JP3539276B2 - Portable information terminal device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable information terminal device as a portable information terminal device, and more particularly to a portable information terminal device suitable for receiving a large amount of data.
[0002]
[Prior art]
A normal telephone device permanently installed in an office or the like has enabled general data communication not only for original voice communication but also using a conversion means such as a coupler. A portable telephone device is a device for carrying a telephone, but has been strengthened as a communication terminal from its initial stage because of its convenience as a portable terminal and technical commonality with a pager. Recently, with the development of communication technology, it has become possible not only to transmit text information but also to transmit and receive still image and moving image information.
[0003]
Therefore, Japanese Patent Application Laid-Open No. 9-152922 proposes that an expansion card is connected to an expansion card slot of a portable information terminal device to utilize the function as a communication terminal for other devices.
[0004]
FIG. 8 shows an outline of the configuration of the proposed portable information terminal device using an expansion card. An expansion card 203 is attached to a telephone device 201 as a portable information terminal device via an interface cable 202. The expansion card 203 includes a telephone interface 205 connected to the interface cable 202 and a computer interface 206 connected to the personal computer with the expansion card 203 inserted into a slot of a notebook personal computer (not shown). It has different types of interface circuits. The control unit 207 for controlling the entire expansion card 203 includes a memory 208 and a modem 209 connected to the control unit 207.
[0005]
The expansion card 203 having such a configuration adds a function as a modem 209 to a notebook type personal computer, and enables the telephone device 201 to transmit and receive data as a terminal having a transmitting and receiving function. It is possible to store it temporarily. That is, in the proposed device, the expansion of the communication function and the expansion of the memory are realized by the expansion card 203, and the memory 208 is provided with a buffer for the case where data transfer between the telephone device 201 and the notebook personal computer is not successful. It has a function as a memory.
[0006]
By the way, when the range of information handled by the portable information terminal device changes from only voice data to data including text data and image data, a large amount of data is transferred to the portable telephone in conjunction with the improvement of communication speed. It is being transmitted from portable information terminals such as devices, and received by portable information terminals. Along with this, the capacity of a memory built in the portable information terminal device has also increased significantly. However, changes in the amount and quality of transmitted / received data have caused a situation that cannot be solved by simply increasing the internal memory. Of course, the memory 208 in the expansion card 203 shown in FIG. 8 is a buffer memory for temporarily storing data to be transferred between devices, and does not solve this problem.
[0007]
Japanese Patent Laid-Open Publication No. Hei 6-244986 proposes to use an electronic organizer to solve the shortage of storage capacity of the portable information terminal device.
[0008]
FIG. 9 shows a state in which the portable information terminal device is connected to an electronic organizer. In this proposal, a portable information terminal device 221 connects an electronic organizer 223 via an information transmission path 222 such as a cable. In the portable information terminal device 221, a ROM (Read Only Memory) 224 storing a program, a CPU (Central Processing Unit) 225 for executing the program stored in the ROM 224, A RAM (random access memory) 226 for storing data for use is provided, and the information transmission path 222 and the CPU 225 are connected via an input / output circuit (I / O) 227.
[0009]
According to this proposal, when the storage area of the RAM 226 is reduced due to data received from the antenna 228, data such as a telephone number is transferred to a storage area (not shown) of the electronic organizer 223, and the insufficient storage area is transferred. I try to make up for it. In this proposal, conversely, data such as the telephone number of the electronic organizer 223 can be stored in the RAM 226 in the portable information terminal device 221. That is, in this proposal, two independent devices that can be connected to each other use their built-in memories in common, so that if one storage area becomes insufficient, the other compensates for it.
[0010]
[Problems to be solved by the invention]
As described above, in the portable information terminal device 221 shown in FIG. 9, devices having independent functions accommodate the built-in memory. Therefore, the capacity of the versatile memory is naturally limited. Therefore, when receiving a large amount of data, there is a problem that connecting these devices is often useless. In addition, the expansion card shown in FIG. 8 has a function as a buffer memory, and is a memory for data that is temporarily stored during communication, and may not be able to store a large amount of data. Even if a large amount of data can be stored, even if a large amount of data can be stored, there is a problem that the original function as a buffer memory cannot be exhibited in that case.
