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公开(公告)号：US20200313841A1
公开(公告)日：2020-10-01
申请号：US16903001
申请日：2020-06-16
申请人： Kandou Labs SA
发明人： Roger Ulrich , Armin Tajalli , Ali Hormati , Richard Simpson
摘要： Generating, during a first and second signaling interval, an aggregated data signal by forming a linear combination of wire signals received in parallel from wires of a multi-wire bus, wherein at least some of the wire signals undergo a signal level transition during the first and second signaling interval; measuring a signal skew characteristic of the aggregated data signal; and, generating wire-specific skew offset metrics, each wire-specific skew offset metric based on the signal skew characteristic.
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公开(公告)号：US09363114B2
公开(公告)日：2016-06-07
申请号：US14636098
申请日：2015-03-02
申请人： Kandou Labs SA
发明人： Amin Shokrollahi , Brian Holden , Richard Simpson
CPC分类号： H04L25/49 , H04L25/03006 , H04L25/03057 , H04L25/08 , H04L25/085
摘要： Vector signaling codes providing guaranteed numbers of transitions per unit transmission interval are described, along with methods and systems for their generation and use. The described architecture may include multiple communications sub-systems, each having its own communications wire group or sub-channel, clock-embedded signaling code, pre- and post-processing stages to guarantee the desired code transition density, and global encoding and decoding stages to first distribute data elements among the sub-systems, and then to reconstitute the received data from its received sub-system elements.
摘要翻译： 描述了提供每单位传输间隔保证数量的转换的向量信令码，以及用于其生成和使用的方法和系统。 所描述的架构可以包括多个通信子系统，每个子系统具有其自己的通信线组或子信道，时钟嵌入式信令代码，预处理和后处理阶段以保证期望的代码转换密度，以及全局编码和解码阶段 首先在子系统之间分配数据元素，然后从接收到的子系统元素重建接收到的数据。
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公开(公告)号：US20150249559A1
公开(公告)日：2015-09-03
申请号：US14636098
申请日：2015-03-02
申请人： Kandou Labs SA
发明人： Amin Shokrollahi , Brian Holden , Richard Simpson
CPC分类号： H04L25/49 , H04L25/03006 , H04L25/03057 , H04L25/08 , H04L25/085
摘要： Vector signaling codes providing guaranteed numbers of transitions per unit transmission interval are described, along with methods and systems for their generation and use. The described architecture may include multiple communications sub-systems, each having its own communications wire group or sub-channel, clock-embedded signaling code, pre- and post-processing stages to guarantee the desired code transition density, and global encoding and decoding stages to first distribute data elements among the sub-systems, and then to reconstitute the received data from its received sub-system elements.
摘要翻译： 描述了提供每单位传输间隔保证数量的转换的向量信令码，以及用于其生成和使用的方法和系统。 所描述的架构可以包括多个通信子系统，每个子系统具有其自己的通信线组或子信道，时钟嵌入式信令代码，预处理和后处理阶段以保证期望的代码转换密度，以及全局编码和解码阶段 首先在子系统之间分配数据元素，然后从接收到的子系统元素重建接收到的数据。
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公开(公告)号：US09071476B2
公开(公告)日：2015-06-30
申请号：US14199960
申请日：2014-03-06
申请人： Kandou Labs, SA
发明人： John Fox , Brian Holden , Ali Hormati , Peter Hunt , John D. Keay , Amin Shokrollahi , Richard Simpson , Anant Singh , Andrew Kevin John Stewart , Giuseppe Surace , Roger Ulrich
CPC分类号： H04L25/028 , H04L25/0292
摘要： Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may take on more than two signal values.
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5.发明申请公开(公告)号：US20140254642A1
公开(公告)日：2014-09-11
申请号：US14199960
申请日：2014-03-06
申请人： Kandou Labs, SA
发明人： John Fox , Brian Holden , Ali Hormati , Peter Hunt , John D. Keay , Amin Shokrollahi , Richard Simpson , Anant Singh , Andrew Kevin John Stewart , Giuseppe Surace , Roger Ulrich
IPC分类号： H04L25/02
CPC分类号： H04L25/028 , H04L25/0292
摘要： Systems and methods are described for transmitting data over physical channels to provide a high bandwidth, low latency interface between integrated circuit chips with low power utilization. Communication is performed using group signaling over multiple wires using a vector signaling code, where each wire carries a low-swing signal that may take on more than two signal values.
