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Patent Searching and Data


Matches 1 - 50 out of 14,560

Document Document Title
WO/2021/002862A1
Acoustic echo cancellation for a video conference system is described. A location of a person in a room can be determined. An audio signal received from the location of the person can be captured using beamforming. An acoustic echo cance...  
WO/2021/003334A1
A method for separating sound sources includes digitizing acoustic signals from a plurality of sources with a plurality of microphone arrays, wherein each of microphone arrays includes one or more microphones, wherein at least one of the...  
WO/2020/240880A1
According to the present invention, the number of conversation tests required for ICC quality evaluation is reduced. An evaluation value conversion device 3 evaluates the quality of a conversation performed between a near-end acoustic ar...  
WO/2020/240768A1
The purpose of the present invention is to reduce the number of conversation tests required for quality evaluation of ICC. An evaluation value conversion device 3 converts, to a subjective evaluation value, an objective evaluation value ...  
WO/2020/232659A1
A double talk detection method, a double talk detection device and an echo cancellation system. The double talk detection method comprises: determining, according to an energy ratio between a far-end digital voice signal and a near-end d...  
WO/2020/231577A1
A computing device is provided that may include a sound processing device configured to output sound output frames via a sound output device and capture sound input frames via a sound input device. The computing device further includes a...  
WO/2020/231940A1
PTP timestamps are obtained and correlated to internal audio time and timestamps. This allows Ethernet/IP audio devices to be closely aligned with local digital audio devices to allow improved AEC operations. By performing repetitive PTP...  
WO/2020/223094A1
An endpoint device includes a microphone array and spaced-apart loudspeakers including an active loudspeaker among the loudspeakers that is closest to the microphone array. The endpoint device forms at the microphone array an audio recei...  
WO/2020/219309A1
A system includes participant nodes that unicast a voice stream to a master node and receive a multicast voice stream from the master node. The multicast voice stream may be a mixed voice stream mixing the voice streams of the participan...  
WO/2020/218146A1
The present invention addresses the problem of increasing the degree of freedom with respect to the mode of response with respect to a visitor. This intercom system (100) is provided with a response control unit (7). The response control...  
WO/2020/201969A1
A system and method for providing and managing a remote patient monitoring (RPM) system. The method is implemented by a central server, an RPM client, and a networked monitoring device. The RPM client is a software program that is execut...  
WO/2020/194375A1
An installation assistance apparatus (20) is provided with a communication device (22), a determination unit (26), a determination unit (27), a display (23), and a notification control unit (28), for example. The determination unit (26) ...  
WO/2020/198044A1
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a virtual intercom. In some implementations, a request from a visitor device to communicate with an occupant of a particular unit of t...  
WO/2020/195383A1
This portable terminal device makes it possible to display caller information and the like at the time of an incoming call. An incoming call signal receiving means (11) receives an incoming call signal including a caller number, caller i...  
WO/2020/188680A1
A visitor entry/exit management system (100) is provided with: an intercom slave device (10) and an intercom master device (15); an electronic lock control device (31) for controlling an electronic lock (30) provided in a door (113); a c...  
WO/2020/190573A1
Systems and methods for acoustic feedback cancellation. One method includes transmitting, with a transceiver, a known full-band sequence at a first time. The method includes receiving, via a microphone, a received audio signal including ...  
WO/2020/181766A1
Provided is a voice signal processing method. The method comprises the following steps: acquiring a status coefficient, a target voice signal to be processed, and a derivative signal of the target voice signal (S101); using the derivativ...  
WO/2020/176338A1
Aspects of the disclosure relate to using a display as a sound emitter and may relate to an electronic device including a display. In particular a vibration sensor such as an accelerometer is physically coupled to the display and senses ...  
WO/2020/168873A1
Provided in the present disclosure are a voice processing method, an apparatus, an electronic device, and a storage medium, the method comprising: detecting the working state of a current call system, and when the working state is a two-...  
WO/2020/171097A1
A control method for a notification system (400) containing a notification device (410) positioned inside a building (10) involves: (a) acquiring, from a delivery provider server (200), facial information pertaining to a delivery person ...  
WO/2020/154300A1
An endpoint receives audio from a remote endpoint. A first signal corresponding to the audio is received at an adaptive filter, and a filtered signal is generated. First audio is emitted at a loudspeaker based on the first signal. A micr...  
WO/2020/150864A1
The present disclosure provides an audio signal detection method, comprising: obtaining an audio signal; performing transformation between a time domain and a frequency domain on the audio signal and obtaining a transformation signal; an...  
WO/2020/147076A1
Method, apparatuses, and computer program product for overhead reduction are provided. One method may include determining a channel sparsity. The method may also include determining a shut-off ratio based on the channel sparsity ratio. I...  
WO/2020/129580A1
Provided are an intercom vestibule device, an intercom system, an information terminal, a reporting method, and a program with which the situation inside a facility can be known by a user even if the user is not inside the facility. An i...  
WO/2020/131161A1
A method for canceling acoustic far-end audio echo content includes high-pass filtering audio content received from a far end and playing the high-pass filtered audio content through a speaker, examining audio content captured by a micro...  
