Abstract: The present disclosure relates to a phenyl-modified polydimethylsiloxane (PDMS) separation membrane, a fabrication method thereof, and a use thereof in the separation of an aromatic compound, and belongs to the technical field of separation membrane materials. A phenyl-modified PDMS separation membrane comprising a substrate layer and a selective layer is provided.

Abstract: Provided is wireless communication method, apparatus and system, and a device. The method comprises receiving, by a wireless end device, first audio data transmitted by a wireless headset, in a first time slot through a first wireless communication channel therebetween; receiving task operation data input by each input device, in a corresponding time slot through a wireless communication channel therebetween, where the corresponding time slot is different from the first time slot; and executing at least one corresponding operation based on at least one of the first audio data and the task operation data. According to the present disclosure, various tasks including the game task are implemented in a wireless communication environment, and the first audio data and task operation data are received in different time slots during the execution of the tasks, such that the overall communication latency can be rather small.

Abstract: The present disclosure provides a method, a system and an apparatus for headset communication, a device and a storage medium. The method includes receiving, by a wireless headset in response to a call request from a mobile terminal, first audio data sent by the mobile terminal, within a first time slot through a first wireless communication channel pre-established between a wireless headset and the mobile terminal; receiving, by the wireless headset in response to an audio transmission request from a wireless device, second audio data sent by the wireless device, within a second time slot through a second wireless communication channel pre-established between the wireless headset and the wireless device; and mixing, by the wireless headset, the received first and second audio data to acquire mixed audio data for playback, where the first time slot and the second time slot belong to different unit groups of time slots.

Abstract: Provided is a wireless audio synchronization method, a wireless audio playback device and a wireless audio transceiving system. The method includes sampling based on a first local clock signal of the wireless audio playback device a received wireless signal; determining a peak moment corresponding to a current wireless data packet; counting based on the first local clock signal a time difference between peak moments corresponding to the current and previous wireless data packets and adjusting a clock cycle of the first local clock signal based on a counting result so that the counting result approaches a predetermined count value; and playing after a predetermined number of clock cycles of the first local clock signal the data segment or its preset part according to a second local clock signal of the wireless audio playback device, where there is a fixed frequency multiple relationship between the first and second local clock signals.

Abstract: The present disclosure provides a method and system for transmitting audio data wirelessly. The method comprises in each cycle of at least one cycle: sending, by an audio data sending device, an audio packet simultaneously to both a first audio playback device and a second audio playback device; and feeding back respective response messages to the audio data sending device by the first audio playback device and the second audio playback device in sequence in response to receiving the audio packet for playback. Thus, the audio data can be played at low latency according to the present disclosure.

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: Disclosed is a pairing method and a pairing system for a wireless headset, the pairing method comprising: establishing, by an intermediate device, wireless communication connections respectively with a first wireless earpiece and a second wireless earpiece, and sending pairing information respectively to the first wireless earpiece and the second wireless earpiece based on the established wireless communication connections; and establishing, by the first wireless earpiece and the second wireless earpiece, a wireless communication link between the first wireless earpiece and the second wireless earpiece based on the pairing information. By the above pairing method, pairing between the first wireless earpiece and the second wireless earpiece can be realized conveniently.

Abstract: Disclosed is a Bluetooth headset device and a communication method for the same. The method comprises: establishing by a first earpiece serving as a Bluetooth master device a Bluetooth connection with a data source device; establishing by the first earpiece and a second earpiece a wireless connection therebetween; and according to a preset cyclicity, exchanging by the first and second earpieces control information within a first time period, sending by one of the first and second earpieces that serves as a primary earpiece a Bluetooth transmission request to the data source device, and receiving by the first and second earpieces simultaneously Bluetooth data sent by the data source device in response to the request, within a second time period, wherein the role of the primary earpiece is switched between the first and second earpieces in an alternate mode or a switching on-demand mode based on the control information.

Abstract: Disclosed is a Bluetooth headset device and a communication method for the same. The method comprises: establishing by a first earpiece serving as a Bluetooth master device a Bluetooth connection with a data source device; establishing by the first earpiece and a second earpiece a wireless connection therebetween; and according to a preset cyclicity, exchanging by the first and second earpieces control information within a first time period, sending by one of the first and second earpieces that serves as a primary earpiece a Bluetooth transmission request to the data source device, and receiving by the first and second earpieces simultaneously Bluetooth data sent by the data source device in response to the request, within a second time period, wherein the role of the primary earpiece is switched between the first and second earpieces in an alternate mode or a switching on-demand mode based on the control information.

Abstract: Disclosed is a pairing method and a pairing system for a wireless headset, the pairing method comprising: establishing, by an intermediate device, wireless communication connections respectively with a first wireless earpiece and a second wireless earpiece, and sending pairing information respectively to the first wireless earpiece and the second wireless earpiece based on the established wireless communication connections; and establishing, by the first wireless earpiece and the second wireless earpiece, a wireless communication link between the first wireless earpiece and the second wireless earpiece based on the pairing information. By the above pairing method, pairing between the first wireless earpiece and the second wireless earpiece can be realized conveniently.

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 provides a method and a device for measuring a distance between wireless nodes, the method comprises: performing, by a first wireless node I and a second wireless node R, a preset measurement of a phase difference in a preset half-duplex communication mode, based on a first operating frequency and a second operating frequency synchronously changed multiple times, to determine a first phase difference H0 and a second phase difference H1; and determining a distance between the first wireless node I and the second wireless node R by performing a differential operation of the first phase difference H0 and the second phase difference H1. According to the above method, there is no need for transceivers of the first wireless node I and the second wireless node R to work simultaneously, and a distance between wireless nodes may also be measured for the transceivers working in the half-duplex mode.

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: 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: 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: 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: A method for registration-less paging includes establishing a mobile device identity for a mobile device in a wireless network, determining a time instance for the identified mobile device to listen to pages, and sending a page from the wireless network to the identified mobile device during the determined time instance. In one example, the method is for a network-initiated attach procedure and includes receiving a request to attach a mobile device in a wireless network, generating a paging message based on the request to attach the mobile device, sending a paging indicator to a mobile device based on the paging message during a time instance based on an agreed rule, and accepting an attach procedure from the mobile device based on the paging indicator.