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公开(公告)号：US10735048B1
公开(公告)日：2020-08-04
申请号：US14961806
申请日：2015-12-07
申请人： Aquantia Corporation
发明人： Hossein Sedarat
摘要： An Ethernet network switch is disclosed. The network switch includes multiple Ethernet ports, each port including Ethernet transceiver circuitry forming one end of an Ethernet link. The switch also includes control logic to, when the switch is connected to multiple Ethernet cables defining Ethernet links, 1) initiate a diagnostic mode of operation, 2) control at least two of the multiple Ethernet links to measure a parameter associated with alien crosstalk, and 3) configure operation parameters for the links based on the measured parameter.
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公开(公告)号：US10673561B1
公开(公告)日：2020-06-02
申请号：US15853504
申请日：2017-12-22
申请人： Aquantia Corporation
发明人： Ramin Farjad , Paul Langner
摘要： A BASE-T Ethernet transceiver is disclosed. The transceiver includes a BASE-T Ethernet transmit circuit that employs a data framing module. The data framing module includes an input interface to receive Ethernet block data bits, and, forward error correction encoder is coupled to the logic to encode at least a first portion of the data bits to generate first error check bits. A Reed-Solomon (RS) encoder is coupled to the logic to encode at least a second portion of the data bits in accordance with a Reed-Solomon error code to generate second error check bits. A symbol mapper modulates the Ethernet block data bits in accordance with an SQ64 constellation comprising back-to-back PAM8 symbols.
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公开(公告)号：US09742465B1
公开(公告)日：2017-08-22
申请号：US14961797
申请日：2015-12-07
申请人： Aquantia Corporation
发明人： Hossein Sedarat , Dragan Labalo
摘要： A method of operation in an Ethernet transceiver is disclosed. The method includes initiating a training mode of operation, and transmitting Infofield frames to a link partner. Each Infofield frame including a payload field to provide data to the link partner. A flow of the transmitted Infofield frames is controlled such that a new Infofield frame is not transmitted before a previous Infofield frame is received by the link partner.
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公开(公告)号：US09590695B1
公开(公告)日：2017-03-07
申请号：US13965635
申请日：2013-08-13
申请人： Aquantia Corporation
发明人： Hossein Sedarat , Ramin Farjadrad , Ramin Shirani
IPC分类号： H04B3/32
CPC分类号： H04B3/32
摘要： Rejecting radio frequency (RF) interference in a communication system. In one aspect, rejecting RF interference includes receiving a signal on a signal path of a receiver from a communication channel, the signal including one or more received signal components having a frequency within a predetermined subset range of frequencies within an operating signal bandwidth of the receiver. The received signal components are attenuated using a notch filter to reduce RF interference obtained during transmission of the signal over the communication channel. In some embodiments, the one or more signal components have been boosted in power at a link partner transmitter connected to the communication channel.
摘要翻译： 拒绝通信系统中的射频（RF）干扰。 在一个方面，拒绝RF干扰包括从通信信道在接收机的信号路径上接收信号，所述信号包括一个或多个接收信号分量，所述接收信号分量具有在接收机的操作信号带宽内的预定子集范围内的频率 。 所接收的信号分量使用陷波滤波器衰减，以减少通过通信信道在信号传输期间获得的RF干扰。 在一些实施例中，一个或多个信号分量在连接到通信信道的链路伙伴发射机处被提升。
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公开(公告)号：US09281916B2
公开(公告)日：2016-03-08
申请号：US14634605
申请日：2015-02-27
申请人： Aquantia Corporation
发明人： Ramin Farjadrad , Paul Langner , Hossein Sedarat , Ramin Shirani , Kamal Dalmia
IPC分类号： H04L1/00 , H04L12/931 , H04L12/811 , H04L12/825
CPC分类号： H04L1/0002 , H04L47/25 , H04L47/38 , H04L49/351
摘要： Methods and apparatus for transferring data along a link with a 10GBASE-T transceiver at a variable data rate are disclosed. One exemplary method includes detecting a link quality metric; and selecting a symbol transmission rate and a data modulation scheme based on the detected link quality metric. In many implementations, for a selected symbol transmission rate, if the detected link quality metric is less than a link quality threshold, then the selecting of the data modulation scheme is performed such that a data bit per symbol value represented by the selected data modulation scheme is decreased by at least ½ data bit per symbol. The selected symbol transmission rate and the selected modulation together represent a selectable data rate from a selection of data rates.
