JPH0831156A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To provide a recording and reproducing device which can reduce the processing time required for utilization, management, etc., of information about the recorded contents of the tape cassette stored in a storage device relatively slow in access speed. CONSTITUTION:At the time of inserting a tape cassette, a second index information preparation means 12 reads a first index information in the memory using the memory reading means 10 to write it into the SRAM as a second index information. When recording operation, etc., are carried out, a first index information correcting means 4 rewrites the second index information in the SRAM 5 so as to be matched with the program on the tape. At the time of ejection, the first index information preparation means outputs the second index information in the SRAM 5 to the memory writing means 11 and performs back-writing to the memory to facilitate the fast processing for maintaining matching between the contents of the tape cassette and those of the attached memory.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus, and more particularly to a recording / reproducing apparatus using a tape cassette equipped with a storage device for recording information on a program recorded in a tape cassette.

[0002]

2. Description of the Related Art Recently, an apparatus using a tape-shaped recording medium,
For example, in a device such as a video tape recorder (hereinafter referred to as VTR), improvement in operability is strongly demanded by the market. Among them, in particular, improvement of the intelligibility and speed at the time of retrieval of contents, which is the greatest weak point of the tape-shaped medium with respect to the disk-shaped medium, is a big issue.

Therefore, it is considered to attach a memory to a tape cassette and record the instantaneous position information of the tape in the memory on the cassette as in Japanese Patent No. 1296092. The function of a VTR using a tape cassette with a memory, which has been considered conventionally, will be described below.

FIG. 30 is a block diagram showing the structure of the main part of a VTR 300 using a tape cassette having a memory, which has been considered in the past, and controls the recording head 301 and the recording head 301 like a normal VTR. There is a recording means 302 for reading, a memory reading means 306 for accessing the memory attached to the tape cassette through the connector 304, and a memory writing means 307. Input / output is connected to the TOC information processing means 305. ing. The TOC information processing means 305 is the recording means 3
02 is also connected to receive tape position information recorded on the tape when recording is performed. Further, the TOC information processing unit 305 is connected to the display unit 308 by the T in the memory.
Display OC information. FIG. 31 is a diagram showing an example of TOC information displayed on the display means 308, 310 is the recording date and time of each program recorded in the tape cassette, 311 is a channel, 312 is a title, and the user is the cursor 313. Move the to select a program and VT the selected program
R searches. Each program is arranged in the order of position on the tape.

Because of the number of terminals of the connector 304, a memory adopting a serial interface is used, and therefore the memory reading means 306 and the memory writing means 307 are serial, which is slower than the communication by the parallel interface. It is based on communication.

Next, the data arrangement in the conventional memory will be described with reference to FIG. FIG. 32 is a map showing an example of a conventional data arrangement in a memory. Memory space 32
0 is divided into an index information area 321, a text information area 322, and a no-information area 323. Each index information has a head 1 byte as a header indicating the type of information, and a 6-byte packet consisting of 5 bytes of information portion as a unit. The length is variable, and the text information is composed of a variable length packet including 1 byte of the header part, length information and a text code. One piece of text information selectively corresponds to one piece of index information, and the order of the index information and
The correspondence between the index information and the text information is indicated by making the order of the corresponding text information the same.

Here, the operation of the conventional VTR 300 when displaying TOC information as shown in FIG. 31 will be described. T
The OC information processing unit 305 reads information from the memory reading unit 306 and searches for a program in the order on the tape. That is, the start tape position information of all the index information is read, the first program is found, the information is sent to the display means 308 and displayed, and then the second index information is searched and displayed, and one screen is displayed. By the way it ends.

When the text information is output in the above processing, the index information of interest is grasped by the index information having the text information, and the corresponding text information is searched from the area 322. Therefore, at the time of display, it is necessary to access both the start tape position information of all index information and the information indicating the presence or absence of text.

Next, when recording is performed by the recording means 302 and the recording head 301, the index information of the program which is completely or partially erased by the overwriting recording is corrected,
Since deletion is necessary, all index information is accessed at the start of recording to find a program including the current position and the index information is corrected. When the end position of the program is reached while continuing recording, all index information is accessed again in order to find the program to be overwritten next. In this way, the index information of the program overwritten is corrected, and the index information of the newly recorded program is created.

As described above, the index information management operation in the conventional VTR 300 is performed.

[0011]

Problems to be solved by the above method will be described below. The first problem is that communication between the memory on the tape cassette and the VTR 300, that is, the memory reading means 306 and the memory writing means 307 is serial communication, so the memory access speed becomes slow and information is required. The point is that if you access the memory every time, the processing becomes very slow.

A second problem is that the list display appears on the tape in that the order of index information on the memory is not related to the order of programs on the tape in order to increase the degree of freedom of the layout. When performing sequentially, it is necessary to access all index information each time one line is output or the cursor is moved, and in the worst case even when overwriting recording is performed, it is necessary to access all index information. Although the degree of freedom is high, complicated processing is required, the number of memory accesses increases, and processing takes time.

A third problem is that it is difficult to find the corresponding index information and text information because the areas of the index information and the text information that is supplementary information of the index information are separated. When it is found that the text information corresponding to the information exists, in order to find the corresponding text information, all index information written in the area before the index information on the memory is accessed to find out what number. It is necessary to find out the target text information by checking whether the text information of the text corresponds to the index information and further checking the length information of the text information in sequence, so that complicated processing is still required and the number of memory access times is increased. Will also increase, and processing will take time.

The fourth problem is that since each index information has a variable length, the head position of each index information cannot be found immediately. Therefore, it is not possible to access every 6 bytes from the head of the index information. Since the next index information cannot be obtained, even if only the index information of one program is obtained, the number of times the memory is accessed increases and the processing takes time.

Therefore, the present invention solves the above problems and makes it possible to shorten the processing time when using or managing information relating to the recorded contents of a tape cassette stored in a storage device with a slow access speed. An object is to provide a reproducing device.

[0016]

In order to solve the above problems, the first invention converts the first index information read by the first reading means for reading information from the first storage device. As a result, the second index information is created and the second index information output means for outputting the second index information to the second writing means having a high access speed to the second storage means and the tape position information from the recording means are obtained. , Second index information correction means for accessing the second storage means to create and delete the second index information, and second read means obtained from the second reading means having a high access speed to the second storage means. The first index information output for converting the index information into the first index information and outputting the created first index information to the first writing means for writing the information in the first storage means. A structure in which and means.

Further, in order to solve the above-mentioned problems, in the second invention, the second index information output means sets the order of the first index information including the appearance tape position information of the program recorded in the tape cassette. , The second index information is converted into the second index information in the order of the appearance tape position, and the second index information is stored while the index information correction means stores the state in which the second index information is arranged in the tape position order of the corresponding program. Information is created and deleted.

Further, in order to solve the above-mentioned problems, a third aspect of the invention is to add the first index information and the additional information read by the first reading means to the additional information included in the first index information. By using the presence / absence information, the first index information is rearranged so as to be adjacent to the accompanying information, and the second index information is created.
The second index information output means for outputting to the writing means and the tape position information from the recording means, and the second reading information and the second writing means are used to obtain the respective second index information. Index information correction means for creating and deleting the second index information while maintaining the corresponding first index information and auxiliary information attached to each first index information adjacent to each other, and second reading means. The additional information is output from the second index information obtained from the first index information to separate the additional information from the second index information and write it in the additional information area in the first storage device. A first index information output means for adding information presence / absence information and outputting it to the first writing means is provided.

