JP3938161B2 - Data storage device and method for deleting information stored in data storage device - Google Patents

Description

  The present invention relates to a data storage device and a method for deleting information stored in the data storage device, and in particular, it is possible to reduce operations required by a user even when the capacity of the data storage device is increased. The present invention relates to a data storage device and a method for deleting information stored in the data storage device.

  Conventionally, a technique for recording data such as video and audio on a recording medium such as an optical disc has been disclosed. By utilizing such a technique, a user has recorded data of a favorite program on a recording medium. For a recording medium such as a hard disk recorder (hereinafter abbreviated as HDD recorder) that can overwrite data in a recording area in which data has been once recorded, the data can be deleted from the recording medium.

  Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique that enables chapter division of recorded data in a recording / reproducing apparatus. Patent Document 1 discloses a technique for deleting each divided chapter independently.

Patent Document 2 discloses a technique of dividing a chapter when CM (commercial) detection is performed when a television program is recorded in a recording / reproducing apparatus. According to such a technique, as shown in FIGS. 15A and 15B, a television program is recorded in alternating chapters in which the main part of the program and CM are continuous. In FIGS. 15A and 15B, serial numbers (chapter numbers) for a plurality of chapters recorded on the recording medium and the contents of the recorded data (the main part of the program or CM) are shown. Associated and described. When recording is performed in this manner, when the user desires to leave only the main part of the program as a recording medium, the user can achieve that desire by performing an operation of deleting the chapter corresponding to the CM. be able to.
JP 2002-152666 A JP 2000-354225 A

  Conventionally, when deleting data corresponding to a chapter, the user is required to perform an operation for deletion every time one chapter is deleted. For a user, if the number of chapters to be deleted is about several chapters, it is considered that such deletion is not a concern. However, in recent years, in view of the increase in the storage capacity of the recording / reproducing apparatus, when performing the above-described operation for deleting chapters required by the user, it is necessary to perform operations for deleting several tens of chapters. The situation that is done is also considered.

  The present invention has been conceived in view of such circumstances, and an object thereof is to make it easier for a user to perform an operation required for data deletion in a data storage device.

  A data storage device according to an aspect of the present invention assigns a number to a first storage unit that stores data of a plurality of chapters, and information about a storage position of each chapter in the first storage unit. A second storage means for storing; a receiving means for receiving an input from the outside; and a storage control means for updating the storage contents of the second storage means, wherein the storage control means is the first storage means. The chapters stored in the second storage means are classified into a first group having an even number and a second group having an odd number, and the receiving means receives the first and second groups. When the input of group designation information, which is information for designating one of the groups, is accepted and the group designation information is inputted to the accepting means, the second storage means is configured to store the group designation information. With fingers Update the information about the storage positions of the chapters belonging to the group to be deleted, and further reduce the information about the storage positions of the remaining chapters so as to pack the numbers assigned to the deleted chapters. It is characterized in that it is updated so as to be added and stored.

  A data storage device according to another aspect of the present invention assigns a number to a first storage unit that stores data of a plurality of chapters and a storage position of each chapter in the first storage unit. Second storage means for storing data, receiving means for receiving an input from the outside, and storage control means for updating the storage contents of the second storage means, wherein the storage control means comprises the first storage The chapters stored in the means are classified into a plurality of groups, the receiving means accepts input of group designation information that is information for designating one of the plurality of groups, and the accepting means specifies the group designation. When the information is input, the second storage means is updated so as to delete the information about the storage position of the chapter belonging to the group specified by the group specifying information. And features.

Further, in the data storage device according to the present invention, the storage control unit is configured to determine whether the chapter stored in the first storage unit is an even number or an odd number assigned by the second storage unit. It falls into.

  Further, in the data storage device according to the present invention, the storage control unit updates the second storage unit to delete the information on the storage position of the chapter, and then each remaining It is preferable to update the information about the storage position of the chapters so that the numbers assigned to the deleted chapters are filled with numbers and stored.

