Abstract: Disclosed are a Digital Enhanced Cordless Telecommunications (DECT) base station, a handset and a communication system. The DECT base station is installed with at least two different voice codecs and is configured to sequentially judge whether the voice codecs of the DECT base station match voice codecs of a handset according to a first codec information data packet sent by the handset, and when a matching is successful, send a response information to the handset to perform voice communication with the handset through a matched voice codec. By using the DECT base station can guarantee the normal voice communication between the DECT base station and the handset in the condition of installing voice codecs in the DECT base station.

Abstract: An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.

Abstract: The present application discloses a DECT base station, mobile terminal and system for transmitting data frame. The DECT base station comprises the first codec module and the first RF module. The first codec module is configured to store the acquired encoded data frame in the encoding buffer area of the first codec module; wherein, between the length of the encoded data frame and the length of a B-field data in the TDMA frame, there is a multiple relationship. The first RF module is configured to send, when receiving the first trigger signal, the encoded data frame in the encoding buffer area to mobile terminal. The present application can transmit data frame under the action of the trigger signal, to ensure the completeness and effectiveness of the data frame, thereby increasing the number of broadband voice communication channels.

Abstract: A multimode base station and a system. The multimode base station includes a wireless transceiver module, a first processing module, a second processing module, a selection and configuration module, and a network connection module. The first processing module is connected to the wireless transceiver module. The second processing module is connected to the network connection module. The first processing module is connected to the second processing module. The multimode base station operates in base mode, DM mode, or dual mode. The selection and configuration module is configured to receive a mode setting instruction from a user, and set an operating mode of the multimode base station. The multimode base station in base mode is equivalent to a base station. The multimode base station in DM mode is equivalent to a DECT manager. The multimode base station in dual mode is equivalent to a base station and a DECT manager.

Abstract: The present disclosure provides a communication method, apparatus, and system for a digital enhanced cordless telecommunications (DECT) base station. The method includes: determining, based on a communication connection request sent by a handset, whether a base station satisfies a wideband (WB) voice communication requirement of the handset, and returning communication acknowledgment information; and enabling the base station to perform WB voice communication with the handset if the communication acknowledgment information is a positive acknowledgment, or enabling the base station to perform narrowband (NB) voice communication with the handset if the communication acknowledgment information is a negative acknowledgment. The present disclosure can implement WB voice communication between a DECT base station and more than six handsets.

Abstract: The disclosure provides a wireless communication device and a method and apparatus for processing voice data. The wireless communication device includes: a radio frequency chip and a computing power chip. The radio frequency chip includes: a first processor and a radio frequency transceiver. The radio frequency chip and the computing power chip are connected via a preset communication interface, so that the first processor communicates with a second processor in the computing power chip, wherein the second processor is configured to: perform a processing of decoding data received by the radio frequency transceiver and encoding data to be sent for the radio frequency transceiver to send. The computing power chip is provided in the wireless communication device, and a codec with a good processing effect is supported by the second processor, thus the effect of the encoding or decoding processing may be improved.

Abstract: The disclosure discloses a voice signal enhancing method and device, which divide a voice signal at the present scene into multiple frame signals based on a preset time interval; feed multiple frame signals into a trained neural network based on a preset step size, perform convolution operations on multiple frame signals through skip-connected convolutional layers to obtain multiple enhanced frame signals; superpose each enhanced frame signal according to the time domain of each enhanced frame signal to obtain an enhanced voice signal. Compared with the prior art, the present disclosure automatically enhances voice signals through the neural network without manual interference, so the effects and the application scenes of voice enhancement is not necessary to be limited by the preset method and method designers, thereby reducing the occurrence frequency of signal distortion and extra noises, which in turn improves the effects of the voice signal enhancement.

