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Searching: audio signal





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Patent # Description
US-8,046,217 Geometric calculation of absolute phases for parametric stereo decoding
An audio decoder which reproduces original signals from a bit stream including (i) a downmix signal of the original signals, and (ii) supplementary information...
US-8,046,215 Method and apparatus to detect voice activity by adding a random signal
A method and apparatus to detect voice activity by using a zero-crossing rate includes removing noise included in an audio signal, adding a random signal having...
US-8,046,214 Low complexity decoder for complex transform coding of multi-channel sound
A multi-channel audio decoder provides a reduced complexity processing to reconstruct multi-channel audio from an encoded bitstream in which the multi-channel...
US-8,046,094 Audio reproducing apparatus
An audio reproducing apparatus includes: a decoding module configured to perform a decoding process on a digital broadcast signal demodulated by a demodulating...
US-8,046,093 System and method for enhanced streaming audio
A system and method for enhancement and management of streaming audio is disclosed. In one embodiment, the system provides a client-side decoder that is...
US-8,046,092 Apparatus and method of encoding and decoding audio signal
In one embodiment, the method includes receiving the audio signal having configuration information and multi-channels, and reading a first indicator from the...
US-8,046,040 Pulse oximetry data confidence indicator
According to some embodiments of the present invention, a display is used to show an indication of the signal's quality. This indication of the signal's quality...
US-8,045,921 Audio delivery system and method for mobile phone
A wireless audio delivery system and method are disclosed for distributing an audio signal to a plurality of headsets through short range wireless communication...
US-8,045,919 Electromagnetic/acoustic underwater communications system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data...
US-8,045,840 Video-audio recording apparatus and method, and video-audio reproducing apparatus and method
A video-audio recording and reproducing apparatus (101) has a built-in stereo microphone (21a, 21b) and an external microphone connection terminal (32). The...
US-8,045,730 Methods and systems for reducing acoustic echoes in communication systems
Various embodiments of the present invention are directed to methods and systems that reduce acoustic echoes in audio signals in accordance with changing...
US-8,045,728 Conference audio system
It is possible to shorten a delay time from utterance to output from a speaker even in a conference audio system including an automatic mute release device. An...
US-8,045,726 Noise-cancelling headphone
A noise-cancelling headphone includes a cancel signal generator that receives ambient noise via an electro-acoustic transducer and generates and outputs a...
US-8,045,725 Vehicle interior active noise cancellation
A vehicle has an electric drive mode, a body defining a vehicle interior, a first and second set of audio speakers positioned outside and inside of the...
US-8,045,721 Dynamic distortion elimination for output audio
A method (200) for improving quality of output audio (126). The method can include detecting an output acoustic signal (128) and generating a receive audio...
US-8,045,720 Method for dynamic determination of time constants, method for level detection, method for compressing an...
The invention provides a method for dynamic determination of time constants to be used in a detection of the signal level of an input signal of unknown level in...
US-8,045,719 Rendering center channel audio
An audio upmixer, such as a two-channel to three-channel upmixer, employs a difference in a measure of sound at the ears of a listener in accordance with first...
US-8,044,778 Injection device and case with reporting ability
A container for a product uses a location circuit for determining the location of the container, a storage element for storing a container identification code,...
US-8,044,707 VDD/5 or VDD/6 charge-pump
Systems and methods to achieve a charge pump for generating from single supply voltage energy efficient supply voltages having a value of .+-.1/6 Vdd, .+-.1/5...
US-8,042,049 User interface for multi-device control
A control server, or similar central processor, manages the distribution of data (including audio and video), voice, and control signals among a plurality of...
US-8,041,577 Method for expanding audio signal bandwidth
A method expands a bandwidth of an audio signal by determining a magnitude time-frequency representation |G(.omega., t) for example audio signals g(t). A set of...
US-8,041,563 Apparatus for coding a wideband audio signal and a method for coding a wideband audio signal
Activity is determined for each frequency band in a frame, and when it is determined that an activity-OFF state has not continued for a predetermined number of...
US-8,041,562 Constrained and controlled decoding after packet loss
A technique is described herein for reducing audible artifacts in an audio output signal generated by decoding a received frame in a series of frames...
US-8,041,540 System, device, and method for acoustic and visual monitoring of a wind turbine
A method for monitoring a wind turbine. A monitoring signal, including an audio signal and/or an image signal, is received from a monitoring device. Operating...
US-8,041,438 Data-driven media management within an electronic device
A method and apparatus for intelligently routing and managing audio signals within an electronic device is disclosed. The routing is responsive to a set of...