  A method for deleting information stored in a data storage device according to an aspect of the present invention is a method for deleting information stored in a data storage device that stores data of a plurality of chapters. A step of storing information about each storage position with a number, and a plurality of chapters stored in the data storage device, wherein the number assigned by the second storage means is an even number. And receiving an input of group designation information that is information for designating one of the first and second groups, and the group designation information includes: And deleting the information about the storage locations of the chapters belonging to the group designated by the group designation information, and the remaining chapters. Information about the storage location of the, so pack attached to the deleted chapter number, characterized in that it comprises a step of again denoted by storing numbers.

  In the data storage device according to the present invention, data of a plurality of chapters is stored in the data storage device, the plurality of chapters are divided into several groups, and the storage positions of the chapters are The information is deleted collectively for each group.

  As a result, the user can collectively delete information about a plurality of chapters. Therefore, even when data related to a plurality of chapters (information on the storage locations of chapters) is deleted, an operation required for the user to delete the data can be facilitated.

  According to the present invention, the plurality of chapters are grouped according to whether the number assigned to the chapter is an even number or an odd number.

  Thereby, in particular, in the case where the chapter for which the information about the storage position in the second storage unit is desired to be deleted and the chapter for which the information is not to be deleted are alternately arranged, the user needs to delete the data. The operation performed can be made easy.

  Note that the case where chapters to be deleted and chapters that are not to be deleted are arranged alternately may be based on the conventional technology as shown in FIG. Other cases are also conceivable. In other words, a video file shot for a long time as one chapter is divided into a plurality of chapters by the user, and the user can select between a point that seems unnecessary and a point that seems necessary. Regarding a plurality of chapters generated by dividing a chapter, it is considered that chapters that are to be deleted and chapters that are not to be deleted are arranged alternately. According to the present invention, a plurality of chapters generated by the user, in which a chapter that is desired to be deleted and a chapter that is not desired to be deleted are arranged alternately are required for the user when deleting the chapter. The operation performed can be made easy.

  Further, according to the present invention, even after the deletion of the information on the chapter storage position in the second storage means, the information on the remaining chapter storage position is again applied. Numbers are added anew so that consecutive numbers are assigned.

  Thereby, even after the deletion of the data related to the chapter, the chapter can be managed without a sense of incongruity.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a hard disk recorder 1 which is an embodiment of a data storage device of the present invention.

  The hard disk recorder 1 includes a CPU (Central Processing Unit) 10 and a hard disk drive (HDD) 11 that control the overall operation of the hard disk recorder 1.

  In the hard disk recorder 1, when the digital broadcast channel designation signal is supplied from the CPU 10, the tuner 14 receives the digital broadcast wave of the designated channel. At this time, the tuner 14 demodulates the received digital broadcast wave to obtain an MPEG (Moving Picture Experts Group) signal. The MPEG signal is recorded in the HDD 11 based on a command from the CPU 10. The digital broadcast wave received by the tuner 14 is decoded by the VIDEO decoder 13 and then output to an external monitor 20 and a speaker. When the data recorded on the HDD 11 is output to the monitor 20 and / or the speaker 21, the data recorded on the HDD 11 is decoded by the MPEG codec and output.

  The hard disk recorder 1 is driven by being supplied with electric power from an external power source (not shown). The power supply from the external power supply is controlled by the power supply unit 18.

  The hard disk recorder 1 receives information from the outside by operating various keys or the like provided on the front panel 15 or by receiving information transmitted from the remote controller 2 by an IR (Infrared) receiver 16. Is entered. Information input to the front panel 15 or the IR receiver 16 is sent to the CPU 10, and the CPU 10 executes a control operation of the hard disk recorder 1 based on the input information.

  FIG. 2 schematically shows a storage area defined in the hard disk of the HDD 11. In FIG. 2, the fact that a plurality of areas are defined in the hard disk 120 is expressed by dividing the areas. However, the size of each divided area and the amount of data constituting each area are represented by In the meantime, it is assumed that no direct proportional relationship is taken into consideration.

