Christopher Ludden

Person

Pittsford, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Device with biometric-gated display
- Patent number 11,409,852
- Issue date Aug 9, 2022
- IDEX Biometrics ASA
- Imre Knausz
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display driver
- Patent number 10,311,825
- Issue date Jun 4, 2019
- National Semiconductor Corporation
- Christopher Ludden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display guarding techniques
- Patent number 10,268,313
- Issue date Apr 23, 2019
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Flexible processing module for different integrated touch and displ...
- Patent number 10,133,419
- Issue date Nov 20, 2018
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matrix sensor for image touch sensing
- Patent number 10,088,951
- Issue date Oct 2, 2018
- Synaptics Incorporated
- Petr Shepelev
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-sensor touch integrated display driver configuration for capa...
- Patent number 10,067,626
- Issue date Sep 4, 2018
- Synaptics Incorporated
- Christopher A. Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Combining sensor electrodes in a matrix sensor
- Patent number 9,857,925
- Issue date Jan 2, 2018
- Synaptics Incorporated
- Stephen L. Morein
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-sensor touch integrated display driver configuration for capa...
- Patent number 9,791,990
- Issue date Oct 17, 2017
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matrix sensor for image touch sensing
- Patent number 9,778,790
- Issue date Oct 3, 2017
- Synaptics Incorporated
- Petr Shepelev
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matrix sensor for image touch sensing
- Patent number 9,760,212
- Issue date Sep 12, 2017
- SYNAPTICS INCORPORTED
- Petr Shepelev
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Reduction in latency between user input and visual feedback
- Patent number 9,703,411
- Issue date Jul 11, 2017
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Voltage level shifter
- Patent number 9,621,135
- Issue date Apr 11, 2017
- Atmel Corporation
- Murat Ozbas
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Distributed blanking for touch optimization
- Patent number 9,576,557
- Issue date Feb 21, 2017
- Synaptics Incorporated
- Jeffrey S. Lillie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Capacitive sensing using a matrix electrode pattern
- Patent number 9,552,089
- Issue date Jan 24, 2017
- Synaptics Incorporated
- Jeffrey Lukanc
- G02 - OPTICS
Information Patent Grant
Capacitive sensing using matrix electrodes driven by routing traces...
- Patent number 9,542,023
- Issue date Jan 10, 2017
- Synaptics Incorporated
- Jeffrey Lukanc
- G02 - OPTICS
Information Patent Grant
Display guarding techniques
- Patent number 9,465,482
- Issue date Oct 11, 2016
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Capacitive sensor driving technique that enables hybrid sensing or...
- Patent number 9,459,367
- Issue date Oct 4, 2016
- Synaptics Incorporated
- Christopher A. Ludden
- G01 - MEASURING TESTING
Information Patent Grant
Synchronizing a switched power supply
- Patent number 9,304,625
- Issue date Apr 5, 2016
- Synaptics Incorporated
- Imre Knausz
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mitigation of display update noise using proximately disposed coupl...
- Patent number 9,298,314
- Issue date Mar 29, 2016
- Synaptics Incorporated
- Imre Knausz
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-sensor touch integrated display driver configuration for capa...
- Patent number 9,298,299
- Issue date Mar 29, 2016
- Synaptics Incorporated
- Christopher A. Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Processing system for a capacitive sensing device
- Patent number 9,298,325
- Issue date Mar 29, 2016
- Synaptics Incorporated
- Petr Shepelev
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Disabling display lines during input sensing periods
- Patent number 9,280,231
- Issue date Mar 8, 2016
- Synaptics Incorporated
- Jeffrey A. Small
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display driver
- Patent number 9,264,682
- Issue date Feb 16, 2016
- National Semiconductor Corporation
- Christopher Ludden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed blanking for touch optimization
- Patent number 9,041,685
- Issue date May 26, 2015
- Synaptics Incorpoated
- Jeffrey Lillie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display guarding techniques
- Patent number 9,007,343
- Issue date Apr 14, 2015
- Synaptics Incorporated
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matrix sensor for image touch sensing
- Patent number 8,970,537
- Issue date Mar 3, 2015
- Synaptics Incorporated
- Petr Shepelev
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Display system with frame buffer and power saving sequence
- Patent number 8,416,173
- Issue date Apr 9, 2013
- National Semiconductor Corporation
- Christopher A. Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Video display driver with data enable learning
- Patent number 8,072,394
- Issue date Dec 6, 2011
- National Semiconductor Corporation
- Christopher A. Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Apparatus and method for ambient light compensation for backlight c...
- Patent number 7,843,422
- Issue date Nov 30, 2010
- National Semiconductor Corporation
- Christopher A. Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Display system with framestore and stochastic dithering
- Patent number 7,268,790
- Issue date Sep 11, 2007
- National Semiconductor Corporation
- Jeffrey A. Small
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Device With Biometric-Gated Display
