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Searching: audio signal





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Patent # Description
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An in-wall type multi-functional television set being embedded in the wall of home, accommodated and withdrawn from the wall.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...
US-7,661,133 Information processing apparatus, information processing method, information processing system and recording medium
A member-store functional unit transfers the name of a member store and the title of a campaign to an ID-assigning functional unit which assigns IDs to the title...
US-7,660,982 Subscription broadcast security system
A subscription broadcast security system for preventing theft of an encrypted program datastream utilizes an encryption protocol with steganographic...
US-7,660,839 Digital filter having improved overload recovery characteristics
A digital filter having improved overload characteristics provides improved performance in audio equalizers and other systems. In contrast to a standard digital...
US-7,660,720 Lossless audio coding/decoding method and apparatus
A lossless audio coding and/or decoding method and apparatus are provided. The coding method includes: mapping the audio signal in the frequency domain having an...
US-7,660,605 Method and system for the configuration of a mobile station baseband circuit for an acoustic accessory
A method and system for the configuration of a mobile station baseband circuit for an acoustic accessory having an identifier, the method comprising the steps...
US-7,660,510 Device for creating content from multiple video and/or audio materials and method therefor
An EPL maker (10) is composed mainly of editing terminals (15), (16) and (17) each reading and decoding each of highly compressed sub materials to produce a...
US-7,660,428 Ceiling microphone assembly
An overhead microphone assembly using multiple unidirectional microphone elements. The microphone assembly is installed overhead, generally above all the desired...
US-7,660,425 Acoustic echo cancellation
A multiple channel steered spatialized signal is generated from a signal input modified according to respective spatialization gain functions to generate a...
US-7,660,424 Audio channel spatial translation
Using an M:N variable matrix, M audio input signals, each associated with a direction, are translated to N audio output signals, each associated with a...
US-7,659,843 Digitizing an analog signal, and reconstituting an analog signal from a digitized version of the analog signal
An embodiment of an audio-signal digitizer includes a modulator and a converter. The modulator is operable to receive an analog audio signal, and is operable to...
US-7,658,100 Device and method for measuring air movement
This device has a detection means to measure the relative amount of air movement in its vicinity. The detection means is coupled to a processing means for...
US-7,657,919 Single wire return device including a QAM modulator for downstream IP signals
Systems and methods are disclosed for receiving IP video and audio signals at a subscriber's premises. A QAM modulator then modulates the IP signals and provides...
US-7,657,336 Reduction of memory requirements by de-interleaving audio samples with two buffers
Presented herein is a method and system for reducing memory requirements in audio signal processing by de-interleaving audio information with at least two static...
US-7,657,335 Digital audio signal reproducing apparatus
When an emphasis setting of a next track is different from that of a current track, a silent signal having the emphasis setting of the next track written in its...
US-7,657,240 Adaptable RF audio receiver and method for adapting processing of RF audio signals
An adjustable RF audio receiver and method are provided. The adjustable RF audio receiver includes an RF antenna configured to receive RF audio signals, and a...
US-7,657,224 Localized audio networks and associated digital accessories
Individuals share music through portable audio devices that synchronously play music by transmitting music signals from one device to the other. Upon request,...
US-7,657,153 Data processing apparatus
A data processing apparatus is capable of writing program data concerning video and/or audio on a first storage medium and a second storage medium. The data...
US-7,657,150 Optical disk apparatus
An optical disk apparatus is configured to switch the audio signals to be output to the sound output terminal by means of the slide switch having contact points...
US-7,657,058 Watermark orientation signals conveying payload data
Steganographic calibration signals (sometimes termed "orientation signals," "marker signals," reference signals," "grid signals," etc.) are sometimes included...
US-7,657,048 Acoustical receiver housing for hearing aids
An acoustic receiver comprises means for converting an input audio signal into an acoustic signal. The receiver has a housing having a plurality of sides that...
US-7,657,041 Laser audio preamplifier, volume control, and multiplexer
A fiber optical audio preamplifier receives audio signals from an audio source, amplifies the audio signals, and transfers the signals to a power amplifier. The...
US-7,657,039 Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same
The present invention comprises a circuit having at least not less than three cascade connected phase shift circuits and wherein the phase characteristic of the...
US-7,656,968 Radio receiver, system on a chip integrated circuit and methods for use therewith
A system on a chip integrated circuit includes an analog front end for receiving a received radio signal having a plurality of channel signals, each of the...
US-7,656,947 Synchronization device and synchronization method in digital broadcast receiver
A decoding device and a decoding method in a digital broadcast receiver are provided, in which received packet data is demultiplexed into video data and audio...
US-7,656,930 Assessing quality of service using digital watermark information
The disclosure details methods of measuring the quality of service of received media signals by analyzing digital watermarks embedded in such signals. The...
US-7,656,397 Pointing device with integrated audio input and associated methods
A mobile personal digital assistant (PDA) allows a user to enter information using both a touch screen and voice commands with a stylus. The stylus includes a...
US-7,656,331 System on a chip with multiple independent outputs
An audio output circuit includes a DAC module, a line out circuit, and a headphone amplifier circuit. The digital to analog conversion (DAC) module is coupled to...
US-7,656,280 Telematic parametric speed metering system
Embodiments of the present invention provide systems, articles of manufacture and methods for a telematic parametric speed metering system. In one embodiment, a...
US-7,654,872 Audio jack connector
An audio jack connector includes a housing and a terminal group. The housing has an insertion hole extending inward from the front of the housing. The bottom of...
US-7,654,860 Signal transmission wire with an audio interface and a USB interface
A signal transmission wire with audio interface and USB interface, the wire is a four-core connection wire, one end of which is connected to a USB interface, the...
US-7,654,462 Mobile device base station for enhanced signal strength for on-demand media services
Embodiments of the present invention provide systems and methods for capturing on-demand media content for use with portable media devices, including wireless...
US-7,653,539 Communication device, signal encoding/decoding method
There is provided a communication device for effectively encoding an audio/music signal while maintaining a predetermined quality by controlling the transmission...
US-7,653,447 Integrated audio video signal processing system using centralized processing of signals
Integrated processing of audio/video signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home...
US-7,653,344 Wireless digital audio/video playback system
The present invention discloses methods and systems for providing very high quality audio and video playback using all-digital wireless paths from the source to...
US-7,653,206 Digital audio device
A digital audio device. According to one aspect of the invention, the device includes a memory and an analog input system configured to record analog audio...
US-7,653,204 Method and system for codec with polyringer
In an audio processing device, a method and system for improved CODEC with polyringer are provided. An audio CODEC may comprise an audio ADC, an audio DAC, and a...
US-7,653,058 Optical network for bi-directional wireless communication
A wireless transceiving system capable of processing multi-channel broadcast signals and Ethernet signals from an Ethernet PON (Passive Optical Network), the...
US-7,652,605 Semiconductor device and audio processor chip
An audio processor chip includes a DSP for decoding audio data, a first DAC for performing a D/A conversion to the digital data obtained from the DSP, a PLL...
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