Abstract: A BLUETOOTH connection method includes an electronic device establishing basic rate (BR)/enhanced data rate (EDR) connection to an accessory device. The electronic device determines that the electronic device supports a dual-mode connection and that the accessory device also supports the dual-mode connection. The dual-mode connection includes the BR/EDR connection and a BLUETOOTH Low Energy (BLE) connection. The electronic device disconnects the BR/EDR connection to the accessory device, and establishes the BLE connection to the accessory device.

Abstract: The present disclosure relates to feed structures of antennas, antennas, and communication devices. One example feed structure includes a first cavity with a first signal cable and a second cavity with a second signal cable. The first signal cable includes a first main part and a first elastic bending part located at one end of the first main part. The first main part extends along a first direction. An extension direction of the first elastic bending part intersects with the first direction, and the first elastic bending part can be deformed towards the extension direction of the first main part. A first hole is provided between the first cavity and the second cavity. The first cavity and the second cavity are connected through the first hole.

Abstract: A signal transceiver apparatus includes a base having a first cavity and a second cavity. A first interface and a first filter circuit are in the first cavity. The first filter circuit is connected to the first interface. The first filter circuit is configured to transmit a signal of a first frequency band. A second interface, a third interface, and a second filter circuit are in the second cavity. The second filter circuit is connected to the second interface. The second filter circuit is configured to transmit a signal of a second frequency band. A connecting component includes a first end in the first cavity connected to the first filter circuit, a third end in the second cavity connected to the second filter circuit, and a second end connected to the third interface. The connecting component is configured to transmit signals of the first and the second frequency bands.

Abstract: An antenna includes a first signal cable, a second signal cable, a combiner, a combined transmission line, a plurality of first filters and a plurality of cavities. The first signal cable is configured to transmit a first signal. Output ends of the first signal cable and the second signal cable are connected to an input end of the combined transmission line through the combiner. The plurality of first filters are each electrically connected to the first signal cable and are respectively located in at least two different cavities of the plurality of cavities. The plurality of first filters are configured to filter a second signal thereby generating the first signal.

Abstract: A BLUETOOTH connection method includes an electronic device establishing basic rate (BR)/enhanced data rate (EDR) connection to an accessory device. The electronic device determines that the electronic device supports a dual-mode connection and that the accessory device also supports the dual-mode connection. The dual-mode connection includes the BR/EDR connection and a BLUETOOTH Low Energy (BLE) connection. The electronic device disconnects the BR/EDR connection to the accessory device, and establishes the BLE connection to the accessory device.

Abstract: A filter comprising a cavity, a circuit board located in the cavity, and a filter branch is provided. A power divider circuit is disposed on the circuit board, and includes an input end, a main feeder, and an output end, wherein both the input end and the output end are electrically connected to the main feeder, and the main feeder transmits a signal that is input at the input end and is output at the output end. The filter branch includes a first interface and a first filter line, wherein the first interface is disposed at an opening of the cavity, the first filter line is located outside the cavity, the first filter line is electrically connected to the first interface, and the first interface is electrically connected to the main feeder. The first filter line in the filter branch is disposed outside the cavity.

Abstract: This application discloses a Bluetooth connection method, and relates to the field of short-range wireless communications technologies. The method includes: A terminal sends a service inquiry request to a Bluetooth device after the terminal and the Bluetooth device establish an asynchronous connectionless ACL link. The service inquiry request includes information about a service supported by the terminal. The Bluetooth device sends a service inquiry response to the terminal in response to the service inquiry request. The service inquiry response includes information about a service supported by the Bluetooth device. The terminal performs pairing with the Bluetooth device after the terminal receives the service inquiry response sent by the Bluetooth device. The terminal establishes a connection based on a first service to the Bluetooth device when both the terminal and the Bluetooth device support the first service. This reduces a period of time for establishing a Bluetooth service connection.

Abstract: The present disclosure relates to phase shifters, antennas, and base stations. One example phase shifter includes a cavity, a built-in printed circuit board (PCB), and a stress relief portion. The stress relief portion is connected to the PCB, and the stress relief portion is configured to reduce a stress generated due to different coefficients of thermal expansion (CTE) of the cavity and the PCB.

Abstract: This application discloses feeding devices, antennas, and electronic devices. In one implementation, a feeding device comprises a phase shifter, a combiner, and a jumper component, wherein the phase shifter has a first cavity, the combiner has a second cavity adjacent to and connected to the first cavity, and the phase shifter is connected to the combiner through the jumper component.