Abstract: The present disclosure discloses a method and system for generating mixed voice data, and belongs to the technical field of voice recognition. In the method for generating mixed voice data according to the present disclosure, a pure voice and noise are collected first, normalization processing is performed on the collected voice data, randomization processing is performed on processed data, then GAIN processing is performed on the data, and finally filter processing is performed to obtain mixed voice data. The system for generating mixed voice data according to the present disclosure includes a collecting unit, a calculating unit, and a storage unit, the collecting unit being electrically connected to the calculating unit, and the calculating unit being connected to the storage unit through a data transmitting unit. The present disclosure provides the method and the system to meet the data requirement of deep learning.

Abstract: A DECT network clustering method includes sending, by a DECT host to a router, a multicast command that declares joining a specified multicast group; sending, by a DECT device to the router, a multicast probe message sent to a target multicast group; receiving, by the router, the multicast command and the multicast probe message, and sending, to the DECT host according to the multicast command, the multicast probe message; receiving, by the DECT host, the multicast probe message, and sending status declaration information to the DECT device; receiving, by the DECT device, the status declaration information, and initiating a TCP connection request to the DECT host in a point-to-point manner; and receiving, by the DECT host, the connection request from the DECT device, and establishing a TCP channel with the DECT device.

Abstract: The present disclosure discloses a method, an apparatus and a device for erasing handwriting on an electronic whiteboard. The method includes the following steps: obtaining first contact points; enabling an erasing mode when a quantity of the first contact points is greater than a preset value; obtaining second contact points in the erasing mode, and calculating an erasing region according to the first contact points and the second contact points; and deleting handwriting data in the erasing region. Using the method for erasing handwriting on an electronic whiteboard provided by the present disclosure can enter an erasing mode rapidly and erase handwriting effectively, thus improving the practicability of the electronic whiteboard.

Abstract: The present disclosure discloses a multi-device recording synchronization method and system, and a conference system, and belongs to the field of recording marking. For the problem in the prior art that a device that supports a recording marking function only supports generation and use on a single device, the present disclosure provides a system, including one master and a plurality of slaves. The master is connected to the plurality of slaves. The master operates according to the instruction sent by the slave and broadcasts state information globally. Through a network connection between the master and the slave, the master stores, on the master, recording and marking data sent by the slave, and synchronizes the data between devices, and a multi-device recording marking and synchronization system is applied to a conference system. The present disclosure is very convenient for use and has simple operation logic and low system costs.

Abstract: The present disclosure discloses a method for constructing a voice detection model and a voice endpoint detection system, and belongs to the technical field of voice recognition. In the method for constructing a voice detection model according to the present disclosure, audio data is first collected and a mixed voice is synthesized, feature extraction is performed on the mixed voice to obtain a 62-dimensional feature, and then the 62-dimensional feature is input to a recurrent neural network (RNN) model for training to obtain a voice detection model. The voice endpoint detection system according to the present disclosure includes a collecting unit, a calculating unit, a transmitting unit, and a terminal, the collecting unit being electrically connected to the calculating unit, and the calculating unit and the terminal being respectively connected to the transmitting unit. The voice detection model can be applied to a real-time conference communication device.

Abstract: The embodiments of the present disclosure disclose a firmware boot implementation method based on Flash chip simulation, the method comprising: when there are at least two MCUs, one of the MCUs is selected as a master MCU and each remaining MCU is as slave MCU which is connected with the master MCU respectively, and the master MCU is connected with a Flash chip; when the master MCU is started, the master MCU is started by reading firmware data in the Flash chip; when the slave MCU is started, the master MCU controls the slave MCU to be powered on, and the slave MCU sends a request for reading the firmware data to the master MCU; the master MCU transmits the request to the Flash chip, and transmits the firmware data returned by the Flash chip to the slave MCU, so as to start the slave MCU.

Abstract: The present application discloses a DECT base station, handle and communication system. The DECT base station is installed with at least two voice codecs. The DECT base station is configured to sequentially judge whether the voice codecs of the DECT base station match the voice codec of the handle according to the first codec information data packet sent by the handle, and when the matching is successful, send a response information to the handle to perform voice communication with the handle through the matched voice codec. The present application may guarantee the normal voice communication between the DECT base station and the handle in the condition of installing voice codecs in the DECT base station.

