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US 11,893,436 B2Granted
Memory card identification method and mobile device
AssigneeHuawei Technologies Co., Ltd.
InventorsLingcong Xie, Dan Guo, Enhua Deng, Zhixiong Li
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Abstract
A memory card identification method and a mobile device are provided. The memory card identification method includes: sending an initialization command of a first-type memory card communications protocol to a to-be-identified memory card; detecting whether there is a response in a command pin of the memory card; and identifying the memory card as a first-type memory card or a second-type memory card based on a response status of the command pin.
Claims18
A method, comprising:
- powering on a DAT3 pin of a to-be-identified memory card to be in a non-grounded state;
- while the DAT3 pin is in the non-grounded state, sending an initialization command of a first-type memory card communications protocol to the to-be-identified memory card;
- detecting 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
- identifying 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.
2 more elements
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.
6 more elements
Dependencies are inferred from the claim text.