公开(公告)号：US12289252B2

公开(公告)日：2025-04-29

申请号：US17612453

申请日：2020-05-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Matthew Chapman

IPC: H04L49/15

Abstract: Disclosed is networking apparatus comprising: a plurality of communications ports that interface with external computing systems to channel physical layer signals; a dynamic routing module that interconnects communication ports with discrete reconfigurable data conduits, each of the data conduits defining a transmission pathway between the communications ports for physical layer signals. Each of the plurality of communication ports is paired with a receiver module which is adapted to process incoming data received at the communication port.

公开(公告)号：US20220303036A1

公开(公告)日：2022-09-22

申请号：US17619611

申请日：2020-06-18

Applicant: CISCO TECHNOLOGY, INC

Inventor： Matthew Chapman ,  Ka-Shu Wong

IPC: H04J3/06

Abstract: Disclosed is a method of determining time in a digital processing system, comprising, in a present cycle of a first digital clock: accessing a reference time counter for a reference digital clock, wherein the reference time counter increments in value by a fixed amount at every cycle of the reference digital clock, the reference digital clock being of a higher accuracy than the first digital clock; accessing a first time counter for the first digital clock, wherein the first time counter increments in value by an updatable increment amount at each cycle of the first digital clock; and comparing at least one part of the reference time counter with at least one corresponding part of the first time counter. Based on the comparing, an adjustment is made to one or more attributes of the first time counter, so that first time counter at least approximates the reference time counter.

公开(公告)号：US11442838B2

公开(公告)日：2022-09-13

申请号：US17342666

申请日：2021-06-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Matthew Chapman

IPC: G06F1/12 ,  G06F11/34 ,  G06F9/54

Abstract: A method of determining a time stamp for an event in a digital processing system, the method comprising the steps of: obtaining a coarse time stamp from a time stamp counter; obtaining timing correction data from one or more hardware components of the system; and adjusting the coarse time stamp value based on the timing correction data to provide a precision time stamp value.

公开(公告)号：US11804921B2

公开(公告)日：2023-10-31

申请号：US17619611

申请日：2020-06-18

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Matthew Chapman ,  Ka-Shu Wong

IPC: H04J3/06

CPC classification number: H04J3/0685

Abstract: Disclosed is a method of determining time in a digital processing system, comprising, in a present cycle of a first digital clock: accessing a reference time counter for a reference digital clock, wherein the reference time counter increments in value by a fixed amount at every cycle of the reference digital clock, the reference digital clock being of a higher accuracy than the first digital clock; accessing a first time counter for the first digital clock, wherein the first time counter increments in value by an updatable increment amount at each cycle of the first digital clock; and comparing at least one part of the reference time counter with at least one corresponding part of the first time counter. Based on the comparing, an adjustment is made to one or more attributes of the first time counter, so that first time counter at least approximates the reference time counter.

公开(公告)号：US20220239608A1

公开(公告)日：2022-07-28

申请号：US17612453

申请日：2020-05-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Matthew Chapman

IPC: H04L49/15

Abstract: Disclosed is networking apparatus comprising: a plurality of communications ports that interface with external computing systems to channel physical layer signals; a dynamic routing module that interconnects communication ports with discrete reconfigurable data conduits, each of the data conduits defining a transmission pathway between the communications ports for physical layer signals. Each of the plurality of communication ports is paired with a receiver module which is adapted to process incoming data received at the communication port.