Unlock instant, AI-driven research and patent intelligence for your innovation.

Smart card data write-in method

A data writing and smart card technology, which is applied to recording carriers used in machines, instruments, computer parts, etc., can solve the problems of incomplete writing of new data, data loss, and data destruction (may have been completely or partially erased) and other issues to achieve the effect of prolonging the service life, avoiding loss and ensuring safety

Active Publication Date: 2009-12-30
EASTCOMPEACE TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of writing new data, if there is an abnormal situation, such as a sudden power failure, then the new data will not be completely written, and the original data that needs to be replaced will also be destroyed (may have been completely or partially erased). except), which will make the smart card not work normally, or even continue to use
In this way, not only the work safety and service life of the smart card are affected, but at the same time, for the user, the loss of data may cause more serious losses

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Smart card data write-in method
  • Smart card data write-in method
  • Smart card data write-in method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Before introducing the embodiments of the present invention, it is necessary to introduce the concept of "atomicity of transactions". "Atomicity of a transaction" means that a transaction is a complete operation. The elements of a transaction are indivisible. All elements of a transaction must be committed or rolled back as a whole. If any element of a transaction fails, the entire transaction will fail. The concept of "atomicity" is a well-known term in this field and is within the scope of the prior art, so it will not be repeated here. Specific to the atomicity of the write operation of the smart card, it can be understood as: the write operation of the smart card is regarded as a transaction, and its atomicity means that the entire write operation process must be completed. If it is not completed, the entire write operation will be invalid. The present invention is realized through a special hardware structure and a corresponding method on the basis of introducing t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to smart cards and a data writing method thereof. The smart card is internally equipped with a mark position storage area of transaction protection and a transaction protecting area. A backup of the original data is stored in the transaction protecting area. The data writing method of the smart cards of the invention is to restore the original data through the backup of the original data when an exception occurs or the power is out in the process of writing new data, thereby avoiding loss of data, guaranteeing high safety in the process of writing data and simultaneously prolonging the service life of the smart card.

Description

technical field [0001] The invention relates to a data processing method which is especially suitable for a specific function, in particular to a data writing method for a smart card. Background technique [0002] Smart cards have been widely used in various products such as mobile phones, music players, and digital TVs. Smart cards can realize various functions such as identification, data storage, and information processing. Taking the SIM card (Subscriber Identity Model) widely used in mobile phones as an example, the SIM card is a smart card with functions of subscriber identification and data storage and processing, and is widely used in the field of mobile communications. [0003] Generally speaking, during the use of the smart card, the data in the storage area needs to be updated, that is, new data is written to replace the original data. In the process of writing new data, if there is an abnormal situation, such as a sudden power failure, then the new data will not...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/073
Inventor 杨林楷施伟周
Owner EASTCOMPEACE TECH