A kind of multi-function SIM card, its operation method and terminal

A multi-functional and terminal technology, applied in the direction of telephone structure, branch equipment, electrical components, etc., can solve the problem that the storage capacity cannot be well supported, and achieve the effect of fast switching service and convenient migration.

Active Publication Date: 2022-02-11
ZHENGZHOU XINDA JIEAN INFORMATION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of storage capacity cannot well support the business development of telecom operators and the application requirements of end customers. At present, a transitional approach is to use expansion cards other than SIM cards (such as Micro-SD cards, also known as TF cards). To increase the storage capacity, the problems brought by this method have been fully elaborated in existing documents such as CN100474868C, CN100487728C, CN101566980A, and will not be repeated here. Therefore, it is necessary to develop a new SIM card so that it can It supports basic telecom operation services, and can meet the storage capacity required by customer application requirements, and at the same time can adapt to the current rapid development needs of the Internet of Things, mobile finance, mobile payment, and industry mobile office security

Method used

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  • A kind of multi-function SIM card, its operation method and terminal
  • A kind of multi-function SIM card, its operation method and terminal

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Embodiment Construction

[0023] In order to make the objects, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended to be used to illustrate the invention and are not intended to limit the invention. Rather, the present invention encompasses any alternative, modifications, equivalents, and programs that are defined by the appended claims. Further, in order to make the public a better understanding of the present invention, some specific detail portions are described in detail in the detailed description of the present invention. The description of these detail portions can also be fully understood by those skilled in the art.

[0024] Pin ISO7816 protocol Second Agreement (SD protocol) C1 CLK: clock signal CLK: clock signal C2 RST: Reset CMD: Two-way Command / Response Sign...

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Abstract

The present invention relates to a multifunctional SIM card, a card operating method and a terminal. The multifunctional secure SIM card multiplexes the second protocol pins on the 6-pin interface defined by the ISO7816 protocol and adds two extended second protocols. The function of the SIM card or the second protocol card is realized by means of pins; after external power is applied, when the detected clock frequency is below 5MHZ, start the low-speed protocol interface and enter the SIM card working mode; otherwise, start the high-speed protocol interface and enter SD card working mode; the terminal is provided with a SIM card reading module, a 7816 protocol interface and a second protocol interface module, and the SIM card reading module includes at least 8 contact patches, and the 8 contact patch reading The signals transmitted by the 8 contacts of the multifunctional security SIM card are obtained. The present invention can be applied in various fields such as the Internet of Things, mobile finance, and mobile office.

Description

Technical field [0001] The present invention relates to the field of computers and mobile communication, and more particularly to a multi-function safety SIM card, a card operating method and a terminal. Background technique [0002] Traditional mobile phone SIM card follows the Smart Card Industry Standard ISO7816 protocol, which is generally divided into several versions of 8KB, 16KB, 32KB, 64KB, 128KB, 32KB, 64KB, 128KB, and 512KB. The high-specific SIM card of NFC business, and the capacity can only reach a gaming . This storage capacity is unable to support the business development of telecom operators and the application needs of the final customer. The current practice is the use of SIM card extensions (such as Micro-SD card, also known as TF card). To increase storage capacity, the problem brought about by CN100474868C, CN1004877728C, CN1004877728C, CN101566980A, etc. have been fully explained, and will not be described herein, therefore it is necessary to develop a new S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/3816H04B1/3818H04M1/02
CPCH04B1/3816H04B1/3818H04M1/026H04M1/0274
Inventor 刘熙胖梁松涛卫志刚刘武忠黄保安彭金辉
Owner ZHENGZHOU XINDA JIEAN INFORMATION TECH
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