JP4403542B2 - Portable terminal, directory management method, and directory management program - Google Patents

Description

  The present invention relates to a portable terminal, a directory management method, and a directory management program.

  Conventionally, a portable terminal such as a cellular phone and a host computer are connected via a communication line, and a predetermined data file is loaded (transfer from the host to the portable terminal) between the portable terminal and the host computer. A technique for unloading (transfer from a portable terminal to a host) is known (see, for example, Patent Document 1). This conventional technology eliminates the complexity of changing the transfer program that accompanies the addition or deletion of a file, which occurs when a file is directly specified by a transfer program provided on a mobile terminal and a data file is loaded or unloaded. To do.

  By the way, in a portable terminal such as a digital camera or a mobile phone, captured still image data, moving image data, recorded audio data, and the like are stored in an external recording medium (for example, an SD card or a miniSD card) that can be attached to the main body. It is possible to do. The external recording medium has a directory structure similar to a directory structure handled by a general OS (such as Windows (registered trademark)), and stores the still image data and audio data under a predetermined directory. It has become.

  In the mobile terminal described above, when accessing an external recording medium, it is easy to display only the directory in which the file exists. It has become a specification to be deleted.

JP 2000-322387 A

  By the way, the above-described portable terminal has an interface such as a USB that can be connected to a personal computer or a PDA as an external device, and depending on the model, it can be recognized as a storage device and saved from the external device to an external recording medium. It is possible to manipulate various data. However, in the case of a special mobile terminal such as a mobile phone equipped with an external storage medium, the mobile phone itself operates in its own OS environment, or the memory structure of the main body is special, so that it can be recognized as a storage device. Have difficulty. Therefore, as described above, in the same way as file operations on a mobile terminal alone, according to commands from the external device, files on the external recording medium of the mobile terminal are deleted, and directories with zero files are automatically deleted. In this case, even when an external recording medium is accessed from an external device, the current directory may be lost even if the number of files is zero. For this reason, the mobile phone has a problem that the subsequent file management from the external device becomes complicated or impossible. Further, if the directory is simply left when the number of files becomes zero, there is a problem that directory display on a mobile phone becomes complicated and lacks convenience.

  Therefore, the present invention provides a portable terminal, a directory management method, and a directory management program that can facilitate file management for file operations from an external device to an external recording medium and can improve convenience. Objective.

  To achieve the above object, a portable terminal according to the first aspect of the present invention comprises a storage means for storing various data files, an operation means for operating various data files stored in the storage means, an external device, and a communication line. In a portable terminal having a connection means for connecting via a connection means, and a transfer means for transferring various data files stored in the storage means to the external device in accordance with instructions from the external device connected by the connection means, Determines whether command receiving means for receiving a file operation command as an instruction from the external device and operations of various data files stored in the storage means are based on the operating means or the command receiving means The number of files in the current directory became zero due to the discriminating means to perform and the operation of various data files If the determination unit determines that the file operation is based on the command reception unit, the current directory is not deleted, while the determination unit determines that the file operation is based on the operation unit. In some cases, the system includes directory management means for deleting the current directory.

  As a preferred aspect, for example, as in claim 2, in the portable terminal according to claim 1, the directory management means sets the number of files in the current directory to zero according to the file operation command received by the command receiving means. In such a case, the directory may be deleted when the transfer of the data file by the transfer means is completed.

  As a preferred aspect, for example, as in claim 3, in the portable terminal according to claim 1, when the number of files in the current directory becomes zero by the file operation command received by the command receiving means, the number of files Further comprising holding means for holding a directory path indicating a directory whose value is zero, wherein the directory management means stores the directory path held in the holding means when the transfer of the data file by the transfer means is completed. You may refer to and delete the directory corresponding to the directory path.

  As a preferred aspect, for example, as in claim 4, in the portable terminal according to any one of claims 1 to 3, the storage means is a recording medium that is detachably attached to the portable terminal. Also good.