  Referring to FIG. 2, the hard disk includes a viewing data storage area 112 for storing program data for viewing on monitor 20 and speaker 21, and data for managing data stored in viewing data storage area 112. And a management data storage area 111 to be stored.

  FIG. 3 is a diagram schematically showing a part of the stored contents of the management data storage area 111. The contents of data stored in the management data storage area 111 will be described with reference to FIG.

  In the management storage area 111, for each program title (A, B) stored in the viewing data storage area 112, the chapter number and the recording start position and recording end position in the viewing data storage area 112 of each chapter are: Associated and stored. The recording start position is information for designating an address in the viewing data recording area 111, and means information for designating an address having the lowest value in the area where the corresponding chapter is stored. The recording end position is information for designating an address in the viewing data recording area 111 and means information for designating an address having the highest value in the area where the corresponding chapter is stored. In FIG. 3, for the sake of convenience, addresses are indicated using alphabets such as “AA01” and “AA02” and numbers.

  FIG. 3 shows information about the viewing data with the title “A” and the viewing data with the title “B” stored in the viewing data storage area. The viewing data titled “A” is composed of chapters 1 to N, and the viewing data titled “B” is composed of chapters 1 to M. In the present specification, the Nth chapter is referred to as “chapter N”. Therefore, the first chapter is called “chapter 1”.

  Further, for example, the chapter 1 of the viewing data titled “A” is stored in an area defined by address information “AA01” to “AA02” in the viewing data storage area 112. Then, the chapter 2 of the viewing data titled “B” is stored in an area defined by the address information “BB03” to “BB04” in the viewing data storage area 112.

  4 and 5 show flowcharts of a main routine executed by the CPU 10. Below, operation | movement of the hard-disk recorder 1 is demonstrated centering on operation | movement which CPU10 performs.

  When power is applied to the hard disk recorder 1, the CPU 10 first determines in step S1 (hereinafter, “step” is omitted) whether the front panel 15 or the IR receiver 16 has input information, If it is determined that there is, the process proceeds to S2.

  In S <b> 2, the CPU 10 determines whether or not the input content is a request for chapter editing. Chapter editing is a process for editing a chapter stored in the viewing data storage area 112. If the CPU 10 determines that the chapter editing is desired, the process proceeds to S3. On the other hand, if other measures are desired, an operation corresponding to the input process is executed in S5.

  In S <b> 3, the CPU 10 displays a “chapter editing screen” on the monitor 20. The chapter editing screen is a screen displayed when processing for editing a chapter is performed. Note that chapter editing is performed for each title. That is, if it is determined in S2 that the information for chapter editing is input, it means that the input of information for specifying the title to be edited is accepted. FIG. 6 shows an example of the chapter editing screen.

  Referring to FIG. 6, chapter editing screen 200 includes a chapter information display column 200A for displaying information for specifying each chapter of the target title, and a menu display column 250 for displaying a processing menu such as editing contents as buttons. And an explanation column 290 for displaying a specific effect of the menu currently selected in the menu display column 250 as an explanatory text. Note that the chapter editing screen 200 may be configured to display information for specifying the target title, such as the name of the target title.

  In the chapter information display column 200A, thumbnail images of the first frames of the chapters 1 to 9 are displayed as thumbnail images 201 to 209. The information shown in the chapter information display field 200A is not limited to a thumbnail image, but may be simply a character string for specifying a chapter such as “chapter 1” or “chapter 2”. Even if thumbnail images of each chapter are displayed, the thumbnail image is not necessarily limited to the first frame of each chapter. In the chapter information display field 200A, at least one of the thumbnail images 201 to 209 is always selected. FIG. 6 shows a state in which the thumbnail image 201 corresponding to “chapter 1” is selected. A thumbnail image corresponding to the selected chapter (thumbnail image 201 in FIG. 6) is displayed with a frame surrounded by a frame (shown as hatching in FIG. 6).

