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Searching: audio signal





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Patent # Description
US-7,970,564 Enhancement techniques for blind source separation (BSS)
This disclosure describes signal processing techniques that can improve the performance of blind source separation (BSS) techniques. In particular, the...
US-7,970,391 Managing availability status in a communications network
A system and a method are disclosed for a presence engine and a method of operating a presence engine for encoding or decoding availability status into a signal...
US-7,970,342 Digital music player accessory with digital communication capability
An accessory for a digital music player establishes bidirectional communications between the digital music player and a remote receiver. The bidirectional...
US-7,970,153 Audio output apparatus
An audio output apparatus has a measuring circuit which measures the levels of at least two sound signals, a sound level adjusting module (a sound level...
US-7,970,147 Video game controller with noise canceling logic
A method for reducing noise disturbance associated with an audio signal received through a microphone is provided. The method initiates with magnifying a noise...
US-7,970,144 Extracting and modifying a panned source for enhancement and upmix of audio signals
Modifying a panned source in an audio signal comprising a plurality of channel signals is disclosed. Portions associated with the panned source are identified...
US-7,970,072 Method and apparatus for processing a signal
The present invention relates to a method and apparatus for processing a signal. An object of the present invention devised to solve the problem lies on a...
US-7,970,049 Method and apparatus for encoding video in conjunction with a host processor
An external video device includes inputs for receiving an audio video signal from a source. The device includes in one enclosure audio and video processor...
US-7,970,019 Low latency digital audio over packet switched networks
Method and Apparatus for delivering audio signals from a source node to a destination node on a network. The apparatus uses a number of switches that transmit...
US-7,970,016 Systems and methods for transmission and reception of data including frequency and channel code selection
Systems and methods are disclosed for wireless transmission and reception of data including processing and buffering features. According to one or more...
US-7,969,472 Automatic camera steering control and video conferencing
An automatic camera steering control for directing video conferences including a communicator with a microphone and a voice activated LED emitter. Cameras...
US-7,969,287 Haptic effect control system
A haptic effect control system includes: a user interface adapted to receive a user-provided input and transmit a control signal representing the user-provided...
US-7,966,641 User identification using Bluetooth and audio ranging
In certain embodiments, a method of automatically changing an attribute defining operation of a television system involves determining that a short range radio...
US-7,966,190 Apparatus and method for processing an audio signal using linear prediction
In one embodiment, a channel in a frame of the audio signal is subdivided into a plurality of blocks, and at least two of the blocks have different lengths. An...
US-7,966,189 Wearable computer system and modes of operating the system
A wearable computer system has a user interface with at least an audio-only mode of operating, and that is natural in appearance and facilitates natural...
US-7,966,175 Fast lattice vector quantization
Methods, devices, and systems for coding and decoding audio are disclosed. Digital samples of an audio signal are transformed from the time domain to the...
US-7,966,045 WLAN communications system
A wireless local area network audio and video communication system with mobile units is provided, wherein mobile units are operated in a power saving mode and...
US-7,966,038 Wireless audio transfer system, wireless microphone, audio transmitting apparatus, audio receiving apparatus,...
Disclosed is a wireless audio transfer system. The wireless audio transfer system includes an audio transmitting apparatus including a microphone and a...
US-7,965,920 Video and audio recording device
A video and audio recording device includes: a storage, adapted to store condensed information; a specifier, operable to specify the condensed information...
US-7,965,854 Band-limited adaptive feedback canceller for hearing aids
An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a...
US-7,965,853 Band-limited adaptive feedback canceller for hearing aids
An improved method for adaptively cancelling acoustic feedback in hearing aids and other audio amplification devices. Feedback cancellation is limited to a...
US-7,965,852 Audio signal processing method and apparatus
In case of carrying out a correction process with respect to a signal of a specific frequency band in an inputted audio signal, an output level is raised...
US-7,965,849 Multichannel spectral mapping audio apparatus and method
A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel...
US-7,965,524 Method and apparatus to reduce audio frequencies in a switching power supply
A controller for use in a power supply regulator is disclosed. One controller includes a feedback circuit coupled to generate a feedback current signal that...
US-7,965,141 Class D audio amplifier
A class D amplifier (1) comprises an input unit (11) for receiving a digital input signal (Vin), a pulse shaping unit (12) for producing pulse shaped signals in...
