JP2012226619A - Portable terminal device, storage control method, and storage control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device, a storage control method, and a storage control program that can update a predetermined program even when difference data of the predetermined program is larger than the size of a predetermined storage area.SOLUTION: A portable terminal device 1 includes a radio communication part 30, a first memory 51 provided with the predetermined storage area for storing the difference data used to update the predetermined program, a second memory 52 larger than the predetermined storage area, and a control part 60 which contrasts the size of the difference data with the size of the predetermined storage area when receiving the difference data of the predetermined program by the radio communication part 30, and stores the difference data in the first memory 51 when the size of the difference data is smaller than the size of the predetermined storage area or in the second storage memory 52 when the size of the difference data is larger than the size of the predetermined storage area.

Description

  The present invention relates to a portable terminal device that updates a program, a storage control method, and a storage control program.

  In recent years, portable terminal devices having an OTA (Over The Air) function for receiving data wirelessly have been proposed. For example, when the old version firmware is updated to the new version firmware, the OTA function receives the difference data between the old version firmware and the new version firmware, and combines the old version firmware and the difference data. A method for updating is proposed (see, for example, Patent Document 1).

Special table 2009-536396

  By the way, in the method described in Patent Document 1, the received difference data is stored in a non-volatile memory in which an old version of firmware is stored, and the difference data and the old version of firmware are expanded in a RAM. And update.

  Therefore, in the method described in Patent Document 1, when the difference data has a size larger than the storage area of the nonvolatile memory predetermined for the difference data, the received difference data is stored in the nonvolatile memory. I can't update it.

  The present invention provides a portable terminal device, a storage control method, and a storage control program capable of updating a predetermined program even when the difference data of the predetermined program is larger than a predetermined storage area. For the purpose.

  The mobile terminal device according to the present invention includes a wireless communication unit, a first memory in which a predetermined storage area for storing difference data used in updating a predetermined program is provided in advance, and the predetermined storage area When the difference data of the predetermined program is received by the large second memory and the wireless communication unit, the size of the difference data is compared with the size of the predetermined storage area, and the size of the difference data is The difference data is stored in the first memory when the size is smaller than the size of the storage area, and the difference data is stored in the second memory when the size of the difference data is larger than the size of the predetermined storage area. And a control unit to be stored.

In the mobile terminal device according to the present invention, the first memory is a nonvolatile memory,
The second memory is preferably a volatile memory.

  Moreover, in the portable terminal device according to the present invention, when the control unit stores the difference data in the second memory, the portable terminal device retains the difference data stored in the second memory. It is preferable to update the predetermined program when the restart is completed.

  In the mobile terminal device according to the present invention, the control unit may update the second difference data when executing the update of the predetermined program based on the difference data stored in the second memory. It is preferable to rearrange in the memory.

  In the mobile terminal device according to the present invention, the control unit causes the first memory to store an address of the difference data rearranged in the second memory, and the difference stored in the second memory. A memory in the second memory in which the difference data is stored with reference to an address of the difference data stored in the first memory when the predetermined program is updated based on the data It is preferable to specify the region.

  In the mobile terminal device according to the present invention, the control unit refers to the address of the difference data when the difference data is rearranged in the second memory, and includes the storage area of the second memory. It is preferable to initialize a storage area in which the difference data and data related to the difference data are not stored.

  In the mobile terminal device according to the present invention, the control unit may convert the difference data and the predetermined program to the difference data and the difference data in the second memory when the predetermined program is updated. It is preferable to expand to a storage area in which related data is not stored.

  The storage control method according to the present invention is a storage control method in which a mobile terminal device controls storage of difference data used in updating a predetermined program, the mobile terminal device including a wireless communication unit, A first memory in which a predetermined storage area for storing difference data is provided in advance, and a second memory larger than the predetermined storage area, wherein the storage control method stores the difference data by the wireless communication unit. When receiving, in the step of comparing the size of the difference data and the size of the predetermined storage area, and the step of comparing, the size of the difference data is smaller than the size of the predetermined storage area The difference data is stored in the first memory, and the difference data is stored when the size of the difference data is larger than the size of the predetermined storage area. Comprising a step of storing the serial second memory.