  The menu display field 250 displays buttons 251 to 256 corresponding to six menus of “move”, “copy”, “delete”, “odd chapter batch delete”, “even number chapter batch delete”, and “end editing”. . In the menu display field 250, one of the buttons 251 to 256 is always selected. FIG. 6 shows a state where the menu “move” is selected. A button corresponding to the selected menu (button 251 in FIG. 6) is displayed with its surroundings surrounded by a frame (shown as hatching in FIG. 6).

  In the explanation display column 290, a sentence explaining the effect when the menu selected in the menu display column 250 is executed is displayed. In FIG. 6, since the menu “move” is selected in the menu display field 250, in the explanation display field 290, “the chapter surrounded by the frame is designated as an effect when the menu is executed”. The text “Move to location” is displayed.

  Among the information for displaying the screens constituting the chapter editing screen 200, the images other than the thumbnail images 201 to 209 are constant regardless of the title to be processed. Information for displaying them is displayed in the management data storage area 111.

  When the CPU 10 displays the chapter editing screen 200 on the monitor 20, the CPU 10 extracts necessary data from the management data storage area 111, generates thumbnail images of the chapters, and combines them into the monitor 20. Send. The CPU 10 reads out the image data stored at the storage start position in the table as shown in FIG. 3 from the viewing data storage area 112, and generates a thumbnail image of the image data, whereby the thumbnail image of each chapter. Is generated.

  During the period when the chapter edit screen 200 is displayed, the CPU 10 executes any one of the menus displayed in the menu display field 250 as information input to the front panel 15 or the IR receiver 16. The input of the specified information is accepted. It is assumed that the CPU 10 executes a menu selected and designated to be executed by an input from the outside. The menu to be selected is changed, for example, by appropriately operating up / down keys provided on the front panel 15 or the remote controller 2. In response to the change of the menu to be selected, the CPU 10 appropriately changes the buttons to be displayed surrounded by a frame among the buttons 251 to 256. As for the input of information specifying execution, information specifying execution of the menu selected at that time is input by operating a determination key provided on the front panel 15 or the remote controller 2. Can be.

  Then, after displaying the chapter editing screen 200 in S3, the CPU 10 determines in S4 whether or not there is an input of information from the outside. If it is determined that there is an input, the process proceeds to S6.

  In S6, the CPU 10 determines whether or not information specifying execution of the “move” menu is input. If it is determined that the information has been input, the process proceeds to S7, and information different from the information is input. If determined, the process proceeds to S8. In S7, the chapter is moved according to the contents inputted thereafter, and the process is returned to S3. The “chapter movement” is a process of changing the chapter number (see FIG. 3) assigned to a specified chapter in the management data storage area 111. Further, during the period in which each menu including “move” is being executed, the CPU 10 can change the chapter to be processed based on information input from the user.

  In S8, the CPU 10 determines whether or not information designating execution of the “copy” menu has been input. If it is determined that the information has been input, the process proceeds to S9, and information different from the information has been input. If determined, the process proceeds to S10. In S9, after the chapter is copied according to the contents input thereafter, the process returns to S3. Note that “chapter duplication” is a process of duplicating the data of a specified chapter and storing it in a different storage location in the viewing data storage area 112 from the original storage location of the duplicated chapter. It is.

  In S10, the CPU 10 determines whether or not information specifying execution of the “delete” menu is input. If it is determined that the information is input, the process proceeds to S11, and information different from the information is input. If determined, the process proceeds to S12. In S11, after the chapter is deleted according to the contents input thereafter, the process returns to S3. Note that “deleting chapters” is processing for deleting information related to a specified chapter in the management data storage area 111.

  In S12, the CPU 10 determines whether or not information specifying execution of the “odd chapter batch deletion” menu has been input. If it is determined that the information has been input, the process proceeds to S13, and information different from the information is obtained. If it is determined that it has been input, the process proceeds to S14. In S <b> 13, the CPU 10 performs a process of collectively deleting information about chapters whose chapter numbers are odd in the management data storage area 111 as the odd-number chapter batch deletion process. The contents of the odd-number chapter batch deletion process will be described later with reference to FIGS.

