CN102479405A - Portable storage device and using method and system thereof - Google Patents

Abstract

The invention discloses a portable storage device and a using method and a system thereof. The portable storage device is a device with a non-contact element and a contact element, and is connected with the electronic device by using an interface unit. When the portable storage device is connected to the electronic device through the interface unit, the portable storage device is connected to a website through the electronic device, and the identity of the portable storage device is confirmed by using the identification code stored in the portable storage device, so that online transaction is executed in the website after the identity is confirmed to be correct. And updating the use data in the portable storage device according to the transaction result.

Description

Portable storage device and its usage method and system

technical field

The present invention relates to a portable storage device, in particular to a portable storage device combined with a non-contact chip and a contact connection element and its usage method and system.

Background technique

With the advancement of technology, the demand for radio frequency identification (Radio Frequency Identification, RFID) tags for other applications has gradually increased, such as using RFID tags on smart cards (chip cards or integrated circuit (integrated circuit, IC) cards) to provide convenience and Safety. For example, the use of RFID tags in smart cards used as credit or debit cards can prevent unauthorized access to personal information. For contactless smart cards, an RFID tag is embedded inside as a recognizable identification code. When the reader identifying the identification code sends an RFID signal to the RFID tag, the identification code stored in the tag will be transmitted to the reader through the modulator included in the tag. However, the general contactless smart card can only be used with a reader, which limits the application of the contactless smart card.

Contents of the invention

The invention provides a portable storage device, which combines a non-contact chip and a contact connection element, so as to improve the convenience in use.

The invention provides a method for using a portable storage device, which can improve the convenience of using the portable storage device.

The invention provides a portable storage device, which includes an interface unit, an antenna and an electronic label unit. Wherein, the interface unit is used for connecting with an external electronic device, so as to receive commands from the electronic device after being connected with the electronic device. The electronic label unit is connected to the interface unit. The electronic label unit has a storage space, and the storage space stores identification codes and usage data. The electronic tag unit accesses the storage space according to the signal received by the antenna, and also accesses the storage space according to the command of the electronic device. Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the identification code is read from the storage space through the electronic label unit, and the identification code is transmitted to the electronic device through the interface unit , so that the electronic device authenticates to the website according to the identification code, and after passing the authentication, executes an online transaction on the website through the electronic device, and after the online transaction is executed, the electronic tag unit is used to update the transaction result to the usage data.

In an embodiment of the present invention, the above-mentioned transaction result includes available balance (such as monetary amount or virtual points) and transaction detail data. In addition, the aforementioned antenna is, for example, a Radio Frequency (RF) antenna, the electronic tag unit is, for example, a radio frequency identification tag, and the interface unit is, for example, a Universal Serial Bus (Universal Serial Bus, USB), an infrared (infraredray) interface, and a bluetooth (bluetooth). ) interface one of them.

In addition, the present invention provides another portable storage device, which includes a connector and an identification chip. The connector includes a control unit and an interface unit. The above-mentioned interface unit is connected to the control unit, and is used for connecting with an external electronic device, so as to receive commands from the electronic device after being connected with the electronic device. The identification chip includes an antenna and an electronic tag unit. The above-mentioned electronic label unit is connected to the control unit, and the electronic label unit has a storage space, and the identification code and usage data are stored in the storage space. Here, the electronic tag unit accesses the storage space according to the signal received by the antenna, and also accesses the storage space according to the command of the electronic device. Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the control unit reads the identification code from the electronic label unit, and transmits the identification code to the electronic device through the interface unit, Make the electronic device authenticate to the website according to the identification code, and after passing the authentication, execute the online transaction in the website through the electronic device, and after the online transaction is executed, use the control unit to update the transaction result through the electronic label unit to use data.

In an embodiment of the present invention, the above-mentioned connector further includes a storage unit. The storage unit is connected to the control unit for storing an application program (applet). The aforementioned control unit executes this application program to update usage data.

