SYSTEM AND METHOD FOR DETECTION OF PIEZO AUDIO TRANSDUCER FAILURE
卷宗概要
发明人
Adam S. Trock; Elizaveta V. Koush; Daniel L. Diaz; Vijaya Kumar Parari; Carlos A. Ayala; Shahriar Sarkeshik
IPC 分类
CPC 分类
Disclosed herein are techniques related to detecting failures in piezo audio transducers. In some embodiments, the techniques may involve disabling non-essential components and peripherals and forcing microcontroller units into full active mode. The piezo audio transducer is driven at each of a plurality of driving frequencies and, for each driving frequency, the amount of power consumed by the piezo audio transducer is determined. Slope values are determined for each pair or driving frequencies. Based on these slopes, the disclosed techniques generate a piezo health metric for the piezo audio transducer indicating whether the piezo audio transducer passed or failed the test. If the piezo audio transducer fails the test, an appropriate warning or alert can be sent to one or more users and/or other devices.
原文（中文）
Disclosed herein are techniques related to detecting failures in piezo audio transducers. In some embodiments, the techniques may involve disabling non-essential components and peripherals and forcing microcontroller units into full active mode. The piezo audio transducer is driven at each of a plurality of driving frequencies and, for each driving frequency, the amount of power consumed by the piezo audio transducer is determined. Slope values are determined for each pair or driving frequencies. Based on these slopes, the disclosed techniques generate a piezo health metric for the piezo audio transducer indicating whether the piezo audio transducer passed or failed the test. If the piezo audio transducer fails the test, an appropriate warning or alert can be sent to one or more users and/or other devices.