  A storage control program according to the present invention is a storage control program for causing a mobile terminal device to execute storage control of difference data used when a predetermined program is updated, and the mobile terminal device includes: a wireless communication unit; A first memory in which a predetermined storage area for storing the difference data is provided in advance, and a second memory larger than the predetermined storage area, and the storage control program is configured to store the difference by the wireless communication unit. When receiving data, the size of the difference data is smaller than the size of the predetermined storage area in the process of comparing the size of the difference data with the size of the predetermined storage area and the process of comparing In the case where the difference data is stored in the first memory and the size of the difference data is larger than the size of the predetermined storage area. Wherein a process of the difference data is stored in the second memory, a is executed by the portable terminal device.

  According to the present invention, a predetermined program can be updated even when the difference data of the predetermined program is larger in size than the storage area of the predetermined storage area.

1 is an external perspective view of a mobile phone according to an embodiment. It is a functional block diagram which shows the function of the mobile telephone which concerns on this embodiment. It is a figure which shows the condition of the 2nd memory 52 in the case of rearranging the difference data which concern on this embodiment. It is a flowchart which shows an example of the flow of a process which memorize | stores difference data with the mobile telephone which concerns on this embodiment. It is a flowchart following FIG.

  Embodiments of the present invention will be described below. First, a basic structure of a mobile phone 1 according to an embodiment of the mobile terminal device of the present invention will be described with reference to FIG. FIG. 1 is an external perspective view of a mobile phone 1 according to the present embodiment.

  FIG. 1 shows a so-called foldable mobile phone, but the mobile phone according to the present invention is not limited to this. For example, a rotary type (turn type) in which one casing is slid in one direction from a state where both casings are overlapped, an operation unit and a display unit are arranged in one casing, It may be a type that does not have (straight type).

The mobile phone 1 includes an operation unit side body unit 2 and a display unit side body unit 3.
The operation unit side body unit 2 is configured to include, on the surface unit 10, an operation unit 11 and a microphone 12 to which a voice uttered by a user of the mobile phone 1 is input. The operation unit 11 includes a function setting operation key 13 for operating various functions such as various settings, a telephone function, and an e-mail function, an input operation key 14 for inputting a telephone number, characters, and the like, The operation key 15 includes a determination operation key 15 for performing various operations and scrolling.
In addition, the display unit side body unit 3 includes an LCD (Liquid Crystal Display) display unit 21 for displaying various types of information on the surface unit 20 and a speaker 22 that outputs the voice of the other party of the call. Has been.

  Further, the upper end of the operation unit side body 2 and the lower end of the display unit side body 3 are connected via a hinge mechanism 4. In addition, the cellular phone 1 relatively rotates the operation unit side body 2 and the display unit side body 3 connected via the hinge mechanism 4, thereby displaying the operation unit side body 2 and the display. The part-side casing 3 can be opened to each other (opened state), or the operation part-side casing 2 and the display-side casing 3 can be folded (folded state).

FIG. 2 is a functional block diagram showing functions of the mobile phone 1 according to the present embodiment.
As shown in FIG. 2, the mobile phone 1 includes an operation unit 11, a microphone 12, a wireless communication unit 30, an LCD control unit 41, an audio processing unit 42, a memory 50, and a control unit 60. It is provided in the side housing part 2. In addition, the mobile phone 1 includes an LCD display unit 21, a speaker 22, and an LCD driver 23 in the display unit side body unit 3.

  The wireless communication unit 30 transmits and receives signals to and from an external device such as a base station (not shown). The wireless communication unit 30 includes a main antenna 31 as an antenna and an RF circuit unit 32.

The main antenna 31 transmits / receives a high frequency signal modulated by a predetermined modulation method to / from an external device such as a base station.
The RF circuit unit 32 processes a high-frequency signal transmitted and received by the main antenna 31. Specifically, the RF circuit unit 32 demodulates the signal received by the main antenna 31 using a predetermined demodulation method, and supplies the processed signal to the control unit 60. In addition, the RF circuit unit 32 modulates the signal supplied from the control unit 60 with a predetermined modulation method, and transmits the modulated signal to an external device such as a base station via the main antenna 31.

