JP5850564B2 - Data deletion apparatus and data amount confirmation batch deletion method - Google Patents

Description

The present invention relates to a stored Lud over data deletion unit and a data amount check batch deletion process to delete the data in the external storage device and an external storage device.

  In recent years, USB memories have become widespread for data exchange and data storage between information processing apparatuses such as personal computers (hereinafter also referred to as “PCs”). By connecting a USB memory connector to a USB port of a PC, the USB memory can immediately read and write data to the USB memory without installing a driver or the like on the PC.

  As described above, since the USB memory is convenient for data storage and delivery, it is used not only by individuals but also by organizations such as companies and public offices. If the data stored in the USB memory is no longer needed, deleting all the data in the USB memory repeatedly uses the USB memory for other purposes while preventing information leakage and fraud. can do.

However, to completely delete the data stored in the USB memory, connect the USB memory to the PC, display the file name of the data in the memory on the PC display, and select the displayed file name sequentially Then, it was necessary to perform a time-consuming operation of deleting.
Further, when there are a plurality of USB memories from which data is to be deleted, it is necessary to insert the plurality of USB memories one by one into the USB port of the PC and erase the data, which is troublesome.

  In Patent Document 1, by providing a battery for power supply and a display device in a USB memory, virus detection is performed without attaching the USB memory to a PC, and a list of data files recorded in the USB memory or a virus is displayed. It is described that an infected file name is displayed on a display device, and a selected file or folder is deleted by a user selecting a file and operating a delete switch button.

  In Patent Document 2, a USB memory is mounted on a PC, the PC is restarted, an erase program stored in the USB memory is executed to completely erase data in the PC, and complete erase is performed. It is described that by storing erasure date / time information indicating the date / time in the USB memory, the administrator can grasp that the data has been erased from the erasure date / time information stored in the USB memory.

JP 2010-218082 A JP 2006-330886 A

When using the technique described in Patent Document 1, it is necessary to display the files and folders stored in the memory on the display device of the USB memory and check whether the data is stored in the USB memory. It takes time and effort. In addition, when deleting data in the USB completely, it is necessary to select and delete files and folders displayed on the display device one by one, which takes time and effort.
In addition, when the technique described in Patent Document 2 is used, it is necessary to connect the USB memory to the PC or restart the PC to erase the data in the PC, which takes time and effort.

The present invention has been made to solve the above problems, without the hassle and time, de chromatography which can be removed in a batch the data stored in an external storage device such as a USB memory An object of the present invention is to provide a data deletion device and a data amount confirmation batch deletion method.

Further, the present invention is without the hassle and time, to provide a data deletion unit and a data amount check batch deletion method capable of confirming whether the data in the external storage device is stored Objective.
Further, the present invention is not to connect an external storage device to the information processing apparatus such as a personal computer, without the hassle and time, de chromatography capable of grasping the amount of data stored in the external storage device An object of the present invention is to provide a data deletion device and a data amount confirmation batch deletion method.

The present invention also provides a data deletion device capable of efficiently deleting data stored in a plurality of external storage devices when there are a plurality of external storage devices from which stored data is to be deleted, and The purpose is to provide a method for batch deletion of data volume confirmation .

In order to achieve the above object, an external storage device according to the present invention is an external storage device that can be electrically connected to an information processing device, and is stored in storage means for storing data and the storage means. Data deletion means for deleting data collectively and data amount display means for performing display according to the amount of data stored in the storage means are provided.
According to the present invention, the data stored in the external storage device can be deleted in a lump without spending time and effort, or the amount of data stored in the external storage device can be confirmed by the display by the data amount display means. be able to.

In the above invention, a deletion operation unit for instructing data deletion is further provided, and the data deletion unit stores data stored in the storage unit in response to an operation of the deletion operation unit. It is characterized by deleting.
According to the present invention, the user can easily delete data in a lump without operating time and effort by operating the delete operation unit.

In the above invention, the data amount display means indicates the data amount stored in the storage means by changing the display mode according to the data amount stored in the storage means.
According to the present invention, the user can easily grasp the amount of data stored in the external storage device without taking time and effort by the display mode changed by the data amount display means.

