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Secure digital card capable of transmitting data via wireless network

A secure digital and antenna technology, applied in the field of secure digital cards, can solve the problems of increased cost, lack of versatility, and no connection to wireless networks, etc., to achieve the effect of improving versatility and saving costs

Active Publication Date: 2012-08-01
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, these devices often do not have the function of connecting to a wireless network. If these devices are to be able to transmit data through a wireless network, it is necessary to add a special wireless network module to these devices, which increases the cost on the one hand, and on the other hand generality

Method used

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  • Secure digital card capable of transmitting data via wireless network
  • Secure digital card capable of transmitting data via wireless network
  • Secure digital card capable of transmitting data via wireless network

Examples

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Embodiment Construction

[0014] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. First, words and terms in each of the following examples are explained:

[0015] The so-called host device refers to the main device of the secure digital interface, which can be various electronic devices, including but not limited to: notebook computer (Notebook Computer), mobile phone, personal digital assistant (Personal Digital Assistant, PDA), tablet computer ( Tablet PC), digital camera, digital video camera, MP3 / MP4 player.

[0016] When the following embodiments mention that A and B are "coupled", it means that the electrical signal passing through A and the electrical signal passing through B are physically determined, which includes direct connection between A and B through wires, etc., or through another A component C is indirectly connected, including the connection between A and B through electromagnetic induction like a transform...

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PUM

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Abstract

The invention provides an SD (secure digital) card, which comprises an SDIO (secure digital input output) interface, a selective switch, a storage unit, a base band processing unit, a radiofrequency circuit and an antenna. The SDIO interface is a data and control interface for connecting a host with the storage unit; the storage unit is used for storing data; the selective switch comprises a first branch and a second branch, when the first branch is switched on, a reading and writing interface of the storage unit is coupled with the SDIO interface, and when the second branch is switched on, the reading and writing interface of the storage unit is coupled with the base band processing unit; the base band processing unit is used for being coupled with the radiofrequency circuit and processing base band data; the radiofrequency circuit is coupled with the base band processing unit; and the antenna is used for transmitting radiofrequency signals outputted by the radiofrequency circuit and receiving radiofrequency signals from a network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a safe digital card capable of transmitting data through a wireless network. Background technique [0002] At present, wireless networks are becoming more and more developed. People's requirements for surfing the Internet anytime and anywhere require various electronic devices, such as notebook computers, tablet computers, digital cameras, etc., that can support 3G (3G rd Generation, third-generation mobile communication technology), LTE (Long Term Evolution, long-term evolution), WiFi (Wireless Fidelity, wireless fidelity) and other wireless network connections. However, in the prior art, these devices often do not have the function of connecting to a wireless network. If these devices are to be able to transmit data through a wireless network, it is necessary to add a special wireless network module to these devices, which increases the cost on the one hand, and on the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077
CPCG06F13/10G06K19/077G06F13/4022
Inventor 金磊高春禹
Owner HUAWEI DEVICE CO LTD