In order to solve the above-mentioned problems, the fourth invention detects the address in the first storage device of each index information of the first storage device obtained by the first reading means. , Address information creating means for creating address information of each of the index information as first management information, and first management information obtained from the address information creating means as second management information for a second document. Management information output means for outputting to the storage means and recording in the second storage device, and tape position information from the recording means, and the second reading means and the second
Writing means is used to obtain address information of the index information from the second management information, thereby creating and deleting the index information through the first reading means and the first writing means. And an index information correcting means for performing the above.

Further, in order to solve the above-mentioned problems, a fifth invention is to detect the length of each index information obtained from the first reading means and create length information of each index information to create the length information of each index information. The length information creating means as the first management information and the first management information from the length information creating means as the second management information are output to the second writing means, and are stored in the second storage device. By obtaining the tape position information from the management information output means for recording and the recording means, and obtaining the length information of the index information by using the second reading means and the second writing means, the first reading is performed. The index information correction means for creating and deleting the index information through the means and the first writing means.

Further, in order to solve the above-mentioned problems, a sixth aspect of the invention is to create auxiliary management information for extracting a part of the index information obtained from the first reading means and creating fixed-length auxiliary management information. And the management information output unit combines the first management information corresponding to the same index information and the auxiliary management information into the second management information, and the index information correction unit includes the second management information. The auxiliary management information is rewritten by using the reading means and the second writing means.

[0022]

The first aspect of the present invention is realized by the above-described structure as follows. The second index information output means is
The index information of the first storage device is read via the first reading means, the first index information is converted into the second index information, which is sent to the second writing means, and recorded in the second storage device. To do. The index information correction means uses the tape position information from the recording means to write the second index information recorded in the second storage device to the second reading means, after the processing of the second index information output means is completed. It is managed by creating and deleting it via the second writing means. The first index information output means converts the second index information obtained from the second reading means into the first index information and sends it to the first writing means after the processing of the index information correcting means is completed. , The modified first index information is recorded in the first storage device.

The second aspect of the invention is realized by the above-described structure as follows. The second index information output means converts the order of the first index information including the appearing tape position information of the program recorded in the tape cassette into the appearing tape position order to obtain the second index information, and the index information is corrected. The means is configured to execute the second index after the processing of the second index information output means is completed.
The second index information is created and deleted while saving the state in which the index information of 1 is arranged in the tape position order of the corresponding program.

Further, the third aspect of the invention is realized by the above-mentioned structure as follows. The second index information output unit uses the first index information and the additional information read by the first reading unit as the first index by using the additional information presence / absence information included in the first index information. The second index information is created by rearranging the information so that it is adjacent to the accompanying information, and the second index information is output to the second writing means and recorded in the second storage device. After the processing of the second index information output means is completed, the index information correction means obtains tape position information from the recording means and uses the second reading means and the second writing means to each second index. The second index information is created and deleted while maintaining the state in which the first index information corresponding to the information and the supplementary information attached to each first index information are adjacent to each other. The first index information output means separates the incidental information from the second index information obtained from the second reading means after the end of the processing of the index information correcting means, and stores the incidental information in the incidental information area in the first storage device. The first writing unit outputs the additional information to the first writing unit so as to write, and adds the additional information presence / absence information to the first index information so as to write it in the index information area of the first storage unit. Output to.

Further, the fourth aspect of the invention is realized by the above-described structure as follows. Address information creation means,
The address in the first storage device of each index information of the first storage device obtained by the first reading means is detected,
First, the address information of each index information is created.
Management information. The management information output means receives the first management information from the address information creation means, outputs it as the second management information to the second writing means, and records it in the second storage device. The index information correction means, after the processing of the address information creation means and the management information output means, completes the tape position information from the recording means and the address information of the index information from the second management information read from the second reading means. By obtaining the index information, the index information is created and deleted through the first reading unit and the first writing unit. In addition, when the index information is created or deleted by the index information correcting means, the processing of the address information creating means and the management information outputting means is performed again as necessary, so that the second management information is always index information. The state in which the address information of is accurately indicated is retained.

The fifth aspect of the invention is realized by the above-described structure as follows. The length information creating means is the first
The length of each index information obtained from the reading means is detected, and the length information of each index information is created as the first management information. The management information output means outputs the first management information output by the length information creating means as the second management information to the second writing means and records it in the second storage device. The index information correction means obtains the tape position information from the recording means and the length information of each index information read via the second reading means to obtain the first information.
The index information is created and deleted through the reading means and the first writing means. Further, when the index information is created or deleted by the index information correction means, the processing of the length information creation means and the management information output means is performed again as necessary, so that the second management information is always stored in each index. Length of information Holds a state that accurately indicates information.

The sixth aspect of the invention is realized by the above-described structure as follows. Auxiliary management information creation means,
A part of the index information obtained from the first reading means is extracted to create fixed-length auxiliary management information. The management information output means combines the first management information corresponding to the same index information and the auxiliary management information output by the auxiliary management information creating means into second management information. The index information correction means reads the auxiliary management information using the second reading means, and when the index information is changed via the first writing means, uses the second writing means to assist the auxiliary information. The management information is rewritten so that the auxiliary management information always holds a part of the index information accurately.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A VTR which is a recording / reproducing apparatus according to a first embodiment of the present invention will be described below with reference to the drawings. 2A and 2B are views showing the structure of a memory-equipped tape cassette (hereinafter, simply referred to as a tape cassette) 23 used in the VTR of this embodiment. FIG. 2A is a plan view, and FIG. It is a rear side view which shows the side surface of a direction. As shown in the figure, the video tape 20 is housed in a cassette half 22 including a tape guide mechanism. On the rear side surface of the cassette half 22, a nonvolatile memory 21 which is a first storage device, for example, an EEPROM, is provided.
Is installed. The memory 21 is a memory having an area for recording index information about a program recorded on the video tape 20, and a connector or terminal (not shown) for connecting a power supply and a signal line of the memory 21 is attached to the cassette half 22. It is supposed to be.

3 and 4 are maps showing the storage positions of data in the memory 21. These figures show the case where a semiconductor memory having a storage capacity of, for example, 2 Kbytes is used, starting from address number 0, and the horizontal axis is 0 for each packet.
It is assumed that 6 bytes from the 5th byte to the 5th byte are shown, and the vertical axis shows an address every 6 bytes.

As shown in FIG. 3, the memory 21 is composed of an area 24 in which a normal packet is stored and an informationless area 25. All the data in the informationless area 25 is FF in hexadecimal notation (hereinafter, h at the end). Is attached and expressed as FFh). In this case, there are m normal packets.

The first index information, which is information about each program, consists of a plurality of packets, and one first index information.
Packets forming the index information of are arranged consecutively. Therefore, for example, the first index information i
When each packet is composed of m packets, the memory contents of FIG. 3 are considered to have the contents shown in FIG. 4, and the area 24 in which a normal packet is stored matches the index information area 26.

FIGS. 5 to 9 are maps showing the contents of each packet shown in FIGS. Each packet has a length of 6 bytes, the first byte is a packet header, and the second to sixth bytes store data.

