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WO/2016/072283A1 |
In nurse call systems that enable communication from a plurality of cordless handsets with a plurality of extension terminals carried by nurses belonging to a group, the line efficiency is poor when an extension terminal belonging to the...
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WO/2016/038777A1 |
A door phone system of the present invention is constituted of a plurality of door phone devices each having a door phone master unit arranged within a room and an entryway slave unit for forwarding, to the door phone master unit, a sign...
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WO/2016/032969A1 |
A signal mixing architecture dealing with signal spatialization and distributing signals to more than two destinations that provides a single axis of pan control where a user can move a signal across N-number of channels. Inverse panning...
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WO/2016/027405A1 |
A door-phone system comprises: a radio apparatus (300) that moves together with a mobile body; a door-phone master device (500) that is disposed indoors; and an entrance slave device (400) that transfers a signal, which is received from ...
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WO/2016/025416A1 |
A method implemented during a communication event conducted between a user device and at least one further user device over a communications network, the method comprising: receiving an audio signal that is to be output from a speaker of...
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WO/2016/021108A1 |
An intercom system having one or a plurality of wireless devices (300), an intercom base unit (500), and an entrance extension unit (400) for transferring, to the intercom base unit (500), the information received by wireless communicati...
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WO/2016/001879A1 |
A communication device and method including a microphone, a first filter coupled to the microphone adapted to pass signals in an audio band only, a second filter coupled to the microphone adapted to pass signals only in an upper region o...
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WO/2016/002147A1 |
The present invention is a security system including an entryway subordinate machine and an indoor primary machine that communicates wirelessly with the entryway subordinate machine. An electromagnetic wave strength measurement means is ...
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WO/2016/002148A1 |
This security system includes an entryway subordinate machine and an indoor primary machine that communicates wirelessly with the subordinate machine, wherein an electromagnetic wave strength measurement means is provided that measures t...
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WO/2016/003955A1 |
Examples of the disclosure provide variable step size (VSS) adaptive echo cancellation in the presence of near-end noise such as dense double talk without using an explicit double talk detector and/or without using a dual-filter. During ...
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WO/2015/191990A1 |
The amount of far-field noise transmitted by a primary communication device in an open-plan office environment is reduced by defining an acoustic perimeter of reference microphones around the primary device. Reference microphones generat...
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WO/2015/177787A1 |
According to some embodiments of the present invention there is provided a method of using an earphone output speaker as a microphone for a phone call between two and/or more participants, or for measuring biometric data of a user. The m...
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WO/2015/157136A1 |
Disclosed is a device having an audio interface configured to generate from the audio signal an outgoing audio signal for supplying to a loudspeaker component. The audio interface is configured, in generating the outgoing audio signal, t...
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WO/2015/144715A1 |
The invention relates to an electronic circuit (10) for an osteophonic headset comprising: an osteophonic microphone (20) able to detect a bone-conducted vibratory signal emitted by the user; a sound emitting module (18) for transmitting...
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WO/2015/134617A1 |
A personal audio device includes a sidetone circuit with one or more adjustable coefficients that generates a sidetone signal from the output of a first microphone. The sidetone circuit has one or more adjustable coefficients for alterin...
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WO/2015/125451A1 |
This invention provides a telephone device and a telephone system using the same, said telephone device being capable of appropriately selecting, as a terminal on the other end of communication, a telephone terminal from among a pluralit...
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WO/2015/126524A1 |
Disclosed, in general, are devices that provide a substantially sound-tight chamber over a sound source while absorbing fields of sounds from the sound source. In general, the devices feature: an anechoic chamber that is configured to re...
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WO/2015/118526A1 |
A distributed system comprises a mobile device, such as a smart phone, having an application executing thereon. The mobile device is communicatively connected to a private wireless network which connects a plurality of wireless microphon...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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. ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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