Abstract: This application discloses a feeding device, an antenna, and an electronic device, and belongs to the communications field. The feeding device includes a phase shifter, a combiner, and a jumper component. The phase shifter has a first cavity, the combiner has a second cavity, the first cavity is adjacently connected to the second cavity, and the phase shifter is connected to the combiner by using the jumper component. In this application, costs of the feeding device can be reduced, and a signal loss of the feeding device can be reduced.

Abstract: A phase shifter may include a cavity body, and a fixed circuit board and a phase shift unit that are located inside the cavity body, and the phase shift unit being capable of moving relative to the fixed circuit board. A power division circuit is disposed on the fixed circuit board. The power division circuit includes an input end, a main feeder, a node, at least two output ends, a filtering stub, and at least two output circuits. The main feeder is electrically connected between the input end and the node. The filtering stub is electrically connected to the main feeder, and the filtering stub is in an open-circuit state. The at least two output circuits are respectively electrically connected between the node and the at least two output ends. The phase shift unit is disposed in correspondence with the at least two output circuits.

Abstract: A phase shifter may include a cavity body, and a fixed circuit board and a phase shift unit that are located inside the cavity body, and the phase shift unit being capable of moving relative to the fixed circuit board. A power division circuit is disposed on the fixed circuit board. The power division circuit includes an input end, a main feeder, a node, at least two output ends, a filtering stub, and at least two output circuits. The main feeder is electrically connected between the input end and the node. The filtering stub is electrically connected to the main feeder, and the filtering stub is in an open-circuit state. The at least two output circuits are respectively electrically connected between the node and the at least two output ends. The phase shift unit is disposed in correspondence with the at least two output circuits.

Abstract: An outer rearview mirror and side turning lamp structure of automobile with flow lamp function including a light source of side turning lamp, a light source of flow lamp and a power drive assembly, the light source of side turning lamp and light source of flow lamp both connect with the power drive assembly, and the power drive assembly having a power circuit module, a control circuit module, a drive circuit module of side turning lamp and a drive circuit module of flow lamp, and the power circuit module simultaneously connects with the drive circuit module of side turning lamp and drive circuit module of flow lamp by the control circuit module. The outer rearview mirror and side turning lamp structure of automobile added the flow lamp function, and different degrees of brightness change of the light source, and the control methods of the side turning lamp with flow lamp.

Abstract: An outer rearview mirror and side turning lamp structure of automobile with flow lamp function including a light source of side turning lamp, a light source of flow lamp and a power drive assembly, the light source of side turning lamp and light source of flow lamp both connect with the power drive assembly, and the power drive assembly having a power circuit module, a control circuit module, a drive circuit module of side turning lamp and a drive circuit module of flow lamp, and the power circuit module simultaneously connects with the drive circuit module of side turning lamp and drive circuit module of flow lamp by the control circuit module. The outer rearview mirror and side turning lamp structure of automobile added the flow lamp function, and different degrees of brightness change of the light source, and the control methods of the side turning lamp with flow lamp.

Abstract: A method and device for controlling and determining communication transmission route is disclosed, which is used to determine the transmission route among a group of Bluetooth phone bases, and the control message is transmitted through the transmission route in succession so as to establish a communication network. A control and manipulation device includes a navigation map module and a route determination module. The navigation map module receives the registration procedure carried out by the group of Bluetooth phone bases through Bluetooth wireless broadcast, and obtaining through which the relative position information of the group of Bluetooth phone bases in the communication network, so as to establish a navigation map. The route determination module determines the transmission route based on the navigation map and through a route determination procedure, such that the control message is transmitted from the respective phone base to the control and manipulation device via the other phone bases.

Abstract: Disclosed is a message exchange system among wireless phone bases, which enables a wireless communication device to roam among a plurality of wireless phone bases. The message exchange system includes a control and manipulation device and a plurality of wireless phone bases. The plurality of wireless phone bases are used to connect to the Private Automatic Branch Exchange (PABX), and transmitting the voice communication through the PABX, and in addition, sending out the control message by means of wireless communication so as to realize the roaming. The control and manipulation device includes a control and manipulation data base and adopts the pertinent processing procedures corresponding to the classification of the control message, after receiving the control message.