[0011]
Further, in such a conventional portable information terminal device, it is necessary to always carry another information device such as a notebook personal computer or an electronic organizer, and the convenience, compactness, and lightness of the portable information terminal device are reduced. The benefits were greatly reduced.
[0012]
Further, in such a conventionally proposed portable information terminal device, data is stored in another device as an emergency only, or used for purposes other than the original purpose of the other device such as a buffer memory. Will do. Therefore, the usability of the memory as the extension part is not good, and there is a risk that important data may be accidentally overwritten. In addition, when important data is stored in the buffer memory, if the data is mistaken one step, the data may be overwritten with other data at the time of the next communication or the like, and the danger of erasing the stored data may be lost. There was a problem that the nature was large.
[0013]
Therefore, an object of the present invention is to provide a portable information terminal device that can easily and efficiently increase the memory capacity and does not impair portability.
[0014]
[Means for Solving the Problems]
According to the first aspect of the present invention, (a) data receiving means for receiving data; (b) a first memory prepared for storing data received by the data receiving means; An interface circuit for detachably connecting a second memory for storing data stored in one memory as required, and (d) a state in which the second memory is connected to the interface circuit. Transfer data transfer input between the first memory and the second memory and transfer data instruction input means for indicating a transfer destination; and (e) the first memory in a state where the second memory is connected to the interface circuit. Free capacity calculating means for calculating the free capacity of the memory to be transferred among the second memory and the second memory;When it is calculated that the free space of the transfer destination memory of the first memory and the second memory is equal to or larger than the amount of transfer data, and when a transfer data instruction is input from the transfer data instruction input means ,The portable information terminal device is provided with data transfer execution means for transferring from the transfer source all of the transfer data specified by the transfer data instruction input means.
[0015]
That is, in the first aspect of the present invention,The information terminal device is provided with an interface circuit for detachably connecting the second memory, so that the second memory can be detachably connected as necessary, and thereby the memory capacity of the device can be increased. Can be increased. In addition, the transfer data instruction input means can indicate the transfer destination between the first memory and the second memory, and the free space calculation means can determine the transfer destination memory of the first memory and the second memory. When the data transfer execution means transfers data between these memories, the data transfer can be performed with the free space as a limit, and the amount of stored data can be reduced. Safety can be improved.
[0016]
According to the second aspect of the present invention, there is provided a second memory for transferring and storing data between a first memory prepared for storing data and a second memory as needed. An interface circuit for detachably connecting the second memory; and (c) transfer data to be transferred between the first memory and the second memory while the second memory is connected to the interface circuit. Transfer data command input means for designating the transfer destination; (d) storage memory designating means for designating a memory for storing transfer data among the first and second memories; A free capacity calculating means for calculating the free capacity of the transfer destination memory of the first memory and the second memory in a state in which the memory is connected; and (f) a transfer destination calculated by the free capacity calculating means. Of memory Capacity comparison means for comparing the transfer capacity specified by the transfer data command input means with the transfer capacity, and (g) when the capacity comparison means determines that the free space in the transfer destination memory is smaller, Determines whether the destination memory can be overwritten during transfer.Overwriting permission / inhibition input means to be input,(H)When there is an input to reject overwriting by this overwriting permission / inhibition input meansStop data transfer and allow overwritingThere was inputThe portable information terminal device is provided with transfer processing control means for executing transfer of transfer data when the capacity comparison means does not determine that the free space in the memory at the transfer destination is smaller.
[0017]
In other words, according to the second aspect of the present invention, in addition to the technical configuration of the first aspect, whether or not overwriting is possibleinputSince the means is provided, overwriting can be performed as needed, and the amount of data to be transferred can be increased as needed.
