David F. Welch

Person

Atherton, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 12,095,546
- Issue date Sep 17, 2024
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiple access optical subcarriers
- Patent number 11,990,985
- Issue date May 21, 2024
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subcarrier modulation with radio frequency (RF) IQ modulators
- Patent number 11,855,754
- Issue date Dec 26, 2023
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subcarrier based data center network architecture
- Patent number 11,824,632
- Issue date Nov 21, 2023
- Infinera Corporation
- Stuart Elby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,824,628
- Issue date Nov 21, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,791,893
- Issue date Oct 17, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network switches systems for optical communications networks
- Patent number 11,743,621
- Issue date Aug 29, 2023
- Infinera Corporation
- Tulasi Veguru
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,637,630
- Issue date Apr 25, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Code division multiple access optical subcarriers
- Patent number 11,539,430
- Issue date Dec 27, 2022
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,483,066
- Issue date Oct 25, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiple access optical subcarriers
- Patent number 11,451,292
- Issue date Sep 20, 2022
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,258,528
- Issue date Feb 22, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiple access optical subcarriers
- Patent number 11,258,508
- Issue date Feb 22, 2022
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Code division multiple access optical subcarriers
- Patent number 11,218,217
- Issue date Jan 4, 2022
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,095,364
- Issue date Aug 17, 2021
- Infiriera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subcarrier based data center network architecture
- Patent number 11,095,389
- Issue date Aug 17, 2021
- Infiriera Corporation
- Stuart Elby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency division multiple access optical subcarriers
- Patent number 11,075,694
- Issue date Jul 27, 2021
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monolithic photonic integrated circuit (PIC) with a plurality of in...
- Patent number 10,012,797
- Issue date Jul 3, 2018
- Infinera Corporation
- Radhakrishnan L. Nagarajan
- G02 - OPTICS
Information Patent Grant
Apparatus and method for tuning a laser source emission wavelength...
- Patent number 9,971,090
- Issue date May 15, 2018
- Infinera Corporation
- Fred A. Kish
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical communication system having low latency
- Patent number 9,634,788
- Issue date Apr 25, 2017
- Infinera Corporation
- Paul R. Morkel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of achieving acceptable performance in and fabrication of a...
- Patent number 9,372,306
- Issue date Jun 21, 2016
- Infinera Corporation
- Radhakrishnan L. Nagarajan
- G02 - OPTICS
Information Patent Grant
Coolerless photonic integrated circuits (PICs) for WDM transmission...
- Patent number 9,031,412
- Issue date May 12, 2015
- Infinera Corporation
- Radhakrishnan L. Nagarajan
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Multiplexer and modulation arrangements for multi-carrier optical m...
- Patent number 8,861,977
- Issue date Oct 14, 2014
- Infinera Corporation
- John D. McNicol
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Upsampling optical transmitter
- Patent number 8,831,439
- Issue date Sep 9, 2014
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexed optical communication system having...
- Patent number 8,768,177
- Issue date Jul 1, 2014
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication network with skew compensation
- Patent number 8,660,020
- Issue date Feb 25, 2014
- Infinera Corporation
- Drew D. Perkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Degradation adaptation network
- Patent number 8,655,169
- Issue date Feb 18, 2014
- Infinera Corporation
- Drew D. Perkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexed optical communication system archit...
- Patent number 8,655,190
- Issue date Feb 18, 2014
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexed optical communication system having...
- Patent number 8,639,118
- Issue date Jan 28, 2014
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transceiver photonic integrated circuit
- Patent number 8,548,333
- Issue date Oct 1, 2013
- Infinera Corporation
- Radhakrishnan L. Nagarajan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS
- Publication number 20240291566
- Publication date Aug 29, 2024
- Infinera Corporation
- Vikrant Lal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS
- Publication number 20240288749
- Publication date Aug 29, 2024
- Infinera Corporation
- Vikrant Lal
- G02 - OPTICS
Information Patent Application
PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS
- Publication number 20240291568
- Publication date Aug 29, 2024
- Infinera Corporation
- Vikrant Lal
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Subcarrier Based Data Center Network Architecture
- Publication number 20240283558
- Publication date Aug 22, 2024
- Infinera Corporation
- Stuart Elby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20230092560
- Publication date Mar 23, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20230061657
- Publication date Mar 2, 2023
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEPARATELY MANAGED NETWORK ENTITY WITH VIRTUALIZED TRANSPORT FUNCTION
- Publication number 20230066541
- Publication date Mar 2, 2023
- Infinera Corporation
- Steven Joseph Hand
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20230006737
- Publication date Jan 5, 2023
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20220376781
- Publication date Nov 24, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20220376780
- Publication date Nov 24, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20220263581
- Publication date Aug 18, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Subcarrier Based Data Center Network Architecture
- Publication number 20220216935
- Publication date Jul 7, 2022
- Infinera Corporation
- Stuart Elby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20220123831
- Publication date Apr 21, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20210211201
- Publication date Jul 8, 2021
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK SWITCHES SYSTEMS FOR OPTICAL COMMUNICATIONS NETWORKS
- Publication number 20210152902
- Publication date May 20, 2021
- Infinera Corporation
- Tulasi Veguru
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20210091856
- Publication date Mar 25, 2021
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200413169
- Publication date Dec 31, 2020
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200403704
- Publication date Dec 24, 2020
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200403702
- Publication date Dec 24, 2020
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200382216
- Publication date Dec 3, 2020
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200287621
- Publication date Sep 10, 2020
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CODE DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200287648
- Publication date Sep 10, 2020
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CODE DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200287649
- Publication date Sep 10, 2020
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS
- Publication number 20200287651
- Publication date Sep 10, 2020
- Infinera Corporation
- Amir Jafari
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUBCARRIER MODULATION WITH RADIO FREQUENCY (RF) IQ MODULATORS
- Publication number 20200252154
- Publication date Aug 6, 2020
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Subcarrier Based Data Center Network Architecture
- Publication number 20200021386
- Publication date Jan 16, 2020
- Infinera Corporation
- Stuart Elby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
USING EVENTS DATA
- Publication number 20130066679
- Publication date Mar 14, 2013
- Infinera Corporation
- David F. WELCH
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multiplexer and Modulation Arrangements for Multi-Carrier Optical M...
- Publication number 20120251119
- Publication date Oct 4, 2012
- John D. McNicol
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING...
- Publication number 20120082459
- Publication date Apr 5, 2012
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
UPSAMPLING OPTICAL TRANSMITTER
- Publication number 20120082466
- Publication date Apr 5, 2012
- Infinera Corporation
- Kuang-Tsan Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