In addition, the present invention proposes a system for using a portable storage device, including an electronic device, a portable storage device, and a remote storage device. Electronic devices are used to connect to websites to perform online transactions on the websites. The portable storage device includes an interface unit, an antenna and an electronic label unit. The interface unit is used for connecting with the electronic device to receive commands from the electronic device after being connected with the electronic device. The electronic label unit is connected to the interface unit, and has a storage space, and the storage space stores identification codes and usage data. The electronic tag unit is used for accessing the storage space according to the signal received by the antenna, and accessing the storage space according to the command of the electronic device. The remote storage device is used for connecting with the electronic device through the Internet, and stores an application program, so as to use the application program to update a usage data. Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the identification code is read from the storage space through the electronic label unit, and the identification code is transmitted to the electronic device through the interface unit making the electronic device authenticate to the website according to the identification code, so that after passing the authentication, the electronic device executes an online transaction in the website, and after the online transaction is executed, the transaction result is updated to the usage data through the application program.

The present invention also provides a method for using a portable storage device, which is suitable for an electronic device. When detecting that the portable storage device is connected to the electronic device, connect to a website. Wherein, the portable storage device includes an antenna, an electronic label unit and an interface unit, and the electronic label unit has an identification code, and the storage unit is connected to the electronic device through the interface unit. Then, the first command is sent to the portable storage device through the interface unit, and the identification code is read by the electronic tag unit. And, according to the identification code, go to the website for identity verification. After confirming that the identity of the portable storage device is correct, the online transaction is executed. Moreover, the second command is sent to the portable storage device through the interface unit, so as to update the transaction result of the online transaction to the portable storage device.

In one embodiment of the present invention, when the above-mentioned website is a recharge website, the steps of performing online transactions include: connecting to a bank account; performing deduction according to the recharge amount; sending a third command to the portable type storage device, and use the electronic tag unit to read the usage data to obtain the available balance; recalculate the available balance according to the recharge amount. Afterwards, in the step of updating the transaction result of the online transaction to the portable storage device, the recalculated available balance is updated into the usage data through the electronic label unit.

In an embodiment of the present invention, when the above-mentioned website is a shopping website, the step of executing the online transaction includes: sending a third command to the portable storage device through the interface unit, and using the electronic tag unit to read the usage data, Obtain the available balance; determine whether the available balance is greater than the shopping amount; when the available balance is greater than the shopping amount, recalculate the available balance based on the shopping amount. Afterwards, in the step of updating the transaction result of the online transaction to the portable storage device, the recalculated available balance is updated into the usage data through the electronic label unit.

In an embodiment of the present invention, the above-mentioned available balance is currency amount or virtual points.

Based on the above, the present invention combines the antenna (non-contact chip) and the interface unit (contact connection element) in the portable storage device. That is, an interface unit is provided in the portable storage device with a non-contact chip to connect with an external electronic device. In this way, online transactions can be performed by connecting the portable storage device to the electronic device, which improves the convenience of using the portable storage device.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

Description of drawings

FIG. 1A is a block diagram of a portable storage device according to a first embodiment of the present invention.

FIG. 1B is a schematic diagram of a portable storage device according to a first embodiment of the invention.

FIG. 2 is a block diagram of a system for using a portable storage device according to a first embodiment of the present invention.

FIG. 3 is a flowchart of a method for using a portable storage device according to a first embodiment of the present invention.

FIG. 4 is a block diagram of a portable storage device according to a second embodiment of the present invention.

5A and 5B are schematic diagrams of a portable storage device according to a second embodiment of the present invention.

6A and 6B are schematic views of the appearance of a portable storage device according to a third embodiment of the present invention.

7A and 7B are schematic diagrams of an online transaction process according to a fourth embodiment of the present invention.

Description of main component symbols:

100, 400, 600: Portable storage device

110, 410: Antenna

120, 420: electronic label unit

130, 440, 610: interface unit

140, 401: identify chip

403: Connector

430: Control unit

450: storage unit

210, 710: Electronic devices

220: Internet

230, 720: website

240: remote storage device

730: remote storage device

740: Logistics Center

Detailed ways

Generally speaking, the smart label card can only be used with its corresponding induction receiving device, so its application range cannot be expanded. For example, it cannot be used for online transactions such as online recharge or online payment, nor can it be used for the accumulation of virtual points On virtual stored value such as exchange. To this end, the present invention proposes a portable storage device and its usage method and usage system, which can combine a non-contact chip with a contact connection element, thereby improving the convenience of the portable storage device. In order to make the content of the present invention clearer, the following specific examples are given as examples in which the present invention can actually be implemented.

first embodiment

FIG. 1A is a block diagram of a portable storage device according to a first embodiment of the present invention. Please refer to FIG. 1A , the portable storage device 100 includes an antenna 110 , an electronic tag unit 120 and an interface unit 130 . Wherein, the interface unit 130 is used for connecting with an external electronic device (not shown), so as to receive commands from the electronic device after being connected with the electronic device. The antenna 110 is connected to the electronic tag unit 120 . The above-mentioned antenna 110 is used for inducting with an external inductive reading device. The electronic label unit 120 is connected to the interface unit 130 , and has a storage space in the electronic label unit 120 , and the identification code and usage data are stored in the storage space.