In the above-mentioned invention, a plurality of lamps are further provided, and the data amount display means changes the light emission mode of the plurality of lamps according to the data amount stored in the storage means.
According to the present invention, the user can easily grasp the amount of data stored in the external storage device without taking time and effort by changing the light emission mode of the lamp.

The above invention is characterized in that it further comprises power supply means for supplying power to each of the means.
According to the present invention, the data stored in the external storage device can be deleted all at once without connecting the external storage device to an information processing device such as a personal computer, without taking time and effort, or the data amount display means It is possible to confirm the amount of data stored in the external storage device by displaying according to.

The data deletion device according to the present invention is a data deletion device for deleting data stored in an external storage device, and a plurality of connection terminals that can be electrically connected to the external storage device, and the plurality of connections Data stored in an external storage device connected to the connection terminal corresponding to the deletion operation unit, triggered by detection of an operation on the deletion operation unit, a plurality of deletion operation units provided corresponding to each terminal And a data deleting means for deleting all of the data at once.
According to the present invention, a plurality of external storage devices are electrically connected to a plurality of connection terminals included in the data deletion device, and each deletion operation unit provided corresponding to each connection terminal is operated. The data stored in each external storage device can be efficiently deleted.

In the above invention, the data storage device further comprises a data amount display means provided corresponding to each of the plurality of connection terminals and performing display according to the data amount stored in the external storage device electrically connected to the connection terminals. It is characterized by that.
According to the present invention, the user can easily grasp the amount of data stored in the external storage device without taking time and effort by the display by the data amount display means.

In the above invention, the plurality of connection terminals are arranged in parallel.
According to the present invention, since the plurality of connection terminals are arranged in parallel, the deletion process can be performed by easily connecting each of the external storage devices to each of the plurality of connection terminals.

  According to the present invention, the data stored in the external storage device can be deleted all at once without connecting the external storage device to an information processing device such as a personal computer, without taking time and effort, or the data amount display means The amount of data stored in the external storage device can be confirmed by the display according to.

It is a top view which shows the external appearance of the USB memory which concerns on 1st Embodiment of this invention. FIG. 2 is a block diagram showing a hardware configuration of a USB memory according to the same embodiment. It is a block diagram which shows the function structure of the USB memory which concerns on the same embodiment. It is a flowchart which shows the operation | movement procedure of the USB memory which concerns on the same embodiment. It is a perspective view which shows the external appearance of the data deletion apparatus which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the function structure of the data deletion apparatus which concerns on the same embodiment.

Hereinafter, an embodiment in which an external storage device of the present invention is applied to a USB memory will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a plan view showing an appearance of a USB memory 1 according to the first embodiment of the present invention. The USB memory 1 has a rectangular parallelepiped housing 12. A connector (connection terminal) 14 based on the USB standard is provided on the side surface of the housing 12 so as to protrude outward from the housing 12. The connector 14 can be inserted into a USB port (not shown) provided in a device such as a PC. Note that the shape of the housing 12 of the USB memory 1 is not limited to a rectangular parallelepiped, and may be any shape such as an elliptical shape or a spherical shape.

  A deletion operation unit 16 is provided on another side surface of the housing 12. The delete operation unit 16 is, for example, a push-type button switch. When the delete operation unit 16 is pressed, a CPU (to be described later) included in the USB memory 1 detects that fact, and the data stored in the USB memory 1 is All are deleted at once. The deletion operation unit 16 is not limited to the push type, and may be a rotation switch or other switches.

  A power switch button 18 is provided on another side surface of the housing 12. The power switch button 18 is a button for turning on / off the supply of power from a power source described later included in the USB memory 1. When the power switch button 18 is pressed while power supply from the power supply is turned off, power is supplied from the power supply to the USB memory 1. As a result, the USB memory 1 can be operated without connecting the USB memory 1 to the PC and receiving power from the PC. Further, when the power switch button 18 is pressed in a state where the power supply from the power supply is on, the power supply from the power supply is turned off.

  On one main surface of the housing 12, five lamps 20 are arranged along the longitudinal direction. The lamp 20 may be, for example, an LED (Light Emitting Diode) lamp, an incandescent lamp, a halogen lamp, a fluorescent lamp, or a discharge lamp.

