TWI588679B - Universal serial bus device and method thereof - Google Patents

Description

Universal serial bus arrangement and method thereof

The invention relates to a universal serial busbar device and method; in particular, the hardware engineering mode limitation and automation implements the clearing content, the content backup or the restored content for the storage space, and the device can implement the relevant functions according to the user's manual electrical conduction, thereby avoiding The virus overwrites the device or usually operates incorrectly.

With the prevalence of Plug and Play (PnP), the Universal Serial Bus (USB) has been widely used in messaging products such as personal computers and mobile devices, and has expanded its capabilities to photographic equipment. Digital TV (set-top box), game consoles and other related fields.

Following this, all kinds of malicious programs and viruses use the Universal Serial Bus (USB) storage device as the infection path, which indirectly encourages the harm of malicious programs and viruses to various types of terminal devices.

Generally, the most common one is to infect the magnetic area of the storage device as the main means, and the recipient relies on the automatic execution of the terminal device system to strengthen the infection, and accordingly infects the undefended device; moreover, by rewriting the universal serial bus The (Universal Serial Bus, USB) controller can change the device from the original function to the offensive device. Therefore, the popular Universal Serial Bus (USB) device on the market may have a hidden security risk that is beyond the outside world. Imagine that visitors can use a variety of generalizations by simply modifying the programmable control chip. The Universal Serial Bus (USB) device becomes a malicious device.

For example, if the device is simulated as a keyboard, the command or the malicious program can be directly input in the terminal device, or the network card can be pretending to be able to threaten the network flow of the terminal device. However, there is no way to prevent this.

In the following literature on portable devices, a number of patents are as follows: TW I299873 discloses a portable electronic data storage device that includes an auto-execution logic unit number (Autorun LUN) storage area that is set to be read-only and cannot be deleted. And configuring an application and a predetermined feature list. When the portable electronic data storage device is electrically connected to a computer, the application is automatically executed to obtain a unique feature list of the computer; and a security logic unit The Secure LUN storage area is configured to store electronic data. When the unique feature list is included in the predetermined feature list, the electronic data stored in the secure logical unit number storage area can be accessed.

TW I426389 discloses a storage device comprising a smart card device and a memory device connected to a controller. The storage device can be used in the same manner as a conventional smart card device, or it can be used to store a relatively large amount of data in various partitions. One of the partitions can be a read-only partition that is typically only accessible for read access. However, it may sometimes be necessary to update or supplement the material stored in the read-only partition. This is accomplished by a host issuing an appropriate command to the storage device, the command being accompanied by an identifier for one of the appropriate authorization levels. The controller then changes the attribute of the read-only partition from "read only" to "read/write" to allow data to be written to the partition. Upon completion, the controller changes the attribute of the partition back to read-only.

TW 2010040785 discloses a storage device that prevents writing of a virus A method for preventing a flash drive virus from being written into a storage device and a method for preventing a storage device from writing a flash drive virus to the storage device, and storing a main program for determining a virus against the disk in a read-only memory space of the storage device. Executing the main program through an operating system of the electronic device electrically connected to the storage device, when the electronic device accesses the storage device, determining whether the accessed file is a file related to the pen drive virus, and It is determined that the file associated with the pen drive virus provides access control. This ensures that the storage device is free from infection with the pen drive virus even if it is connected to an electronic device infected with a virus.

TW I414958 discloses a read-only protection method for a removable storage medium, which first establishes a forbidden write data table storing a file name of a write-protectable removable storage medium, when the removable storage medium is intended to be When a potentially poisoned storage device exchanges data, it can effectively prohibit any file that may cause poisoning of the removable storage medium from being written into the removable storage medium, but other files can still be written normally, thus not only The chance of poisoning the removable storage medium can be reduced, and the removable storage medium can still write the data required by the user, and the inconvenience is not allowed due to poisoning.

However, most of the behaviors are to prevent infections in the storage space, and there is no improvement or prevention of the controller, and the related data protection is slightly passive and not safe enough.

Accordingly, in order to solve the above problems, it is a primary object of the present invention to provide a universal serial bus arrangement and method thereof to improve the above problems.

In view of the above problems, the present invention provides a universal serial bus bar device and a method thereof for performing switching of an operation mode by electrically conducting a functional metal contact, in addition to a standard metal contact required for electrical connection, a signal and a processing unit for working mode control, borrowing This match switches the working type.