FIG. 5 is a map showing the structure of the program start position packet 30. The first byte is a packet header 31 (01h) of the program start position packet 30, and the second byte is a reproduced flag and an erase prohibition flag. The 3rd to 6th bytes are the recording start tape positions 33 to 36 indicating the start tape position of this program in hours, minutes, seconds and frames.

FIG. 6 is a map showing the structure of the program end position packet 40. The first byte is the packet header 41 (02h) of the program start position packet 40, the second byte is the channel information 42 indicating the channel when this program was recorded, and the third to sixth bytes are this program. When the end tape position of
Recording end tape position 43 shown in minutes, seconds, and frames
~ 46.

It should be noted that one piece of first index information is composed of at least two packets of the program start position packet 30 and the program end position packet 40 described above, and the head of the packet forming each first index information. Must always be the program start position packet 30. Therefore, the packet starting from the address 0 of the memory 21 is always the program start position packet 30.
Or the entire memory 21 is a non-information area. Therefore, although the packet shown below is a constituent element of the first index information, it can be said that it is not an essential element.

FIG. 7 is a map showing the structure of the recording start time packet 50. The first byte is the packet header 51 (03h) of the recording start time packet 50, the second byte is an empty area (00h), and the third to sixth bytes are the recording start time in hours, minutes, seconds, and frames. The recording start times 53 to 56 are shown.

FIG. 8 is a map showing the structure of the recording end time packet 60. The first byte is the recording start date packet 6
It is a packet header 61 (04h) of 0, the second byte is a free area (00h), and the third byte to the sixth byte are the recording start date indicating the recording start date in hours, minutes, seconds, and frames. 63 to 66.

FIG. 9 is a map showing the structure of the broadcast station genre packet 70. The first byte is the packet header 71 (05h) of the broadcasting station genre packet 70, the second byte is the country code 72, which codes the country where the VTR was sold. For example, 00h is the United States and 01h is Japan, 02h is Germany ... FFh
Has no information. The third byte is the area code 73, which is a code for classifying the regions, states, and prefectures of each country. For example, when the country code 72 is 01h to indicate Japan, 00h is Hokkaido, 01h is Aomori prefecture, ...
・ 1Ch is Osaka Prefecture, ..., FFh is no information. The 4th byte is a broadcasting station code 74, which codes each regional broadcasting station designated by the country code 72 and the area code 73. For example, the country code 72 is 01h and the area code 73 is 1Ch. When Osaka Prefecture is indicated, 00h is NHK, 01h is NHK education, 02h is broadcast daily, and ... FFh is no information.
The fifth byte is a broad genre code 75, which broadly divides the recorded program genres and stores the coded one. For example, 00h is news, 01h is a movie, 0
2h is sports, ..., FFh is no information. The 6th byte is the detailed genre code 76,
The coded details of the recorded program genre are stored. For example, the major category code 75 is 0
When showing sports in 2h, 00h is soccer, 01
h is tennis, 02h is baseball ... FFh has no information.

By arranging the above-mentioned packets in the index information area 27, information about the program recorded on the video tape 20 is recorded in the memory 21.

Next, the VTR of this embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the main part of the VTR 1 of this embodiment. The VTR 1 is, like the conventional VTR, a signal processing circuit unit for recording and reproducing a video signal,
It has a scanning mechanism for a video tape including a rotating drum and a fixed drum, a loading and unloading mechanism for a tape cassette, and the like.

A recording head 2 and a reproducing head (not shown) are attached to the rotary head, and a read signal of the reproducing head is given to a reproducing signal processing circuit section. The recording head 2 is controlled by the recording means 3, and the positional information recorded on the video tape 20 together with the video and audio signals generated by the recording means 3 and supplied from the signal processing circuit section of the recording not shown is the index information correcting means. Given to 4.

The index information correction means 4 uses, for example, the second index information recorded in the SRAM 5 which is the second storage device having a high access speed because it is connected by the parallel interface, and the second index information is changed to the second index information if necessary.
The read processing is performed through the SRAM reading means 6 which is the reading means, and the second index information is rewritten through the SRAM writing means 7 which is the second writing means.
It also has means for displaying the second index information in the SRAM 5 to the user using the display means 8.

On the other hand, the VTR 1 has a connector 9 for accessing the memory 21 of the tape cassette 23, and the information in the memory 21 is read and the first write is performed via the memory reading means 10 which is the first reading means. Information can be written in the memory 21 via the memory writing means 11 as means. At the time of loading the tape cassette 23, the second index information creating means 12 which is the second index information output means, immediately after the end of the cassette in operation, outputs the information of the first index information read via the memory reading means 10. An operation is performed in which the second index information created by converting without being lost is written in the SRAM 5 via the SRAM writing means 7. Also, when the tape cassette 23 is ejected, the first
The first index information creation means 13 which is the index information output means of the first index information creation means 13 creates the first index information created from the second index information read via the SRAM reading means 6 via the memory writing means 11 into the memory 21. Write to. When a recording operation or the like is performed by the recording means 3 between the cassette in and the ejection, the first and second index information processing means 4 receive the SR by obtaining the tape position information from the recording means 3.
By rewriting the second index information in the AM5 and writing it back to the memory 21 as the first index information at the time of ejection, the contents of the program recorded on the video tape 20 and the first index information in the memory 21 are matched. Try to maintain sex.

By the above operation, the tape cassette 23
After being used in the VTR 1, the contents of the memory 21 are correctly updated, and since accurate information exists in the SRAM 5 even during use, the memory 2 similar to the conventional one is used.
The function using 1 can be realized, and since the SRAM reading unit 6 and the SRAM writing unit 7 are both faster than the memory reading unit 10 and the memory writing unit 11, the correction process of the second index information during the recording operation is performed. Also, there is an advantage that the operation of the index information correction means 4 at the time of displaying on the display means 8 becomes faster.

Next, a VTR which is a recording / reproducing apparatus of the second embodiment of the present invention will be described. The tape cassette used in the VTR of this embodiment is the same as that of the first embodiment,
The data format of the memory 21 is the same as that of the first embodiment, and the configuration of the main part is also the same as that of the first embodiment shown in FIG.

The operation of the second index information creating means 12, the index information correcting means 4, and the first index information creating means 13 in this embodiment will be described below.
FIG. 10 is a block diagram showing the detailed arrangement of the index information creating means 12 of this embodiment. The input unit 90 inputs the first index information output by the memory reading unit 10, and the index information order changing unit 91 receives the information from the input unit 90 and the information from the SRAM reading unit 6 (not shown) and receives the first index information. The index information is rearranged in the order of the appearance tape position of the corresponding program and is output to the output unit 92 as the second index information. The output unit 92 outputs the second index information to the SRAM writing unit 7. .

The index information correction means 4 corrects the second index information while saving the state in which the respective second index information are arranged in the order of the appearance tape position.

The first index information creating means 13 is
By outputting the second index information as it is as the first index information, the video tape 20 is finally output.
The contents of the program recorded in the memory and the first of the memory 21.
Be consistent with the index information of.

The detailed operation of the index information order changing unit 91 will be described below. FIG. 11 is a flowchart showing the operation of the index information order changing unit 91. The variables will be described below.