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16.发明申请公开(公告)号：US20150171991A1
公开(公告)日：2015-06-18
申请号：US14634605
申请日：2015-02-27
申请人： Aquantia Corporation
发明人： Ramin Farjadrad , Paul Langner , Hossein Sedarat , Ramin Shirani , Kamal Dalmia
IPC分类号： H04L1/00
CPC分类号： H04L1/0002 , H04L47/25 , H04L47/38 , H04L49/351
摘要： Methods and apparatus for transferring data along a link with a 10 GBASE-T transceiver at a variable data rate are disclosed. One exemplary method includes detecting a link quality metric; and selecting a symbol transmission rate and a data modulation scheme based on the detected link quality metric. In many implementations, for a selected symbol transmission rate, if the detected link quality metric is less than a link quality threshold, then the selecting of the data modulation scheme is performed such that a data bit per symbol value represented by the selected data modulation scheme is decreased by at least ½ data bit per symbol. The selected symbol transmission rate and the selected modulation together represent a selectable data rate from a selection of data rates.
摘要翻译： 公开了以可变数据速率沿着具有10GBASE-T收发器的链路传送数据的方法和装置。 一种示例性方法包括检测链路质量度量; 以及基于检测到的链路质量度量来选择符号传输速率和数据调制方案。 在许多实施方案中，对于所选择的符号传输速率，如果检测到的链路质量度量小于链路质量阈值，则执行数据调制方案的选择，使得由所选择的数据调制方案表示的每符号值的数据比特 每符号减少至少1/2个数据位。 选择的符号传输速率和所选择的调制一起表示来自数据速率选择的可选数据速率。
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公开(公告)号：US11296904B1
公开(公告)日：2022-04-05
申请号：US16419643
申请日：2019-05-22
申请人： Aquantia Corporation
IPC分类号： G06F1/00 , H04L12/40 , G06F1/3203 , H04L12/02 , G06F1/26 , G06F1/3209
摘要： An Ethernet transceiver is disclosed. The Ethernet transceiver includes transceiver circuitry to couple to one end of an Ethernet link. The transceiver circuitry includes transmit circuitry to transmit high-speed Ethernet data along the Ethernet link at a first data rate and receiver circuitry. The receiver circuitry includes adaptive filter circuitry and correlator circuitry. The receiver circuitry is responsive to an inline signal to operate in a low-power alert mode with the adaptive filter circuitry disabled and to receive alert signals from the Ethernet link simultaneous with transmission of the Ethernet data by the transmit circuitry. The alert signals are detected by the correlator circuitry and include a sequence of alert intervals exhibiting encoded data at a second data rate less than the first data rate.
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公开(公告)号：US10972293B1
公开(公告)日：2021-04-06
申请号：US16162751
申请日：2018-10-17
申请人： Aquantia Corporation
IPC分类号： H04L12/10 , H04L12/40 , H04L12/931 , H04B17/336 , H04L12/12
摘要： An Ethernet transceiver is disclosed. The Ethernet transceiver includes transceiver circuitry having receiver circuitry to receive refresh signals during corresponding refresh cycles from a link partner during a low-power idle mode of operation. Each refresh signal has a refresh period, and where a quiet period is interposed between successive refresh cycles. Signal quality detection circuitry, during the low-power idle mode, determines a measure of signal quality associated with the received refresh signals. Subsequent refresh cycles exhibit at least one of an adjusted refresh period or an adjusted quiet period based on the measure of signal quality.
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公开(公告)号：US10855498B1
公开(公告)日：2020-12-01
申请号：US15451920
申请日：2017-03-07
申请人： Aquantia Corporation
发明人： Ramin Farjadrad , Paul Langner
摘要： A packaged semiconductor device includes a substrate and first, second, and third integrated circuit (IC) chips. The first integrated circuit (IC) chip is mounted on the substrate to receive first data and includes a first transfer interface to transmit the first data via first conductors formed in the substrate. The second IC chip mounts on the substrate and has a second transfer interface to receive the first data. The second IC includes on-chip conductors to route the first data on-chip to an output interface. The output interface transmits the first data via second conductors formed on the substrate. A third IC chip mounts on the substrate and has a third transfer interface to receive the first data via the second conductors.
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公开(公告)号：US10601542B1
公开(公告)日：2020-03-24
申请号：US16114084
申请日：2018-08-27
申请人： Aquantia Corporation
发明人： Ramin Farjadrad , Paul Langner , Hossein Sedarat , Ramin Shirani , Kamal Dalmia
IPC分类号： H04L1/00 , H03M13/11 , G06F11/10 , H04L12/825 , H04L12/811 , H04L12/931
摘要： Methods and apparatus for transmitting Ethernet data along an Ethernet link with a BASE-T transceiver are disclosed. One exemplary BASE-T Ethernet transceiver includes an Ethernet data framing module having an input interface to receive Ethernet block data bits at a first data rate. Logic associates the Ethernet block data bits with an auxiliary bit and a number of zero bits. An error encoder is coupled to the logic to encode all of the data bits, auxiliary bit and zero bits into an error encoded transport frame having plural error check bits. A symbol mapper receives the error encoded transport frame and transforms the error encoded transport frame into multiple symbols. A transmitter coupled to the symbol mapper transmits the multiple symbols over an Ethernet link at one of a selection of symbol rates. The data rate of data transmitted over the Ethernet link is based on the number of zero bits.
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