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    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS
    11.
    发明申请
    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权

    公开(公告)号：US20210051047A1

    公开(公告)日：2021-02-18

    申请号：US17000191

    申请日：2020-08-21

    Applicant: Rambus Inc.

    Inventor： Vladimir M. Stojanovic ,  Andrew C. Ho ,  Anthony Bessios ,  Fred F. Chen ,  Elad Alon ,  Mark A. Horowitz

    IPC: H04L25/49 ,  H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04B1/04

    Abstract: A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

    High speed signaling system with adaptive transmit pre-emphasis
    16.
    发明授权
    High speed signaling system with adaptive transmit pre-emphasis 有权

    公开(公告)号：US10411923B2

    公开(公告)日：2019-09-10

    申请号：US15616408

    申请日：2017-06-07

    Applicant: Rambus Inc.

    Inventor： Vladimir M. Stojanovic ,  Andrew C. Ho ,  Anthony Bessios ,  Fred F. Chen ,  Elad Alon ,  Mark A. Horowitz

    IPC: H04L25/49 ,  H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04B1/04

    Abstract: A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

    PARTIAL RESPONSE RECEIVER
    19.
    发明申请
    PARTIAL RESPONSE RECEIVER 有权
    部分响应接收者

    公开(公告)号：US20150319016A1

    公开(公告)日：2015-11-05

    申请号：US14683081

    申请日：2015-04-09

    Applicant: Rambus Inc.

    Inventor： Vladimir M. Stojanovic ,  Andrew C. Ho ,  Anthony Bessios ,  Bruno W. Garlepp ,  Grace Tsang ,  Mark A. Horowitz ,  Jared L. Zerbe ,  Jason C. Wei

    IPC: H04L25/03

    CPC classification number: H04L25/03057 ,  H04L7/0276 ,  H04L25/063 ,  H04L25/497 ,  H04L2025/03369 ,  H04L2025/03503

    Abstract: A signaling system is described. The signaling system comprises a transmit device, a receive device including a partial response receive circuit, and a signaling path coupling the transmit device and the receive device. The receive device observes an equalized signal from the signaling path, and includes circuitry to use feedback from the most recent previously resolved symbol to sample a currently incoming symbol. The transmit device equalizes transmit data to transmit the equalized signal, by applying weighting based on one or more data values not associated with the most recent previously resolved symbol value.

    Abstract translation: 描述信令系统。 信令系统包括发送设备，包括部分响应接收电路的接收设备以及耦合发送设备和接收设备的信令路径。 接收设备观察来自信令路径的均衡信号，并且包括使用来自最近先前解析的符号的反馈来采样当前输入符号的电路。 发送装置通过基于与最近先前分辨的符号值不相关的一个或多个数据值应用加权来均衡发送数据以发送均衡信号。

    High speed signaling system with adaptive transmit pre-emphasis
    20.
    发明授权
    High speed signaling system with adaptive transmit pre-emphasis 有权
    具有自适应发送预加重的高速信号系统

    公开(公告)号：US08994398B2

    公开(公告)日：2015-03-31

    申请号：US13913242

    申请日：2013-06-07

    Applicant: Rambus Inc.

    Inventor： Vladimir M. Stojanovic ,  Andrew C. Ho ,  Anthony Bessios ,  Fred F. Chen ,  Elad Alon ,  Mark A. Horowitz

    IPC: H03K17/16 ,  H04B1/04 ,  H04L25/02 ,  H04L25/03 ,  H04L25/06 ,  H04L25/49

    CPC classification number: H04L25/49 ,  H04B1/04 ,  H04B1/0475 ,  H04B2001/0416 ,  H04L25/025 ,  H04L25/028 ,  H04L25/0282 ,  H04L25/03019 ,  H04L25/03343 ,  H04L25/03885 ,  H04L25/061 ,  H04L25/4917 ,  H04L2025/03363 ,  H04L2025/03802

    Abstract: A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level.

    Abstract translation: 具有自适应发送预加重的高速信号系统。 发射电路具有多个输出驱动器，以将第一信号输出到信号路径上。 接收电路被耦合以经由信号路径接收第一信号并被配置为生成第一信号是否超过阈值电平的指示。 第一阈值控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整阈值电平。 驱动强度控制电路被耦合以从接收电路接收指示，并且被配置为根据第一信号是否超过阈值电平来调整多个输出驱动器中的至少一个输出驱动器的驱动强度。

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