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公开(公告)号：US10573998B2
公开(公告)日：2020-02-25
申请号：US16216254
申请日：2018-12-11
申请人： Kandou Labs, S.A.
IPC分类号： H01R13/6461 , H01R13/504 , H04L25/49 , H01R12/73 , H01R12/71 , H01R13/405 , H01P1/04 , H05K1/02 , H01P3/00 , H01P5/02
摘要： Methods and systems described include a first dielectric material having a plurality of embedded conductors of a multi-wire channel, the plurality of embedded conductors comprising at least a first, second and third conductor, wherein a first distance between the first and second conductors is less than a second distance between the first and third conductors, wherein the first dielectric material has a first dielectric constant ε1 and a second dielectric material embedded in the first dielectric material, the second dielectric material embedded in between the first and third conductors, the second dielectric material having a second dielectric constant ε2, wherein ε2>ε1.
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公开(公告)号：US10560146B2
公开(公告)日：2020-02-11
申请号：US16363788
申请日：2019-03-25
申请人： Kandou Labs, S.A.
发明人： Roger Ulrich , Armin Tajalli , Ali Hormati , Richard Simpson
摘要： Methods and systems are described for receiving, over a plurality of consecutive signaling intervals, a plurality of codewords, each codeword received as a plurality of symbols via wires of a multi-wire bus, the plurality of symbols received at a plurality of multi-input comparators (MICs), wherein each symbol is received by at least two MICs, generating, for each codeword, a corresponding linear combination of the received symbols, generating a plurality of composite skew measurement signals over the plurality of consecutive signaling intervals, each composite skew measurement signal based on samples of one or more linear combinations, and updating wire-specific skew values of the wires of the multi-wire bus, wherein one or more wire-specific skew values are updated according to composite skew measurement signals associated with linear combinations formed by at least two different MICs.
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63.发明授权公开(公告)号：US10348436B2
公开(公告)日：2019-07-09
申请号：US15019868
申请日：2016-02-09
申请人： Kandou Labs, S.A.
发明人： Amin Shokrollahi , Ali Hormati , Roger Ulrich
摘要： An efficient communications apparatus is described for a vector signaling code to transport data and optionally a clocking signal between integrated circuit devices. Methods of designing such apparatus and their associated codes based on a new metric herein called the “ISI Ratio” are described which permit higher communications speed, lower system power consumption, and reduced implementation complexity.
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64.发明授权公开(公告)号：US10326623B1
公开(公告)日：2019-06-18
申请号：US15835648
申请日：2017-12-08
申请人： Kandou Labs, S.A.
发明人： Armin Tajalli
摘要： Pre-charging two or more sets of nodes to set a differential output of a multi-input summation latch connected to the two or more sets of nodes in a pre-charged state, the two or more sets of nodes comprising a set of data signal nodes and a set of DFE correction nodes, in response to a sampling clock, generating a differential data voltage and an aggregate differential DFE correction signal, and generating a data decision by driving the differential output of the multi-input summation latch into one of two possible output states according to a summation of the differential data voltage signal and the aggregate differential DFE correction signal and subsequently holding the data decision by holding the differential output of the multi-input summation latch in a latched state for a duration determined by the sampling clock.
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公开(公告)号：US10153591B2
公开(公告)日：2018-12-11
申请号：US15499869
申请日：2017-04-27
申请人： Kandou Labs, S.A.
IPC分类号： H01R13/6461 , H01R12/71 , H01R13/405 , H01R13/504 , H04L25/49 , H01R12/73 , H01P1/04 , H05K1/02 , H01P3/00 , H01P5/02
摘要： Methods and systems described include a first dielectric material having a plurality of embedded conductors of a multi-wire channel, the plurality of embedded conductors comprising at least a first, second and third conductor, wherein a first distance between the first and second conductors is less than a second distance between the first and third conductors, wherein the first dielectric material has a first dielectric constant ε1 and a second dielectric material embedded in the first dielectric material, the second dielectric material embedded in between the first and third conductors, the second dielectric material having a second dielectric constant ε2, wherein ε2>ε1.
