CN103164351B - data access method - Google Patents

Abstract

A data access method is suitable for a mobile communication device. The storage unit of the mobile communication device comprises a specific block and an original block. In the method, in the protection mode, when the executed operation data adopts a mapping mode, the specific block is accessed according to the mapping mode. On the other hand, when the executed operation data does not adopt the mapping mode, the operation data is recorded to the original block.

Description

data access method

technical field

The invention relates to a data protection mechanism, in particular to a data access method of a mobile communication device with a protection mode.

Background technique

With the development of technology, consumer electronic products such as personal digital assistants (Personal Digital Assistant, PDA), portable computers and smart mobile phones (SmartPhone) are becoming more and more popular. Diversification. For example, many users can not only answer and make phone calls through the mobile communication device, but also record daily life items or work items through the mobile communication device. Consumer electronics products have become an indispensable tool in life or work.

However, if other users mistakenly change the settings or delete the original data by mistake when using the mobile communication device, it will cause confusion to the owner of the mobile communication device in use. For example, there are other members in the user's family, such as younger children playing with their father's mobile phone, accidentally changing the settings in the mobile phone, or accidentally deleting the address book, etc. troubles of those.

Contents of the invention

The invention provides a data access method, which realizes the protection of original data by setting a protection mode in a mobile communication device.

The invention proposes a data access method suitable for mobile communication devices. In the method, a specific block is divided in the storage unit of the mobile communication device, so that the operation data executed when the protection mode is enabled is stored in the specific block. The storage unit also includes a raw block for storing operation data executed when the protection mode is disabled. In addition, it is determined whether the operation data executed in the state where the protection mode is enabled adopts a mapping (mapping) method. When it is determined that the operation data executed in the state where the protection mode is enabled adopts the mapping method, the specific block is accessed according to the mapping method. When it is determined that the operation data executed in the state where the protection mode is enabled does not use the mapping method, the operation data is recorded in the original block.

In an embodiment of the present invention, when it is determined that the operation data performed in the state where the protection mode is enabled adopts the mapping method, it can also be determined that the operation performed in the state where the protection mode is enabled is read operation or write operation. When performing a write operation in a state where the protection mode is enabled, the operation data is written into a specific block. When the read operation is performed with the protection mode enabled, the corresponding file is read from a specific block.

In an embodiment of the present invention, when the read operation is performed when the protection mode is enabled, it may also be determined whether a file corresponding to the read operation exists in the specific block. If the corresponding file exists in the specific block, the file is read; otherwise, if the corresponding file does not exist in the specific block, the corresponding file is read from the original block.

In one embodiment of the present invention, when the write operation is performed in the state where the protection mode is enabled, the corresponding file in the original block can be copied to the specific block, so as to write the operation data into the specific block files in .

In an embodiment of the present invention, the above-mentioned data access method further includes adding an identification mark to the operation data not using the mapping method. Accordingly, by judging whether the operation data has an identification mark, it can be judged whether the operation data executed in the state where the protection mode is enabled adopts the mapping method. The operation data with the identification flag is determined not to adopt the mapping method, and the operation data without the identification flag is determined to adopt the mapping method.

In an embodiment of the present invention, the above data access method further includes determining whether the protection mode is enabled. If protected mode is not enabled, access the original block. If the protection mode is enabled, a step of judging whether the operation data executed in the state of the protection mode is enabled adopts a mapping method is performed.

In an embodiment of the present invention, the above data access method further includes deleting the operation data of the specific block after disabling the protection mode.

In an embodiment of the present invention, the above-mentioned operation data in a mapping manner is, for example, one of ordinary files, database files, attribute values, and registry tables. The above-mentioned operation data not using the mapping method is a telephone signal or a short message.

Based on the above, by dividing the original block and the specific block in the storage unit of the mobile communication device, the specific block is accessed when the protection mode is enabled, and the original block is accessed when the protection mode is not enabled. Therefore, the protection of the original data is realized through the protection mode, and the operation data in the protection mode state will not affect the operation data in the original block.

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

Description of drawings

FIG. 1 is a flowchart of a data access method according to a first embodiment of the present invention.

FIG. 2 is a flowchart of a data access method according to a second embodiment of the present invention.

