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Digital Audio patents

      

This page is updated frequently with new Digital Audio-related patent applications.




 Improved frame loss correction with voice information patent thumbnailImproved frame loss correction with voice information
A method for processing a digital audio signal, including a series of samples distributed in consecutive frames, is implemented when decoding the signal in order to replace at least one signal frame lost during decoding. The method includes the following steps: a) searching, in a valid signal segment available when decoding, for at least one period in the signal, determined in accordance with the valid signal; b) analyzing the signal in the period, in order to determine spectral components of the signal in the period; c) synthesizing at least one frame for replacing the lost frame, by construction of a synthesis signal from: an addition of components selected among the predetermined spectral components, and a noise added to the addition of components.
Orange


 Electronic apparatus and housing support structure patent thumbnailElectronic apparatus and housing support structure
An electronic apparatus, such as a digital audio recorder, includes a housing. A plurality of foot pads are disposed on a lower housing surface of the housing, for supporting the housing on a placement surface.
Teac Corporation


 Acoustic processor having low latency patent thumbnailAcoustic processor having low latency
An audio system having low latency includes a digital audio processor as well as sensor inputs coupled to the processor. The sensor inputs may be microphone inputs.
Avnera Corporation


 System with wireless earphones patent thumbnailSystem with wireless earphones
Apparatus comprises adapter and speaker system. Adapter is configured to plug into port of personal digital audio player.
Koss Corporation


 Recording apparatus patent thumbnailRecording apparatus
In a recording system comprising a plurality of recording apparatuses connected in cascade to increase the number of audio channels, a desired audio signal can be monitored. In the recording apparatus, when a digital audio signal is input from a digital input terminal and an analog audio signal is input from an analog audio input terminal, the analog audio signal is converted to a digital signal, which is further embedded in the digital audio signal and output from an output terminal.
Teac Corporation


 Multipath digital microphones patent thumbnailMultipath digital microphones
Multipath digital microphone systems comprising a multipath digital audio combiner component are described. Exemplary multipath digital microphone systems can switch from conveying one digital audio signal to conveying another digital audio signal based on one or more switching criteria determined by an exemplary multipath digital audio combiner component.
Invensense, Inc.


 Multiband vehicular antenna assembly patent thumbnailMultiband vehicular antenna assembly
Exemplary embodiments are disclosed of multiband vehicular antenna assemblies with global navigation satellite system (gnss) capabilities. In exemplary embodiments, a multiband antenna assembly is operable with more than two satellite navigation system frequencies (e.g., global positioning system (gps), beidou navigation satellite system (bds), the russian global navigation satellite system (glonass), etc.).
Laird Technologies Shanghai Co., Ltd.


 Encoded audio metadata-based equalization patent thumbnailEncoded audio metadata-based equalization
A system for producing an encoded digital audio recording has an audio encoder that encodes a digital audio recording having a number of audio channels or audio objects. An equalization (eq) value generator produces a sequence of eq values which define eq filtering that is to be applied when decoding the encoded digital audio recording, wherein the eq filtering is to be applied to a group of one or more of the audio channels or audio objects of the recording independent of any downmix.
Apple Inc.


 Encoded audio extended metadata-based dynamic range control patent thumbnailEncoded audio extended metadata-based dynamic range control
An audio encoder encodes a digital audio recording having a number of audio channels or audio objects. A dynamic range control (drc) processor produces a sequence of encoder drc gain values, by applying a selected one of a number of drc characteristics to a group of one or more of the audio channels or audio objects.
Apple Inc.


 Audio broadcast recording device patent thumbnailAudio broadcast recording device
An audio broadcast recording device records live radio broadcasts. The device is similar in size and shape to a smartphone, with a large visual display occupying most of the front surface, and also provides a set of audio function buttons on its front surface which perform functions of recording, playing, fast forwarding, pausing, and rewinding, applied to radio broadcasts and podcasts.

