High speed signaling system with adaptive transmit pre-emphasis

    公开(公告)号:US10411923B2

    公开(公告)日:2019-09-10

    申请号:US15616408

    申请日:2017-06-07

    申请人: Rambus Inc.

    摘要: 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
    4.
    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

    申请人: Rambus Inc.

    摘要: 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.

    摘要翻译: 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。

    HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS

    公开(公告)号:US20220209999A1

    公开(公告)日:2022-06-30

    申请号:US17573471

    申请日:2022-01-11

    申请人: Rambus Inc.

    摘要: 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

    公开(公告)号:US11233678B2

    公开(公告)日:2022-01-25

    申请号:US17000191

    申请日:2020-08-21

    申请人: Rambus Inc.

    摘要: 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

    公开(公告)号:US10771295B2

    公开(公告)日:2020-09-08

    申请号:US16548708

    申请日:2019-08-22

    申请人: Rambus Inc.

    摘要: 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

    公开(公告)号:US20200084073A1

    公开(公告)日:2020-03-12

    申请号:US16548708

    申请日:2019-08-22

    申请人: Rambus Inc.

    摘要: 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.