MADR is a variable indicating the address of each packet header of the first index information in the memory 21. The initial value is address 0, and 6 is added to pay attention to the packet header. RADR is a variable indicating the address of each packet header of the second index information in the SRAM 5, the initial value is the address 0, and MA
As with DR, 6 is added to pay attention to the packet header.

MST represents the tape position indicated by the program position information packet included in the first index information having MADR as the start address, and RST also represents RA.
This indicates the tape position written in the index portion of the second index information having DR as the start address.

The operation will be described below. However, all the data in the SRAM 5 is flip-flopped by a step (not shown).
It is assumed to be h. Each variable is initialized in steps 110 and 111, the program start position packet 30 which is the first packet of the first index information is found in the loop of steps 112 to 114, and the start address is provided in MADR. When it is detected that the content of the packet header is FFh, it is determined that the index area has ended in step 112, and the processing ends.

Next, the start tape position is compared between the second index information already written on the SRAM 5 and the first index information having MADR as the start address.

At step 115, the contents of RADR are FF.
If the second index information in the SRAM 5 to be compared with is found to be h, step 119
Move on to. When a packet whose RADR content is 01h is found in step 116, the tape start position (MST) included in the first index information having MADR as the start address in step 118 and the S
The data is recorded in the RAM 5 so as to be arranged in the order of the tape positions, and R
Relative to the tape start position (RST) included in the second index information having ADR as the start address, R
If ST is larger than MST, the first index information having the MADR as the start address is located immediately before the second index information having the RADR as the start address. Therefore, the insertion operation is performed in step 119, and in step 120. 6 is added to MADR, and the process returns to step 111 to process the next first index information. Also,
When MST is larger than RST, 6 is added to RADR in step 117 to search for the next second index information in SRAM 5, and the process returns to step 115 to continue the loop. If the head of the first index information in the memory 21 is MADR, step 115
It is judged that the content of RADR (= 0) is FFh, and SRAM
The first index information is written at address 0 of 5.

At step 120, RAD is read by the length of the second index information to be written in the SRAM 5.
The data after R is shifted backward and the index information is written in the vacant area.

With the above operation, the arrangement of the second index information as shown in FIG. 12 is obtained. At this time, the video tape 20 is recorded with the programs A1 to Ai as shown in FIG. In addition, program A1
The second index information A1 to Ai correspond to Ai, respectively. FIG. 13 is a diagram showing the recording status of the program recorded on the video tape 20.

When the program A2 is erased by overwriting the tape position information from the recording means 3 and the program m + 1 is recorded, the index information correction means 4 shows the arrangement order of the respective second index information tape positions. In order to maintain the sequential state, the second index information m + 1 corresponding to the program m + 1 is recorded in the recorded area of the program A2. When the length of the second index information A2 is different from the second index information m + 1, the second index information A3 to
Shift Ai so that no free area is created.

When the contents of the memory 21 are as shown in FIGS. 12 and 13, all the index information is recorded in the order in which it is recorded on the tape, in addition to the same advantages as those of the first embodiment. Since the information is recorded on the memory 21, when the index information correction means 4 displays the information about the program in the tape cassette 23 to the user via the display means 8 as in the conventional case, the programs are arranged in the tape position order. When you want to display, the process is obviously simple. Further, when the normal recording is performed, if the second index information Aj of the program Aj including the tape position where the recording is started is found, the recording is continued, and when the end position of the program Aj is reached, the next It suffices to focus on the second index information A (j + 1).
There is no need to search for index information for. In addition, since the second index information can be returned to the memory 21 as the first index information as it is at the time of ejection, the number of shift operations at the time of writing operation from the memory 21 to the SRAM 5 at the next use is reduced. Therefore, it becomes possible to process at high speed.

The above is the description of the second embodiment of the present invention. Next, the V which is the recording / reproducing apparatus of the third embodiment of the present invention.
TR will be described. The tape cassette used in the VTR of this embodiment is the same as in the first and second embodiments. Regarding the data format of the memory 21 of the tape cassette, the difference from the first and second embodiments will be described.

The first index information of this embodiment is almost the same as that of the first and second embodiments, but in this embodiment, the first text information which is the supplementary information attached to the first index information. Exists in the memory 21 and is arranged as shown in FIG. A text information area 27 stores the first text information. As shown in FIG. 15, the first index information has a text presence / absence flag 32 for indicating the presence or absence of the corresponding first text information,
In the relationship between the number i of the first index information and the number n of the first text information in FIG. 14, i ≧ n holds. FIG. 15 is a map showing the structure of the program start position packet 37 in this embodiment.

One piece of the first text information consists of one text packet having an arbitrary length, and the text packet has a structure as shown in FIG. FIG. 16 is a map showing the structure of the text packet 80, the first byte is the packet header 81 (10h) of the text packet 80, and the second byte is text length information indicating the length of the text data in the text packet. 82, which is k in this case. Text data 83 to 85 are stored in the 3rd byte to (k + 2) th byte, and this text packet has k bytes of text data.

Since the arrangement of the text packets 80 in the text information area 27 is the same as the order in the index information area 26 of the corresponding first index information, the arrangement is as shown in FIG. FIG.
7 is a map of the memory 21 showing an example of the relationship between the first index information and the first text information, and 32 is a text presence / absence flag included in the program start position packet 37 included in the first index information. .

The VTR of this embodiment will be described with reference to FIG. FIG. 18 is a block diagram showing the configuration of the main part of the VTR 130 of this embodiment. VTR 130 is a conventional V
Similar to the TR, it has a signal processing circuit section for recording and reproducing video signals, a video tape scanning mechanism section including a rotating drum and a fixed drum, a loading cassette unloading mechanism section and a tape cassette.

A recording head 2 and a reproducing head (not shown) are attached to the rotary head, and a read signal from the reproducing head is given to a reproducing signal processing circuit section. The recording head 2 is controlled by the recording means 3, and the tape position information recorded on the video tape 20 together with the video and audio signals generated by the recording means 3 and supplied from the recording signal processing circuit unit (not shown) is corrected as index information. Provided to the means 131.

The index information correction means 131 uses SR
Second index information recorded in AM5, second
The text information of 1 is read through the SRAM reading means 6 as necessary, and the second index information and the second text information are rewritten through the SRAM writing means 7. It also has means for displaying the second index information and the second text information to the user using the display means 8.

When the tape cassette 23 is loaded, immediately after the cassette-in operation is completed, the text information combining means 132, which is the first index information output means, causes the memory reading means 10 to read the first index information and the first text in the memory 21. Information is read, the arrangement of the first text information is changed, the first index information and the corresponding first text information are rearranged so as to be adjacent to each other, and second index information and second text information are arranged. Is written in the SRAM 5 via the SRAM writing means 7. However, the above-mentioned second index information and the second text information are collectively referred to as the second index information. When the tape cassette 23 is ejected, the text information separating unit 133, which is the first index information outputting unit, outputs the second index information and the second text information output from the SRAM reading unit 6 immediately before the ejecting operation. Is read, the arrangement of the second text information is changed, the second index information and the area of the second text information are separated, and the first index information and the first text information are passed through the memory writing unit 11. And writes it in the memory 21. When a recording operation or the like is performed by the recording unit 3 between the cassette in and the eject, the index information correction unit 131 receives the tape position information from the recording unit 3, and the second index information and the second text. SR while maintaining the state of being adjacent to the information
The second index information and the second text information in the AM5 are rewritten, and at the time of ejection, the memory 2 is rewritten as described above.
By writing back to 1, finally the videotape 20
The contents of the program recorded in the memory and the first of the memory 21.
The index information and the first text information are kept consistent with each other.

