Patent ID: 11893436
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A mobile device, comprising
a controller; and
a card tray, configured to be embeddable into a body of the mobile device;
wherein the card tray comprises a card slot, the card slot is configured to accommodate a memory card, and to electrically connect the accommodated memory card and the controller, and wherein the controller is configured to:
power on a DAT3 pin of a to-be-identified memory card, causing the DAT3 pin to be in a non-grounded state;
while the DAT3 pin is in the non-grounded state, send an initialization command of a first-type memory card communications protocol to a to-be-identified memory card;
detect whether there is a response to the initialization command in a command pin of the to-be-identified memory card, to determine a response status of the command pin; and
identify whether the to-be-identified memory card is a first-type memory card or a second-type memory card based on the response status of the command pin.