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21. 发明申请

US20090079498A1 OFFSET CANCELLATION IN A CAPACITIVELY COUPLED AMPLIFIER 有权
标题翻译：在一个电容耦合放大器中的偏移消除
公开(公告)号：US20090079498A1
公开(公告)日：2009-03-26
申请号：US11860693
申请日：2007-09-25
申请人： Robert J. Drost , Robert Proebsting , Arlene Proebsting , Scott M. Fairbanks , Ronald Ho
发明人： Robert J. Drost , Robert Proebsting , Arlene Proebsting , Scott M. Fairbanks , Ronald Ho
IPC分类号： H03G3/20
CPC分类号： H03F3/45973 , H03F1/30
摘要： A method for calibrating an offset voltage of an amplifier used to amplify capacitively coupled communication signals is described. During this process, a common voltage is applied to one or more inputs to the amplifier. Next, an output of the amplifier is iteratively, measured, and charge is applied to the one or more inputs until the offset voltage is less than a pre-determined value. Note that applying the charge may involve applying a sequence of one or more charge pulses.
摘要翻译：描述了用于校准用于放大电容耦合通信信号的放大器的偏移电压的方法。在该过程中，将公共电压施加到放大器的一个或多个输入。接下来，迭代地，测量放大器的输出，并且将电荷施加到一个或多个输入，直到偏移电压小于预定值。注意，应用电荷可以包括应用一个或多个充电脉冲的序列。

22. 发明授权

US07395483B1 Method and apparatus for performing error-detection and error-correction 有权
标题翻译：用于执行错误检测和纠错的方法和装置
公开(公告)号：US07395483B1
公开(公告)日：2008-07-01
申请号：US10966083
申请日：2004-10-15
申请人： Bernard Tourancheau , Ronald Ho , Robert J. Drost
发明人： Bernard Tourancheau , Ronald Ho , Robert J. Drost
IPC分类号： H03M13/37
CPC分类号： H03M13/09 , H03M13/098 , H03M13/2906
摘要： One embodiment of the present invention provides a system that facilitates detecting and correcting errors. The system operates by receiving a data packet comprised of p words on a communication pathway, wherein each bit of a word is received on a separate data line in a set of data lines that comprise the communication pathway. The system also receives a time signature t on the communication pathway, wherein t contains per-bit error information for the p words in the data packet. As the data packet is received, the system performs an error-detection operation on each data bit of the data packet in parallel, wherein the error-detection operation generates per-bit error information for each bit position across the p words in the data packet. Finally, the system compares the generated per-bit error-information with the corresponding per-bit error information in the time signature t to determine if there exists an error.
摘要翻译：本发明的一个实施例提供一种便于检测和纠正错误的系统。该系统通过在通信路径上接收由p个字组成的数据分组来进行操作，其中单词的每个比特在包含通信路径的一组数据线中的单独的数据线上被接收。系统还在通信路径上接收时间签名t，其中t包含数据包中的p个字的每位错误信息。当接收到数据包时，系统并行对数据包的每个数据位执行错误检测操作，其中错误检测操作针对数据包中的p个字的每个比特位置生成每位错误信息。最后，系统将生成的每位错误信息与时间签名t中相应的每位错误信息进行比较，以确定是否存在错误。

23. 发明授权

US07026867B2 Floating input amplifier for capacitively coupled communication 有权
标题翻译：用于电容耦合通信的浮动输入放大器
公开(公告)号：US07026867B2
公开(公告)日：2006-04-11
申请号：US10879606
申请日：2004-06-28
申请人： Robert J. Drost , Ronald Ho , Ivan E. Sutherland
发明人： Robert J. Drost , Ronald Ho , Ivan E. Sutherland
IPC分类号： H03F1/02
CPC分类号： H03F3/45977 , H03F3/08
摘要： One embodiment of the present invention provides a capacitively-coupled receiver amplifier that has an input with no DC coupling. A DC voltage is programmed on the input. During programming, a transmitter is held at a voltage at a midpoint between a voltage that represents a logical “1” and a voltage that represents a logical “0” and the input voltage of the receiver amplifier is programmed to be substantially the switching-threshold voltage for the receiver amplifier. Then, during normal data communication, the transmitter drives high and low electrical signals that are coupled to the receiver amplifier. Since the input of the receiver amplifier has been substantially set to the DC voltage, the receiver amplifier need not control the DC voltage of the input for each transition in the electrical signals.
摘要翻译：本发明的一个实施例提供一种具有不具有直流耦合的输入的电容耦合接收放大器。在输入端编程一个直流电压。在编程期间，发射机被保持在表示逻辑“1”的电压和表示逻辑“0”的电压之间的中点处的电压，并且接收机放大器的输入电压被编程为基本上是切换阈值接收放大器的电压。然后，在正常数据通信期间，发射机驱动耦合到接收放大器的高电平和低电信号。由于接收机放大器的输入已基本设置为直流电压，所以接收放大器不需要控制电信号中每个转换的输入的直流电压。