Next, the detailed operation of the text information combining means 132 will be described. 19 is a flowchart showing the operation of the text information combining means 132 immediately after the cassette is inserted, and FIG. 20 is a flowchart showing the operation of the text information separating means 133 immediately before the eject operation of the tape cassette 23. The variables will be described below.

The TADR is the memory 2 as in the second embodiment.
This is a variable indicating the start address of the text packet when 1 is read. MADR is the memory 2 in FIG.
A variable indicating the address of each packet header of the first index information in 1 and the initial value is address 0, and 6 is added to pay attention to the packet header. Figure 2
At 0, it is an address counter when writing to the memory 21, and is added together with the writing operation.

RADR is an address counter when writing to the SRAM 5 in FIG. 19, and the initial value is the address 0, which is added together with the write operation. In FIG. 20, it is an address counter when the SRAM 5 is read, and is similarly incremented each time the read is performed.

The operation upon completion of the cassette in will be described below, but it is assumed that all the data in the SRAM 5 have become FFh by steps not shown. Initialization of each variable is performed in steps 150 and 151. In step 152, a packet starting from MADR is written in RADR, but MADR and RADR are each incremented by 6. In step 153, the contents of MADR are checked, and if the next packet is the program start position packet 37, the text packet 80, and the part without information (FFh), the process proceeds to step 154. If not, the process returns to step 152 again. In step 154, the state of the text flag of the second index information that has just been written is checked, and if it is 1, then in step 156 the second
Of the SRAM5 in which the index information of
A text packet starting from ADR is recorded as the second text information. In step 156, the process returns to step 152 only when the next packet is the program start position packet 37, and otherwise the process ends.

By the above operation, the SRAM 5 is stored in FIG.
The arrangement status of each packet is as shown in. Since each second text information is arranged adjacent to the corresponding packet of the second index information, in addition to the advantages of the first embodiment, the corresponding second text when the second index information is accessed. The advantage is that the information is readily accessible.

Note that the second index information and the second text information do not necessarily have to be arranged with a mutual interval of 0. For example, a certain fixed length of information may be arranged as the second index information and the second text information. And the second text information corresponding to the second index information can be immediately accessed.

Next, the operation of ejecting the tape cassette 23 in the VTR of this embodiment will be described. In the VTR of this embodiment, index information correction means 1
Since 31 accesses the SRAM 5, the second index information about the program recorded on the video tape 20 is created and deleted while keeping the state where the second index information and the second text information are adjacent to each other. At the time of ejection, it is still necessary to perform the write operation to the memory 21 as in the first and second embodiments. However, since the second text information is mixed with the second index information, the memory area in which the first index information and the first text information are different from each other is different from that in the first and second embodiments. It is impossible to directly write the second index information and the second text information into the 21 as the first index information and the first text information. Therefore, the text information separating means 133 operates as shown in FIG. 20 below.

The operation in FIG. 20 is divided into two types,
The first cycle is an operation of recording the first index information in the memory 21, and the second cycle is an operation of recording the first text information in the memory 21. In step 160, variables are initialized, and in step 161, the content of RADR is checked to see if the packet indicated by RADR is the text packet 80. If it is a text packet, step 1
In 62, the length is added to RADR, and in step 163, it is checked whether or not the operation of the first round is completed. If it is completed, the process proceeds to step 165 and the operation of the second round is entered. If not completed, a packet beginning with RADR on the SRAM 5 is recorded in the memory 21 in step 164, and RADR, M corresponding to the recorded amount is recorded.
ADR is added and the process moves to step 161. By the operation of the first round, all the packets forming the first index information are recorded in the memory 21.

The operation of the second lap is RADR at step 165.
Is reset to 0, and it is checked in step 166 whether the packet indicated by RADR is text. If it is not a text, add 6 to RADR and repeat the loop of steps 166 and 167 until another text is found. When the text is found, it is recorded as the first text information in the position indicated by MADR, and it is checked in step 169 if it is finished. If it is not finished, the process returns to step 166 to continue the process, and if it is finished, the process is finished.

By the above operation, correct data can be written back to the memory 21 at the time of ejection. Next, a VTR which is a recording / reproducing apparatus of the fourth embodiment of the present invention will be described.

The tape cassette used in the VTR of this embodiment is the same as that of the first, second and third embodiments, and the memory 2
The data format of 1 is the same as that of the third embodiment.
The VTR of this embodiment will be described with reference to FIG. FIG. 22 is a block diagram showing the configuration of the main part of the VTR 180 of this embodiment. The VTR 180 has the same peripheral configuration as that of the first, second and third embodiments, and the position information is given from the recording means 3 to the index information correction means 181.

The index information correction means 181 uses SR
Information is obtained from the AM reading means 6 and the memory reading means 10, and then SR is sent to the SRAM writing means 7 and the memory writing means 11.
Information for rewriting the AM 5 and the memory 21 is output. More specifically, the index information correction unit 181 uses the first index information obtained from the second management information recorded in the SRAM 5 and the address information of the first text information to record the information. The first index information and the first text information in the memory 21 are rewritten, the information is displayed to the user using the display means 8, and the second management information is corrected via the SRAM writing means 7. Perform the process.

At the time of loading the tape cassette 23, immediately after the cassette-in operation is completed, the address information creating means 183 comprises the first address of each of the first index information and the first address of the first text information according to the information from the memory reading means 10. First management information that is address information is created.
On the other hand, the auxiliary management information creating means 184 similarly creates auxiliary management information in which a part of the first index information and the first text information is extracted according to the information from the memory reading means 10. The management information order changing unit 182, which is the management information output unit, collects the first management information and the auxiliary management information into the second management information of a predetermined length, and the first index as in the third embodiment. The second management information corresponding to the information and the second management information corresponding to the first text information are arranged adjacent to each other, and each second management information is started similarly to the second embodiment. The tapes are arranged in the order of the tape positions and sent to the SRAM writing means 7,
Record at 5.

While the tape cassette 23 is being loaded, the index information correction means 181 rewrites the first index information and the first text information in the memory 21 based on the second management information recorded in the SRAM 5 as needed. When the rewriting is performed, the address information creating unit 183, the auxiliary management information creating unit 184, and the management information order changing unit 182 are set to S.
By newly creating the second management information in the RAM 5, the consistency between the program finally recorded on the video tape 20 and the first index information and the first text information is maintained. .

Next, the data arrangement of the management information created on the SRAM 5 will be described with reference to FIGS. 21 and 22.
23 is a map showing the arrangement of each second management information in the SRAM 5 in this embodiment, and FIG. 24 is a map showing the data arrangement in each second management information.