Network amplifer in an audio video distribution system

The present disclosure describes a networked amplifier in an audio video distribution system that converts a digital audio signal to and from an analog audio signal used in a video and audio system that uses a tcp/ip lan (local area network) using tcp/ip as the communication protocol. The networked amplifier includes a network controller where the controller includes an embedded controller with a processor, memory, and storage functioning as a web server.
Netstreams, Llc

Adaptations of analysis or synthesis weighting windows for transform coding or decoding

A method and device are provided for coding or decoding a digital audio signal by transform using analysis or synthesis weighting windows applied to sample frames. The method includes an irregular sampling of an initial window provided for a transform of given initial size n, to apply a secondary transform of size m different from n..
Orange

Method for the synthetic generation of a digital audio signal

A method for the synthetic generation of a digital audio signal by means of periodic sampling of a waveform shall permit the user a particularly simple and intuitive access to the changing and creative transformation of the waveform on which the sampling is based. For this purpose, according to the invention, the waveform is specified by using control points, which, in addition to position parameters, may contain further attributes, of which the parameters and attributes can be changed individually over time by means of control signals or spontaneouseous intervention.
Jobomusic Ag

Audio processing device

Anav receiver 1 includes a detection circuit 4 that detects that a digital audio signal terminal is connected and supplies a detection signal, a dir 5 that converts an spdif signal into an i2s signal when the detection circuit 4 supplies the detection signal, a detection circuit 7 that detects that the i2s signal into which the dir5 convers is an audio signal indicating sound and supplies a detection signal, and a microcomputer 2 that activates the av receiver 1 when the detection circuit 7 supplies the detection signal.. .

Methods and apparatus to correct attribution errors and coverage bias for digital audio ratings

Methods, apparatus, systems and articles of manufacture to correct attribution errors and coverage bias for digital audio ratings are disclosed. An example method includes applying, by executing an instruction with a processor, a duration-based count matrix to first demographic data associated with collected impressions of digital audio to determine second demographic data, the duration-based count matrix being based on a misattribution adjustment matrix, applying, by executing an instruction with the processor, a coverage adjustment vector to the second demographic data to determine third demographic data, applying, by executing an instruction with the processor, a scaling factor to the third demographic data to determine fourth demographic data, and generating, by executing an instruction with the processor, ratings data at a daypart-level using the fourth demographic data, the ratings data associated with the digital audio..
The Nielsen Company (us), Llc

Single-use handheld diagnostic test device, and an associated testing biological and environmental test samples

In a single-use handheld diagnostic test device and an associated system and method, a biological and/or environmental test sample is received and reacted with reagents. The test device tests a single sample and includes a sensor to detect test data.
Fio Corporation

Single-use handheld diagnostic test device, and an associated testing biological and environmental test samples

In a single-use handheld diagnostic test device and an associated system and method, a biological and/or environmental test sample is received and reacted with reagents. The test device tests a single sample and includes a sensor to detect test data.
Fio Corporation

Loudspeaker protection

This application relates to methods and apparatus for loudspeaker protection. A loudspeaker protection system (100) receives a digital audio signal comprising a plurality of samples at an input node (in).
Cirrus Logic International Semiconductor Ltd.

Data transfer

This application relates to methods and apparatus for transfer of multiple digital data streams, especially of digital audio data over a single communications link such as a single wire. The application describes audio interface circuitry comprising a pulse-length-modulation (plm) modulator (204).
Cirrus Logic International Semiconductor Ltd.

Inter-device digital audio

A method for reconfiguring a bus device from a first configuration into a second configuration, wherein the second configuration is not visible to, and is not selectable by, an unauthorized host device that connects to the bus device through a peripheral port of the bus device is described. In the bus device, a received message transmitted by the authorized host device through the peripheral port of the bus device to which the authorized host device is connected is parsed and an instruction to reconfigure the bus device from the first configuration into the second configuration is detected.
Apple Inc.

Systems and methods for use in a vehicle for detecting external events

There is provided a vehicle comprising a microphone positioned to receive sounds originated from outside of the vehicle, an analog-to-digital converter configured to covert the sounds received by the microphone to digital audio signals, a memory storing a sound processing software and one or more known audios, and a hardware processor configured to execute the sound processing software. In one implementation the sound processing software performs comparing the digital audio signals with the one or more known audios stored in the memory, determining, in response to the comparing, a match between the digital audio signals and a first audio of the one or more known audios stored in the memory; and taking an action in response to the determining of the match between the digital audio signals and the first audio..
Karma Automotive, Llc

Television tuner device for processing digital audiovisual content

Embodiments of a device for receiving a digital terrestrial, cable, or satellite television signal are described herein. For example, a silicon tuner module may be configured to receive a digital terrestrial, cable, or satellite television signal and output a digital bitstream, the digital bitstream may include audio visual content in an encoded transport stream.
Bby Solutions, Inc.

Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems

Systems and methods for decoding block and concatenated codes are provided. These include advanced iterative decoding techniques based on belief propagation algorithms, with particular advantages when applied to codes having higher density parity check matrices such as iterative soft-input soft-output and list decoding of convolutional codes, reed-solomon codes and bch codes.
Ln2 Db, Llc

Method for preprocessing speech for digital audio quality improvement

Preprocessing speech signals from an indirect conduction microphone. One exemplary method preprocesses the speech signal in two stages.
Motorola Solutions, Inc.

Digital media album

A virtual or digital multimedia album. The digital album may include a collection of related media to provide virtually, what a traditional band album provides, and more.
Iboard Incorporated

Method and system for implementing a large area continuous coverage of programs in digital audio broadcasting

The present invention relates to a method and system for implementing a large area and continuous coverage of programs in a digital audio broadcasting, wherein, part of carrier frequencies are set as common carrier frequencies, and other carrier frequencies are set as service carrier frequencies; all of the common carrier frequencies are combined together to achieve a seamless coverage for the large area; a transmitting end transmits a common frequency point identifier and a program information list on the common carrier frequencies, and transmits digital broadcasting programs on the service carrier frequencies; a receiving end identifies the common carrier frequency based on the common frequency point identifier and receives the digital broadcasting program on the common carrier frequencies; for a specific program desired to be received, all the carrier frequencies on broadcasting of the program are searched based on the received program information list, and the carrier frequency with best signal quality is selected for receiving; during the reception process of the specific program, signal quality of other carrier frequency on broadcasting of the specific program is monitored, and when the signal quality of current receiving carrier frequency decreases, the program is continue to be received by switching to another carrier frequency with better signal quality. By using the method and system according to the present invention, it can be realized that programs can be continuously covered for a large area and received seamlessly..
Beijing Cri-tech Radio And Television Technologies Co., Ltd.

Systems and methods for dynamic audio processing

Systems and methods presented herein may provide for processing audio with increased loudness and dynamics. A first clock frequency associated with a digital audio file may be increased to a second clock frequency, which speeds up the playback of the audio.

Integrated audio amplification circuit with multi-functional external terminals

The present invention relates in one aspect to an audio amplification circuit comprising an input terminal for receipt of an input signal from a transducer. A signal processor is operatively coupled to the input terminal for receipt and processing of the input signal to generate a processed digital audio signal in accordance with a programmable configuration setting of the signal processor.
Invensense, Inc.

Audio signal amplification device

An audio signal amplification device of the disclosure includes: a delta-sigma modulation part configured to resample an input digital audio signal with a quantization number smaller than a quantization number of the digital audio signal; a pulse-width modulation part configured to convert an output signal from the delta-sigma modulation part into a pulse-width modulation signal which sets a gradation of the output signal in an amplitude direction at a gradation of a pulse width; a power amplification part configured to perform power amplification on an output signal from the pulse-width modulation part; a low-pass filter configured to diminish a component higher than a predetermined cutoff frequency, in an output signal from the power amplification part, and to output the resultant signal; and a correction processing part configured to generate a correction signal for correcting the digital audio signal. The correction processing part includes a switch configured to control coupling of the correction processing part to the low-pass filter.
Panasonic Intellectual Property Management Co., Ltd.

Server providing a quieter open space work environment

A server for providing a quieter environment in an open work space that has a plurality of work places used by a plurality of users comprises a processor configured to receive digital audio signals corresponding to ambient noises captured by microphones at the work places, compute average values that represent current noises at the work places, compute a threshold value that represents a current noise in a neighbourhood of a first work place as a function of p values that represent the current noises at p work places that are neighbors of the first work place, compare each digital audio signal with the threshold value, determine the digital audio signals that are greater than the threshold value to determine at least one work place that corresponds to a digital audio signal that is greater than the threshold value, and send a warning to a user of the determined at least one work place.. .
Alcatel Lucent

Audio circuit

A d/a converter converts digital audio data din into analog differential audio signals vp and vn. A differential to single-ended conversion circuit converts the differential audio signals vp and vn into a single-ended audio signal vse.
Rohm Co., Ltd.

