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Digital Audio

Digital Audio-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Self-contained tactical audio distribution device
Science Applications International Corporation
November 09, 2017 - N°20170324493

A tactical audio distribution device may include a housing. A plurality of connection jacks may be coupled to the housing. A plurality of microphone input signal connection points may be contained in the housing and may be in electrical communication with at least a portion of the connection jacks. At least one digital audio matrix processor may be contained in ...
System with wireless earphones
Science Applications International Corporation
November 02, 2017 - N°20170318378

Apparatus comprises adapter and speaker system. Adapter is configured to plug into port of personal digital audio player. Speaker system is in communication with adapter, and comprises multiple acoustic transducers, programmable processor circuit, and wireless communication circuit. In first operational mode, processor circuit receives, via adapter, and processes digital audio content from personal digital audio player into which adapter is ...
Simultaneously rendering a plurality of digital media streams in a synchronized manner by using a ...
Science Applications International Corporation
November 02, 2017 - N°20170318319

A plurality of digital media streams are synchronized by using a descriptor file. The plurality of digital media streams includes a first digital media stream containing a digital audio narration of an originating work and a second digital media stream containing digital media content corresponding to the same originating work. The descriptor file contains location information for the plurality of ...
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Apparatus and method for saving energy in an active loudspeaker
Genelec Oy
October 26, 2017 - N°20170311076

The invention relates to a method and apparatus for recognizing a digital audio signal in a system, in which at least some of the electronic components are at times in sleep or unenergized mode, in which method the digital audio signal is amplified and recognized, the amplified signal is decoded in a decoding circuit, the decoded signal is led to ...
Time-alignment measurement for hybrid hd radio tm technology
Genelec Oy
October 19, 2017 - N°20170302432

A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog ...
Mixing of single-bit and multi-bit audio signals for simultaneous output
Genelec Oy
October 19, 2017 - N°20170300290

An audio processor may process dissimilarly formatted digital audio signals and produce an analog output for reproduction by a transducer, such as a speaker. The audio processor may be, for example, a digital-to-analog converter (dac) with multiple digital inputs and a single analog output. The audio processor may also include other components, such as processing components, filters, equalizers, amplifiers, and ...
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Digital Audio Patent Applications
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Audio amplifier system
Nxp B.v.
October 12, 2017 - N°20170294888

An audio amplifier system is described comprising: a variable gain audio processor for processing digital audio signal, a digital to analog converter coupled to the audio processor, and configured to receive the processed digital audio signal, a variable gain amplifier having an input coupled to the output of the digital to analog converter and operably connected to a power supply, ...
Audio buffering continuity
International Business Machines Corporation
October 12, 2017 - N°20170293460

A method of audio buffering continuity which includes downloading by a client device a digital audio stream from a digital source; buffering by the client device the downloaded digital audio stream; playing the digital audio stream from the buffered digital audio stream; when the digital audio stream is interrupted such that there is a gap when the client device is ...
Method and apparatus for blending an audio signal in an in-band on-channel radio system
Ibiquity Digital Corporation
September 21, 2017 - N°20170272143

A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream ...
Systems and methods for simulation of mixing in air of recorded sounds
Amos Dm, Llc
September 14, 2017 - N°20170265015

A mixing signal processing technique modifies digital audio recordings to simulate the linear and nonlinear effects of propagation and mixing of sounds in air. When multiple sounds or complex sounds comprised of multiple frequencies in the audible spectrum propagate in such a nonlinear medium, they transfer energy into sound at new frequencies given by the sums and differences of the ...
Discrimination and attenuation of pre echoes in a digital audio signal
Orange
September 14, 2017 - N°20170263263

A method for discriminating and attenuating pre-echo in a digital audio signal and generated from transform coding. The method includes the following acts in which, for a current frame broken down into sub-blocks, the low-energy sub-blocks precede a sub-block in which a transition or attack is detected, and determine a pre-echo area in which a pre-echo attenuation process is carried ...
Secured audio channel for voice communication
Orange
September 14, 2017 - N°20170263261

