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1. 发明申请

US20170117877A1 MISMATCH CALIBRATION OF CAPACITIVE DIFFERENTIAL ISOLATOR 有权
公开(公告)号：US20170117877A1
公开(公告)日：2017-04-27
申请号：US14924310
申请日：2015-10-27
申请人： ANALOG DEVICES, INC.
发明人： Dongwan Ha
IPC分类号： H03H11/28 , H03H11/04
CPC分类号： H03H11/28 , H03H11/04 , H03K3/012 , H03K19/018521 , H04L25/0278 , H04L25/12
摘要： Embodiments of the present disclosure may provide a method of calibrating an isolator system. The method may comprise the steps of driving a common signal to a pair of input terminals of the isolator system; measuring differences in signals at output terminals of the isolator system; and varying impedance of impedance elements connected between the output terminals and a center-tap terminal of the isolator system until a mismatch at the output terminals is minimized.

2. 发明申请

US20140240592A1 SMALL FORM FACTOR PLUGGABLE UNIT USED AS A VIDEO SIGNAL CONVERSION DEVICE 审中-公开
标题翻译：用作视频信号转换装置的小型可插拔单元
公开(公告)号：US20140240592A1
公开(公告)日：2014-08-28
申请号：US14275343
申请日：2014-05-12
申请人： EMBRIONIX DESIGN INC.
发明人： Renaud Lavoie , Eric Dudemaine
IPC分类号： H04N7/01 , H04N11/20 , H04N11/24
CPC分类号： H04N7/0125 , G09G5/005 , G09G2370/04 , H04B10/40 , H04L25/12 , H04N7/01 , H04N11/20 , H04N11/24
摘要： The present disclosure relates to devices comprising small form factor pluggable units (SFP) having connectors for receiving and sending signals and a processor for converting the received signals prior to sending the converted signals. Received or sent signals may comprise video signals in various analog or digital formats. Conversion of the received signals may comprise analog to digital or digital to analog conversion, serializing or deserializing a digital signal, frame synchronization of a video signal, and/or cross conversion of a video signal from a first format to a second format.
摘要翻译：本公开涉及包括具有用于接收和发送信号的连接器的小型可插拔单元（SFP）的设备和用于在发送转换的信号之前转换接收到的信号的处理器。接收或发送的信号可以包括各种模拟或数字格式的视频信号。接收信号的转换可以包括模数转换或数模转换，串行化或反序列化数字信号，视频信号的帧同步和/或视频信号从第一格式到第二格式的交叉转换。

3. 发明授权

US08093911B2 Time-of-flight measurement based on transfer function and simulated exponential stimulus 有权
标题翻译：基于传递函数和模拟指数刺激的飞行时间测量
公开(公告)号：US08093911B2
公开(公告)日：2012-01-10
申请号：US12912392
申请日：2010-10-26
申请人： Robert H. Flake , John F. Biskup , Su-liang Liao
发明人： Robert H. Flake , John F. Biskup , Su-liang Liao
IPC分类号： G01R27/04 , G01R27/28
CPC分类号： H04B3/462 , G01R31/088 , G01R31/11 , H04B3/466 , H04L1/24 , H04L25/03834 , H04L25/12
摘要： Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin=De−ASD[x−vSDt], where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, and vSD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.
摘要翻译：描述了用于发送具有可控衰减和传播速度的波形的系统和方法。一种示例性方法包括：产生指数波形，指数波形（a）由等式Vin = De-ASD [x-vSDt]表征，其中D是幅度，Vin是电压，t是时间，ASD是衰减系数，vSD是传播速度; 和（b）以最大值截断。示例性装置包括：指数波形发生器; 耦合到指数波形发生器的输出的输入记录器; 被测耦合到指数波形发生器的输出的被测传输线; 耦合到被测传输线的输出记录器; 连接到被测传输线的附加传输线; 以及耦合到附加传输线和接地的终端阻抗。