When the portable storage device 100 is connected to an external electronic device through the interface unit 130, and the electronic device is connected to the website, the identification code can be read from its storage space through the electronic label unit 120, and then the The identification code is sent to the electronic device. Accordingly, the electronic device can go to the website for authentication according to the identification code, so as to verify the identity of the portable storage device 100 . After passing the authentication, the online transaction is executed on the website through the electronic device. Moreover, after the online transaction is executed, the electronic tag unit 120 is used to update the transaction result to the usage data stored in its storage space.

FIG. 1B is a schematic diagram of a portable storage device according to a first embodiment of the invention. Please refer to FIG. 1B , in this embodiment, the portable storage device 100 is, for example, a card-type device, which includes an identification chip 140 . The identification chip 140 has an antenna 110 and an electronic tag unit 120 , and is connected to the interface unit 130 through the electronic tag unit 120 . Here, the identification chip 140 is, for example, a radio frequency identification (Radio Frequency Identification, RFID) chip, the antenna 110 is, for example, a radio frequency (RF) antenna, and the electronic tag unit 120 is, for example, a radio frequency identification tag (RFIDTag). The interface unit 130 is, for example, a Universal Serial Bus (USB). However, in other embodiments, the interface unit 130 may also be an infrared (infrared ray) interface or a bluetooth (bluetooth) interface, which is not limited thereto.

According to the prior art, the identification chip 140 is, for example, a smart chip card used for public transportation (including: Taiwan's Easy Card, Hong Kong's Octopus card, Japan's Suica card, etc.). For the EasyCard, an EasyCard number (outer code) is printed on the back of the card, and an inner code is set on the inside of the card for internal use by the MRT Corporation. Accordingly, the outer code or the inner code can be used as the identification code, or an identification code corresponding to the inner code or the outer code can also be set additionally.

Hereinafter, another embodiment is given to illustrate the usage system of the portable storage device 100 . FIG. 2 is a block diagram of a system for using a portable storage device according to a first embodiment of the present invention. Please refer to FIG. 2 , in this system, the portable storage device 100 uses the interface unit 130 to connect with the electronic device 210 . The electronic device 210 is connected to the website 230 through the Internet 220 . In addition, the electronic device 210 can be connected to a remote storage device 240 through the Internet 220 .

In this embodiment, the remote storage device 240 stores an application program (applet), and the transaction result of the online transaction executed by the electronic device 210 can be updated to the portable storage device 100 by using the application program.

However, in other embodiments, a storage unit may be additionally provided in the portable storage device 100, the above-mentioned application program is stored in the storage unit, and the application program of the storage unit is directly used for updating. The storage method of the application program is not limited here.

The steps of the method for using the portable storage device will be described below in combination with the above-mentioned portable storage device 100 . FIG. 3 is a flowchart of a method for using a portable storage device according to a first embodiment of the present invention. Please refer to FIG. 2 and FIG. 3 at the same time. In this embodiment, the portable storage device 100 is connected to the external electronic device 210 through the interface unit 130, so as to connect to the website 230 through the electronic device 210 for online transactions. . For example: use the available balance recorded by the portable storage device 100 (which can be currency amount or virtual points) to pay for shopping; or recharge the available balance recorded by the portable storage device 100; Accumulate bonus points for the available balance recorded in the portable storage device 100 through transaction results; or query the transaction records of the portable storage device 100; or issue electronic invoices for shopping behaviors...etc. .

First, in step S305 , when the electronic device 210 detects that the portable storage device 100 is connected to it through the interface unit 130 , it connects to a website 230 (such as a shopping website, a recharging website, etc.).

