Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Searching: audio signal





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-7,580,832 Apparatus and method for robust classification of audio signals, and method for establishing and operating an...
An apparatus for producing a fingerprint signal from an audio signal includes a means for calculating energy values for frequency bands of segments of the audio...
US-7,580,762 Microphone with ultrasound/audible mixing chamber to secure audio path
Methods, microphones, and systems are provided for processing sound waves. The sound waves are detected with a portable device (such as a microphone) and an...
US-7,580,671 Audio system, radio record module and methods for use therewith
A radio record module includes a radio data system (RDS) decoder module that decodes a received RDS signal, that has an associated audio signal, into received...
US-7,580,535 Binaural synchronization
Binaural hearing devices are operated by establishing a communication link between the devices. The communication link is exclusively for transmitting non-audio...
US-7,580,532 Multi-channel pulse width modulation apparatus
Disclosed are multi-channel PWM (Pulse Width Modulation) apparatuses and methods for modulating PCM-based multi-channel audio signals read from an optical medium...
US-7,580,531 Dynamic range reducing volume control
An audio amplifier is provided having a compressor with an automatically-adjustable compressor. Compression is linked to the volume control in an inverse...
US-7,580,530 Audio characteristic correction system
An audio characteristic correction system adapted to an audio surround system in which a sound emitted from a directional speaker (an array speaker) is reflected...
US-7,579,958 Audio power meter
An audio power meter includes a circuit for measuring the power of an amplified audio signal outputted by an audio power amplifier to which the audio power meter...
US-7,579,908 Digital audio amplifiers, electronic systems, and methods
An embodiment of an electronic system includes a digital audio amplifier having a continuous time modulator adapted to generate a difference signal between an...
US-7,579,832 Cross-drive impedance measurement circuits for sensing audio loads on CODEC channels
An audio system includes a CODEC audio jack having left and right audio ports and a jack sense circuit. The jack sense circuit includes left and right amplifiers...
US-7,578,505 Electronic game device with hand and foot controls
An electronic game device is disclosed that can simultaneously engage at least two players each at a user position arranged on opposite ends or sides of a...
US-7,577,410 Audio apparatus
An audio apparatus is provided that permits selection of either analog or digital audio signals in execution of a scan operation. A radio receiver 300 comprises...
US-7,577,337 Audio/video data recording/reproducing device and method, and audio/video data reproducing device and method
An audio/video data recording/reproducing device is provided that allows all video and audio signals, which can be displayed by a display of the audio/video data...
US-7,577,273 Steganographically encoded video, deriving or calculating identifiers from video, and related methods
This application relates, e.g., to processing video and audio. One claim recites a method including: utilizing a multi-purpose electronic processor programmed...
US-7,577,263 System for audio signal processing
A sound reproduction system comprising a digital audio signal input (1), a digital audio signal processor (2, DSP) and a digital audio signal output (3) wherein...
US-7,577,262 Microphone device and audio player
A signal generating section generates a main signal and a noise reference signal. A determining section determines whether a level ratio is larger than a...
US-7,577,260 Method and apparatus to direct sound
The invention relates to sonic steerable antennae and their use to achieve a variety of effects. The invention comprises a method and apparatus for taking an...
US-7,577,259 Method and apparatus for extending band of audio signal using higher harmonic wave generator
A higher harmonic wave generator generates a higher harmonic wave of an inputted audio signal having a predetermined band based on the inputted audio signal....
US-7,577,095 Low latency digital audio over packet switched networks
Method and Apparatus for delivering audio signals from a source node to a destination node on a network. The apparatus uses a number of switches that transmit...
US-7,576,748 Graphics system with embedded frame butter having reconfigurable pixel formats
A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and...
US-7,576,665 System and method for receiving analog and digital input
A system and a method are provided for receiving analog and digital audio input via a single audio input connector. The method includes receiving an input signal...
US-7,576,649 Anti-theft alarm system for portable computer
An anti-theft alarm system for a portable computer, the anti-theft alarm system includes a controller, a button for delivering an anti-theft enabling signal to...
US-7,576,606 Digital PWM amplifier having a low delay corrector
Systems and methods for performance improvements in digital switching amplifiers using a low delay corrector. In one embodiment, a digital pulse width modulation...
US-7,576,604 All-digital class-D audio amplifier
An all-digital class-D audio amplifier and method of digitizing an analog signal comprises a pulse-width modulation (PWM) wave generator for generating a PWM...
US-7,576,565 Crossbar waveform driver circuit
A driving waveform circuit includes a crossbar array having input columns and output rows wherein the crossbar array is configured to store data in the form of...
US-7,576,277 Tuning device for musical instruments and computer program for the same
A portable tuning device samples discrete values on a fundamental frequency component of an audio signal, which is equivalent to sound waves produced in a...
US-7,574,917 Method for in-situ measuring of acoustic attenuation and system therefor
There is provided a method for measuring in-situ the acoustic attenuation obtained by a hearing protection device worn by a user, comprising: positioning the...
US-7,574,355 Apparatus and method for determining a quantizer step size
For determining a quantizer step size for quantizing a signal including audio or video information, a first quantizer step size as well as an interference...
US-7,574,276 System and methods for providing automatic classification of media entities according to melodic movement...
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing...
US-7,574,264 Multirate cochlear stimulation strategy and apparatus
A cochlear implant system in which information about the periodicity of a received audio signal in each filter channel is used as a factor in determining the...
US-7,574,180 Transmitter
A transmitter for modulating an externally supplied audio signal according to a predetermined modulation system and for transmitting an obtained modulation...
US-7,574,011 Detection device
The invention is based on the idea of providing a detection device which is capable of distinguishing whether a microphone or audio signal processing arrangement...
US-7,574,010 System and method for adjusting an audio signal
Disclosed is a system and method of adjusting an audio signal for a communication device. The method comprises: identifying a characteristic associated with the...
US-7,574,009 Method and apparatus for controlling the reproduction in audio signals in electroacoustic converters
The aim of the invention is to control the bass reproduction of audio signals in electroacoustic transducers based on the psychoacoustic principle denoted by the...
US-7,573,917 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-7,573,868 Audio/video synchronization using audio hashing
Audio and video frames are synchronized by hashing an audio frame at a sender and combining the resultant hash value with the video frame. The audio frame is...
US-7,572,969 Method for making electronic tones close to acoustic tones, recording system for the acoustic tones, tone...
A grand piano generates acoustic tones through vibrations of strings and sound board so that the acoustic tones are converted to analog audio signals at...
US-7,572,968 Electronic musical instrument
The present invention enables a user to select and control on an electronic musical instrument, just by selecting a registration data set, the mode for...
US-7,572,143 Interfacing between a computer and audio/video equipment
Embodiments for interfacing between a computer and audio/video equipment are provided. One embodiment comprises a cable that includes a docking cable having a...
US-7,571,455 TV having language selection function and control method of the same
A television (TV) with a language selection function and an associated control method is provided which allows a user to select a desired display language...
US-7,571,253 Method for providing video and audio data to a plurality of clients
Provided is a method for controlling a video server providing video and audio data to a plurality of clients via a communication network in real time. Analog...
US-7,571,244 Audio-video data switching and viewing system
A computer system and method providing for viewing and switching of audio-video data. The system comprises: a plurality of audio/video sources containing...
US-7,570,977 Personal communication system
A personal wearable communication and speaker entertainment system which provides improved quality audio response and which does not interfere with the wearer's...
US-7,570,974 Bluetooth.RTM. enabled hearing aid
The present invention relates to a method and apparatus for improving interference suppression processing and control in hearing aids communicating with a mobile...
US-7,570,817 Signal compression and decompression
A method of data compression, for example for image or audio signals, comprises encoding the data using a transform such as a wavelet transform or DCT, and...
US-7,570,693 Low noise digital to pulse width modulated converter with audio applications
The present invention relates to digital-to-analog conversion. In particular, it has application to conversion of pulse code modulated signals, such as used in...
US-7,570,674 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-7,570,304 Method, apparatus and computer program product for synchronizing presentation of digital video data with...
The present invention provides a method for matching the rate of presentation of digital video data at a receiver/client with the rate the server is serving the...
US-7,569,018 Apparatus and method for noninvasively detecting the quality of cardiac pumping
An auditory pulse monitor for noninvasively detecting the amplitude of arterial pulses on a beat-by-beat basis. A light-weight optical sensor including a light...
US-7,568,929 Audio jack connector and connector assembly incorporating the same
An audio jack connector adapted for mating with a plug connector which has an insulating loop thereon includes a dielectric housing, a plurality of signal...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | Next →

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.