  In order to achieve the above object, a directory management method according to a fifth aspect of the present invention includes an operation unit that operates various data files stored in a memory, and a connection unit that is connected to an external device via a communication line. A directory management method for a portable terminal having a function of transferring various data files stored in the memory to the external device in accordance with instructions from the external device connected by the connection unit. As an instruction, a command reception step for receiving a file operation command, a determination step for determining whether the operation of various data files stored in the memory is based on the operation unit or the command reception step, If the number of files in the current directory becomes zero due to various data file operations, the above If it is determined in the step that the file operation is based on the command reception step, the current directory is not deleted, while the determination step determines that the file operation is based on the operation of the operation unit. In some cases, the method includes a directory management step of deleting the current directory.

  To achieve the above object, a directory management program according to a sixth aspect of the present invention comprises an operation unit that operates various data files stored in a memory, and a connection unit that is connected to an external device via a communication line. A file management program executed by a portable terminal having a function of transferring various data files stored in the memory to the external device according to instructions from the external device connected by the connection unit, It is determined whether a command reception step for receiving a file operation command as an instruction from the external device and operations of various data files stored in the memory are based on the operation unit or the command reception step. The number of files in the current directory is zero due to the determination step and various data file operations. If it is determined that the file operation is based on the command reception step in the determination step, the current directory is not deleted, whereas the file operation is based on the operation of the operation unit in the determination step. If it is determined that the current directory is a directory management step of deleting the current directory, the portable terminal is caused to execute.

  According to the first aspect of the present invention, a command operation unit receives a file operation command as an instruction from the external device, and an operation of various data files stored in the storage unit is performed by the determination unit. Or based on the command receiving means, when the number of files in the current directory becomes zero by the operation of various data files by the directory management means, based on the command receiving means. The current directory is not deleted when it is determined as a file operation, while the current directory is deleted when it is determined by the determination means that the file operation is based on the operation means. So, for file operations from external devices to external recording media You can file management easier, and the advantage that it is possible to improve the convenience is obtained.

  According to a second aspect of the present invention, in the first aspect of the invention, when the number of files in the current directory becomes zero by the file management command received by the command receiving means by the directory management means, Since the directory is deleted when the transfer of the data file by the transfer means is completed, the file management for the file operation from the external device to the external recording medium can be facilitated, and the convenience is improved. The advantage that it can be obtained.

  According to the invention described in claim 3, in the invention according to claim 1, when the number of files in the current directory becomes zero by the file operation command received by the command receiving means, the directory in which the number of files becomes zero Is stored in the holding means, and the directory management means refers to the directory path held in the holding means when the transfer of the data file by the transfer means is completed, and the directory corresponding to the directory path Therefore, there is an advantage that file management for file operations from an external device to an external recording medium can be facilitated and convenience can be improved.

  According to the invention described in claim 4, since the storage means is a recording medium detachably attached to the portable terminal in the invention of any one of claims 1 to 3, the storage means is external to the external recording medium. There are advantages that file management for file operations from the device can be facilitated and convenience can be improved.

  According to the invention of claim 5, in the invention of claim 4, in the command reception step, a file operation command is received as an instruction from the external device, and in the determination step, various data files stored in the memory Is determined based on whether the operation is based on the operation unit or the command reception step, and if the number of files in the current directory becomes zero due to various data file operations in the directory management step, the determination step When it is determined that the file operation is based on the command receiving step, the current directory is not deleted. On the other hand, if the file operation is determined based on the operation of the operation unit in the determination step Since the current directory is deleted, the external recording medium File management with respect to file operations from an external device that can be easily, and has the advantage that it is possible to improve the convenience is obtained.

  According to the invention of claim 6, whether the command reception step of receiving a file operation command as an instruction from the external device and the operation of various data files stored in the memory are based on the operation unit, If the number of files in the current directory becomes zero due to the operation of various data files, it is determined that the file operation is based on the command reception step in the determination step. In the case where the current directory is not deleted, the directory management step of deleting the current directory when the determination step determines that the file operation is based on the operation of the operation unit. So that it can be executed outside the external recording medium. File management with respect to file operations from the device can be easily and is the advantage that it is possible to improve convenience obtained.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings as an example applied to a camera-equipped mobile phone.