- Publication number 20210034834
- Publication date Feb 4, 2021
- IDEX Biometrics ASA
- Thomas A. Mackin
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Device With Biometric-Gated Display
- Publication number 20210034726
- Publication date Feb 4, 2021
- IDEX Biometrics ASA
- Imre Knausz
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...
- Publication number 20180004327
- Publication date Jan 4, 2018
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPLAY GUARDING TECHNIQUES
- Publication number 20160364081
- Publication date Dec 15, 2016
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G02 - OPTICS
Information Patent Application
MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...
- Publication number 20160195961
- Publication date Jul 7, 2016
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPLAY DRIVER
- Publication number 20160163277
- Publication date Jun 9, 2016
- TEXAS INSTRUMENTS INCORPORATED
- Christopher Ludden
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
COMBINING SENSOR ELECTRODES IN A MATRIX SENSOR
- Publication number 20160092000
- Publication date Mar 31, 2016
- SYNAPTICS INCORPORATED
- Stephen L. MOREIN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPENSATING FOR SOURCE LINE INTERFERENCE
- Publication number 20150309612
- Publication date Oct 29, 2015
- SYNAPTICS INCORPORATED
- Stephen L. MOREIN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INPUT SENSING USING A GATE SELECT LINE OF A DISPLAY DEVICE
- Publication number 20150309613
- Publication date Oct 29, 2015
- SYNAPTICS INCORPORATED
- Stephen L. MOREIN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MATRIX SENSOR FOR IMAGE TOUCH SENSING
- Publication number 20150293642
- Publication date Oct 15, 2015
- SYNAPTICS INCORPORATED
- Petr SHEPELEV
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MATRIX SENSOR FOR IMAGE TOUCH SENSING
- Publication number 20150293643
- Publication date Oct 15, 2015
- SYNAPTICS INCORPORATED
- Petr SHEPELEV
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MATRIX SENSOR FOR IMAGE TOUCH SENSING
- Publication number 20150286330
- Publication date Oct 8, 2015
- SYNAPTICS INCORPORATED
- Petr SHEPELEV
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FLEXIBLE PROCESSING MODULE FOR DIFFERENT INTEGRATED TOUCH AND DISPL...
- Publication number 20150268759
- Publication date Sep 24, 2015
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CAPACITIVE SENSOR DRIVING TECHNIQUE THAT ENABLES HYBRID SENSING OR...
- Publication number 20150226871
- Publication date Aug 13, 2015
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G01 - MEASURING TESTING
Information Patent Application
DISPLAY NOISE CANCELLATION
- Publication number 20150220206
- Publication date Aug 6, 2015
- SYNAPTICS INCORPORATED
- Imre KNAUSZ
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPLAY GUARDING TECHNIQUES
- Publication number 20150193082
- Publication date Jul 9, 2015
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISTRIBUTED BLANKING FOR TOUCH OPTIMIZATION
- Publication number 20150123944
- Publication date May 7, 2015
- SYNAPTICS INCORPORATED
- Jeffrey S. LILLIE
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MATRIX SENSOR FOR IMAGE TOUCH SENSING
- Publication number 20150091842
- Publication date Apr 2, 2015
- SYNAPTICS INCORPORATED
- Petr SHEPELEV
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPLAY GUARDING TECHNIQUES
- Publication number 20150091843
- Publication date Apr 2, 2015
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MATRIX SENSOR FOR IMAGE TOUCH SENSING
- Publication number 20150091587
- Publication date Apr 2, 2015
- SYNAPTICS INCORPORATED
- Petr SHEPELEV
- G01 - MEASURING TESTING
Information Patent Application
MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...
- Publication number 20150091849
- Publication date Apr 2, 2015
- SYNAPTICS INCORPORATED
- Christopher A. LUDDEN
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN
- Publication number 20150042599
- Publication date Feb 12, 2015
- SYNAPTICS INCORPORATED
- Jeffrey LUKANC
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN
- Publication number 20150042600
- Publication date Feb 12, 2015
- SYNAPTICS INCORPORATED
- Jeffrey LUKANC
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYNCHRONIZING A SWITCHED POWER SUPPLY
- Publication number 20150002407
- Publication date Jan 1, 2015
- Synaptics Incoroporated
- Imre KNAUSZ
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
FULLY ADDRESSABLE TRANSMITTER ELECTRODE CONTROL
- Publication number 20140002410
- Publication date Jan 2, 2014
- SYNAPTICS INCORPORATED
- Jeffrey Lillie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISABLING DISPLAY LINES DURING INPUT SENSING PERIODS
- Publication number 20130342481
- Publication date Dec 26, 2013
- Jeffrey A. SMALL
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISTRIBUTED BLANKING FOR TOUCH OPTIMIZATION
- Publication number 20130057512
- Publication date Mar 7, 2013
- SYNAPTICS INCORPORATED
- Jeffrey Lillie
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISPLAY DRIVER
- Publication number 20130021229
- Publication date Jan 24, 2013
- National Semiconductor Corporation
- Christopher Ludden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REDUCTION IN LATENCY BETWEEN USER INPUT AND VISUAL FEEDBACK
- Publication number 20100277505
- Publication date Nov 4, 2010
- Christopher A. Ludden
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VIDEO DISPLAY DRIVER WITH GAMMA CONTROL
- Publication number 20080303767
- Publication date Dec 11, 2008
- National Semiconductor Corporation
- Christopher Ludden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Christopher Ludden

