Abstract: Provided are a method, a device and storage medium for synchronizing states, which belongs to the field of communication technology. Synchronizing states includes acquiring a usage state of target contact information of a target user, detecting whether the usage state of the target contact information has changed based on previously-stored usage states of respective contact information, if the usage state of the target contact information has changed, acquiring a target contact list for the target user, and synchronizing the usage state of the target contact information to contacts in the target contact list.

Abstract: A method includes: monitoring a plurality of wireless working frequency bands supported by a smart terminal; when a Peer to Peer (P2P) data packet is received at any of the wireless working frequency bands, analyzing the P2P data packet and obtaining device information of a smart device; and establishing a wireless connection with the smart device at the wireless working frequency band according to the device information.

Abstract: A method for determining remaining battery service time of a mobile terminal includes determining a plurality of battery usage times, wherein each battery usage time corresponds to a respective predefined battery power level interval. Upon receipt of a request to determine the remaining battery service time, the mobile terminal determines a current battery power level of the mobile terminal and compares the current battery power level with at least one of the plurality of battery usage times and their associated predefined battery power level intervals to determine the remaining battery service time. The remaining battery service time is then displayed on the mobile terminal.

Abstract: A method is provided for updating a connection parameter of a low-power Bluetooth device. The method includes, upon detection of a local switch of remote control modes, transmitting, to a controlled device, a prompt message indicating the local switch, such that a request for updating a connection parameter is generated based on the prompt message and transmitted to a Bluetooth remote control device. A valid time for the connection parameter is carried in the request, and is earlier than a default valid time. The method also includes monitoring, for every connection interval after the local switch, whether the request is received locally. The method also includes upon detection of the request, transmitting, to the controlled device, a response for agreeing to update the connection parameter. The method further includes updating the connection parameter between the Bluetooth device and the controlled device, when the valid time for the connection parameter arrives.

Abstract: The present disclosure relates to a method and a device for optimizing an air mouse remote controller. The optimization method includes: obtaining operation instructions from an air mouse remote controller at a first time point; determining a first control selected by the air mouse remote controller on an operation interface of a terminal device at a second time point, the second time point being earlier than the first time point, and a time difference between the first time point and the second time point being a preset length of time; and performing an operation corresponding to the first control.

Abstract: An air mouse remote controller includes a control module, an air mouse module, and a movement sensor connected to the air mouse module and configured to collect a movement trajectory of the controller. The air mouse module performs an air mouse function according to the movement trajectory and generates an air mouse control signal. The control module sends the air mouse control signal to a terminal device to control movement of a corresponding cursor. A key assembly includes a two-stage key. When detecting that the two-stage key is pressed to its first stage, the control module sends a selection instruction to the terminal device to fix the cursor at its current position, and when detecting that the two-stage key is pressed to its second stage, the control module sends an operation instruction to the terminal device to execute an operation corresponding to the position of the cursor.

Abstract: An icon position interchanging method includes receiving a first sliding signal triggered by a first dragging operation over a first icon and a second sliding signal triggered by a second dragging operation over a second icon, determining a first sliding vector according to the first sliding signal and a second sliding vector according to the second sliding signal, judging whether the first sliding signal and the second sliding signal satisfy a preset condition according to a first length of the first sliding vector and a second length of the second sliding vector, and performing position interchanging on the first icon and the second icon if the first sliding signal and the second sliding signal satisfy the preset condition.

Abstract: Provided is an etching-before-packaging horizontal chip three-dimensional system level metal circuit board structure comprising a metal substrate frame; the metal substrate frame is provided with base islands and pins therein; the front faces of the base islands are provided with chips; the front faces of the chips are connected to the front faces of the pins via metal wires; conductive posts are disposed on the front faces or back faces of the pins; the peripheral areas of the base islands, the areas between the base islands and the pins, the areas between the pins, the areas above the base islands and the pins, the areas below the base islands and the pins, and the exteriors of the chips, the metal wires and the conductive posts are all encapsulated with molding compound.

Abstract: A method for providing a collision alert is provided. The method includes: receiving position information of one or more vehicles; determining, based on the position information and road information, that a vehicle is about to encounter another vehicle at a curve; and providing the collision alert to the vehicle indicating a potential collision at the curve.

Abstract: A control method for controlling audio playing includes obtaining a playing instruction corresponding to a multi-media file, detecting whether a current playing environment meets a preset condition, and controlling playing of audio data in the multi-media file if the current playing environment meets the preset condition. The current playing environment includes at least one of a current audio output channel, the multi-media file, and a current time.

Abstract: The present disclosure relates to methods and devices for locating a wearable device. The method includes: determining, by the wearable device, whether a first short range communication connection between the wearable device and a first terminal is disconnected; and when it is determined that the first short range communication connection is disconnected, broadcasting, by the wearable device, a notification message configured to instruct a second terminal to: establish a second short range communication connection with the wearable device, and send a connection notification to a server, wherein the server locates the wearable device according to the second terminal.

