Zte Corporation

Ziqiang Zuo

Wei Jiang

Nan Hu

Lingling Yao

Shuqi Wang

The present invention provides a device and method for diagnosing an audio circuitry, which is applied to a mobile terminal and its earphone. Both of the mobile terminal and its earphone include: a MIC circuit and a sounding circuit, wherein, this device includes: a MIC Circuit Diagnosis Module and a Sounding Circuit Diagnosis Module; A MIC Circuit Diagnosis Module is used for obtaining an amplitude and frequency of a sine wave signal sampled by the MIC circuit, determining whether the MIC circuit is qualified or not according to the amplitude and frequency and outputting the sine wave signal. A Sounding Circuit Diagnosis Module includes: a converter plate with a MIC circuit and a processor; the converter plate is used for sampling an analog signal output by the sounding circuit, converting the analog signal into a digital signal and sending it to a processor; and the processor is used for analyzing and processing the amplitude and frequency of the digital signal and determining whether the sounding circuit is qualified or not. According to the technical scheme provided by the present invention, the quality problem existing in the audio circuitry module of the mobile terminal can be solved, so as to reduce users' complaints and improve the customer satisfaction.

Device and method for diagnosing audio circuitry

An electronic device and a method for changing housing colors thereof are provided. This electronic device comprises: a power supply, a display screen, a housing (), a user operation interface (), a master controller (), and a control circuit (), wherein the housing () is configured to have multiple independent color-variable units, and each color-variable unit, which is connected to the power supply, is made of electrochromic materials with capacity of memory respectively; the user operation interface () is configured to receive an instruction inputted by a user for selecting a housing pattern; the master controller (), which is connected to the user operation interface, is configured to convert the selected housing pattern into a first control signaling, and then to output the first control signaling; and the control circuit (), which is connected to the master controller (), is configured to receive the first control signaling, and to convert the first control signaling into different voltage signals and to control each color-variable unit of the housing () to change the color. By adopting this electronic device and the method for changing housing colors thereof, the housing patterns of electronic devices can be changed by following users' demands, which improves users' experience.

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Ziqiang Zuo