置为将功率信号输入上的功率信号与阈值信号输入上的阈值进行比较，以在比较结果上呈现比较结果信号输出。指示器具有阈值违反输出和比较输入，其从比较器接收比较结果信号。当比较结果信号指示电源信号已经违反阈值时，指示器在阈值违反输出上呈现阈值违反信号。

100. 发明授权

US08710869B2 High-speed comparator with asymmetric frequency response 有权
标题翻译：具有不对称频率响应的高速比较器
公开(公告)号：US08710869B2
公开(公告)日：2014-04-29
申请号：US10422238
申请日：2003-04-23
申请人： Peter Hazucha , Tsung-Hao Chen , Tanay Karnik , Chung-Ping Chen
发明人： Peter Hazucha , Tsung-Hao Chen , Tanay Karnik , Chung-Ping Chen
IPC分类号： H03K5/22 , H03K5/24
CPC分类号： H03K5/2481 , H03F3/45183 , H03F2203/45544 , H03F2203/45646
摘要： A comparator to provide an output voltage indicative of comparing an input voltage with a reference voltage, where the comparator has an asymmetric frequency response. With an asymmetric frequency response, the bandwidth of the input voltage may be greater than the bandwidth of the reference voltage. A comparator includes a differential pair of transistors coupled to a current mirror and biased by a current source, where in one embodiment, a capacitor shunts the sources of the differential pair. In a second embodiment, a capacitor couples the input voltage port to the gates of the current mirror transistors. In a third embodiment, the comparator utilizes both capacitors of the first and second embodiments.
摘要翻译：比较器，用于提供指示将输入电压与参考电压进行比较的输出电压，其中比较器具有不对称的频率响应。对于非对称频率响应，输入电压的带宽可能大于参考电压的带宽。比较器包括耦合到电流镜并由电流源偏置的晶体管的差分对，其中在一个实施例中，电容器分流差分对的源极。在第二实施例中，电容器将输入电压端口耦合到电流镜晶体管的栅极。在第三实施例中，比较器利用了第一和第二实施例的两个电容器。

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