US Patent 10572075 Smart electronic audio book with page number detection

A smart electronic audio book with page number detection is disclosed, including at least a capacitive sensor, a touch control chip, a microprocessor, a player and a power supply unit, wherein a page number sensing strips is connected to the power supply unit to increase the amount of carried charge to facilitate the capacitive sensor to detect whether the page number sensing strip is within the detection range. A smart electronic audio book using a page number detection unit is also disclosed. The page number detection unit has a magnetic field detection element, and book pages are disposed with magnets. When the book page is turned, the magnetic flux change is detected by the magnetic field detection element to notify the microprocessor and the smart electronic audio book is able to detect page number with enhanced sensitivity and reliability.