In FIG. 23, in the memory 21, the second management information 200 corresponding to the first index information A1 is arranged at the beginning, and the second management information 206 corresponding to the first text information Bn is arranged. . The first index information A1 has no corresponding first text information, the first index information A2 corresponds to the first text information B1, and the first index information A3 corresponds to the first text information B2. , The first index information Ai corresponds to the first text information Bn. Therefore, the second management information 201 is adjacent to the second management information 202, the second management information 203 is adjacent to the second management information 204, and the second management information 205 is adjacent to the second management information 206. The second management information corresponding to the first index information and the second management information corresponding to the first text information are arranged adjacent to each other. Further, similarly to the second embodiment, the programs corresponding to the index information A1 to Ai are arranged on the tape as shown in FIG.

In FIG. 24, (a) shows the contents of the second management information 210 corresponding to the first index information, and (b) shows the contents of the second management information 211 corresponding to the first text information. Is a map showing.

The second management information 210, 211 is composed of an upper byte and a lower byte, and IDs 212, 2 for discriminating the first index information and the first text information.
Reference numeral 14 is 2 bits and is located at the uppermost position of the upper byte. Starting addresses 213 and 215 of each information in the memory 21 are 11 bits and are composed of the lower byte 8 bits and the uppermost 3 bits. Then, in the second management information 210, among the information included in the first index information, reproduced information and erasure prohibition information exist.

The fixed length second management information as described above is set to S
By having the RAM 5 in the index information correction means 18
1 has the advantage that the first index information on the memory 21 and the start address of the first text information can be obtained instantly. Further, since the first index information is arranged in the order of the starting tape position, when the first index information is displayed on the display means 8 or when the program to be erased during recording is grasped, it is the same as the second embodiment. There are similar advantages, and as in the third embodiment, there is an advantage that the acquisition of the first text information corresponding to the first index information becomes very easy.

Next, detailed operations of the address information creating means 183, the auxiliary management information creating means 184, and the management information sequence changing means 182 when creating the management information 210 and 211 will be described with reference to FIG. FIG. 25 is a flowchart showing the operation of the VTR 180 immediately after the tape cassette 23 is inserted. The variables will be described below.

The TADR is the memory 2 as in the third embodiment.
This is a variable indicating the start address of the text packet when 1 is read. MADR is also an address counter when reading the memory 21 as in the third embodiment. The initial value is address 0, and 6 is added to pay attention to the packet header.

RADR is an address counter for reading and writing the management information in the SRAM 5, and the initial value is the address 0, which is incremented by 2. MST is MADR
Represents the tape position indicated by the program start position packet 37 included in the first index information indicated by
Similarly, ST also represents the tape position written in the first index information corresponding to the second management information indicated by RADR.

The operation will be described below. However, all the data in the SRAM 5 is flip-flopped by a step (not shown).
It is assumed to be h. Address information creating means 18
In step 3, the variables are initialized in steps 220 to 222, and the first address of the first index information in the memory 21 is entered in MADR in steps 223 and 224 shown in FIG. Is created and sent to the management information order changing unit 182. Next, in the management information order changing unit 182, the address RADR of the SRAM 5 is accessed in step 225, and if the ID of the second management information is 01 and it is text, it is set to RADR in step 227.
Is added, and the process returns to step 225. If the ID is an index, MST and RST are compared in step 226, and if MST is large, RA is also calculated in step 207.
Add 2 to DR and return to step 225. MST is R
If it is smaller than ST, in steps 228 and 229, MADR which is the first management information and the auxiliary management information creating means 18
In step 4, the second management information 210 is created with the auxiliary information extracted from the first index information and used as the first management information.
Insert at the RADR position and add 2 to RADR. Furthermore, if the text flag of the first index information indicated by MADR is 1 in step 230, step 23
1 is the first management information, TADR, and the second management information 2
11 and insert into RADR. In step 232 M
When 6 is added to ADR, if MADR is a text packet or a part without information in step 233, the process ends. If not, the process returns to step 222 to process the next first index information.

By performing the above operation, the second
Management information can be created, and in addition to the advantages described above, the capacity of the SRAM 5 for the second management information is about 1/3 at maximum compared to the third embodiment, and the cost required for the SRAM. Can be reduced.

Next, a VTR which is a recording / reproducing apparatus of the fifth embodiment of the present invention will be described. The tape cassette used in the VTR of this embodiment is similar to that of the first, second, third and fourth embodiments, and the data format of the memory 21 is similar to that of the first and second embodiments. The number of packets forming each first index information is limited to eight.

The VTR of this embodiment will be described with reference to FIG. FIG. 26 is a block diagram showing the configuration of the main part of the VTR 240 of this embodiment. The VTR 240 has a peripheral configuration similar to that of the first, second, third and fourth embodiments, and the position information from the recording means 3 is index information correcting means 241.
Given to.

The index information correction means 241 uses SR
Information is obtained from the AM reading means 6 and the memory reading means 10, and then SR is sent to the SRAM writing means 7 and the memory writing means 11.
Information for rewriting the AM 5 and the memory 21 is output. More specifically, the index information correction means 241 uses the address information calculated from the length information of the respective first index information obtained from the second management information recorded in the SRAM 5 at the time of recording or the like. The first index information in the memory 21 is rewritten, the information is displayed to the user by using the display unit 8, and the second management information is corrected through the SRAM writing unit 7.

When the tape cassette 23 is loaded, the length information creating means 243 immediately outputs the first management information, which is the length information of each first index information, according to the information from the memory reading means 10 immediately after the cassette in operation is completed. create. On the other hand, the auxiliary information creating means 244 is also similar to the memory reading means 1
The auxiliary management information is created by extracting a part of the information of each first index information according to the information from 0. The management information output unit 242 collects the first management information and the auxiliary management information into the second management information having a predetermined length, sends it to the SRAM writing unit 7, and records the second management information in the SRAM 5.

While the tape cassette 23 is being loaded, the index information correction means 241 calculates the address information of the first index information of the memory 21 based on the second management information recorded in the SRAM 5 as necessary, The index information of No. 1 is rewritten, and when the rewriting is performed, the length information creating unit 243, the auxiliary information creating unit 244, and the management information output unit 242 newly create the second management information in the SRAM 5. Video tape 2
The consistency between the program recorded in 0 and the first index information is maintained.

Next, the data arrangement of the management information created on the SRAM 5 will be described with reference to FIGS. 27 and 28.
FIG. 27 is a map showing the arrangement of each second management information in the SRAM 5 in this embodiment, and FIG. 28 is a map showing the data arrangement in each second management information of this embodiment.

In FIG. 27, in the memory 21, the second management information 250 corresponding to the first index information 1 is headed up, and the second management information 253 corresponding to the first index information i is arranged below. There is. Second management information 25
The arrangement order of 0 to 253 is the same as the order recorded in the memory 21.

FIG. 28 is a map showing the contents of the second management information 260 corresponding to the first index information. The second management information 260 is composed of 4 bits, and a value obtained by subtracting 1 from the number of packets forming the first index information is represented by 3 bits as the length information 261, and the text presence / absence flag 262 which is auxiliary management information. Is 1 bit.

The above-mentioned fixed length second management information is set to S
By having the RAM 5 in the index information correction means 24
1 adds the value obtained by multiplying the length information 261 of each second management information by the number of bytes 6 of one packet from the beginning of the second management information to obtain the first index information on the memory 21. There is an advantage that the top address can be acquired.

