JPH02214082A - Recording medium and its recording and reproducing device - Google Patents

Abstract

PURPOSE:To select a reproducing form previously set by providing a storage part from which readout can be optionally performed and instantaneously grasping the content of a recording medium in a tape system even if it exists in any position. CONSTITUTION:The device is formed of the memory data storage part 112 from which the readout can be optionally performed and the recording medium part in the tape system in the storage part 112. The storage part 112 outputs data to a display control part 104 with a control signal from a memory control part 102 so as to control the display of the display part 103. The address information of the actual state and the scene of a moving picture is recorded in a tape part 101b in a moving picture recording medium 101. The address information is given in four figures on a control track and expressed in serial number from the beginning to the end of the tape. The information concerning the scene and relative information between the scenes in the tape part 101b are stored in a memory part 101a. Thus, only a part previously specified in the recording medium can be reproduced and the content of the recording medium can be instantaneously grasped even if it exists at any position. Therefore, the form necessary for reproduction is selected and a reproducing position is previously set.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates, firstly, to a recording medium and a recording/reproducing apparatus for the same, which reproduces content specified from a series of recorded contents according to a previously specified reproduction format.

The second invention relates to a recording medium and its recording/playback device that can display any number of frames in a recorded moving image at any time.

BACKGROUND OF THE INVENTION Recently, products such as VTRs and video discs that have functions such as high-speed cueing functions and indexing functions to realize cueing functions have become common.

For example, Nikkei Electronics (Nn4.12.1987.1-12 issue pp 5) published by Nikkei McGraw-Hill.
7-68) and IE Transaxilanon Consumer Electronics (Holume 0E
-33, number 3. August 1987 220-226
Page) (I BE Transaction on C
onsumerElectronics (Vol.
C! B-33, Yang 3, AUGUSTl 987 pp
220-225) ) VISS and VASS functions of the VH8 format video described in K.

To briefly explain the VISS and VASS functions, a cue signal can be automatically or manually recorded on the recording start path, and a cue signal can also be recorded manually during playback. .

Problems to be Solved by the Invention However, in general, in order to selectively play back only the desired part or parts from a huge amount of video sources recorded on video tapes, video disks, etc., it is necessary to select the start address of that scene. There was a problem in that the end address and end address had to be written on a separate device from the video recording medium, and humans had to perform operations based on the address information. Furthermore, it has been impossible to realize a variety of playback modes, such as playing back a plurality of scenes in a specified order or starting playback based on a certain event. Furthermore, it is difficult to instantly grasp the contents of a moving image recorded on a tape.

In view of the problems of the conventional methods described above, the present invention provides address information representing scenes and relational information representing relationships between scenes.
By storing the actual video not in the tape-shaped recording medium where it is recorded, but in a separate storage medium that can be read at any time, the video can be stored within the tape no matter how much the tape-shaped recording medium is wound. You can immediately understand what is happening,
To provide a moving image recording/playback device capable of taking a preset playback mode. Furthermore, by recording image data of any number of frames of a moving image in a storage unit that can be read out at any time, the present invention provides a device that can instantly grasp the contents of a moving image recorded on a tape from images.

Means for Solving the Problem First, first address information and last address information of a group of consecutive arbitrary frames recorded in a moving image recording medium, a serial number representing each of said moving image recording medium, and said For a moving image recording medium that has in the recording medium a character group indicating individual contents of information representing continuous contents and information indicating a relationship between the frame group, the recording/reproducing device extracts a frame or a frame group from the recording medium. address reading means for reading address information attached to the address reading means; address reading control means for controlling the address reading means; memory data storage means for storing contents of a storage section of the recording medium that can be read at any time; and the memory. memory data control means for controlling the data storage means; comparison means for comparing address data from the memory data storage means and address data from the address reading means; and a comparison means for interpreting input from the user and controlling the address reading. input control means for giving instructions to the memory data control means; display means for displaying data in the memory data storage means and data in the input control means; display control means for controlling the display means; and input control means for controlling the display means. The apparatus is provided with a mechanism control means for controlling the mechanism based on information from the comparison means and the comparison means, and a moving image recording and reproducing mechanism means for recording and reproducing moving images under control from the mechanism control means.

