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Patents Grants
last 30 patents
Information
Patent Grant
Transducer apparatus embodying non-audio sensors for noise-immunity
Patent number
11,647,330
Issue date
May 9, 2023
Audio Zoom Pte Ltd
Joseph Sylvester Chang
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Supply modulator, power amplifier having the same, method for contr...
Patent number
11,218,122
Issue date
Jan 4, 2022
Nanyang Technological University
Joseph Sylvester Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Transducer apparatus for high speech intelligibility in noisy envir...
Patent number
11,146,884
Issue date
Oct 12, 2021
Audio Zoom Pte Ltd
Joseph Sylvester Chang
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Amplifier circuit for a parametric transducer and a related audio d...
Patent number
10,757,506
Issue date
Aug 25, 2020
Nanyang Technological University
Joseph Sylvester Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of fabricating an electrical circuit assembly on a flexible...
Patent number
10,580,830
Issue date
Mar 3, 2020
Nanyang Technological University
Joseph Chang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of generating a pulse width modulation (PWM) signal for an a...
Patent number
10,044,326
Issue date
Aug 7, 2018
Nanyang Technological University
Joseph Sylvester Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Dead time circuit for a switching circuit and a switching amplifier
Patent number
9,866,188
Issue date
Jan 9, 2018
Nanyang Technological University
Joseph Sylvester Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Communications apparatus
Patent number
9,859,988
Issue date
Jan 2, 2018
Advanced Electroacoustics Private Limited
Joseph Sylvester Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
NON-ACOUSTIC SENSOR FOR ACTIVE NOISE CANCELLATION
Publication number
20230026002
Publication date
Jan 26, 2023
Audio Zoom Pte Ltd
Joseph Sylvester CHANG
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
TRANSDUCER APPARATUS: POSITIONING AND HIGH SIGNAL-TO-NOISE-RATIO MI...
Publication number
20220345814
Publication date
Oct 27, 2022
Audio Zoom Pte Ltd
Chai Lung LEE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSUCER APPARATUS EMBODYING NON-AUDIO SENSORS FOR NOISE-IMMUNITY
Publication number
20210314700
Publication date
Oct 7, 2021
Audio Zoom Pte Ltd
Joseph Sylvester CHANG
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
SUPPLY MODULATOR, POWER AMPLIFIER HAVING THE SAME, METHOD FOR CONTR...
Publication number
20210250002
Publication date
Aug 12, 2021
Nanyang Technological University
Joseph Sylvester CHANG
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TRANSDUCER APPARATUS FOR HIGH SPEECH INTELLIGIBILITY IN NOISY ENVIR...
Publication number
20200059717
Publication date
Feb 20, 2020
Audio Zoom Pte Ltd
Joseph Sylvester CHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
A METHOD OF FABRICATING AN ELECTRICAL CIRCUIT ASSEMBLY ON A FLEXIBL...
Publication number
20190305048
Publication date
Oct 3, 2019
Nanyang Technological University
Joseph CHANG
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AN AMPLIFIER CIRCUIT FOR A PARAMETRIC TRANSDUCER AND A RELATED AUDI...
Publication number
20170289684
Publication date
Oct 5, 2017
Nanyang Technological University
Joseph Sylvester Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SWITCH FILM
Publication number
20170194961
Publication date
Jul 6, 2017
Nanyang Technological University
Joseph Sylvester CHANG
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
A DEAD TIME CIRCUIT FOR A SWITCHING CIRCUIT AND A SWITCHING AMPLIFIER
Publication number
20170070200
Publication date
Mar 9, 2017
Nanyang Technological University
Joseph Sylvester Chang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD OF GENERATING A PULSE WIDTH MODULATION (PWM) SIGNAL FOR AN A...
Publication number
20160211809
Publication date
Jul 21, 2016
Nanyang Technological University
Joseph Sylvester Chang
G11 - INFORMATION STORAGE
Information
Patent Application
COMMUNICATIONS APPARATUS
Publication number
20140018016
Publication date
Jan 16, 2014
ADVANCED ELECTROACOUSTICS PRIVATE LIMITED
Joseph Sylvester Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER