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-8,363,844 Contextual audio switching for a USB controlled audio device
Systems and methods for contextual audio switching for a USB controlled audio device coupled to a processor-based host are presented. Two or more USB audio...
US-8,363,842 Playback method and apparatus, program, and recording medium
There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information...
US-8,363,822 Method and apparatus for battery switching during ringing
A method for providing a ringing signal includes providing a plurality of batteries coupled to a subscriber line interface circuit operable to generate the...
US-8,363,820 Headset with whisper mode feature
Systems and methods for operating a telecommunications device in whisper mode are presented. The method generally includes adjusting a transmit audio signal...
US-8,363,161 Systems, methods, and apparatus for synchronization of audio and video signals
Methods of processing an audiovisual signal that has a video portion and an audio portion are described. One example includes detecting a video synchronization...
US-8,363,087 Television receiver with a TV phone function
A videophone system includes a processor which selectively sets a television (TV) broadcast program viewing function mode and videophone function mode in...
US-8,362,833 Amplifier circuitry, integrated circuit and communication unit
Amplifier circuitry comprising a class-D amplifier for amplifying an audio input signal. The amplifier circuitry comprises sigma-delta modulation logic arranged...
US-8,362,832 Half-bridge three-level PWM amplifier and audio processing apparatus including the same
A half-bridge three-level pulse width modulation (PWM) amplifier includes a prescaling unit, a PWM generator configured to convert the input signal to a...
US-8,362,349 Touch pad disc jockey controller
The present invention pertains to the field of control and manipulation of a digital audio signal by a user manipulable touch sensitive control surface. The...
US-8,359,610 Audience measurement apparatus, system and method for producing audience information of a media presentation
Audience measurement methods and systems for producing audience information of a media presentation. At least one embodiment includes a moveable apparatus...
US-8,359,417 Audio/video router
A composite input signal having an audio component and a video component is routed from an input to an output by separating a stream of audio data words at an...
US-8,359,205 Methods and apparatus to perform audio watermarking and watermark detection and extraction
Methods and apparatus to audio watermarking and watermark detection and extracted are described herein. An example method includes receiving a media content...
US-8,359,198 Pre-processing and speech codec encoding of ring-back audio signals transmitted over a communication network to...
A method of pre-processing an audio signal transmitted to a user terminal via a communication network and an apparatus using the method are provided. The method...
US-8,359,195 Method and apparatus for processing audio and speech signals
A method and device for processing signals representing speech or audio via a plurality of filters that approximate behaviors of the basilar membrane of human...
US-8,359,194 Device and method for graduated encoding of a multichannel audio signal based on a principal component analysis
A system and a method for the scalable coding of a multi-channel audio signal comprising a principal component analysis (PCA) transformation of at least two...
US-8,359,113 Method and an apparatus for processing an audio signal
A method of processing an audio signal is disclosed. The present invention comprises receiving downmix signal including object signals, transforming the downmix...
US-8,359,076 Mobile wireless communications device having improved antenna impedance match and antenna gain from RF energy
A mobile wireless communications device and associated method of making same includes a housing and circuit board having a ground plane. Radio frequency (RF)...
US-8,359,064 Wireless apparatus
This invention is directed to a wireless apparatus to carry out transmission and reception by either a digital communication system or an analog communication...
US-8,358,980 Wireless audio transfer system, wireless microphone, audio transmitting apparatus, audio receiving apparatus,...
Disclosed is a wireless audio transfer system that includes an audio transmitting apparatus including a microphone and a modulating/transmitting unit for...
US-8,358,973 Communications system
An underwater communications system is provided that transmits electromagnetic and/or magnetic signals to a remote receiver. The transmitter includes a data...
US-8,358,907 Display control apparatus, display control method, and program
A display control apparatus includes a receiving unit that receives a television broadcast signal containing at least remote broadcast image information, a...
US-8,358,791 Distributed audio signal processing system having logical channel groups
A distributed audio signal processing system having a plurality of linked audio signal processing units is disclosed. Each audio signal processing unit has...
US-8,358,600 Method of transmitting data in a communication system
A method of transmitting a combined audio signal to at least one of a plurality of participants in a communication event comprising; receiving an audio signal...
US-8,358,376 Method and device for generating and detecting fingerprints for synchronizing audio and video
This invention relates to a device and a method of generating a first and a second fingerprint (102,104) usable for synchronization of at least two signals...
US-8,358,375 Method and device for accurately and easily measuring a time difference between video and audio
To solve the problems in the prior art, the present invention provides a method for measuring a time difference between digital video signals and digital audio...
US-8,358,091 Apparatus and method for generating a number of loudspeaker signals for a loudspeaker array which defines a...
