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Searching: audio signal





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Patent # Description
US-7,551,227 Signal processor
A signal processor includes a picture input section for receiving a video bit stream, a video decoding section for decoding the video bit stream, a picture...
US-7,551,079 Jewelry security device
A distress signal system for protecting a person. There is an aesthetic piece; an activation module coupled to the aesthetic piece, wherein the activation module...
US-7,551,075 Ground based security surveillance system for aircraft and other commercial vehicles
A security and surveillance system for aircraft on the ground incorporates a plurality of strategically spaced sensors including video imaging generators, audio...
US-7,551,025 High-voltage transconductance circuit
The invention is a high-power transconductance circuit (HVTC) comprising three direct-coupled stages which can be substituted for a final-stage power-amplifying...
US-7,550,977 Method and apparatus to measure differential phase and frequency modulation distortions for audio equipment
A testing method or apparatus utilizes multiple frequencies applied to a device under test for measuring newly discovered frequency modulation effects. An...
US-7,549,645 Multi-player audio game and game console
A multi-player audio game system and game console enables players to compete against each other based on music that is contained in their own personal music...
US-7,549,052 Generating and matching hashes of multimedia content
Hashes are short summaries or signatures of data files which can be used to identify the file. Hashing multimedia content (audio, video, images) is difficult...
US-7,548,861 Speech recognition system
An audio operating unit of an audio apparatus is used for speech recognition. Specifically, when it is determined that a speech recognition start switch has been...
US-7,548,853 Scalable compressed audio bit stream and codec using a hierarchical filterbank and multichannel joint coding
A method for compressing audio input signals to form a master bit stream that can be scaled to form a scaled bit stream having an arbitrarily prescribed data...
US-7,548,852 Quality of decoded audio by adding noise
The present invention relates to a method of encoding and decoding an audio signal. The invention further relates to an arrangement for encoding and decoding an...
US-7,548,803 Vehicle surveillance and control system
A vehicle surveillance and control system is provided which has a camera for creating video data and a transmitter coupled to the camera for transmitting the...
US-7,548,790 Effective deployment of temporal noise shaping (TNS) filters
In the MPEG2 Advanced Audio Coder (AAC) standard, Temporal Noise Shaping (TNS) is currently implemented by defining one filter for a given frequency band, and...
US-7,548,625 System and method of audio testing of acoustic devices
A system and method of testing the audio performance of an acoustic device is provided. To test a device microphone, an audio signal is generated, provided to an...
US-7,548,539 Method and apparatus for Voice-over-IP call recording
A method of obtaining information associated with a Voice over Internet Protocol (VoIP) communication session includes tapping the computer network passively to...
US-7,548,494 Audio system, and disc reproduction device and audio output control device for use therein
Players 2A and 2B are each capable of outputting data read from a disc such as a CD or an SACD in any of signal formats including an IEEE 1394 format, an analog...
US-7,548,211 Wireless audio signal receiver device for a hearing instrument
A receiver device (10) for receiving audio signals from a remote source is provided, comprising: a magnetic loop antenna for receiving radio frequency signals...
US-7,548,160 Anti-theft alarm system for portable computer
An anti-theft alarm system includes a detecting switch portion including a first switch and a second switch, a keyboard controller (KBC), and a key of a keyboard...
US-7,547,839 Performance data processing apparatus, performance data processing method, and computer readable medium...
An automatic performance data processing apparatus which makes it possible to simply convert a plurality of automatic performance data into digital audio data in...
US-7,547,838 Tuning device for musical instruments and computer program used therein
A tuning device includes an analog-to-digital converter for converting sound waves propagated from a piano to an audio signal in synchronism with a sampling...
US-7,546,236 Anomaly recognition method for data streams
This invention identifies anomalies in a data stream, without prior training, by measuring the difficulty in finding similarities between neighborhoods in the...
US-7,546,213 Audio visualizer
The invention relates to a loudness meter including display means and data-processing means where the data-processing means establishes loudness estimates on the...
US-7,546,173 Apparatus and method for audio content analysis, marking and summing
An apparatus and method for the analysis, marking and summing of audio channel content and control data, the apparatus and method generating a summed signal...
US-7,546,088 Method and apparatus for blending an audio signal in an in-band on-channel radio system
A method for processing a composite digital audio broadcast signal to mitigate intermittent interruptions in the reception of the digital audio broadcast signal,...
US-7,546,083 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-7,545,850 Analog compression of GPS C/A signal to audio bandwidth
The present invention discloses analog methods and circuits for compression of the GPS C/A signal to audio bandwidths to improve TTFF times, as well as...
US-7,545,835 Method and apparatus for generating information signal to be recorded
A compressively-encoding-resultant video signal resulting from compressively encoding a video signal, a first compressively-encoding-resultant audio signal...
US-7,545,738 Network telephony system with enhanced interconversion of audio signals and IP packets
A telephony system (10) for communication over a network includes a kernel space (110), a media express processor operating environment (120) for providing a set...
US-7,545,439 Value added digital video receiver
Methods and systems are provided for customizing a digital broadcast receiver. Video and audio clips may be captured from a broadcast signal after receiving...
US-7,545,438 Graphics display system with video synchronization feature
A graphics integrated circuit chip is used in a set-top box for controlling a television display. The graphics chip processes analog video input, digital video...
US-7,544,881 Music-piece classifying apparatus and method, and related computer program
A bibliographic-information impression word is generated from a bibliographic information segment about selected one of music pieces. An acoustic feature...
US-7,543,322 Method for enhanced event specific features on personal video recorders
A method for enhanced presentation of sports audio video (A/V) content, the method includes: receiving a user's preferences for sports related electronic program...
US-7,543,148 Audio watermarking with covert channel and permutations
Audio signals, such as a music clip, are inserted with detectable watermarks. The inserted watermark can identify the content producer and provide a signature...
US-7,542,909 Method, system, and apparatus for repairing audio recordings
A system and method is disclosed for detecting and repairing audio recordings that contain busy signals and extended periods of silence by searching for clusters...
US-7,542,896 Audio coding/decoding with spatial parameters and non-uniform segmentation for transients
In binaural stereo coding, only one monaural channel is encoded. An additional layer holds the parameters to retrieve the left and right signal. An encoder is...
US-7,542,815 Extraction of left/center/right information from two-channel stereo sources
A digital audio signal processing system and method transforms two-channel stereo time-domain data into the frequency domain. Vector operations are performed...
US-7,542,813 Rapidly optimized wireless microphone system and method for controlling thereof
Disclosed is a wireless microphone system having a rapidly optimized MP3 audio encoder and decoder, capable of reducing the amount of calculation without losing...
US-7,542,805 Method and system for forming an acoustic signal from neural timing difference data
A non-invasive system and process for converting sensory data, e.g., visual, audio, taste, smell or touch, to neural firing timing differences in a human brain...
US-7,542,784 High quality, low power, wireless audio system
The invention relates to the field of wireless communications and more specifically to an high quality, low power wireless audio system. More specifically, the...
US-7,542,782 Method and apparatus for wireless transmission of audio signals of computer
An RF transmitting apparatus is used for converting audio signals output from a sound card of a computer to RF signals and transmitting the RF signals. The RF...
US-7,542,759 Method and apparatus for broadcasting software update information to mobile phones over a wireless...
A local area wireless communications network includes an MCU which generally operates to manage the placement of audio and other information into frames that are...
US-7,542,662 Reproduction system
The DVD player is directly mounted without a cord in the video/audio input terminal (connector section), for example, which is provided on the rear side of the...
US-7,542,660 Information recording medium, information recording and/or reproducing apparatus and method, and program...
An information recording medium is provided with: an object data file for storing object data which constitutes a series of content information, such as picture...
US-7,542,576 Howling detection circuit
In a howling detection circuit, an audio signal voltage generator generates an audio signal voltage based on a level of an input audio signal. A capacitor is...
US-7,542,460 IP phone device capable of remote controlling associated PC with control command in audio signal format
To facilitate calls made by Internet telephony through a computer, an IP phone system is provided with an audio I/F 18 for inputting and outputting audio signals...
US-7,542,096 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-7,542,067 System of using digital frames in an idle web video conferencing device
A system switches the display screen of an idle web video conferencing device to a digital frame. If there is no video conferencing signal coming into a VoIP...
US-7,541,805 Magnetic characteristics measuring method and system
A magnetic characteristics measurement system includes a superconducting quantum interference device which detects a magnetization of a sample located in the...
US-7,541,538 Multiconductor cable structures
There are provided cable architectures useful for constructing high-performance audio interconnection cables. Multiple, parallel runs of multiconductor,...
US-7,541,536 Multi-sound effect system including dynamic controller for an amplified guitar
The proposed invention is a portable multi-sound effect system providing a novel and unique solution for processing the electrical audio signals created by a...
US-7,540,697 Computer assisted detecting and restraining systems for cutting tool chatter
A computer assisted detecting and restraining system for cutting tool chatter. The system comprises a network monitor system, a signal extraction system, a...
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