Huawei Technologies Co., Limited

Honor Device Co., Ltd.

Beijing Honor Device Co., Ltd.

Jianfei Chu

Jinhua Liu

Xiao Yang

Zhenyi Liu

Hui Xie

Yunhai Li

Jianyong Xuan

Xiaoyang Wang

Shilei Wang

Chienfeng Yeh

Junqing Shuai

Haojing Zhang

Shengwei Zhang

Yuanyou Wu

Chuanguo Wang

Embodiments of the present invention provide a sound recording method and apparatus. The method includes: displaying, by a terminal device, a first interface, where the first interface includes a first control, and the first control includes: a first option used for selecting a recording whose output specification is sound quality with a first bit width, and a second option used for selecting a recording whose output specification is sound quality of a second bit width; and processing, by the terminal device in a case that the terminal device receives an operation of selecting the first option, a recording obtained by a microphone, to obtain a recording with the first bit width; or processing, by the terminal device in a case that the terminal device receives an operation of selecting the second option, a recording obtained by a microphone, to obtain a recording with the second bit width.

Sound recording method and apparatus

A backlight circuit includes a backlight power supply chip and an adjustable resistor circuit. The backlight power supply chip includes a set pin configured to set a reference current, an input pin, and an output pin. One end of the adjustable resistor circuit is connected to the set pin. The adjustable resistor circuit further includes a control end, where the control end is configured to receive a switching signal. Based on the switching signal, the adjustable resistor circuit selects a resistor branch from a first resistor branch and a second resistor branch to connect to the set pin for generating the reference current. The backlight power supply chip is configured to generate a drive current based on the reference current and a duty cycle of a pulse-width modulation (PWM) signal received by the input pin, and output the drive current by using the output pin.

Backlight circuit, electronic device, and backlight adjustment method

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Beijing, China

Jianfei Chu