Accordingly, it is a primary object of the present invention to provide a universal serial bus arrangement and method thereof that removes the engineering planning function from the executable mode in the general mode to avoid malicious tampering with the controller.

It is still another object of the present invention to provide a universal serial busbar apparatus and method thereof that utilizes a functional metal contact separation mode of operation to reduce inadvertent erroneous operation.

Still another object of the present invention is to provide a universal serial busbar apparatus and method thereof, which is necessary to reduce tool preparation due to the virtual compact disc of the starter planning tool.

Still another object of the present invention is to provide a universal serial bus arrangement and method thereof that can reduce the cost of maintenance of the storage device via hardware level data removal.

Still another object of the present invention is to provide a universal serial bus arrangement and method thereof for enabling hardware level data backup using a functional metal contact area to achieve the most compatible data backup.

A further object of the present invention is to provide a universal serial busbar device and method thereof, which enable hardware level data restoration by functional metal contact regions to achieve the most compatible data restoration.

Still another object of the present invention is to provide a universal serial bus bar device and method thereof, which provide a light unit presentation that can quickly confirm device status.

In order to achieve the above object, the main technical means used in the present invention is achieved by the following technical solutions. The present invention is a universal serial busbar device comprising a set of standard metal contacts, at least two functional metal contacts, and a processing unit, which are supported by a substrate and electrically connected to each other; Electrically connecting one of the terminal devices to the socket, The processing unit is connected to the terminal device signal in a general storage device mode. At this time, the processing unit does not have an engineering planning function; when the functional metal contacts are electrically connected to each other, the set of standard metal contacts are electrically connected to the terminal device. The processing unit is connected to the terminal device signal in a second mode, and the processing unit has an engineering planning function.

The object of the present invention and solving the technical problems thereof can be further achieved by the following technical measures.

The foregoing device further includes a storage unit that is carried by the substrate and electrically connected to each other.

The foregoing device further includes a light emitting unit that is carried by the substrate and electrically connected to each other.

In the foregoing device, the second mode may be planning, clearing, backing up or restoring the storage unit content.

The invention is a method for executing a universal serial busbar device. Step 1: a functional metal contact of a universal serial busbar device is electrically connected to each other; Step 2: a standard contact electrical property of the universal serial busbar device Connecting one of the terminal devices to the socket; Step 3: obtaining power through the socket, and electrically conducting the related electronic components of the universal serial busbar device; Step 4: one of the universal serial busbar processing devices transmits the signal and the The terminal device signal is connected, and the processing unit has an engineering planning function.

The object of the present invention and solving the technical problems thereof can be further achieved by the following technical measures.

In the foregoing method, after the step 4, the processing unit virtualizes the optical disc of one of the storage units of the universal serial bus device into a disc device and the terminal device. Number connection.

In the foregoing method, after the step 4, the content of the storage unit of one of the universal serial bus devices is deleted and restored to the factory state.

In the foregoing method, after step 4, the first storage space of one of the storage units of the universal serial busbar device is copied to the second storage space of one of the storage units.

In the foregoing method, one of the storage units of one of the universal serial bus devices is copied to the first storage space of one of the storage units.

In the foregoing method, at the same time, one of the universal sequence busbar devices emits a light-emitting prompt.

In the foregoing method, when completed, the light-emitting unit switches the light-emitting cue color.

Compared with the prior art, the invention has the following effects: (1) avoiding malicious tampering device by engineering mode restriction; (2) using hardware level data operation to reduce software compatibility problem; (3) relying on hardware removal Data function, quick return device factory state; (4) with data backup and restore function, simple maintenance of private data.

