D2AUDIO CORPORATION

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Details

Technologies

Intl Class Technology # of Patents Rank
 
 
 
H03F AMPLIFIERS 1755
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 9291
 
 
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 492
 
 
 
H03K PULSE TECHNIQUE 3103
 
 
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 3165
 
 
 
H03G CONTROL OF AMPLIFICATION 234
 
 
 
H04B TRANSMISSION 2162
 
 
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 168
 
 
 
H02B BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER 123
 
 
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 165

Top Patents (by citation)

Patent # Title Filing Date Issue Date Intl Class Cited #
7,167,112 Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibilityMar 20, 04Jan 23, 07[H03M]49
7,078,963 Integrated PULSHI mode with shutdownMar 19, 04Jul 18, 06[H03F]40
7,286,009 Digital PWM amplifier with simulation-based feedbackDec 30, 05Oct 23, 07[H03F]18
7,286,010 Systems and methods for over-current protectionJan 26, 06Oct 23, 07[H03F]6
7,929,718 Systems and methods for switching and mixing signals in a multi-channel amplifierMay 12, 04Apr 19, 11[H02B, H03F, H04R, G06F]5
7,482,865 Systems and methods for correcting errors resulting from component mismatch in a feedback pathFeb 07, 07Jan 27, 09[H03F]5
7,474,722 Systems and methods for sample rate conversion using multiple rate estimate countersMar 19, 04Jan 06, 09[H04L]5
7,023,268 Systems and methods for automatically adjusting channel timingMar 22, 04Apr 04, 06[H03F]5
7,728,658 Low-noise, low-distortion digital PWM amplifierJul 25, 07Jun 01, 10[H03F]4
7,576,606 Digital PWM amplifier having a low delay correctorJul 25, 07Aug 18, 09[H03F]4

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2011/0305,354 SYSTEMS AND METHODS FOR CONTROLLING HDA SYSTEM CAPABILITIESAug 25, 11Dec 15, 11[H03F]
2010/0284,547 SYSTEMS AND METHODS TO MINIMIZE STARTUP TRANSIENTS IN CLASS-D AMPLIFIERSJul 20, 10Nov 11, 10[H04B]
2009/0302,938 LOW DELAY CORRECTORAug 17, 09Dec 10, 09[H03G, H03F]
2009/0058,549 Systems and Methods to Minimize Startup Transients in Class D AmplifiersAug 30, 07Mar 05, 09[H03K]
2009/0060,228 Systems and Methods for Shadowing an HDA CodecSep 01, 08Mar 05, 09[H03F, G06F]
2009/0062,948 Systems and Methods for Controlling Audio Volume in the Processor of a High Definition Audio CodecSep 01, 08Mar 05, 09[G06F]
2009/0063,720 Systems and Methods for Controlling HDA System CapabilitiesSep 01, 08Mar 05, 09[H03F, G06F]
2009/0063,738 Systems and Methods for Overriding Hardwired Responses in an HDA CodecSep 01, 08Mar 05, 09[G06F]
2009/0063,828 Systems and Methods for Communication between a PC Application and the DSP in a HDA Audio CodecSep 01, 08Mar 05, 09[G06F]
2009/0063,843 Systems and Methods for Booting a Codec Processor over a High Definition Audio BusSep 01, 08Mar 05, 09[G06F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,249,730 Systems and methods for shadowing an HDA codecSep 01, 08Aug 21, 12[G06F]
8,224,469 Systems and methods for controlling audio volume in the processor of a high definition audio codecSep 01, 08Jul 17, 12[H03G, G06F]
8,219,226 Systems and methods for overriding hardwired responses in an HDA codecSep 01, 08Jul 10, 12[G06F]
8,214,543 Systems and methods for controlling HDA system capabilitiesAug 25, 11Jul 03, 12[G06F]
RE43489 Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibilityJan 23, 09Jun 26, 12[H03M]
RE43461 Systems and methods for load detection and correction in a digital amplifierAug 20, 09Jun 12, 12[G01R, H03F]
8,115,564 Systems and methods to minimize startup transients in class-D amplifiersJul 20, 10Feb 14, 12[H03K]
8,082,438 Systems and methods for booting a codec processor over a high definition audio busSep 01, 08Dec 20, 11[G06F, H05K, G10L]
8,028,101 Systems and methods for controlling HDA system capabilitiesSep 01, 08Sep 27, 11[G06F]
7,929,718 Systems and methods for switching and mixing signals in a multi-channel amplifierMay 12, 04Apr 19, 11[H02B, H03F, H04R, G06F]

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Top Inventors for This Owner

Inventor Name Address # of Patent/Pub
Andersen Jack B
Cedar Park, TX
34
Kost Michael A
Cedar Park, TX
27
Hand Larry E
Meridian, MS
24
Taylor Wilson E
Austin, TX
20
Chieng Daniel L W
Austin, TX
17
Gephardt Douglas D
Not Provided
14
Chieng Daniel L
Not Provided
9
Klaas Jeffrey M
Not Provided
9
Zaharias Adam
Not Provided
7
Craven Peter G
Not Provided
6