4. 发明申请

US20110035170A1 Time-of-Flight Measurement Based on Transfer Function and Simulated Exponential Stimulus 有权
标题翻译：基于传递函数和模拟指数激励的飞行时间测量
公开(公告)号：US20110035170A1
公开(公告)日：2011-02-10
申请号：US12912392
申请日：2010-10-26
申请人： Robert H. Flake , John F. Biskup , Su-Liang Liao
发明人： Robert H. Flake , John F. Biskup , Su-Liang Liao
IPC分类号： G06F19/00
CPC分类号： H04B3/462 , G01R31/088 , G01R31/11 , H04B3/466 , H04L1/24 , H04L25/03834 , H04L25/12
摘要： Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin=De−ASD[x−vSDt], where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, and vSD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.
摘要翻译：描述了用于发送具有可控衰减和传播速度的波形的系统和方法。一种示例性方法包括：产生指数波形，指数波形（a）由等式Vin = De-ASD [x-vSDt]表征，其中D是幅度，Vin是电压，t是时间，ASD是衰减系数，vSD是传播速度; 和（b）以最大值截断。示例性装置包括：指数波形发生器; 耦合到指数波形发生器的输出的输入记录器; 被测耦合到指数波形发生器的输出的被测传输线; 耦合到被测传输线的输出记录器; 耦合到被测传输线的附加传输线; 以及耦合到附加传输线和接地的终端阻抗。

5. 发明申请

US20090058480A1 SCHEME FOR CONTROLLING RISE-FALL TIMES IN SIGNAL TRANSITIONS 有权
标题翻译：控制信号转换中的上升时间的方案
公开(公告)号：US20090058480A1
公开(公告)日：2009-03-05
申请号：US11848241
申请日：2007-08-31
申请人： Anant Shankar Kamath
发明人： Anant Shankar Kamath
IPC分类号： H03K5/12 , H03K17/04 , H03K5/01
CPC分类号： H03K19/0005 , H03K19/00361 , H04L25/0276 , H04L25/0278 , H04L25/0282 , H04L25/0288 , H04L25/12
摘要： A serial interface interacting with a transmission pad system circuitry wherein a differential impedance is reckoned across the system voltage source, includes a scheme for controlling transmitter rise-fall transitions (to selectively speed up or slow down transitions) without requiring additional timing controls or affecting reflection coefficient of the transmitter port. The scheme uses at least one pre-charged capacitor, e.g., PMOS capacitor, interacting with the transmitter pad and connected through resistances or otherwise across the differential impedance with a switch. A modified scheme uses first and second parallely connected PMOS capacitors connectable with the transmission pad by switches, which may be NMOS switches. The scheme may be used in a MIPI D-PHY compliant DSI transmitter operating at, for e.g. 800 Mbps, and low signal common-modes. The scheme controls signal transition times of high speed circuitry including transmitters and uses a DATA signal which is already available to the circuitry.
摘要翻译：与传输焊盘系统电路交互的串行接口，其中跨越系统电压源计算差分阻抗，包括用于控制发射机上升 - 下降转换（选择性地加速或减慢转换）的方案，而不需要额外的时序控制或影响反射发射机端口系数。该方案使用至少一个预充电电容器，例如PMOS电容器，与发射器焊盘相互作用，并通过电阻或其它方式通过差分阻抗与开关连接。修改的方案使用可以是NMOS开关的开关来连接与传输焊盘连接的第一和第二平行连接的PMOS电容器。该方案可以用在例如MIPI D-PHY兼容的DSI发射机中。 800 Mbps，低信号共模。该方案控制包括发射机在内的高速电路的信号转换时间，并使用已经可用于电路的DATA信号。

