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Searching: audio signal





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Patent # Description
US-7,764,799 Audio system providing for filter coefficient copying
A system (1) is described which is suited for suppressing audio distortion. The system comprises echo cancelling means (g.sub.1, g.sub.2) coupled between an...
US-7,764,797 Speaker driving device and audio output system
The present invention detects whether the supply voltage applied to the power supply terminal (3) is used for the dynamic speaker or for the piezoelectric...
US-7,764,796 Signal strength information dependent control of small electrodynamic transducers in audio systems
A control circuit for a signal strength information dependant frequency response adaptation of an audio signal for an electrodynamic transducer, with a signal...
US-7,764,775 Distributed intercom system
A distributed intercom system including a centralized interconnection unit with a central control device for receiving, processing and transmitting signals, a...
US-7,764,671 Method and system for a multi-channel audio interconnect bus
Provided is a system and method for communicating audio. A method includes transmitting audio information segments on a first signal line, each segment including...
US-7,764,189 Audio coordinated visual indicator
An audio-coordinated visual indicator reducing vehicle operator distraction associated with using a communications device during vehicle operation. The visual...
US-7,764,186 Gas sensing method and instrument therefor
A method and instrument capable of accurately detecting the presence of a gas and accurately measuring the concentration of the gas in, for example, the...
US-7,764,171 Adjusting a communications channel between control unit and remote sensor
The present invention provides apparatuses and systems for adjusting a communication channel between a control unit and a remote sensor. A system may include a...
US-7,763,803 High fidelity signal transmission cable
A high accuracy cable for transmitting audio and video signals having a sleeve of natural fiber material such as cotton surrounding each conductor and a spacer...
US-7,761,304 Synchronizing parametric coding of spatial audio with externally provided downmix
Embodiments of the present invention are directed to a binaural cue coding (BCC) scheme in which an externally provided audio signal (e.g., a studio engineering...
US-7,761,303 Slot position coding of TTT syntax of spatial audio coding application
Spatial information associated with an audio signal is encoded into a bitstream, which can be transmitted to a decoder or recorded to a storage media. The...
US-7,761,291 Method for processing audio-signals
The invention regards a method for processing audio-signals whereby audio signals are captured at two spaced apart locations and subject to a transformation in...
US-7,761,177 Method for generating encoded audio signal and method for processing audio signal
A method for generating an encoded audio signal, and a method for processing the same during the multi-channel audio coding are disclosed. The present invention...
US-7,760,991 Multimedia data reproducing apparatus
A multimedia data reproducing apparatus includes: a multimedia data acquiring unit configured to acquire multimedia data, the multimedia data including sound...
US-7,760,898 Eyeglasses with hearing enhanced and other audio signal-generating capabilities
Novel techniques for hearing enhancement based on a pair of glasses are disclosed. In one embodiment, the glasses include a first lens holder, a second lens...
US-7,760,893 Automatic volume control to compensate for speech interference noise
A microphone detects acoustic waves from speakers and background noise, and produces a corresponding signal that is digitized; also digitized is a desired audio...
US-7,760,892 Noise elimination circuit for audio equipment
A noise elimination circuit of a audio output device includes a sound card for receiving a digital audio signal and transforming it to an analog audio signal; an...
US-7,760,890 Sound processing system for configuration of audio signals in a vehicle
A sound processing system for a vehicle includes a sound processor that is configured to mix at least one real audio input signal to form at least one virtual...
US-7,760,869 Method and apparatus for controlling the transmit volume level of a speakerphone
A method and apparatus for controlling the transmit volume level of a speakerphone includes receiving a transmit audio signal. If the speakerphone is in a...
US-7,760,790 Method and apparatus for transmitting watermark data bits using a spread spectrum, and for regaining watermark...
Spread spectrum technology is used for watermarking digital audio signals. To retrieve a watermark signal information bit from the spread spectrum at the...
US-7,760,766 Audio processor
An audio information detector extracts frequency information on audio data from a packet called an ASP in the HDMI standard and outputs the extracted frequency...
US-7,760,764 Digital broadcast receiving apparatus and method of reducing output time of broadcast content
A digital broadcast receiving apparatus and method of reducing an output time of broadcast content, includes for the apparatus, a transport stream generator...
US-7,760,660 Systems and methods for automatic evaluation of subjective quality of packetized telecommunication signals...
A system and method automates the process of objectively measuring the subjective quality of packetized telecommunication signals as a function of network...
US-7,760,016 Anti-pop circuits and methods for audio amplifiers using variable resistors
Anti-pop circuits are provided for an audio amplifier that uses a power supply voltage and a ground voltage to drive a load with an audio signal that is centered...