A. Configuration of Embodiment FIG. 1 is an external view (open state: front view, rear view) of a camera-equipped mobile phone 1 according to a first embodiment of the present invention. The mobile phone 1 according to the first embodiment has a two-fold structure including a lid portion 2 and a main body portion 3. The speaker 101 is provided on the front side of the lid portion 2 and outputs sound during a call in the telephone mode. The display unit (main display unit) 102 is a QVGA resolution color liquid crystal having a display area of 320 × 240 in width, and when a user operates normally, an image captured in a vertically long display form or a download And a moving image having a maximum L size (a normal aspect ratio size displayed in a size of vertical 144 dots × horizontal 176 dots) can be displayed. The main display unit 102 can display a moving image of 240 dots long × 320 dots wide in a horizontally long display form. The antenna 103 is provided on the back surface of the main body 3 and is extendable.

  On the front surface of the main body 3, a camera key 104, a mail key 105, a cross key 106, an enter key 107, an address key 108, a net connection key 109, a clear key 110, an on-hook key 111, an off-hook key 112, and a numeric key 113 are provided. ing. Among these keys, a cross key 106, an enter key 107, an address key 108, and a network connection key 109 are arranged at positions that can be operated with the thumb of the right hand when the mobile phone 1 is held with the right hand. A shutter key 113b is provided on the side surface of the main body 3 to start moving image shooting with the lid 2 closed.

  The camera key 104 is a key for instructing the shift to the camera mode in the power-on state and the activation of the DSP 140 described later. The mail key 105 is a key for instructing to shift to the mail mode and load the mail program. The cross key 106 is a key for instructing the movement of the cursor and the movement of the focus (selection). The determination key 107 is a key used to determine mode selection, to determine selection, or to be used as a shutter key in the shooting mode. The address key 108 is a key for displaying address book data. A network connection key 109 is a key for connecting to the Internet. The clear key 110 is a key for canceling selection or the like. The on-hook key 111 is a key for connecting a line. The off-hook key 112 is a telephone mode / camera mode combined power off key, a telephone mode startup power on key, and a key for disconnecting the line. The numeric keypad 113 is a key for performing character input or dial input. The microphone 114 is provided in the lower part of the main body 3 and performs voice input during a call. The card slot (cover) 115 is a slot into which an external recording medium (for example, a miniSD card) is mounted.

  A sub-display unit 116 is provided on the back surface of the lid unit 2 so as to display a date and time, an incoming call notification, an incoming mail notification, an auxiliary screen at the time of taking a still image or a video, etc. in a state where the mobile phone 1 is closed. In addition to being used, in the camera mode, it functions as a finder for displaying on the monitor images sequentially captured by an imaging lens 118 described later. The notification LED 117 performs incoming call notification and mail incoming call notification by emitting light. The imaging lens 118 captures still images and moving images. The flash LED 119 is a light emitting unit that emits light when taking a still image or a moving image and prevents underexposure. In addition to notifying incoming calls and emergencies, the notification speaker 120 outputs a shutter sound so that it can be heard by the subject in the camera mode. Reference numeral 121 denotes a battery back. Reference numeral 147 denotes a USB interface for USB connection to an external device 200 described later via a cradle (not shown).

  Next, FIG. 2 is a block diagram showing the configuration of the camera-equipped mobile phone 1 described above. In the figure, a wireless transmission / reception unit 130 performs communication processing including modulation / demodulation based on the PSK system and terminal authentication processing based on the CDMA system, such as wirelessly transmitting and receiving voice and data (mail data) via the antenna 103 and modulating / demodulating. Do.