6. 发明授权

US07375602B2 Methods for propagating a non sinusoidal signal without distortion in dispersive lossy media 有权
标题翻译：在分散损耗介质中传播无畸变的非正弦信号的方法
公开(公告)号：US07375602B2
公开(公告)日：2008-05-20
申请号：US11010198
申请日：2004-12-10
申请人： Robert H. Flake , John F. Biskup , Su-liang Liao
发明人： Robert H. Flake , John F. Biskup , Su-liang Liao
IPC分类号： H04B3/04 , G01R31/11 , G01K17/00
CPC分类号： H04B3/462 , G01R31/088 , G01R31/11 , H04B3/466 , H04L1/24 , H04L25/03834 , H04L25/12
摘要： Systems and methods are described for transmitting a waveform having a controllable attenuation and propagation velocity. An exemplary method comprises: generating an exponential waveform, the exponential waveform (a) being characterized by the equation Vin=De−ASD[x−vSDt], where D is a magnitude, Vin is a voltage, t is time, ASD is an attenuation coefficient, and vSD is a propagation velocity; and (b) being truncated at a maximum value. An exemplary apparatus comprises: an exponential waveform generator; an input recorder coupled to an output of the exponential waveform generator; a transmission line under test coupled to the output of the exponential waveform generator; an output recorder coupled to the transmission line under test; an additional transmission line coupled to the transmission line under test; and a termination impedance coupled to the additional transmission line and to a ground.
摘要翻译：描述了用于发送具有可控衰减和传播速度的波形的系统和方法。一种示例性方法包括：产生指数波形，指数波形（a）的特征在于＆lt; N＆gt;＆lt; SUP＆gt; SUB2> _{> 其中D是幅度，V < 在中是电压，t是时间，A 是衰减系数，v SS是传播速度; 和（b）以最大值截断。示例性装置包括：指数波形发生器; 耦合到指数波形发生器的输出的输入记录器; 被测耦合到指数波形发生器的输出的被测传输线; 耦合到被测传输线的输出记录器; 耦合到被测传输线的附加传输线; 以及耦合到附加传输线和接地的终端阻抗。}

7. 发明申请

US20080106298A1 MOS linear region impedance curvature correction 有权
公开(公告)号：US20080106298A1
公开(公告)日：2008-05-08
申请号：US11974925
申请日：2007-10-16
申请人： Tim Bales
发明人： Tim Bales
IPC分类号： H03K17/16
CPC分类号： H03F1/3205 , H03F1/32 , H03F3/16 , H03K17/162 , H03K19/00384 , H04L25/028 , H04L25/12
摘要： A system and method to correct or cancel MOS linear region impedance curvature employing an analog solution to trim out the MOS linear region impedance curvature while accommodating PVT spreads in values of internal or external precision resistors. The linear region curvature correction may be obtained by using two MOS transistors in the pad driver/buffer and operating the transistors so as to proportionately increase output impedance of one of them when the output impedance of the other decreases, and vice versa. A linear pad impedance may be maintained over a range of Vpad values, while also maintaining the Vgs supplied to pad driver transistors at its maximum possible value to obtain greater linearity. The approach of the present disclosure relaxes the requirements on the voltage/current references used in the MOS pad drivers and makes tight impedance control possible, especially in a situation where the MOS fabrication process (typically all currently used processes) does not have available an internal precision resistor with a reasonably well controlled value.