Reference signs:

S105-S120: each step of the data access method in the first embodiment

S205-S245: each step of the data access method in the second embodiment

detailed description

Consumer electronic products have become an indispensable tool in life or work, and how to make other members of the family (such as children) buy and operate the same mobile communication device as they like without destroying the original settings and data. Therefore, the present invention proposes a data access method, which realizes the protection of original data by setting a protection mode in the mobile communication 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. 1 is a flowchart of a data access method according to a first embodiment of the present invention. In this embodiment, in order to prevent other users from destroying the original settings and data, a protection mode is set in the mobile communication device. For example, when the mobile communication device is intended to be used by other users, the protection mode can be enabled to prevent other users from changing the original data in the mobile communication device. The steps of the data access method of the mobile communication device will be described in detail below.

Referring to FIG. 1 , in step S105 , a specific block is divided in the storage unit of the mobile communication device to store operation data executed when the protection mode is enabled. Furthermore, the storage unit includes an original block and a specific block, wherein the original block is used to store operation data executed under a normal state (that is, when the protection mode is disabled). For example, when the protection mode is disabled, the mobile communication device will access the original block; and when the protection mode is enabled, the mobile communication device will access the specific block. In addition, after disabling the protection mode, the operation data of the specific block will be deleted.

Next, in step S110, the mobile communication device will determine whether the operation data executed in the state where the protection mode is enabled adopts the mapping method. The mapping method is, for example, a memory mapping method, but it is not limited thereto. For example, an identification flag can be added to the operation data that does not adopt the mapping method. Accordingly, by judging whether the operation data has an identification mark, it can be judged whether the operation data executed in the state where the protection mode is enabled adopts the mapping method. The operation data with the identification flag is determined not to adopt the mapping method, and the operation data without the identification flag is determined to adopt the mapping method.

For example, general operation data can be identified by its path name (such as "/system/usr/..."). Operation data that does not use the mapping method can be preceded by a special mark, such as "^", in front of the regular path name. Therefore, if the path name of the operation data does not have a special flag, it means that the operation data is mapped.

When it is determined that the operation data executed in the state where the protection mode is enabled adopts the mapping method, step S115 is executed to access the specific block according to the mapping method. For example, the mobile communication device accesses a map file (mapfile) in a specific block through a mapping method. Here, the operation data is, for example, an ordinary file, a database file, an attribute value or a registry. That is to say, the specific block is a block for users to access under the protection mode, so as to prevent the data in the original block from being changed.

On the other hand, when it is determined that the operation data executed in the state where the protection mode is enabled does not use the mapping method, step S120 is executed to record the operation data into the original block. Here, the operation data that does not use the mapping method is, for example, a telephone signal or a short message. That is to say, in the protected mode, the mobile communication device can still answer calls or receive short messages, and record these operating data in the original block. Therefore, after leaving the protection mode, the related data of the phone calls or short messages received in the protection mode can still be accessed.

second embodiment

FIG. 2 is a flowchart of a data access method according to a second embodiment of the present invention. In this embodiment, the storage unit of the mobile communication device includes an original block and a specific block. Wherein, the original block is used to store the operation data executed in the normal state (that is, the state in which the protection mode is disabled). The specific block is used to store operation data executed when the protection mode is enabled.

Referring to FIG. 2, in step S205, it is determined whether the protection mode is enabled. For example, a hotkey may be set on the mobile communication device by which the protected mode is enabled. Alternatively, set an option in the menu of the mobile communication device to enable the protected mode. If the protection mode is not enabled, execute step S210 to access the original block. That is, it is processed like general data.

If the protection mode is enabled, it means that the user does not want the data in the original block to be changed. At this time, step S215 is executed to first determine whether the operation data executed in the state where the protection mode is enabled adopts the mapping method. For example, an identification flag is added to the operation data not using the mapping method, and the operation data with the identification flag is determined as not using the mapping method, while the operation data without the identification flag is determined as using the mapping method.

When the mobile communication device determines that the operation data executed in the state where the protection mode is enabled does not adopt the mapping method, step S220 is performed to record the operation data into the original block. This is because, if the operation data is not mapped, the operation data may be a telephone signal or a short message. Therefore, in order to save the operation data of the telephone signal or short message after leaving the protection mode, the operation data is recorded in the original block.

In addition, when the mobile communication device determines that the operation data performed in the state where the protection mode is enabled is a mapping method, step S225 is executed to further determine that the operation performed in the state where the protection mode is enabled is a read operation or write operations. When the write operation is performed in the state where the protection mode is enabled, step S230 is executed to write the operation data into the specific block. For example, operation data can be directly written to a file of a specific block. Or, copy the corresponding file in the original block to the specific block, so as to write the operation data into the file in the specific block.