[0018]
According to the third aspect of the present invention, (a) data receiving means for receiving data, (b) a first memory prepared for storing data received by the data receiving means, and (c) 1 memoryTransfer and store data as needed between andAn interface circuit for detachably connecting the second memory; and (d) a state in which the second memory is connected to the interface circuit.When storing the data received by the data receiving means in the second memory, the pre-reception free space calculating means for calculating the free capacity of the first memory, and (e) the free space calculating means for calculating the free space before receiving. A pre-reception data transfer unit for transferring data already stored in the second memory to the first memory within a maximum range of the free space of the first memory; A second memory data storing means for storing data received by the data receiving means in the second memory after the transfer, and (g) all data received by the data receiving means are stored by the second memory data storing means. When received, the post-reception free space calculation means for calculating the free space of the second memory after the storage, and (h) the free space after the reception within the maximum range of the free space calculated by the free space calculation means. A data return means for returning data transferred from the second memory to the second memory in the second memory, and (ii) storing all data received by the data receiving means by the second memory data storage means. A data erasing means for erasing all data received by the data receiving means and stored in the second memory when the free space of the second memory has been exhausted, and (nu) erasing of data by the data erasing means. Storage failure data return means for returning data transferred from the second memory to the first memory after the storageAre provided in the portable information terminal device.
[0019]
That is, in the invention described in claim 3,Since the data received by the data receiving means is stored in the second memory detachably connected by the interface circuit, even if the capacity of the first memory is insufficient, the connection of the second memory allows the data to be stored. The possibility of reception can be increased. In addition, when other data is already stored in the connected second memory, these data in the second memory are transferred to the first memory within the maximum free space of the first memory. , The data can be received in a state where the free space of the second memory is maximized, and the second memory isA situation in which reception becomes impossible due to insufficient capacity can be avoided to the utmost.
[0020]
According to a fourth aspect of the present invention, there is provided the portable information terminal device according to the third aspect.Then, the data return means at the time of successful storage selects the data transferred by the pre-reception data transfer means in descending order of preset priority data within the maximum range of the free area as a limit and transfers the data to the second memory.It is characterized by:
[0021]
That is, in the invention described in claim 4,When the data transferred by the pre-reception data transfer means is restored to the original data in accordance with the priority order with the free space as a limit, the data is returned according to the priority order. Since the free space has been reduced due to the reception of data, it may happen that all the data saved to other memory cannot be restored. In this case, the restored data is processed according to the priority. . As a result, it is possible to arrange the memory for the data that is important to be stored in the first memory as much as possible at the maximum, and the data may be scattered by repeating the data receiving operation. Can be avoided.
[0022]
According to a fifth aspect of the present invention, there is provided a portable information terminal device according to the fourth aspect.The priority is set higher so that data with higher importance is left in the first memory.It is characterized by:
[0023]
That is, in the invention described in claim 5,Importance is a priority criterion. It is free to set priorities from other viewpoints.
[0024]
In the invention according to claim 6,Claim 1 or Claim 2Portable information terminal device as describedIsA display means for displaying the free space calculated by the free space calculation means is provided.
[0025]
That is, in the invention according to claim 6, the free space calculated by the free space calculating means is displayed on the display means.memoryIt is possible to select the data to be transferred while considering the free space of the data, and to determine which memory should receive the data.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
[0027]
【Example】
Hereinafter, the present invention will be described in detail with reference to examples.
[0028]
FIG. 1 shows a configuration of a portable information terminal device according to an embodiment of the present invention. The portable information terminal device 10 includes a wireless transmission / reception unit 12 having an antenna 11. The wireless transmission / reception unit 12 is a unit that transmits / receives voice or data to / from another communication device (not shown) via the antenna 11. The wireless transmission / reception unit 12 is connected to the baseband processing unit 13 and the control unit 14. The baseband processing unit 13 is a circuit part for processing audio data, and connects the receiver 15 and the transmitter 16.
[0029]
The control unit 14 is a circuit part that performs overall control of the portable information terminal device 10, and is stored in an internal memory (not shown) using a CPU (Central Processing Unit) not shown in the figure. Various controls are performed by executing the program. The control unit 14 is connected to the memory 17, the memory expansion interface 18, the key input unit 19, the sounder 21, and the display unit 22. Here, the memory 17 is a memory element for storing a telephone number and received data. The memory expansion interface 18 is an interface for expanding the capacity of the memory 17, and a recording medium 23 such as a memory card can be detachably connected to the outside.
