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公开(公告)号：US11706061B2
公开(公告)日：2023-07-18
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
CPC classification number: H04L25/49 , H04B1/04 , H04B1/0475 , H04L25/025 , H04L25/028 , H04L25/03019 , H04L25/03343 , H04L25/03885 , H04L25/061 , H04L25/4917 , H04B2001/0416 , H04L25/0282 , 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.
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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
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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公开(公告)号：US10225111B2
公开(公告)日：2019-03-05
申请号：US15907205
申请日：2018-02-27
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 , H04L25/06 , H04L25/497 , H04L7/027
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.
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公开(公告)号：US09917708B2
公开(公告)日：2018-03-13
申请号：US15092435
申请日：2016-04-06
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: H01L25/03 , H04L25/03 , H04L25/06 , H04L25/497 , H04L7/027
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.
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公开(公告)号：US20130272446A1
公开(公告)日：2013-10-17
申请号：US13913156
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: H04B1/04
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.
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Patent Agency Ranking
公开(公告)号：US10764094B2
公开(公告)日：2020-09-01
申请号：US16287941
申请日：2019-02-27
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 , H04L25/497 , H04L7/027 , H04L25/06
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.
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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
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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公开(公告)号：US20190268187A1
公开(公告)日：2019-08-29
申请号：US16287941
申请日：2019-02-27
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 , H04L25/497 , H04L25/06 , H04L7/027
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.
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公开(公告)号：US09287909B2
公开(公告)日：2016-03-15
申请号：US14620163
申请日：2015-02-11
Applicant: Rambus Inc.
Inventor： Vladimir M. Stojanovic , Andrew C. Ho , Anthony Bessios , Fred F. Chen , Elad Alon , Mark A. Horowitz
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.
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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。
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