Abstract: The present disclosure provides a method and an apparatus for noise reduction, and a headset. The method of noise reduction includes: acquiring a first reference noise signal; acquiring an initial direction of desired speech in response to a trigger signal; acquiring a real-time direction of desired speech based on a real-time orientation of the headset and the initial direction of desired speech, the real-time orientation being obtained by orientation tracking for the headset; filtering out a desired speech signal from the first reference noise signal to acquire an undesired noise signal, the desired speech signal being extracted in the real-time direction of desired speech; and filtering the undesired noise signal to output an inverse noise signal for speaker playback. Thus, using the method of noise reduction, not only the undesired noise in the ambient noise can be cancelled, but also the desired speech signal can be retained.

Abstract: A starting method for a multi-mode IoT device includes: receiving a starting operation aimed at a multi-mode IoT device; detecting partition starting flag bits in a memory in response to the starting operation, wherein the memory includes a plurality of first partitions that respectively store a communication mode starting code and include the partition starting flag bits, the partition starting flag bit indicates that a corresponding partition is a bootable partition when set to be effective, and the partition starting flag bit indicates that the corresponding partition is a non-bootable partition when set to be ineffective; and running the communication mode starting code in the first partition corresponding to the effective partition starting flag bit when the effective partition start flag bit is detected, so that the multi-mode IoT device works in a communication mode corresponding to the corresponding first partition.

Abstract: A communication mode selection method for a multimode IoT device which includes receiving and responding to a trigger operation for selecting a communication mode and causing a multimode IoT device to enter a multimode broadcast state. In the multimode broadcast state, the multimode IoT device sends, to a network device N, network beacons or connection request messages corresponding to the communication modes supported by the multimode IoT device itself. N is an integer greater than or equal to 2. A network connection response message is received from the network device triggering, on the basis of the network connection response message, the multimode IoT device to enter a target communication mode corresponding to the network connection response message. The IoT device is also capable of selecting a communication mode and a computer storage medium.

Abstract: Disclosed is a method of allocating time slots for a wireless headset in a communication period, the wireless headset comprising a first earpiece and a second earpiece that are independent from each other, wherein the method comprises: sending, by the first earpiece, a request message to a mobile device in a first time slot of the communication period; sending, by the mobile device, audio data to the first earpiece and the second earpiece in a plurality of time slots subsequent to the first time slot based on the request message; sending, by the first earpiece, a first control message to the second earpiece in a second time slot after the plurality of time slots; and sending, by the second earpiece, a second control message to the first earpiece in a third time slot subsequent to the second time slot based on the first control message.

Abstract: The present invention relates to communication technologies and provides a method and a device for FSK/GFSK demodulation, the method comprises: determining a digital information vector group {Vl(i)} of a codeword a[k] to be demodulated and a corresponding phase matching vector group {?i(i)} within the duration of (2M+1)T; determining a received phase vector {tilde over (?)}(i) of a received FSK/GFSK baseband signal ?(t,a); determining an average phase difference ?l between {tilde over (?)}(i) and ?l(i); calculating the phase matching degree Ql between {tilde over (?)}(i) and ?l(i) after removing the impact of the average phase difference ?l, and determining an l value corresponding to the phase matching degree Ql being the maximum; and determining the a[k], corresponding to the l value, in the digital information vector Vi(i) as a demodulation result.

Abstract: Disclosed is a wireless headset and a signal transmission method for the same, the method comprises: sending, by a first earpiece, channel information about an audio transmission channel to a second earpiece after establishing the audio transmission channel with a mobile device; receiving, by the first earpiece, audio data from the audio transmission channel, and sending a response message to the mobile device; and receiving, by the second earpiece, audio data from the audio transmission channel according to the channel information about the audio transmission channel. The mobile device enables the two earpieces both to receive the audio data without maintaining two channels and it only requires the first earpiece to return a response message to the mobile device; and the difference between the energy consumption of the two earpieces is relatively small, and the mobile device only needs to maintain one channel, thus the complexity is relatively low.

Abstract: The present disclosure relates to the smart home field, disclosing a synchronization control method within wireless network, a wireless network and a smart home device. In the present disclosure, controlling a terminal to broadcast a control command directed at multiple smart home devices; characterized in, the control command carries a count-down time duration for command execution time; continuing to broadcast the control command by a smart home device which receives the control command within its wireless broadcast coverage area, and carrying in the broadcasted control command the processing time for the smart home device to process the control command; determining command execution time by respective smart home devices to execute the control command according to the count-down time duration in the received control command, as well as the total processing time of respective smart home devices which the control command passes on its transmission path.

Abstract: The present invention discloses a node upgrading method and system in a mesh network. The node upgrading method in the mesh network comprises: performing the wireless firmware OTA upgrade by the first node according to the terminal instruction; simultaneously performing OTA upgrade on at least part of the second nodes in the mesh network by the first node using the broadcast channel after completion of the OTA upgrade, wherein the second node is a node other than the first node in the mesh network. Embodiments of the invention also provide a node upgrading system in the mesh network.

Abstract: The present invention relates to the smart home field and discloses a node of a wireless network and a status updating method thereof. In the present invention, each node in the wireless network periodically sends status broadcast message according to the preset period, and the status broadcast message at least carries the identifier and current status information of the present node. The nodes receiving the status broadcast messages record the current status information of the other nodes carried in the received status broadcast messages, wherein the recorded current status information of the other nodes is carried in the sent status broadcast message if the each node in the wireless network has received the status broadcast message of the other nodes when needing to send the status broadcast message.

Abstract: The present disclosure relates to the smart home field, disclosing a synchronization control method within wireless network, a wireless network and a smart home device. In the present disclosure, controlling a terminal to broadcast a control command directed at multiple smart home devices; characterized in, the control command carries a count-down time duration for command execution time; continuing to broadcast the control command by a smart home device which receives the control command within its wireless broadcast coverage area, and carrying in the broadcasted control command the processing time for the smart home device to process the control command; determining command execution time by respective smart home devices to execute the control command according to the count-down time duration in the received control command, as well as the total processing time of respective smart home devices which the control command passes on its transmission path.

Abstract: The present disclosure relates to the electronic communication field and discloses a dual-Mode device and a method for achieving the simultaneous communication therein. The dual-mode device has a dual-mode protocol stack scheduling mechanism and uniformly schedules the transmission event of the Bluetooth protocol stack and the ZigBee protocol stack. The method comprising the following steps: after matching the dual-mode device with a Bluetooth host as a slave and the ZigBee target device as a control device, the dual-mode device conducting the Bluetooth connection maintenance according to preset interval and processing the information exchange with the ZigBee target device at each Bluetooth connection interval.

Abstract: The present disclosure relates to a ZigBee/Bluetooth dual-mode radio frequency transceiver architecture, in which, a dual-mode baseband and firmware determines hardware parameter of a receiving module or sending module based on a first mode or a second mode; a radio frequency front-end module is used for receiving or sending a first mode signal or a second mode signal; a receiving module is used for converting the first mode signal received by the radio frequency front-end module into a first mode baseband digital signal, or converting the second mode signal received by the radio frequency front-end module into a second mode baseband digital signal and outputting the first mode baseband digital signal or the second mode baseband digital signal to the dual-mode baseband and firmware; a sending module is used for converting the first mode baseband digital signal outputted by dual-mode baseband and firmware into the first mode signal.