摘要:
An operating method of an electronic apparatus and a touch apparatus are provided. In the method, a touch action by a user on a touch panel is detected through a controller of the touch apparatus, so as to obtain a contact region touched by the touch action on the touch panel. Subsequently, whether the touch action includes a palm touch is determined based on a size of the contact region. Under the situation that the touch action includes the palm touch, palm touching information corresponding to the palm touch is transformed into mouse controlling information through a mouse simulating device of the touch apparatus. Further, the mouse controlling information is sent to a mouse driver through the mouse simulating device, such that the mouse driver executes mouse operation based on the mouse controlling information.
摘要:
A method for switching operating systems and an electronic apparatus are provided. A first operating system (OS) is notified to enter a power saving mode when a switching signal is received in case of running the first OS. In the power saving mode, a first running data of the first OS is stored to a first dump area of a storage unit from a system memory, a second OS is loaded to the system memory such that the second OS enters a normal operating mode.
摘要:
A processor frequency adjustment circuit for adjusting a frequency of a processor includes a voltage converting module, a first reference voltage generating module, a clock chip, a voltage comparing module. The voltage converting module converts a pulse voltage into a constant voltage. The first reference voltage generating module generates a first reference voltage. The voltage comparing module is connected with the voltage converting module, the first reference voltage generating module, and the clock chip to compare the constant voltage with the first reference voltage, and generates a first voltage level signal to a first terminal of the clock chip; the clock chip adjusts the frequency of the processor in response to obtaining the first voltage level signal.
摘要:
An automatic rotating display system is adapted to an electronic device based on a windows operating system. The electronic device includes a display for displaying one or more images. The automatic rotating display system includes a gravity sensor, a processor, a keyboard controller and a display card. The gravity sensor is configured for sensing or detecting different positional variations of the electronic device, and generating corresponding different sensing signals, according to the direction and magnitude changes of the electronic device. The processor electrically connects with the gravity sensor for receiving and processing the sensing signals. The keyboard controller connects with the processor for receiving the directional control signals and translating the directional control signals into directional control instructions. The display card connects with the keyboard controller for receiving the directional control instructions and driving the image shown on the display to rotate.
摘要:
An audio playing device for an electronic device includes an amplifier circuit, a voltage divider circuit, and a speaker. A south bridge of the electronic device is electrically connected to the amplifier circuit via the voltage divider circuit, and a sound card of the electronic device is electrically connected to the amplifier circuit. The south bridge generates electronic signals corresponding to startup prompt tones of the electronic device, and the electronic signals corresponding to startup prompt tones of the electronic device are transmitted to the speaker via the voltage divider circuit and the amplifier circuit to play. The sound card processes audio files, and electronic signals corresponding to the processed audio files are transmitted to the speaker via the amplifier circuit to play.
摘要:
An exemplary PCB defines a circular first via and includes a first signal layer, a second signal layer, a first reference layer between the first and second signal layer, and a signal transmission line having a first portion on the first signal layer and a second portion on the second signal layer. The first signal layer has a circular first weld pad coaxial with the first via and electrically connected to the first portion, the second layer has a circular second weld pad coaxial with the first via and electrically connected to the second portion. The first weld pad is electrically connected to the second weld pad through the first via, the reference layer defines a first through hole coaxial with the first via, the radius of the first via is R1, the radius of the first through hole is R2, R2=R1+d1, 1.5 mil≦d1≦4 mil.
摘要:
A method for fast resuming a computer system from a shutdown state is provided. The computer system comprises a basic input output system (BIOS), a system memory and a storage device storing a system memory data of the system memory and a used system memory block address table before the computer system enters the shutdown state. The method comprises receiving a starting signal for power supplying the computer system and starting the storage device. A fast boot built-in program of the BIOS is started and, according to the used system memory block address table, the fast boot built-in program sequentially reads the stored system memory data from the storage device and writes the read system memory data into the system memory with a use of an optimized read-and-write block size as a read-and-write unit. The computer system enters a suspended state and is resumed from the suspended state.
摘要:
A motherboard includes a first slot arranged for mounting a first type of memory, a second slot arranged for mounting a second type of memory, and a voltage regulating circuit electronically connected to the first slot and the second slot. The first memory and the second memory are alternatively mounted on the motherboard, the voltage regulating circuit detects which type memory is currently mounted on the motherboard and outputs voltages suitable for the type of the memory mounted on the motherboard accordingly.
摘要:
A test fixture has a base, a positioning board, multiple probes, a cushion board, multiple springs and multiple inner bolts. The base has a recess defined in the base. The positioning board is mounted in the recess. The probe is mounted on the positioning board and each probe has a top contacting end. The cushion board is mounted slidably in the recess and has a socket hole to hold a semi-finished chip package. The springs are mounted in the positioning board between the recess and the cushion board and press and bias the cushion board upward. The inner bolts are mounted slidably through the cushion and the springs and the are mounted securely in the base. The cushion board and springs reduce the impact from the semi-finished chip package to the probes so that the probes would not be damaged.