  The LCD control unit 41 performs predetermined image processing under the control of the control unit 60, and outputs the processed image data to the LCD driver 23. The LCD driver 23 includes a frame memory, and stores the image data supplied from the LCD control unit 41 in the frame memory. Then, the LCD driver 23 outputs the image data stored in the frame memory to the LCD display unit 21 or the sub LCD display unit (not shown) at a predetermined timing.

  The sound processing unit 42 performs predetermined sound processing under the control of the control unit 60 and outputs the processed signal to the speaker 22. The speaker 22 outputs the signal supplied from the sound processing unit 42 to the outside. The audio processing unit 42 processes the signal input from the microphone 12 and outputs the processed signal to the control unit 60.

  The memory 50 includes, for example, a first memory 51 and a second memory 52, and is used for arithmetic processing by the control unit 60.

  The first memory 51 is, for example, a non-volatile memory such as a flash memory, stores a predetermined program for executing the function of the mobile phone 1, and stores difference data used when the predetermined program is updated. A predetermined storage area for storing is provided in advance. The first memory 51 stores an update flag for determining whether or not to update based on difference data of a predetermined program, and is updated by the control unit 60 when the update flag is ON. Is executed.

  The second memory 52 is a volatile memory such as SDRAM (Synchronous DRAM), for example, and has a function as a working memory used for arithmetic processing by the control unit 60. The second memory 52 has a storage capacity larger than a predetermined storage area.

  The control unit 60 controls the entire mobile phone 1 and performs predetermined control on the wireless communication unit 30, the LCD control unit 41, the voice processing unit 42, and the like, for example. In addition, the control unit 60 receives input from the operation unit 11 or the like and executes various processes. Then, the control unit 60 controls the memory 50 to execute reading of various programs and data and writing of data when executing processing.

  In the mobile phone 1 configured as described above, when the predetermined program is updated by the control unit 60, the storage control of the difference data of the predetermined program is performed. Hereinafter, the control unit 60 will be described in detail.

  When the update flag stored in the first memory 51 is OFF, the control unit 60 receives the difference data of the predetermined program by the wireless communication unit 30 and determines the size of the difference data and the predetermined value of the first memory 51. Contrast with the storage capacity (size) of the storage area. Subsequently, when the size of the difference data is smaller than the storage capacity of a predetermined storage area of the first memory 51, the control unit 60 stores the difference data in the first memory 51. Further, when the size of the difference data is larger than the storage capacity of the predetermined storage area of the first memory 51, the control unit 60 stores the difference data in the second memory 52. When the difference data is stored in the first memory 51 or the second memory 52, the control unit 60 stores the address of the storage area in which the difference data is stored in the first memory 51.

  Subsequently, in response to the difference data being stored in the first memory 51 or the second memory 52, the control unit 60 restarts the mobile phone 1 so that the predetermined program is not executed. Specifically, when the difference data is stored in the second memory 52, the control unit 60 supplies power to the second memory 52 and carries the difference data stored in the second memory 52. The telephone 1 is restarted. In addition, the control unit 60 turns on the update flag of the first memory 51.

  Subsequently, the control unit 60 updates a predetermined program when the restart is completed. That is, the control unit 60 updates a predetermined program based on the fact that the update flag stored in the first memory 51 is ON.

  Specifically, the control unit 60 refers to the address of the difference data stored in the first memory 51 when the update flag stored in the first memory 51 is ON after the restart is completed. Whether or not the difference data is stored in the second memory 52 is determined.

  When the difference data is stored in the first memory 51, the control unit 60 initializes the storage area of the second memory 52.

  When the difference data is stored in the second memory 52, the control unit 60 stores the difference data in the second memory when executing the update of the predetermined program based on the difference data stored in the second memory 52. The memory 52 is rearranged.

  FIG. 3 is a diagram illustrating a state of the second memory 52 when the difference data according to the present embodiment is rearranged. Specifically, FIG. 3A is a diagram illustrating a situation of the second memory 52 before the difference data is rearranged, and FIG. 3B is a diagram where the difference data is rearranged and initialized. It is a figure which shows the condition of the 2nd memory 52 after.