[0030]
The key input unit 19 includes keys (not shown) for inputting dial information, character information, and the like, and an input circuit unit for inputting a signal generated by pressing these keys to the control unit 14. . The sounder 21 is a circuit component that outputs a sound such as a dial tone through a speaker (not shown). The display unit 22 is a display for displaying characters and bitmap images, and usually uses a monochrome or color liquid crystal display. A power supply unit 25 for supplying power to each unit is also arranged in the portable information terminal device 10.
[0031]
FIG. 2 shows a part of a functional circuit that realizes a data transfer function in the control unit. The control unit 14 includes the CPU 31 as described above, and realizes various functional circuits by executing a program. Such a circuit function unit includes a reception data capacity monitoring unit 32 for calculating the capacity of the reception data, a built-in memory capacity monitoring unit 33 for monitoring the free space of the built-in memory 17 shown in FIG. Three monitoring units of the external memory capacity monitoring unit 34 for monitoring the capacity of the storage unit and the free space for each configuration area, a comparison unit 35 for inputting information from these monitoring units and performing a comparison operation, There is a transfer direction designating unit 38 for designating the data transfer direction based on the key information 36 input from the key input unit 19 (FIG. 1).
[0032]
The comparing unit 35 outputs a control signal 41 for instructing the CPU 31 to start or stop data transfer according to the comparison result, and also outputs the data capacity of the data transfer source and the free space of the memory 17 or the recording medium 23 as the transfer destination. A display control signal 42 indicating a capacity or the like is output to the display unit 22 shown in FIG. The display control signal 42 also includes a warning signal for issuing a warning when the data capacity of the transfer source is larger than the free space of the transfer destination, and such a warning is also displayed on the display unit 22.
[0033]
By the way, in the portable information terminal device 10 of the present embodiment, not only voice but also data is transmitted and received by using the wireless transmitting and receiving unit 12. As data, not only character data but also image data can be received. For this reason, when the capacity of the received data is large, it may be impossible to receive new data unless the data already stored in the memory 17 is partially deleted.
[0034]
Therefore, the portable information terminal device 10 of the present embodiment is configured such that the recording medium 23 such as a memory card can be connected to the device main body by the memory expansion interface 18 as needed. When the free space in the built-in memory 17 is low, the received data can be directly stored on the recording medium 23 side.
[0035]
FIG. 3 shows a flow of processing when a recording medium is designated as a receiving destination. When the portable information terminal device 10 is set to the mode for receiving data (step S51: Y), the control unit 14 checks whether or not the recording medium 23 is connected via the memory expansion interface 18 (step S51). S52). Then, when the recording medium 23 is connected, a display for prompting the operator to select whether to receive the data from the memory 17 or the recording medium 23 is displayed on the display unit 22 (step S53). On the other hand, when the operator selects the receiving destination (step S54: Y), the comparing unit 35 sets the built-in memory capacity monitoring unit 33 and the external memory capacity monitoring unit 34.soThe free space is calculated (step S55). Then, when the operator determines that reception is possible and inputs an instruction to perform reception from the key input unit 19 (step S56: Y), the data reception process for the recording medium 23 is started (step S56: Y). Step S57).
[0036]
On the other hand, if it is determined in step S52 that the recording medium 23 is not loaded (N), only the memory 17 is the destination. Therefore, in this case, the free space of the memory 17 as the destination is immediately calculated without selecting the destination (step S55). Then, if the operator gives an instruction to receive (step S56: Y), the process of receiving data to the memory 17 is started (step S57).
[0037]
On the other hand, if the operator determines in step S56 that reception is not possible (N), a key input indicating any one of processing for transferring between memories, connecting or exchanging a recording medium or exchanging, or canceling reception is performed from the key input unit 19. Will be performed. When the inter-memory transfer is selected (step S58: Y), the data transfer process between the memories is executed (step S59). Thus, the data receiving process is executed (step S57).
[0038]
On the other hand, when the currently mounted recording medium 23 is replaced with another empty recording medium 23, or when the recording medium 23 is newly mounted when the recording medium 23 is not mounted (step S1). S60: Y), the process returns to step S52, and the above-described processing using the recording medium 23 is performed again. In the case where the recording medium 23 is not replaced or newly mounted, the process of stopping data reception is selected. In this case (step S60: N), a stop process for data reception is executed (step S61).