Next, detailed operations of the length information creating means 243, the auxiliary information creating means 244, and the management information outputting means 242 when creating the management information 260 will be described with reference to FIG. FIG. 29 is a flowchart showing the operation of the VTR 240 immediately after the tape cassette 23 is inserted.
The variables will be described below.

The MADR is the memory 2 as in the third embodiment.
In the address counter when reading 1, the initial value is address 0, and 6 is added to pay attention to the packet header.

RADR is an address counter for reading and writing the management information in the SRAM 5. The initial value is the address 0, which is incremented by 4 bits. PLEN is a variable for counting the number of packets forming one first index information, and the maximum value is 8.

The operation will be described below, but all the data in the SRAM 5 is flip-flopped by a step (not shown).
It is assumed to be h. Length information creating means 243
Initializes each variable in steps 270-272,
In steps 273 to 275, the first index information is discovered, and the number of packets forming the immediately preceding first index information is stored in PLEN to make it the first management information.
At the same time, the auxiliary information creating means 244 creates the value of the text flag of the immediately preceding first index information as auxiliary management information, and sends the above first management information and auxiliary management information to the management information output means 242. Next, in the management information output means 182, in step 276, the PLE which is the first management information.
N is written in RADR, and in step 277, the text presence / absence flag, which is auxiliary management information, is written in RADR. When the first index information is completed in step 275, the reading is completed in step 278 and the process is ended. However, when the next first index information is found in step 275, the process returns to step 273 again and a long time is returned. The processing of the information creating means 243 is continued.

By performing the above operation, the second
Management information can be created, and in addition to the above-mentioned advantages, the capacity for the second management information corresponding to the first index information of the SRAM 5 is 1/4 of that of the fourth embodiment. Therefore, there is an advantage that the cost required for the SRAM can be further reduced.

[0105]

As is apparent from the above description, according to the first invention, the second index information creating means stores the first index information recorded in the first storage means having a slow access speed. After the second index information is stored in the second storage device having an access speed faster than that of the first storage device and the second index information is created and deleted by the index information correction means, the first index information creation means By writing back the information to the storage means of No. 1,
Since the index information correction unit does not need to access the first storage unit, the number of times the first storage unit is accessed is reduced as a whole, and the processing speed can be improved.

Further, according to the second invention, the second index information creating means arranges the respective second index information in the order of the tape position of the corresponding program. Therefore, for example, when the tape is overwritten, The processing of the index information correction means when displaying the index information becomes faster.

Further, according to the third invention, the second index information output means includes the respective first index information,
The auxiliary information corresponding to each of the first index information is adjacently recorded in the second storage means as the second index information, and after the second index information is created and deleted by the index information correction means, the first index information is stored. The index information creating means adds the supplementary information presence / absence information to the first index information and writes the supplementary information and the area separately, so that the correspondence relation between the first index information and the supplementary information at the time of the processing of the index information correcting means. Can be easily obtained, so that the processing when using the supplementary information becomes faster.

Further, according to the fourth invention, the fixed length address information of each index information created by the address information creating means becomes the second management information by the management information output means,
Since it is recorded in the second storage device, the start address of the index information can be easily obtained during the processing of the index information correction means, and the processing speed is increased, and the capacity of the second storage device is stored in the first storage means. Compared to this, the cost can be reduced because it can be reduced.

Further, according to the fifth invention, the length information of each index information created by the length information creating means becomes the first management information having a fixed length, and the management information output means provides the second management information as the second management information. Since it is recorded in the second storage device, the length information, which is always shorter than the address information, becomes the second management information, and the capacity of the second storage device is smaller than that of the invention of item 5 of the present application. Has the effect of cost reduction.

Further, according to the sixth invention, the auxiliary management information creating means sends the auxiliary management information extracted from the index information to the management information outputting means, and the second management information is made to be the second management information together with the first management information. Since the information is recorded in the storage device, the management information correction means rarely accesses the first storage means with respect to the information indicated in the auxiliary management information, so that the processing becomes faster.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a VTR 1 according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the structure of a tape cassette with memory 23 used in the VTR of the first to fifth embodiments.

FIG. 3 is a memory 21 in the first, second and fifth embodiments.
Map showing the placement of packets in

FIG. 4 is a memory 21 in the first, second and fifth embodiments.
Map showing the placement of index information in the

FIG. 5 is a map showing the structure of a program start position packet 30 in the first, second and fifth embodiments.

FIG. 6 is a map showing the structure of a program end position packet 40 in the first to fifth embodiments.

FIG. 7 is a map showing the structure of a recording start time packet 50 in the first to fifth embodiments.

FIG. 8 is a map showing the structure of a recording end time packet 60 in the first to fifth embodiments.

FIG. 9 is a map showing the structure of a broadcast station genre packet 70 in the first to fifth embodiments.

FIG. 10 is a block diagram showing the configuration of a second index information creation means 12 of the second embodiment.

FIG. 11 is a flowchart showing the operation of the index information order changing unit 91 in the second embodiment.

FIG. 12 is a map showing the arrangement of the second index information in the SRAM 5 in the second embodiment.

FIG. 13 is a diagram showing a recording state of a program recorded on a video tape 20 in the second embodiment.

FIG. 14 is a map of the memory 21 showing an example of the relationship between the first index information and the first text information in the third and fourth embodiments.

FIG. 15 is a map showing the structure of a program start position packet 37 in the third and fourth embodiments.

FIG. 16 is a map showing the structure of a text packet 80 in the third and fourth embodiments.

FIG. 17 is a map showing the relationship between the first index information and the first text information recorded in the memory 21 in the third and fourth embodiments.

FIG. 18 is a block diagram showing the configuration of the main part of the VTR 130 of the third embodiment.

FIG. 19 is a flowchart showing the operation of the text information combining means 132 in the third embodiment immediately after cassette insertion.

FIG. 20 is a flowchart showing the operation immediately before the eject operation of the text information separating unit 133 in the third embodiment.

FIG. 21 is a map showing the relationship between the second index information and the second text information recorded in the SRAM 5 in the third embodiment.

FIG. 22 is a block diagram showing the configuration of the main part of the VTR 180 of the fourth embodiment.

FIG. 23 is a map showing the arrangement of the respective second management information in the SRAM 5 in the fourth embodiment.

FIG. 24 is a map showing data arrangement in each second management information in the fourth embodiment.

FIG. 25 is a flowchart showing the operation of the address information creating means 183, the auxiliary management information creating means 184, and the management information order changing means 182 immediately after the tape cassette 23 is inserted in the fourth embodiment.

FIG. 26 is a block diagram showing the configuration of the main part of the VTR 240 of the fifth embodiment.

FIG. 27 is a map showing the arrangement of second management information in SRAM 5 in the fifth embodiment.

FIG. 28 is a map showing the arrangement of data in each second management information in the fifth embodiment.

FIG. 29 is a flowchart showing the operation of the length information creating means 243, the auxiliary management information creating means 244, and the management information output means 242 immediately after the tape cassette 23 is inserted in the fifth embodiment.

FIG. 30 is a block diagram showing the configuration of the main part of a conventional VTR that utilizes a tape cassette with memory.

FIG. 31 is a TOC displayed on a display unit 308 of a conventional example.
Diagram showing an example of information

FIG. 32 is a map showing an example of data arrangement in the memory of the conventional example.