A security device for hindering data theft and data leaks via audio channel of a computer system is based on passing the audio signals through a coding vocoder that receives input audio signal from a computer and compressing the signal to a low bit-rate digital data indicative of human speech; and a decoding vocoder that decompress the digital data back ...
Secured audio channel for voice communication
Orange
September 14, 2017 - N°20170263260

A security device for hindering data theft and data leaks via audio channel of a computer system is based on passing the audio signals through a coding vocoder that receives input audio signal from a computer and compressing the signal to a low bit-rate digital data indicative of human speech; and a decoding vocoder that decompress the digital data back ...
Digital Audio Patent Pack
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Digital Audio Patent Applications
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Methods and systems for positioning and controlling sound images in three-dimensional space
Fairlight.au Pty Ltd
September 14, 2017 - N°20170262075

A system for positioning and controlling sound images in three-dimensional space, comprising: a three-dimensional motion sensing input device; and a computer system incorporating a digital audio workstation application including a gesture library and one or more built-in features, the computer system being connected to the three-dimensional motion sensing input device by a communication link, wherein gestures that are pre-defined in ...
Low power synchronous data interface
Avnera Corporation
September 07, 2017 - N°20170257702

A low power, digital audio interface includes support for variable length coding depending on content of the audio data sent from the interface. A particularized coding system is implemented that uses techniques of silence detection, dynamic scaling, and periodic encoding to reduce sent data to a minimum. Other techniques include variable packet scaling based on an audio sample rate. Differential ...
Vehicle communication system for receiving frequency modulation and digital audio broadcast radio frequency bands
Gm Global Technology Operations Llc
September 07, 2017 - N°20170257179

An antenna system for a vehicle that includes at least one radio frequency (rf) antenna that receives both a digital audio broadcasting (dab) rf broadcast and a frequency modulation (fm) rf broadcast. A single amplifier coupled to one or more antennas is used to process both the dab and fm broadcasts.
Centralized media marketplace
Gm Global Technology Operations Llc
September 07, 2017 - N°20170255618

A centralized media marketplace system for data preservation, maintenance, collection, archiving and distributing digital audio and video media assets from one or more sources. The centralized media system having a media library, a metadata repository, and a syndication and pay-per-view marketplace for inputting, acquiring, managing and distributing media content over a wide area network. The system manages and distributes media ...
Wireless audio enabled household appliance
Ce Brands, Llc
September 07, 2017 - N°20170255444

The invention disclosed relates to systems for wirelessly communicating with a household appliance whereby a user is able to play audio through the household appliance. Embodiments of the related appliance apparatus include appliances, such as a coffee maker, that further include integral bluetooth communication, digital audio processing and amplification, as well as an integrated speaker for output of the processed ...
Dynamic dead time management
Qualcomm Incorporated
August 31, 2017 - N°20170250654

Certain aspects of the present disclosure provide methods and apparatus for dynamically managing the dead time between turning on output power stage transistors in amplifiers, such as audio amplifiers. One example method of operating an amplifier generally includes generating a drive signal based on an input signal; amplifying the drive signal by alternatively driving a first transistor and a second ...
Skateboard riser with integrated bluetooth speaker
Qualcomm Incorporated
August 17, 2017 - N°20170238124

A riser for a skateboard with an integrated bluetooth transceiver, the riser attaching between the deck and truck of the skateboard. Wireless transfer of information from device to device, such as between a mobile phone and the riser, is enabled. The output signal from the transceiver is coupled to a digital audio amplifier for providing an audio signal to persons ...
Self-configuration of a device implementing an ambient noise cancellation mechanism
France Brevets
August 17, 2017 - N°20170238084

A device has a standard female audio connector that is capable of receiving four-pole male connectors and three-pole male connectors and implements: means (ctrl, vcc, s1) for selectively transmitting a dc power supply signal via a first pin (dp1) of said connector; means (ctrl, anc) for selectively activating a cancellation mechanism for ambient noise from digital audio signals that are ...
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