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Searching: audio signal





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Patent # Description
US-7,907,010 Digital amplifier
Recently, the use of class-D audio amplifiers has become more and more widespread. In contrast to the generally employed class-AB linear amplification...
US-7,904,611 Wireless communication apparatus and control method for the same
According to one embodiment, a wireless communication apparatus includes a receptacle, a power supply controller and a control module. The receptacle is adapted...
US-7,904,598 Remote radio spectrum information acquisition
A scanner system provides real-time remote acquisition of a scanner's audio signals and visual display, and real-time remote control of scanner operations,...
US-7,904,301 Processing digital data
An original digital audio signal represents unimpaired audio information. The digital audio signal is compressed and encrypted without substantial impairment to...
US-7,904,296 Spoken word spotting queries
An approach to wordspotting (180) using query data from one or more spoken instance of a query (140). The query data is processed to determining a representation...
US-7,904,293 Sub-band voice codec with multi-stage codebooks and redundant coding
Techniques and tools related to coding and decoding of audio information are described. For example, redundant coded information for decoding a current frame...
US-7,904,165 Methods and systems for presenting an audio signal to a cochlear implant patient
Methods and systems of presenting an audio signal to a cochlear implant patient include dividing the audio signal into a plurality of analysis channels,...
US-7,904,120 Mobile communication terminal capable of performing other functions while outputting DMB to external AV device
Provided is a mobile communication terminal capable of receiving Digital Multimedia Broadcasting (DMB), which includes a mobile communication terminal module, a...
US-7,904,095 GPS microphone for communication system
A GPS microphone, which is adapted for incorporating a communication system, includes a speaker-microphone set, a radio frequency transmitter communicatively...
US-7,904,056 System, method and apparatus for recording and reproducing trading communications
Apparatus, method and system are provided for recording and reproducing audio channel signals. A processor captures the audio channel signals communicated...
US-7,903,833 Headworn listening device and method
A headworn listening device includes a right ear assembly and a left ear assembly interconnected by a headband. The headworn listening device is preferably...
US-7,903,828 Remote multipoint architecture for full-duplex audio
A method, microphone module and a system for full-duplex audio system implementing full duplex audio, audio echo cancellation and audio codec. The audio signals...
US-7,903,826 Headset with ambient sound
A headset that includes an input that receives an audio signal from an electronic equipment, and at least one earpiece having an electro-acoustic speaker for...
US-7,903,825 Personal audio playback device having gain control responsive to environmental sounds
A personal audio playback device having gain control responsive to environmental sounds provides for improved enjoyment of program material played back through...
US-7,903,823 Apparatus and method for effecting sound stage expansion
An apparatus for effecting sound stage expansion in an audio system presenting two sound channels includes: (a) A first signal source coupled for providing at...
US-7,903,137 Videoconferencing echo cancellers
A system may be configured to: receive remote audio signals and corresponding spatial indicators from remote systems; generate output signals for local speakers...
US-7,899,946 Audio and USB multiplexing
An analog/digital switching circuit for connecting a primary electronic device to a peripheral electronic device, including D+ and D- signal lines connected to a...
US-7,899,677 Adapting masking thresholds for encoding a low frequency transient signal in audio data
An improved audio coding technique encodes audio having a low frequency transient signal, using a long block, but with a set of adapted masking thresholds. Upon...
US-7,899,549 Cardiac lead implantation system
Cardiac lead implantation systems and methods including an electronics arrangement provided with a user interface and a coupler assembly. A coupler body is...
US-7,899,466 GPS microphone for communication system
A communication apparatus, such as a GPS microphone, which is adapted for incorporating a communication system, includes a communication unit such as a...
US-7,899,442 Multimedia data transfer for a personal communication device
In a portable multimedia device, data is passed between a sender and receiver unit by way of voice channel only. Multimedia data is vocalized and then forwarded...
US-7,899,198 Headrest surround channel electroacoustical transducing
An audio system including a first audio source, including a surround channel signal, coupled to an electroacoustical transducer mounted in the back of a seat of,...
US-7,899,197 Electrostatic transducer, driving circuit of capacitive load, method for setting circuit constant, ultrasonic...
Provided is an electrostatic transducer which is driven by a boosted driving signal by boosting a modulated signal obtained by modulating a carrier wave with an...
US-7,899,195 Adaptive howling canceller
An adaptive howling canceller has a plurality of adaptive filters. A delay adds a time delay of an acoustic feedback path to an electric signal fed from an...
US-7,899,194 Dual ear voice communication device
A method for voice communication which includes sensing at least one channel of audio information from proximate a first external auditory canal of a user,...