  Although the lamp 20 will be described in detail later, the display mode changes according to the amount of data recorded in the USB memory 1. Therefore, the user can recognize from the display mode whether or not data is stored in the memory and how much data is stored when stored.

  FIG. 2 is a block diagram showing a hardware configuration of the USB memory 1. As shown in the figure, the USB memory 1 includes a controller LSI (Large Scale Integrated Circuit) 22 and a flash memory 24 as hardware.

  The controller LSI 22 includes a USB interface (I / F) 26, a lamp controller 28, a CPU (Central Processing Unit) 30, a RAM (Random Access Memory) 32, a ROM (Read Only Memory) 34, and a flash memory interface ( I / F) 36 and a power source 38, which are connected by a bus 40.

  The USB interface 26 communicates with the PC according to the USB standard when a PC port is connected to the connector 14 of the USB memory 1. The USB interface 26 outputs data transmitted from the PC to the bus 40, and the data output to the bus 40 is transferred to the flash memory 24 via the flash memory interface 36 and stored in the flash memory 24. The USB interface 26 transfers data read from the flash memory 24 to the PC via the flash memory interface 36 and the bus 40.

The lamp controller 28 receives a command from the CPU and controls the light emission of the lamp 20.
The CPU 30 develops various programs stored in the ROM 34 on the RAM 32 and executes them, thereby realizing each function described later and controlling each unit connected via the bus 40.

Various programs such as a program for deleting data and a program for controlling the lamp controller stored in the flash memory 24 are stored in the ROM 34 in advance.
The RAM 32 is a memory for temporarily storing data.

The flash memory interface 36 controls reading / writing of data with respect to the flash memory 24.
The flash memory 24 is a nonvolatile memory that does not lose data even when the power is turned off, and can store various data or delete stored data.
The power source 38 is a rechargeable battery and supplies power to each unit connected by the bus 40.

Next, the functional configuration of the USB memory 1 will be described with reference to FIG. FIG. 3 is a block diagram showing a functional configuration of the USB memory 1. As shown in the figure, the USB memory 1 includes a storage unit 101, a data deletion unit 102, a data amount display unit 103, and a power supply unit 104.
The storage means 101 is composed of the flash memory 24 shown in FIG. 2, and stores data.

  The data deletion unit 102 is a function realized by the CPU 30 executing a process according to a data deletion program stored in the ROM 34. When it is detected that the deletion operation unit 16 is operated, Data stored in the storage unit 101 is deleted at once.

  The data amount display means 103 includes a lamp 20, a lamp controller 28 that controls the display mode of the lamp 20, and a function that is realized when the CPU 30 executes processing according to a lamp controller control program stored in the ROM 34, The display mode of the lamp is changed according to the amount of data stored in the storage means 101.

  For example, when no data is recorded in the storage unit 101, the data amount display unit 103 causes all the five lamps 20 provided on the main surface of the housing 12 of the USB memory 1 to emit green light. When the ratio of the amount of data stored in the storage unit 101 to the total storage capacity is more than 0% and less than 20%, the data amount display unit 103 displays only the leftmost lamp 20a among the five lamps 20 in red. The other lamps 20b, 20c, 20d, and 20e emit green light. When the ratio of the data amount stored in the storage means 101 to the total storage capacity is 20% or more and less than 40%, the data amount display means 103 includes two data elements arranged at the first and second positions from the left end. The lamps 20a and 20b emit red light, and the other three lamps 20c, 20d and 20e emit green light. When the ratio of the data amount stored in the storage means 101 to the total storage capacity is 40% or more and less than 60%, the data amount display means 103 includes three lamps 20a arranged in the first to third positions from the left end. , 20b, and 20c emit red light, and the other two lamps 20d and 20e emit green light. When the ratio of the data amount stored in the storage means 101 to the total storage capacity is 60% or more and less than 80%, the data amount display means 103 includes four lamps 20a arranged in the first to fourth positions from the left end. , 20b, 20c, and 20d emit red light, and the other lamp 20e emits green light. When the ratio of the data amount stored in the storage unit 101 to the total storage capacity is 80% or more, the data amount display unit 103 causes all the lamps 20 to emit red light.