US-7,963,807 Audio jack connector
Provided is an audio jack connector, including an insulating housing and a plurality of contacts. The insulating housing disposes a plurality of ...
US-7,963,717 Quick change locking coupler with condition sensor
A first tooling component is positively secured to a second tooling component by one or more quick change locking couplers each including a cylinder secured to...
US-7,962,855 Method of displaying an audio and/or video signal in a graphical user interface (GUI)
The present invention relates to a method of manipulating an audio and/or video signal in a graphical user interface (GUI). An audio and/or video signal...
US-7,962,835 Method and apparatus to update parameter of error frame
In a method and apparatus to conceal an error in an audio signal, when the current frame has no error and a past frame input prior to the current frame has an...
US-7,962,740 Method and apparatus for synchronizing audio and video in encrypted videoconferences
The invention provides a system that preserves the synchronization of the audio and video presented at a secure conferencing site without necessitating...
US-7,962,668 USB audio controller
A USB audio controller includes a USB interface unit, an audio interface unit, a storage interface unit, and a processing unit. The USB interface unit is used...
US-7,962,335 Robust decoder
Techniques and tools related to delayed or lost coded audio information are described. For example, a concealment technique for one or more missing frames is...
US-7,962,333 Method for high quality audio transcoding
A method and apparatus for a voice transcoder that converts a bitstream representing frames of data encoded according to a first voice compression standard to a...
US-7,962,332 Apparatus and method of encoding and decoding audio signal
In one embodiment, the method includes receiving an audio data frame having at least first and second channels. The first and second channels are independently...
US-7,962,330 Apparatus and method for automatic dissection of segmented audio signals
An apparatus for automatic dissection of segmented audio signals, wherein at least one information signal for identifying programs included in said audio...
US-7,962,090 Method and apparatus for satellite digital audio
A method and apparatus are provided for a first controlled device, such as a wireless local transmitter that accepts a plurality of digital audio signals and...
US-7,961,949 Extracting multiple identifiers from audio and video content
The disclosure concerns content identification, such as extracting identifying information from content itself. One combination described in the disclosure is a...
US-7,961,895 Audio interface device and method
The invention provides an audio interface device and method to acquire audio signal from either an analog or digital microphone through a common connector. The...
US-7,961,892 Apparatus and method for monitoring speaker cone displacement in an audio speaker
An apparatus for monitoring speaker cone displacement in an audio speaker includes: (a) an electromagnetic coil structure; (b) a ferrous core structure; the...
US-7,961,891 System and method of audio testing of acoustic devices
A system and method of testing the audio performance of an acoustic device is provided. To test a device microphone, an audio signal is generated, provided to...
US-7,961,890 Multi-channel hierarchical audio coding with compact side information
A parametric representation of a multi-channel audio signal describes the spatial properties of the audio signal well with compact side information when a...
US-7,961,889 Apparatus and method for processing multi-channel audio signal using space information
An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a...
US-7,961,888 Method and system for enhancing bass effect in audio signals
The quality of music output from audio systems is improved by simulating the effect of low frequency signals in the human ear. This thus allows listeners to...
US-7,961,881 Apparatus and methods for including codes in audio signals
Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency...
US-7,961,792 Robust system for maintaining audio/video synchronization during playback of multimedia streams with no...
An apparatus having a first circuit, a second circuit and a third circuit. The first circuit may be configured to (i) demultiplex a multimedia stream having one...
US-7,961,571 Recording a digital signal on an information carrier comprising a first layer and a second layer
A recording method, particularly suitable for use in a digital video-camera, is described according to which a digital signal (10), deriving from the encoding...
US-7,961,255 Television functionality on a chip
A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is...
US-7,960,640 Derivation of control signals from real-time overtone measurements
A system for control signal generation using detected dynamic characteristics of components of an incoming electronic signal. Fixed or adjustable bandpass...
US-7,957,977 Media program identification method and apparatus based on audio watermarking
The invention provides a method for obtaining related information about a media program containing an audio signal, comprising: embedding an audio watermark...
US-7,957,973 Audio signal interpolation method and device
An audio signal interpolation device comprises a spectral movement calculation unit which determines a spectral movement which is indicative of a difference in...
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