David F. Welch

Person

Patents Grantslast 30 patents

Frequency division multiple access optical subcarriers

Time division multiple access optical subcarriers

Subcarrier modulation with radio frequency (RF) IQ modulators

Subcarrier based data center network architecture

Frequency division multiple access optical subcarriers

Frequency division multiple access optical subcarriers

Network switches systems for optical communications networks

Frequency division multiple access optical subcarriers

Code division multiple access optical subcarriers

Frequency division multiple access optical subcarriers

Time division multiple access optical subcarriers

Frequency division multiple access optical subcarriers

Time division multiple access optical subcarriers

Code division multiple access optical subcarriers

Frequency division multiple access optical subcarriers

Subcarrier based data center network architecture

Frequency division multiple access optical subcarriers

Monolithic photonic integrated circuit (PIC) with a plurality of in...

Apparatus and method for tuning a laser source emission wavelength...

Optical communication system having low latency

Method of achieving acceptable performance in and fabrication of a...

Coolerless photonic integrated circuits (PICs) for WDM transmission...

Multiplexer and modulation arrangements for multi-carrier optical m...

Upsampling optical transmitter

Wavelength division multiplexed optical communication system having...

Communication network with skew compensation

Degradation adaptation network

Wavelength division multiplexed optical communication system archit...

Wavelength division multiplexed optical communication system having...

Transceiver photonic integrated circuit

Patents Applicationslast 30 patents

PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS

PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS

PHOTONIC INTEGRATED CIRCUIT INCLUDING SEMICONDUCTOR OPTICAL AMPLIFIERS

Subcarrier Based Data Center Network Architecture

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

SEPARATELY MANAGED NETWORK ENTITY WITH VIRTUALIZED TRANSPORT FUNCTION

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

Subcarrier Based Data Center Network Architecture

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

NETWORK SWITCHES SYSTEMS FOR OPTICAL COMMUNICATIONS NETWORKS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

FREQUENCY DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

CODE DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

CODE DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

TIME DIVISION MULTIPLE ACCESS OPTICAL SUBCARRIERS

SUBCARRIER MODULATION WITH RADIO FREQUENCY (RF) IQ MODULATORS

Subcarrier Based Data Center Network Architecture

USING EVENTS DATA

Multiplexer and Modulation Arrangements for Multi-Carrier Optical M...

WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING...

UPSAMPLING OPTICAL TRANSMITTER