Phone covers with NFC circuit powered display devices

摘要

A cover for a user equipment, such as a cell phone, includes a housing, a display device, and a near field communication (NFC) circuit. The housing is attachable to the user equipment, and while attached covers a back surface of the user equipment. The display device is at least partially disposed within the housing. The NFC circuit that is configured to generate power through inductive coupling to another NFC circuit within the user equipment, the NFC circuit configured to operate using the power to receive data from the other NFC circuit within the user equipment, and to supply the power and the data to the display device to cause the data to be displayed for viewing by a user. Related user equipment, methods, and computer program products are disclosed.

主权项

1. A cover for a user equipment, the cover comprising:
a housing that is attachable to the user equipment, and while attached covers a back surface of the user equipment; a display device at least partially disposed within the housing; and a near field communication (NFC) circuit that is configured to generate power through inductive coupling to another NFC circuit within the user equipment, the NFC circuit configured to operate using the power to receive data from the other NFC circuit within the user equipment, and to supply the power and the data to the display device to cause the data to be displayed for viewing by a user, wherein the NFC circuit comprises a charging circuit and a rechargeable power supply, the charging circuit charging the rechargeable power supply to at least an upper threshold level of stored power, in response to power received through the inductive coupling to the other NFC circuit within the user equipment, and then at least partially discharging the rechargeable power supply to provide power to the display device of the cover to temporarily power the display device to display the data, and wherein the charging circuit is configured to initiate the discharging of the rechargeable power supply to temporarily power the display device of the cover in response to the NFC circuit of the cover receiving the data from the NFC circuit of the user equipment and the rechargeable power supply reaching at least the upper threshold level of stored power.