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Nathan A. Johanningsmeier
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San Jose, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Data bus driver with electrical energy dump
Patent number
11,455,265
Issue date
Sep 27, 2022
Apple Inc.
Roderick B. Hogan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data bus driver with electrical energy dump
Patent number
10,963,410
Issue date
Mar 30, 2021
Apple Inc.
Roderick B. Hogan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Increased output impedance switching amplifier and low-side recycle...
Patent number
10,666,209
Issue date
May 26, 2020
Apple Inc.
Roderick B. Hogan
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electrical power converter and detachable energy storage reservoir
Patent number
10,283,989
Issue date
May 7, 2019
Apple Inc.
Roderick B. Hogan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Interference-insensitive capacitive displacement sensing
Patent number
10,254,134
Issue date
Apr 9, 2019
Apple Inc.
Roderick B. Hogan
G01 - MEASURING TESTING
Information
Patent Grant
Digital transducer circuit
Patent number
10,212,500
Issue date
Feb 19, 2019
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time-division multiplexed data bus interface
Patent number
10,146,732
Issue date
Dec 4, 2018
Apple Inc.
Girault W. Jones
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Sensor assembly for measuring diaphragm displacement and temperatur...
Patent number
9,967,664
Issue date
May 8, 2018
Apple Inc.
Yang Boon Quek
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Grounding circuit for alternate audio plug designs
Patent number
9,854,355
Issue date
Dec 26, 2017
Apple Inc.
Roderick B. Hogan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Charge pump-based split-rail supply generation
Patent number
9,847,713
Issue date
Dec 19, 2017
Apple Inc.
David C. Breece
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Reuse of plug detection contacts to reduce crosstalk
Patent number
9,793,658
Issue date
Oct 17, 2017
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio apparatus having dynamic ground break resistance
Patent number
9,729,964
Issue date
Aug 8, 2017
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Creation of sub-sample delays in digital audio
Patent number
9,699,558
Issue date
Jul 4, 2017
Apple Inc.
Girault W. Jones
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Main logic board with mounted speaker and integrated acoustic cavity
Patent number
9,654,863
Issue date
May 16, 2017
Apple Inc.
Justin D Crosby
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-channel audio system having a shared current sense element fo...
Patent number
9,332,343
Issue date
May 3, 2016
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Class D amplifier with variable switching frequency
Patent number
9,263,992
Issue date
Feb 16, 2016
Apple Inc.
David C. Breece
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi-channel audio system having a shared current sense element fo...
Patent number
9,247,345
Issue date
Jan 26, 2016
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio power amplification with reduced input power supply crest factor
Patent number
9,231,543
Issue date
Jan 5, 2016
Apple Inc.
Roderick Hogan
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Grounding circuit for alternate audio plug designs
Patent number
9,148,718
Issue date
Sep 29, 2015
Apple Inc.
David C. Breece
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Increasing ground noise rejection in audio systems
Patent number
9,099,967
Issue date
Aug 4, 2015
Apple Inc.
David C. Breece
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Magnetically biased electromagnet for audio applications
Patent number
8,942,410
Issue date
Jan 27, 2015
Apple Inc.
Christopher R. Wilk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electronic devices with improved audio
Patent number
8,644,519
Issue date
Feb 4, 2014
Apple Inc.
Aleksandar Pance
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
DATA BUS DRIVER WITH ELECTRICAL ENERGY DUMP
Publication number
20210182226
Publication date
Jun 17, 2021
Apple Inc.
Roderick B. Hogan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INCREASED OUTPUT IMPEDANCE SWITCHING AMPLIFIER AND LOW-SIDE RECYCLE...
Publication number
20200106406
Publication date
Apr 2, 2020
Apple Inc.
Roderick B. Hogan
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Data Bus Driver
Publication number
20190347229
Publication date
Nov 14, 2019
Apple Inc.
Roderick B. Hogan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Digital Transducer Circuit
Publication number
20180220214
Publication date
Aug 2, 2018
Apple Inc.
Roderick B. Hogan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Interference-Insensitive Capacitive Displacement Sensing
Publication number
20180038834
Publication date
Feb 8, 2018
Apple Inc.
Roderick B. Hogan
G01 - MEASURING TESTING
Information
Patent Application
CHARGE PUMP-BASED SPLIT-RAIL SUPPLY GENERATION
Publication number
20170271983
Publication date
Sep 21, 2017
Apple Inc.
David C. Breece
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MAIN LOGIC BOARD WITH MOUNTED SPEAKER AND INTEGRATED ACOUSTIC CAVITY
Publication number
20160165327
Publication date
Jun 9, 2016
Apple Inc.
Justin D. Crosby
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUDIO APPARATUS HAVING DYNAMIC GROUND BREAK RESISTANCE
Publication number
20150382104
Publication date
Dec 31, 2015
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
REUSE OF PLUG DETECTION CONTACTS TO REDUCE CROSSTALK
Publication number
20150349464
Publication date
Dec 3, 2015
Apple Inc.
Roderick B. Hogan
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MULTI-CHANNEL AUDIO SYSTEM HAVING A SHARED CURRENT SENSE ELEMENT FO...
Publication number
20150296292
Publication date
Oct 15, 2015
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTI-CHANNEL AUDIO SYSTEM HAVING A SHARED CURRENT SENSE ELEMENT FO...
Publication number
20150296293
Publication date
Oct 15, 2015
Apple Inc.
Roderick B. Hogan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
GROUNDING CIRCUIT FOR ALTERNATE AUDIO PLUG DESIGNS
Publication number
20150249876
Publication date
Sep 3, 2015
Apple Inc.
Roderick B. Hogan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
AUDIO POWER AMPLIFICATION WITH REDUCED INPUT POWER SUPPLY CREST FACTOR
Publication number
20150200640
Publication date
Jul 16, 2015
Apple Inc.
RODERICK HOGAN
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TIME-DIVISION MULTIPLEXED DATA BUS INTERFACE
Publication number
20140207983
Publication date
Jul 24, 2014
Apple Inc.
Girault W. Jones
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MAGNETICALLY BIASED ELECTROMAGNET FOR AUDIO APPLICATIONS
Publication number
20140185859
Publication date
Jul 3, 2014
Apple Inc.
Christopher R. Wilk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CREATION OF SUB-SAMPLE DELAYS IN DIGITAL AUDIO
Publication number
20140161279
Publication date
Jun 12, 2014
Apple Inc.
Girault W. Jones
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SIMPLIFIED LED MODULES FOR ELECTRICAL AND OPTICAL AUDIO JACKS
Publication number
20140113492
Publication date
Apr 24, 2014
Joshua Funamura
G02 - OPTICS
Information
Patent Application
INCREASING GROUND NOISE REJECTION IN AUDIO SYSTEMS
Publication number
20140093103
Publication date
Apr 3, 2014
Apple Inc.
David C. Breece
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
GROUNDING CIRCUIT FOR ALTERNATE AUDIO PLUG DESIGNS
Publication number
20130329916
Publication date
Dec 12, 2013
Apple Inc.
David C. Breece
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ELECTRONIC DEVICES WITH IMPROVED AUDIO
Publication number
20120082317
Publication date
Apr 5, 2012
Apple Inc.
Aleksandar Pance
H04 - ELECTRIC COMMUNICATION TECHNIQUE