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Searching: audio signal





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Patent # Description
US-7,672,743 Digital audio processing
A compressed digital audio signal is transmitted from an audio source along a connection wire to an audio receiver. The digital audio signal can encode digital...
US-7,672,693 Controlling method, secondary unit and radio terminal equipment
Radio terminal equipment of a communication system, the communication system comprising one or more secondary units coupled to the radio terminal equipment, the...
US-7,672,637 Method and system for delivering from a loudspeaker into a venue
Spread-spectrum technology, either direct sequence or frequency hopping, or a combination of the two, is used for transmitting audio signals one way and control...
US-7,672,471 Light bulb loudspeaker and sound system
A light bulb loudspeaker and sound system where a wireless or wire receiver, amplifier and power supply can be mounted inside of the boundary defined by a light...
US-7,672,470 Audio/video device having a volume control function for an external audio reproduction unit by using volume...
An audio/video (A/V) device having a volume control function for external audio reproduction units by using volume control buttons of a remote controller is...
US-7,672,466 Audio signal processing apparatus and method for the same
An audio signal processing apparatus includes a splitting unit for splitting an audio signal of a first system and another audio signal of a second system into...
US-7,672,464 Locating and correcting undesirable effects in signals that represent time-based media
The invention describes a graphical method for detecting and adjusting audio overload conditions. The graphical user interface provides a user complete playback...
US-7,672,463 Apparatus to control temperature of audio amp
A temperature control apparatus used with an audio amp to prevent the audio amp from overheating and noise from being generated by effectively controlling a...
US-7,672,411 Radio receiver
A radio receiver comprising: an antenna for receiving a radio frequency signal amplitude modulated with an audio frequency signal; a digitizer for periodically...
US-7,672,379 Audio signal processing, encoding, and decoding
Apparatus and methods for processing signals are disclosed. A data structure for processing a signal includes a payload part having at least one of data coding...
US-7,672,296 Real-time communications system of high communications quality and media terminal apparatus
A VoIP system has plural CPE units connected to an IP network as parties to be connected with each other. Each CPE unit is composed of a VoIP-IF circuit and an...
US-7,671,926 Radio frequency modulator
Disclosed herein is a Radio Frequency (RF) modulator. The RF modulator includes a Chrominance-to-Luminance (C/L) delay compensation unit for receiving a video...
US-7,671,813 Earphone antenna and wireless device including the same
An earphone antenna is provided in which two pairs of audio/high-frequency signal lines respectively corresponding to left and right earphone units are connected...
US-7,671,675 Output limiting circuit, class D power amplifier and audio equipment
An output limiting circuit includes a reference current generating portion for converting a predetermined constant voltage into a reference current by using a...
US-RE41,153 System for avoidance of collision between an aircraft and an obstacle
A field unit for warning of a danger of collision between an aircraft and an obstacle, in particular a topographical ground obstacle or an obstacle formed by a...
US-7,668,712 Audio encoding and decoding with intra frames and adaptive forward error correction
Various strategies for rate/quality control and loss resiliency in an audio codec are described. The various strategies can be used in combination or...
US-7,668,699 Optimized stochastic resonance method for signal detection and image processing
Apparatus and method for improving the detection of signals obscured by noise using stochastic resonance noise. The method determines the stochastic resonance...
US-7,668,571 Speaker system for mobile device
A speaker system for a mobile device includes first and second audio processing units and first and second speakers for reproducing audio signals and outputting...
US-7,668,566 Speaker microphone connector for communicator
A RF communication system includes a speaker microphone connector connecting a communication station with a communication unit to transmit an audio signal and RF...
US-7,668,529 Audio systems and methods
An audio system may comprise a transceiver configured to receive, detect, and transmit audio signals on a first channel frequency and to receive and detect audio...
US-7,668,463 Method and apparatus for generating and transmitting WDM MWOF signals
The present invention includes method and apparatus for converting optical signals to MWOF signals for transmission to wireless data, audio and/or video...
US-7,668,321 Automatic power foldback for audio applications
A power foldback circuit to automatically control the power of an audio amplifier by using the volume inputs to a pre-amp source which drives the audio...
US-7,668,319 Signal processing system, signal processing apparatus and method, recording medium, and program
The present invention relates to a signal processing system, a signal processing apparatus and method, a recording medium, and a program in which high frequency...
US-7,668,318 Distributed stereo system
This invention concerns a distributed stereo audio system. Distributed stereo audio systems are used to provide stereo sound to several rooms or areas from a...
US-7,668,317 Audio post processing in DVD, DTV and other audio visual products
The method and system of present invention sequences audio post-processing algorithms to simulate live or theater sound. An audio signal is selectively...