Abstract: Provided is an etching-before-packaging horizontal chip three-dimensional system level metal circuit board structure comprising a metal substrate frame; the metal substrate frame is provided with base islands and pins therein; the front faces of the base islands are provided with chips; the front faces of the chips are connected to the front faces of the pins via metal wires; conductive posts are disposed on the front faces or back faces of the pins; the peripheral areas of the base islands, the areas between the base islands and the pins, the areas between the pins, the areas above the base islands and the pins, the areas below the base islands and the pins, and the exteriors of the chips, the metal wires and the conductive posts are all encapsulated with molding compound.

Abstract: A master device transmits beacon messages to a plurality of slave devices. The beacon messages specify upstream time slots, downstream time slots, and contention-based time slots. To register a respective slave device with the master device, the respective slave device transmits an association request to the master device during a contention-based time slot and receives an association response from the master device during a first downstream time slot. In response to receiving the association response, the respective slave device transmits an authentication request to the master device during an upstream time slot and receives an authentication response from the master device during a second downstream time slot.

Abstract: The present disclosure relates to a method and an apparatus for controlling a smart device. The method includes: when a first hand gesture is detected, preparing to switch a control relationship according to the first hand gesture and a first mapping relationship, the first mapping relationship including a corresponding relationship between hand gestures and respective control functions; when a second hand gesture is detected, determining a target controlled device according to the second hand gesture and a second mapping relationship, the second mapping relationship including a corresponding relationship between hand gestures and locations of respective controlled devices; establishing a first control relationship with the target controlled device; acquiring a third hand gesture; and controlling, according to the third hand gesture and the first mapping relationship, the target controlled device to perform an operation corresponding to the third hand gesture.

Abstract: The present disclosure relates to a method, a device and a system in a smart home system for projection on a screen. The method may include: receiving predetermined type of signal, and establishing a predetermined type of connection with a second electronic device which sends the predetermined type of signal; according to the predetermined type of connection, notifying the second electronic device to start a WiFi P2P connection service; and after the first electronic device starting the WiFi P2P connection service, establishing a WiFi P2P connection with the second electronic device which has started the WiFi P2P connection service, and performing projection on a screen of the second electronic device.

Abstract: According to the embodiments of the present disclosure, a first terminal device may create a peer-to-peer (P2P) group, and then determine a Service Set Identifier (SSID) and a connection password of the P2P group, and then send the SSID and the connection password to a second terminal device so that the second terminal device is able to connect to the first terminal device according to the SSID and the connection password. In this way, prior to establishment of the wireless connection, the second terminal device may acquire the SSID and the connection password of the P2P group created by the first terminal device, thus second terminal device may directly use the SSID and the connection password to connect to the first terminal device without cumbersome discovery and negotiation processes as used in establishment of a conventional P2P connection.

Abstract: The embodiments of the present disclosure provide a method and a device for performing configuration. Taking an example in which a first terminal device is a mobile terminal device and a second terminal device is a smart television, the method implemented in the mobile terminal device includes: generating a WIFI frame containing configuration data for configuring the smart television; and broadcasting the WIFI frame so that the smart television is able to configure itself according to the configuration data after receiving the WIFI frame. In the embodiments of the present disclosure, no connection needs to be pre-established between the mobile terminal device (such as a mobile phone and the like) and the smart television.

Abstract: Provided are a packaging-before-etching flip chip 3D system-level metal circuit board structure and technique thereof. The metal circuit board structure comprises a metal substrate frame; the front face of the metal substrate frame is provided with pins; the front faces of the pins are provided with conductive posts; chips are installed in a flip manner between the pins via underfills; the peripheral areas of the pins, the conductive posts and the chip are encapsulated with molding compound, the top of the molding compound being parallel to the tops of the conductive posts; and the surfaces of the metal substrate frame, the pins and the conductive posts exposing out of the molding compounds are provided with an anti-oxidation layer, thus solving the problem of limited functionality and application of a traditional metal lead frame due to the fact that objects cannot be embedded therein.

Abstract: A first-packaged and later-etched three-dimensional flip-chip system-in-package structure and a processing method thereof are provided. The package structure includes: a pad (1), a pin (2); a conductive pillar (3) disposed on an upper surface of the pin (2); a first die (4) flipped on an upper surface of the pad (1); a first molding material or epoxy resin (9) for encapsulating with a peripheral region of the conductive pillar (3) and the first die (4); an anti-oxidation layer (11) provided on a surface of the conductive pillar (3) exposed from the first molding material or epoxy resin (9); a second die (8) flipped on a lower surface of the pad (1) and the pin (2); and a second molding material or epoxy resin (10) for encapsulating with the region of the lower surfaces of the pad (1) and the pin (2) and a peripheral region of the second die (8).

Abstract: The present invention relates to a first-packaged and later-etched normal chip three dimension-on-chip metal circuit board structure and a processing method for manufacturing the same, the structure includes: metal substrate frame (1); a lead (3) provided in the metal substrate frame (1); a conductive pillar (4) provided in a top surface of the lead (3); a chip is mounted normally on a top surface of the metal circuit frame (1) or between the leads (3); a metal wire (6) via which a top surface of the chip (5) is connected to a top surface of the lead (3); a molding material (8) with which a periphery region of the lead (3), the conductive pillar (4), the chip (5) and the metal wire (6) is encapsulated, with the molding material (8) being flushed with a top of the conductive pillar (4).