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Inventor

John T. Chapman

Inventor
Cupertino, CA, US

Overview

122→
Patents
1990–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 122 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication44%
H04NPictorial communication, e.g. television14%
H04BTransmission13%
H04JMultiplex communication5%
G06FElectric digital data processing5%
H04WWireless communication networks4%
H04HBroadcast communication3%
H04MTelephonic communication3%
H03MCoding2%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids2%
PatentTitleYear
11,082,502Policy architecture for cable networks202110,841,936Upstream split scheduler202010,798,603Quality of service framework for applications202010,797,750System architecture for supporting digital pre-distortion and full duplex in cable network environments202010,771,378Radio frequency (RF) ethernet trunking202010,771,109Hybrid active tap202010,764,114Techniques for wireless access and wireline network integration202010,720,961Digital echo cancellation with single feedback202010,708,195Predictive scheduler202010,680,911Quality of experience based network resource management202010,652,917Techniques for wireless access and wireline network integration202010,574,356Virtual physical layer202010,567,036Echo cancellation to alleviate timing varying channels202010,530,310Digital pre-distortion for an AB amplifier202010,523,270Full duplex (FDX) enhanced node201910,516,435Detecting full duplex (FDX) amplifier cable modem (CM) attachment201910,476,448Digital pre-distortion for an amplifier201910,469,128Analog echo cancellation with digital-to-analog converter noise suppression201910,367,631Front end for full duplex cable modem201910,248,443Virtual modem termination system migration in a cable modem network environment201910,244,435Cable cellular heterogeneous network201910,230,519Full duplex resource allocation in cable network environment201910,177,811Echo cancellation201910,135,490Interference group discovery for full duplex network architecture in cable network environment201810,089,123Virtual cable modem termination system redundancy in a cable modem network environment201810,044,607Communication with segment routing in a cable modem network environment201810,033,542Scheduling mechanisms in full duplex cable network environments201810,003,405Data over cable service interface specification (DOCSIS) over passive optical network (PON)20189,966,993Interference suppression in full duplex cable network environments20189,942,024Full duplex network architecture in cable network environments20189,942,001Apparatus, system, and method for providing energy management, profiles, and message blocks in a cable service environment20189,912,464'Interference relationship characterization in full duplex cable network environments'20189,832,499Cable TV network broadband access system with distributed deployment and centralized control20179,820,275'Proactive upstream scheduling for flows in a point-to-multipoint communications network'20179,735,814'High power efficient amplification at cable modems through digital pre-distortion and machine learning in cable network environments'20179,722,739'Managing time offset and frequency drift in asynchronous DOCSIS remote PHY network environments'20179,692,564'Downstream external physical interface transport in DOCSIS 3.1 network environments'20179,641,354'Virtual cable modem termination system'20179,641,253'Data over cable service interface specification (DOCSIS) over passive optical network (PON)'20179,559,899'Upstream external PHY interface for data and control plane traffic'20179,419,862'System and method for discovering and verifying a hybrid fiber-coaxial topology in a cable network environment'20169,369,339'Virtual cable modem termination system'20169,313,095'Modular headend architecture with downstream multicast'20169,252,902'Precision timing in a data over cable service interface specification (DOCSIS) system'20169,247,310'DOCSIS out-of-band control signal frequency conversion for legacy set-top boxes'20169,246,700'Generic control protocol'20169,246,701'Downstream device architecture and control'20169,246,788'Apparatus, system, and method for providing energy management, profiles, and message blocks in a cable service environment'20169,237,084'Apparatus, system, and method for providing energy management, profiles, and message blocks in a cable service environment'20169,237,085'Apparatus, system, and method for providing energy management, profiles, and message blocks in a cable service environment'20169,143,808'Multi-channel MPEG between headend and fiber node'20159,130,769'Upstream external PHY interface for data and control plane traffic'20159,112,816'Dynamic EQAM discovery in M-CMTS architecture'20159,014,282'Precision timing in a data over cable service interface specification (DOCSIS) system'20158,989,221'System and method for discovering and verifying a hybrid fiber-coaxial topology in a cable network environment'20158,873,549'Managing L2VPN connectivity after a fiber node split'20148,831,425'Data over cable service interface specification (DOCSIS) over passive optical network (PON)'20148,797,854'Scheduling for RF over fiber optic cable [RFoG]'20148,774,217'Time domain duplex between CMTS and cable modems'20148,635,314'Use of IPv6 in access networks'20148,627,392'Proxy addressing scheme for cable networks'2014RE044661'Method for a cable