  The communication control unit 131 controls the device including WWW connection control. The communication data processing unit 1311 includes a CLEP audio decoding processing circuit, a packet data generation circuit, and a packet data restoration circuit, and performs data processing according to a communication protocol. The audio interface 1312 performs input / output processing of the audio signal processed by the communication data processing unit 1311, inputs the audio from the microphone 114, converts it into an audio signal, and outputs the audio signal from the speaker 101.

  The system ROM 132 has a data structure as shown in FIG. 3, and mainly includes a basic OS for controlling the overall wireless communication processing, a protocol / program area for storing a protocol program, and various data (subscriptions required for terminal authentication). A non-volatile setting data area for storing a user ID and the like. The RAM 133 has a data structure as shown in FIG. 4 and includes drivers and work areas related to communication processing. The image processing control unit 134 performs MPEG (MPEG4) / JPEG encoding and decoding processing for moving / still images at the time of shooting or playback. The RAM 135 has the data structure shown in FIG. 5 and includes a work area having an application heap (system resource area), a backup area for storing user data, a system management area for storing a file system, a cache memory area, and the like. It consists of areas. The program ROM 136 is composed of a rewritable flash ROM, has a data structure as shown in FIG. 6, and stores a data area for storing images, illustrations, fonts, user data management data, file system management data, and the like. It consists of a file system area, a dictionary area for storing data and programs, and a UI program area, and in particular stores a control program for the DSP 140.

  The display module system driver 137 includes a display buffer, and drives the sub display unit 116, the main display unit 102, the notification LED 117, and the flash LED 119. The step motor 138 performs zoom control of the imaging lens 118. The imaging device 139 is composed of a CCD or CMOS equivalent to 2 million effective pixels, captures an image focused by the imaging lens 118 as a color image, performs A / D conversion, and stores it in the RAM 150 of the in-camera signal processing unit 140. Output sequentially. The DSP 151 is included in the in-camera signal processing unit 140. The imaging data captured by the imaging device 139 and sequentially stored in the RAM 150 is cut out according to a set frame rate, and read stream data is generated. . The imaging device 139 has a capability of capturing (imaging) at a predetermined frame rate.

  The sound source IC 142 generates a ring tone or the like. The amplifier 143 amplifies the audio signal from the sound source IC 142 and outputs it from the notification speaker 120. The connector 144 attaches an external recording medium (for example, a miniSD card) 145. The external recording medium 145 has a directory structure similar to a directory structure handled by a general OS (such as Windows (registered trademark)), and stores still image data and audio data under a predetermined directory. Yes. The external interface controller 146 controls data file operations on the external recording medium 145 in accordance with commands for data transmission / reception with the external device 200 via the USB interface 147 or data operation on the external recording medium 145. The user memory 149 has a data structure as shown in FIG. 7, and includes a data area for storing downloaded data, captured image data, moving image files, mail data, address book data, a read-only area, and a file system management. Consists of data. The address data bus processing unit 123 controls the address control of the communication control unit 131 and the image processing control unit 134 and the flow of data on the bus.

B. Operation of First Embodiment Next, the operation of the first embodiment described above will be described. Note that the camera-equipped mobile phone 1 described above is connected to an external device 200 such as a PC via an external interface controller 146 and a USB interface 147, as shown in FIG. Also, as shown in FIG. 9, the external recording medium 145 attached to the camera-equipped mobile phone 1 stores a directory “PHOTO_DIR” for storing still image data and audio data as a lower directory of the root directory “ROOT”. The directory “SOUND_DIR” exists, the still image data “aaa0000.jpg” is stored in the directory “PHOTO_DIR”, and the audio data “bbbbb0000.wav” is stored in the directory “SOUND_DIR”. And

  Here, FIG. 10 is a sequence diagram for explaining processing of the photographing mode of the camera-equipped mobile phone 1 according to the first embodiment. First, when the external device 200 such as a PC and the camera-equipped mobile phone 1 are connected by USB and the camera-equipped mobile phone 1 is set to the external device connection transfer mode, the external device 200 and the camera-equipped mobile phone 1 recognize the USB connection. Then, a connection is established (step S1). When the connection is established, the camera-equipped mobile phone 1 first sets the current directory of the external recording medium 145 to “ROOT”. On the other hand, the external device 200 instructs to move to the current directory below the directory PHOTO_DIR and display the file list by a user operation (step S2). The external device 200 sends a current directory move command to the camera-equipped mobile phone 1 in accordance with the move instruction (step S3). Upon receiving the current directory move command, the camera-equipped mobile phone 1 sends a confirmation command AKC to the external device 200 (step S4), and moves the current directory of the external recording medium 145 to “PHOTO_DIR”.