WO/2020/129431A1
Provided is a call system which, when allowing a terminal station device other than a terminal station device making a call to perform listening/speaking, eliminates the difficulty of speaking due to loopback voice in the terminal statio...  
WO/2020/112577A1
Techniques for real-time audio communication including supplying an initial audio signal to an audio signal processor configured to process the initial audio signal and output a processed audio signal to an audio output means, obtaining ...  
WO/2020/097828A1
An echo cancellation method and a delay estimation method. The delay estimation method estimates an echo path delay of an electronic device, so as to use the echo path delay to perform echo estimation during a call, thereby cancelling an...  
WO/2020/096673A1
Described herein are systems and methods that can adjust the performance of a transimpedance amplifier (TIA) in order to compensate for changing environmental and/or manufacturing conditions. In some embodiments, the changing environment...  
WO/2020/069310A1
A communication system and method is disclosed. The system and method provides for acoustic echo cancellation. For instance, a processor implements a non-linear loudspeaker model to approximate loudspeaker performance. Using the model, a...  
WO/2020/045075A1
The purpose of the invention is to improve security for technology for unlocking an electronic lock by using a door phone sub-unit. A business phone main device (2) comprises a PB signal receiver (22) that receives a PB signal input via ...  
WO/2020/031658A1
A communications network comprising: a communications control device (L2 switch) capable of making VLAN settings; a first VLAN set by the communications control device and allocated to communications for a monitored person-monitoring sup...  
WO/2020/026421A1
The purpose of the present invention is to provide an emergency notification system (1) by which it is possible to detect the continued pressing of a call button (13), such detection performed on the basis of a call state which is held e...  
WO/2020/020247A1
Embodiments of the present invention provide a signal processing method, a signal processing device, and a computer storage medium. The method comprises: receiving a first audio signal and playing the first audio signal by at least one l...  
WO/2020/018667A1
A method (400) includes receiving a microphone audio signal (132) and a playout audio signal (112), and determining a frequency representation (324) of the microphone audio signal and a frequency representation of the playout audio signa...  
WO/2020/008579A1
A direct call support device 100 that: calls a prescribed voice communications terminal device 210 if a press button switch 112 has been pressed on an in-car terminal device 110 that can be retrofitted inside an elevator car; and, if the...  
WO/2020/008580A1
A direct call support device 100 configured so as to: call a voice communications terminal device 210 having the highest priority among a plurality of voice communications terminal devices 210 having an order of call priority set thereto...  
WO/2020/003704A1
The objective of the present invention is to output a report which is useful for preventing the occurrence of events, and with which an event occurrence status analysis result can be visualized. Event information relating to a predetermi...  
WO/2020/004246A1
The present disclosure addresses the problem of forwarding received information to another communication system. An intercom device (1) comprises: a first communication unit (11); an input unit (12); and a processing unit (13). The first...  
WO/2020/005699A1
Techniques for acoustic echo cancellation are described herein. In an example embodiment, a system comprises a speaker, a microphone array with multiple microphones, a beamformer (BF) logic and an acoustic echo canceller (AEC) logic. The...  
WO/2019/240940A1
A software-based conferencing platform is provided. The platform comprises a plurality of audio sources providing input audio signals, the audio sources including a virtual audio device driver configured to receive far-end input audio si...  
WO/2019/225119A1
The purpose of the present invention is to provide a voice communication system with which it is possible, in a wireless apparatus having a base unit and an extension connected by one line, to adjust the type or level of a voice transmit...  
WO/2019/213769A1
Method, apparatus, and program code embodied in computer-readable media, for providing enhanced echo suppression in a conferencing system having at least one microphone and at least one speaker. At least one microphone input signal is re...  
WO/2019/202950A1
Provided is a wireless intercom system capable of facilitating sharing information among a calling slave set, a responded slave set and other slave sets in a simultaneous calling mode. A wireless intercom system 1 comprises a master devi...  
WO/2019/199369A1
An improved method and system for varying an amount of mechanical coupling in a speakerphone is disclosed. Solutions and implementations provided vary the amount of mechanical coupling between one or more speakers and one or more microph...  
WO/2019/187572A1
Provided are an interphone device which can reduce consumed power, and a program. This interphone device (1) is provided with: an operation unit (14), an imaging unit (12), a communication unit (13), and a control unit (11). The operatio...  
WO/2019/182945A1
A headphone, headphone system, and method is provided to enhance speech pick-up from a user of a headphone, by removing noise and echo components. A primary signal is derived from at least one microphone associated with the headphone. Th...  
WO/2019/167291A1
This doorbell (2) is provided with an operation unit (22) which can perform a call operation, a camera (26), a microphone (23), a speaker (24), and a control unit (21) which is connected to the operation unit (22), the camera (26), the m...  
WO/2019/164743A1
Devices and methods for howling suppression. One method (400) includes receiving, via a microphone (235), an acoustic signal from a communication device operating in an acoustic field (135) with the microphone (235). The method (400) inc...  
WO/2019/163149A1
The doorbell system (1) is provided with: multiple doorbells (2-1 through 2-n) installed at respective residences and each having an operation unit (22) and a camera (26); and a control unit (4) capable of communicating with the multiple...  

Matches 1 - 50 out of 14,560