modem to rapidly switch to a backup CMTS'20138,599,842'Transferring DOCSIS frames using a label switching network'20138,576,842'Transmission of multi-channel MPEG'20138,553,704'Wideband upstream protocol'20138,489,958'DOCSIS MAC-PHY downstream convergence layer'20138,457,156'Wideband cable system'20138,457,086'Dynamic EQAM discovery in M-CMTS architecture'20138,397,267'Hi-split upstream design for DOCSIS'20138,160,093'Timing system for modular cable modem termination system'20128,149,833'Wideband cable downstream protocol'20128,089,983'Reserving resources over a DOCSIS downstream external physical interface'20128,081,659'Map message expediency monitoring and automatic delay adjustments in M-CMTS'20117,983,162'Aggregate maximum throughput for groups of service flows'20117,941,512'Use of IPv6 in access networks'20117,864,686'Tunneling scheme for transporting information over a cable network'20117,835,274'Wideband provisioning'20107,817,540'Method and apparatus for N+1 RF switch with passive working path and active protection path'20107,782,898'Wideband cable system'20107,773,594'Transferring DOCSIS frames using a label switching network'20107,720,101'Wideband cable modem with narrowband circuitry'20107,701,951'Resource reservation and admission control for IP network'20107,688,828'Downstream remote physical interface for modular cable modem termination system'20107,672,332'Map routing technique implemented in access networks'20107,672,230'Downstream channel change technique implemented in an access network'20107,656,890'Downstream channel change technique implemented in an access network'20107,639,620'Packet fiber node'20097,639,617'Upstream physical interface for modular cable modem termination system'20097,630,361'Method and apparatus for using data-over-cable applications and services in non-cable environments'20097,620,836'Technique for synchronizing network devices in an access data network'20097,539,208'Timing system for modular cable modem termination system'20097,532,627'Wideband upstream protocol'20097,400,637'Time slotted logical ring'20087,394,830'System for synchronizing circuitry in an access network'20087,349,430'Addressing scheme implemented in access networks'20087,324,515'Proxy addressing scheme for cable networks'20087,209,442'Packet fiber node'20077,139,923'Technique for synchronizing network devices in an access data network'20067,113,484'Downstream channel change technique implemented in an access network'20067,085,287'Map routing technique implemented in access networks'20067,065,779'Technique for synchronizing multiple access controllers at the head end of an access network'20066,901,049'Method and apparatus for supporting header suppression and multiple microflows in a network'20056,823,029'System for managing signals in different clock domains and a programmable digital filter'20046,785,301'Method and apparatus for conducting call waiting-caller identification in a packet switched network'20046,621,812'Method and apparatus for mapping voice activity detection to a scheduled access media'20036,594,280'Method and apparatus for supporting header suppression and multiple microflows in a network'20036,580,723'Time slotted logical ring'20036,466,592'MPEG frame add/drop multiplexer with bandwidth controller'20026,438,123'Method and apparatus for supporting header suppression and multiple microflows in a network'20026,301,633'Generic serial interface with automatic reconfigurability'20016,254,411'Configurable electrical shunt for a computer cable'20016,252,406'Programmable event limit detector for computer system power control'20016,175,603'System for managing signals in different clock domains and a programmable digital filter'20016,163,824'Hot plug port adapter with separate PCI local bus and auxiliary bus'20006,128,313'Apparatus and method for filtering line noise and improper packet formatting'20006,088,754'Generic serial interface with automatic reconfigurability'20006,073,233'Method and apparatus for distributing and accessing configuration registers'20006,004,150'Configurable electrical shunt for a computer cable'19995,930,294'Frequency measurement circuit'19995,793,987'Hot plug port adapter with separate PCI local bus and auxiliary bus'19985,128,619'System and method of determining cable characteristics'19924,907,261'Universal DC signalling detector'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2016Patents assigned to CHAPMAN JOHN T (22)· patent assignee history
1998–2014Based in Cupertino, CA, US· patent location history
1999–2004Patents assigned to CISCO TECH IND (16)· patent assignee history
2006–2021Patents assigned to CISCO TECH INC (99)· patent assignee history
2009–2014Based in Saratoga, CA, US· patent location history
2011–2020Based in Laguna Niguel, CA, US· patent location history
2012–2015Patents assigned to ASATI RAJIV (5)· patent assignee history
2012–2018Based in San Jose, CA, US· patent location history
2013–2015Patents assigned to BERNSTEIN ALON (5)· patent assignee history
2017–2021Based in Coto de Caza, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CISCO TECH INC992006–2021
CHAPMAN JOHN Tself221992–2016
CISCO TECH IND161999–2004
ASATI RAJIV52012–2015
BERNSTEIN ALON52013–2015
Locations
LocationPatentsSpan
Cupertino, California, US351998–2014
Coto de Caza, California, US262017–2021
Laguna Niguel, California, US232011–2020
Saratoga, California, US192009–2014
San Jose, California, US72012–2018