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I. Introduction to Proximity Sensors in Phones A. Definition of proximity sensors A proximity sensor is a device used in smartphones to detect the presence of nearby objects without physical contact. It typically operates by emitting an electromagnetic field or a beam of electromagnetic radiation (such as infrared) and measuring changes in the field or the return signal from nearby objects. In smartphones, these sensors are crucial for enabling various functions that enhance user experience. B. Basic function in smartphones The primary function of a proximity sensor in smartphones is to determine how close the user is to the device. This capability allows the sensor to perform several key actions: […]