  The control unit 60 refers to the address of the difference data stored in the first memory 51, and specifies the address of the storage area in the second memory 52 where the difference data is stored (address X shown in FIG. 3). At the same time, an empty area of the second memory 52 is specified. Here, the empty area includes data that is not used for updating (data A, B, and C shown in FIG. 3A). Subsequently, based on the address of the difference data read from the first memory 51, the control unit 60 rearranges the difference data in order from the last data in the empty area. Here, the rearrangement of the difference data is performed in order from the end of the storage area corresponding to the data C shown in FIG. Subsequently, the control unit 60 causes the first memory 51 to store the address of the storage area in which the difference data rearranged in the second memory 52 is stored. When the difference data is rearranged, the control unit 60 stores the program (OTA program and OTA program stack) used in the OTA update in the second memory 52 as shown in FIG. Let In this way, the OTA program and the OTA program stack are stored in the second memory 52, and the difference data is rearranged.

  Subsequently, when the difference data is rearranged in the second memory 52, the control unit 60 performs the second memory 52 based on the address of the storage area in which the difference data rearranged in the second memory 52 is stored. Storage areas in which the difference data and the data related to the difference data (the OTA program and the OTA program stack) are not stored (part of the data A, B, and C shown in FIG. 3A) The corresponding storage area is initialized. As a result, the initialized storage area can be used as a work memory in the update.

  Subsequently, the control unit 60 performs an error detection process on the difference data stored in the first memory 51 or the second memory 52 when a predetermined program is updated. Subsequently, when an error in the difference data is not detected, the control unit 60 expands a predetermined program stored in the first memory 51 in the second memory 52 in order to perform an update in the second memory 52. To do.

  In addition, the control unit 60 expands the difference data stored in the first memory 51 or the second memory 52 in the second memory 52. The control unit 60 refers to the address of the difference data stored in the first memory 51 when executing update of a predetermined program on the basis of the difference data stored in the second memory 52. Is stored in the second memory 52. As a result, the difference data in the second memory 52 can be expanded in the work memory in the second memory 52 together with the OTA program.

  4 and 5 are flowcharts illustrating an example of a flow of processing for storing difference data by the mobile phone 1 according to the present embodiment.

  In step S <b> 1, the control unit 60 determines whether or not the update flag stored in the first memory 51 is OFF. When this determination is YES, the control unit 60 proceeds to step S2, and when this determination is NO, the control unit 60 proceeds to step S9 in FIG.

  In step S <b> 2, the control unit 60 determines whether or not the wireless communication unit 30 receives difference data of a predetermined program from an external device. If it is determined that the determination is YES, the control unit 60 moves the process to step S3, and if this determination is NO, the control unit 60 ends this flowchart.

  In step S <b> 3, the control unit 60 specifies the size of the difference data to be received, and compares the size of the difference data with the storage capacity of the predetermined storage area of the first memory 51. Then, the control unit 60 determines whether or not the size of the difference data is larger than the storage capacity of the predetermined storage area of the first memory 51. When this determination is YES, the control unit 60 moves the process to step S4, and when this determination is NO, the control unit 60 moves the process to step S6.

In step S <b> 4, the control unit 60 stores the difference data received by the wireless communication unit 30 in the second memory 52. That is, the control unit 60 stores the difference data in the second memory 52 when the size of the difference data is larger than the storage capacity of the predetermined storage area of the first memory 51. In addition, the control unit 60 stores in the first memory 51 that the difference data is stored in the second memory 52.
In step S <b> 5, the control unit 60 stores the address of the storage area of the second memory 52 corresponding to the difference data in the first memory 51. When this process ends, the control unit 60 moves the process to step S7.

  In step S <b> 6, the control unit 60 stores the difference data received by the wireless communication unit 30 in the first memory 51. That is, the control unit 60 stores the difference data in the first memory 51 when the size of the difference data is smaller than the storage capacity of the predetermined storage area of the first memory 51. In addition, the control unit 60 stores in the first memory 51 that the difference data is stored in the first memory 51. When this process ends, the control unit 60 moves the process to step S7.

