JP3822916B2 - Data management method using memory provided in recording medium cartridge and recording medium cartridge thereof - Google Patents

Description

[0001]
[Industrial application fields]
  The present inventionThe present invention relates to a data management method using a memory provided in a recording medium cartridge and the recording medium cartridge. Specifically, in order to more efficiently manage and search recording information and the like recorded in the memory,The present invention relates to an improvement in the data structure of recorded contents recorded in a memory.
[0002]
[Prior art]
  In the conventional recording medium cartridge, the thickness, type, length of the magnetic tape provided in the recording medium cartridge is determined by a plurality of detection holes (hereinafter referred to as recognition holes) provided in the corner of the back surface of the cassette. The tape grade etc. could be discriminated.
[0003]
  However, due to the downsizing of today's cassettes, there is a limit to the physical location to provide a recognition hole, and the number of recognition holes is limited in order to obtain recording information on magnetic tape, etc. You can't get the amount.
[0004]
In such a recording medium cartridge, the magnetic tape is fast-forwarded or rewound based on the recorded contents, and if the required recording position is not reached, the contents recorded on the magnetic tape are confirmed. I can't. In addition, there is a problem that it takes time to access the magnetic tape to the required recording position.
[0005]
  For this reason, a recording medium cartridge in which a memory for recording recording information or the like is separately incorporated in the recording medium cartridge so that recording contents and information about the recording medium cartridge can be recorded is disclosed in, for example, USP 4,338,644 (Staar S. A.), USP 4,383,285 (Staar SA).
[0006]
[Problems to be solved by the invention]
  However, in such a recording medium cartridge, the contents recorded on the tape and the contents of the memory are in one-to-one correspondence, and management of data in the memory is important. Conventionally, however, this memory management has no regularity.
[0007]
  The present invention has a problem that the contents of data recorded in the memory must be assembled by a predetermined method to solve the management operation of the recording information recorded in the recording medium cartridge.
[0008]
[Means for Solving the Problems]
  In order to solve the above-described problems, a data management method using a memory and a recording medium cartridge provided in the recording medium cartridge according to the present invention are configured as follows.
(1) A data management method using a memory provided in a recording medium cartridge includes a memory provided in a recording medium cartridge for storing a tape as a recording medium, and information for managing and controlling the data recorded on the tape. A method of managing the data stored in the memory, wherein the data structure stored in the memory for managing the data recorded on the tape includes item data formed with a predetermined byte length and a predetermined data length Arbitrary data formed in byte length is made into a fixed-length pack as a minimum data unit, and the item data in the minimum data unit is divided into an upper bit group of a large item and a lower bit group of a small item, and the large item Has multiple value values, each for one value value, all combinations of the bits of the small item The number of packs equal to the number of packs can be generated, and hierarchical associations between packs can be performed using the plurality of value values, so that the packs are hierarchically associated with the memory in order.To rememberIt is.
[0009]
(2) The pack as the minimum data unit includes the item data of 1 byte, the arbitrary data of 4 bytes, the upper bit group of the large item being 4 bits, and the lower bit group of the small item. Is formed by 4 bits, 16 packs of 4 bit combinations of the small items are formed for one value value of the large items. A data management method using a memory provided in a medium cartridge.
(3) When it is the first tape that can be recorded arbitrarily by the user, the item pack having at least the recording start position and the recording end position of the data recorded on the first tape is stored in the highest hierarchy. The recording medium cartridge according to (1) has a two-layer structure in which a program pack having at least the time code of the program recorded on the first tape is a lower-layer pack. A data management method using a provided memory.
(4) When the data is the second tape on which data is recorded in advance, the item pack having at least the recording start position and the recording end position of the data recorded on the second tape is the highest item. A chapter pack having at least a time code designating a group of data recorded on the second tape as a hierarchy pack is set as a lower hierarchy of the item pack, and an area recorded on the second tape 3. A data management method using a memory provided in a recording medium cartridge according to (1), wherein a part pack having at least a time code designating each part has a three-layer structure as a lower layer of the chapter pack.
[0010]
(5) On the other hand, the recording medium cartridge includes a tape as a recording medium, a storage case for storing the tape, a memory for storing information for managing and controlling data recorded on the tape, and recording / reproducing. A recording medium cartridge having contact means for contacting a connector provided in the apparatus, wherein a data structure stored in the memory for managing data recorded on the tape has a predetermined byte length. The formed item data and arbitrary data formed with a predetermined byte length are packed in a fixed length to form a minimum data unit, and the item data in the minimum data unit is the upper bit group of a large item and the lower bit group of a small item The large item has a plurality of value values, and for each value value, all of the bits of the small item are The number of packs equal to the number of all the combinations can be generated, and the hierarchical association between packs is performed using the plurality of value values, so that the packs are hierarchically related to the memory in order.RememberedIt is.
(6) The pack as the minimum data unit is formed by 1 byte of the item data and 4 bytes of the arbitrary data, the upper bit group of the large item is 4 bits, and the lower bit group of the small item is 4 bits. The recording medium cartridge according to (5), wherein 16 packs of 4-bit combinations of the small items are formed for one value value of the large item.