[0039]
FIG. 4 shows a specific flow of the data transfer process described in step S59 of FIG. There are two types of transfer processing: transfer of data from the memory 17 to the recording medium 23 and, conversely, transfer of data from the recording medium 23 to the memory 17. Such transfer processing is performed not only when an empty area is created in advance when relatively large-volume data is received, but also when data existing in one medium is moved to the other medium and used. Is For example, there is a case in which an address collection of a destination fetched from an external computer into the recording medium 23 is transferred to the memory 17 so that the address collection can be used even when the recording medium 23 is not connected.
[0040]
In step S71 of FIG. 4, the portable information terminal device 10 is set to the transfer mode between memories. This mode setting may be realized by performing key input with a special combination prepared in advance from the key input unit 19 shown in FIG. 1, or a key dedicated to the transfer mode is prepared, and The mode may be set or canceled by pressing the button.
[0041]
When the transfer mode between the memories is set, the transfer destination is specified (step S72). At this point, the memory capacity of the transfer destination is displayed on the display unit 22 (step S73). In this state, the operator specifies the data to be transferred (step S74). The control unit 14 displays the amount of data to be transferred on the display unit 22 (Step S75). At this time, it is convenient to display together with the free space of the transfer destination.
[0042]
When the capacities of the data of the transfer source and the transfer destination are determined in this way, the control unit 14 determines the magnitude relationship between the two (step S76). If the transfer destination is larger (Y), data transfer is possible. A transfer process is executed (Step S77).
[0043]
On the other hand, if the capacity of the transfer destination is smaller than the capacity of the transfer source in step S76 (N), a warning display indicating that transfer is impossible is performed (step S78). The warning display may be performed by blinking a warning text on the display unit 22, or a warning sound may be output using the sounder 21.
[0044]
When a warning is displayed, the operator can select one of the two. One is to increase the free space in the transfer destination memory 17 or the recording medium 23 to make the data transfer proceed. That is, if the user has agreed to specify overwriting by specifying relatively insignificant data such as old data among the existing data (step S79: Y), the overwriting process is performed (step S80). As a result, when the condition of step S76 is satisfied (step S76: Y), the process proceeds to step S77 to start the transfer process.
[0045]
On the other hand, if there is no unnecessary data to be overwritten, or if the data of the transmission source is too large to perform the transfer processing even if overwritten (step S79: N), the data transfer is stopped. (Step S81). Of course, such an interruption of the data transfer may be voluntarily performed by the operator operating the key input unit 19, but even if the operator instructs the overwrite, the transfer is insufficient due to the insufficient capacity at that time. If it is determined that the transfer is impossible, a process of stopping the transfer is performed. In this case, the operator may take measures such as replacing the recording medium 23 with a new one, and restart the processing from step S71 again.
[0046]
FIG. 5 shows the flow of the data receiving process shown in step S57. When the receiving operation is started, the control unit 14 shown in FIG. 1 causes the wireless receiving unit 12 to receive a predetermined amount of data determined as the transmission source (step S91). The data received at this time is temporarily stored in a buffer memory (not shown) in the wireless receiving unit 12. At this time, the control unit 14 displays the total amount of data received from the transmission source on the display unit 22 up to the present (step S92). At this time, if the total amount of data to be received is known, the two are compared, the amount of currently received data is displayed as a percentage of the total amount of data to be received, and the remaining time required for reception is calculated. It is also effective to display the information.
[0047]
Next, the control unit 14 determines whether or not the free space in the memory 17 or the recording medium 23 to be stored exists in the predetermined unit amount (step S93). If there is, the received data of the predetermined unit is stored in the memory 17 or the recording medium 23 specified as the storage destination (step S94). At this point, it is determined whether or not all the received data has been received (step S95). If there is still remaining data (N), the process returns to step S91 to receive the next predetermined unit of data. To start). When the reception of data of a predetermined unit or less is finally completed (step S95: Y), the reception operation and the storage of the received data in the storage medium are all completed. Become.
[0048]
On the other hand, when it is determined that the received data cannot be stored in the process of step S93 (N), the reception is stopped (step S96). At this time, the wireless transmission / reception unit 12 notifies the transmission source that the reception has not been completed, and terminates the communication. When the reception of the reception data is not completed, the control unit 14 deletes all the reception data already stored in the storage destination (step S97), and ends the reception processing (end).
