Abstract: A device for treating a user's skin using plasma is provided. The device comprises a plasma generation assembly and a power supply. The plasma generation assembly comprises a discharge electrode including a first surface; a first dielectric material layer provided on the first surface of the discharge electrode and the first surface, a ground electrode surrounding the discharge electrode, and an insulation member spacing around the discharge electrode from the ground electrode. The power supply configured to apply power to the plasma generation assembly so that plasma is generated from the first surface of the discharge electrode to the ground electrode and between the first dielectric material layer and the user's skin.

Abstract: The present invention provides a control method of a receiver. The control method includes the steps of: when the receiver enters a sleep/standby mode, continually detecting an auxiliary signal from an auxiliary channel to generate a detection result; and if the detection result indicates that the auxiliary signal has a preamble or a specific pattern, generating a wake-up control signal to wake up the receiver before successfully receiving the auxiliary signal having a wake-up command.

Abstract: A device for installing wireless video and audio transmitter in a soft housing comprises the following components. A supporter is installed in the soft housing, the supporter being formed by a metal plate of high heat conductivity for supporting the soft housing. A sensor is fixed to the supporter for generating video signals. A microphone is fixed to the surface of the soft housing for generating audio signals. A main circuit board is fixed to the supporter and has a RF module fixed thereon. The RF module serves for transmitting the audio and video signals to a receiver through the antenna. The power box is positioned in the soft housing for providing DC power.