10‧‧‧Standard metal contacts

11‧‧‧Processing unit

12‧‧‧ storage unit

121‧‧‧Virtual Planning CD

122‧‧‧First storage space

123‧‧‧Second storage space

13‧‧‧Substrate

14‧‧‧Lighting unit

20‧‧‧Functional metal contacts

21‧‧‧ functional metal contacts

22‧‧‧Functional metal contacts

30‧‧‧ Terminal equipment

31‧‧‧ socket

41‧‧‧Step 1

42‧‧‧Step 2

43‧‧‧Step 3

44‧‧‧Step 4

441‧‧‧Step 4-1

442‧‧‧Step 4-2

443‧‧‧Step 4-3

444‧‧‧Step 4-4

445‧‧‧Step 4-5

45‧‧‧Step 5

1 is a first schematic view showing a preferred embodiment of the present invention; FIG. 2 is a second schematic view showing a preferred embodiment of the present invention; and FIG. 3 is a third schematic view showing a preferred embodiment of the present invention. 4 is a fourth schematic view of a preferred embodiment of the present invention; and FIG. 5 is a fifth schematic view of a preferred embodiment of the present invention. Figure 6 is a sixth schematic view of the preferred embodiment of the present invention. Figure 7 is a first flow chart of a preferred embodiment of the present invention. Figure 8 is a second flow chart of a preferred embodiment of the present invention. Figure 9 is a third flow chart of a preferred embodiment of the present invention.

In order to make the objects, features and functions of the present invention more obvious and easy to understand, the following is a particularly preferred embodiment of the present invention: as shown in Figures 1 to 9, a universal serial busbar device and method thereof are the most A preferred embodiment of the present invention, which is a general-purpose serial busbar device comprising a set of standard metal contacts (10), at least two functional metal contacts (20, 21), and a processing unit. (11), carried by a substrate (13) and electrically connected to each other.

Specifically, the set of standard metal contacts (10) refers to the metal pins of the Universal Serial Bus (USB), which is four in the type A (Type A) before the common version 3.0. The root metal pin, and the type A (Type A) after version 3.0 is nine metal pins; in addition, the functional metal contacts (20, 21) are metal pins for adding defined functions. Auxiliary/enhanced existing functions of the conventional universal serial bus device by triggering various operation modes built in the processing unit (11); the processing unit (11) refers to a microprocessor (Microprocessor, μP) conforming to the universal serial bus bar specification ), having electronic components for controlling device master-slave, proposing device type, and data transfer; then, the substrate (13) is usually a high-density double-sided conductive multilayer printed circuit board with lines formed therein (not shown) The utility model can be used as an electrical transmission interface, so that the set of standard metal contacts (10) and the functional metal contacts (20, 21) are electrically connected to the processing unit (11) through the substrate (13).

Preferably, a universal serial busbar device of the present invention further comprises a storage unit (12) and an illumination unit (14), the storage unit (12) and the illumination unit (14) are carried by the substrate (13) and electrically connected to each other.

The storage unit (12) can be a flash memory (FLASH), a static random access memory (SRAM), or a special-purpose integrated circuit (Application-Specific-Integrated-Circuit, ASIC), a memory chip or a Synchronous-Dynamic-Random-Access-Memory (SDRAM) type; and the light-emitting unit (14) is exemplified herein as a light-emitting diode (Light-Emitting) Diode (LED) is a kind of semiconductor electronic component that can emit light. It is a composite light source composed of trivalent and pentavalent elements. It mainly has light-emitting and low-power consumption characteristics.

Next, please refer to the first embodiment of the method for executing the universal serial busbar device according to the second and seventh figures; the steps are as follows: a two-function metal touch of a universal serial busbar device Points (20, 21) are electrically conductive to each other (step 1: 41); followed by a set of standard contacts (10) of the universal serial busbar device electrically connected to one of the sockets (31) of a terminal device (30) ( Step 2: 42); then, the power is taken by the socket (31), and the relevant electronic components of the storage device are electrically turned on (step 3: 43); finally, one of the processing units of the universal serial bus device transmits the signal Connected to the terminal device signal, and the processing unit has an engineering planning function (step 4: 44).

Referring to the first embodiment of the detailed description, first referring to FIG. 2 and step 1 (41), before the universal serial busbar device is electrically connected to the terminal device (30), the two-function metal contact ( 20, 21) electrically conductive, and the electrical conduction behavior can be achieved by external accessories or simple pencil painting, and then refer to step 2 (42), one of the universal serial bus contacts standard contacts (10) Electrically connecting one of the terminals (31) of one terminal device (30), resulting in The socket (31) of step 3 (43) obtains power, and electrically turns on the standard metal contacts (10), the processing unit (11), the functional metal contacts (20, 21), and the substrate (13) of the storage device. Thereby, the electronic component function of the universal serial busbar device is initialized, and in step 4 (44), the processing unit (11) transmits a signal to the terminal device (30) via the set of standard contacts (10). And the processing unit (11) has an engineering planning function.