[0049]
In the processing described with reference to FIG. 5, it is assumed that the buffer memory has a capacity enough to receive at least the data of one reception data amount. And may be calculated as these free capacities. In such a case, it is necessary to perform the process of step S93 in advance when receiving data from the transmission source, confirm whether or not a predetermined amount of data can be received, and then receive the data.
[0050]
Further, in this embodiment, each time sequential reception is performed, it is determined whether or not there is free space in the memory 17 or the recording medium 23. However, the total amount of data to be transmitted from the transmission source is notified before the transmission is started. You may make it determine whether to start reception by comparing with the free space.
[0051]
FIG. 6 shows the flow of processing on the portable information terminal device side, including the case of receiving data in such a manner. First, the portable information terminal device 10 determines whether the total amount of data to be transmitted has been notified from the transmission source before receiving the data (step S101). If not notified, the processing after step S91 in FIG. 5 is started.
[0052]
On the other hand, if the total capacity of the data to be transmitted is notified from the transmission source (step S101: Y), the total capacity of the received data for which the free capacity of the memory 17 or the recording medium 23 to be stored is notified is determined. It is determined whether the state is equal to or greater than the state (step S102). If it is determined that there is a receivable amount of memory area on the portable information terminal device 10 side (Y), the data is sequentially received from the transmission source, and this is stored in the corresponding memory 17 or recording medium 23. It is stored (step S103). This storing operation is continued until all data from the transmission source is received (step S104). Then, the process is terminated when the reception is completed (end).
[0053]
On the other hand, if the free space on the memory 17 or the recording medium 23 specified by the receiving side is insufficient in step S102 (N), the receiving operation is performed before the original data is received from the transmission source. The operation is stopped (step S105). In this way, unlike step S91 in FIG. 5, in step S105 in FIG. 6, the reception is stopped before the reception of the original data is started, so that the reception is interrupted when it is determined that the memory area is insufficient. As compared with, the cost required for communication can be reduced.
[0054]
As described above, in the received data processing operation, the data receiving operation is performed without utilizing the free space of the memory 17 when storing the received data in the recording medium 23. However, in reality, even when the free areas of the memory 17 and the recording medium 23 do not both reach the source data, the data can be received by combining the two free areas. There are also situations. Such data reception can be dealt with by performing the transfer processing shown in FIG. 4 in advance to increase the free space in one memory area. However, if this method is adopted, much of the data that should originally be in a specific storage location is forcibly transferred to the other memory 17 or the recording medium 23 side.
[0055]
In this case, since the corresponding data no longer exists from the location where the operator has stored that the data has been stored in the memory area before, the trouble of searching for the data increases. In addition, if data is moved to the other side more than necessary in consideration of safety without knowing the total capacity of the data to be received, the free space in the memory area on the transfer side becomes excessively small, and the buffer for the primary processing is reduced. The lack of a memory area may adversely affect data processing.
[0056]
FIG. 7 shows a flow of a data reception process in which a minimum necessary data transfer is enabled even in the case of receiving data whose total amount is unknown, in order to eliminate such a drawback. Here, the description will be limited to the case where the recording medium 23 is selected as the data receiving destination. When the mode for receiving data from the transmission source is set (step S111: Y), it is determined whether or not the recording medium 23 is designated as a storage location for the received data (step S112). The processing when the memory 17 side is specified as the storage destination (step S113) may be the same processing as when the recording medium 23 is specified as the storage destination of the received data, which will be described next. The processing described above may be used.
[0057]
If the recording medium 23 is designated as the storage destination of the received data (step S112: Y), the control unit 14 calculates the free space on the memory 17 and the recording medium 23 side and calculates the maximum capacity that can be stored in the memory 17. The data on the recording medium 23 is transferred to the memory 17 within the range (step S114). Here, the maximum refers to the maximum value when viewed in processing units such as a file. If a free space for data processing is originally required in the memory 17, the remaining space is left. The free area is the data transfer destination. Since the data transfer process has been described with reference to FIG. 4, the description will be omitted.
