Abstract: A wireless charging apparatus for a wireless power transmission system and a method are provided. The apparatus includes a voltage conversion circuit, an excitation coil, n first resonance coils, and a controller, where n is greater than or equal to 3. The voltage conversion circuit is connected to the excitation coil and converts a power grid voltage into a high-frequency alternating current voltage. The excitation coil generates a magnetic field based on the high-frequency alternating current voltage. The n first resonance coils are arranged in different directions and conducts the magnetic field, and the controller monitors power statuses of the first resonance coils, and enable or disable the first resonance coils based on the power statuses.

Abstract: A coating production device for an optical film includes a base plate. Supporting rods are fixed on a top at both front and rear sides of the base plate. A transverse plate is jointly fixed on outer walls at opposite surfaces of the two supporting rods by a fixing rod. A Y-shaped tube is mounted on a bottom of the transverse plate. The Y-shaped tube includes a vertical tube and branch tubes communicating with outer walls at two sides of the vertical tube. Tops of the two branch tubes are respectively mounted on the bottom at two sides of the transverse plate by a mounting rod.

Abstract: A cloud-based network receives a public key of a public/private key pair and a credential for accessing secrets associated with a user network. The cloud-based network receives, from a user interface configured to facilitate remote control of the user network, a command to be executed at the user network. The cloud-based network encrypts, using the public key, the credential and the command. The cloud-based network forwards, to one or more client devices, the encrypted credential and command. The client devices are configured to decrypt the encrypted credential and command using a private key of the public/private key pair and execute the command on the user network.

Abstract: A recording method is presented, including, when an internet protocol private branch exchange (IP PBX) receives a recording instruction sent by any terminal of multiple terminals that are in a same call, sending, by the IP PBX, a first recording indication to a working recording server, which is connected to a mirrored port of a mirror switch, of at least one recording server, acquiring, by the IP PBX, an IP address and a number of a port for transmitting a media stream that are of the working recording server, and sending a terminal identifier to the working recording server; and sending, by the IP PBX, to the working recording server using the IP address and the port number, a media stream that is generated when the multiple terminals that are in the same call have the call, and sending a second recording indication to the working recording server.

Abstract: A recording method is presented, including, when an internet protocol private branch exchange (IP PBX)receives a recording instruction sent by any terminal of multiple terminals that are in a same call, sending, by the IP PBX, a first recording indication to a working recording server, which is connected to a mirrored port of a mirror switch, of at least one recording server, acquiring, by the IP PBX, an IP address and a number of a port for transmitting a media stream that are of the working recording server, and sending a terminal identifier to the working recording server; and sending, by the IP PBX, to the working recording server using the IP address and the port number, a media stream that is generated when the multiple terminals that are in the same call have the call, and sending a second recording indication to the working recording server.

Abstract: A method for manufacturing a distributed feedback laser array includes: forming a bottom separate confinement layer on a substrate; forming a quantum-well layer on the bottom separate confinement layer; forming a selective-area epitaxial dielectric mask pattern on the quantum-well layer; forming a top separate confinement layer on the quantum-well layer through selective-area epitaxial growth using the selective-area epitaxial dielectric mask pattern, the top separate confinement layer having different thicknesses for different laser units; removing the selective-area epitaxial dielectric mask pattern; forming an optical grating on the top separate confinement layer; and growing a contact layer on the optical grating. The present disclosure achieves different emission wavelengths for different laser units without significantly affect emission performance of the quantum-well material.

Abstract: A method for manufacturing a distributed feedback laser array includes: forming a bottom separate confinement layer on a substrate; forming a quantum-well layer on the bottom separate confinement layer; forming a selective-area epitaxial dielectric mask pattern on the quantum-well layer; forming a top separate confinement layer on the quantum-well layer through selective-area epitaxial growth using the selective-area epitaxial dielectric mask pattern, the top separate confinement layer having different thicknesses for different laser units; removing the selective-area epitaxial dielectric mask pattern; forming an optical grating on the top separate confinement layer; and growing a contact layer on the optical grating. The present disclosure achieves different emission wavelengths for different laser units without significantly affect emission performance of the quantum-well material.

Abstract: A detecting method is provided, which includes extracting an Internet Protocol Identifier value from an obtained data packet. The detecting method may further include searching in a record table containing a correspondence relationship between an Internet Protocol Identifier value and a terminal serial number to determine whether the record table contains an adjacent Internet Protocol Identifier value smaller than the extracted Internet Protocol Identifier value and modifying the adjacent Internet Protocol Identifier value that is smaller than the extracted Internet Protocol Identifier value to be the extracted Internet Protocol Identifier value if the record table contains the adjacent Internet Protocol Identifier value smaller than the extracted Internet Protocol Identifier value. Otherwise, the detecting method may also include, adding a new record of the extracted Internet Protocol Identifier value and the corresponding terminal serial number into the record table.

Abstract: A detecting method is provided, which includes extracting an Internet Protocol Identifier value from an obtained data packet. The detecting method may further include searching in a record table containing a correspondence relationship between an Internet Protocol Identifier value and a terminal serial number to determine whether the record table contains an adjacent Internet Protocol Identifier value smaller than the extracted Internet Protocol Identifier value and modifying the adjacent Internet Protocol Identifier value that is smaller than the extracted Internet Protocol Identifier value to be the extracted Internet Protocol Identifier value if the record table contains the adjacent Internet Protocol Identifier value smaller than the extracted Internet Protocol Identifier value. Otherwise, the detecting method may also include, adding a new record of the extracted Internet Protocol Identifier value and the corresponding terminal serial number into the record table.

Abstract: A message forwarding method includes: receiving a SIP registration request message carrying a contact address; obtaining the contact address carried in the SIP registration request message; and determining that the contact address is one of SIP proxy server addresses in a network stored in advance; and executing an abnormal process on the SIP registration request message. The present invention also discloses a network device. The message forwarding method and network device in the present invention can prevent a SIP loop attack.

Abstract: This invention relates to a method for manufacturing selective area grown stacked-layer electro-absorption modulated laser structure, comprising: step 1: forming a selective growth pattern of a modulator section on a substrate; step 2: simultaneously growing a 2-stacked-layer active region structure of a modulator MQW layer and a laser MQW layer by the first epitaxy step; step 3: etching gratings, and removing the laser MQW layer in the modulator section by selective etching; and step 4: completing the growth of the entire electro-absorption modulated laser structure by a second epitaxy step.

Abstract: This invention relates to a method for manufacturing selective area grown stacked-layer electro-absorption modulated laser structure, comprising: step 1: forming a selective growth pattern of a modulator section on a substrate; step 2: simultaneously growing a 2-stacked-layer active region structure of a modulator MQW layer and a laser MQW layer by the first epitaxy step; step 3: etching gratings, and removing the laser MQW layer in the modulator section by selective etching; and step 4: completing the growth of the entire electro-absorption modulated laser structure by a second epitaxy step.