24. 发明授权

US08035977B1 Apparatus for reducing power consumption by using capacitive coupling to perform majority detection 有权
标题翻译：用于通过使用电容耦合来执行多数检测来降低功耗的装置
公开(公告)号：US08035977B1
公开(公告)日：2011-10-11
申请号：US11098724
申请日：2005-04-04
申请人： Ronald Ho , Robert J. Drost , Robert Hopkins
发明人： Ronald Ho , Robert J. Drost , Robert Hopkins
IPC分类号： H05K7/02 , H05K7/06 , H05K7/08 , H05K7/10
CPC分类号： G06F1/189
摘要： One embodiment of the present invention provides a system that reduces power consumption by using capacitive coupling to perform a majority detection operation. The system starts by driving a plurality of signals onto a plurality of driven wires. The signals are then fed from each driven wire through a corresponding coupling capacitor to a single majority detection wire. Next, the system feeds signal on the majority detection wire and a bias voltage to a differential receiver. The output of the differential receiver switches if the signal on the majority-detection wire switches relative to the bias voltage. The system then uses the output of the differential receiver to optimize the signals from the plurality of driven wires for transmission across a long signal route. Optimizing the transmission of signals reduces the power consumed by the computer system.
摘要翻译：本发明的一个实施例提供一种通过使用电容耦合来执行多数检测操作来降低功耗的系统。系统通过将多个信号驱动到多个从动线上开始。然后，这些信号从每个从动导线通过相应的耦合电容器馈送到单个多数检测线。接下来，系统将多数检测线上的信号馈送到差分接收器的偏置电压。如果多数检测线上的信号相对于偏置电压切换，差分接收器的输出将切换。然后，系统使用差分接收器的输出来优化来自多条驱动线的信号，以便在长信号路径上传输。优化信号传输减少了计算机系统消耗的功耗。

25. 发明授权

US08024623B2 Misalignment compensation for proximity communication 有权
标题翻译：邻近通信的对准补偿
公开(公告)号：US08024623B2
公开(公告)日：2011-09-20
申请号：US12263713
申请日：2008-11-03
申请人： Ronald Ho , Ashok V. Krishnamoorthy , John E. Cunningham , Robert J. Drost
发明人： Ronald Ho , Ashok V. Krishnamoorthy , John E. Cunningham , Robert J. Drost
IPC分类号： G11B5/00
CPC分类号： H04B5/0075 , H01L25/065 , H01L2924/0002 , H04B17/318 , H04L1/0009 , Y10T29/49133 , H01L2924/00
摘要： In a proximity communication system, transmit elements on one chip are aligned with receive elements on a second chip juxtaposed with the first chip. However, if the elements are misaligned, either statically or dynamically, the coupling between chips is degraded. The misalignment may be compensated by controllably degrading performance of the system. For example, the transmit signal strength may be increased. The bit period or the time period for biasing each bit may be increased, thereby decreasing the bandwidth. Multiple coupling elements, such as capacitors, may be ganged together, thereby decreasing the number of channels. The granularity of symbols, such as images, may be increased by decreasing the number of bits per symbol.
摘要翻译：在接近通信系统中，一个芯片上的发射元件与与第一芯片并置的第二芯片上的接收元件对齐。然而，如果元件是静态的或动态的，则芯片之间的耦合会降低。可以通过可控地降低系统的性能来补偿未对准。例如，可以增加发射信号强度。可以增加用于偏置每个位的位周期或时间段，从而降低带宽。诸如电容器的多个耦合元件可以组合在一起，从而减少通道数量。可以通过减少每个符号的比特数来增加诸如图像的符号的粒度。

