CN203070770U

CN203070770U - Mobile hard disk with switch protection function

Info

Publication number: CN203070770U
Application number: CN 201220500226
Authority: CN
Inventors: 邢博
Original assignee: 邢博
Current assignee: Beijing Lvzhi Xingye New Technology Co., Ltd.
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-07-17
Anticipated expiration: 2022-09-28

Abstract

The utility model discloses a mobile hard disk with a switch protection function. The mobile hard disk comprises a read-write protection switch, a memory bank, and a control circuit, wherein the read-write protection switch is arranged at the front end of the memory bank, and the control circuit is arranged at the front end of the memory bank inside the mobile hard disk. The mobile hard disk not only can complete the read and write function, but also can prevent the invasion of boot virus, as well as plays a role in protecting documents in the hard disk, and the accidental deletion of the documents by a user can be effectively reduced through the read-write protection switch.

Description

A kind of portable hard drive with switch protection

Technical field

The utility model relates to a kind of portable hard drive, relates in particular to a kind of portable hard drive with read-write protection switch.

Background technology

Along with development of science and technology, at present portable hard drive can not adapt to people's needs, and the portable hard drive product of various sizes, interface is more and more universal, but in use because virus, assault, maloperation etc. often cause loss of data.In use all portable hard drives do not have R/W (read-write protection switch) in addition, can not carry out the active data read-write protection to data.

For its R/W function, on the control software of control circuit design, realize the read-write protection function with combination of hardware.Make portable hard drive have the R/W defencive function as common floppy disk like this and only portable hard drive is carried out read operation at R (read states), can carry out read-write operation to portable hard drive at W (read-write state), effectively the safety of protected data.

Existing storage medium much has the read-write protection function; as: SD (Secure Digital Memory Card) card; we in the past the write-protect function of 3 cun commonly used flexible plastic discs control read-write capability by light, and hard disk be sealing thereby can not use the same method.

As long as and existing portable hard drive is connected on the computer and just can carries out read-write operation to it, without any device read-write operation is controlled, because manufacturer can not directly control hard disk, so can not finish function of reading.

Summary of the invention

For solving above-mentioned middle problem and the defective that exists, the utility model provides a kind of portable hard drive with switch protection, and this portable hard drive has function of reading.Described technical scheme is as follows:

A kind of portable hard drive with switch protection comprises:

Read-write protection switch, memory bank, control circuit, described read-write protection switch is arranged on the front end of described memory bank, and described control circuit is arranged on the front end of the internal repository of described portable hard drive

The beneficial effect of the technical scheme that the utility model provides is:

The utility model can not only be finished read-write capability, but also has prevented the invasion of guiding virus, also the file in the hard disk is had protective effect simultaneously, and has reduced the user effectively by the read-write protection switch mistake of file is deleted.

Description of drawings

Fig. 1 is the portable hard drive structural representation;

Fig. 2 is the portable hard drive process flow diagram;

Fig. 3 is portable hard drive read-write protection control circuit synoptic diagram.

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail:

As shown in Figure 1, showed the structure of portable hard drive, comprised read-write protection switch 1, memory bank 2, control circuit 3, described read-write protection switch is arranged on the front end of described memory bank, and described control circuit is arranged on the front end of the internal repository of described portable hard drive.

Above-mentioned portable hard drive also comprises an interface 4, and this interface is arranged on the lower position of described read-write protection switch.

Above-mentioned interface is USB interface, or 1394 interfaces, or the SATA interface.

Above-mentioned memory bank is preserved required the reading and writing data of user; The effective control that control circuit obtains the read-write of data, when the read-write protection switch was in off-state, control circuit read and write data arbitrarily for the user; This limb obtains high level signal when the read-write switch is connection, and then the control circuit prevention writes the hard disk signal.

When switch during at read states, the user writes data by force in hard disk, hard-disk interface transmission data then, main frame output warning message.

Be the portable hard drive process flow diagram as Fig. 2, control reading and writing data of main control chip according to the connecting and disconnecting state of read-write protection switch, when the read-write protection switch when disconnecting, then can freely read and write; If during the read-write protection switch connection, then control chip control user only allows read operation, at this moment, if the user carries out write operation by force, the main frame output warning message that will report an error.

As shown in Figure 3, showed portable hard drive read-write protection control circuit figure, main control chip comes " writing " pin status of control chip by a write-protect jumper switch.When switch disconnects, can freely read and write, when switch connection moment pin obtains high level signal, organize to write the hard disk signal.

The utility model by the read-write protection switch under the control of control chip; control the user to the read-write operation of portable hard drive; but also effectively prevented the viral invasion of guiding; simultaneously also the file in the hard disk is had protective effect, and reduced the user effectively by the read-write protection switch mistake of file is deleted.

The above is preferred embodiment of the present utility model only, is not limited to the utility model, and is all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. portable hard drive with switch protection; it is characterized in that; comprise: read-write protection switch, memory bank, control circuit, described read-write protection switch is arranged on the front end of described memory bank, and described control circuit is arranged on the front end of the internal repository of described portable hard drive.

2. the portable hard drive with switch protection according to claim 1 is characterized in that, described portable hard drive also comprises an interface, and this interface is arranged on the lower position of described read-write protection switch.

3. the portable hard drive with switch protection according to claim 1 is characterized in that, described interface is USB interface, or 1394 interfaces, or the SATA interface.