[Explanation of symbols]

1 VTR 2 of the First Embodiment 5 Recording Head 5 SRAM 9 Connector 12 Second Index Information Creating Means 20 Video Tape 21 Memory 22 Cassette Half 23 Tape Cassette 24 Normal Packet Storage Area 25 Information No Area 26 First Index information area 30 Program start position packet 31, 41, 51, 61, 71, 81 Packet header 32, 262 Text presence flag 40 Program end position packet 50 Recording start time packet 60 Recording start date packet 70 Broadcast station genre packet 80 Text Packet 130 VTR 180 of the third embodiment VTR 210 of the fourth embodiment second management information 211 corresponding to the first index information 211 second management information 212, 214 corresponding to the first text information of ID of management information 213 Start address of first index information 215 Start address of first text information 240 VTR of fifth embodiment 260 Second management information 261 corresponding to first index information 261 First index information Length information

Claims (9)

[Claims] 1. A recording operation on a tape of a tape cassette using a tape cassette, wherein a first storage device having an index information area for storing a plurality of first index information relating to a recorded program is attached to the cassette. Recording means for performing at least the tape position information during recording, first reading means for reading at least the first index information from the first storage device, and at least the first storage device for the first storage device. First writing means for writing the first index information, a second storage device for recording the second index information, and the first reading means for at least the second index information from the second storage device. A second read means for reading at a read speed faster than that of the second storage device, and at least the second index to the second storage device. Second writing means for writing the second index information at a writing speed faster than that of the first writing means, and the first index information read by the first reading means for converting the first index information. Second index information output means for creating the second index information and outputting it to the second writing means; and the tape position information from the recording means to obtain the second reading means, the second Using the writing means of the second
Index information correction means for creating and deleting index information of the first index information, and the first index information created by converting the second index information obtained from the second reading means into the first index information. And a first index information output means for outputting to the first writing means. 2. The first index information includes appearance tape position information of a program recorded in the tape cassette, and a second index information output means sets the order of the first index information to the appearance tape. The second index information is converted into the second index information by rearranging in order of the position, and the index information correction means stores the state in which the second index information is arranged in the tape position order of the program corresponding to the second index information. The recording / reproducing apparatus according to claim 1, wherein information is created and deleted. 3. A tape cassette in which a first storage device having an index information area for storing a plurality of first index information relating to a recorded program and an additional information area for storing a plurality of additional information is attached to the cassette. The first index information includes additional information presence / absence information indicating presence / absence of the additional information attached thereto, performs a recording operation on the tape of the tape cassette, and outputs at least tape position information during recording. Recording means, first reading means for reading at least the first index information from the first storage device, and first writing means for writing at least the first index information in the first storage device. A second storage device for recording second index information, and at least the second storage device from the second storage device. Second reading means for reading the dex information at a higher reading speed than the first reading means, and at least the second index information to the second storage device is faster than the first writing means. Second writing means for writing at a writing speed, the first index information and the additional information read by the first reading means are adjacent to the additional information to which the first index information is attached. Second index information output means for converting to the second index information and outputting to the second writing means by rearranging so as to obtain the tape position information from the recording means, and The second reading means and the second writing means are used to make the second
Index information correction means for creating and deleting the second index information while maintaining a state in which the first index information corresponding to the index information and the auxiliary information attached to the first index information are adjacent to each other. , Outputting the supplementary information to the first writing unit so that the supplementary information is separated from the second index information obtained from the second reading unit and written in the supplementary information area, and the first index is output. A recording / reproducing apparatus comprising: first index information output means for adding the additional information presence / absence information to information and outputting the information to the first writing means. 4. The first index information includes appearance tape position information of a program recorded in the tape cassette, and the second index information output means corresponds to the order of the second index information by the corresponding first index information. 1. Converting the index information of No. 1 in the order of the appearance tape position, and creating the second index information while the index information correction means stores the state in which the second index information is arranged in the order of the tape position of the corresponding program The recording / reproducing apparatus according to claim 3, wherein the recording / reproducing apparatus is deleted. 5. A tape cassette in which a first storage device having an index information area for storing a plurality of variable-length index information relating to a recorded program is attached to the cassette is used, and the tape cassette recording operation is performed. Recording means for outputting at least tape position information during recording, first reading means for reading at least the index information from the first storage device, and writing at least the index information to the first storage device. A first writing unit; a second storage device that stores second management information that manages the index information recorded in the first storage device; and at least the management from the second storage device. Second reading means for reading information at a higher reading speed than the first reading means; and the second storage device. A second writing means for writing at least the management information at a writing speed higher than that of the first writing means.
Writing means and the address of each index information obtained from the first reading means in the first storage device is detected, and the address information of each index information is created to perform the first management. Address information creating means to be information, management information outputting means for outputting the first management information from the address information creating means to the second writing means as the second management information, and the recording means After obtaining the tape position information, the second
By obtaining the address information of the index information from the second management information read via the reading means of the above, the index information is created and deleted through the first reading means and the first writing means. A recording / reproducing apparatus comprising: index information correcting means. 6. An index information area for storing a plurality of index information relating to a recorded program,
A first having an incidental information area for storing a plurality of incidental information
A tape cassette having a storage device attached to the cassette is used, the index information includes additional information presence / absence information indicating the presence / absence of the additional information attached thereto, and the address information creating unit includes the first information of the index information.
Second address created from the address in the first storage device of the first address information created from the address in the first storage device and the additional information attached to the index information.
6. The recording / reproducing apparatus according to claim 5, wherein the address information and the address information are adjacent to each other to form the first management information. 7. The index information includes appearance tape position information of a program recorded in the tape cassette, and the management information output means obtains the order of the first management information from the first reading means. 7. The recording / reproducing apparatus according to claim 5, wherein the second management information is obtained by changing the appearance tape position order indicated by the index information corresponding to the first management information. 8. A tape cassette having a first storage device attached to the cassette, the first storage device having an index information area for storing variable length index information which does not exceed a plurality of predetermined lengths relating to a recorded program. Recording means for performing a recording operation on the tape of the cassette and outputting at least tape position information during recording; first reading means for reading at least the index information from the first storage device; and the first storage device. A first writing unit that writes at least the index information to the second storage device; a second storage device that stores second management information that manages the index information recorded in the first storage device; Read at least the second index information from the storage device at a higher read speed than the first reading means. Second reading means, second writing means for writing at least the second index information into the second storage device at a writing speed higher than that of the first writing means, and the first reading means. A length information creating means for detecting the length of each of the index information obtained from the index information, creating the length information of each of the index information as first management information, and the length information creating means from the length information creating means. Using the first management information as the second management information, the management information output means for outputting to the second writing means, the tape position information from the recording means, and the second management information
Index information correction means for creating and deleting the index information through the first reading means and the first writing means by obtaining the length information of the index information read through the reading means. A recording / reproducing apparatus comprising: 9. An auxiliary management information creating unit for extracting a part of the index information obtained from the first reading unit and creating fixed-length auxiliary management information, wherein the management information output unit is the same. The first management information corresponding to the index information and the auxiliary management information are combined into second management information, and the index information correction means uses the second reading means and the second writing means. 9. The recording / reproducing apparatus according to claim 5, wherein the auxiliary management information is rewritten.