(7) When it is the first tape that can be arbitrarily recorded by the user, the item pack having at least the recording start position and the recording end position of the data recorded on the first tape is stored in the highest hierarchy. The recording medium cartridge according to (5), wherein the pack has a two-layer structure in which a program pack having at least the time code of the program recorded on the first tape is a lower-layer pack.
(8) When the data is the second tape on which data is recorded in advance, the top item pack having at least a recording start position and a recording end position of the data recorded on the second tape is the top item. A chapter pack having at least a time code designating a group of data recorded on the second tape as a hierarchy pack is set as a lower hierarchy of the item pack, and an area recorded on the second tape (3) The recording medium cartridge according to (5), wherein a part pack having at least a time code for designating each part has a three-layer structure having a lower layer of the chapter pack.
[0011]
[Action]
  In this way, on the premise that the memory provided in the recording medium cartridge is used, a fixed-length pack consisting of item data formed with a predetermined byte length and arbitrary data formed with a predetermined byte length is stored as the minimum data. As a unit, this item data is divided into an upper bit group as a large item and a lower bit group as a small item, and a pack corresponding to all combinations of small item bits for one value value of a large item is formed. At the same time, it is possible to divide the data recorded on the tape into groups such as genres by performing hierarchical association of packs with value values of large items and storing them in memory in order in pack units. Therefore, the tape can be easily managed and operated.
[0012]
  Further, by collecting a plurality of recording program data into one group and recording information about the group in the memory, it is possible to easily search and refer to the recording contents or classify the recording contents.
[0013]
【Example】
  In the present inventionA data management method using a memory provided in the recording medium cartridge and an embodiment of the recording medium cartridge will be described with reference to the drawings.
First, a data management method using a memory provided in a recording medium cartridge, which is provided in a recording medium cartridge that stores the recording medium, stores information for managing and controlling data recorded on the recording medium. The data recorded on the recording medium is managed by the memory, and the structure is unified in a pack system with a fixed-length pack as the minimum data unit, and data that associates the hierarchy is assigned to each pack The packs are associated with each other from the upper level to the lower level.
As shown in FIG. 26, the specific pack structure is composed of a fixed length of 5 bytes, the first byte (PC0) is item data (ITEM) 29, and the remaining 4 bytes (PC1, PC2, PC3, PC4) is arbitrary data (DATA) 30.
The item data 29 is composed of 8 bits, and a group of the upper 4 bits is called a large item 31.
For this one large item 31, 16 types of packs can be prepared using the small items 32 of the lower 4 bit group. Furthermore, the bit allocation of the upper bit group of the large item 31 also represents a hierarchy, with the younger number being the upper hierarchy. For example, as shown in FIG. 27, if the high-order bit group is “0001”, it represents a group name “title” (referred to as title pack), and if it is “0010”, the group name “chapter” (referred to as chapter pack). "0011" represents a group name "part" (referred to as part pack), and "0100" represents a group name referred to as "program" (referred to as program pack). Then, the “title” of this group name is higher than the other program names.
Here, the “title” is a concept indicating the entire magnetic tape portion of the cassette tape. The title start position is the position where recording is actually started, and the title end position is the final recording position on the tape.
As shown in FIGS. 8 and 27, the hierarchization by the group name is recorded from the beginning to the end of the user tape (first tape) created by arbitrarily recording the user and movies. Hierarchical structure differs depending on the soft tape.
In the case of a user tape, the first hierarchy is “title” (upper bit group; “0001”), and the second lower hierarchy is “program” (upper bit group; “0100”).
In the case of a soft tape (second tape), the first layer is “title” (upper bit group; “0001”), and the second lower layer is “chapter” (upper bit group; “0010”). The third hierarchy as a lower hierarchy of the second hierarchy is “part” (upper bit group; “0011”).
In this way, the hierarchization is set in advance by the user tape and the soft tape, and arbitrary data is designated by a combination of the upper bit group and the lower bit group of the large item.
[0014]
Next, storing actual recorded data on the user tape in the memory in the pack format will be described.
The pack on the user tape is composed of two layers, the first layer is a title pack and the second layer is a program pack. Among them, as shown in FIG. , The recording start point (lower bit group; “1010”, PROGRAM START (time code 2)) and the recording end point (lower bit group; “1110”, PROGRAM END (time code) recorded and recorded on the tape by the user. An area for recording 3)) is provided, which represents a physically recorded position on the tape, which is the basic data structure 1 in the embodiment.
As shown in FIG. 1B, the recording start point and the recording end point may be represented by a track No. In this case, the recording start point (lower bit group; “1011”, PROGRAM START (track number 2) ')), The recording end point (lower bit group; "1111", PROGRAM END (track number 3')) is a recording area, and in the embodiment, this is the basic data structure 1 '.
[0015]
  This basic data structure 1, 1 'As already mentioned, as shown in Figure 2,Recording recorded at an arbitrary specific position (hereinafter referred to as an area) 7 of a magnetic tape, which is a recording medium 6 wound around and stored in both reels 5 and 5 in a storage case 4a constituting the recording medium cartridge 4. This corresponds to the start point 8 and the recording end point 9.
