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Joseph O. Norris
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Ramona, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Parametric loudspeaker with improved phase characteristics
Patent number
8,199,931
Issue date
Jun 12, 2012
American Technology Corporation
Elwood G. Norris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modulator processing for a parametric speaker system
Patent number
7,729,498
Issue date
Jun 1, 2010
American Technology Corporation
Michael E. Spencer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Piezoelectric film sonic emitter
Patent number
7,376,236
Issue date
May 20, 2008
American Technology Corporation
Joseph O. Norris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for playback of pre-encoded signals through a parametric lou...
Patent number
7,343,017
Issue date
Mar 11, 2008
American Technology Corporation
Joseph O. Norris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modulator processing for a parametric speaker system
Patent number
7,162,042
Issue date
Jan 9, 2007
American Technology Corporation
Michael E. Spencer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Parametric loudspeaker with improved phase characteristics
Patent number
6,850,623
Issue date
Feb 1, 2005
American Technology Corporation
Elwood G. Norris
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
Patents Applications
last 30 patents
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 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
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
System for playback of pre-encoded signals through a parametric lou...
Publication number
20020111795
Publication date
Aug 15, 2002
Joseph O. Norris
H04 - ELECTRIC COMMUNICATION TECHNIQUE