James Joseph Croft

Person

Everett, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dynamic power sharing in a multi-channel sound system
- Patent number 8,588,428
- Issue date Nov 19, 2013
- LRAD Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic loudspeaker with a distributed filter
- Patent number 6,760,455
- Issue date Jul 6, 2004
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker system
- Patent number 6,704,426
- Issue date Mar 9, 2004
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for converting ocean wave motion to electricity
- Patent number 6,700,217
- Issue date Mar 2, 2004
- Vaughn W. North
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Signal derived bias supply for electrostatic loudspeakers
- Patent number 6,628,791
- Issue date Sep 30, 2003
- American Technology Corporation
- Jeevan G. Bank
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulator processing for a parametric speaker system
- Patent number 6,584,205
- Issue date Jun 24, 2003
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Parametric virtual speaker and surround-sound system
- Patent number 6,577,738
- Issue date Jun 10, 2003
- American Technology Corporation
- Elwood G. Norris
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electroacoustic transducer with diaphragm securing structure and me...
- Patent number 6,535,612
- Issue date Mar 18, 2003
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Paper structures for speaker transducers
- Patent number 6,393,129
- Issue date May 21, 2002
- American Technology Corporation
- Terry J. Conrad
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Acoustically asymmetric bandpass loudspeaker with multiple acoustic...
- Patent number 6,389,146
- Issue date May 14, 2002
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sonic emitter with foam stator
- Patent number 6,304,662
- Issue date Oct 16, 2001
- American Technology Corporation
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for developing a virtual speaker distant from the...
- Patent number 6,229,899
- Issue date May 8, 2001
- American Technology Corporation
- Elwood G. Norris
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Electrostatic transducer with nonplanar configured diaphragm
- Patent number 6,201,874
- Issue date Mar 13, 2001
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic speaker with foam stator
- Patent number 6,188,772
- Issue date Feb 13, 2001
- American Technology Corporation
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrostatic speaker with moveable diaphragm edges
- Patent number 6,175,636
- Issue date Jan 16, 2001
- American Technology Corporation
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bandpass loudspeaker system
- Patent number 6,169,811
- Issue date Jan 2, 2001
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loud speaker structure
- Patent number 5,748,759
- Issue date May 5, 1998
- Carver Corporation
- James Joseph Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio frequency power amplifiers
- Patent number 5,396,194
- Issue date Mar 7, 1995
- Carver Corporation
- Robert C. Williamson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dipole speaker for producing ambience sound
- Patent number 5,109,416
- Issue date Apr 28, 1992
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker diaphragm mounting system and method
- Patent number 4,803,733
- Issue date Feb 7, 1989
- Robert W. Carver
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
High intensity vehicle proximity acoustics
- Publication number 20080239876
- Publication date Oct 2, 2008
- AMERICAN TECHNOLOGY CORPORATION
- Elwood G. Norris
- G08 - SIGNALLING
Information Patent Application
Power amplification for parametric loudspeakers
- Publication number 20080175404
- Publication date Jul 24, 2008
- Jeevan G. Bank
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Dynamic power sharing in a multi-channel sound system
- Publication number 20080137872
- Publication date Jun 12, 2008
- AMERICAN TECHNOLOGY CORPORATION
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Directional acoustic device
- Publication number 20080129470
- Publication date Jun 5, 2008
- AMERICAN TECHNOLOGY CORPORATION
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Modulator processing for a parametric speaker system
- Publication number 20080063214
- Publication date Mar 13, 2008
- American Technology Corporation
- Michael E. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric Loudspeaker System And Method For Enabling Isolated List...
- Publication number 20070211574
- Publication date Sep 13, 2007
- James J Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Single-ended planar-magnetic speaker
- Publication number 20070127767
- Publication date Jun 7, 2007
- AMERICAN TECHNOLOGY CORPORATION
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Bandpass woofer enclosure with multiple acoustic filters
- Publication number 20070003076
- Publication date Jan 4, 2007
- AMERICAN TECHNOLOGY CORPORATION
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and method for delivering audio-visual content along a custo...
- Publication number 20060280315
- Publication date Dec 14, 2006
- AMERICAN TECHNOLOGY CORPORATION
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Horn array emitter
- Publication number 20060233404
- Publication date Oct 19, 2006
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Planar-magnetic speakers with secondary magnetic structure
- Publication number 20060050923
- Publication date Mar 9, 2006
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
High intensity directional electroacoustic sound generating system...
- Publication number 20050286346
- Publication date Dec 29, 2005
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric audio system for operation in a saturated air medium
- Publication number 20050281413
- Publication date Dec 22, 2005
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric loudspeaker with electro-acoustical diaphragm transducer
- Publication number 20050244016
- Publication date Nov 3, 2005
- American Technology Corporation
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric ring emitter
- Publication number 20050226438
- Publication date Oct 13, 2005
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Focused parametric array
- Publication number 20050195985
- Publication date Sep 8, 2005
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric sound system with lower sideband
- Publication number 20050185800
- Publication date Aug 25, 2005
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric transducer having an emitter film
- Publication number 20050100181
- Publication date May 12, 2005
- Particle Measuring Systems, Inc.
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric loudspeaker with improved phase characteristics
- Publication number 20050089176
- Publication date Apr 28, 2005
- American Technology Corporation
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for constructing a parametric transducer having an emitter film
- Publication number 20050084122
- Publication date Apr 21, 2005
- American Technology Corporation
- Mark Norris
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
Signal derived bias supply for electrostatic loudspeakers
- Publication number 20040066942
- Publication date Apr 8, 2004
- American Technology Corporation
- Jeevan G. Bank
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Piezoelectric film emitter configuration
- Publication number 20040052387
- Publication date Mar 18, 2004
- American Technology Corporation
- Mark Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric virtual speaker and surround-sound system
- Publication number 20030215103
- Publication date Nov 20, 2003
- Elwood G. Norris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Modulator processing for a parametric speaker system
- Publication number 20030185405
- Publication date Oct 2, 2003
- Michael E. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Biaxial parametric speaker
- Publication number 20030118198
- Publication date Jun 26, 2003
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dynamic carrier system for parametric arrays
- Publication number 20030091196
- Publication date May 15, 2003
- American Technology Corporation
- Michael E. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dynamic carrier system for parametric arrays
- Publication number 20030091203
- Publication date May 15, 2003
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Single-ended planar-magnetic speaker
- Publication number 20020191808
- Publication date Dec 19, 2002
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Parametric ring emitter
- Publication number 20020126854
- Publication date Sep 12, 2002
- American Technology Corporation
- Elwood G. Norris
- F41 - WEAPONS
Information Patent Application
Planar-magnetic speakers with secondary magnetic structure
- Publication number 20020118856
- Publication date Aug 29, 2002
- American Technology Corporation
- James J. Croft
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

