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Patent No. 5356330

Apparatus for Simulating a High Five

A self-righting hand-arm configuration which is adapted to pivot when struck by a user, thereby simulating a "high five."

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Assignee: D2Audio Corporation


Location: Milpitas, CA
No. of patents: 16

NumberTitleIssue Date
8115564Systems and methods to minimize startup transients in class-D amplifiers
Systems and methods for minimizing startup transients in digital audio controllers that may result in audible artifacts in the output of an audio amplification system. One embodiment comprises a digital PWM amplifier that includes a mechanism for controlling the amo...
02/14/2012
8082438Systems and methods for booting a codec processor over a high definition audio bus
Systems and methods for booting a programmable processor such as a DSP that is incorporated into an HDA codec. The codec and a system memory containing boot program instructions are connected to an HDA bus. In a first mode, the DSP receives boot program instructions...
12/20/2011
8028101Systems and methods for controlling HDA system capabilities
Systems and methods for controlling the capabilities of an High Definition Audio (HDA) system, wherein the system determines whether an optional component such as a plug-in card is connected to the system and then configures itself in a baseline configuration if the...
09/27/2011
7929718Systems and methods for switching and mixing signals in a multi-channel amplifier
Systems and methods for scaling the number of output channels that can be provided in an audio amplification system. In one embodiment, a digital pulse width modulation (PWM) amplification system includes multiple four-channel PWM controller chips that are interconn...
04/19/2011
7898336Ground skimming output stage
Ground skimming output stages that are designed to drive wideband signals with the ability to provide a high quality output signal all the way to the low supply rail are provided. In accordance with an embodiment of the present invention, the output stage of the pre...
03/01/2011
7812666Low delay corrector
A low delay corrector (LDC) unit includes a non-linear function generator and a filter. The nonlinear function generator receives a first signal and outputs a second signal in dependence on the first signal and a transfer function of the nonlinear function generator...
10/12/2010
7791427Systems and methods to minimize startup transients in class D amplifiers
Systems and methods for minimizing startup transients in digital audio controllers that may result in audible artifacts in the output of an audio amplification system. One embodiment comprises a digital PWM amplifier that includes a mechanism for controlling the amo...
09/07/2010
7738613Streaming multi-channel audio as packetized data or parallel data with a separate input frame sync
Systems and methods for converting a data stream from a first sample rate to a second sample rate, where the data is received in bursts. In one embodiment, a method includes receiving bursty audio data on a first input line and receiving synchronization data on a se...
06/15/2010
7729790Phase alignment of audio output data in a multi-channel configuration
Systems and methods for ensuring proper phase alignment of audio signals which are processed by separate hardware channels in an audio amplification system. In one embodiment, the phase alignment is controlled by determining the number of audio data samples which ar...
06/01/2010
7728658Low-noise, low-distortion digital PWM amplifier
Systems and methods for performance improvements in digital switching amplifiers using low-pass filtering to reduce noise and distortion. In one embodiment, a digital pulse width modulation (PWM) amplifier includes a signal processing plant configured to receive and...
06/01/2010
7706545Systems and methods for protection of audio amplifier circuits
Systems and methods for providing protection from failure events in a digital audio amplification system. One embodiment of the invention comprises a system having a digital amplifier controller, an amplifier output stage coupled to the controller and configured to ...
04/27/2010
7649410Systems and methods for improving performance in a digital amplifier by adding an ultrasonic signal to an input audio signal
Systems and methods in which an ultrasonic signal is introduced into an audio signal before the audio signal is amplified by a switching amplifier. The added ultrasonic signal (e.g., a tone at half the amplifier's switching frequency) shifts the signals input to a s...
01/19/2010
7590251Clip detection in PWM amplifier
Systems and methods for detecting clipping conditions in an audio signal and processing the signal to reduce the clipping conditions. In one embodiment, a system comprises a noise shaper, a modulator, an output stage and other components. A detector detects clipping...
09/15/2009
7584009Multi-chip PWM synchronization and communication
Systems and methods for synchronizing multiple digital audio controller chips, wherein one of the chips is designated as a master and the other chips are designated as slaves. A common line connects all of the chips and is used to transmit synchronization signals fr...
09/01/2009
7576606Digital PWM amplifier having a low delay corrector
Systems and methods for performance improvements in digital switching amplifiers using a low delay corrector. In one embodiment, a digital pulse width modulation (PWM) amplifier includes a signal processing plant configured to receive and process an input audio sign...
08/18/2009
7518444PWM feedback/feed-forward protection
Systems and methods for improving the stability of feedback and/or feed-forward subsystems in digital amplifiers. One embodiment comprises a digital pulse width modulation (PWM) controller. The controller includes an input for receiving a digital audio input signal ...
04/14/2009
 
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