Hon Hai Precision Industry Co., Ltd.

Hongfujin Precision Industry (wuhan) Co., Ltd.

Shenzhen Goldsun Network Intelligence Technology Co., Ltd.

Xin-Shu Wang

Min Yang

Jian-Hung Hung

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.

Electronic device and method for adjusting volume levels of audio signal outputted by the electronic device

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.

Temperature key and method for protecting security of computing device using the temperature key

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.

Display device and method for adjusting observation distances thereof

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.

Growing community of inventors

Wuhan, China

Xin-Shu Wang