CN201425750Y

CN201425750Y - Micro SD card

Info

Publication number: CN201425750Y
Application number: CN2009201329576U
Authority: CN
Inventors: 李志雄; 杨天柱
Original assignee: Shenzhen Netcom Electronics Co Ltd
Current assignee: Shenzhen Netcom Electronics Co Ltd
Priority date: 2009-06-17
Filing date: 2009-06-17
Publication date: 2010-03-17
Anticipated expiration: 2019-06-17

Abstract

The utility model is suitable for the technical field of smart cards, and provides an Micro SD card. The Micro SD card comprises a control module, an external interface, a memory module, a smart cardand a 2.4 GHz RF communication module, wherein the external interface and the memory module are connected with the control module respectively; the smart card is electrically connected with the control module and used for providing application service; and the 2.4 GHz RF communication module is electrically connected with the control module and used for the Micro SD card to exchange data with an external non-contact-type card read terminal. In the utility model, through embedding the smart card and 2.4 GHz RF communication module in the Micro SD card and combining storage technology, smart card technology and wireless communication technology, the Micro SD card not only performs traditional memory function, but also performs the functions of smart card and can support various applicationsof contact-type and non-contact type smart cards.

Description

A kind of Micro SD card

Technical field

The utility model belongs to technical field of intelligent card, relates in particular to a kind of Micro SD card.

Background technology

Micro SD card is at digital camera, develops a kind of on used Flash Memory Card (flash memory cards) basis such as PDA and is more suitable for the storage card that small handsets is used more for a short time.Although the profile size of Micro SD card and interface shape are different with original SD card, electrical standards such as interface are identical, to guarantee compatibility.Micro SD is inserted private adapter, can be by original SD card slot read-write Micro SD card, Micro SD adopts the SD architecture design to form.

Figure 1 shows that the structure of existing Micro SD card, existing Micro SD card mainly comprises external interface 13, control module 12 and memory module 11, Micro SD card provides storage space by memory module 11, control module 12 is responsible for the visits of control external units to memory module 11, and external interface 13 provides being connected of external unit and Micro SD card.

Existing Micro SD card only has traditional memory function, simultaneously the various application services of compatible contact intelligent card and contact type intelligent card.

Summary of the invention

The purpose of this utility model is to provide a kind of Micro SD card, is intended to solve the existing Micro SD card problem of the various application services of compatible contact intelligent card and contact type intelligent card simultaneously.

The utility model is to realize like this, a kind of Micro SD card comprises: control module, external interface that is connected with described control module and memory module and be electrically connected with described control module respectively, be used to provide the smart card of application service, described Micro SD card also comprises:

Be electrically connected with described control module, be used for the 2.4GHz RF communication module that described smart card or described memory module and outside contactless card-reading terminal are carried out exchanges data.

Further, described smart card is a double-interface smart card.

Further, described memory module is NAND Flash.

Further, described 2.4GHz RF communication module comprises:

Be electrically connected with described control module, be used under the control of described control module, non-radiofrequency signal is modulated into the 2.4GHz radiofrequency signal or the 2.4GHz radiofrequency signal is demodulated to the 2.4GHzRF chip of non-radiofrequency signal;

The 2.4GHz RF antenna that is electrically connected with described 2.4GHz RF chip.

In the utility model, by in Micro SD card, embedding smart card and 2.4GHz RF communication module, in conjunction with memory technology, smart card techniques and wireless communication technology, not only make this Micro SD jig that traditional memory function is arranged, but also have the function of smart card, can support the various application of contact and contact type intelligent card.

Description of drawings

Fig. 1 is the structural representation of the Micro SD card that provides of prior art;

Fig. 2 is the structural representation of the Micro SD card that provides of the utility model embodiment;

Fig. 3 is the schematic appearance of the Micro SD card that provides of the utility model embodiment.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

In the utility model embodiment, by in Micro SD card, embedding smart card and 2.4GHz RF communication module, in conjunction with memory technology, smart card techniques and wireless communication technology, not only make this Micro SD jig that traditional memory function is arranged, but also have the function of smart card, can support the various application of contact and contact type intelligent card.

