Mobile phone with data passage having open SIM function
A data channel, mobile phone technology, applied in telephone communication, wireless communication, electrical components, etc.
Inactive Publication Date: 2009-11-25
上海锦诺信息科技有限公司
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Problems solved by technology
[0007] However, the current external data channel of the mobile phone only supports data transmission in a specific format, and the newly added open platform card requires data to be transmitted along the channel according to requirements
Method used
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] figure 1 Shows the connection between the mobile phone and the external device. See figure 1 The mobile phone application software card 3 is inserted between the mobile phone chip 2 and the SIM card chip 4, and the external device 1 communicates with the mobile phone application software card 3 through the mobile phone chip 2.
[0026] Mobile phone external channel and mobile phone application software plug-in card 3 adopt same communication protocol (being the communication protocol of original SIM card), do not change the standard that mobile phone adopts originally, such as the ETSI 11.XX SIM card standard that adopts in the GSM mobile phone. The processor of the mobile phone participates in this process but is in a "transparent" state, and does not change the content of the communication data passed.
[0027] image 3 It shows the princip...
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The invention discloses a mobile phone with a data passage having opening SIM function so that the mobile phone with an application software plug-in card can realize data exchange with external equipment by the data passage and realize a mobile phone application software plug-in card program based on the mobile phone. The technical scheme is achieved as follows: the mobile phone comprises an external transmission interface, a mobile phone application software plug-in card interface, a mobile phone main module, an external transmission interface driving unit, a 7816 interface driving unit and a mobile phone extended application software unit, wherein the external transmission interface comprises standard external interfaces of the mobile phone; the mobile phone application software plug-in card interface is provided with a communication interface in accordance with the ISO 7816 standard and is used for providing the access of the mobile phone application software plug-in card to the mobile phone; the external transmission interface driving unit is connected with the external transmission interface; the 7816 interface driving unit is connected with the mobile phone application software plug-in card interface; and the mobile phone extended application software unit is internally arranged in the mobile phone application software plug-in card, and is used for establishing the data passage between the mobile phone application software plug-in card and the external transmission interface and enabling the application program on the mobile phone application software plug-in card to use the mobile phone. The invention is applied to the field of mobile phones.
Description
technical field [0001] The invention relates to a mobile phone with a built-in data channel with an open SIM function, in particular to a mobile phone with a built-in data channel with an open SIM function that is formed by expanding on all mobile phones without changing the main part of the mobile phone . Background technique [0002] The GSM digital mobile communication system was designed by a standardization committee composed of major European telecommunication operators and manufacturers. It is developed on the basis of the cellular system. Currently in China, the number of mobile communication users has exceeded 500 million. Mobile communication technology has brought a huge impetus to the development of society. The success of GSM can also be called the success of SIM cards. Also in CDMA mobile communication and various 3G networks, each mobile phone user needs a SIM card, so the mobile phone cannot get any service without the SIM card. [0003] The development of ...
Claims
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IPC IPC(8): H04W88/02H04M1/725H04M1/72403H04M1/72409
Inventor 高全建严迪化顾国昌张益军孙钟健
Owner 上海锦诺信息科技有限公司