8. 发明授权

US07075996B2 Symbol-based signaling device for an electromagnetically-coupled bus system 失效
标题翻译：用于电磁耦合总线系统的基于符号的信令装置
公开(公告)号：US07075996B2
公开(公告)日：2006-07-11
申请号：US09792546
申请日：2001-02-23
申请人： Thomas D. Simon , Rajeevan Amirtharajah , Nandu J. Marketkar , Thomas F. Knight, Jr.
发明人： Thomas D. Simon , Rajeevan Amirtharajah , Nandu J. Marketkar , Thomas F. Knight, Jr.
IPC分类号： H04L27/00 , H04L25/00
CPC分类号： G06F13/4086 , G06F13/426 , H04L25/0266 , H04L25/0268 , H04L25/12 , H05K1/0237 , H05K1/0239 , H05K1/14 , H05K3/361
摘要： The present invention provides a chipset for transferring data through an electromagnetically coupled bus system. The chipset includes a modulator, a matching circuit and a demodulator. The modulator modifies a clock to encode multiple bits in a complementary pair of symbols. The matching circuit modifies the clock signal to generate a complementary pair of reference signals that is transmitted with the complementary symbol pair, and the demodulator decodes a second set of bits from selected properties of a complementary pair of transferred symbols.
摘要翻译：本发明提供一种用于通过电磁耦合总线系统传送数据的芯片组。芯片组包括调制器，匹配电路和解调器。调制器修改时钟以对互补的符号对中的多个比特进行编码。所述匹配电路修改所述时钟信号以产生与所述互补符号对一起发送的互补的参考信号对，并且所述解调器从所传送符号的互补对的选定属性解码第二组位。

9. 发明申请

US20050163203A1 Communication channel calibration for drift conditions 有权
标题翻译：漂移条件的通信通道校准
公开(公告)号：US20050163203A1
公开(公告)日：2005-07-28
申请号：US10766765
申请日：2004-01-28
申请人： Frederick Ware , Richard Perego , Craig Hampel
发明人： Frederick Ware , Richard Perego , Craig Hampel
IPC分类号： H04B1/38 , H04L1/24 , H04L7/10 , H04L27/00
CPC分类号： H04L1/242 , G11C7/04 , G11C7/1057 , G11C7/1084 , G11C29/022 , G11C29/025 , G11C29/028 , G11C2207/2254 , H04L7/0091 , H04L7/033 , H04L7/10 , H04L25/0292 , H04L25/12 , H04L27/00
摘要： A method and system provides for execution of calibration cycles from time to time during normal operation of the communication channel. A calibration cycle includes de-coupling the normal data source from the transmitter and supplying a calibration pattern in its place. The calibration pattern is received from the communication link using the receiver on the second component. A calibrated value of a parameter of the communication channel is determined in response to the received calibration pattern. The steps involved in calibration cycles can be reordered to account for utilization patterns of the communication channel. For bidirectional links, calibration cycles are executed which include the step of storing received calibration patterns on the second component, and retransmitting such calibration patterns back to the first component for use in adjusting parameters of the channel at first component.
摘要翻译：方法和系统提供在通信信道的正常操作期间不时地执行校准周期。校准周期包括将来自发射机的正常数据源解耦，并在其位置提供校准模式。使用第二组件上的接收器从通信链路接收校准模式。响应于所接收的校准模式来确定通信信道的参数的校准值。校准周期中涉及的步骤可以重新排序以考虑通信信道的利用模式。对于双向链路，执行校准周期，其包括将接收到的校准模式存储在第二组件上的步骤，以及将这些校准模式重新发送回第一组件以用于调整第一组件上的通道的参数。

10. 发明授权

US06576847B2 Clamp to secure carrier to device for electromagnetic coupler 有权
标题翻译：夹紧器用于将载体固定到电磁耦合器的装置上
公开(公告)号：US06576847B2
公开(公告)日：2003-06-10
申请号：US09751442
申请日：2000-12-29
申请人： Nandu J. Marketkar , Mark E. Naylor , John L. Critchlow
发明人： Nandu J. Marketkar , Mark E. Naylor , John L. Critchlow
IPC分类号： H05K102
CPC分类号： G06F13/4086 , H04L25/0266 , H04L25/0268 , H04L25/12 , H05K1/0237 , H05K1/0239 , H05K1/14 , H05K3/361
摘要： A device comprises a component having circuitry, a carrier comprising one or more conductive areas to form a portion of an electromagnetic coupler, and a clamp to secure the carrier to the device.
摘要翻译：装置包括具有电路的部件，载体，其包括一个或多个导电区域以形成电磁耦合器的一部分，以及用于将载体固定到该装置的夹具。

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