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Searching: audio signal





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Patent # Description
US-7,751,576 Loudspeaker apparatus
A loudspeaker apparatus has an improved reproduction characteristic of signals of small sound volumes. The loudspeaker apparatus includes a small-signal...
US-7,751,574 Reverberation apparatus controllable by positional information of sound source
In a reverberation apparatus, a storage section stores a directional characteristic representing a directivity of generated sound at a sound generating point. A...
US-7,751,572 Adaptive residual audio coding
An audio signal having at least two channels can be efficiently down-mixed into a downmixe signal and a residual signal, when the down-mixing rule used depends...
US-7,751,534 System and method for the emergency voice and image e-mail transmitter device
A voice-image e-mail transmitter device that is designed for emergency and surveillance purposes is disclosed. This device converts voice signals and picture...
US-7,751,480 Video encoding and video/audio/data multiplexing device
The present invention provides a buffer architecture and latency reduction mechanism for buffering uncompressed/compressed information. This combination provides...
US-7,751,434 Unified distributed architecture for a multi-point video conference and interactive broadcast systems
A unified architecture for a multipoint VC session and interactive broadcasting system is provided that includes a server, one or more video accessing points,...
US-7,751,378 Method, apparatus and system for client-based distributed PBX for enterprise telephony
A system and associated processes to provide interactive public branch exchange (PBX) processes. The PBX processes including: session initiation protocol (SIP)...
US-7,750,978 Audio/video separator
An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF...
US-7,750,829 Scalable encoding and/or decoding method and apparatus
A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based...
US-7,750,820 Christmas tree alerting device
An emergency alerting device for a Christmas tree utilizing a sheath having a housing forming an open chamber which is capable of encompassing the top of a...
US-7,750,229 Sound synthesis by combining a slowly varying underlying spectrum, pitch and loudness with quicker varying...
The present synthesizer generates an underlying spectrum, pitch and loudness for a sound to be synthesized, and then combines the underlying spectrum, pitch and...
US-7,748,019 Local network in a vehicle
A vehicle-hosted local network includes a subscriber data source that transmits audio data and compressed video data to respective subscriber data sinks on the...
US-7,748,015 Processing of a broadcast signal
A method of processing a broadcast signal comprises receiving a broadcast signal, the signal including a video component and an audio component. A data component...
US-7,747,928 Digital wireless communication apparatus
A prediction signal calculator with a limit function is provided with a multiplier calculating a partial prediction signal composed of the product of a polar...
US-7,747,725 Method for transporting digital media
A networked system is provided for transporting digital media packets, such as audio and video. The network includes network devices interconnected to send and...
US-7,747,431 Code conversion method and device, program, and recording medium
An audio decoding device (1) generates a first decoded audio from a first code string by a first decoding method, AN audio encoding device (2) judges whether the...
US-7,747,430 Coding model selection
The invention relates to an encoder (200) comprising an input (201) for inputting frames of an audio signal, a LTP analysis block (209) for performing a LTP...
US-7,747,295 Earphone jack for eliminating power noise in mobile communication terminal, and operating method thereof
An earphone jack for a mobile communication terminal and a driving method thereof, wherein the earphone jack includes a first speaker terminal for providing a...
US-7,747,293 Display control for cellular phone
A cellular phone comprises a transceiver that wirelessly transmits and receives wireless cellular signals, a display, an input device, a microphone that...
US-7,747,281 Method for in-band signaling of data over digital wireless telecommunications networks
An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder...
US-7,747,232 Radio reception system with automatic tuning
A method and apparatus for operating a radio reception system, which comprises a plurality of receivers assigned to a common output device, in which one of the...
US-7,747,215 Apparatus and method for editing a received video and audio signal in a mobile terminal
The present invention relates to a broadcast editing apparatus and method for editing a satellite broadcast signal in a mobile terminal of a wireless...
US-7,747,143 Digital video recorder
A unique high performance digital video recorder having a number of novel features. The recorder's electronics are all on a unitary printed circuit board. The...
US-7,747,038 Method and apparatus for associating identifiers with content
Watermark detection in an image or the like can be optimized by exploiting the innate biases in the image to emphasize the watermark signal. The watermark signal...
US-7,747,002 Method and system for stereo echo cancellation for VoIP communication systems
An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio...
US-7,746,904 Audio/video processing unit and control method thereof
A home theater includes a main unit section and at least one speaker section. The main unit section includes a communication section which receives an AV stream...