US-8,041,180 Hardware apparatus and method having video/audio encoding and multiplexing functionality
The apparatus includes a video signal acquisition device, an audio signal acquisition device, a time information processing device, a video signal encoding...
US-8,041,073 Decoding watermark information items of a watermarked audio or video signal using correlation
Watermark information consists of several data symbols which are embedded continuously in an audio or a video signal using modulation with a pseudo-random...
US-8,041,072 Audio output apparatus and method
An audio output apparatus for converting an input audio signal into audio and outputting the audio includes a first oscillation enhancing panel for outputting...
US-8,041,066 Wireless system for hearing communication devices providing wireless stereo reception modes
The present subject matter relates to the wireless stereo reception of first and second audio information by wireless hearing communication devices. One type of...
US-8,041,062 Personal sound system including multi-mode ear level module with priority logic
A personal sound system is described that includes a wireless network supporting an ear-level module, a companion module and a phone. Other audio sources are...
US-8,041,061 Dipole and monopole surround sound speaker system
A speaker system utilizes dipole speaker drivers in conjunction with monopole speaker drivers in a listening area to disperse a surround sound effect to a...
US-8,041,058 Audio processing with time advanced inserted payload signal
Audio processing apparatus in which a payload signal is inserted into a primary audio signal comprises a noise generator operable to generate a noise signal in...
US-8,041,057 Mixing techniques for mixing audio
This disclosure describes audio mixing techniques that intelligently combine two or more audio signals into an output signal. The techniques allow audio to be...
US-8,041,055 Method and apparatus for automatically adjusting reminder volume on a mobile communication device
A method and apparatus for automatically adjusting volume of an audio signal on a mobile device, comprising playing the audio signal at an initial volume,...
US-8,041,052 Circuit for priority selection of audio signals
An audio selection circuit. The audio selection circuit includes a control/switch circuit having a first input, a second input, and a first output, and a signal...
US-8,041,043 Processing microphone generated signals to generate surround sound
Surround sound recording is a tedious task requiring the use of many microphones. The invention aims at enabling the use of two-channel microphones (or stereo...
US-8,041,041 Method and system for providing stereo-channel based multi-channel audio coding
A system for generating stereo-channel audio signals with surround information is disclosed. The system includes a surround mapping unit configured to receive...
US-8,041,040 Sound image control apparatus and sound image control method
A sound image control apparatus and sound image control method capable of increasing the accuracy, in particular, in the distance direction while keeping fixed...
US-8,041,028 Double-talk detection
Within audio telecommunications for audio-visual conferencing a means of reliable double-talk detection is required for several reasons, including control of...
US-8,041,026 Event driven noise cancellation
Systems and methods for noise cancellation are provided. In particular, information regarding events associated with a computer providing a telephony function...
US-8,040,691 In-wall video/audio signal adapter device
An in-wall video/audio signal adapter device including a first adapter and a second adapter. The first adapter includes a transmitter unit fixed on a mount. The...
US-8,040,436 Device and method for modifying video image of display apparatus
A method for modifying a video image of a display apparatus, the method including dividing received broadcast signals into a video signal, an audio signal, and...
US-8,038,629 Digital endotracheal tube sound acquisition and localization device
An apparatus and method for determining proper endotreachal placement is disclosed. The apparatus includes an audio receiver having a body, a microphone mount...
US-RE42,846 Close-loop class-D audio amplifier and control method thereof
The present invention discloses a Class-D power amplifier and control method thereof. In one embodiment, the amplifier feeds back the signal at the output node...
US-8,037,339 Security device intended to be connected to a processing unit for an audio/video signal and process using such...
Example embodiments relate to a security device having two communication interfaces sharing at least one pin, each interface being capable of operating...
US-8,037,321 Method and apparatus for the secure storage of audio signals
In one embodiment, a method, system and apparatus for recording audio is provided so that the recording can be authenticated. The system may be implemented as a...
US-8,036,904 Audio encoder and method for scalable multi-channel audio coding, and an audio decoder and method for decoding...
An audio encoder for encoding a multi-channel audio signal includes an encoder combination module (ECM) for generating a dominant signal part (m) and a residual...
US-8,036,875 Audio guidance system having ability to update language interface based on location
A CPU of a speech ECU acquires vehicle position information. If it is determined from the position information and map data stored in a memory that the vehicle...
US-8,036,777 Room lighting atmosphere creating system
The present invention relates to a room atmosphere creating system having a microprocessor electrically connected to a sensing circuit, a storage memory, and a...
US-8,036,767 System for extracting and changing the reverberant content of an audio input signal
A method and apparatus for extracting and changing the reverberant content of an input signal is provided. The method of estimating an impulse response for a...
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