  Next, the external device 200 sends a file list acquisition command for the current directory to the camera-equipped mobile phone 1 (step S5). Upon receiving the file list acquisition command, the camera-equipped mobile phone 1 sends a confirmation command AKC to the external device 200 (step S6), and a Dataframe (= “” indicating a list of files stored under the current directory “PHOTO_DIR”. aaa0000.jpg ") is returned to the external device 200 (step S7). The external device 200 that has received the file list Dataframe sends a confirmation command AKC to the camera-equipped mobile phone 1 (step S8).

  Next, the external device 200 displays the result in accordance with the received file list Dataframe (= “aaaaa0000.jpg”), and then designates execution for deleting the still image file “aaa0000.jpg” by a user operation. Is performed (step S9). Thereby, the external device 200 sends a file deletion command for deleting the file name = “aaaaa0000.jpg” to the camera-equipped mobile phone 1 (step S10). When receiving the file deletion command, the camera-equipped mobile phone 1 deletes the still image file “aaa0000.jpg” stored in the external recording medium 145 (step S11). Thereafter, the number of remaining files in the directory PHOTO_DIR becomes zero. In this case, since the mode is “transfer mode”, the current directory “PHOTO_DIR” is not deleted. Thereafter, the camera-equipped mobile phone 1 sends a confirmation command AKC indicating successful deletion of the file to the external device 200 (step S12).

  When the external device 200 receives the confirmation command AKC, the external device 200 sends a file list acquisition command in the current directory to the camera-equipped mobile phone 1 in order to re-acquire the deleted list (step S13). Upon receiving the file list acquisition command, the camera-equipped mobile phone 1 sends a confirmation command AKC to the external device 200 (step S14), and Dataframe (= None) indicating a list of files stored under the current directory “PHOTO_DIR” ) To the external device 200 (step S15). The external device 200 that has received the file list Dataframe sends a confirmation command AKC to the camera-equipped mobile phone 1 (step S16).

  Next, the external device 200 displays the file deletion success and the file list after the deletion (step S17). Next, when the external device 200 is instructed to move to a directory one level higher by a user operation (step S18), the external device 200 sends a current directory move command to the camera-equipped mobile phone 1 (step S19). When receiving the current directory move command, the camera-equipped mobile phone 1 sends a confirmation command AKC to the external device 200 (step S20), and moves the current directory of the external recording medium 145 to “ROOT”.

  According to the first embodiment described above, when the external recording medium 145 attached to the camera-equipped mobile phone 1 is accessed from the USB-connected external device 200, the number of files in the directory is reduced by deleting the file. Even if it becomes zero, the directory is not automatically deleted. Therefore, in the situation where the external recording medium 145 is accessed from the external device 200, the folder structure does not change even if the file is deleted. File operations (such as obtaining the current directory's file list) become possible.

C. Second Embodiment Next, a second embodiment of the present invention will be described. In the second embodiment, when the transfer mode accessed from the external device 200 ends, the directory in which the number of files becomes zero is deleted.

  Here, FIG. 11 and FIG. 12 are sequence diagrams for explaining the processing of the photographing mode of the camera-equipped mobile phone 1 according to the second embodiment. Since steps S1 to S16 are the same as those in the first embodiment described above, only a brief description will be given.

