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Patent Searching and Data


Matches 151 - 200 out of 14,267

Document Document Title
WO/2015/115090A1
Provided is a communication control device with which it is possible to suppress communication failures such as congestion when a plurality of common area devices are transmitting video signals at the same time, and possible to effective...  
WO/2015/107382A1
An object of the invention is providing a method and device for packet acoustic echo cancellation. The echo cancelling device obtains one or more source voice packet streams in a multi-party call, selects packets from the one or more sou...  
WO/2015/099990A1
A method and system for controlling access to access points of an establishments are described. A call may be initiated from an access box to a smart device thereby activating the smart device to stream video via the Internet from an IP ...  
WO/2015/086229A1
An audio echo suppressor comprises a first receiver (201) which receives a first audio signal for rendering by a loudspeaker (205) and a second receiver (211) which receives a microphone signal. A linear echo-cancellation filter (213) ge...  
WO/2015/084683A1
Various methods and systems for estimating a room impulse response between an audio source and an array of microphones are described. In one example, a method includes receiving audio signals at a microphone of an array of microphones. T...  
WO/2015/080927A1
Disclosed is a computer system comprising an audio processing module, an echo cancellation module and a control module. The audio processing module is configured to process an audio signal and output the processed audio signal to e.g. a ...  
WO/2015/078105A1
A method for processing audio of a synchronous classroom, which is applied to the field of network communications and comprises the steps of: playing, by a main classroom teaching client, an audio resource via a sound card 1; dividing ou...  
WO/2014/179135A8
A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo d...  
WO/2015/036271A3
The invention relates to a device for producing a plurality of loudspeaker signals on the basis of a virtual source object which has a source signal and metadata determining a position or a kind of the virtual source object. The device c...  
WO/2015/061029A1
A processing system can include a tracking microphone array; audio tracker circuitry connected to the tracking microphone array to track an audio source based on an audio input from the array; communication microphones; and a processor. ...  
WO/2015/043150A1
An echo cancellation method comprises: an acquisition microphone acquiring a sound signal; a conversation microphone acquiring a near-end voice signal; cancelling an echo component in the near-end voice signal according to the sound sign...  
WO/2015/044915A1
The present disclosure relates to a circuit and method for cancelling the acoustic feedback in public address systems, sound reinforcement systems, hearing aids, teleconference systems or hands-free communication systems, comprising prov...  
WO/2015/037542A1
In order to suitably notify a health care provider of a change in the condition of a patient in a hospital room, this notification system comprises: a detection means that generates action information about a subject in accordance with c...  
WO/2015/036858A1
An object of the invention is providing a method and device for packet acoustic echo cancellation. The echo cancelling device acquires source voice packet streams between two calling ends, determines transmission direction information co...  
WO/2015/036271A2
The invention relates to a device for producing a plurality of loudspeaker signals on the basis of a virtual source object which has a source signal and metadata determining a position or a kind of the virtual source object. The device c...  
WO/2015/036857A1
An object of the invention is providing a method and device for packet acoustic echo cancellation. The echo cancelling device acquires source voice packet streams to be cancelled packet acoustic echo between two calling ends, and updates...  
WO/2015/015174A1
According to the present invention there is provided a door entry system comprising: a status indicating door bell; and a portable controller. The status indicating door bell comprises: a user input interface adapted to receive a calling...  
WO/2014/099281A9
A method for controlling acoustic echo cancellation and an audio processing apparatus are described. In one embodiment, the audio processing apparatus includes an acoustic echo canceller for suppressing acoustic echo in a microphone sign...  
WO/2014/194013A1
Echo removal techniques are described. As part of the echo removal, a first model estimate of the echo in the received audio signal is determined using a first model and a second model estimate of the echo is determined using a second mo...  
WO/2014/194011A1
Echo removal techniques are described. An echo path of the echo in a received audio signal is modelled using a first model to determine a first model estimate of the echo. The first model estimate is used to determine a first performance...  
WO/2014/194009A1
Echo removal techniques are described. As part of the echo removal, an adaptive model estimate of the echo in a received audio signal is determined using an adaptive model based on an outputted audio signal and the received audio signal....  
WO/2014/193874A1
A method of echo cancellation in an acoustic system, comprising a first user device and at least one further user device, the method comprising, at the first user device: detecting an audio signal received from the at least one further u...  
WO/2014/194012A1
An echo path of the echo in a received audio signal is modelled using an adaptive model to determine an adaptive model estimate of the echo. The adaptive model estimate is used to determine an estimate of the echo power of the echo in th...  
WO/2014/181330A1
A device for removal of unwanted components in an audio signal, the device comprising a processor, coupled to memory, configured to receive reference and processed inputs into memory where the processed input is a result of a reduction p...  
WO/2014/182751A1
A method of reducing noise in an acoustic system, the method comprising at a first user terminal: receiving an audio signal from at least one further user terminal over a network; executing a communication client on a processing unit, th...  
WO/2014/179135A1