  The recording medium cartridge 4 has a structure including a memory 4c having a contact 4b for recording recording information by connecting to a connector of a recording / reproducing apparatus at an appropriate position.
[0016]
  The size of the area 7 may be one frame, or one program or movie program may be divided into one segment, and can be determined to an arbitrary size.
[0017]
  The basic data structure 1 can be expanded by adding arbitrary data, that is, by increasing the number of packs in the same hierarchy.
  That is, as shown in FIG. 3, by expanding the pack in which the program name 10 is added to the pack consisting of the time code 2 of the recording start point and the time code 3 of the recording end point constituting the basic data structure 1, for example, a movie It is possible to add a title or the like. The hierarchy of both packs is a pack of “program” (upper bit group; “0100”), and the program hierarchy of the pack of time code 2 is (upper bit group;“0100”, Lower bit group; “1010”), and the program hierarchy of the pack of time code 3 is (upper bit group;“0100”, Lower bit group; “1110”, the program hierarchy of the pack of program name 10 is (upper bit group;“0100”, Lower bit group; “1001”).
[0018]
  Further, as shown in FIG. 4, by adding a program number 11, a program name 10, and a date 12 to the time code 2 of the recording start point and the time code 3 of the recording end point constituting the basic data structure 1, for example, a program Necessary arbitrary data such as “Program 1” in the number 11, “Overseas travel” in the program name, and “May 5, 1992” in the date 12 can be appropriately added.
  When expressed as a pack, the hierarchy is a program pack of a program (upper bit group; “0100”), and the program hierarchy of a pack of time code 2 is (upper bit group; “0100”, lower bit group; “1010”) The program hierarchy of the pack of time code 3 is (upper bit group; “0100”, lower bit group; “1110”, and the program hierarchy of the pack of program name 10 is (upper bit group; “0100”, lower bit group; “ 1001 "), the program layer of the pack of date 12 is (upper bit group;" 0100 ", lower bit group;" 0011 ").
[0019]
  Further, in the description based on FIGS. 3 and 4, character data is added. However, as shown in FIG. 5, the time code 2 at the recording start point and the time code 3 at the recording end point constituting the basic data structure 1 are added. Program name 10 and image data 13 can be added. Thus, not only character data but also arbitrary data such as image data, audio data, computer program data, and protection information such as COPY RIGHT can be added. In the case of FIG. 5, the case where image data 13 for use in content search is added is shown.
  The pack structure in this case is the same program hierarchy (upper bit group; “0100”), and the program hierarchy of the pack of time code 2 is (upper bit group; “0100”, lower bit group; “1010”). The program hierarchy of the pack of time code 3 is (upper bit group; “0100”, lower bit group; “1110”, and the program hierarchy of the pack of program name 10 is (upper bit group; “0100”, lower bit group; “ 1001 "), the program hierarchy of the pack of the image data 13 is (upper bit group;" 0100 ", lower bit group;" 0011 "), and any arbitrary bits designated by the upper bit group and the lower bit group. Data is specified, and the data becomes time code, program name, and image data.
[0020]
  Next, the structuring of the pack based on the basic data structure 1 shown in FIG. 1 will be described. That is, when recording is actually performed on the magnetic tape that is the recording medium 6,A pack consisting of the basic data structure 1 is also accumulated.
[0021]
  For example, as shown in FIG. 6, when a plurality of programs 1, 2, and 3 are recorded on the tape, they are composed of packs (group names; programs) in the same hierarchy.
The first program 1 includes a pack of time code TC1 at the recording start point, a pack of time code TC2 at the recording end point, and a pack of program name 1 as additional data.ThreeAnd is stored in the memory.
  The second program 2 is composed of a pack of time code TC3 at the start of recording, a pack of time code TC4 at the end of recording, a pack of program name 2 as additional data, and a pack of date. To be recorded.
  Similarly, the third program 3 is composed of three packs: a pack of time code TC5 at the recording start point, a pack of time code TC6 at the end of recording, and a pack of program name 3 as additional data. To be recorded.
[0022]
  As shown in FIG. 7, the recording state on the tape corresponding to such memory contents is as follows: time code TC1 / program 1 / time code TC2 / time code TC3 / program 2 / time code TC4 / time code TC5 / program 3 / Time code TC6 /.. The programs 1, 2, 3,... Here may be actual recorded data or unrecorded portions. In the case of this unrecorded portion, only the basic data structure 1 is configured as a pack and recorded in the memory.
[0023]
  Also, as shown in FIG. 6 and FIG. 7 described above, the first to third programs can be grouped together in a title hierarchy at a higher hierarchy of the program hierarchy, for example, “drama”. You can name it.
[0024]
  Here, the hierarchical structure of the above-described soft tapes such as movies and music and user tapes recorded and used by general users will be described again with reference to FIG. The soft tape has three hierarchies, and there are three hierarchies: a title hierarchy 14, a chapter hierarchy 15, and a part hierarchy 16. The chapter hierarchy 15 is a hierarchy for grouping a plurality of part hierarchies 16, and the title hierarchy 14 is a hierarchy for grouping a plurality of chapter hierarchies 15.