Second, image data of any frame in a group of continuous frames of a moving image recorded in the tape-type recording medium and a serial number representing each of the image data are stored in the storage unit that can be read at any time. For a moving image recording medium having a video recording medium, the recording and reproducing apparatus includes a reproducing means for reading image data of the moving image recorded on the moving image recording medium, an image memory means for storing arbitrary image data from the reproducing means,
an image capture control means for controlling the capture of an image from the reproduction means to the image memory means; and an image capture control means for controlling reading of data from the memory unit which can be read at any time, and a memory unit which can read at any time the data from the image memory means. memory data control means for controlling writing to the memory data control means; input control means for interpreting input from a user and giving instructions to the image capture control means and the memory data control means; and image data from the reproduction means and the image memory means. a display means for displaying data of the input control means; a display control means for controlling the display means; a mechanism control means for controlling a mechanism based on information from the input control means; A moving image recording and reproducing mechanism means for recording and reproducing moving images under the control of is provided.

First, the present invention has address information representing scenes and relationship information representing relationships between scenes in the recording medium, so that no matter how much the tape on which the actual state of the moving image is recorded is wound, the tape The content stored within the device can be displayed, and a preset playback format can be configured based on instructions from the outside.

Second, by recording an arbitrary number of frames in a video in a storage unit in a recording medium that can be read at any time, and displaying this as an image, the user can easily understand the content of the video stored on the tape. This makes it instantly recognizable.

Embodiment FIG. 1 is a block diagram of a recording/reproducing apparatus according to a first embodiment of the present invention. This device uses a moving image recording medium having memory and tape that can be accessed at any time, and reproduces scenes in this moving image recording medium in various forms. This memory contains address information that is a set of two frame addresses representing the first and last frames of a scene recorded on a video recording medium, scene names, and relationship information that represents the relationship between scenes. There is. Therefore, by using this information as control information for the playback device, it is possible to play a variety of things, such as playing only a desired scene, playing multiple scenes in a desired sequence, or starting playback of a scene based on a certain event. It becomes possible to play various forms. Here, a scene refers to a moving image composed of a group of consecutive frames arbitrarily selected from a group of frames continuously recorded on a moving image recording medium. In this embodiment, for the sake of simplicity, a case will be shown in which the present invention is applied to a VH8 system VTR. Note that the indexing and addressing functions of current VH8 system VTRs are functions.In the VISS and VASS systems, it is not possible to accurately address each frame, but it is possible to address the periphery of a desired frame. Essentially, the invention can be applied.

In FIG. 1, 101 is a moving image recording medium.

101a is a memory section provided on the surface of the casing of the moving image recording medium 101, and 101b is a tape section of the moving image recording medium 1o1. 106 is a keyboard for inputting the playback method, start address, and end address. 106
111 is an input control unit that receives data from the keyboard 105; 111 is an input control unit that inputs data from the keyboard 105;
This is a recording/playback mechanism that performs fast forwarding and rewinding. 11o
109 is a mechanism control unit that controls the recording and playback mechanism unit 111;
is an address reading section that reads address data from the tape section 101b. Reference numeral 108 denotes an address read control unit which receives a control signal from the input control unit 106 and controls the address read unit 109. A memory data control section 102 receives control signals from the input control section 106 and the mechanism control section 11.degree., and interprets and writes data into a memory data storage section 112, which will be described later. 112 is a memory data control unit 102 and a memory unit 10;
1a as input/output, memory data control unit 102
This is a memory data storage unit that receives a signal from the memory as a control signal input. Reference numeral 107 is a comparison unit that compares the address data from the memory data storage unit 112 and the address data from the address reading unit 109, and 103 is a display unit that displays the contents of processing. 104 is a memory data storage unit 11
This is a display control section that receives data from 2 and the input control section 106 and controls the display of the display section 1o3. In the figure, solid lines represent data lines and dotted lines represent control signal lines.