Ofdm based broadcast communication system

Fdm based broadcast transmitter arrangement for transmitting a digital audio/video information signal, wherein an encoded version of the digital audio/video information signal is encapsulated in a network layer encapsulation step in accordance with dab, dvb-t or dvb-t2 to obtain a network layer information signal. The network layer information signal is then converted in a data link layer conversion step to obtain a data link layer information signal, which is subjected in a physical layer conversion step to obtain a broadcast information transmission signal..
Institut Fur Rundfunktechnik Gmbh

System and transmitting digital audio streams to attendees and recording video at public events

The present discloses an audio server that includes at least one memory device to store instructions and at least one processing device to execute the instructions stored in the least one memory device to convert audio sound waves from live event or concert into an audio signal, capture video of at least portions of the live event or the concert, generate an encoded stream by encrypting the audio signal and the captured video with a key, and in response to receiving purchase confirmation from a device, transmit the key to the device and stream the encoded stream to at least one device during the live event or concert. The device may decode the encoded stream using the key..

System and simulcasting digital audio streams to attendees at public events

The present discloses an audio server that includes at least one memory device to store instructions and at least one processing device to execute the instructions stored in the least one memory device to convert audio sound waves from live event or concert into an audio signal, generate an encoded stream by encrypting the audio signal with a key, and in response to receiving purchase confirmation from a device, transmit the key to the device and stream the encoded stream to at least one device during the live event or concert. The device may decode the encoded stream using the key..

Predictive trending of digital entities

Surfacing relevant and predictively trending digital entities to a user in a content feed is provided. Aspects of a predictive trending system use one or more predictive models, such as neural networks or regression models, to generate predictive trending scores of digital entities (e.g., documents, people, electronic communications, meetings, locations, digital images, digital videos, digital audio, etc.) based on historical scores and context.
Microsoft Technology Licensing, Llc.

Digital content distribution and subscription sysem

Digital content distribution systems and methods are provided for distributing for digital data files, such as digital audio and video data files. In accordance with one implementation, a token-based authentication system is provided that does not require knowledge of the individual user requesting the download of digital content data or real-time access to user account information.
Aol Inc.

Transition from a transform coding/decoding to a predictive coding/decoding

Methods and apparatus are provided for coding and decoding a digital audio signal. Decoding includes: decoding according to an inverse transform decoding of a previous frame of samples of the digital signal, which is received and coded according to a transform coding; and decoding according to a predictive decoding of a current frame of samples of the digital signal, which is received and coded according to a predictive coding.
Orange

Aromatherapy apparatus and housing

The present invention is an apparatus for employing aromatherapy and binaural sounds for inducing a state of relaxation in a user who may be anxious, upset, or experiencing sleeping difficulties. The apparatus comprises a shape memory foam pillow, a pair of stereo speakers, an aromatherapy diffuser, a pillowcase comprised of heat-transfer fabric, an optional vibrating device, a canopy and a housing to support these elements.

Multichip dynamic range enhancement (dre) audio processing methods and apparatuses

In accordance with embodiments of the present disclosure, a multichip circuit for processing audio signals having dynamic range enhancement information over two or more integrated circuits may include a host integrated circuit and a client integrated circuit. The host integrated circuit may be configured to determine a dynamic range enhancement gain for a digital audio input signal, process the digital audio input signal in accordance with the dynamic range enhancement gain, and transmit audio data based on the processed digital audio input signal.
Cirrus Logic, Inc.

Real-time wireless synchronization of live event audio stream with a video recording

Systems and methods are presented herein that facilitate temporally synchronizing, in real time, a separately sourced high quality audio segment of a live event with a video segment that is generated by a recording device associated with a member of the audience. An a-v synchronization application may synchronize a video segment of a live event that is generated from a personal electronic device of an audience member with a high quality audio segment that is separately sourced and generated by professional sound recording equipment at the live event.

