Method of accessing contact features in smartcards
AssigneeAcer Incorporated
InventorChia-Yun Chuang
Life of this patent
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Abstract
During a booting procedure when reading the contact features of a smartcard, the body part of a master elementary file is accessed. According to the validity and link of each data, the body part of a Type 1 elementary file, a Type 2 elementary file or a Type 3 elementary file is selectively accessed. The efficiency of the booting procedure can be improved by avoiding unnecessarily accessing the body part of unused data in other types of elementary files.
Claims10
A method of accessing contact features in a smartcard, comprising:
- inserting the smartcard in a user equipment;
- accessing a body part of a master elementary file stored in the smartcard during a booting procedure of the user equipment;
- accessing a header of a Type 1 elementary file stored in the smartcard;
- accessing a first record in a body part of the Type 1 elementary file only when a relevant specific record in the body part of the master elementary file corresponds to valid data;
- and
- accessing a second record in a body part of a Type 2 elementary file stored in the smartcard when the relevant first record in the body part of the Type 1 elementary file corresponds to a valid pointer.
A method of accessing contact features in a smartcard, comprising:
- inserting the smartcard in a user equipment;
- accessing a body part of a master elementary file stored in the smartcard during a booting procedure of the user equipment;
- accessing a header of a Type 1 elementary file stored in the smartcard;
- accessing a first record in a body part of the Type 1 elementary file only when a relevant specific record in the body part of the master elementary file corresponds to valid data;
- and
- accessing a second record in a body part of a Type 3 elementary file stored in the smartcard when the specific record in the body part of the master elementary file corresponds to valid data and includes a specific byte indicative of a valid link.
A method of accessing contact features in a smartcard, comprising:
- inserting the smartcard in a user equipment;
- accessing a body part of a master elementary file stored in the smartcard during a booting procedure of the user equipment;
- accessing a header of a Type 1 elementary file stored in the smartcard;
- accessing a first record in a body part of the Type 1 elementary file only when a relevant specific record in the body part of the master elementary file corresponds to valid data;
- and
- accessing a second record in a body part of a Type 3 elementary file stored in the smartcard when the specific record in the body part of the master elementary file includes a specific byte indicative of a valid link.
Dependencies are inferred from the claim text.