  In S14, the CPU 10 determines whether or not information specifying execution of the “even chapter batch deletion” menu is input. If it is determined that the information is input, the process proceeds to S15, and information different from the information is obtained. If it is determined that it has been input, the process proceeds to S16. In S15, the CPU 10 performs a process of collectively deleting information about chapters whose chapter numbers are even in the management data storage area 111 as the even-number chapter batch deletion process. The contents of the even-number chapter batch deletion process will be described later with reference to FIGS.

  In S15, the CPU 10 determines whether or not information for specifying execution of the “end editing” menu has been input. If it is determined that the information has been input, the process returns to S1. On the other hand, if it is determined that information different from the information is input, the input information cannot be handled, and the process returns to S6 to wait for input of information again.

  FIG. 7 is a flowchart of a subroutine of odd-number chapter batch deletion processing in S13.

  The content of the odd-number chapter batch deletion process will be described below mainly with reference to FIG.

  When execution of the odd-number chapter batch deletion process is designated, the CPU 10 first frames the thumbnail images 201, 203, 205, 207, and 209 corresponding to the odd chapters in the chapter information display field 200A of the chapter editing screen 200 in S131. The information to be transmitted for display on the monitor 20 is changed so as to be displayed in a circle, and the process proceeds to S132. A chapter editing screen 200 displayed on the monitor 20 by the process of S131 is shown in FIG.

  In the chapter editing screen 200 shown in FIG. 8, a button 254 corresponding to the odd-number chapter batch deletion menu is displayed surrounded by a frame. This is because the specification of execution of the odd-number chapter batch deletion process is based on the assumption that the odd-number chapter batch deletion menu is selected.

  In the chapter editing screen 200 shown in FIG. 8, thumbnail images 201, 203, 205, 207, and 209 are displayed surrounded by a frame. This is because the odd-numbered chapters corresponding to these thumbnail images are chapters that are targets of the odd-number chapter batch deletion menu.

  Referring to FIG. 7 again, in S132, the CPU 10 ends the information on the odd-numbered chapter deletion or the odd-number chapter batch deletion menu for the front panel 15 or the IR receiver 16 and selects the menu. It is determined whether or not there is input of information for specifying to return to. If the CPU 10 determines that any information has been input, the CPU 10 executes a process according to the input information in S133. In other words, if the CPU 10 determines in S133 that the information specifying the deletion of the odd-numbered chapter has been input, the CPU 10 proceeds to S134 and determines that the information specifying the return to the menu selection is input (S3 (FIG. 4)). Return to (see).

  In S134, the CPU 10 displays on the monitor 20 a screen for confirming whether or not the odd-numbered chapters can be deleted at once (the confirmation screen for batch deletion), and proceeds to S135. The confirmation screen for batch deletion can be a screen including a message for confirming deletion, such as “Can I really delete?”, For example.

  In S <b> 135, the CPU 10 inputs information for confirming deletion of odd chapters or information for specifying that the odd chapter batch deletion menu is terminated and the menu selection is returned to the front panel 15 or the IR receiver 16. It is determined whether or not there was. If the CPU 10 determines that any of the information has been input, the CPU 10 executes processing according to the input information in S136. That is, if the CPU 10 determines in S136 that information for confirming deletion of odd-numbered chapters has been input, the process proceeds to S137, and if it is determined that information for specifying return to menu selection has been input, S3 (FIG. 4). Return to (see).

  In step S137, the CPU 10 updates the table (shown in FIG. 3) stored in the management data storage area 111 so as to delete information corresponding to the odd chapters, and then returns. The table update at this time will be described with reference to FIGS.

  FIG. 9 is a diagram partially showing information about the title A in the table stored in the management data storage area 111. 9A shows a state before the update in S137, and FIG. 9B shows a state after the update.

  FIG. 10 is a diagram showing the apparent correspondence between chapters and chapter numbers in the title to be processed. FIG. 10 (A) is before update, and FIG. 10 (B) is after update. Each state is shown.

