Abstract: An automatic telescopic connector includes an interface module and a transmission module. The interface module includes a trigger unit, a connector, and a telescopic bracket. The bracket includes a fixture. The trigger unit is configured to sense an input signal and output a trigger signal when the input signal meets a trigger condition. The transmission module is coupled to the interface module. The automatic telescopic connector is coupled to the control module. The control module outputs different signals to control the connector of the interface module to connect a connector of the external device or to disconnect from the connector of the external device.

Abstract: In an unlocking password setting method executed by a first electronic device, the first electronic device is connected to a second electronic device. Handwriting of a user is captured from an input device when a command of setting the unlocking password of the second electronic device is received. The handwriting is translated into a digital password. The digital password is stored in the first electronic device and the second electronic device as the unlocking password of the second electronic device.

Abstract: A method for answering an electronic device includes the following blocks. A predefined speed value is adjusted. An incoming communication requirement is received. A moving speed value is detected. The moving speed value is determined if is greater than the predefined speed value. The incoming communication requirement is answered when the moving speed value is not greater than the predefined speed value.

Abstract: An electronic device enclosure includes a cover, a base, a locking member mounted to the cover, a sensing member mounted to the base, and a control device mounted to the base. The base defines a receiving portion. The locking member is capable of being received in the receiving portion after the cover rotates toward the base. The sensing member is triggered after being received in the receiving portion. The control device controls the locking member to lock in the receiving portion after the sensing member is triggered, thereby preventing the cover from rotating away from the base.

Abstract: An electronic device includes an audio sensor, an audio output unit, a pulse width modulation (PWM) unit connected to the audio output unit, and a control chip. When the audio output unit outputs the audio signal, the audio sensor detects a volume level of the environment sound. The control chip determines a volume level of the audio signal according to the volume level of the environment sound and preset associations between volume levels of the audio signal outputted by the audio output unit and volume levels of the environment, and determines a duty cycle of the PWM unit according to the determined volume level and the maximum volume level. The control chip then outputs the duty cycle to the PWM unit, to adjust a current volume level of the audio signal outputted by the audio output unit to the determined volume level.

Abstract: A temperature key includes a temperature sensor, a microprocessor chip, a storage device, a port, a record button and an enter button. When the temperature key is connected to a computing device and the record button is pressed, the temperature sensor is triggered to record a temperature signal input by a user. The microprocessor chip converts the temperature signal into a password, stores the password in the storage device, and sends the password to the computing device to lock the computing device. When the temperature key is connected to the computing device again and the enter button is pressed, the microprocessor chip retrieves the password from the storage device and sends the password to the computing device. The computing device is unlocked in response to determining that the received password matches the password stored in the computing device.

Abstract: A method for adjusting an observation distances between an user and a display device is provided. When the display device determines that the user is squinting and determines a distance value between the user and the display device is larger than a predetermined value, the display device controls a driving unit to drive a display unit of the display device to move toward to the user. A display device is also provided.

Abstract: A pressure key includes a pressure sensor, a microprocessor chip, a storage device, a port, a record button and an enter button. When the pressure key is connected to a computing device and the record button is pressed, the pressure sensor is triggered to record a pressure signal input by a user. The microprocessor chip converts the pressure signal into a password, stores the password into the storage device, and sends the password to the computing device to lock the computing device. When the pressure key is connected to the computing device again and the enter button is pressed, the microprocessor chip retrieves the password from the storage device and sends the password to the computing device. The computing device is unlocked if the received password matches the password stored in the computing device.

Abstract: An operation tracking method creates a database recording unique identifiers of users and operation listings of the users. The method records operation information of the user in the operation listing of the user, and recovers each finalized data to the corresponding original data according to the operation information of the user when the user logs out of the electronic device. The method further recognizes the unique identifier of a current user when the current user logs into the electronic device, and recovers each original data to the corresponding finalized data according to the operation information of the current user recorded in the operation listings of the current user corresponding to the unique identifier of the current user.

Abstract: A power supply includes a power supply module supplying power for a motherboard, a receiving module, a controlling module, and a switch module. The receiving module receives an unique authorized code and determines if the unique authorized code matches a preset code, which can send a switch-on signal to the controlling module when the unique authorized code matches the preset code. The controlling module sends a high-logic level to the switch module upon receiving the switch-on signal, to switch on the switch module to connect the power supply module with the motherboard. The receiving module sends a switch-off signal to the controlling module when the unique authorized code does not match the preset code, and the controlling module sends a low-logic level to the switch module, to switch off the switch module to disconnect the power supply module from the motherboard.

