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Searching: audio signal





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Patent # Description
US-7,729,255 Method of a signal transmission for controlling a quantity of data transmitted and a signal transmission...
When digital signals are to be transmitted between a camera unit and a camera control unit, the distance of their transmission depends on the frequency at which...
US-7,728,874 Video camera apparatus
A video camera apparatus provided with image capturing means, which includes: audio communication means for receiving an audio signal from a wireless microphone...
US-7,728,666 Close-loop class-D audio amplifier and control method thereof
The present invention discloses a Class-D power amplifier and control method thereof. In one embodiment, the amplifier feeds back the signal at the output node...
US-7,728,660 Audio signal processing system and method
An audio signal processing system and method is disclosed. In a particular embodiment, the audio signal processing system includes a first electrical path...
US-7,728,658 Low-noise, low-distortion digital PWM amplifier
Systems and methods for performance improvements in digital switching amplifiers using low-pass filtering to reduce noise and distortion. In one embodiment, a...
US-7,728,651 Drive circuit, voltage conversion device and audio system
The first control transistor is connected between a first input node for receiving a first input signal swinging between a first voltage and a second voltage and...
US-7,725,310 Audio encoding
Coding of an audio signal (x) represented by a respective set of sampled signal values (x(t)) for each of a plurality of sequential time segments is disclosed....
US-7,725,075 Control element for simplex HF to VHF/UHF cross-band system with transmission breakthrough
The device and method disclosed deals with the operation of a cross-band simplex radio frequency communications system. In a system having a first band receiver...
US-7,725,073 System and method for providing event spectators with audio/video signals pertaining to remote events
A system and method providing content for access by a portable device at an event is provided. The method includes receiving a plurality of signals from a...
US-7,725,006 Record carrier carrying a video signal and at least one additional information signal
A record carrier is described carrying a video signal and at least one additional information signal, such as graphics or audio. The at least one additional...
US-7,724,908 System and method for programming a hearing aid
A system for providing a talk-over functionality from an attendant to a hearing aid user comprises a hearing aid (4), a link device (5) connected to the hearing...
US-7,724,891 Method to reduce acoustic coupling in audio conferencing systems
A method to reduce acoustic coupling in an audio conferencing system having a loudspeaker and a plurality of microphones, comprising detecting the presence of...
US-7,724,885 Spatialization arrangement for conference call
A method for distinguishing speakers in a conference call of a plurality of participants, in which method speech frames of the conference call are received in a...
US-7,724,843 Clock adjustment for a handheld audio system
A handheld audio system having a radio signal decoder that includes a method for adjusting a system clock. Adjusting the system clock includes receiving a signal...
US-7,724,727 Communicating calls from analog devices using voice over packet technology
Communicating a call from an analog device is disclosed. An analog interface receives analog signals from an analog device, and a receiver receives audio...
US-7,724,165 Audio codec and built-in self test method for the same
An audio codec and a BIST method adapted for the audio codec are provided. The BIST method includes the following steps. A first channel digital-to-analog...
US-7,724,082 Method and apparatus for pulse width modulation in a switching amplifier
There is provided a method and apparatus for output pulse width modulation in a digital amplifier including: a determining step of adding or subtracting a value...
US-7,721,028 Keyboard video mouse (KVM) switch between plurality of internal USB hubs each associated with plurality of...
An improved KVM switch is provided which enables computers to be connected to the KVM switch by reduced numbers of cables. It also supports transmission of...
US-7,720,677 Time warped modified transform coding of audio signals
A spectral representation of an audio signal having consecutive audio frames can be derived more efficiently, when a common time warp is estimated for any two...
US-7,720,676 Method and device for spectral reconstruction of an audio signal
An audio signal encoded in the form of data is spectrally reconstructed so part of the frequency spectrum of the audio signal is decoded with a spectral band...
US-7,720,515 Apparatus and method for reducing power consumption in a mobile unit
In a disclosed embodiment, a mobile unit includes a codec, a vocoder, and an audio decoder. The vocoder and the audio decoder provide respective outputs to an...
US-7,720,435 Multicast reception measurement system
A business model of satellite digital audio broadcasting, also referred to as multicasting, teaches computer improvements in business operations for the...
US-7,720,251 Embedded appliance for multimedia capture
A multimedia device includes input ports dedicated to receiving a real-time media signal and a processor system dedicated to capturing the real-time media...
US-7,720,249 Watermark embedder and reader
A watermark system includes an embedder, detector, and reader. The watermark embedder encodes a watermark signal in a host signal to create a combined signal....
US-7,720,241 Sound image localization apparatus and method and recording medium
A sound image localization apparatus for localizing a reproduced sound image at a sound source position convolves an impulse response through each path from an...