  First, with reference to FIG. 9A, information about chapters 1 to 6 is shown in the table. The addresses at which chapter data are stored in the viewing data storage area 112 are AA01 to AA02 for chapter 1, AA03 to AA04 for chapter 2, AA05 to AA06 for chapter 3, and chapters. 4 is AA07 to AA08, Chapter 5 is AA09 to AA10, and Chapter 6 is AA11 to AA12.

  Then, when odd-numbered chapters are deleted from chapters 1 to 6, chapters 1, 3, and 5 are deleted.

  In such a case, as shown in FIG. 10A, chapters that are unnecessary portions and chapters that are necessary portions are alternately arranged. The chapters that are unnecessary portions are chapters that are deleted. Moreover, the chapters that are necessary parts are chapters that are not to be deleted.

  When the above update is performed, in the present embodiment, the chapter numbers are newly given to the chapters so as to pack the deleted numbers.

  As a result, when the above update is performed, in the management data storage area 111, as shown in FIG. 9B, the chapters in which data is stored in the addresses AA03 to AA04 which were the chapters 2 before the update are stored. Are numbered as chapters 1. The chapter number is changed because the chapter number before updating the table is deleted and the chapter number is filled. Similarly, a chapter in which data is stored in addresses AA07 to AA08 that were chapter 4 before the update is numbered chapter 2, and data is stored in addresses AA11 to AA12 that was chapter 6 before the update. These chapters are numbered chapter 3.

  That is, after the update, as shown in FIG. 10B, the chapter numbers are reduced by the number of deleted chapters.

  Note that when the table is updated in S137, the data in the viewing data storage area 112 of the chapter from which the information in the management data storage area 111 has been deleted need not be deleted. This is because if the information in the management data storage area 111 is deleted, the area in the viewing data storage area 112 corresponding to the deleted information can be overwritten, so it is considered unnecessary to delete it. However, in order to reliably delete the chapter data, the chapter data in the viewing data storage area 112 may be deleted at the same time when the table is updated in S137.

  FIG. 11 is a flowchart of a subroutine of even-number chapter batch deletion processing in S15.

  Hereinafter, the contents of the even-number chapter batch deletion process will be described with reference mainly to FIG.

  When execution of the even-number chapter batch deletion process is designated, first, in S151, as shown in FIG. 12, the CPU 10 displays thumbnail images 201, 203, corresponding to even-numbered chapters in the chapter information display field 200A of the chapter editing screen 200 as shown in FIG. The information transmitted to the monitor 20 for display is changed so that 205, 207, and 209 are displayed surrounded by a frame, and the process proceeds to S152.

  In the chapter editing screen 200 shown in FIG. 12, a button 255 corresponding to the even-number chapter batch deletion menu is displayed surrounded by a frame. This is because the designation of execution of the even-number chapter batch deletion process is based on the assumption that the even-number chapter batch deletion menu is selected.

  In the chapter editing screen 200 shown in FIG. 12, thumbnail images 201, 203, 205, 207, and 209 are displayed surrounded by a frame. This is because the even-numbered chapters corresponding to these thumbnail images are chapters that are targets of the even-numbered chapter batch deletion menu.

  Referring to FIG. 11 again, in S152, the CPU 10 ends the selection of the menu by ending the even-numbered chapter batch deletion menu or the information specifying the deletion of the even-numbered chapters with respect to the front panel 15 or the IR receiving unit 16. It is determined whether or not there is input of information for specifying to return to. If the CPU 10 determines that any of the information has been input, the CPU 10 executes processing according to the input information in S153. That is, if CPU 10 determines in S153 that information specifying deletion of even-numbered chapters has been input, the process proceeds to S154, and if CPU 10 determines that information specifying return to menu selection has been input, S3 (FIG. 4). Return to (see).

  In S154, the CPU 10 causes the monitor 20 to display a screen for confirming whether or not even-numbered chapters may be deleted at once (collective deletion confirmation screen), and proceeds to S155.

