Abstract: An electronic device and a noise cancelation method thereof are provided. The electronic device includes a driver, a driven device, and an inertial measurement device. The driver is configured to generate a driving signal, and generate a noise prediction signal according to the driving signal. The driven device receives the driving signal to execute an operation, wherein the driven device generates a vibration noise according to generated vibrations when executing the operation. The inertial measurement device is configured to sense a position status of the electronic device to generate sensing information. The inertial measurement device receives the noise prediction signal, and compensates the sensing information according to the noise prediction signal to generate compensated sensing information.

Abstract: An electronic device and a noise cancelation method thereof are provided. The electronic device includes a driver, a driven device, and an inertial measurement device. The driver is configured to generate a driving signal, and generate a noise prediction signal according to the driving signal. The driven device receives the driving signal to execute an operation, wherein the driven device generates a vibration noise according to generated vibrations when executing the operation. The inertial measurement device is configured to sense a position status of the electronic device to generate sensing information. The inertial measurement device receives the noise prediction signal, and compensates the sensing information according to the noise prediction signal to generate compensated sensing information.

Abstract: The present disclosure provides a control method applied to a display device. The display device includes a processor, a display unit and a heat dissipating unit. The control method includes: by the processor, obtaining information related to the display device, wherein the information comprises a processor utilization rate of the processor, a display status of the display unit, a wearing status of the display device, noise sound data of the heat dissipating unit, rotational speed data of the heat dissipating unit or any combination thereof; and by the processor, controlling at least one of a system sound and the heat dissipating unit according to the information related to the display device, wherein the system sound is configured to be generated by a sound output unit.

Abstract: A method for DNS processing is provided. The method is executed by an electronic device and includes the following steps: determining a plurality of TTL values, wherein each of the TTL values corresponds to one of a plurality of operating states of the electronic device, and determining whether to remove an entry from a local DNS cache in the electronic device or not according to the TTL value corresponding to the current state among the operating states of the electronic device.

Abstract: A mobile device is provided, which includes a modem processor and an application processor. The modem processor determines the channel quality between the mobile device and a wireless communication network. The modem processor calculates a counting value every time when determining the channel quality. The modem processor determines the overhead for data transmission between the mobile device and the wireless communication network according to the counting value. The modem processor determines the overhead to be low when the counting value reaches a preset value. The modem processor reduces the time for the counting value to reach the preset value when conducting a handover for the mobile device. The application processor allows or postpones a data synchronization started by an application with a server through the wireless communication network according to at least one preset condition. For example, one of the preset conditions is the aforementioned overhead.

Abstract: In a method for securely distributing data in group communication, the group has a plurality of members, and the method includes the following steps: (A) under a data recording mode, assigning one member of the group as a recording member; (B) enabling the recording member to generate and send a security key to other members of the group, to record communication contents of all the members during a group communication session, and to create an entry of recorded data therefor; and (C) enabling the other members of the group to receive and store the security key, the security key enabling the other members of the group to retrieve the recorded data from the recording member under a data retrieval mode.

Abstract: A method for DNS processing is provided. The method is executed by an electronic device and includes the following steps: determining a plurality of TTL values, wherein each of the TTL values corresponds to one of a plurality of operating states of the electronic device, and determining whether to remove an entry from a local DNS cache in the electronic device or not according to the TTL value corresponding to the current state among the operating states of the electronic device.

Abstract: A system for automatic security authentication in a wireless network includes a server and a terminal. The terminal includes a processor, a first communications unit, and a second communications unit. The server includes a database, a control unit, and a third communications unit. The processor receives an identification code of an access point through the first communications unit, and sends a message to the control unit through the second communications unit. The message includes the identification code of the access point, a user account and a user password. The control unit sends an authentication code corresponding to the identification code according to data stored in the database to the processor through the third communications unit. After receipt of the authentication code, the processor automatically logs in to the access point through the first communications unit to activate a wireless network access function.

Abstract: A method and network device for processing nested IPSec tunnels are for processing outbound packets flowing into QC and inbound packets flowing out an IPSec tunnel via the network device. The network device (3) includes a network interface unit (31), a Security Association database (32), and an IPSec processing unit (33) including a selective encryption module (331) and a selective decryption module (332). The IPSec processing unit is for generating a new IPSec packet through the selective encryption module for an outbound packet determined to be an IPSec-encrypted packet, and for obtaining a plaintext through the selective decryption module for an inbound packet determined to have undergone processing by the selective encryption module.

Abstract: In a method for securely distributing data in group communication, the group has a plurality of members, and the method includes the following steps: (A) under a data recording mode, assigning one member of the group as a recording member; (B) enabling the recording member to generate and send a security key to other members of the group, to record communication contents of all the members during a group communication session, and to create an entry of recorded data therefor; and (C) enabling the other members of the group to receive and store the security key, the security key enabling the other members of the group to retrieve the recorded data from the recording member under a data retrieval mode.

Abstract: A system for automatic security authentication in a wireless network includes a server and a terminal. The terminal includes a processor, a first communications unit, and a second communications unit. The server includes a database, a control unit, and a third communications unit. The processor receives an identification code of an access point through the first communications unit, and sends a message to the control unit through the second communications unit. The message includes the identification code of the access point, a user account and a user password. The control unit sends an authentication code corresponding to the identification code according to data stored in the database to the processor through the third communications unit. After receipt of the authentication code, the processor automatically logs in to the access point through the first communications unit to activate a wireless network access function.