Abstract: A fan testing system includes a computer, a testing module, and a fan. The fan includes a fan body and a controller. The testing module includes a storing unit and an executing unit. The storing unit stores a reference range value, a standard speed control value, and a standard speed value. The executing unit sends the standard speed control value to the controller. The controller drives the fan body to rotate, get a current speed value, and sends the current speed value to the executing unit. The executing unit outputs pass information to the computer after determining a difference value between the current speed value and determining if the standard speed control value is within the reference range value. The executing unit outputs failed information to the computer upon the determining that the difference value exceeds the reference range value. A fan testing method is also provided.

Abstract: A detecting system includes a motherboard, and an embedded controller. The motherboard includes a complementary metal-oxide-semiconductor transistor (CMOS) chip and a basic input/output system (BIOS). The embedded controller is configured to store a maximum preset speed and a minimum preset speed of each of a plurality of fans. The embedded controller is configured to detect an actual speed of each fan and further configured to determine if the detected actual speed is greater than the maximum preset speed or less than the minimum preset speed. The embedded controller is configured to call the BIOS to store the detected actual speed into the CMOS chip when the detected actual speed is greater than the maximum preset speed or less than the minimum preset speed. The BIOS is configured to read the detected actual speed stored in the CMOS chip to display and report the errors.

Abstract: In a method of booting a computing device, the computing device includes a system disk and an embedded controller. The computing device removes a master boot record (MBR) and a disk partition table (DPT) from a master boot sector to a hidden sector of the system disk. The computing device installs a predetermined verification program in the master boot sector, and executes the verification program. Once the verification program receives a predetermined identification code from the embedded controller, the computing device is booted by the verification program according to the MBR and DPT in the hidden sector.

Abstract: In a method of unlocking an electronic device using an iris key, the iris key transmits an iris signal of a current user to the electronic device. The electronic device reads one or more pre-stored iris signal templates, and compares the received iris signal with the one or more iris signal templates. When the received iris signal matches with one of the one or more iris signal templates, the electronic device can be unlocked.

Abstract: In a method of upgrading an operating system of an electronic device, the electronic device sends an informing message to inform a basic input-output system (BIOS) of the electronic device, when the operating system is determined to be upgraded by the electronic device. Once the electronic device is wakened from a sleep mode by the BIOS, the electronic device upgrades the operating system, and controls the electronic device to enter the sleep mode when the operating system is upgraded.

Abstract: A basic input output system (BIOS) update apparatus is configured to update the BIOS of a first electronic device. The BIOS update apparatus includes a transfer board and a second electronic device. The transfer board includes a firmware for converting between USB signals and system management bus (SMBUS) signals. The second electronic device includes an update software. The BIOS update apparatus automatically updates the BIOS of the first electronic device when the update software is activated.

Abstract: In a method for waking up an operating system of an electronic device, a sensor of the electronic device is started and controlled to detect a distance between a specific object and the electronic device when a specific object enters into a detection area of the sensor. The detected distance is read from the sensor. The method determines whether the detected distance is more than a predefined distance and determines whether a current status of the electronic device is maintained for a first predefined time if the detected distance is not more than the predefined distance. An operating system of the electronic device is controlled to wake up when the predefined status of the electronic device is maintained for a first predefined time.

Abstract: A method for adjusting an observation distances between an user and a display device is provided. When the display device determines that the user is squinting and determines a distance value between the user and the display device is larger than a predetermined value, the display device controls a driving unit to drive a display unit of the display device to move toward to the user. A display device is also provided.

Abstract: In a method for adjusting a display screen of an electronic device, the method receives analog audio signals of a user, transforms the analog audio signals to digital audio signals, detects a first control command including first rotation directions and first rotation angles of the display screen from the digital audio signals, and rotates the display screen according to the first rotation directions and the first rotation angles. The method further obtains second rotation angles of the display screen detected by a gravity sensor of the electronic device, and stops rotating the display screen when the second rotation angles are equal to the first rotation angles.

Abstract: A method for controlling a screen orientation for an electronic device is provided. The method comprises generating a sensing signal when an edge of the electronic device is held by a user, determining a screen display mode according to the sensed signal, determining a direction of a gravity vector from a center of gravity of the electronic device, determining a right-side-up display orientation according to the determined direction of the gravity vector, and displaying a screen in the right-side-up orientation under the determined screen display mode. An electronic device using the method for controlling the screen orientation is also provided.