James Joseph Croft

Person

Patents Grantslast 30 patents

Dynamic power sharing in a multi-channel sound system

Electrostatic loudspeaker with a distributed filter

Loudspeaker system

Apparatus for converting ocean wave motion to electricity

Signal derived bias supply for electrostatic loudspeakers

Modulator processing for a parametric speaker system

Parametric virtual speaker and surround-sound system

Electroacoustic transducer with diaphragm securing structure and me...

Paper structures for speaker transducers

Acoustically asymmetric bandpass loudspeaker with multiple acoustic...

Sonic emitter with foam stator

Method and device for developing a virtual speaker distant from the...

Electrostatic transducer with nonplanar configured diaphragm

Electrostatic speaker with foam stator

Electrostatic speaker with moveable diaphragm edges

Bandpass loudspeaker system

Loud speaker structure

Audio frequency power amplifiers

Dipole speaker for producing ambience sound

Loudspeaker diaphragm mounting system and method

Patents Applicationslast 30 patents

High intensity vehicle proximity acoustics

Power amplification for parametric loudspeakers

Dynamic power sharing in a multi-channel sound system

Directional acoustic device

Modulator processing for a parametric speaker system

Parametric Loudspeaker System And Method For Enabling Isolated List...

Single-ended planar-magnetic speaker

Bandpass woofer enclosure with multiple acoustic filters

System and method for delivering audio-visual content along a custo...

Horn array emitter

Planar-magnetic speakers with secondary magnetic structure

High intensity directional electroacoustic sound generating system...

Parametric audio system for operation in a saturated air medium

Parametric loudspeaker with electro-acoustical diaphragm transducer

Parametric ring emitter

Focused parametric array

Parametric sound system with lower sideband

Parametric transducer having an emitter film

Parametric loudspeaker with improved phase characteristics

Method for constructing a parametric transducer having an emitter film

Signal derived bias supply for electrostatic loudspeakers

Piezoelectric film emitter configuration

Parametric virtual speaker and surround-sound system

Modulator processing for a parametric speaker system

Biaxial parametric speaker

Dynamic carrier system for parametric arrays

Dynamic carrier system for parametric arrays

Single-ended planar-magnetic speaker

Parametric ring emitter

Planar-magnetic speakers with secondary magnetic structure