US-7,667,728 Video and audio conferencing system with spatial audio
In some embodiments, spatially realistic audio may be provided for a conference call. Voices from participants on the left side of a display, in a conference...
US-7,667,715 Video, audio and graphics decode, composite and display system
A video, audio and graphics system uses multiple transport processors to receive in-band and out-of-band MPEG Transport streams, to perform PID and section...
US-7,667,669 Vehicle display device having a wireless transmitter
There is provided a display device for a vehicle having a seat. The display device includes an assembly housing adapted to mount at a rear portion of the seat. A...
US-7,667,630 Information compression-encoding device, its decoding device, method thereof, program thereof, and recording...
The present invention aims to improve the compression ratio of an encoding method using a dictionary for such as LZ77, LZ78 or LZW for a sample string of an...
US-7,667,129 Controlling audio effects
An audio effects control for and method of controlling the application of special audio effects applied to an audio signal, comprises a sensor configured to...
US-7,667,126 Method of establishing a harmony control signal controlled in real-time by a guitar input signal
The invention relates to a method of establishing a harmony control signal controlled in real-time by a guitar audio input signal (GAS), comprising the steps of ...
US-7,667,125 Music transcription
Methods, systems, and devices are described for automatically converting audio input signal data into musical score representation data. Embodiments of the...
US-7,664,647 Camera for encoding audio signals
A camera system is provided having an integral sound recording means for recording and outputting a permanent record of sound associated with a photograph...
US-7,664,633 Audio coding via creation of sinusoidal tracks and phase determination
Coding of an audio signal represented by a respective set of sampled signal values for each of a plurality of sequential segments is disclosed. The sampled...
US-7,664,559 Effective deployment of temporal noise shaping (TNS) filters
The MPEG2 Advanced Audio Coder (AAC) standard limits the number of filters used to either one filter for a "short" block or three filters for a "long" block. In...
US-7,664,456 System and method for streaming data between a portable server computing device and a client computing device
A system and a method for streaming data between a portable server computing device and a client computing device are provided. The method includes transmitting...
US-7,664,376 Information signal processing apparatus and method, information signal processing system and method, and...
An information signal processing apparatus includes a data playback unit for playing back data from a recording medium on which featured data is recorded...
US-7,664,332 Pre-processed information embedding system
Auxiliary information (150) representing binary or multi-level (M.gtoreq.2) logical values is embedded into successive segments (110) of an audio, video or other...
US-7,664,275 Acoustic feedback cancellation system
A system for canceling acoustic feedback includes an input for receiving a digital audio signal and a processor configured to detect acoustic feedback signal in...
US-7,664,274 Enhanced acoustic transmission system and method
A system to generate an enhanced acoustic transmission signal includes a carrier signal generator to generate a carrier signal. A data signal generator is...
US-7,664,273 Approach for controlling audio signals in remote location
An example embodiment is directed to use in a facility benefiting from the distribution of audio throughout different facility zones ("audio zones"), with each...
US-7,664,270 3D audio signal processing system using rigid sphere and method thereof
Provided are a three-dimensional audio signal processing system using a rigid sphere and a method thereof. The three-dimensional audio signal processing system...
US-7,664,268 Conditional access system for digital receivers
A method for providing conditional access (i.e., managing access) to a received scrambled audio/visual (A/V) signal from a variety of sources by utilizing secret...
US-7,664,231 Method and device for quality evaluation of an audio signal and device and method for obtaining a quality...
A quality evaluation device for quality evaluation of an audio signal transmitted via an audio signal channel includes a unit for providing contacting...
US-7,664,197 AM receiving circuit
An AM receiving circuit is disclosed which comprises an intermediate frequency amplifying unit that generates an intermediate frequency signal from a broadcast...
US-7,664,060 Information terminal and information terminal system
An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an...
US-7,664,057 Audio-to-video synchronization system and method for packet-based network video conferencing
Synchronizing audio and video streams in packet-based networks requires synchronization of packet timestamps. The present invention provides such synchronization...
US-7,663,706 In-wall type multi-functional television set
An in-wall type multi-functional television set being embedded in the wall of home, accommodated and withdrawn from the wall. The in-wall type multi-functional...
US-7,663,433 Audio amplifier
An audio amplifier is provided. The audio amplifier includes an amplifier, a biasing circuit, and a time-delay circuit. The amplifier circuit is for amplifying...
US-7,663,046 Pipeline techniques for processing musical instrument digital interface (MIDI) files
This disclosure describes techniques for processing audio files that comply with the musical instrument digital interface (MIDI) format. In particular, various...
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