公开(公告)号：US11159153B2

公开(公告)日：2021-10-26

申请号：US16295886

申请日：2019-03-07

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: H03K7/02 ,  G06F13/42 ,  H04B14/02 ,  H03M5/00 ,  H04L27/04 ,  H04L27/06 ,  H04L25/06

Abstract: Mechanisms to reduce noise and/or energy consumption in PAM communication systems, utilizing conditional symbol substitution in each burst interval of a multi-data lane serial data bus.

公开(公告)号：US20190303339A1

公开(公告)日：2019-10-03

申请号：US16295595

申请日：2019-03-07

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: G06F13/42 ,  H04L25/49 ,  H04L1/00

Abstract: Methods of operating a serial data bus divide series of data bits into sequences of one or more bits and encode the sequences as N-level symbols, which are then transmitted at multiple discrete voltage levels. These methods may be utilized to communicate over serial data lines to improve bandwidth and reduce crosstalk and other sources of noise.

公开(公告)号：US11966348B2

公开(公告)日：2024-04-23

申请号：US15929094

申请日：2019-01-28

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor

IPC: G06F13/12 ,  G06F13/40 ,  G06F13/42

CPC classification number: G06F13/4009 ,  G06F13/4045 ,  G06F13/4282

Abstract: Methods of operating a serial data bus divide series of data bits into sequences of one or more bits and encode the sequences as N-level symbols, which are then transmitted at multiple discrete voltage levels. These methods may be utilized to communicate over serial data lines to improve bandwidth and reduce crosstalk and other sources of noise.

公开(公告)号：US20190305765A1

公开(公告)日：2019-10-03

申请号：US16295886

申请日：2019-03-07

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: H03K7/02 ,  H04B14/02 ,  G06F13/42

Abstract: Mechanisms to reduce noise and/or energy consumption in PAM communication systems, utilizing conditional symbol substitution in each burst interval of a multi-data lane serial data bus.

公开(公告)号：US20200242062A1

公开(公告)日：2020-07-30

申请号：US15929094

申请日：2019-01-28

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor

IPC: G06F13/40 ,  G06F13/42

Abstract: Methods of operating a serial data bus divide series of data bits into sequences of one or more bits and encode the sequences as N-level symbols, which are then transmitted at multiple discrete voltage levels. These methods may be utilized to communicate over serial data lines to improve bandwidth and reduce crosstalk and other sources of noise.

公开(公告)号：US10599606B2

公开(公告)日：2020-03-24

申请号：US16360212

申请日：2019-03-21

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: G06F3/00 ,  G06F13/42 ,  H04L25/49 ,  G06F13/40

Abstract: Methods of operating a serial data bus generate two-level bridge symbols to insert between four-level symbols on one or more data lanes of the serial data bus, to reduce voltage deltas on the one or more data lanes during data transmission on the serial data bus.

公开(公告)号：US20190305995A1

公开(公告)日：2019-10-03

申请号：US16368472

申请日：2019-03-28

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: H04L25/49 ,  H04B3/32 ,  H04L1/00

Abstract: Methods of operating a serial data bus divide series of data bits into sequences of one or more bits and encode the sequences as N-level symbols, which are then transmitted at multiple discrete voltage levels. These methods may be utilized to communicate over serial data lines to improve bandwidth and reduce crosstalk and other sources of noise.

公开(公告)号：US20230043152A1

公开(公告)日：2023-02-09

申请号：US17668226

申请日：2022-02-09

Applicant: NVIDIA Corp.

Inventor： James Michael O'Connor ,  Donghyuk Lee

IPC: G06F13/16 ,  G06T1/60 ,  G06T1/20

Abstract: PAM encoding techniques that leverage unused idle periods in channels between data transmissions to apply longer but more energy-efficient codes. To improve energy savings, multiple sparse encoding schemes may be utilized selectively to fit different sized gaps in the traffic. These approaches may provide energy reductions, for example with memory READ and WRITE traffic, when transferring 4-bit data using 3-symbol sequences.

公开(公告)号：US10657094B2

公开(公告)日：2020-05-19

申请号：US16295595

申请日：2019-03-07

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: G06F13/42 ,  H04L1/00 ,  H04L25/49

Abstract: Methods of operating a serial data bus divide series of data bits into sequences of one or more bits and encode the sequences as N-level symbols, which are then transmitted at multiple discrete voltage levels. These methods may be utilized to communicate over serial data lines to improve bandwidth and reduce crosstalk and other sources of noise.

公开(公告)号：US20190303340A1

公开(公告)日：2019-10-03

申请号：US16360212

申请日：2019-03-21

Applicant: NVIDIA Corp.

Inventor： Donghyuk Lee ,  James Michael O'Connor ,  John Wilson

IPC: G06F13/42 ,  H04L25/49

Abstract: Methods of operating a serial data bus are disclosed that generate two-level bridge symbols to insert between four-level symbols on a data lane, to reduce voltage deltas on the data lane during data transmission. These methods may be utilized on multiple data lanes of the serial data bus.