Next, in step S310 , the electronic device 210 transmits a first command to the portable storage device 100 through the interface unit 130 , and uses the electronic tag unit 120 to read the identification code. Afterwards, as shown in step S315 , the electronic device 210 can go to the website 230 for identity verification according to the identification code. Specifically, after the portable storage device 100 is connected to the website through the electronic device 210, the electronic device 210 can send a first command to the portable storage device 100, so that the electronic tag unit 120 reads the identification from its storage space. code. Afterwards, the electronic device 210 can send the identification code to the website 230 for authentication. That is to say, the website 230 identifies the identity of the portable storage device 100 according to the identification code.

Afterwards, in step S320 , after the identity is confirmed correctly, the electronic device 210 can execute online transactions in the website 230 . After the online transaction is executed, as shown in step S325, the electronic device 210 sends the second command to the portable storage device 100 through the interface unit 130, and updates the transaction result of the online transaction to the portable storage device 100. use data. Transaction results include available balances (for example, monetary amounts or virtual credits) or transaction detail data.

For example, assume that the website 230 is a recharge website. After the electronic device 210 connects to the website 230 and confirms the identity of the owner of the portable storage device 100 according to the identification code, the electronic device 210 connects to a bank account (for example, online banking) through the Internet 220, and then according to the recharge amount to carry out the deduction action. Moreover, the electronic device 210 can transmit the third command to the portable storage device 100 through the interface unit 130 , and use the electronic tag unit 120 to read usage data from its storage space to obtain the available balance. Afterwards, the available balance can be recalculated based on the top-up amount. After completing the online recharging operation, the electronic device 210 sends a second command to the portable storage device 100 through the interface unit 130 to update the recalculated available balance to the usage data of the portable storage device 100 .

Also, assume that the website 230 is a shopping website. After the electronic device 210 is connected to the website 230 and confirms the identity of the owner of the portable storage device 100 according to the identification code, the third command is sent to the portable storage device 100 through the interface unit 130, and the electronic label unit 120 is used to Read usage data to get available balance. Next, it is judged whether the available balance is greater than the shopping amount. When the available balance is greater than the shopping amount, the available balance can be recalculated based on the shopping amount. Afterwards, after completing the online shopping action, the electronic device 210 sends a second command to the portable storage device 100 through the interface unit 130, and updates the recalculated available balance to the usage data of the portable storage device 100 .

second embodiment

FIG. 4 is a block diagram of a portable storage device according to a second embodiment of the present invention. Referring to FIG. 4 , the portable storage device 400 includes an identification chip 401 and a connector 403 . The identification chip 401 includes an antenna 410 and an electronic tag unit 420 . The connector 403 includes a control unit 430 and an interface unit 440 .

The above-mentioned interface unit 440 is connected to the control unit 430 and used for connecting with an external electronic device (not shown), so as to receive commands from the electronic device after being connected with the electronic device.

The electronic label unit 420 is connected to the control unit 430, and the electronic label unit 420 has a storage space, and the identification code and usage data are stored in the storage space. Here, the electronic label unit 420 accesses the storage space according to the signal received by the antenna 410 , and also accesses the storage space according to the command of the electronic device.

In this embodiment, when the portable storage device 400 is connected to the electronic device through the interface unit 440 and connected to the website through the electronic device, the control unit 430 will read the identification code from the electronic label unit 420, and The interface unit 440 transmits the identification code to the electronic device, so that the electronic device authenticates to the website according to the identification code. After passing the authentication, the online transaction is executed on the website through the electronic device, and after the execution of the online transaction is completed, the control unit 430 updates the transaction result to the usage data through the electronic label unit 420 .

Like the usage method of the portable storage device 100 in the first embodiment above, in this embodiment, the portable storage device 400 can also be used through an electronic device. The difference between this embodiment and the first embodiment is that this An embodiment is to access the storage space of the electronic label unit 420 through the control unit 430 .

5A and 5B are schematic diagrams of a portable storage device according to a second embodiment of the present invention. Referring to FIG. 5A , the portable storage device 400 is, for example, a card-type device, which includes an identification chip 401 . Here, the identification chip 401 is, for example, an RFID chip, the antenna 410 is, for example, an RF antenna, and the electronic tag unit 420 is, for example, an RFID tag. The connector 403 is, for example, a Universal Serial Bus (USB), which includes an interface unit 440 and a control unit 430 .