  As a method of changing the emission color of the lamp 20, a phosphor whose emission color changes according to the excitation wavelength is applied to each lamp 20, and the lamp 20 is filled with a gas whose spectral distribution of ultraviolet rays emitted changes depending on the discharge state. . By adjusting the time of the pulse width of the voltage applied to the lamp 20 and the repetition period, the excitation wavelength can be changed to change the emission color.

Alternatively, the emission color may be changed by rotating a disc on which color filters having different emission colors are arranged and changing the color of the color filter through which the illumination light from the illumination lamp passes.
Moreover, as a display mode, not only the color may be changed, but the number of lamps 20 to be lit may be changed or the lamps 20 may be blinked according to the amount of stored data.

  The power supply unit 104 includes the power supply 38 shown in FIG. 2 and supplies power to the USB memory 1. By providing the power supply means 104 in the USB memory 1, the USB memory 1 can be operated without connecting the USB memory 1 to the PC in order to receive the supply of power from the PC.

In the USB memory 1 configured as described above, when the user presses the power switch button 18 of the USB memory 1 while the power is turned off from the power supply 38, the power supply unit 104 supplies power to the USB memory 1 ( Step S101 in FIG.
The data amount display unit 103 acquires the data amount stored in the storage unit 101, and changes the emission colors of the five lamps 20 in accordance with the data amount (step S102 in FIG. 4).

  When all of the five lamps 20 emit green light, it means that no data is stored in the storage unit 101, so the user may confirm that no data is stored in the USB memory 1. it can. On the other hand, if there is at least one lamp 20 that emits red light, it means that data is stored in the storage means 101, and the user operates the delete operation unit 16 (in step 103 in FIG. 4). Yes). As a result, the data deletion unit 102 deletes the data stored in the storage unit 101 at once (step S104 in FIG. 4). The data amount display means 103 acquires information indicating that no data is stored in the storage means 101, and causes all the lamps 20 to emit green light (step S105 in FIG. 4). As a result, the user can confirm that no data is stored in the USB memory 1.

  In this way, the amount of data stored in the USB memory can be easily confirmed by the display mode of the lamp 20 without connecting the USB memory 1 to the PC, and the USB operation can be performed by pressing the delete operation unit 16. Data stored in the memory 1 can be deleted all at once, and data deletion and data amount confirmation can be performed without taking time and effort.

  The power supply means 104 is not limited to a rechargeable battery, but may be a dry battery or a tag using RFID (Radio Frequency Identification) technology. In this case, the power supply means 104 has a function of converting radio waves from the reader into electric power.

Alternatively, the power supply unit 104 may be provided in the USB memory 1, and the USB memory 1 may be connected to an information processing apparatus such as a PC so that power is supplied from the information processing apparatus to the USB memory 1. In this case, the power switch button 18 is not necessary for the USB memory 1.
Further, a display may be provided instead of the lamp 20, and the stored data amount, the ratio of the data amount to the total storage capacity, and the like may be displayed on the display.

(Second Embodiment)
Next, a second embodiment will be described. In the present embodiment, a data deletion apparatus for deleting data stored in the plurality of USB memories 1 according to the first embodiment or a plurality of general USB memories will be described.

  FIG. 5 is a perspective view showing the appearance of the data deletion device 50. The data deletion device 50 has a rectangular parallelepiped shape, and a plurality of connection terminals 52 to which a connector of a USB memory can be connected are arranged in parallel on the front surface of the data deletion device 50. By arranging in parallel, when there are a plurality of USB memories from which data is to be deleted, each of the plurality of USB memories can be easily connected to each of the plurality of connection terminals 52. In the figure, five connection terminals 52 are arranged in parallel. However, the number of connection terminals 52 arranged in parallel is not limited to this, and may be three or ten, for example. Moreover, although the connection terminal 52 is arrange | positioned in 1 row in the figure, you may arrange | position in 2 rows or 3 rows.

  In the vicinity of each connection terminal 52, a delete operation unit 56 and a lamp 60 are arranged in association with the connection terminal 52. Each lamp 60 includes five lamps 60a, 60b, 60c, 60d, and 60e. The delete operation unit 56 and the lamp 60 according to the second embodiment have the same configuration as the delete operation unit 16 and the lamp 20 according to the first embodiment, and the five lamps 60a, 60b, 60c, 60d, and 60e are the first ones. This corresponds to the lamps 20a, 20b, 20c, 20d, and 20e according to the embodiment.