In step S7, the control unit 60 sets the update flag stored in the first memory 51 to ON.
In step S8, the control unit 60 restarts the mobile phone 1. When this process ends, the control unit 60 moves the process to step S1.

  The description will be shifted to FIG. In step S <b> 9, the control unit 60 determines whether difference data is stored in the second memory 52. When this determination is YES, the control unit 60 moves the process to step S10, and when this determination is NO, the control unit 60 moves the process to step S12.

In step S <b> 10, the control unit 60 rearranges the difference data stored in the second memory 52.
In step S <b> 11, the control unit 60 initializes a storage area in the second memory 52 other than the area in which the difference data and the related data of the difference data are stored. Here, the related data with the difference data is a program for executing OTA (OTA program) and a stack of the program (OTA stack). When this process ends, the controller 60 moves the process to step S13.
In step S <b> 12, the control unit 60 initializes the storage area of the second memory 52. When this process ends, the controller 60 moves the process to step S13.

  In step S13, the control unit 60 performs an error detection process on the difference data stored in the first memory 51 or the second memory 52, and determines whether or not there is an error in the difference data. When this determination is YES, the control unit 60 proceeds to step S15, and when this determination is NO, the control unit 60 proceeds to step S14.

  In step S14, the control unit 60 determines that there is no error in the difference data and is normal, and executes the update. When the control unit 60 executes the update, the control program 60 stores the predetermined program stored in the first memory 51 in the storage area of the second memory 52 and stores the difference data and the related data of the difference data. The difference data stored in the first memory 51 or the second memory 52 is expanded in the second memory 52. When this process ends, the controller 60 moves the process to step S16.

In step S <b> 15, the control unit 60 displays an error on the LCD display unit 21 of the mobile phone 1. When this process ends, the controller 60 moves the process to step S16.
In step S <b> 16, after the update is completed, the control unit 60 sets the update flag stored in the first memory 51 to OFF.
In step S <b> 17, the control unit 60 restarts the mobile phone 1. When this process ends, the control unit 60 moves the process to step S1.

As described above, according to the present embodiment, when the size of the difference data is smaller than the storage capacity (size) of the predetermined storage area of the first memory 51 by the control unit 60, the mobile phone 1 stores the difference data in the first When the difference data size is larger than the storage capacity of a predetermined storage area of the first memory 51, the difference data is stored in the second memory 52.
Therefore, even when the difference data of the predetermined program is larger than the predetermined storage area, the mobile phone 1 updates the predetermined program using the difference data stored in the second memory 52. be able to.

In the mobile phone 1, the first memory 51 is a non-volatile memory, and the second memory 52 is a volatile memory.
Therefore, when the storage capacity of the first memory 51 that is a non-volatile memory is insufficient, the mobile phone 1 stores the difference data necessary for updating a predetermined program using the second memory 52 that is a volatile memory. can do.

In addition, when the control unit 60 stores the difference data in the second memory 52, the mobile phone 1 restarts the mobile phone 1 while retaining the difference data stored in the second memory 52, When the restart is completed, a predetermined program is updated.
Therefore, in the cellular phone 1, in response to the difference data being stored in the first memory 51 or the second memory 52, it is possible to update the predetermined program as the predetermined program is not executed. it can.

Further, the mobile phone 1 causes the control unit 60 to rearrange the difference data in the second memory 52 when executing a predetermined program update based on the difference data stored in the second memory 52.
Therefore, the mobile phone 1 can secure the storable area in the second memory 52 by rearranging the difference data in the second memory 52 to arrange the difference data at an optimal position.

In addition, the mobile phone 1 stores the address of the difference data rearranged in the second memory 52 by the control unit 60 in the first memory 51, and performs predetermined processing based on the difference data stored in the second memory 52. When executing the program update, the storage area in the second memory 52 in which the difference data is stored is specified by referring to the address of the difference data stored in the first memory 51.
Therefore, even when the mobile phone 1 is restarted, the address of the difference data rearranged in the second memory 52 can be specified with reference to the first memory 51.

In addition, when the control unit 60 rearranges the difference data in the second memory 52, the mobile phone 1 refers to the address of the difference data and refers to the difference data and the difference data in the storage area of the second memory 52. A storage area in which no data related to is stored is initialized.
Therefore, the mobile phone 1 can delete unnecessary data from the data temporarily stored in the second memory 52 and increase the storage area necessary for updating a predetermined program.