In addition, it is worth mentioning that referring to FIG. 5B , the connector 403 may further include a storage unit 450 , and an application program may be set in the storage unit 450 as a balance updating module. When the online transaction is completed, the website will trigger the balance update module in the portable storage device 400, so that the control unit 430 updates the available balance in the usage data according to the transaction result through the balance update module.

In addition, in other embodiments, the capacity of the storage space of the electronic label unit 420 can also be expanded to store the balance update module. Alternatively, the balance update module can also be set in the cloud storage space, such as the remote storage device 240 shown in FIG. 2 .

third embodiment

6A and 6B are schematic views of the appearance of a portable storage device according to a third embodiment of the present invention. Please refer to FIG. 6A and FIG. 6B , the interface unit 610 is pivotally disposed on the portable storage device 600 . When the user intends to connect the portable storage device 600 with an electronic device, the interface unit 610 is pivoted out from the portable storage device 600 for use. The length of the interface unit 610 can be half of the portable storage device 600, as shown in FIG. 6A, or it can be close to the length of the portable storage device 600, as shown in FIG. 6B. However, this is only for illustration and is not limited thereto.

Fourth embodiment

7A and 7B are schematic diagrams of an online transaction process according to a fourth embodiment of the present invention. Here, take the portable storage device 100 of FIG. 1 as an example. In this embodiment, the balance update module is stored in the remote storage device 730 (that is, the cloud network space) as an example for illustration, however, in other embodiments, the balance update module can also be directly stored in the portable storage device 100.

Referring to FIG. 1 and FIG. 7A , the electronic device 710 is connected to a website 720 and a remote storage device 730 through the Internet. Here, the website 720 is, for example, a website of a financial institution such as a website of an online bank, a website of a rapid transit company, or a website established for a card issuing company of the portable storage device 100 . Users can perform online transactions through the website 720, such as online recharging, online shopping, and the like.

When the user connects the portable storage device 100 to the electronic device 710, the electronic device 710 will read the identification code in the portable storage device 100 and send the identification code to the website 720, so that the website 720 can The identification code of the device 100 is used for authentication. When the website 720 determines that the identity of the portable storage device 100 is correct, the website 720 will deduct money from the network account corresponding to the identification code, and recalculate the available balance. Afterwards, the website 720 will trigger the balance update module stored in the remote storage device 730 to update the available balance of the portable storage device 100 through the balance update module.

In addition, referring to FIG. 1 and FIG. 7B , it is assumed that the website 720 is a shopping website. Similarly, the electronic device 710 will read the identification code in the portable storage device 100 and transmit the identification code to the website 720 , so that the website 720 performs authentication according to the identification code of the portable storage device 100 . That is to say, authentication is performed according to the identification code of the portable storage device 100 to determine the identity of the portable storage device 100 and to confirm whether the available balance in the portable storage device 100 is sufficient to pay the shopping amount. If enough, the available balance can be recalculated based on the shopping amount. After the online shopping action is completed, the website 720 will notify the logistics center 740 to prepare for shipment, and will notify the balance update module in the remote storage device 730 to use the balance update module to recalculate the balance through the electronic device 710. The subsequent available balance is updated to the portable storage device 100 .

To sum up, the present invention combines the antenna (non-contact chip) and the interface unit (contact connection element) in the portable storage device. That is, an interface unit is provided in the portable storage device to couple with an external electronic device. In this way, when the portable storage device is connected with the electronic device, the user can use the data in the portable storage device to conduct online transactions on the website. It is more convenient to use. In addition, the transaction details are recorded in the portable storage device, which is convenient for users to inquire in the future.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention, and any person skilled in the art may make some changes and modifications without departing from the spirit and scope of the present invention.

