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公开(公告)号：US07088138B2
公开(公告)日：2006-08-08
申请号：US10929412
申请日：2004-08-31
申请人： Jianping Xu , Fabrice Paillet , Tanay Karnik
发明人： Jianping Xu , Fabrice Paillet , Tanay Karnik
IPC分类号： H03K19/21
CPC分类号： H03K19/215
摘要： A CML XOR logic circuit is provided that includes a pair of pull-up transistors, a pair of current source transistors and a logic switch network coupled between the pull-up transistors and the current source transistors. The logic switch network including a plurality of transistors divided into a first branch, a second branch and a third branch. A tail current flows through the first branch, the second branch or the third branch based on at least two input signals to the plurality of transistors.
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公开(公告)号：US20060170481A1
公开(公告)日：2006-08-03
申请号：US11047442
申请日：2005-01-31
申请人： Fabrice Paillet , David Rennie , Tanay Karnik , Jianping Xu
发明人： Fabrice Paillet , David Rennie , Tanay Karnik , Jianping Xu
IPC分类号： H03B1/00
CPC分类号： H03K19/018507
摘要： In general, in one aspect, the disclosure describes an apparatus for shifting a low swing signal. The apparatus includes a first pair of transistors to receive a first input signal and a second input signal and to generate a first output signal that is a shifted version of the first input signal. The apparatus further includes a second pair of transistors to receive the first input signal and the second input signal and to generate a second output signal that is a shifted version of the second input signal.
摘要翻译： 通常，在一个方面，本公开描述了一种用于移动低挥杆信号的装置。 该装置包括第一对晶体管，用于接收第一输入信号和第二输入信号，并产生作为第一输入信号的偏移版本的第一输出信号。 该装置还包括第二对晶体管，用于接收第一输入信号和第二输入信号，并产生作为第二输入信号的移位版本的第二输出信号。
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公开(公告)号：US20060103479A1
公开(公告)日：2006-05-18
申请号：US10991976
申请日：2004-11-18
申请人： Fabrice Paillet , Tanay Karnik , Jianping Xu
发明人： Fabrice Paillet , Tanay Karnik , Jianping Xu
IPC分类号： H03K3/03
CPC分类号： H03K3/0322 , H03K5/133 , H03K2005/00208 , H03L7/0995
摘要： According to some embodiments, a circuit includes a ring oscillator delay stage. The delay stage may include a first transistor, a second transistor, and an active inductor. A gate of the first transistor may receive a first input signal, a gate of the second transistor may receive a second input signal, a source of the second transistor may be coupled to a source of the first transistor, and the active inductor may be coupled to a drain of the first transistor.
摘要翻译： 根据一些实施例，电路包括环形振荡器延迟级。 延迟级可以包括第一晶体管，第二晶体管和有源电感器。 第一晶体管的栅极可以接收第一输入信号，第二晶体管的栅极可以接收第二输入信号，第二晶体管的源极可以耦合到第一晶体管的源极，并且有源电感器可以耦合 到第一晶体管的漏极。
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公开(公告)号：US20060044010A1
公开(公告)日：2006-03-02
申请号：US10929412
申请日：2004-08-31
申请人： Jianping Xu , Fabrice Paillet , Tanay Karnik
发明人： Jianping Xu , Fabrice Paillet , Tanay Karnik
IPC分类号： H03K19/21
CPC分类号： H03K19/215
摘要： A CML XOR logic circuit is provided that includes a pair of pull-up transistors, a pair of current source transistors and a logic switch network coupled between the pull-up transistors and the current source transistors. The logic switch network including a plurality of transistors divided into a first branch, a second branch and a third branch. A tail current flows through the first branch, the second branch or the third branch based on at least two input signals to the plurality of transistors.
摘要翻译： 提供了一种CML异或逻辑电路，其包括一对上拉晶体管，一对电流源晶体管和耦合在上拉晶体管和电流源晶体管之间的逻辑开关网络。 逻辑开关网络包括分成第一分支，第二分支和第三分支的多个晶体管。 基于至少两个到多个晶体管的输入信号，尾流通过第一分支，第二分支或第三分支。
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公开(公告)号：US20050226279A1
公开(公告)日：2005-10-13
申请号：US10816321
申请日：2004-03-31
申请人： Jianping Xu , Fabrice Paillet , Tanay Karnik
发明人： Jianping Xu , Fabrice Paillet , Tanay Karnik
IPC分类号： H01S3/10 , H01S5/042 , H01S5/183 , H04B10/155
CPC分类号： H04B10/564 , H01S5/0427 , H01S5/183 , H04B10/503
摘要： One embodiment of a laser driver for high speed interconnections includes a buffered level shifter to shift the input voltage level to an appropriate level. In some embodiments the buffered level shifter may be tuned to provide a desired level shift with impedance matched to the driving load. Another embodiment converts a digital signal to a current train of a bias mode to represent logical zero and of a modulation mode to represent logical one, wherein one or both of the bias mode and modulation mode may be adjusted, for example by a programmable control circuit or by an adaptive control circuit. Some embodiments also provide circuitry for reducing overshoot of the output signal.
摘要翻译： 用于高速互连的激光驱动器的一个实施例包括用于将输入电压电平转换到适当电平的缓冲电平移位器。 在一些实施例中，缓冲电平移位器可以被调谐以提供具有与驱动负载匹配的阻抗的期望电平移位。 另一个实施例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，其中偏置模式和调制模式中的一个或两个可以例如由可编程控制电路 或通过自适应控制电路。 一些实施例还提供用于减少输出信号的过冲的电路。
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96.发明申请公开(公告)号：US20050212559A1
公开(公告)日：2005-09-29
申请号：US10808785
申请日：2004-03-24
申请人： Fabrice Paillet , David Rennie , Tanay Karnik , Jianping Xu
发明人： Fabrice Paillet , David Rennie , Tanay Karnik , Jianping Xu
CPC分类号： H03K5/08 , H03K5/151 , H03K5/2481
摘要： A circuit to provide a differential signal output in response to a single-ended signal input, the circuit allowing for a wide common-mode input signal by providing complementary amplifier structures.
摘要翻译： 响应于单端信号输入提供差分信号输出的电路，该电路通过提供互补放大器结构允许宽共模输入信号。
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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
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。
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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
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。
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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。
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公开(公告)号：US07215173B2
公开(公告)日：2007-05-08
申请号：US11047442
申请日：2005-01-31
申请人： Fabrice Paillet , David J. Rennie , Tanay Karnik , Jianping Xu
发明人： Fabrice Paillet , David J. Rennie , Tanay Karnik , Jianping Xu
IPC分类号： H03L5/00
CPC分类号： H03K19/018507
摘要： In general, in one aspect, the disclosure describes an apparatus for shifting a low swing signal. The apparatus includes a first pair of transistors to receive a first input signal and a second input signal and to generate a first output signal that is a shifted version of the first input signal. The apparatus further includes a second pair of transistors to receive the first input signal and the second input signal and to generate a second output signal that is a shifted version of the second input signal.
摘要翻译： 通常，在一个方面，本公开描述了一种用于移动低挥杆信号的装置。 该装置包括第一对晶体管，用于接收第一输入信号和第二输入信号，并产生作为第一输入信号的偏移版本的第一输出信号。 该装置还包括第二对晶体管，用于接收第一输入信号和第二输入信号，并产生作为第二输入信号的移位版本的第二输出信号。
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