  In addition, when the predetermined program is updated, the mobile phone 1 expands the difference data and the predetermined program in the storage area of the second memory 52 and other than the data related to the difference data and the difference data. Therefore, it is possible to prevent the difference data and the data related to the difference data from being erased.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

  In addition, the present invention is not limited to the mobile phone 1 according to the present embodiment. The mobile phone 1 executes various functions according to the present invention, and causes the mobile phone 1 to execute various functions according to the present invention. The present invention can also be applied to a program and a storage medium storing the program. The present invention is also applicable to various portable terminal devices such as a personal digital assistant (PDA) and a personal computer having a wireless communication function.

  In the present embodiment, the error detection process for the difference data is performed immediately before the update is executed. However, the present invention is not limited to this, and the error detection process is performed when the difference data is received, or the difference data is stored in the first memory 51. Alternatively, error detection processing may be performed when stored in the second memory 52.

DESCRIPTION OF SYMBOLS 1 Cellular phone 30 Wireless communication part 51 1st memory 52 2nd memory 60 Control part

Claims (9)

A wireless communication unit;
A first memory provided in advance with a predetermined storage area for storing difference data used in updating a predetermined program;
A second memory larger than the predetermined storage area;
When the difference data of the predetermined program is received by the wireless communication unit, the size of the difference data is compared with the size of the predetermined storage area, and the size of the difference data becomes the size of the predetermined storage area. A controller that stores the difference data in the first memory when the difference data is smaller than the first memory and stores the difference data in the second memory when the size of the difference data is larger than the size of the predetermined storage area; ,
A mobile terminal device comprising: The first memory is a non-volatile memory;
The second memory is a volatile memory;
The mobile terminal device according to claim 1. When the difference data is stored in the second memory, the control unit restarts the portable terminal device while retaining the difference data stored in the second memory, and the restart is completed. When updating the predetermined program,
The portable terminal device according to claim 1 or 2. The control unit rearranges the difference data in the second memory when executing the update of the predetermined program based on the difference data stored in the second memory.
The mobile terminal device according to claim 3. The control unit stores the address of the difference data rearranged in the second memory in the first memory, and updates the predetermined program based on the difference data stored in the second memory. When executing, the storage area in the second memory in which the difference data is stored is specified by referring to the address of the difference data stored in the first memory.
The mobile terminal device according to claim 4. The control unit refers to the address of the difference data when the difference data is rearranged in the second memory, and the difference data and data related to the difference data in the storage area of the second memory Initialize the storage area where is not stored,
The mobile terminal device according to claim 5. When the predetermined program is updated, the control unit puts the difference data and the predetermined program in a storage area in which the difference data of the second memory and data related to the difference data are not stored. expand,
The mobile terminal device according to claim 6. A mobile terminal device is a storage control method for controlling the storage of difference data used in updating a predetermined program,
The portable terminal device
A wireless communication unit;
A first memory provided in advance with a predetermined storage area for storing the difference data;
A second memory larger than the predetermined storage area,
The storage control method includes:
A step of comparing the size of the difference data and the size of the predetermined storage area when receiving the difference data by the wireless communication unit;
In the comparing step, when the size of the difference data is smaller than the size of the predetermined storage area, the difference data is stored in the first memory, and the size of the difference data is the size of the predetermined storage area. Storing the difference data in the second memory when larger than
A storage control method. A storage control program for causing a portable terminal device to execute storage control of difference data used in updating a predetermined program,
The portable terminal device
A wireless communication unit;
A first memory provided in advance with a predetermined storage area for storing the difference data;
A second memory larger than the predetermined storage area,
The storage control program is
When the difference data is received by the wireless communication unit, a process of comparing the size of the difference data with the size of the predetermined storage area;
In the comparison process, when the size of the difference data is smaller than the size of the predetermined storage area, the difference data is stored in the first memory, and the size of the difference data is the size of the predetermined storage area. A process of storing the difference data in the second memory when it is larger than
A storage control program for causing the portable terminal device to execute

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