US-7,746,797 Non-intrusive monitoring of quality levels for voice communications over a packet-based network
Provided is a method and apparatus for objectively and non-intrusively measuring voice quality on live calls without disrupting the call session or the network....
US-7,746,629 Method and system for coupling a laptop or other portable or hand-held device to a docking system using an...
Methods and systems for coupling a laptop or other portable or hand-held device to a docking system using an Ethernet Interface are disclosed and may comprise...
US-7,746,412 Highly integrated television tuner on a single microcircuit
A broadband integrated receiver for receiving input signals and outputting composite video and audio signals is disclosed. The receiver employs an up-conversion...
US-7,745,718 Music-piece classifying apparatus and method, and related computer program
A bibliographic-information impression word is generated from a bibliographic information segment about selected one of music pieces. An acoustic feature...
US-7,745,714 Recording or playback apparatus and musical piece detecting apparatus
Provided is a recording or playback apparatus capable of separating a musical piece from an audio including the musical piece and a speech through a simple...
US-7,744,525 Moving coil actuator for middle ear implants
A hearing enhancement includes an audio processor that generates an electrical audio signal and transmits the signal to a coil. The coil is implanted into a...
US-7,744,428 Audio signal switcher
The present invention provides an audio signal switcher including a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB...
US-7,743,187 Audio system, and USB/UART common communication system for the same
An audio system sets a signal line path between the medium of an audio device and an external device and uploads a digital audio file from the external device to...
US-7,742,926 Digital audio signal compression method and apparatus
Compression of audio signal data is described herein. In various embodiments, the compression of each unit of the audio signal data includes the employment of a...
US-7,742,916 Method and devices for evaluating transmission times and for processing a voice signal received in a terminal...
A method for evaluating the processing delay of a speech signal contained in data packets received in a receiver terminal having a telephony module during a...
US-7,742,915 Apparatus and method for transmitting and receiving data in a mobile communication terminal
An apparatus for transmitting data from a mobile communication terminal includes an audio codec which converts a voice signal into digital voice data, a...
US-7,742,914 Audio spectral noise reduction method and apparatus
A method of reducing noise in an audio signal, comprising the steps of: using a furrow filter to select spectral components that are narrow in frequency but...
US-7,742,912 Method and apparatus to encode and decode multi-channel audio signals
An encoder (100) for encoding a multi-channel audio signal comprises a prediction processor (101) for generating two residual signals for two signal components...
US-7,742,832 Method and apparatus for wireless digital audio playback for player piano applications
The present invention discloses methods and systems for providing very high quality audio playback using all-digital wireless paths from a source to speaker...
US-7,742,749 Method and device for processing signals received by a receiver of radiophonic signals and car radio comprising...
A method for processing signals received (30) by a sound program signal receiver includes a step (42, 44) of adjusting at least one parameter for processing...
US-7,742,746 Automatic volume and dynamic range adjustment for mobile audio devices
A mobile audio device (for example, a cellular telephone, personal digital audio player, or MP3 player) performs Audio Dynamic Range Control (ADRC) and Automatic...
US-7,742,740 Audio player device for synchronous playback of audio signals with a compatible device
The present invention discloses a method, system and apparatus for playing an audio signal synchronously on a first mobile audio player and at least a second...
US-7,742,737 Methods and apparatus for identifying a digital audio signal
Method and apparatus for identifying broadcast digital audio signals include structure and/or function whereby the digital audio signal is provided to processing...
US-7,742,683 Information recording medium, information recording device and method, information reproduction device and...
An information recording medium includes a file for storing object data consisting of a plurality of packets and a file for storing, as its reproduction control...
US-7,742,680 Apparatus and method for processing signals
A tuner 1 receives a TV-broadcast signal from an antenna 6. The TV-broadcast signal is supplied to a demodulator 2. The demodulator 2 demodulates the audio...
US-7,742,609 Live performance audio mixing system with simplified user interface
A digital audio mixing system for live performance venues includes a software user interface and system host PC with an internal digital signal processor to...
US-7,742,592 Method and device for removing echo in an audio signal
Acoustic echo control and noise suppression is an important part of any "handsfree" telecommunication system, such as telephony or audio or video conferencing...
US-7,742,588 Speakerphone establishing and using a second connection of graphics information
Disclosed herein are methods, systems, and devices for improved audio, video, and data conferencing. The present invention provides a conferencing system...
US-7,742,466 Switchboard for multiple data rate communication system
A switchboard device and methods of operation of same are disclosed. Embodiments of the invention may provide a flexible means of interconnecting wideband and...
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