Abstract: The present disclosure provides a method for aligning a master oscillator power amplifier (MOPA) system. The method includes ramping up a pumping power input into a laser amplifier chain of the MOPA system until the pumping power input reaches an operational pumping power input level; adjusting a seed laser power output of a seed laser of the MOPA system until the seed laser power output is at a first level below an operational seed laser power output level; and performing a first optical alignment process to the MOPA system while the pumping power input is at the operational pumping power input level, the seed laser power output is at the first level, and the MOPA system reaches a steady operational thermal state.

Abstract: A method for controlling a fan in a fan start-up stage including a first time period and a second time period comprises the following steps of: during the first time period, continuously providing a first driving signal to drive the fan; and during the second time period, continuously providing a second driving signal to drive the fan; wherein, the signal value of the first driving signal gradually decreases until being equal to the signal value of the second driving signal. Wherein the signal value of the first driving signal non-linearly decreases, the signal value of the second driving signal is an unchanged value. Wherein, the first time period and the second time period are adjusted for a different fan but the sum of the first time period and the second time period is always the same. A fan is also disclosed.

Abstract: A microphone waterproof structure includes: a hollow handle, a window being formed on a top face of the handle; a circuit board having at least one pushbutton and a display screen, the circuit board being mounted in the handle with the pushbutton and the display screen aligned with the window; a sealing member formed with a hollow section and a raised button, the sealing member being disposed at the window with the hollow section aligned with the display screen and the raised button aligned with the pushbutton for pressing the pushbutton; and a transparent cover board disposed at the window of the handle in contact with the sealing member. The raised button of the sealing member protrudes from a buttonhole of the cover board. The microphone has better waterproof effect.

Abstract: A microphone waterproof structure includes: a hollow handle, a window being formed on a top face of the handle; a circuit board having at least one pushbutton and a display screen, the circuit board being mounted in the handle with the pushbutton and the display screen aligned with the window; a sealing member formed with a hollow section and a raised button, the sealing member being disposed at the window with the hollow section aligned with the display screen and the raised button aligned with the pushbutton for pressing the pushbutton; and a transparent cover board disposed at the window of the handle in contact with the sealing member. The raised button of the sealing member protrudes from a buttonhole of the cover board. The microphone has better waterproof effect.

Abstract: An electronic device sets an identifier for each contact stored in a phone book, automatically creates a short message which contains the identifier according to a preset message template, and sends the short message to a phone number of the contact to inform the contact of the identifier. In response to receiving a call from a contact, the device prompts the contact to input an identifier, and detects if one or more push-button signals have been received from the contact by a dual-tone multi-frequency (DTMF) decoder. If no push-button signal has been received, the device determines the contact fails validation. Otherwise, the DTMF decoder decodes the received one or more push-button signals to determine data information input by the contact, and then the device determines if the contact passes the validation by determining the data information matches an identifier of the contact that is stored in the phone book.

Abstract: An electronic device sets an identifier for each contact stored in a phone book, automatically creates a short message which contains the identifier according to a preset message template, and sends the short message to a phone number of the contact to inform the contact of the identifier. In response to receiving a call from a contact, the device prompts the contact to input an identifier, and detects if one or more push-button signals have been received from the contact by a dual-tone multi-frequency (DTMF) decoder. If no push-button signal has been received, the device determines the contact fails validation. Otherwise, the DTMF decoder decodes the received one or more push-button signals to determine data information input by the contact, and then the device determines if the contact passes the validation by determining the data information matches an identifier of the contact that is stored in the phone book.

Abstract: A method reads text data from a musical disc in a disc drive. The musical disc includes a plurality of blocks each including a plurality of packs. Each pack is given a block number and a sequence number and written to a ring buffer of a disc drive including a first memory and a second memory.

Abstract: A multimedia reproduction system and control method thereof. A plurality of operating modes are associated with a plurality of command sets. The plurality of command sets are mapped to a plurality of control signal subsets. It is determined to which of the command sets a received control signal belongs in order to enter an operating mode associated with the determined command set and present a relevant content item for the operating mode.

Abstract: A method is disclosed for reading text data from a musical disc repeatedly recording a group including blocks each including packs each given a block number and a sequence number and writing them to a ring buffer including a first memory and a second memory.

Abstract: Menu display methods for a DVD recorder. Title list and editing functions are displayed in an integrated menu for a digital video disk in a digital video disk recorder. The integrated menu is displayed for executing playback and editing functions.

Abstract: A decoding system for decoding port data by a Baseboard Management Controller (BMC) has a microprocessor, a BMC, and a message display device. The microprocessor broadcasts the port data to a bus. The BMC retrieves the port data from the bus and decodes the port data into a message display code. The message display device then displays the message display code.