For example, if the user wants to perform a write operation on the file at the location path "/system/usr/data.txt", the file will be copied to a specific block first, and then the file in the specific block will be written. . For example, if the location path of a specific block is "/Map/...", the above files will be copied to the location path "/Map/system/usr/data.txt".

When the read operation is performed when the protection mode is enabled, step S235 is executed to determine whether there is a file corresponding to the read operation in the specific block. If there is a corresponding file in the specific block, execute step S240 to read the file from the specific area. On the contrary, if there is no corresponding file in the specific block, step S245 is executed to read the corresponding file from the original block.

For example, suppose you want to read the file with the location path "/system/usr/data.txt". At this time, determine whether the corresponding file exists in the specific block. For example, the location path of the specific block is "/Map/. ..", then determine whether there is a location path "/Map/system/usr/data.txt". If it exists, read the file at the location path "/Map/system/usr/data.txt". If it does not exist, directly read the file in the original block, that is, the file with the location path "/system/usr/data.txt".

Another example is used to illustrate that after the protection mode is activated, the mobile communication device is handed over to children at home for use. Since the operation data is written in a specific block in the state of the protection mode, even if it is modified in the protection mode The settings of the mobile communication device will not be changed to the original settings of the mobile communication device. Suppose a child executes a game program in the mobile communication device, and the game data in the protected mode will be saved in a specific block. Moreover, it can be further set to delete or retain the operation data of a specific block after leaving the protection mode.

To sum up, the present invention divides the original block and the specific block in the storage unit of the mobile communication device, when the protection mode is enabled, the specific block is accessed, and when the protection mode is not enabled, the original area is accessed piece. Therefore, when the mobile communication device is intended to be used by other users, the protection mode can be enabled to realize the protection of the original data through the protection mode, and the operation data in the protection mode state will not affect the original block operation data, so as to prevent other users from changing the original data in the mobile communication device.

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

Claims (9)

1. A data access method, applicable to a mobile communication device, said method comprising: A specific block is divided in the storage unit of the mobile communication device to store operation data executed in a state where the protection mode is enabled, and the storage unit also includes an original block to store in the protection mode The operation data executed in the disabled state, the protection mode is used to prevent the original data in the mobile communication device from being changed; judging whether the operation data executed in the state where the protection mode is enabled adopts a mapping method; When it is determined that the operation data performed in the state in which the protection mode is enabled adopts the mapping method, it is determined that the operation performed in the state in which the protection mode is enabled is a read operation or a write operation input operation; when the read operation is performed in the state where the protection mode is enabled, it is judged whether there is a file corresponding to the read operation in the specific block, if there is the file corresponding to the read operation in the specific block said file, read said file, if said file does not exist in said particular block, read said file from said original block; and When it is determined that the operation data executed in the state where the protection mode is enabled does not adopt the mapping method, recording the operation data into the original block. 2. The data access method according to claim 1, wherein when it is determined that the operation data executed in the state where the protection mode is enabled adopts the mapping method, further comprising: When the write operation is performed in the state where the protection mode is enabled, the operation data is written into the specific block. 3. The data access method according to claim 2, wherein when performing the write operation in a state where the protection mode is enabled, further comprising: copying the corresponding file in the original block to the specific block, so as to write the operation data into the file in the specific block. 4. The data access method according to claim 1, further comprising: An identification mark is added to the operation data that does not adopt the mapping method. 5. The data access method according to claim 4, wherein the step of judging whether the operation data executed in the state where the protection mode is enabled adopts the mapping method comprises: judging whether the operation data has the identification mark, so as to determine the operation data with the identification mark as not using the mapping method, and determine the operation data without the identification mark as using the mapping method The mapping method described above. 6. The data access method according to claim 1, further comprising: judging whether the protection mode is enabled; accessing the original block if the protection mode is not enabled; and If the protection mode is enabled, a step of judging whether the operation data executed in the state of the protection mode is enabled adopts the mapping method is performed. 7. The data access method according to claim 1, further comprising: After the protection mode is disabled, the operation data of the specific block is deleted. 8. The data access method according to claim 1, wherein the operation data using the mapping method is one of ordinary files, database files, attribute values and registry. 9. The data access method according to claim 1, wherein the operation data not using the mapping method is a telephone signal or a short message.