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Handheld electronic apparatus, sound producing system and control method of sound producing thereof

A control method and sound technology, applied in the direction of amplification control, gain control, electrical components, etc., can solve the problems of high difficulty in implementation, complicated compensation actions, etc., achieve the simplification of hardware structure and action mode, and improve the compensation effect Effect

Active Publication Date: 2017-11-03
HTC CORP
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  • Application Information

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Problems solved by technology

[0003] In addition, the known technology also proposes to compensate the input sound signal first, and then amplify the compensated sound signal. However, the compensation action for the original input sound signal is more complicated, and the precise compensation action needs to be completed. , it will be more difficult to implement

Method used

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  • Handheld electronic apparatus, sound producing system and control method of sound producing thereof
  • Handheld electronic apparatus, sound producing system and control method of sound producing thereof
  • Handheld electronic apparatus, sound producing system and control method of sound producing thereof

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Embodiment Construction

[0076] see Figure 1A , Figure 1A A sound generating system according to an exemplary embodiment of the present application is explained. The sound production system 101 includes an audio controller 102, a drive circuit 103 and a speaker SPK. The loudspeaker SPK is used to generate audible sound. The driving circuit 103 is coupled to the speaker SPK and provides a signal for driving the speaker SPK. The audio controller 102 is coupled to the speaker SPK and the driving circuit 103 . The audio controller 102 is configured to receive and process an input audio signal IN_AU, and generate and convert an output audio signal into a driving voltage. The driving circuit 103 supplies a driving voltage to the speaker SPK to drive the speaker SPK.

[0077] In detail, the audio controller 102 receives the amplification gain and pre-amplifies the input audio signal IN_AU with the amplification gain to obtain a pre-amplified audio signal. Then, the audio controller 102 performs a multi-b...

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PUM

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Abstract

A handheld electronic apparatus, a sound produce system and a control method of sound producing thereof are provided. The sound produce system includes a speaker, a feedback unit, a gain unit and a compensation unit. The speaker generates audible sound according to an output audio signal. The feedback unit generates a first detected parameter, wherein the first detected parameter represents a detected excursion. The gain unit receives an input audio signal, and amplifies the input audio signal to generate a gained audio signal according to a gain value. The compensation unit receives the gained audio signal and the first detected parameter, and predicts an excursion of the speaker corresponding to the gained audio signal to generate a predicted excursion parameter, and compensates the gained audio signal to generate the output audio signal according to the first detected parameter and the predicted excursion parameter.

Description

technical field [0001] The invention relates to a hand-held electronic device, its sound generation system and a control method for sound generation, and in particular to a hand-held electronic device capable of compensating for harmonic distortion of a loudspeaker, its sound generation system and a control method for sound generation. Background technique [0002] In recent years, in order to provide higher-quality multimedia functions, electronic devices often need to be equipped with high-quality sound generation systems. In the known technical field, the loudspeaker in the sound generating system is often limited by its maximum excursion, temperature rise, nonlinear characteristics of the transducer, and nonlinearity caused by the amplifier corresponding to the loudspeaker. Therefore, the manufacturer decides how to drive the loudspeaker and drive the loudspeaker at the rated power for a longer period, and drive the loudspeaker at the highest power for a shorter period. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/30H04R3/00
CPCH03G3/3005H04R3/00H04R3/007H04R3/04H04R2499/11
Inventor 郑志强李淳民唐汉熙陈雷萧哲宜黄金国
Owner HTC CORP
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