Specifically, step 1 (41) mainly describes the behavior of the two-function metal contacts (20, 21) electrically connected to each other as shown in FIG. 2; subsequently, step 2 (42) is a general-purpose serial busbar device. Obtaining the process of power and signal connection; followed by the electronic components in the universal serial busbar device in step 3 (43) to obtain power and run; finally, step 4 (44) first expresses that the universal sequence busbar device has engineering planning functions, and The general-purpose serial busbar device does not have the engineering planning function without the step 1 (41) as in the first figure.

The engineering planning function refers to a communication mode between the processing unit (11) and the terminal device (30) that is compatible with a universal serial bus (USB), which may be a device classification and a keyboard predetermined input signal. Or network signal steering and so on.

Referring to Figures 3 and 8, there is shown a second embodiment of a universal serial busbar device and method thereof according to the present invention; features and features described in the first embodiment and Figures 1, 2 and 7 3 and 8 are the same, and the symbols in the 3rd and 8th drawings are omitted or omitted. The main difference between the second embodiment and the first embodiment is that the universal serial bus device of the present embodiment has a storage unit (12), and step 4-1 (441) is added after step 4 (44). Therefore, there is a virtual planning disc provided.

Specifically, after the first embodiment is implemented, as shown in FIGS. 3 and 8, following step 4-1 (441), the processing unit (11) stores the storage unit (12) of the universal serial bus device. One of the virtual planning optical discs (121) is connected to the terminal device (30) by means of a disc player device.

Actually, the virtual plan optical disc (121) is the stored data in the storage unit (12), and the data is provided by the processing unit (11) in a disc device type and connected to the terminal device (30); In the embodiment, the content of the virtual plan optical disc (121) refers to an engineering software having a planning processing unit (11) for reducing the search tool, and the first storage space (122) and the first In the case of the second storage space (123), the engineering planning function planning device classification, the keyboard predetermined input signal or the network signal guiding, etc. may be provided; and the first storage space (122) and the second as shown in FIG. 3 are provided. In the case of storage space (123), a related plan for the size of the magnetic zone can be provided.

Referring to Figures 4, 5, 6 and 9 again, a third embodiment of a universal serial busbar device and method thereof according to the present invention; in the first and second embodiments and the first, second, third, and seventh embodiments The features that have been described in the drawings are the same as those in the fourth, fifth, sixth, and ninth embodiments, and the symbols in the fourth, fifth, sixth, and ninth diagrams are omitted or omitted. The main difference between the third embodiment and the first embodiment is that the universal serial busbar device of the present embodiment has a storage unit (12) and a three-function metal contact (20, 21, 22), and is in step 4 ( 44) after adding steps 4-2 (442), steps 4-3 (443), steps 4-4 (444), steps 4-5 (445), and step 5 (45), thus providing cleanup, backup or restore The effect of the content of the storage unit (12).

In the example of the present application, the three processes are divided into clearing, backup or restoration, and the part of the clearing process is described first; first, the process is cleared, as shown in Figures 4 and 9, when the first embodiment is implemented (the difference is in step 1 ( 41) wherein the two functional metal contacts (20, 21, 22) of the two functional metal contacts (20, 22) are electrically connected to each other, followed by step 4-2 (442), the step 4-2 (442) The content of the storage unit (12) of one of the universal serial bus devices is deleted and restored to the factory state, Then, during operation, as shown in step 4-5 (445), the illumination unit (14) of the universal sequence busbar device emits a light prompt, and when completed, the illumination unit (14) switches the illumination prompt color as in step 5 (45).

Look again, the part of the backup process, as shown in Figures 5 and 9, when the first implementation is implemented (the difference is the function of the three-function metal touch (20, 21, 22) in step 1 (41). The metal contacts (21, 22) are electrically connected to each other, followed by step 4-3 (443), which is the first storage of one of the storage units (12) of the universal serial busbar device. The space (122) is copied to the second storage space (123) of one of the storage units (12), and then the illumination unit (14) of the universal sequence busbar device is illuminated during the operation, as shown in steps 4-5 (445). When finished, the light-emitting unit (14) switches the light-emitting prompt color as in step 5 (45).