26. 发明授权

US07840136B1 Low-latency switch using optical and electrical proximity communication 有权
标题翻译：低延迟开关采用光电接近通讯
公开(公告)号：US07840136B1
公开(公告)日：2010-11-23
申请号：US11728844
申请日：2007-03-26
申请人： John E. Cunningham , Ashok V. Krishnamoorthy , Ronald Ho , Robert J. Drost
发明人： John E. Cunningham , Ashok V. Krishnamoorthy , Ronald Ho , Robert J. Drost
IPC分类号： H04J14/00 , G02B6/26
CPC分类号： H04Q11/0005 , H04Q3/66 , H04Q2011/0039 , H04Q2011/005 , H04Q2011/0052
摘要： Embodiments of a switch are described. This switch includes input ports configured to receive signals (which include data) and output ports configured to output the signals. In addition, the switch includes switching elements and a flow-control mechanism, which is configured to provide flow-control information associated with the data to the switching elements via an electrical control path. Note that the electrical control path is configured to use proximity communication to communicate the flow-control information. Furthermore, the switching elements are configured to selectively couple the input ports to the output ports via optical signal paths based on the flow-control information.
摘要翻译：描述开关的实施例。该开关包括被配置为接收被配置为输出信号的信号（其包括数据）和输出端口的输入端口。此外，开关包括开关元件和流量控制机构，其被配置为经由电控制路径向开关元件提供与数据相关联的流量控制信息。注意，电气控制路径被配置为使用邻近通信来传达流量控制信息。此外，开关元件被配置为基于流量控制信息经由光信号路径选择性地将输入端口耦合到输出端口。

27. 发明授权

US07817880B1 Multi-chip systems using on-chip photonics 有权
标题翻译：使用片上光子学的多芯片系统
公开(公告)号：US07817880B1
公开(公告)日：2010-10-19
申请号：US11728845
申请日：2007-03-26
申请人： Robert J. Drost , Ronald Ho , Ashok V. Krishnamoorthy , John E. Cunningham
发明人： Robert J. Drost , Ronald Ho , Ashok V. Krishnamoorthy , John E. Cunningham
IPC分类号： G02B6/10 , G02B6/12
CPC分类号： G02B6/43 , G02B6/35 , H04B10/803
摘要： Embodiments of a system are described. This system includes an array of single-chip modules (CMs), which includes a first CM and a second CM which are coupled to each other. A given CM, which can be either the first CM or the second CM, includes a semiconductor die that is configured to communicate data signals with other CMs by capacitively coupled proximity communication and optical proximity communication using proximity connectors. These proximity connectors are proximate to a surface of the semiconductor die, and the semiconductor die includes an optical signal path configured to communicate on-chip optical signals.
摘要翻译：描述系统的实施例。该系统包括单芯片模块（CM）的阵列，其包括彼此耦合的第一CM和第二CM。可以是第一CM或第二CM的给定CM包括被配置为通过电容耦合的邻近通信和使用接近连接器的光学邻近通信与其他CM通信数据信号的半导体管芯。这些接近连接器靠近半导体管芯的表面，并且半导体管芯包括被配置为传送片上光信号的光信号通路。

28. 发明申请

US20090193295A1 VOLTAGE MARGIN TESTING FOR PROXIMITY COMMUNICATION 有权
标题翻译：电压通信的电压测试
公开(公告)号：US20090193295A1
公开(公告)日：2009-07-30
申请号：US12352488
申请日：2009-01-12
申请人： Robert J. Drost , Ronald Ho , Justin M. Schauer
发明人： Robert J. Drost , Ronald Ho , Justin M. Schauer
IPC分类号： G06F11/07
CPC分类号： G01R31/31932 , G01R31/31922 , G01R31/31937 , H01L23/48 , H01L25/0657 , H01L2225/06527 , H01L2225/06596 , H01L2924/0002 , H01L2924/3011 , Y10T29/49133 , H01L2924/00
摘要： A method of testing a proximity communication system for voltage margin by impressing a voltage upon the data link between the transmitter on one chip and the receiver on the other chip coupled to the transmitter through a capacitively coupling circuit formed by juxtaposed capacitor pads on the respective two chips. The impressed voltage is varied and the output of the receiver is monitored to determine an operational voltage margin. The floating inputs on the receiver may be continuously biased by connecting them to variable biasing supply voltages through high impedances. When the floating inputs are periodically refreshed to a refresh voltage during a quiescent data period, the refresh voltage is varied between successive refresh cycles. The variable test voltage may be applied to transmitter output when it is in a high-impedance state, and the output of the receiver is measured.
摘要翻译：一种通过在一个芯片上的发送器与另一个芯片上的接收器之间的数据链路上施加电压的电压裕度来测试接近通信系统的方法，该电容耦合电路通过在相应的两个并置电容器焊盘上形成的电容耦合电路筹码外加电压变化，监视接收器的输出以确定工作电压裕量。接收器上的浮动输入可以通过将其通过高阻抗连接到可变的偏置电源电压而被连续地偏置。当在静止数据周期期间将浮动输入周期性地刷新到刷新电压时，刷新电压在连续刷新周期之间变化。可变测试电压在高阻抗状态时可以应用于发射机输出，并测量接收机的输出。

