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D2AUDIO CORP

Overview
  • Total Patents
    71
About

D2AUDIO CORP has a total of 71 patent applications. Its first patent ever was published in 2004. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets basic communication technologies, computer technology and digital networks are JONES DAVID E, PARAGON COMM LTD and PULSEWAVE RF INC.

Patent filings in countries

World map showing D2AUDIO CORPs patent filings in countries

Patent filings per year

Chart showing D2AUDIO CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Andersen Jack B 47
#2 Hand Larry E 36
#3 Kost Michael A 30
#4 Taylor Wilson E 28
#5 Chieng Daniel L W 27
#6 Gephardt Douglas D 19
#7 Klaas Jeffrey M 12
#8 Chieng Daniel L 12
#9 Zaharias Adam 9
#10 Craven Peter G 8

Latest patents

Publication Filing date Title
EP2188710A1 Systems and methods for controlling hda system capabilities
WO2009029916A1 Systems and methods for controlling audio volume in the processor of a high definition audio codec
WO2009029919A1 Systems and methods for shadowing an hda codec
CN101802775A Systems and methods for communication between a PC application and the DSP in an HDA audio codec
TW200912658A Systems and methods for booting a codec processor over a high definition audio bus
US2009058549A1 Systems and methods to minimize startup transients in class D amplifiers
US2009027117A1 Low-noise, low-distortion digital PWM amplifier
US2009027118A1 Digital PWM amplifier having a low delay corrector
US2007216478A1 Systems and methods for maintaining minimum pulse width during shutdown
US2008278230A1 Systems and methods for correcting errors resulting from component mismatch in a feedback path
CN101379698A System and method for improving stability of feedback/feed-forward system in figure amplifier
US2007194845A1 Power supply feed forward analog input filter component mismatch correction
US2007176815A1 Systems and methods for minimizing delay in a control path
US2007176660A1 Systems and methods for pulse width modulating asymmetric signal levels
US2007170984A1 Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal
US2007182486A1 Systems and methods for over-current protection
US2007164885A1 Systems and methods for controlling transient response in the output of a noise shaper
US2007152750A1 Digital PWM amplifier with simulation-based feedback
US2007057720A1 Systems and methods for load detection and correction in a digital amplifier
US7929718B1 Systems and methods for switching and mixing signals in a multi-channel amplifier