US-7,720,240 Audio signal processing
Systems and methods of processing audio signals are described. The audio signals comprise information about spatial position of a sound source relative to a...
US-7,720,238 Video-audio output device and video/audio method
According to one embodiment, a video/audio output method according to one embodiment includes detecting a playback volume value set in an external speaker...
US-7,720,231 Encoding audio signals
The encoder transforms the audio signals (x(n),y(n)) from the time domain to audio signal (X(k),Y(k)) in the frequency domain, and determines the ...
US-7,720,230 Individual channel shaping for BCC schemes and the like
At an audio encoder, cue codes are generated for one or more audio channels, wherein an envelope cue code is generated by characterizing a temporal envelope in...
US-7,720,229 Method for measurement of head related transfer functions
Head Related Transfer Functions (HRTFs) of an individual are measured in rapid fashion in an arrangement where a sound source is positioned in the individual's...
US-7,720,212 Spatial audio conferencing system
An audio conferencing system includes sending a signal of a sound at a sound location to a listening location. The system further includes establishing a...
US-7,720,129 Frequency-hopping carrier generator
The present invention discloses a frequency-hopping carrier generator, which comprises a current source, a ramp generator and a switch power amplifier. The...
US-7,720,113 Receiving apparatus, receiving system using same, and receiving method thereof
A receiving apparatus (100) includes demodulation parts (101, 102) for receiving the respective one of received signals of broadast systems to output demodulated...
US-7,719,616 Direct digital encoding and radio frequency modulation for broadcast television application
A digital audio encoder, digital video conditioner, and a digital modulator are described for producing a television broadcast signal at a desired channel...
US-7,719,615 Digital broadcast receiver and method for processing caption thereof
A digital cable broadcast receiver and a method for automatically processing caption data of various standards and types, is disclosed. The digital broadcast...
US-7,719,445 Method and apparatus for encoding/decoding multi-channel audio signal
Methods of encoding and decoding a multi-channel audio signal and apparatuses for encoding and decoding a multi-channel audio signal are provided. The apparatus...
US-7,719,362 Programmable-gain amplifier systems to facilitate low-noise, low-distortion volume control
Programmable-gain amplifier systems are provided that are particularly suited for reducing degrading audio effects such as zipper noise. In one embodiment, these...
US-7,717,842 Apparatus and method for generating pulsating noise in audio device
An apparatus and method for generating pulsating noise in an audio device are provided. The apparatus and method mix audio signals processed by an audio play...
US-7,716,153 Memory assistance system comprising of a signal processing server receiving a media signal and associated data...
Methods and systems for enhancing and/or improving one's memory are disclosed. In one embodiment of the invention, a computer-implemented memory assistance...
US-7,716,042 Audio coding
Coding an audio signal of a sequence of audio values into a coded signal includes determining first and second listening thresholds for first and second blocks...
US-7,715,859 Presence engine and a method of operating a presence engine for encoding or decoding availability status into a...
A system and a method are disclosed for a presence engine and a method of operating a presence engine for encoding or decoding availability status into a signal...
US-7,715,789 Method and apparatus mechanically providing and/or using modulated audio effects into the interior of human flesh
Method affecting the interior of human flesh, providing modulated power signal to at least one solenoid to create a modulated solenoid action delivered through a...
US-7,715,697 Broadcast program recording method and broadcast receiver, and information recorder for the same
A broadcast receiver includes a tuner section for receiving a broadcast program, an MPEG decoder 126 for converting a signal coming from the tuner section into a...
US-7,715,689 Broadcast receiver and system for performing copy prohibition and timed recording
A receiving system and a receiving device are provided for receiving and processing broadcast digital and analog signals such as video and audio programs. The...
US-7,715,578 Hearing aid having improved RF immunity to RF electromagnetic interference produced from a wireless...
A hearing aid has improved immunity to RF electromagnetic interference produced from wireless communications devices. A microphone receives audio signals from...
US-7,715,573 Audio bandwidth expansion
Bandwidth expansion for audio signals by frequency band translations plus adaptive gains to create higher frequencies; use of a common channel for both stereo...
US-7,715,571 Method for individually fitting a hearing instrument
A method for individually fitting a hearing instrument to a user, by: starting operation of the hearing instrument; pre-defining a desired target loudness...
US-7,715,569 Method and an apparatus for decoding an audio signal
A method for processing an audio signal, comprising: receiving a downmix signal, a first multi-channel information, and an object information; processing the...
US-7,715,566 Apparatus and method of automatically compensating a difference between audio signals of an analog broadcast...
An apparatus and a method of automatically compensating a difference between audio signals of an analog broadcast and a digital broadcast depending on a...
US-7,715,559 Crypto-synchronization for secure communication
An apparatus (213) and corresponding methods (FIG. 7) to facilitate maintaining crypto synchronization while processing communication signals in a communication...
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