Person

Patents Grantslast 30 patents

Device with biometric-gated display

Display driver

Display guarding techniques

Flexible processing module for different integrated touch and displ...

Matrix sensor for image touch sensing

Multi-sensor touch integrated display driver configuration for capa...

Combining sensor electrodes in a matrix sensor

Multi-sensor touch integrated display driver configuration for capa...

Matrix sensor for image touch sensing

Matrix sensor for image touch sensing

Reduction in latency between user input and visual feedback

Voltage level shifter

Distributed blanking for touch optimization

Capacitive sensing using a matrix electrode pattern

Capacitive sensing using matrix electrodes driven by routing traces...

Display guarding techniques

Capacitive sensor driving technique that enables hybrid sensing or...

Synchronizing a switched power supply

Mitigation of display update noise using proximately disposed coupl...

Multi-sensor touch integrated display driver configuration for capa...

Processing system for a capacitive sensing device

Disabling display lines during input sensing periods

Display driver

Distributed blanking for touch optimization

Display guarding techniques

Matrix sensor for image touch sensing

Display system with frame buffer and power saving sequence

Video display driver with data enable learning

Apparatus and method for ambient light compensation for backlight c...

Display system with framestore and stochastic dithering

Patents Applicationslast 30 patents

Device With Biometric-Gated Display

Device With Biometric-Gated Display

MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...

DISPLAY GUARDING TECHNIQUES

MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...

DISPLAY DRIVER

COMBINING SENSOR ELECTRODES IN A MATRIX SENSOR

COMPENSATING FOR SOURCE LINE INTERFERENCE

INPUT SENSING USING A GATE SELECT LINE OF A DISPLAY DEVICE

MATRIX SENSOR FOR IMAGE TOUCH SENSING

MATRIX SENSOR FOR IMAGE TOUCH SENSING

MATRIX SENSOR FOR IMAGE TOUCH SENSING

FLEXIBLE PROCESSING MODULE FOR DIFFERENT INTEGRATED TOUCH AND DISPL...

CAPACITIVE SENSOR DRIVING TECHNIQUE THAT ENABLES HYBRID SENSING OR...

DISPLAY NOISE CANCELLATION

DISPLAY GUARDING TECHNIQUES

DISTRIBUTED BLANKING FOR TOUCH OPTIMIZATION

MATRIX SENSOR FOR IMAGE TOUCH SENSING

DISPLAY GUARDING TECHNIQUES

MATRIX SENSOR FOR IMAGE TOUCH SENSING

MULTI-SENSOR TOUCH INTEGRATED DISPLAY DRIVER CONFIGURATION FOR CAPA...

CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN

CAPACITIVE SENSING USING A MATRIX ELECTRODE PATTERN

SYNCHRONIZING A SWITCHED POWER SUPPLY

FULLY ADDRESSABLE TRANSMITTER ELECTRODE CONTROL

DISABLING DISPLAY LINES DURING INPUT SENSING PERIODS

DISTRIBUTED BLANKING FOR TOUCH OPTIMIZATION

DISPLAY DRIVER

REDUCTION IN LATENCY BETWEEN USER INPUT AND VISUAL FEEDBACK

VIDEO DISPLAY DRIVER WITH GAMMA CONTROL