D2Audio Corporation
Milpitas, CA, US· latest recorded location
D2Audio Corporation is named on 38 US grants and 25 published applications in this corpus. Its most frequent classification is H03F (Amplifiers).
- Granted patents
- 38
- Published applications
- 25
- Inventors
- 18
- Granted in 2026 so far
- 0
- Most recent grant
- 8 Oct 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 6 |
| 2005 | 0 | 0 |
| 2006 | 3 | 0 |
| 2007 | 4 | 7 |
| 2008 | 6 | 1 |
| 2009 | 6 | 9 |
| 2010 | 7 | 1 |
| 2011 | 4 | 1 |
| 2012 | 7 | 0 |
| 2013 | 1 | 0 |
By publication year.
Technology areas
Share of 63 documents
- H03FAmplifiers46
- G06FComputing and data processing12
- H03GControl of amplification12
- H04LDigital communication11
- H03KPulse technique9
- H03MCoding6
- H03HImpedance networks4
- G10LSpeech analysis techniques or speech synthesis2
- G11BInformation storage based on relative movement between record carrier and transducer2
Recent patents
- Systems and methods for over-current protection8 Oct 2013US RE44,525 E1
- Systems and methods for shadowing an HDA codec21 Aug 2012US 8,249,730 B2
- Systems and methods for controlling audio volume in the processor of a high definition audio codec17 Jul 2012US 8,224,469 B2
- Systems and methods for overriding hardwired responses in an HDA codec10 Jul 2012US 8,219,226 B2
- Systems and methods for controlling HDA system capabilities3 Jul 2012US 8,214,543 B2
- Systems and methods for controlling hda system capabilities15 Dec 2011US 2011/0305354 A1
- Systems and methods to minimize startup transients in class-d amplifiers11 Nov 2010US 2010/0284547 A1
- Low delay corrector10 Dec 2009US 2009/0302938 A1
- Systems and Methods to Minimize Startup Transients in Class D Amplifiers5 Mar 2009US 2009/0058549 A1
- Systems and Methods for Shadowing an HDA Codec5 Mar 2009US 2009/0060228 A1
Most cited
By later US patents
- Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal118US 7,649,410 B22010
- Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibility91US 7,167,112 B22007
- Integrated PULSHI mode with shutdown52US 7,078,963 B12006
- Digital PWM amplifier with simulation-based feedback47US 7,286,009 B22007
- Systems and methods for automatically adjusting channel timing38US 7,023,268 B12006