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    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS
    3.
    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.

    Selectable-tap Equalizer
    5.
    发明申请
    Selectable-tap Equalizer 有权
    可选择点击均衡器

    公开(公告)号：US20150180646A1

    公开(公告)日：2015-06-25

    申请号：US14616629

    申请日：2015-02-06

    Applicant: Rambus Inc.

    Inventor： Jared L. Zerbe ,  Vladimir M. Stojanovic ,  Fred F. Chen

    IPC: H04L7/00 ,  H04L7/033 ,  H04L25/03

    CPC classification number: H04L25/03019 ,  H04B1/1081 ,  H04L7/0058 ,  H04L7/0087 ,  H04L7/0331 ,  H04L25/03025 ,  H04L25/03038 ,  H04L25/03057 ,  H04L25/03343 ,  H04L25/03885

    Abstract: A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval.

    Abstract translation: 一种具有可选择抽头均衡器的信令电路。 信令电路包括缓冲器，选择电路和均衡电路。 缓冲器用于存储对应于在第一时间间隔期间在信令路径上发送的数据信号的多个数据值。 选择电路耦合到缓冲器，以根据选择值从多个数据值中选择数据值的子集。 均衡电路被耦合以从选择电路接收数据值的子集，并且适于根据数据值的子集来调整对应于在第二时间间隔期间在信令路径上发送的数据信号的信号电平。

    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS
    8.
    发明申请
    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS 有权

    公开(公告)号：US20220209999A1

    公开(公告)日：2022-06-30

    申请号：US17573471

    申请日：2022-01-11

    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.

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