[0025]
  On the other hand, the user tape is provided with two layers, a title layer 14 and a program layer 17. The title hierarchy 14 is a hierarchy for grouping a plurality of programs. Note that the number of layers can be increased as necessary.
[0026]
  FIG. 9 shows a data structure of a user tape hierarchized as an example. The data in the memory from the root 18 is divided into recording medium information 19 and recording content information 22 recorded on the tape.
[0027]
  The recording medium information 19 is information relating to the recording medium cartridge itself, and is expressed in a pack structure. A common ID 20 and arbitrary data 21 are recorded. For example, the common ID 20 includes a tape thickness 20a and a tape type 20b. , Tape length 20c, tape grade 20d, and manufacturer 20e are recorded, and optional data 21 includes the date of manufacture and lot number. Other arbitrary information is recorded.Each of these common IDs 20 is composed of a pack. For example, if the length of the tape is 20c, it can be specified by (upper bit group; “0000”, lower bit group; “0001”).
[0028]
  The recorded content information 22The title pack and the program pack are composed of two layers of packs. The title pack of the highest layer 23 is composed of the cassette title 23a and the cassette number 23b, and all the recording media information 19 and the pack are recorded. Present in the media cartridge.
[0029]
  In the lower hierarchy of the title pack of the highest hierarchy 23 of the recorded content information 22, a hierarchical structure composed of program packs of the program hierarchy 17 is formed.
  The title pack is composed of a cassette title 23a pack and a cassette No 23b pack, each of which is an upper bit group;"0000", Lower bit group; “1010”, “0101”, and there is also a pack of title layers 14 of “movie 1” and “movie 2”. A program pack of program hierarchy 17 having program names 1 to 3 exists in a lower hierarchy of the pack of title hierarchy 14 of “movie 1”, and programs 1 to 4 are provided in a lower hierarchy of title hierarchy 14 of “movie 2”. There is a program pack of level 17.
[0030]
FIG. 10 shows a memory address when the two-layer pack of title and program shown in FIG. 9 is stored in the memory.The common ID 20 and the arbitrary data 21 which are the recording medium information 19 from the smaller memory addressIs recorded, and thereafter, recorded content information 22 composed of a two-layer pack consisting of a title and a program is recorded.
In the pack of the recorded content information 22, the program pack data of the program hierarchy 17 belonging to the lower hierarchy of the pack of the title hierarchy 14 is recorded after the title pack of the title hierarchy 14. That is, the program pack data of the program hierarchy 17 belonging to the title hierarchy 14 of the “movie 1” such as the program 1, the program 2, and the program 3 is recorded after the title pack data of the title hierarchy 14 of the “movie 1”. . After this, the title pack data of the title hierarchy 14 of “movie 2” is recorded again, and then the lower hierarchy of the title pack of the title hierarchy 14 of “movie 2” such as program 1, program 2, program 3, and program 4 Program pack data of the program hierarchy 17 belonging to is recorded.
FIG. 10 shows the case of the user tape, but the same applies to the soft tape. In the case of the soft tape, the titles, chapters, and parts are stored in the memory in the order of the packs. Will be.
[0031]
  FIG. 11 shows a data structure of a hierarchized user tape as another example.The difference from the data structure shown in FIG. 9 is that the title pack 14 has the time code 2 of the recording start point and the time code 3 of the recording end point as title pack data of the title layer 14.That is, as data of the title layer 14 of “movie 1”, TC1, which is the time code 2 of the recording start point of the program layer 17, the program layer 17 of the program 3, and the time code 3 of the recording end point belonging thereto. It has a certain TC6. Further, as data of the title layer 14 of “movie 2”, TC7 which is the time code 2 of the recording start point of the program layer 17, the program layer 17 of the program 4, and the time of the recording end point belonging thereto. It has TC14 which is code 3.
[0032]
  In the above description, the data structure of the program hierarchy divided by the recorded contents has been described. However, a directory that can be arbitrarily created by the cassette user is provided. This directory can be used, for example, when recording a location that the user likes (hereinafter referred to as a highlight scene) or a location that the user wants to reproduce quickly after recording.
[0033]
  That is, as shown in FIG. 12, the highlight scene 24 is newly added to the title hierarchy 14 having “movie 1” and “movie 2” in the recorded content information 22.Title pack for title hierarchy 14Create
[0034]
  Then, in this highlight scene 24, for example, the time code 2 at the recording start point and the time code 3 at the recording end point are recorded for the scene in “movie 2”, and the one scene is further recorded as title image data. 25 can be registered. Any number of highlight scenes 24 can be registered.
[0035]
  In addition, there are custom files that can be created later by the user. That is, as shown in FIG.Title hierarchy title packIf there is a program pack of the program hierarchy of 10 programs 1 to 10 below and the programs 1 to 10 are switched in order and played back, the playback order and program selection information should be recorded in the custom file 25 in advance. Can do.
[0036]
  The user refers to the custom file 25 in the same hierarchy as the program hierarchy 17 of the existing programs 1-10.New directory program pack1 can be set, and the reproduction order can be set as appropriate, such that the first is the program 2, the second is the program 10, and the third is the program 4.
[0037]
  Therefore, when the user selects the custom file 25 at the time of reproduction, only three programs can be selected and reproduced selectively from the ten programs in the order of program 2 → program 10 → program 4.
