Doug Farrar

Person

Los Altos, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic device accessory
- Patent number 9,680,980
- Issue date Jun 13, 2017
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device circuitry for communicating with accessories
- Patent number 8,995,689
- Issue date Mar 31, 2015
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device circuitry for communicating with accessories
- Patent number 8,983,093
- Issue date Mar 17, 2015
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Accessory adapter with user input interface
- Patent number 8,976,976
- Issue date Mar 10, 2015
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods for using an accessory to communicate with an electronic de...
- Patent number 8,891,790
- Issue date Nov 18, 2014
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for providing device-to-device handshaking thro...
- Patent number 8,812,883
- Issue date Aug 19, 2014
- Apple Inc.
- Doug Farrar
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Systems and methods for providing protection circuitry to selective...
- Patent number 8,648,501
- Issue date Feb 11, 2014
- Apple Inc.
- Rishabh Bhargava
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods for communicating with electronic device accessories
- Patent number 8,600,080
- Issue date Dec 3, 2013
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable power source to provide power to an electronic device via...
- Patent number 8,581,449
- Issue date Nov 12, 2013
- Apple Inc.
- David John Tupman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mode switching noise cancellation for microphone-speaker combinatio...
- Patent number 8,369,534
- Issue date Feb 5, 2013
- Apple Inc.
- Timothy M. Johnson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for providing device-to-device handshaking thro...
- Patent number 8,332,664
- Issue date Dec 11, 2012
- Apple Inc.
- Doug Farrar
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Electronic device and external equipment with configurable audio pa...
- Patent number 8,254,592
- Issue date Aug 28, 2012
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mode switching noise cancellation for microphone-speaker combinatio...
- Patent number 8,150,058
- Issue date Apr 3, 2012
- Apple Inc.
- Timothy M. Johnson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device accessory
- Patent number 7,869,608
- Issue date Jan 11, 2011
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable power source to provide power to an electronic device via...
- Patent number 7,816,811
- Issue date Oct 19, 2010
- Apple Inc.
- David John Tupman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Communications circuits for electronic devices and accessories
- Patent number 7,769,187
- Issue date Aug 3, 2010
- Apple Inc.
- Douglas M. Farrar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods of calibrating tone-based communications systems
- Patent number 7,627,128
- Issue date Dec 1, 2009
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device accessory with ultrasonic tone generator
- Patent number 7,623,667
- Issue date Nov 24, 2009
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Portable power source to provide power to an electronic device via...
- Patent number 7,525,216
- Issue date Apr 28, 2009
- Apple Inc.
- David John Tupman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Circuits and methods for amplifying signals
- Patent number 7,408,403
- Issue date Aug 5, 2008
- Apple Inc.
- Douglas M. Farrar
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signaling of power modes over an interface bus
- Patent number 6,256,682
- Issue date Jul 3, 2001
- Apple Computer, Inc.
- Kenneth F. Gudan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for multiplexing control signals over data signal...
- Patent number 5,995,633
- Issue date Nov 30, 1999
- Apple Computer, Inc.
- Richard D. Cappels
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for a speaker for a personal computer for sele...
- Patent number 5,910,991
- Issue date Jun 8, 1999
- Apple Computer, Inc.
- Douglas M. Farrar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Methods and apparatus for microphone preamplification
- Patent number 5,357,214
- Issue date Oct 18, 1994
- Apple Computer, Inc.
- Lawrence F. Heyl
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dsack clamp
- Patent number 5,309,565
- Issue date May 3, 1994
- Apple Computer, Inc.
- Robert Hollyer
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRONIC DEVICE ACCESSORY
- Publication number 20150208159
- Publication date Jul 23, 2015
- Apple Inc.
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEMS AND METHODS FOR PROVIDING DEVICE-TO-DEVICE HANDSHAKING THRO...
- Publication number 20140351622
- Publication date Nov 27, 2014
- Doug Farrar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVE...
- Publication number 20130200726
- Publication date Aug 8, 2013
- Apple Inc.
- Rishabh Bhargava
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SYSTEMS AND METHODS FOR PROVIDING DEVICE-TO-DEVICE HANDSHAKING THRO...
- Publication number 20130013940
- Publication date Jan 10, 2013
- Apple Inc.
- Doug Farrar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MODE SWITCHING NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIO...
- Publication number 20120183159
- Publication date Jul 19, 2012
- Apple Inc.
- Timothy M. Johnson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MODE SWITCHING NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIO...
- Publication number 20110033060
- Publication date Feb 10, 2011
- Apple Inc.
- Timothy M. Johnson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PORTABLE POWER SOURCE TO PROVIDE POWER TO AN ELECTRONIC DEVICE VIA...
- Publication number 20100327664
- Publication date Dec 30, 2010
- Apple Inc.
- David John Tupman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
ELECTRONIC DEVICE AND EXTERNAL EQUIPMENT WITH CONFIGURABLE AUDIO PA...
- Publication number 20100260362
- Publication date Oct 14, 2010
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVE...
- Publication number 20100225176
- Publication date Sep 9, 2010
- Apple Inc.
- Rishabh Bhargava
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PORTABLE POWER SOURCE TO PROVIDE POWER TO AN ELECTRONIC DEVICE VIA...
- Publication number 20090189460
- Publication date Jul 30, 2009
- Apple Inc.
- David John Tupman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
ACCESSORY ADAPTER WITH USER INPUT INTERFACE
- Publication number 20090180642
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE ACCESSORY WITH ULTRASONIC TONE GENERATOR
- Publication number 20090180659
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS FOR COMMUNICATING WITH ELECTRONIC DEVICE ACCESSORIES
- Publication number 20090180354
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS OF CALIBRATING TONE-BASED COMMUNICATIONS SYSTEMS
- Publication number 20090180629
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE CIRCUITRY FOR COMMUNICATING WITH ACCESSORIES
- Publication number 20090180630
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE ACCESSORY
- Publication number 20090179768
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS FOR USING AN ACCESSORY TO COMMUNICATE WITH AN ELECTRONIC DE...
- Publication number 20090180353
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRONIC DEVICE CIRCUITRY FOR COMMUNICATING WITH ACCESSORIES
- Publication number 20090180643
- Publication date Jul 16, 2009
- Wendell B. Sander
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Systems and methods for providing device-to-device handshaking thro...
- Publication number 20080309313
- Publication date Dec 18, 2008
- Apple Inc.
- Doug Farrar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Circuits and methods for amplifying signals
- Publication number 20070257732
- Publication date Nov 8, 2007
- Douglas M. Farrar
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Portable power source to provide power to an electronic device via...
- Publication number 20060152084
- Publication date Jul 13, 2006
- David John Tupman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Doug Farrar