摘要翻译： 描述了用于通过物理信道传输数据的系统和方法，以在具有低功率利用率的集成电路芯片之间提供高带宽，低延迟的接口。 使用矢量信令码通过多条线路使用组信令进行通信，其中每条线路携带可能承受多于两个信号值的低摆动信号。
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公开(公告)号：US11177894B2
公开(公告)日：2021-11-16
申请号：US17142014
申请日：2021-01-05
申请人： Kandou Labs SA
发明人： Richard Simpson
IPC分类号： H04L7/00 , H04B17/364 , H04L7/04 , H04L25/02 , H04L1/00 , H04L25/03 , H04B3/466 , H04L25/06 , G06F11/32
摘要： Methods and systems are described for obtaining a plurality of BER-specific correction values by comparing a first set of BER values obtained by sampling, at a sampling instant near the center of a signaling interval, a non-DFE corrected received signal with a second set of BER values obtained by sampling a DFE-corrected received signal at the sampling instant. A set of eye-scope BER measurements are obtained, each eye-scope BER measurement having a sampling offset relative to the sampling instant, a voltage offset value representing a voltage offset applied to alter a decision threshold, and an eye-scope BER value. A set of DFE-adjusted eye-scope BER measurements are generated by using BER-specific correction values to adjust the voltage offset values of the eye-scope BER measurements.
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公开(公告)号：US10887030B2
公开(公告)日：2021-01-05
申请号：US16890922
申请日：2020-06-02
申请人： Kandou Labs SA
发明人： Richard Simpson
IPC分类号： H04L7/00 , H04B17/364 , H04L7/04 , H04L25/02 , H04L1/00 , H04L25/03 , H04B3/466 , H04L25/06 , G06F11/32
摘要： Methods and systems are described for obtaining a plurality of BER-specific correction values by comparing a first set of BER values obtained by sampling, at a sampling instant near the center of a signaling interval, a non-DFE corrected received signal with a second set of BER values obtained by sampling a DFE-corrected received signal at the sampling instant. A set of eye-scope BER measurements are obtained, each eye-scope BER measurement having a sampling offset relative to the sampling instant, a voltage offset value representing a voltage offset applied to alter a decision threshold, and an eye-scope BER value. A set of DFE-adjusted eye-scope BER measurements are generated by using BER-specific correction values to adjust the voltage offset values of the eye-scope BER measurements.
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公开(公告)号：US20210006440A1
公开(公告)日：2021-01-07
申请号：US17028834
申请日：2020-09-22
申请人： Kandou Labs SA
发明人： Ali Hormati , Richard Simpson
摘要： Methods and systems are described for generating two comparator outputs by comparing a received signal to a first threshold and a second threshold according to a sampling clock, the first and second thresholds determined by an estimated amount of inter-symbol interference on a multi-wire bus, selecting one of the two comparator outputs as a data decision, the selection based on at least one prior data decision, and selecting one of the two comparator outputs as a phase-error decision, the phase error decision selected in response to identification of a predetermined data decision pattern.
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公开(公告)号：US11251934B2
公开(公告)日：2022-02-15
申请号：US16903001
申请日：2020-06-16
申请人： Kandou Labs SA
发明人： Roger Ulrich , Armin Tajalli , Ali Hormati , Richard Simpson
摘要： Generating, during a first and second signaling interval, an aggregated data signal by forming a linear combination of wire signals received in parallel from wires of a multi-wire bus, wherein at least some of the wire signals undergo a signal level transition during the first and second signaling interval; measuring a signal skew characteristic of the aggregated data signal; and, generating wire-specific skew offset metrics, each wire-specific skew offset metric based on the signal skew characteristic.
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公开(公告)号：US11165611B2
公开(公告)日：2021-11-02
申请号：US17028834
申请日：2020-09-22
申请人： Kandou Labs SA
发明人： Ali Hormati , Richard Simpson
摘要： Methods and systems are described for generating two comparator outputs by comparing a received signal to a first threshold and a second threshold according to a sampling clock, the first and second thresholds determined by an estimated amount of inter-symbol interference on a multi-wire bus, selecting one of the two comparator outputs as a data decision, the selection based on at least one prior data decision, and selecting one of the two comparator outputs as a phase-error decision, the phase error decision selected in response to identification of a predetermined data decision pattern.
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