[0038]
  Next, the data structure of the recording medium cartridge in which no recording is performed on the recording medium cartridge, that is, the recording medium cartridge that has been purchased and is not operated for recording is recorded in the lower hierarchy of the root 18, as shown in FIG. It is composed of medium information 19 and recorded content information 22. The recording medium information 19 is a title hierarchy composed of a common ID 20 and arbitrary data 21, and the recorded content information 22 is in the form of so-called unnamed 26. There is a title pack of title layers for the entire recording medium cartridge.
[0039]
  As shown in FIG. 15, the operation in the case of a so-called unregistered cassette can create a hierarchical structure by a predetermined procedure. Hereinafter, it demonstrates in order.
[0040]
(1) First, a purchased tape cassette, which is an unregistered recording medium cartridge 4, is inserted into a recording / reproducing apparatus (S1).
[0041]
(2) The recording / reproducing apparatus displays the recorded contents unless the tape cassette is unregistered, waits for an instruction from the user's remote controller, etc., and locates the position appropriately according to the designation of the title / program described above. Recording is possible (S2 to S7).
[0042]
(3) If it is an unregistered tape cassette, it waits for an instruction from the remote controller or the like from the user, and recording is possible by a recording operation (S2, S8, S9).
[0043]
(4) When this recording starts, a new directory is created, the time code 2 at the recording start point is recorded, and recording is continued until a stop or pause operation is performed (S12 to S13).
[0044]
(5) If a stop or pause operation is performed, the time code 3 of the recording end point is recorded and the process ends (S14 to S16).
[0045]
(6) In steps S5 and S6, the designated directory is cued, and playback is started when the playback button is pressed (S10 to S11). This makes it easy to search for the scene you want to play back.
[0046]
  In this way, by repeating the operations of steps S7 to S10, the title of the recorded content information 22 is in the form of the name unset 26 based on the basic data structure 1 described with reference to FIG. A hierarchical data structure having a title hierarchy is constructed.
[0047]
  Here, as shown in FIG. 16, the user is in the title hierarchy whose title is unnamed 26, and the three programs of the program hierarchy 17 (time code TC1, TC2, time code TC3, TC4, and time code). A procedure for creating a hierarchy in which TC5 and TC6) are combined into one and naming it “drama 1”, for example, will be described.
[0048]
(1) First, as shown in FIG. 17, a new directory 27 pack is created in the program hierarchy below the program name unset 26 in the recorded content information 22.
[0049]
(2) Then, as shown in FIG. 18, the name “Drama 1” is given to the directory 27 created under the title name unset 26 of the recorded content information 22.
[0050]
(3) Next, as shown in FIG. 19, the basic structure (time code TC1, TC2, time code TC3, TC4, time code TC5, TC6) under the directory 27 named “Drama 1”. ) Three programs.
[0051]
(4) Here, if the user selects “Drama 1” in the directory 27 and performs the next recording, a new directory 28 is created under the title “Drama 1” as shown in FIG. Provided, and TC7 of time code 2 at the recording start point is recorded. As shown in FIG. 21, the new directory 28 created in this way can be put together into a new directory 29 as “drama 2” like “drama 1” in the directory 28. In this case, the basic structure of the program hierarchy 17 below the “drama 1” hierarchy of the directory 27 is composed of three programs, and “drama 2” of the directory 28 is composed of two programs.
[0052]
(5) Finally, as shown in FIG. 22, by inputting the title of the entire recording medium cartridge and the cassette number into the unset name 26 of the recording content information 22, a data structure having a hierarchical structure composed of titles and program hierarchies. Can be stored in memory.
[0053]
  Although the user tape has been described with reference to FIGS. 15 to 22, the case of a soft tape will be described next. In the case of a soft tape, it is recorded continuously from the beginning to the end.
[0054]
  For example, as shown in FIG. 23, a title relating to the entire recording medium cartridge called “movie” is recorded in the highest hierarchy of the recorded content information 22, and two title hierarchies 14 “main part” and “advertising advertisement” are below it. It is recorded. Five chapters are recorded in the chapter layer 15 under the “main part” of the title layer 14, and two part layers 16 are recorded under the chapter 1. With such a soft tape, it is possible to make a soft tape with an arbitrary number of chapters and parts by simply rewriting the data in the memory.
[0055]
  Further, as shown in FIGS. 24 and 25, for example, a time code group in which only a point portion is extracted from the recorded contents of two hours recorded on the magnetic tape as the recording medium 6 is packed in one directory. By doing so, it is possible to reproduce the entire content in 30 minutes, for example, even if the content is recorded for 2 hours.
[0056]
  That is, the contents recorded on the magnetic tape are grouped into, for example, chapters 1 to 4 and the title layer 14 is named “main part”. Then, a time code of a part to be digested from each chapter, for example, time codes TCA, TCB, time codes TCC, TCD, and time codes TCE, TCF are recorded. A title hierarchy 14 in which these chapter hierarchies 15 are grouped together is created and named “Digest”. In this way, even for a magnetic tape having a recording content of 2 hours, by selecting “Digest” in the title layer 14 at the start of playback, only the recording portion that is a key point can be obtained without playing back all the recorded content. Can be played.