Person

Patents Grantslast 30 patents

Electronic device accessory

Electronic device circuitry for communicating with accessories

Electronic device circuitry for communicating with accessories

Accessory adapter with user input interface

Methods for using an accessory to communicate with an electronic de...

Systems and methods for providing device-to-device handshaking thro...

Systems and methods for providing protection circuitry to selective...

Methods for communicating with electronic device accessories

Portable power source to provide power to an electronic device via...

Mode switching noise cancellation for microphone-speaker combinatio...

Systems and methods for providing device-to-device handshaking thro...

Electronic device and external equipment with configurable audio pa...

Mode switching noise cancellation for microphone-speaker combinatio...

Electronic device accessory

Portable power source to provide power to an electronic device via...

Communications circuits for electronic devices and accessories

Methods of calibrating tone-based communications systems

Electronic device accessory with ultrasonic tone generator

Portable power source to provide power to an electronic device via...

Circuits and methods for amplifying signals

Signaling of power modes over an interface bus

System and method for multiplexing control signals over data signal...

Method and apparatus for a speaker for a personal computer for sele...

Methods and apparatus for microphone preamplification

Dsack clamp

Patents Applicationslast 30 patents

ELECTRONIC DEVICE ACCESSORY

SYSTEMS AND METHODS FOR PROVIDING DEVICE-TO-DEVICE HANDSHAKING THRO...

SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVE...

SYSTEMS AND METHODS FOR PROVIDING DEVICE-TO-DEVICE HANDSHAKING THRO...

MODE SWITCHING NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIO...

MODE SWITCHING NOISE CANCELLATION FOR MICROPHONE-SPEAKER COMBINATIO...

PORTABLE POWER SOURCE TO PROVIDE POWER TO AN ELECTRONIC DEVICE VIA...

ELECTRONIC DEVICE AND EXTERNAL EQUIPMENT WITH CONFIGURABLE AUDIO PA...

SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVE...

PORTABLE POWER SOURCE TO PROVIDE POWER TO AN ELECTRONIC DEVICE VIA...

ACCESSORY ADAPTER WITH USER INPUT INTERFACE

ELECTRONIC DEVICE ACCESSORY WITH ULTRASONIC TONE GENERATOR

METHODS FOR COMMUNICATING WITH ELECTRONIC DEVICE ACCESSORIES

METHODS OF CALIBRATING TONE-BASED COMMUNICATIONS SYSTEMS

ELECTRONIC DEVICE CIRCUITRY FOR COMMUNICATING WITH ACCESSORIES

ELECTRONIC DEVICE ACCESSORY

METHODS FOR USING AN ACCESSORY TO COMMUNICATE WITH AN ELECTRONIC DE...

ELECTRONIC DEVICE CIRCUITRY FOR COMMUNICATING WITH ACCESSORIES

Systems and methods for providing device-to-device handshaking thro...

Circuits and methods for amplifying signals

Portable power source to provide power to an electronic device via...