An apparatus for generating a number of loudspeaker signals for a loudspeaker array defining a reproduction space includes a prestage configured to generate a...
US-8,355,921 Method, apparatus and computer program product for providing improved audio processing
An apparatus for performing improved audio processing may include a processor. The processor may be configured to divide respective signals of each channel of a...
US-8,355,910 Methods and apparatus for audio watermarking a substantially silent media content presentation
Methods and apparatus for audio watermarking a substantially silent media content presentation are disclosed. An example method to audio watermark a media...
US-8,355,909 Hybrid permanent/reversible dynamic range control system
A system for controlling dynamic range of an audio signal comprises an automatic gain control element that receives an input signal having a varying level and...
US-8,355,908 Audio signal processing device for noise reduction and audio enhancement, and method for the same
In frequency signals obtained by converting input audio signals from time-domain signals to frequency-domain signals, a level control value setting unit 5...
US-8,355,801 System and method for measuring esophagus proximity
A system and method for determining on a continuous, real-time basis the proximity of the esophagus to an endocardial catheter during mapping, ablation or other...
US-8,355,708 Method for announcing a calling party from a communication device
A system and method are disclosed for announcing a calling party from a communication device. A system that incorporates teachings of the present disclosure may...
US-8,355,674 Multi-channel transmitter
A radio transmission method and a radio transmitter device for radio transmission of an audio signal from an audio device to a radio receiver wherein an audio...
US-8,355,671 Method and apparatus for transporting video signal over Bluetooth wireless interface
A wireless wearable video headset device useful for viewing and listening to multimedia content. In one embodiment, the device operates by receiving a digital...
US-8,355,515 Gaming headset and charging method
An audio headset may comprise a case, near field microphone and far field microphone. A speaker, processor, memory, battery, charging interface and cradle...
US-8,355,514 Audio encoding to convey auxiliary information, and media embodying same
Methods of processing audio to convey auxiliary information hidden therein are provided. Various arrangements are disclosed. One alters data representing audio...
US-8,355,510 Reduced latency low frequency equalization system
A frequency equalization system is provided that substantially equalizes the room frequency responses generated by at least one loudspeaker within a listening...
US-8,355,509 Parametric joint-coding of audio sources
The following coding scenario is addressed: A number of audio source signals need to be transmitted or stored for the purpose of mixing wave field synthesis,...
US-8,355,396 Customized network congestion messaging for terminal adapters
A terminal adapter such as a residential gateway or an eMTA is configured to receive a set of signals such as a 403 message from network devices operating in a...
US-8,355,335 Managing the audio-signal loss plan of a telecommunications network
A method is disclosed that enables the monitoring, evaluation, and adjustment of a telecommunications network's audio-signal loss plan. The method can be...
US-8,355,078 HDMI transmission systems for delivering image signals and packetized audio and auxiliary data and related HDMI...
A transmission system is capable of packetizing audio and auxiliary data in compliance with an HDMI standard. The transmission system may include a register set...
US-8,354,924 Waterproof audio receiving device with object detection system
A system for facilitating the instructional training of a swimmer wherein the system is further operable to provide object detection to the swimmer of an object...
US-8,354,880 Op-R, a solid state filter
The device described herein proposes an electronic active filter void of capacitors and inductors. The circuit utilizes only operational amplifiers (Op-Amps)...
US-8,352,994 Method and system for long term monitoring of video assets
A method and system for test monitoring video assets provided by a multimedia content distribution network (MCDN) includes an expert test monitoring platform...
US-8,352,666 Signal transmission interface and digital broadcast receiving device
A signal transmission interface includes: a USB audio format encoding unit adapted to be coupled to a digital broadcast receiving end, for converting a digital...
US-8,352,280 Scalable multi-channel audio coding
An audio encoder adapted to encode a multi-channel audio signal. The encoder comprises an encoder combination module (ECM) for generating a dominant signal part...
US-8,352,258 Encoding device, decoding device, and methods thereof based on subbands common to past and current frames
An encoding device includes: a frequency region converter which converts an inputted audio signal into a frequency region; a band selector which selects a...
US-8,352,256 Adaptive reduction of noise signals and background signals in a speech-processing system
An audio input signal is filtered using an adaptive filter to generate a prediction output signal with reduced noise, wherein the filter is implemented using a...
US-8,352,251 Audio signal processing circuit
An audio signal processing circuit is provided which comprises an ADC which samples an audio signal at a predetermined sampling frequency, a high-band...
US-8,352,054 Method and apparatus for processing digital audio signal
There is a sequence of samples having values representative of a waveform. Samples corresponding to extrema including maximums and minimums in the waveform are...
← 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.