[0057]
  Here, the pack already described, that is, the pack used when actually recording in the memory in a tree structure will be described in more detail.Data is recorded in a memory 4c provided in the recording medium cartridge 14 using a fixed-length pack. The pack is formed of 5 words per word. Therefore, as shown in FIG. 26, the first byte (PC0) of these 5 bytes is used as item data (ITEM) 29 indicating the data content. Further, a format of 4 bytes (PC1 to PC4) following the item data 29 is determined, and arbitrary data 30 is provided according to this format.
[0058]
  In this pack structure, the item data 29 is divided into upper and lower 4 bits, the upper 4 bits (upper bit group) are called the large item 31, and the lower 4 bits (lower bit group) are called the small item 32. The upper 4-bit large item 31 is, for example, data indicating the use of subsequent data. On the other hand, the lower 4 bits of the small item 32 is, for example, data indicating the specific content of the subsequent data. Here, a maximum of 16 kinds of large items 31 can be provided. Further, a maximum of 16 small items 32 can be provided for each large item 31.
[0059]
  When this large item 31 is used on a soft tape, as shown in FIG. 27, a hierarchy of title (0001), chapter (0010), and part (0011) is arranged, and when used on a user tape. , Title (0001) and program (0100) packs. The large item 31 also shows a hierarchy so that the hierarchy of the memory 4c can be understood. That is, if the upper 4 bits of the large item 31 in the first byte of the pack are (0011), it is understood that the pack is a part and is lower than the program (0100) in the hierarchy below the title (0001). It turns out that it is the upper hierarchy.
[0060]
  If the large item 31 is the title (0001) and the small item 32 is (0100), the data 30 indicating the specific contents stores the cassette number. If the small item 32 is (1110), the title is displayed. End data 30 is stored. As shown in FIG. 10 described above, these packs are stored in a state of being packed in order from the smallest memory address of the memory 4c.
[0061]
  Next, a recording medium cartridge having a data structure stored in the above-described memory will be described.
  As schematically described with reference to FIG. 2, the recording medium cartridge 4 includes a recording medium 6 that is a magnetic tape, a storage case 4a that stores the recording medium 6, and management of information recorded on the recording medium 6. It has a structure including a memory 4c for storing information for performing control and a contact 4b for connecting to a connector provided in the recording / reproducing apparatus.
[0062]
  As shown in FIG. 28, the recording medium cartridge 4 having such a structure is mounted on a recording / reproducing apparatus 33 to record and reproduce image and audio data on a recording medium 6 that is a magnetic tape, and to store a memory. The contact 4b connected to 4c and the connector 34 on the recording / reproducing apparatus 33 side are connected, and the recording information can be stored in the memory 4c based on the data structure described above.
[0063]
  That is, the data structure of the recording medium cartridge 4 incorporating the memory 4c is information indicating the recording start position and recording end position of the content recorded on the recording medium 6 that is a magnetic tape, so-called information.Pack with time codeIn the memory 4c, a pack as a minimum data unit recorded in the memory 4cHierarchical packs that combine multiple minimum data units into one A number of packs are combined to form a hierarchical structure.
[0064]
  On the other hand, as shown in FIG. 28, the recording / reproducing apparatus includes a tuner unit 35 that receives broadcast signals, a video signal processing unit 36 that records and reproduces video signals and audio signals, and V of the signals received by the tuner unit 35. A vertical blanking interval (hereinafter referred to as VBI) decoder unit 37 for demodulating blanking information, and a μ-COM unit 38 which is a microcomputer for storing character information related to recorded contents in the memory 4c of the recording medium cartridge 4, The output side of the tuner unit 35 is connected to the input side of each of the video signal processing unit 36 and the VBI decoder unit 37, and the output side of the video signal processing unit 36 is connected to the recording medium 6 in the recording medium cartridge 4 although not shown. Connected to the recording and playback head for recording and playback, the output side of the VBI decoder unit 37 is μ- Connected to the input side of the OM unit 38, the output side of the μ over COM unit 38 is connected to a connector 34 for connecting the contact 4b which is connected to the memory 4c of the recording medium cartridge 4.
[0065]
  By attaching the recording medium cartridge 4 to the recording / reproducing apparatus 33 configured as described above, data such as characters can be stored in the memory 4 c of the recording medium cartridge 4.
[0066]
  There are two methods for recording data such as characters in the memory 4c of the recording medium cartridge 4, and one of them is that character information such as a title related to the broadcast signal is multiplexed with V blanking of the broadcast signal. In other cases, the information is used, and the other method is input using a keyboard or the like. The description is divided into the following items.
[0067]
(1). When character information such as a title related to a broadcast signal is multiplexed with V blanking of the broadcast signal, and the information is used.
  Character information such as a program name and a cast is automatically written in the memory 4c of the recording medium cartridge 4 in accordance with timer recording reservation and recording operation of the recording / reproducing apparatus 33 such as a video cassette recorder (VCR).