US-7,758,365 Self-muting audio connector
This disclosure concerns methods, systems and apparatus that can be automatically activated by means of insertion into a jack socket and designed such that when...
US-7,757,255 Digital broadcasting receiver
A digital broadcasting receiver includes an operating section configured to select a channel, and a video/audio data obtaining section configured to obtain...
US-7,757,051 Dynamic memory reconfiguration for signal processing
A system and method for processing data (e.g., encoded audio data in an audio decoder). Various aspects of the present invention may comprise a first memory...
US-7,756,874 System and methods for providing automatic classification of media entities according to consonance properties
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing...
US-7,756,715 Apparatus, method, and medium for processing audio signal using correlation between bands
Apparatus, method, and medium for processing an audio signal using a correlation between bands are provided. The apparatus includes an encoding unit encoding an...
US-7,756,714 System and method for extending spectral bandwidth of an audio signal
A system is provided for extending the spectral bandwidth of a bandwidth limited audio signal by applying a nonlinear function to the bandwidth limited speech...
US-7,756,713 Audio signal decoding device which decodes a downmix channel signal and audio signal encoding device which...
In the conventional art inventions for coding multi-channel audio signals, three of the major processes involved are: generation of a reverberation signal using...
US-7,756,704 Voice/music determining apparatus and method
A voice/music determining apparatus is configured to calculate first feature parameters for discriminating between a voice signal and a musical signal; and...
US-7,756,701 Audio signal processing using pilot based coding
An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to...
US-7,756,550 Hands free device for a cellular phone
A hands free device for a cellular phone which has a telephone transceiving unit for a mobile radio network and in addition a communication device for the...
US-7,756,465 Digital radio feedback apparatuses, system, and methods
An apparatus, system, and method for establishing a two-way communication feedback path between a receiver and a transmitter. The receiver includes an input...
US-7,756,390 Video signal separation information setting method and apparatus using audio modes
It is determined whether or not the total length or ratio of periods in which an audio signal is set in a first mode with respect to the preset length of...
US-7,756,344 System for displaying character and a method thereof
Disclosed are an image processing system for displaying character information and a method for the same. According to the image processing system, character...
US-7,756,285 Hearing aid with tuned microphone cavity
A hearing aid comprises a microphone that receives incident sound waves from one or more sources external to the hearing aid, and converts the sound waves into...
US-7,756,280 Audio processing system and method for automatically adjusting volume
The present invention relates to an audio processing system and method for automatically adjusting volume. The method includes steps of: calculating a noise...
US-7,756,278 Ultra-directional microphones
Some embodiments provides a highly directional audio response that is flat over five octaves or more by the use of multiple colinear arrays followed by signal...
US-7,756,277 Distributed audio system
A distributed stereo system includes two (or more) speakers; a source of audio signals; an amplifier in the same room as the speakers that drives the speakers;...
US-7,756,276 Audio amplification apparatus
A method of adjusting frequency-dependent amplification in an audio amplification apparatus. The audio amplification apparatus includes a forward transfer path...
US-7,756,275 Dynamically controlled digital audio signal processor
A system and method for processing multiple channel audio signals to create a realistic soundscape in a space largely independent of the number of loudspeakers...
US-7,756,274 Sonic landscape system
A system for providing a listener with an augmented audio reality in a geographical environment said system comprising a position locating system for determining...
US-7,756,234 Method of and system for controlling frame synchronization for European Digital Audio Broadcasting
Disclosed are a method of and a system for controlling frame synchronization for European Digital Audio Broadcast (DAB), the method including the steps of...
US-7,756,110 Network-based control of audio/video stream processing
A method for controlling media stream processing comprises: (a) transmitting a media stream, via a first packet-based network, to an operator; (b) receiving from...
US-7,755,975 System for providing wireless waterproof audio
Disclosed herein are systems and methods for providing wireless waterproof audio to a user in an aquatic environment. The systems may include earphones adapted...
US-7,755,471 Motion sensitive self-contained audio module for warning signs
A self-contained motion sensitive audio module includes a sensor circuit coupled to a pyroelectric infrared sensor with two sensing elements configured for...
US-7,755,221 Electronic device with compound audio interface and power adapter
An exemplary electronic device includes a power module having an anode and a cathode; an audio module having an audio signal terminal and a ground terminal; an...
US-7,755,216 Uninterrupted power supply with IR control link
A Universal Power Supply (UPS) protects audio/visual (A/V) components from damage that may occur due to a sudden power loss by first, providing back up power via...
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