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公开(公告)号：US10116472B2
公开(公告)日：2018-10-30
申请号：US15823194
申请日：2017-11-27
申请人： KANDOU LABS, S.A.
发明人： Ali Hormati , Armin Tajalli , Amin Shokrollahi
摘要： Transmission of baseband and carrier-modulated vector codewords, using a plurality of encoders, each encoder configured to receive information bits and to generate a set of baseband-encoded symbols representing a vector codeword; one or more modulation circuits, each modulation circuit configured to operate on a corresponding set of baseband-encoded symbols, and using a respective unique carrier frequency, to generate a set of carrier-modulated encoded symbols; and, a summation circuit configured to generate a set of wire-specific outputs, each wire-specific output representing a sum of respective symbols of the carrier-modulated encoded symbols and at least one set of baseband-encoded symbols.
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公开(公告)号：US10116468B1
公开(公告)日：2018-10-30
申请号：US15636309
申请日：2017-06-28
申请人： KANDOU LABS, S.A.
发明人： Ali Hormati
摘要： Methods and systems are described for receiving symbols of a codeword via wires of a multi-wire bus, the codeword representing an aggregate sum of a plurality of sub-channel constituent codewords, each sub-channel constituent codeword representing a weight applied to an associated sub-channel vector of a plurality of sub-channel vectors of an orthogonal matrix, generating a plurality of comparator outputs using a plurality of common-mode resistant multi-input comparators (MICs), each common-mode resistant MIC having a set of input coefficients representing a corresponding sub-channel vector of the plurality of sub-channel vectors, each sub-channel vector (i) mutually orthogonal and (ii) orthogonal to a common-mode sub-channel vector, outputting a set of forward-channel output bits formed based on the plurality of comparator outputs, obtaining a sequence of reverse-channel bits, and transmitting the sequence of reverse-channel bits by sequentially transmitting common-mode codewords over the wires of the multi-wire bus.
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公开(公告)号：US10091033B2
公开(公告)日：2018-10-02
申请号：US15918851
申请日：2018-03-12
申请人： Kandou Labs, S.A.
发明人： Roger Ulrich
摘要： Transmission line driver systems are described which are comprised of multiple paralleled driver elements. The paralleled structure allows efficient generation of multiple output signal levels with adjustable output amplitude, optionally including Finite Impulse Response signal shaping and skew pre-compensation.
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公开(公告)号：US10056903B2
公开(公告)日：2018-08-21
申请号：US15582550
申请日：2017-04-28
申请人： Kandou Labs, S.A.
发明人： Omid Talebi Amiri , Richard Simpson
IPC分类号： H03K17/16 , H03K19/003 , H03K19/00 , H04B3/04
CPC分类号： H03K19/0005 , H04B3/04
摘要： A driver for transmitting multi-level signals on a multi-wire bus is described that includes at least one current source connected to a transmission line, each current source selectively enabled to source current to the transmission line to drive a line voltage above a termination voltage of a termination voltage source connected to the transmission line via a termination impedance element, wherein each of the at least one current sources has an output impedance different than a characteristic impedance of the transmission line, and at least one current sink connected to the transmission line, each current sink selectively enabled to sink current from the transmission line to drive a line voltage below the termination voltage, each of the at least one current sinks having an output impedance different than the characteristic impedance of the transmission line.
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公开(公告)号：US10055372B2
公开(公告)日：2018-08-21
申请号：US14952491
申请日：2015-11-25
申请人： Kandou Labs S.A.
发明人： Amin Shokrollahi
IPC分类号： G06F13/36 , G06F13/362 , G06F13/40 , H04L25/02 , H04L25/49
CPC分类号： G06F13/362 , G06F13/4068 , H04L25/0272 , H04L25/49 , Y02D10/14 , Y02D10/151
摘要： Orthogonal differential vector signaling codes are described which support encoded sub-channels allowing transport of distinct data and clocking signals over the same transport medium. Embodiments are described which are suitable for implementation in both conventional high-speed CMOS and DRAM integrated circuit processes.
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