A method for multi-channel echo cancellation and noise suppression is described. One of multiple echo estimates is selected for non-linear echo cancellation. Echo notch masking is performed on a noise-suppressed signal based on an echo d...  
WO/2014/171915A1
A system and method for acoustic echo cancellation is provided. Embodiments may include receiving, at one or more microphones, an audio reference signal from an audio speaker. Embodiments may also include filtering the audio reference si...  
WO/2014/147552A1
An audio apparatus comprises a circuit (201) for applying a dynamic range adjustment processing to an input signal to generate an output signal for rendering by a loudspeaker (101). The dynamic range adjustment processing is dependent on...  
WO/2014/150211A1
The present application provides an acoustic echo mitigation apparatus and method, an audio processing apparatus and a voice communication terminal. According to an embodiment, an acoustic echo mitigation apparatus is provided, including...  
WO/2014/137612A1
Apparatus and methods for audio noise attenuation are disclosed. An audio signal analyzer can determine whether an input audio signal received from a microphone device includes a noise signal having identifiable content. If there is a no...  
WO/2014/070417A3
Methods and systems monitoring performance of acoustic echo cancellation are described. An audio output is generated by applying a first acoustic echo cancellation algorithm to an audio input. One or more performance metrics for the firs...  
WO/2014/126933A1
A personalized (i.e., speaker-derivable) bandwidth extension is provided in which the model used for bandwidth extension is personalized (e.g., tailored) to each specific user. A training phase is performed to generate a bandwidth extens...  
WO/2014/119331A1
A communication interface unit of each residential information panel is configured so as to engage in data communication with a corresponding controller or with the controller and at least one device installed in a corresponding dwelling...  
WO/2014/066367A8
A system and method are presented for acoustic echo cancellation. The echo canceller performs reduction of acoustic and hybrid echoes which may arise in a situation such as a long-distance conference call with multiple speakers in varyin...  
WO/2014/107949A1
An embodiment of the present invention provides a voice conference noise processing method and apparatus. The method comprises: obtaining the background noise levels of conference participators; obtaining the average background noise lev...  
WO/2014/100794A1
Method, user device and computer program product for suppressing echo. An audio signal is outputted from a speaker. A microphone receives an audio signal which includes echo resulting from said outputted audio signal. An echo path of the...  
WO/2014/100793A1
Method, user device and computer program product for suppressing echo. An audio signal is output from a speaker. A microphone receives an audio signal, wherein the received audio signal includes an echo resulting from said outputted audi...  
WO/2014/094359A1
Disclosed are an echo cancellation device and method for a small-scale hand-free voice communication system. The system includes a telephone receiver, a main telephone transmitter and a secondary telephone transmitter, with the distance ...  
WO/2014/099281A1
A method for controlling acoustic echo cancellation and an audio processing apparatus are described. In one embodiment, the audio processing apparatus includes an acoustic echo canceller for suppressing acoustic echo in a microphone sign...  
WO/2014/099940A1
Example apparatus and methods concern performing stereo acoustic echo cancellation using a correlation based filter adaptation control approach and without using stereo de-correlation. An embodiment includes a stereo adaptive filter that...  
WO/2014/100792A1
Method, user device and computer program product for suppressing echo. An audio signal is output from a speaker. A microphone receives an audio signal, wherein the received audio signal includes an echo resulting from the outputted audio...  
WO/2013/166567A8
The present invention relates to a method for transmitting data between two devices, including the encoding of the digital data as acoustic digital signals, the transmission of this digital signal for playback by the loudspeakers of the ...  
WO/2014/078016A1
A method includes accessing signal data descriptive of a transmission sequence and pre-determined values associated with the transmission sequence. The signal data and the pre-determined values may be stored in a memory. The method inclu...  
WO/2014/073183A1
A gateway device equipped with: a first interface unit, connected to an intercom system; a second interface unit, connected to an IP network that includes wireless access devices that communicate with wireless terminals; a relationship m...  
WO/2014/070417A2
Methods and systems monitoring performance of acoustic echo cancellation are described. An audio output is generated by applying a first acoustic echo cancellation algorithm to an audio input. One or more performance metrics for the firs...  
WO/2014/066367A1
A system and method are presented for acoustic echo cancellation. The echo canceller performs reduction of acoustic and hybrid echoes which may arise in a situation such as a long-distance conference call with multiple speakers in varyin...  
WO/2014/063755A1
The application relates to a portable electronic device (200), comprising: at least one loudspeaker (217); and audio rendering means (201) configured for adapting an audio signal (215) before submitting the audio signal (215) to the at l...  
WO/2014/055207A1
An access control reader enhances audio data captured by a beamforming microphone array. The access control reader determines a direction to a user and then utilizes beamforming in the direction of the user to enhance the user's voice. T...  
WO/2014/052745A1
Embodiments of client device and method for audio or video conferencing are described. An embodiment includes an offset detecting unit, a configuring unit, an estimator and an output unit. The offset detecting unit detects an offset of s...  
WO/2014/045526A1
Provided is a wireless communication device whereby the size of an external memory can be greatly reduced, as well as shortening the startup time and the access time to the external memory, and extending the battery life. In this wireles...  

Matches 151 - 200 out of 14,267