The data deletion device 50 includes a CPU, a ROM, a RAM, a lamp controller, and a power source (not shown) as a hardware configuration.
The ROM stores in advance a program for deleting data stored in the mounted USB memory and a program for controlling the display mode of the lamp 60 in accordance with the amount of data stored in the USB memory. Yes.

When the CPU executes processing according to the program stored in the ROM, the data deletion unit 502 and the data amount display unit 503 shown in FIG.
The data deletion unit 502 collectively deletes data stored in the USB memory connected to the connection terminal 52 corresponding to the operated deletion operation unit 56, when the operation for the deletion operation unit 56 is detected.

  The data amount display means 503 is provided corresponding to each of the plurality of connection terminals 52, and changes the display mode of the lamp 60 according to the data amount stored in the USB memory connected to the connection terminal 52. The method of changing the display mode of the lamp 60 is the same as the display mode of the lamp 20 described in the first embodiment.

  By using such a data deletion device 50, a plurality of USB memory connectors are connected to a plurality of connection terminals 52 provided in the data deletion device 50, and are arranged in the vicinity corresponding to each connection terminal 52. By operating each deletion operation part 56, the data memorize | stored in each USB memory can be deleted efficiently.

  Whether or not the data is stored in each USB memory connected to each connection terminal 52 or whether all the data has been deleted, depending on the display mode of the lamp 60 disposed in the vicinity corresponding to each connection terminal 52. The user can easily grasp the above.

  In the above-described embodiment, the external storage device is a USB memory and the communication interface is a USB interface. However, a storage device other than the USB memory may be used as the external storage device, and in this case, communication is performed. As the interface, IEEE 1304, a serial interface, infrared rays, or the like may be used.

DESCRIPTION OF SYMBOLS 1 ......... USB memory, 12 ......... Case, 14 ......... Connector, 16 ......... Delete operation part, 18 ......... Power switch button, 20 ......... Lamp, 22 ......... Controller LSI, 24 ......... Flash memory, 26 ......... USB interface, 28 ......... Lamp controller, 30 ......... CPU, 32 ......... RAM, 34 ......... ROM, 36 ......... Flash memory interface, 38 ......... Power supply 40... Bus 101 101 Storage means 102 Data deletion means 103 Data amount display means 104 Power supply means 50 Data deletion device 52 ...... Connection terminal, 56... Delete operation section, 60.

Claims (2)

A plurality of connection terminals that can be electrically connected to an external storage device, a plurality of deletion operation units provided corresponding to each of the plurality of connection terminals, and the deletion triggered by detection of an operation on the deletion operation unit Data deletion means for collectively deleting data stored in the external storage device electrically connected to the connection terminal corresponding to the operation unit, and always provided by supplying power provided corresponding to each of the plurality of connection terminals Data comprising: a plurality of lamps for emitting light; and a data amount display means for performing display according to the amount of data stored in an external storage device electrically connected to the connection terminal using the plurality of lamps. A data amount confirmation batch deletion method performed in a deletion device,
Electrically connecting an external storage device to the connection terminal;
A data amount display step in which the data amount display means always performs display according to the amount of data stored in the external storage device using the plurality of lamps by supplying power;
The connection corresponding to the deletion operation unit triggered by detection of an operation on the deletion operation unit corresponding to the connection terminal when the display according to the amount of data is always performed. And a step of collectively deleting data stored in the external storage device electrically connected to a terminal .   A plurality of connection terminals electrically connectable to an external storage device;
  A plurality of deletion operation sections provided corresponding to each of the plurality of connection terminals;
  A plurality of lamps that are provided corresponding to each of the plurality of connection terminals and always emit light by supplying power;
  Data amount display means for performing display according to the amount of data stored in an external storage device electrically connected to the connection terminal using the plurality of lamps;
  An external storage device electrically connected to the connection terminal corresponding to the delete operation unit when power is supplied and the plurality of lamps always emit light, triggered by detection of an operation on the delete operation unit Data deletion means for deleting stored data in a batch;
  A data deletion device comprising:

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