Claims (12)

1. A portable storage device, comprising: an interfacing unit connected to an external electronic device to receive commands from the electronic device after being connected to the electronic device; Antenna; and An electronic label unit connected to the interface unit, the electronic label unit has a storage space, the storage space stores identification codes and usage data, wherein the electronic label unit accesses the storage space according to the signal received by the antenna, and The electronic label unit accesses the storage space according to the command of the electronic device; Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the identification code is read from the storage space through the electronic tag unit, and the The unit transmits the identification code to the electronic device, so that the electronic device is authenticated to the website according to the identification code, so that after passing the authentication, the electronic device is used to perform online transactions on the website, and on the online After the transaction is executed, the electronic label unit is used to update the transaction result to the usage data. 2. The portable storage device according to claim 1, wherein the transaction result comprises at least one of currency amount, virtual points and transaction details. 3. The portable storage device according to claim 1, wherein the antenna is a radio frequency antenna, the electronic tag unit is a radio frequency identification tag, and the interface unit is one of a universal serial bus, an infrared interface, and a bluetooth interface. 4. A portable storage device, comprising: Connectors, including: control unit; and an interfacing unit connected to the control unit and used for connecting with an external electronic device to receive commands from the electronic device after being connected with the electronic device; and Identify wafers, including: Antenna; and An electronic label unit connected to the control unit, the electronic label unit has a storage space, and the identification code and usage data are stored in the storage space, wherein the electronic label unit accesses the storage space according to the signal received by the antenna, and The electronic label unit accesses the storage space according to the command of the electronic device; and Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the control unit reads the identification code from the electronic label unit, and passes the interface unit Sending the identification code to the electronic device, so that the electronic device is authenticated to the website according to the identification code, so that after passing the authentication, the electronic device is used to perform online transactions on the website, and the online transaction After the execution is completed, the control unit is used to update the transaction result to the usage data through the electronic label unit. 5. The portable storage device according to claim 4, wherein the connector further comprises: The storage unit is connected to the control unit and stores an application program, wherein the control unit executes the application program to update the usage data. 6. A system for using a portable storage device, comprising: Electronic devices connected to a website to perform online transactions on that website; Portable storage devices, including: an interfacing unit connected with the electronic device to receive commands from the electronic device after being connected with the electronic device; Antenna; and An electronic label unit connected to the interface unit, the electronic label unit has a storage space, the storage space stores identification codes and usage data, wherein the electronic label unit accesses the storage space according to the signal received by the antenna, and The electronic label unit accesses the storage space according to the command of the electronic device; and The remote storage device is connected to the electronic device through the Internet, the remote storage device stores an application program, and uses the application program to update the usage data; Wherein, when the portable storage device is connected to the electronic device through the interface unit, and the electronic device is connected to the website, the identification code is read from the storage space through the electronic tag unit, and the The connection unit transmits the identification code to the electronic device, so that the electronic device is authenticated to the website according to the identification code, so that after passing the authentication, the electronic device is used to perform online transactions in the website, and the online transaction After the execution of the above transaction is completed, the transaction result is updated to the usage data through the application. 7. A method for using a portable storage device, suitable for electronic devices, the method comprising: When it is detected that the portable storage device is connected to the electronic device, connect to the website, wherein the portable storage device includes an antenna, an electronic tag unit and the interface unit, and the electronic tag unit has an identification code, the the storage unit is connected to the electronic device through the interface unit; sending a first command to the portable storage device through the interface unit, and using the electronic tag unit to read the identification code; Go to the website for identity verification based on the identification code; Execute online transactions after confirming the identity of the portable storage device; and The second command is sent to the portable storage device through the interface unit, and the transaction result of the online transaction is updated to the portable storage device. 8. The method for using a portable storage device according to claim 7, wherein when the website is a recharge website, the step of performing the online transaction comprises: connect to a bank account; Carry out deduction actions based on the recharge amount; sending a third command to the portable storage device through the interface unit, and using the electronic tag unit to read usage data to obtain an available balance; and The available balance is recalculated based on the recharge amount. 9. The method for using a portable storage device according to claim 8, wherein the step of updating the transaction result of the online transaction to the portable storage device comprises: The recalculated available balance is updated into the usage data through the electronic label unit. 10. The method for using a portable storage device according to claim 7, wherein when the website is a shopping website, the step of performing the online transaction comprises: Sending a third command to the portable storage device through the interface unit, and using the electronic tag unit to read usage data to obtain an available balance; Determine whether the available balance is greater than the shopping amount; When the available balance is greater than the shopping amount, the available balance is recalculated based on the shopping amount. 11. The method of using a portable storage device according to claim 10, wherein the step of updating the transaction result of the online transaction to the portable storage device comprises: The recalculated available balance is updated into the usage data through the electronic label unit. 12. The method for using a portable storage device according to claim 8, wherein the available balance is currency amount or virtual points.

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