[0058]
When the largest empty area is created in the recording medium 23 where the received data is stored in this way, the data received from the transmission source for this empty area is stored (step S115). If the storage area of the data in the recording medium 23 is full before the reception of all data from the transmission source is completed (Step S116: N, Step S117: N), the reception is stopped (Step S118). . Then, the received data transmitted from the source this time is deleted (step S119). These processes are the same as the processes in steps S96 and S97 in FIG.
[0059]
When the processing of the received data is completed as described above, the data saved for storing the received data from the recording medium 23 to the memory 17 is transferred to the recording medium 23 again (step S120). That is, in this case, since the storage processing of the received data was not successful, the memory 17 and the recording medium 23 completely return to the state before the processing of step S114.
[0060]
Separately from this, when the data receiving process is successful (step S116: Y), the free space of the storage medium 23 after storing the received data is calculated (step S121). Then, of the data once saved to the memory 17 within the range of the free space, the data which may be returned to the recording medium 23 is transferred to the recording medium 23 (Step S122). Here, on the assumption that the memory 17 in the portable information terminal device 10 stores data having higher importance than the recording medium 23, the data is returned to the recording medium 23 in order from the lower priority. However, this is not the case.
[0061]
The priority at the time of saving the data may be determined in advance by the operator for each data in the recording medium 23, or may be transferred within a range where the data in the recording medium 23 can be stored in the memory 17 in step S114. At this time, the order of the data that may be transferred may be designated by the operator, and the data may be returned to the recording medium 23 in order within the range that can be stored in the recording medium 23 from the data having the lower order.
[0062]
【The invention's effect】
As described above, according to the first aspect of the invention,Since the portable information terminal device is provided with an interface circuit for detachably connecting the second memory, the second memory can be detachably connected as needed. Properties can be further enhanced. Further, when the second memory is mounted, it is a dedicated memory, so that the memory capacity of the apparatus can be efficiently increased. In addition, the transfer data instruction input means can indicate the transfer destination between the first memory and the second memory, and the free space calculation means can determine the transfer destination memory of the first memory and the second memory. When the data transfer execution means transfers data between these memories, the data transfer can be performed with the free space as a limit, and the amount of stored data can be reduced. Safety can be improved.
[0063]
According to the second aspect of the present invention, whether or not overwriting is possibleinputSince the means is provided, overwriting can be performed as needed, and the amount of data to be transferred can be increased as needed.
[0064]
According to the third aspect of the present invention,Since the data received by the data receiving means is stored in the second memory detachably connected by the interface circuit, even if the capacity of the first memory is insufficient, the connection of the second memory allows the data to be stored. The possibility of reception can be increased. In addition, when other data is already stored in the connected second memory, these data in the second memory are transferred to the first memory within the maximum free space of the first memory. The data can be received in a state where the free space of the second memory is maximized, and the situation in which the second memory cannot receive data due to insufficient capacity can be avoided as much as possible.
[0065]
Furthermore, according to the invention described in claim 4,When the data transferred by the pre-reception data transfer means is restored according to the priority order with the free space as a limit, the data is returned according to the priority order. As a result, it is possible to arrange the memory according to the intention, and it is possible to avoid a situation in which data is scattered by repeating the data receiving operation.
[0066]
In the invention according to claim 5,Since the importance is used as a criterion for the priority, data with higher importance has a higher possibility of being left in the first memory.
[0067]
Further, in the invention according to claim 6, according to claim 1,Or claim 2The portable information terminal device described above has display means for displaying the free space calculated by the free space calculation means,memoryIt is possible to know the free capacity of the data, and to select the data to be transferred, and to determine which memory should receive the data based on the available capacity.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a portable information terminal device according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a functional circuit that realizes a data transfer function in a control unit according to the embodiment.
FIG. 3 is a flowchart illustrating a processing flow when a recording medium is designated as a receiving destination in the embodiment.
FIG. 4 is a flowchart showing a specific flow of a data transfer process described in step S59 of FIG. 3;
FIG. 5 is a flowchart showing a flow of a data receiving process shown in step S57.
FIG. 6 is a flowchart showing a reception operation of the portable information terminal device in a case where a total amount of received data is notified from a transmission source.
