FIELD: radio engineering, communication.
SUBSTANCE: cover of a smart device that has a screen, according to the first option, contains a front cover node, an additional display based on electronic paper-EPD display, located on the front cover node, a fastening mechanism for mounting the front cover to the smart device, a bidirectional interface to receive data from the smart device and data transmission to the smart device. An additional EPD display includes at least one touch sensor. The interface is made in such a way that it allows you to display full information from the smart device on a secondary EPD display when the smart device screen is off. According to the second option, the cover further comprises of a back-cover node that is provided with an interface with the smart device battery or contains an additional battery. The front cover node contains a processor and a memory module that provides the operation of an additional EPD display.
EFFECT: it is possible to save the activity of an additional EPD display when the smart device screen is turned off.
3 cl, 10 dwg
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