  In the second embodiment, when an execution designation for deleting the still image file “aaa0000.jpg” is performed by the user operation (step S9), the external device 200 is stored in the external recording medium 145. The image file “aaa0000.jpg” is deleted (step S11). At this time, although the number of files in the directory PHOTO_DIR is zero, because of the “transfer mode”, the confirmation command AKC indicating successful deletion of the file is transmitted to the external device 200 without deleting the current directory “PHOTO_DIR” ( Step S12).

  When the external device 200 receives the file list Dataframe (file list = none) indicating the list of files stored under the current directory “PHOTO_DIR” from the camera-equipped mobile phone 1 (step S15), A confirmation command AKC is sent (step S16), and then the success of file deletion is displayed (step S30).

  At this point, the directory structure in the external recording medium 145 of the camera-equipped mobile phone 1 becomes the directory structure 300 shown in FIG. Next, when the user performs an operation to end the “transfer mode” in the external device 200 (step S31), a disconnection request is sent to the camera-equipped mobile phone 1 (step S32). When receiving the disconnection request, the camera-equipped mobile phone 1 performs the following processing as the transfer mode end processing.

  First, the number of entries in the directory ROOT is checked. In this case, since the directory PHOTO_DIR and the directory SOUND_DIR exist below the directory ROOT, they remain as they are.

  Next, the number of entries in the directory PHOTO_DIR is checked. If the number of files is not zero, nothing is done. On the other hand, if the number of files is zero, the directory PHOTO_DIR is deleted. In this case, in step S11, aaa0000. Since jpg has been deleted, the number of files in the directory PHOTO_DIR is zero, so the directory PHOTO_DIR is deleted.

  Next, the number of entries in the directory SOUND_DIR is checked. If the number of files is not zero, nothing is done. On the other hand, if the number of files is zero, the directory SOUND_DIR is deleted. In this case, the number of files in the directory SOUND_DIR is bbbb0000. Since wav exists, the directory SOUND_DIR is left as it is.

  At this point, the directory structure in the external recording medium 145 of the camera-equipped mobile phone 1 becomes the directory structure 301 shown in FIG. Thereafter, the camera-equipped mobile phone 1 sends a command indicating completion of disconnection to the external device 200 (step S34), and the process ends.

  According to the second embodiment described above, when the external recording medium 145 attached to the camera-equipped mobile phone 1 is accessed from the external device 200 connected by USB or the like, the file in the directory is deleted by deleting the file. Even if the number becomes zero, the directory is not automatically deleted. Therefore, in the situation where the external recording medium 145 is accessed from the external device 200, the folder structure does not change even if the file is deleted. Later file operations (such as obtaining the current directory's file list) become possible. Further, according to the second embodiment described above, when the transfer mode accessed from the external device 200 ends, that is, when the transfer mode with the external device 200 ends, the user operates the external recording medium 145. Since the folder whose number of files has become zero is arranged (deleted) before shifting to the mode to be performed, the specification in the operation mode of the external recording medium 145 by the user of the camera-equipped mobile phone 1 (the number of files is zero) (The folder does not exist) can be satisfied in advance.

D. Third Embodiment Next, a third embodiment of the present invention will be described. In the third embodiment, when the transfer mode accessed from the external device 200 ends, it is checked whether or not the number of files becomes zero only for the directory accessed from the external device 200, and the number of files is checked. If is zero, delete the directory.

  Here, FIG. 13 and FIG. 14 are sequence diagrams for explaining the processing of the photographing mode of the camera-equipped mobile phone 1 according to the third embodiment. Note that the same processing steps as those in the first embodiment or the second embodiment described above are denoted by the same reference numerals, and are simply described.

  In the second embodiment, when the external device 200 and the camera-equipped mobile phone 1 recognizes the USB connection and establishes the connection (step S1), the camera-equipped mobile phone 1 performs the organization process when the transfer mode ends. The memory holding the path is initialized (step S40).