Abstract: A multimode base station and a system. The multimode base station includes a wireless transceiver module, a first processing module, a second processing module, a selection and configuration module, and a network connection module. The first processing module is connected to the wireless transceiver module. The second processing module is connected to the network connection module. The first processing module is connected to the second processing module. The multimode base station operates in base mode, DM mode, or dual mode. The selection and configuration module is configured to receive a mode setting instruction from a user, and set an operating mode of the multimode base station. The multimode base station in base mode is equivalent to a base station. The multimode base station in DM mode is equivalent to a DECT manager. The multimode base station in dual mode is equivalent to a base station and a DECT manager.

Abstract: The present application discloses a DECT base station, mobile terminal and system for transmitting data frame. The DECT base station comprises the first codec module and the first RF module. The first codec module is configured to store the acquired encoded data frame in the encoding buffer area of the first codec module; wherein, between the length of the encoded data frame and the length of a B-field data in the TDMA frame, there is a multiple relationship. The first RF module is configured to send, when receiving the first trigger signal, the encoded data frame in the encoding buffer area to mobile terminal. The present application can transmit data frame under the action of the trigger signal, to ensure the completeness and effectiveness of the data frame, thereby increasing the number of broadband voice communication channels.

Abstract: The disclosure provides a wireless communication device and a method and apparatus for processing voice data. The wireless communication device includes: a radio frequency chip and a computing power chip. The radio frequency chip includes: a first processor and a radio frequency transceiver. The radio frequency chip and the computing power chip are connected via a preset communication interface, so that the first processor communicates with a second processor in the computing power chip, wherein the second processor is configured to: perform a processing of decoding data received by the radio frequency transceiver and encoding data to be sent for the radio frequency transceiver to send. The computing power chip is provided in the wireless communication device, and a codec with a good processing effect is supported by the second processor, thus the effect of the encoding or decoding processing may be improved.

Abstract: The present disclosure provides a communication method, apparatus, and system for a digital enhanced cordless telecommunications (DECT) base station. The method includes: determining, based on a communication connection request sent by a handset, whether a base station satisfies a wideband (WB) voice communication requirement of the handset, and returning communication acknowledgment information; and enabling the base station to perform WB voice communication with the handset if the communication acknowledgment information is a positive acknowledgment, or enabling the base station to perform narrowband (NB) voice communication with the handset if the communication acknowledgment information is a negative acknowledgment. The present disclosure can implement WB voice communication between a DECT base station and more than six handsets.

Abstract: An account registration method in a Digital Enhanced Cordless Telecommunications (DECT) network cluster system includes: establishing communication with a DECT host through a DECT network cluster constructed in advance; receiving first account information allocated by the DECT host; initiating registration to a server according to the first account information, and obtaining a first registration result; sending the first registration result to the DECT host; if the first registration result is that the registration is successful, entering a first mode; if the first registration result is that the registration is not responded to, obtaining a second registration result fed back by the DECT host; if the second registration result is that the registration is successful, entering a second mode, where in the second mode, the DECT device sends SIP signaling to the DECT host so that the DECT host forwards the SIP signaling.

Abstract: A DECT network clustering system and method. Sending, by a DECT host to a router, a multicast command that declares joining a specified multicast group; sending, by a DECT device to the router, a multicast probe message sent to a target multicast group; receiving, by the router, the multicast command and the multicast probe message, and sending, to the DECT host according to the multicast command, the multicast probe message; receiving, by the DECT host, the multicast probe message, and sending status declaration information to the DECT device in a point-to-point manner according to the multicast probe message; receiving, by the DECT device, the status declaration information, and initiating a TCP connection request to the DECT host in a point-to-point manner according to the status declaration information; and receiving, by the DECT host, the connection request from the DECT device, and establishing a TCP channel with the DECT device.