[0068]
  That is, as shown in FIGS. 28 and 29, V blanking information of the signal received by the tuner unit 35 is demodulated by the VBI decoder unit 37, and the recording medium cartridge 14 is passed through the μ-COM unit 38 which is a microcomputer. The character information regarding the recorded contents is recorded in the memory 4c. Note that normal video signals and audio signals are recorded on the magnetic tape as the recording medium 6 via the video signal processing unit 36.
[0069]
  That is, as shown in FIG. 29, first, recording reservation information, that is, recording start time, recording end time, channel, recording start tape, and the like are set on the recording / reproducing apparatus 33 side which is the VCR side (S17).
[0070]
  When the recording start time comes, the recording is started, and the recording information demodulated by the VBI decoder unit 37 is written in the memory 4c of the recording medium cartridge 4 (S18). The recording information is written to the memory 4c until the recording end time (S19, S20, S21).
(2). When inputting using a keyboard.
  When writing to the memory 4c of the recording medium cartridge 4 using a keyboard, a screen 39 as shown in FIG. 30, for example, is displayed on the keyboard or CRT tube surface, and the arrow is moved using a numeric keypad such as a VCR or remote controller. , You can enter characters.
[0071]
  The contents of the memory 4c of the recording medium cartridge 4 stored by the input means (1) and (2) in this way are displayed on the screen 39 as shown in FIG. Information can be displayed on the screen 39 as shown in FIG.
[0072]
  Then, by selecting, for example, “PROGRAM1.” Of the character information shown in FIG. 31 or, for example, a wedding still image of the still image information shown in FIG. 32, the tape position where the selected image is recorded is selected. Can be cued.
[0073]
  When the digest directory file described with reference to FIGS. 24 and 25 is created, a predetermined table of contents is displayed, and a digest pack is created by selecting an item in the table of contents. Examples of this item include “character input”, “digest creation”, “character correction”, and “digest correction”. When “Create Digest” is selected, all programs recorded on the tape are displayed as shown in FIG. 31, for example, and the playback order is designated. This will create a pack for the digest.
[0074]
【The invention's effect】
  As described above, on the premise that the memory provided in the recording medium cartridge is used, a fixed-length pack composed of item data formed with a predetermined byte length and arbitrary data formed with a predetermined byte length. A pack in which all the combinations of bits of small items correspond to one value value of a large item by dividing the item data into an upper bit group as a large item and a lower bit group as a small item. The data recorded on the tape is divided into groups such as genre, etc., by storing the packs in the memory in order in the pack by associating the packs with the value values of the large items. It is extremely easy to manage and manage tapesThe effectThere is.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a basic data structure of a data structure according to the present invention.
FIG. 2 is an explanatory diagram showing recorded information on a magnetic tape corresponding to the basic data structure.
FIG. 3 is a block diagram showing an example in which data is added to and extended from the basic data structure.
FIG. 4 is a block diagram showing another example in which data is added to and extended from the basic data structure.
FIG. 5 is a block diagram showing still another example in which data is added to and extended from the basic data structure.
FIG. 6 is a block diagram showing an example of structuring based on the basic data structure.
7 is an explanatory diagram schematically showing recorded information on a magnetic tape corresponding to the block diagram shown in FIG. 6. FIG.
FIG. 8 is an explanatory diagram showing a hierarchical structure of a soft tape and a user tape.
FIG. 9 is an explanatory diagram showing an example of a data structure hierarchized based on a basic data structure;
FIG. 10 is an explanatory diagram showing memory addresses of a data structure hierarchized based on the basic data structure;
FIG. 11 is an explanatory diagram showing another example of a data structure hierarchized based on the basic data structure.
FIG. 12 is an explanatory diagram showing a directory in which a highlight scene is recorded.
FIG. 13 is an explanatory diagram showing a custom file.
FIG. 14 is an explanatory diagram showing an example of a data structure of an unregistered cartridge.
FIG. 15 is a flowchart for data structuring of unregistered and registered cartridges in FIG. 14;
FIG. 16 is an explanatory diagram showing a state of a data structure in which a directory is automatically generated at the time of recording a data structure according to the present invention.
FIG. 17 is an explanatory diagram showing an example of a data structure hierarchized based on a data structure created by creating a new directory having the same structure;
18 is an explanatory diagram showing an example of a data structure hierarchized based on the basic data structure in FIG. 17;
FIG. 19 is an explanatory diagram showing an example of a data structure hierarchized based on the basic data structure of the data structure according to the present invention.
FIG. 20 is an explanatory diagram showing an example of a data structure hierarchized based on the basic data structure;
FIG. 21 is an explanatory diagram showing another example of a data structure hierarchized based on the basic data structure;
FIG. 22 is an explanatory diagram showing still another example of a data structure hierarchized based on the basic data structure.
FIG. 23 is an explanatory diagram showing an example of a data structure hierarchized based on a basic data structure by a soft magnetic tape in the data structure according to the present invention.
24 is a schematic explanatory diagram of division of recorded information recorded on the magnetic tape having the data structure in FIG. 23. FIG.
25 is an explanatory diagram showing an example of a data structure hierarchized based on the basic data structure of the data structure in FIG. 24. FIG.
FIG. 26 is an explanatory diagram showing a pack used when data is recorded in a memory.
FIG. 27 is an explanatory view showing a large item of a pack.
