Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for achieving mask card patch mechanism

A mask card and patch technology, which is applied in the field of mask cards, can solve problems such as inability to achieve functions, limited number of patches, and inability to change, etc., to achieve strong applicability

Inactive Publication Date: 2014-03-26
北京大唐智能卡技术有限公司
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As part of the COS, the patch table is masked in the ROM area of ​​the card. When the COS of the card is determined, the patch table is also determined. Once the mask is completed, the patch function cannot be changed.
The mask card with such a patch mechanism has slow operation speed and low efficiency, and the number of patches is limited, and the adaptability of the patch function is poor. The non-scalability of the patch mechanism makes it unable to achieve its due role

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
  • Method and device for achieving mask card patch mechanism
  • Method and device for achieving mask card patch mechanism
  • Method and device for achieving mask card patch mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. It should be understood that the following examples are only used to illustrate and explain the present invention, but not to limit the technical solution of the present invention.

[0028] Such as figure 1 As shown, the flow of the patch deployment embodiment of the mask card patch mechanism implementation method of the present invention is shown, including the following steps:

[0029] 110: Configure a patch entry for the COS of the mask card in the modifiable storage area of ​​the mask card;

[0030] For example, configure the patch entry at the fixed address of the flash or eeprom of the mask card.

[0031] 120: If a software error is found during the use of the mask card, write the corresponding patch into the patch entry.

[0032] When the mask card is normal, no error is found and no patch function is neede...

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 discloses a method and device for achieving a mask card patch mechanism. The method includes the process of patch deployment, and the process of patch deployment includes the following steps that a patch entrance is configured for a chip operating system of a mask card in a revisable storage area of the mask card; in the use process of the mask card, if software errors are found out, a corresponding patch is written into the patch entrance. The method further includes the process of patch judgment and execution, and the process of patch judgment and execution includes the following steps that when the mask card is powered on, the patch entrance is subjected to access according to a fixed address, and if normal state information is returned, the normal functions of the mask card are executed. Compared with an existing mask card patch mechanism, the patch scheme is simple, convenient to use and efficient due to the fact that the patch entrance mode is adopted; due to the fact that the patch entrance is positioned in the revisable area of the mask card, the patch function can be freely expanded, and then adaptability is high.

Description

technical field [0001] The invention relates to mask card technology, in particular to a method and device for realizing a mask card patch mechanism. Background technique [0002] The mask card stores the mask of the chip operating system (COS, Card Operating System) in the ROM area through industrial-grade mask technology. Once the mask is completed, the COS cannot be modified. In order to operate the mask card safely, stably and reliably, there needs to be a patch mechanism to make up for errors not found before correcting the mask. [0003] At present, the general mask card patch mechanism is completed by polling and searching the patch table. When the mask card starts to work, search the patch function of the patch table, if the patch function is found, the patch operation is completed; otherwise, the card function is normally performed. As a part of COS, the patch table is masked in the ROM area of ​​the card. When the COS of the card is determined, the patch table is...

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 Applications(China)
IPC IPC(8): G06F9/445
Inventor 金银军程己农杨冲徐泳
Owner 北京大唐智能卡技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com