  Next, when the external device 200 is designated for execution to delete the still image file “aaa0000.jpg” by a user operation (step S9), the still image file “aaa0000” stored in the external recording medium 145 is designated. .Jpg "is deleted (step S11). At this time, although the number of files in the directory PHOTO_DIR is zero, since it is “transfer mode”, the current directory “PHOTO_DIR” is not deleted, and the directory path (= PHOTO_DIR) is changed to the “organization directory path list” in the memory. (S41). In other words, when the number of files in the current directory becomes zero by a file deletion command from the external device 200, the directory path is stored in the “organized directory path list” in the memory without deleting the current directory each time. Will continue to add. When the number of files becomes zero by a command for a plurality of directories, all the directory paths are added to the “organized directory path list” in the memory. Then, a confirmation command AKC indicating successful deletion of the file is sent to the external device 200 (step S12).

  When the external device 200 receives the file list Dataframe (file list = none) indicating the list of files stored under the current directory “PHOTO_DIR” from the camera-equipped mobile phone 1 (step S15), A confirmation command AKC is sent (step S16), and then the success of file deletion is displayed (step S30).

  At this point, the directory structure in the external recording medium 145 of the camera-equipped mobile phone 1 becomes the directory structure 302 shown in FIG. Next, when the user performs an operation to end the “transfer mode” in the external device 200 (step S31), a disconnection request is sent to the camera-equipped mobile phone 1 (step S32). Upon receipt of the disconnection request, the camera-equipped mobile phone 1 refers to the “organized directory path list” as the transfer mode end process, and in accordance with the directory path held in the list (in this case, PHOTO_DIR) Is deleted.

  At this time, the directory structure in the external recording medium 145 of the camera-equipped mobile phone 1 becomes the directory structure 303 shown in FIG. Thereafter, the camera-equipped mobile phone 1 sends a command indicating completion of disconnection to the external device 200 (step S34), and the process ends.

  According to the third embodiment described above, when the external recording medium 145 attached to the camera-equipped mobile phone 1 is accessed from the external device 200 connected via USB or the like, the file in the directory is deleted by deleting the file. Even if the number of files becomes zero, the directory is not automatically deleted. Therefore, in the situation where the external recording medium 145 is accessed from the external device 200, the folder structure does not change even if the file is deleted. Subsequent file operations (such as obtaining the current directory's file list) become possible. Further, according to the above-described third embodiment, at the time when the transfer mode accessed from the external device 200 is completed, whether the number of files becomes zero only for the directory accessed from the external device 200. Since the directory is deleted if the number of files is zero, the specification in the operation mode of the external recording medium 145 by the user of the camera-equipped mobile phone 1 (a folder with zero files is (Not present) can be satisfied in advance, and the processing time can be shortened.

1 is an external view of a camera-equipped mobile phone 1 according to a first embodiment of the present invention. 1 is a block diagram showing a configuration of a camera-equipped mobile phone 1. FIG. 3 is a conceptual diagram showing a data structure of a system ROM 132. FIG. 3 is a conceptual diagram showing a data structure of a RAM 133. FIG. 3 is a conceptual diagram showing a data structure of a RAM 135. FIG. 3 is a conceptual diagram showing a data structure of a program ROM 136. FIG. 4 is a conceptual diagram showing a data structure of a user memory 149. FIG. It is a conceptual diagram which shows the structure at the time of accessing the external recording medium of the mobile telephone 1 with a camera from an external device. It is a conceptual diagram which shows the initial directory structure of an external recording medium. It is a sequence diagram for demonstrating the process of the imaging | photography mode of the mobile telephone 1 with a camera by this 1st Embodiment. It is a sequence diagram for demonstrating the process of the imaging | photography mode of the mobile telephone 1 with a camera by this 2nd Embodiment. It is a sequence diagram for demonstrating the process of the imaging | photography mode of the mobile telephone 1 with a camera by this 2nd Embodiment. It is a sequence diagram for demonstrating the process of the imaging | photography mode of the mobile telephone 1 with a camera by this 3rd Embodiment. It is a sequence diagram for demonstrating the process of the imaging | photography mode of the mobile telephone 1 with a camera by this 3rd Embodiment.