  In S <b> 155, the CPU 10 inputs information for confirming deletion of even-numbered chapters or information specifying that the even-numbered chapter batch deletion menu is terminated and the menu selection is returned to the front panel 15 or the IR receiver 16. It is determined whether or not there was. If the CPU 10 determines that any information has been input, the CPU 10 executes processing according to the input information in S156. In other words, if the CPU 10 determines in S156 that the information for confirming the deletion of the even-numbered chapter has been input, the CPU 10 proceeds to S157 and determines that the information for specifying the return to the menu selection has been input, S3 (FIG. 4). Return to (see).

  In step S157, the CPU 10 updates the table (shown in FIG. 3) stored in the management data storage area 111 so as to delete information corresponding to the even chapters, and then returns. The table update at this time will be described with reference to FIGS. 13 and 14. FIG.

  FIG. 13 is a diagram partially showing information about the title A in the table stored in the management data storage area 111. FIG. 13A shows a state before the update in S157, and FIG. 13B shows a state after the update. FIG. 14 is a diagram showing the apparent correspondence between chapters and chapter numbers in the title to be processed. FIG. 14 (A) is before update, and FIG. 14 (B) is after update. Each state is shown.

  First, with reference to FIG. 13A, information about chapters 1 to 6 is shown in the table. The addresses at which chapter data are stored in the viewing data storage area 112 are AA01 to AA02 for chapter 1, AA03 to AA04 for chapter 2, AA05 to AA06 for chapter 3, and chapters. 4 is AA07 to AA08, Chapter 5 is AA09 to AA10, and Chapter 6 is AA11 to AA12.

  Then, when even-numbered chapters are deleted from chapters 1 to 6, chapters 2, 4, and 6 are deleted.

  In such a case, as shown in FIG. 14A, chapters that are unnecessary portions and chapters that are necessary portions are alternately arranged. The chapters that are unnecessary portions are chapters that are deleted. Moreover, the chapters that are necessary parts are chapters that are not to be deleted.

  When the above update is performed, in the present embodiment, the chapter numbers are newly given to the chapters so as to pack the deleted numbers.

  Thus, when the update as described above is performed, in the management data storage area 111, as shown in FIG. 13B, the chapters in which data is stored in the addresses AA05 to AA06 which were the chapters 3 before the update are obtained. Are numbered chapter 2. The chapter number was changed because the chapter number before the table update was deleted and the chapter number was filled. Similarly, chapters whose data are stored at addresses AA09 to AA10 that were chapters 5 before the update are numbered chapters 3.

  That is, after the update, as shown in FIG. 14B, the chapter numbers are reduced by the number of deleted chapters.

  In the present embodiment described above, the chapters included in each title are grouped according to whether the number assigned to the chapter is an even number or an odd number. Then, the information in the management data storage area 111 regarding the chapters grouped in odd numbers is collectively deleted by the odd number chapter batch deletion processing. Moreover, the information in the management data storage area 111 regarding the chapters grouped into even numbers is deleted at once by the even chapter batch deletion processing.

  In the present embodiment, the chapters are grouped based on whether the chapter number in each title is an even number or an odd number, but the present invention is not limited to this. For example, in the management data storage area 111, when it is comprised so that the name of a chapter can be memorize | stored for every chapter, you may be comprised so that it may divide into a group based on the said name.

  In addition, an area for setting a predetermined flag for each chapter is provided in the management data storage area 111, and information on whether or not a predetermined flag is set for each chapter is displayed on the front panel 15 or IR. The reception unit 16 accepts the received data, and the CPU 10 performs processing for deleting the chapters for which the predetermined flag is set, or the predetermined chapter, instead of the odd-number chapter batch deletion processing and the even-number chapter batch deletion processing. It may be configured to execute processing for collectively deleting chapters for which no flag is set.