FIG. 7 is a flowchart showing a flow of a data reception process which enables a minimum necessary data transfer even when receiving data whose total amount is unknown.
FIG. 8 is a schematic configuration diagram showing an outline of a conventional portable information terminal device using an expansion card.
FIG. 9 is a schematic configuration diagram showing a conventional portable information terminal device connected to an electronic organizer.
[Explanation of symbols]
10 Portable information terminal device
12 Wireless transceiver
14 Control unit
17 Memory
18 Memory Expansion Interface
22 Display
23 Recording media
31 CPU
32 Received data capacity monitoring unit
33 Built-in memory capacity monitoring unit
34 External memory capacity monitoring unit
35 Comparison section
38 Transfer direction designation section

Claims (6)

Data receiving means for receiving data;
A first memory prepared for storing data received by the data receiving means;
An interface circuit for detachably connecting a second memory for storing data stored in the first memory as required,
Transfer data to be transferred between the first memory and the second memory in a state where the second memory is connected to the interface circuit, and transfer data instruction input means for designating the transfer destination;
A free space calculating means for calculating a free space of a transfer destination memory of the first memory and the second memory in a state where the second memory is connected to the interface circuit;
When it is determined that the free space of the transfer destination memory of the first memory and the second memory is equal to or larger than the transfer data amount, the transfer data instruction input means inputs the transfer data instruction. And a data transfer executing means for transferring, from the transfer source, all of the transfer data designated by the transfer data designation input means when performed. A first memory provided for storing data;
An interface circuit for detachably connecting a second memory for transferring and storing data with the first memory as needed, and
Transfer data to be transferred between the first memory and the second memory in a state where the second memory is connected to the interface circuit, and transfer data instruction input means for designating the transfer destination;
Storage memory designating means for designating a memory for storing the transfer data out of the first and second memories;
Free capacity calculating means for calculating the free capacity of the transfer destination memory of the first memory and the second memory while the second memory is connected to the interface circuit;
Capacity comparison means for comparing the free space of the memory of the transfer destination calculated by the free space calculation means with the transfer data capacity specified by the transfer data command input means;
Overwriting permission / non-permission input means for inputting permission / prohibition of overwriting of the transfer destination memory when transferring the transfer data when the capacity comparing means determines that the free space of the transfer destination memory is smaller ,
While abort the data transfer when there is an input to not overwrite this overwritability input means is and the capacity comparing means when there is an input to variable overwriting is towards the free space in the destination memory A portable information terminal device, comprising: transfer processing control means for executing the transfer of the transfer data when it is not determined that the transfer data is small. Data receiving means for receiving data;
A first memory prepared for storing data received by the data receiving means;
An interface circuit for detachably connecting a second memory for transferring and storing data with the first memory as needed, and
When storing data received by the data receiving means in the second memory in a state where the second memory is connected to the interface circuit, a free space calculation before reception for calculating a free space in the first memory Means,
A pre-reception data transfer unit for transferring data already stored in the second memory to the first memory within a maximum range of the free space of the first memory calculated by the free space calculation unit before reception; ,
Second memory data storage means for storing data received by the data reception means in the second memory after data transfer by the pre-reception data transfer means;
When all the data received by the data receiving means are stored by the second memory data storing means, a post-receiving free space calculating means for calculating a free space of the second memory after the storing;
A storage success data return means for returning the data transferred from the second memory to the first memory to the second memory within the maximum range of the free space calculated by the free space calculation means after the reception;
The data received by the data receiving means and stored in the second memory when the free space of the second memory is exhausted before all the data received by the data receiving means are stored by the second memory data storing means. Data erasing means for erasing all
A storage failure data return means for returning the data transferred from the second memory to the first memory to the second memory after the data is erased by the data erasing means. A portable information terminal device. The data return unit at the time of successful storage selects the data transferred by the data transfer unit before reception in the order from the lowest priority data set in advance in the maximum range of the free area as a limit and transfers the data to the second memory. 4. The portable information terminal device according to claim 3, wherein: The portable information terminal device according to claim 4 , wherein the priority order is set higher so that data having higher importance is left in the first memory . 3. The portable information terminal device according to claim 1 , further comprising a display unit that displays the free space calculated by the free space calculation unit.

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