Distributed media stream synchronization control

One or more system, apparatus, method, and computer readable media is described below for wireless display synchronization of audio and video data streams received through a direct wireless link between a content source and sink. In some embodiments, the presentation time stamp (pts) associated with the encoding of a digital audio and digital video data stream into a compressed packetized data stream at the source is utilized as a control point for synchronization of the digital audio and video stream payloads presented at the sink.
Intel Corporation

Replacing an encoded audio output signal

Replacement of an encoded audio output signal is disclosed. In one example, a data set comprising a first encoded audio output signal and associated pre-stored digital audio input signals captured with a microphone array of an apparatus is received.
Microsoft Technology Licensing, Llc

Playback based on wireless signal

Systems, methods, and apparatus to calibrate sounds fields are disclosed. An example implementation involves a playback device detecting a change in a strength of a wireless signal received by the playback device via a wireless network interface.
Sonos, Inc.

Audio processing device

A modular audio processing apparatus that joins channels together such that four digital audio channels can be transmitted over a single connection, where the apparatus includes housing around a plurality of analog inputs, a plurality of analog outputs, a plurality of digital inputs, and a plurality of digital outputs.. .

Method and processing a recording

A method and apparatus for processing a recording is described. Analogue audio data is recorded and converted into digital audio data.
Tencent Technology (shenzhen) Company Limited

Adjusting audio sampling used with wideband audio

A system and method of adjusting digital audio sampling used with wideband audio includes: performing audio sampling on an analog audio signal at an initial sampling rate and an initial bit rate over a wideband audio frequency range; generating a digital audio signal based on the audio sampling; detecting a qualitative error rate between the analog audio signal and the digital audio signal; and decreasing the initial sampling rate, the initial bit rate, or both for sampling subsequent analog audio when the qualitative error is below a threshold.. .
Gm Global Technology Operations Llc

Audio signal transient detection

Provided are, among other things, systems, methods and techniques for detecting whether a transient exists within an audio signal. According to one representative embodiment, a segment of a digital audio signal is divided into blocks, and a norm value is calculated for each of a number of the blocks, resulting in a set of norm values for such blocks, each such norm value representing a measure of signal strength within a corresponding block.
Digital Rise Technology Co., Ltd.

Remote controlled digital audio mixing system

An audio mixing system for providing an audio processing interface at a mobile device may include a mobile device including an interface configured to present a display screen to receive user input to control a remote audio mixer that is operably coupled to at least one musical instrument, transmit, via a wireless network, a mobile device command indicating an audio setting, the command being generated in response to user input, receive, via the wireless network and in response to the mobile device command, first mixer data indicative of audio settings of the remote audio mixer, and present an updated display screen, the updated display screen reflecting the first mixer data as a result of the mobile device command to present a real-time display of the audio settings of the remote audio mixer.. .
Harman International Industries Limited

Binaural rendering for headphones using metadata processing

Embodiments are described for a method of rendering audio for playback through headphones comprising receiving digital audio content, receiving binaural rendering metadata generated by an authoring tool processing the received digital audio content, receiving playback metadata generated by a playback device, and combining the binaural rendering metadata and playback metadata to optimize playback of the digital audio content through the headphones.. .
Dolby Laboratories Licensing Corporation

Device and method to mark digital audio or audio and/or video content

A receiver device having a processor, memories, descrambler and decoders modules configured to produce a sequence of elementary media content packets. The receiver device further comprises a marker unit configured to mark data in the sequence of elementary media content packets according to a pattern defined by an internal parameter associated to the receiving device.
Nagravision S.a.

Synchronizing a plurality of digital media streams by using a descriptor file

A method is provided in which a descriptor file is created for synchronizing a plurality of digital media streams. A plurality of time offsets are identified in a timeline of a digital audio narration of a first digital media stream, and the plurality of time offsets and a corresponding plurality of content points are stored in the descriptor file in a manner indicating a correlation therebetween.
Audio Pod Inc.



Digital Audio topics:
  • Digital Audio
  • Motor Module
  • Transmitter
  • Quantization
  • Signal Processing
  • Audio Signal Processing
  • Radio Transmission
  • Ion Source
  • Audio Signals
  • Navigation
  • Mobile Receiver
  • File Transfer
  • Transducer
  • Io Processor
  • Duty Cycle


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    This listing is a sample listing of patent applications related to Digital Audio for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Digital Audio with additional patents listed. Browse our RSS directory or Search for other possible listings.


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