Explanation of symbols

1 Mobile phone (mobile terminal)
2 Lid 3 Main body 101 Speaker 102 Main display 103 Antenna 104 Camera key 105 Mail key 106 Four-way key (operation means, operation unit)
107 Enter key (operation means, operation unit)
108 address key 109 network connection key 110 clear key 111 on-hook key 112 off-hook key 113 numeric keypad (operation means, operation unit)
113b Shutter key 114 Microphone 116 Sub display 117 LED for notification
118 Imaging Lens 119 Flash LED
120 Notification Speaker 123 Address Data Bus Processing Unit 130 Wireless Transmission / Reception Unit 131 Communication Control Unit 1311 Communication Data Processing Unit 1312 Audio Interface 132 System ROM
133 RAM
134 Image processing control unit 1341 Camera interface 135 RAM
136 Program ROM
137 Display module system driver 138 Step motor 139 Imaging device 140 In-camera signal processing unit 142 Sound source IC
143 Amplifier 144 Connector 145 External recording medium (storage means, recording medium, memory)
146 External interface controller (transfer means, command receiving means, discrimination means, directory management means, holding means)
147 USB interface (connection means, connection part)
149 User memory 150 RAM
151 DSP
200 External equipment

Claims (6)

Storage means for storing various data files, operation means for operating various data files stored in the storage means, connection means for connecting to an external device via a communication line, and the connection means connected by the connection means In a portable terminal having transfer means for transferring various data files stored in the storage means to the external device in accordance with instructions from the external device,
Command receiving means for receiving a file operation command as an instruction from the external device;
Determining means for determining whether the operation of various data files stored in the storage means is based on the operating means or the command receiving means;
When the number of files in the current directory becomes zero by the operation of various data files, the current directory is not deleted when the determination unit determines that the file operation is based on the command reception unit, A portable terminal comprising: a directory management unit that deletes the current directory when the determination unit determines that the file operation is based on the operation unit. When the number of files in the current directory becomes zero by the file operation command received by the command receiving unit, the directory management unit deletes the directory when the transfer of the data file by the transfer unit is completed. The mobile terminal according to claim 1. When the number of files in the current directory becomes zero by the file operation command received by the command receiving means, further comprising holding means for holding a directory path indicating a directory in which the number of files is zero,
The directory management means includes:
2. The portable terminal according to claim 1, wherein the directory corresponding to the directory path is deleted by referring to the directory path held in the holding unit when the transfer of the data file by the transfer unit is completed. 4. The portable terminal according to claim 1, wherein the storage unit is a recording medium that is detachably attached to the portable terminal. An operation unit that operates various data files stored in a memory and a connection unit that connects to an external device via a communication line, and stores in the memory in accordance with an instruction from the external device connected by the connection unit A directory management method for a portable terminal having a function of transferring various data files to the external device,
A command receiving step for receiving a file operation command as an instruction from the external device;
A determination step of determining whether an operation of various data files stored in the memory is based on the operation unit or the command reception step;
When the number of files in the current directory becomes zero by the operation of various data files, the current directory is not deleted when it is determined in the determination step that the file operation is based on the command reception step, A directory management method comprising: a directory management step of deleting the current directory when it is determined in the determination step that the file operation is based on an operation of the operation unit. An operation unit that operates various data files stored in a memory and a connection unit that connects to an external device via a communication line, and stores in the memory in accordance with an instruction from the external device connected by the connection unit A file management program executed by a portable terminal having a function of transferring various data files to the external device,
A command receiving step for receiving a file operation command as an instruction from the external device;
A determination step of determining whether an operation of various data files stored in the memory is based on the operation unit or the command reception step;
When the number of files in the current directory becomes zero by the operation of various data files, the current directory is not deleted when it is determined in the determination step that the file operation is based on the command reception step, A directory management program that causes a portable terminal to execute a directory management step of deleting the current directory when it is determined in the determination step that the file operation is based on an operation of the operation unit.

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