FIG. 28 is an explanatory diagram showing a connection state between the recording medium cartridge and the recording / reproducing apparatus according to the present invention.
FIG. 29 is a schematic flowchart showing storage in a memory during the recording.
FIG. 30 is an explanatory diagram showing an example in which recording information when the data structure is constructed is displayed.
FIG. 31 is an explanatory diagram showing an example in which recording information when the data structure is constructed is displayed.
FIG. 32 is an explanatory diagram showing an example in which recording information when the data structure is constructed is displayed.
[Explanation of symbols]
  1,1 'basic data structure
  2 Recording start time code
  3 Recording end point time code
  2 ', 3' track number
  4 Recording media cartridge
  4a storage case
  4b contact
  4c memory
  5 reels
  6 Recording media
  7 areas
  8 Recording start point
  9 Recording end point
10 Program name
11 Program number
12 Date
13 Image data
14 Title hierarchy
15 Chapter hierarchy
16 part hierarchy
17 Program hierarchy
18 root
19 Recording media information
20 ID
21 Optional data
22 Recorded content information
23 Top layer
24 Highlight Scene
25 Custom files
26 Name not set
27,28 directory
29 Item data
30 data
31 large items
32 small items
33 Recording / reproducing device
34 connector
35 Tuner
36 Video signal processor
37 VBI decoder section
38 μ-COM part
39 screens
40 arrows

Claims (8)

A method of managing the data by providing a memory in a recording medium cartridge for storing a tape as a recording medium, storing information in the memory for managing and controlling data recorded on the tape,
The data structure stored in the memory for managing data recorded on the tape is a fixed-length pack of item data formed with a predetermined byte length and arbitrary data formed with a predetermined byte length. The smallest data unit,
The item data in the minimum data unit is divided into an upper bit group of a large item and a lower bit group of a small item,
The large item has a plurality of value values, and for each value value, it is possible to generate a number of packs equal to the number of all combinations of bits of the small item, and the plurality of value values. A data management method using a memory provided in a recording medium cartridge, wherein packs are hierarchically associated with each other and are stored in order in pack units hierarchically associated with the memory.   The pack as the minimum data unit is formed of 1 byte for the item data, 4 bytes for the arbitrary data, 4 bits for the upper bit group of the large item, and 4 bits for the lower bit group of the small item. 2. The recording medium cartridge according to claim 1, wherein 16 packs of 4-bit combinations of the small items are formed for one value value of the large item. Data management method using a separate memory.   When it is the first tape that can be arbitrarily recorded by the user, the item pack having at least the recording start position and the recording end position of the data recorded on the first tape as the large item is defined as the top-level pack. 2. The recording medium cartridge according to claim 1, wherein a program pack having at least a time code of a program recorded on the first tape has a two-layer structure having a lower-layer pack. Data management method using memory. When the data is a second tape on which data is recorded in advance, an item pack having at least a recording start position and a recording end position of the data recorded on the second tape is recorded in the uppermost hierarchy. age,
A chapter pack having at least a time code designating a group of data recorded on the second tape is set as a lower hierarchy of the item pack,
2. The recording according to claim 1, wherein a part pack having at least a time code for designating each of the areas recorded on the second tape has a three-layer structure as a lower layer of the chapter pack. A data management method using a memory provided in a medium cartridge. A tape as a recording medium, a storage case for storing the tape, a memory for storing information for managing and controlling data recorded on the tape, and a contact point that contacts a connector provided in the recording / reproducing apparatus A recording medium cartridge having means,
The data structure stored in the memory for managing the data recorded on the tape is a fixed-length pack of item data formed with a predetermined byte length and arbitrary data formed with a predetermined byte length. The smallest data unit,
The item data in the minimum data unit is divided into an upper bit group of a large item and a lower bit group of a small item,
The large item has a plurality of value values, and for each value value, it is possible to generate a number of packs equal to the number of all combinations of bits of the small item, and the plurality of value values. The recording medium cartridge is stored in order in pack units hierarchically associated with each other in the memory by performing hierarchical association between packs.   The pack as the minimum data unit is formed by 1 byte of the item data, 4 bytes of the arbitrary data, 4 bits of the upper bit group of the large item, and 4 bits of the lower bit group of the small item. 6. The recording medium cartridge according to claim 5, wherein 16 packs of 4-bit combinations of the small items are formed for one value value of the large item.   When it is the first tape that can be arbitrarily recorded by the user, the item pack having at least the recording start position and the recording end position of the data recorded on the first tape as the large item is defined as the top-level pack. 6. The recording medium cartridge according to claim 5, wherein a program pack having at least a time code of a program recorded on the first tape has a two-layer structure in which a lower-layer pack is used. When the data is a second tape on which data is recorded in advance, an item pack having at least a recording start position and a recording end position of the data recorded on the second tape is recorded in the uppermost hierarchy. age,
A chapter pack having at least a time code designating a group of data recorded on the second tape is set as a lower hierarchy of the item pack,
6. The recording according to claim 5, wherein a part pack having at least a time code designating each of the areas recorded on the second tape has a three-layer structure as a lower layer of the chapter pack. Media cartridge.

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