John E. DeRoo

Person

Hopkinton, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Linearization circuits and methods for multilevel power amplifier s...
- Patent number 10,658,981
- Issue date May 19, 2020
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Linearization circuits and methods for multilevel power amplifier s...
- Patent number 10,622,949
- Issue date Apr 14, 2020
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Linearization circuits and methods for multilevel power amplifier s...
- Patent number 10,164,577
- Issue date Dec 25, 2018
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
RF amplifier having a transition shaping filter
- Patent number 10,038,461
- Issue date Jul 31, 2018
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
RF amplifier having a transition shaping filter
- Patent number 9,490,752
- Issue date Nov 8, 2016
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Circuits for controlling display apparatus
- Patent number 9,239,457
- Issue date Jan 19, 2016
- Pixtronix, Inc.
- Stephen R. Lewis
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
RF amplifier having discrete supply voltages
- Patent number 9,209,758
- Issue date Dec 8, 2015
- ETA Devices, Inc.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for multilevel power amplification
- Patent number 9,172,336
- Issue date Oct 27, 2015
- Ela Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transmitter architecture and related methods
- Patent number 9,166,536
- Issue date Oct 20, 2015
- ETA Devices, Inc.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Linearization circuits and methods for multilevel power amplifier s...
- Patent number 9,160,287
- Issue date Oct 13, 2015
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
RF amplifier architecture and related techniques
- Patent number 9,020,453
- Issue date Apr 28, 2015
- ETA Devices, Inc.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Linearization circuits and methods for multilevel power amplifier s...
- Patent number 8,829,993
- Issue date Sep 9, 2014
- ETA Devices, Inc.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
RF amplifier architecture and related techniques
- Patent number 8,824,978
- Issue date Sep 2, 2014
- ETA Devices, Inc.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Stream based memory manager with function specific hardware logic f...
- Patent number 7,069,397
- Issue date Jun 27, 2006
- Sun Microsystems, Inc.
- John DeRoo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for accessing graphics cache memory
- Patent number 6,658,531
- Issue date Dec 2, 2003
- ATI International SRL
- Milivoje Aleksic
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for compressing parameter values for pixels in...
- Patent number 6,476,811
- Issue date Nov 5, 2002
- ATI International, SRL
- John E. DeRoo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for association of memory locations with a cac...
- Patent number 6,279,080
- Issue date Aug 21, 2001
- ATI International SRL
- John Edward DeRoo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for arbitrating access requests to a memory
- Patent number 6,182,196
- Issue date Jan 30, 2001
- ATI International SRL
- John E. DeRoo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for accessing graphics cache memory
- Patent number 6,173,367
- Issue date Jan 9, 2001
- ATI Technologies, Inc.
- Milivoje Aleksic
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
CELLULAR NETWORK HAVING ENERGY LOAD SHIFTING
- Publication number 20250208684
- Publication date Jun 26, 2025
- TalkingHeads Wireless, Inc.
- John E. DeRoo
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CELLULAR NETWORK HAVING ENERGY LOAD SHIFTING AND ALTERNATIVE ENERGY...
- Publication number 20240421598
- Publication date Dec 19, 2024
- TalkingHeads Wireless, Inc.
- John E. DeRoo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Linearization Circuits And Methods For Multilevel Power Amplifier S...
- Publication number 20190074797
- Publication date Mar 7, 2019
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RF Amplifier Having A Transition Shaping Filter
- Publication number 20170063407
- Publication date Mar 2, 2017
- ETA DEVICES, INC.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CIRCUITS FOR CONTROLLING DISPLAY APPARATUS
- Publication number 20160097926
- Publication date Apr 7, 2016
- Pixtronix, Inc.
- Stephen Lewis
- G02 - OPTICS
Information Patent Application
RF Amplifier Having A Transition Shaping Filter
- Publication number 20160065138
- Publication date Mar 3, 2016
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Linearization Circuits And Methods For Multilevel Power Amplifier S...
- Publication number 20150372646
- Publication date Dec 24, 2015
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RF Amplifier Having Discrete Supply Voltages
- Publication number 20150194940
- Publication date Jul 9, 2015
- ETA DEVICES, INC.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RF Amplifier Architecture and Related Techniques
- Publication number 20140335805
- Publication date Nov 13, 2014
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Linearization Circuits And Methods For Multilevel Power Amplifier S...
- Publication number 20140132354
- Publication date May 15, 2014
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RF Amplifier Architecture and Related Techniques
- Publication number 20140118063
- Publication date May 1, 2014
- ETA DEVICES, INC.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR MULTILEVEL POWER AMPLIFICATION
- Publication number 20140118072
- Publication date May 1, 2014
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Transmitter Architecture and Related Methods
- Publication number 20140120854
- Publication date May 1, 2014
- ETA DEVICES, INC.
- Mark A. Briffa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Linearization Circuits And Methods For Multilevel Power Amplifier S...
- Publication number 20140118065
- Publication date May 1, 2014
- ETA DEVICES, INC.
- Mark A. Briffa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CIRCUITS FOR CONTROLLING DISPLAY APPARATUS
- Publication number 20130176611
- Publication date Jul 11, 2013
- Pixtronix, Inc.
- Stephen Lewis
- G02 - OPTICS
Information Patent Application
Stream memory manager
- Publication number 20040210725
- Publication date Oct 21, 2004
- John DeRoo
- G06 - COMPUTING CALCULATING COUNTING

John E. DeRoo

Person

Patents Grantslast 30 patents

Linearization circuits and methods for multilevel power amplifier s...

Linearization circuits and methods for multilevel power amplifier s...

Linearization circuits and methods for multilevel power amplifier s...

RF amplifier having a transition shaping filter

RF amplifier having a transition shaping filter

Circuits for controlling display apparatus

RF amplifier having discrete supply voltages

Method and apparatus for multilevel power amplification

Transmitter architecture and related methods

Linearization circuits and methods for multilevel power amplifier s...

RF amplifier architecture and related techniques

Linearization circuits and methods for multilevel power amplifier s...

RF amplifier architecture and related techniques

Stream based memory manager with function specific hardware logic f...

Method and apparatus for accessing graphics cache memory

Method and apparatus for compressing parameter values for pixels in...

Method and apparatus for association of memory locations with a cac...

Method and apparatus for arbitrating access requests to a memory

Method and apparatus for accessing graphics cache memory

Patents Applicationslast 30 patents

CELLULAR NETWORK HAVING ENERGY LOAD SHIFTING

CELLULAR NETWORK HAVING ENERGY LOAD SHIFTING AND ALTERNATIVE ENERGY...

Linearization Circuits And Methods For Multilevel Power Amplifier S...

RF Amplifier Having A Transition Shaping Filter

CIRCUITS FOR CONTROLLING DISPLAY APPARATUS

RF Amplifier Having A Transition Shaping Filter

Linearization Circuits And Methods For Multilevel Power Amplifier S...

RF Amplifier Having Discrete Supply Voltages

RF Amplifier Architecture and Related Techniques

Linearization Circuits And Methods For Multilevel Power Amplifier S...

RF Amplifier Architecture and Related Techniques

METHOD AND APPARATUS FOR MULTILEVEL POWER AMPLIFICATION

Transmitter Architecture and Related Methods

Linearization Circuits And Methods For Multilevel Power Amplifier S...

CIRCUITS FOR CONTROLLING DISPLAY APPARATUS

Stream memory manager