2.4GHz be an ISM band that the whole world is open, exempt from licence and use, can be in the unimpeded use in global radio market, high workload speed 1Mbps, efficient GFSK modulation, antijamming capability is strong, is particularly suitable for the Industry Control occasion, and because the 2.4GHz antenna volume is little, can be integrated in the card, therefore the application of following 2.4GHz will be more and more widely, develops a kind of conventional store function that both had thus, can support the Micro SD jig of 2.4GHz wireless application to be of practical significance again.

The structure of the Micro SD card that Fig. 2 provides for the utility model embodiment for convenience of explanation, only shows the part that the utility model embodiment is correlated with.This Micro SD card comprises: external interface 21, control module 22, memory module 23, smart card 24 and 2.4GHz RF communication module 25.

Memory module 23 and control module 22 are electrically connected, and are used to store data, and in the present embodiment, memory module 23 is NAND FLASH, can change the data of depositing according to user's actual needs.

Smart card 24 and control module 22 are electrically connected, and are used to provide various application services, and in the present embodiment, smart card 24 is a double-interface smart card, can support the various application of contact intelligent card and contact type intelligent card simultaneously.

External interface 21 and control module 22 are electrically connected, and are used to set up being connected of external unit and Micro SD card.

2.4GHz RF communication module 25 and control module 22 are electrically connected, and are used for receiving and handling the 2.4GHz radiofrequency signal.

Control module 22 is used to control each module that is electrically connected with it, carries out the processing of various command.

2.4GHz RF communication module 25 comprises: 2.4GHz RF chip 251 and 2.4GHz RF antenna 252,2.4GHz RF chip 251 is electrically connected with control module 22, and 2.4GHz RF antenna 252 is electrically connected with 2.4GHz RF chip 251.2.4GHz RF communication module 25 is operated in the 2.4GHz frequency range, can establish a communications link with the noncontact card-reading apparatus of operate outside in the 2.4GHz frequency range, carries out radio communication with operate outside at the noncontact card-reading apparatus of 2.4GHz frequency range.

Principle of work of the present utility model is described in detail in detail below:

Micro SD cartoon is crossed after external interface 21 connects with the external read card apparatus, and the external read card apparatus can be with wired mode access control module 22, and by control module 22 visit smart card 24, memory module 23 and 2.4GHz RF communication modules 25.

Micro SD card can also connect with wireless mode and the outside noncontact card-reading apparatus that is operated in the 2.4GHz frequency range by 2.4GHz RF communication module 25, with outside noncontact card-reading apparatus swap data, such as, outside noncontact card-reading apparatus can pass through 2.4GHz RF communication module 25 access control modules 22, and then visit smart card 24, if necessary, 2.4GHz RF communication module 25 access control modules 22 and then can also visit memory module 23.

Fig. 3 shows the schematic appearance of the Micro SD card that the utility model embodiment provides, and for convenience of explanation, only shows the part that the utility model embodiment is correlated with.In the present embodiment.This embedded smart card of Micro SD card and 2.4GHz RF communication module have enlarged the scope of application of Micro SD card.

In the utility model embodiment, by in Micro SD card, embedding smart card and 2.4GHz RF communication module, in conjunction with memory technology, smart card techniques and wireless communication technology, not only make this Micro SD jig that traditional memory function is arranged, but also have the function of smart card, can support the various application of contact and contact type intelligent card.This Micro SD card generally is applied on the small-sized mobile device, such as mobile phone, by with being used of mobile phone, only need carry mobile phone just can enjoy various convenient service to user's trip, is very easy to the user.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of Micro SD card, comprise: control module, external interface that is connected with described control module and memory module and be electrically connected with described control module are used to provide the smart card of application service respectively, it is characterized in that described Micro SD card also comprises:

Be electrically connected with described control module, be used for the 2.4GHz RF communication module that described Micro SD card and outside contactless card-reading terminal are carried out exchanges data.

2, Micro SD card as claimed in claim 1 is characterized in that described smart card is a double-interface smart card.

3, Micro SD card as claimed in claim 1 is characterized in that described memory module is NANDFlash.

4, Micro SD card as claimed in claim 1 is characterized in that, described 2.4GHz RF communication module comprises:

Be electrically connected with described control module, be used for that non-radiofrequency signal is modulated into the 2.4GHz radiofrequency signal or the 2.4GHz radiofrequency signal be demodulated to the 2.4GHz RF chip of non-radiofrequency signal;