  Further, grouping of chapters may be performed based on conditions input to the front panel 15 or the IR receiver 16.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure which shows the structure of the hard-disk recorder which is one Embodiment of the data storage device according to this invention. It is a figure which shows typically the storage area defined in the hard disk of HDD of FIG. It is a figure which shows typically a part of memory content in the management data storage area of FIG. It is a flowchart of the main routine which CPU of FIG. 1 performs. It is a flowchart of the main routine which CPU of FIG. 1 performs. It is a figure which shows an example of the chapter edit screen which CPU of FIG. 1 displays on a monitor. FIG. 6 is a flowchart of a subroutine of odd-number chapter batch deletion processing of FIG. 5. FIG. It is a figure which shows an example of the chapter edit screen displayed on a monitor in the odd-number chapter collective deletion process of FIG. It is a figure for demonstrating the update of the table memorize | stored in the management data storage area in the odd-number chapter collective deletion process of FIG. It is a figure for demonstrating the update of the table memorize | stored in the management data storage area in the odd-number chapter collective deletion process of FIG. 6 is a flowchart of a subroutine of even-number chapter batch deletion processing in FIG. 5. It is a figure which shows an example of the chapter edit screen displayed on a monitor in the even-number chapter batch deletion process of FIG. It is a figure for demonstrating the update of the table memorize | stored in the management data storage area in the even-number chapter batch deletion process of FIG. It is a figure for demonstrating the update of the table memorize | stored in the management data storage area in the even-number chapter batch deletion process of FIG. It is a figure for demonstrating the technique which divides | segments a chapter in the conventional storage / reproducing apparatus.

Explanation of symbols

  1 hard disk recorder, 2 remote controller, 10 CPU, 11 HDD, 12 MPEG codec, 13 VIDEO decoder, 14 tuner, 15 front panel, 16 IR receiver, 18 power supply unit, 20 monitor, 21 speaker, 111 management data storage area, 112 viewing data storage area, 200 chapter edit screen, 200A chapter information display field, 201-209 thumbnail image, 250 menu display field, 251-256 button, 290 description display field.

Claims (4)

First storage means for storing data of a plurality of chapters;
Second storage means for storing information about the storage position of each chapter in the first storage means with a number;
A receiving means for receiving external input;
Storage control means for updating the storage content of the second storage means,
The storage control means includes
Classifying the chapters stored in the first storage means into a first group that is an even number and a second group that is an odd number assigned in the second storage means;
Allowing the accepting means to accept input of group designation information which is information for designating one of the first and second groups;
When the group designation information is input to the accepting means, the second storage means is updated so as to delete information on the storage positions of chapters belonging to the group designated by the group designation information, Further, the data storage device updates the information on the storage positions of the remaining chapters so that the numbers assigned to the deleted chapters are added and stored so that the numbers are added. First storage means for storing data of a plurality of chapters;
Second storage means for storing information about the storage position of each chapter in the first storage means with a number;
A receiving means for receiving external input;
Storage control means for updating the storage contents of the second storage means,
The storage control means
Classifying the chapters stored in the first storage means into a plurality of groups;
Allowing the accepting means to accept input of group designation information which is information for designating one of the plurality of groups;
When the group designation information is input to the accepting means, the second storage means is updated so as to delete information on the storage positions of chapters belonging to the group designated by the group designation information ,
The data storage device, wherein the storage control unit classifies the chapters stored in the first storage unit into groups depending on whether the number assigned by the second storage unit is an even number or an odd number . The storage control unit has updated the second storage unit so as to delete information about the storage position of the chapter, and further deleted information about the storage position of each remaining chapter. The data storage device according to claim 2 , wherein the number added to the chapter is updated so that the number is added again and stored so as to be packed. A method of deleting information stored in a data storage device that stores data of a plurality of chapters,
Storing information about each storage position of the plurality of chapters with a number;
The plurality of chapters stored in the data storage device are classified into a first group having an even number and a second group having an odd number assigned by the second storage means, and the first and first groups Receiving an input of group designation information that is information for designating one of the two groups;
Deleting the information about the storage locations of chapters belonging to the group designated by the group designation information when the group designation information is input;
Deleting the information stored in the data storage device, comprising storing the information about the storage position of each remaining chapter by adding a number to the number so as to pack the number assigned to the deleted chapter. how to.

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