29. 发明授权

US07129712B1 Attofarad capacitance measurement 有权
标题翻译： Attofarad电容测量
公开(公告)号：US07129712B1
公开(公告)日：2006-10-31
申请号：US11256733
申请日：2005-10-24
申请人： Robert J. Drost , R. David Hopkins , Ronald Ho
发明人： Robert J. Drost , R. David Hopkins , Ronald Ho
IPC分类号： G01R27/26
CPC分类号： G01R27/2605
摘要： An electrical circuit for determining a capacitance is described. The electrical circuit includes a first device, a rectifying circuit and a feedback circuit. The first device has a first terminal and a second terminal. The first device has a first unknown capacitance and the first terminal may be configured to receive a time-varying voltage signal. The rectifying circuit has an input terminal, an output terminal and a feedback terminal. The input terminal may be coupled to the second terminal and the output terminal may be configured for coupling to an output electrical circuit. The feedback circuit may selectively couple the output terminal to the input terminal using the feedback terminal such that the output terminal and the input terminal are substantially at a common voltage.
摘要翻译：描述用于确定电容的电路。电路包括第一装置，整流电路和反馈电路。第一装置具有第一端子和第二端子。第一器件具有第一未知电容，并且第一端子可以被配置为接收时变电压信号。整流电路具有输入端子，输出端子和反馈端子。输入端可以耦合到第二端子，并且输出端子可以被配置为耦合到输出电路。反馈电路可以使用反馈端选择性地将输出端耦合到输入端，使得输出端和输入端基本上处于公共电压。

30. 发明授权

US08164918B2 Steering fabric that facilitates reducing power use for proximity communication 有权
标题翻译：有助于减少接近通讯用电的转向结构
公开(公告)号：US08164918B2
公开(公告)日：2012-04-24
申请号：US12317659
申请日：2008-12-24
申请人： Alex Chow , Robert J. Drost , Ronald Ho , Robert Proebsting , Arlene Proebsting, legal representative
发明人： Alex Chow , Robert J. Drost , Ronald Ho , Robert Proebsting
IPC分类号： H05K7/00
CPC分类号： H01L23/48 , H01L2225/06527 , H01L2924/0002 , H01L2924/00
摘要： One embodiment of the present invention provides a system that facilitates reducing the power needed for proximity communication. This system includes an integrated circuit with an array of transmission pads that transmit signals using proximity communication. This array is comprised of a set of macropads, where each given macropad is comprised of a set of micropads that can be configured to transmit a signal. A steering fabric routes signals to and within macropads, such that a subset of the micropads in the array can be configured to transmit the signal to a receiving component. Each macropad receives a limited number of input signals, with the steering fabric routing input signals to the micropads of the macropads. By limiting the number of input signals that are routed to the micropads of the macropads, the steering fabric eliminates redundant steering configurations for the array and reduces the power needed to transmit the signal.
摘要翻译：本发明的一个实施例提供一种有助于减少邻近通信所需的功率的系统。该系统包括具有使用接近通信传输信号的传输焊盘阵列的集成电路。该阵列由一组宏阵列组成，其中每个给定的宏阵列由可配置为传输信号的一组微阵列组成。导向结构将信号路由到宏区域内并且在宏阵列内传送，使得阵列中的微阵列的子集可以被配置为将信号发送到接收组件。每个macropad都接收到有限数量的输入信号，其中转向结构将输入信号输入到macropads的微型麦克风。通过限制输入信号的数量，路由到巨型阵列的微阵列，转向结构消除了阵列的冗余转向配置，并减少传输信号所需的功率。

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