Finally, the part of the reduction process, as shown in Figures 6 and 9, after the implementation of the first embodiment (the difference is in step 1 (41) is the two functional metal of the three-function metal touch (20, 21, 22) The contacts (20, 21) are electrically connected to each other, followed by step 4-4 (444), which is a second storage space of one of the storage units (12) of the universal serial busbar device. (123) copying to a first storage space (122) of the storage unit (12), and then, during operation, as shown in steps 4-5 (445), the illumination unit (14) of the universal serial busbar device emits a prompt, when After completion, the light-emitting unit (14) switches the light-emitting prompt color as in step 5 (45).

Specifically, the first storage space (122) and the second storage space (123) are storage data partitions in the storage unit (12), and the external storage device type and the terminal via the processing unit (11) The device (30) signal connection provides interaction; wherein the interaction between the metal touch points (20, 21, 22) affects the operation mode, as shown in Fig. 4, the two-function metal touch (20, 22), such as the fifth The two-function metal touch (21, 22) or the two-function metal touch (20, 21) and the like as in Fig. 6; the light-emitting unit (14) is given in the form of lamp color, flicker frequency, and the like. It is known to provide an execution status for clearing, backing up, or restoring the contents of the storage unit (12).

Therefore, the effect of the present invention is different from the general universal serial busbar device, which is the first in the application of the universal serial busbar device, and meets the requirements of the invention patent, and submits an application according to law.

However, it should be reiterated that the above description is only a preferred embodiment of the present invention, and the equivalent changes of the specification, the patent scope or the drawings of the present invention are still within the technical scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

10‧‧‧Standard metal contacts

11‧‧‧Processing unit

13‧‧‧Substrate

20‧‧‧Functional metal contacts

21‧‧‧ functional metal contacts

30‧‧‧ Terminal equipment

31‧‧‧ socket

Claims (11)

A universal serial busbar device comprising a set of standard metal contacts (10), at least two functional metal contacts (20, 21) and a processing unit (11) supported by a substrate (13) and electrically connected to each other The connection is characterized in that when the set of standard contacts (10) is electrically connected to a socket (31) of a terminal device (30), the processing unit (11) signals with the terminal device (30) in a general storage device mode. Connection, at this time, the processing unit (11) does not have an engineering planning function; when the functional metal contacts (20, 21) are electrically connected to each other, the set of standard metal contacts (10) are electrically connected to the terminal device ( 30) the socket (31), the processing unit (11) is connected to the terminal device (30) by a second mode, and the processing unit (11) has an engineering planning function; wherein the engineering planning function is defined The processing unit (11) and the terminal device (30) are compatible with a universal serial bus (USB) communication method. The device according to claim 1 further comprises a storage unit (12) carried by the substrate (13) and electrically connected to each other. The device according to claim 1 further comprises a light-emitting unit (14) carried by the substrate (13) and electrically connected to each other. According to the device described in claim 2, the second mode may be to plan, clear, backup or restore the storage unit content. A method for executing a universal serial busbar device, step 1: a functional metal contact of a universal serial busbar device is electrically conductive (41); step 2: a set of standard contact electrical properties of the universal serial busbar device Connecting a socket (42) of a terminal device; Step 3: obtaining power through the socket, and electrically conducting the related electronic component (43) of the universal serial busbar device; Step 4: one of the universal serial busbar devices The processing unit transmits a signal to the terminal device signal, and the processing unit has an engineering planning function (44) that defines a communication mode compatible with the terminal device (Universal Serial Bus (USB)). According to the method of claim 5, after the step 4, the processing unit connects the virtual planning optical disc of one of the storage units of the universal serial busbar device to the terminal device signal by means of the optical disc device (441). . According to the method of claim 5, after the step 4, the content of the storage unit of one of the universal serial bus devices is deleted and restored to the factory state (442). According to the method of claim 5, after the step 4, the first storage space of one of the storage units of the universal serial busbar device is copied to the second storage space (443) of the storage unit. According to the method of claim 5, after the step 4, the second storage space of one of the storage units of the universal serial busbar device is copied to the first storage space (444) of the storage unit. According to the method described in claim 7, 8 or 9, the illumination unit of one of the universal serial busbars emits a light-emitting prompt (445). According to the method described in claim 10, when completed, the light-emitting unit switches the light-emitting color (45).