US-7,899,192 Method for dynamically adjusting the spectral content of an audio signal
A method for dynamically adjusting the spectral content of an audio signal, which increases the harmonic content of said audio signal, said method comprising...
US-7,899,191 Synthesizing a mono audio signal
The invention relates to a method of synthesizing a mono audio signal 3 based on an available encoded multichannel audio signal 2. The encoded multichannel audio...
US-7,899,133 Receiving system
A receiving system includes: FIFO memory 13 storing audio data AD contained in a transmission signal T; an extraction unit 14 configured to extract a clock...
US-7,898,395 Method and apparatus for detecting radio frequency signals
A method and apparatus for sensing radio frequency signals. A radio frequency strength sensing apparatus converts a sensed radio frequency signal to an audible...
US-7,898,324 Method and system for glitch suppression in dual-amplifier circuit
An apparatus includes first and second amplifiers, each having an input coupled to an audio signal input and an output coupled to an audio signal output. The...
US-7,896,707 Audio signal switcher
An audio signal switcher includes a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The audio jack includes a...
US-7,895,623 Digital broadcast and transmission system including more detailed PSIP information
A digital broadcasting transmission system according to an embodiment, including a plurality of single program encoders configured to encode and multiplex...
US-7,895,138 Device and a method to process audio data, a computer program element and computer-readable medium
An audio data processing device (100) comprises an audio redistributor (101) adapted to generate a first number of audio data output signals (102; Z.sub.1 . . ....
US-7,895,034 Audio encoding system
Provided are, among other things, systems, methods and techniques for encoding an audio signal, in which is obtained a sampled audio signal which has been...
US-7,894,678 Radio communication device, radio communication system, wireless AV system, radio transmission method,...
A radio communication system according to the present invention includes a video/audio transmitter (1) and a video/audio receiver (2) for transmission/reception...
US-7,894,621 Audio device comprising a microphone
An audio device includes a microphone, a sound canal allowing sound to pass from the surroundings to the microphone, a signal path from the microphone to a...
US-7,894,615 Attenuator device for amplified musical instruments
An apparatus is provided for attenuating electrical signals in the signal path of an electronic audio frequency amplifier for amplifying signals from musical...
US-7,894,611 Spatial disassembly processor
Two-channel input audio signals are processed to construct output audio signals by decomposing the two-channel input audio signals into a plurality of...
US-7,894,610 Method for coding and decoding impulse responses of audio signals
The transmission and use of real, i. e. of measured, room impulse responses for the reproduction of sound signals with this room characteristic compatible to the...
US-7,894,598 System for limiting receive audio
A system for limiting a received audio signal in a communication system is provided. The receive audio signal is limited prior to being played over a loudspeaker...
US-7,894,560 Pilot tracking module operable to adjust interpolator sample timing within a handheld audio system
A processing module including an interpolator, a demodulator, and a tracking module. The interpolator applies a feedback signal to a first digitized signal...
US-7,894,519 Wireless event authentication system
A wireless data acquisition and recording (DAR) system includes acquisition circuitry including a video camera and/or a microphone carried by an operator for...
US-7,894,511 Multi-device coordinated audio playback
A wireless device (100) provides coordinated audio playback. The device (100) includes a network interface (112) that receives a signal from a sending or...
US-7,893,343 Musical instrument digital interface parameter storage
This disclosure describes techniques for processing audio files that comply with the musical instrument digital interface (MIDI) format. In particular, this...
US-7,892,116 Baseball training aid
A baseball training aid is provided which includes an audio or visual pitch indicator for simulating a baseball pitcher's pitch. The training aid further...
US-7,892,091 Gaming device and method for enhancing the issuance or transfer of an award
A gaming device and method for enhancing an award or a transfer of a plurality of credits. The gaming device and method initially displays one or more audio and...
US-7,890,975 Data broadcast method
A system for providing a plurality of sets of broadcast data service transmitted as part of a broadcast signal, including a processor configured to periodically...
US-7,890,741 Low power digital audio decoding/playing system for computing devices
A computer system includes a system CPU responsive to a control signal to load a first operating system or a second operating system. The first operating system...
US-7,890,322 Method and apparatus for speech signal processing
A method for speech signal processing is provided. Energy attenuation gain values are set for background noise signals corresponding to obtained background noise...
US-7,890,196 Magnetic and optical rotating storage systems with audio monitoring
A device includes an integrated circuit, a fan that cools the integrated circuit, and an audio monitoring module that analyzes audio signals that are based on...
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