The operation of the above configuration will be explained below.

First, the contents recorded on the moving image recording medium 101 will be explained. The tape section 101b contains two pieces of information: the actual state of the moving image and scene address information. This address information is
It is written on the VH8 style control track. Please use 4-digit BCD according to VASS regulations.
It can be expressed from 011 to 9999''.Here, for simplicity, we will use serial numbers from the beginning to the end of the tape.

The memory section 1o1a stores information regarding scenes in the tape section 101b and information on relationships between scenes. Second
The figure is an example of a storage format of information regarding scenes and information on relationships between scenes in the memory. Each word is 2 bytes, and information about scenes and information about relationships between scenes are stored in this order. Information about the scenes for one scene is by reference number,
It is expressed in the order of start address, end address, and free viewing. A serial number is a number assigned to a scene and is unique within that video recording medium. The serial number of the first specified scene is set to 1, and is incremented by 1 each time. The start address is the address that represents the first frame of the scene, and the end address is the address that represents the last frame of the scene. You can write anything you like in the free view, including scene descriptions and notes. Assuming that alphanumeric characters and katakana characters can be used, and that up to 14 characters can be used, all the information for one line can be expressed in 1° word. The relationship information between scenes is information representing the playback format. In the form of control commands for the memory data control unit 102, 66,536 types of commands can be expressed as one word and one command. As an example, a trial calculation will be made assuming that a memory with a capacity of 64 bits is used. If three-fourths of the total is used for scene-related information and the rest is used for relationship information between scenes, information for approximately 300 scenes and 1024 pieces of relationship information can be stored.

There are several ways to implement the memory section, but here we will use an EEPRO in the memory section 101a in the video recording medium.
A configuration in which RAM is used as the memory data storage unit 112, which is a memory unit on the device side, will be described using M. EEF
ROM is a non-volatile memory that does not require a power source except during operation, but it takes a long time to rewrite, so it is not suitable for frequent rewriting or high-speed writing. Although RAM is a volatile memory whose contents disappear when the power is turned off, it is suitable for high-speed access because reading and writing time is short.

Therefore, during operation, work is performed using the RAM within the device, and when a power-off instruction is issued, the contents of the AM are transferred to the EEPFLOM in the video recording medium, and the information is retained even after the power is turned off. If you want to operate it again, press E in the video recording medium.
The contents of the EFROM are transferred to the RAM within the device, and operations are performed using the RAM as described above.

Next, a method of reading out and reproducing information from the memory section 1o1a will be explained based on the flowchart of FIG. When the video recording medium 101 is inserted into the recording/playback mechanism section 111, the memory data control section 102 controls the memory section 101a.
The data is read out from the memory data storage section 112 (FIG. 3a), and the read data is displayed on the display section 103 (FIG. 3b).

An example of the display is shown in FIG. When the user inputs a reproduction method from the keyboard 105 (FIG. 3C), the data enters the memory data control section 102 via the input control section 106. The memory data control unit 102 sends the start address (S) and end address (E) of the scene to be reproduced from the memory data storage unit 112 to the comparison unit 107 (FIG. 3d).
). The address read control unit 108, which has received a control signal from the input control unit 106, sends the address data (T) of the current frame from the tape unit 101b to the read unit 109.
), and the address data (T) is sent to the comparator 1'Q7 (Fig. 3e). The comparison unit 107 checks whether the address data (T) is the same as the start address (S) (FIG. 3f), and if they are the same, the comparison unit 1
A signal to that effect is sent from 07, and the mechanism control section 110 instructs the recording/playback mechanism section 111 to perform playback (FIG. 3j). If the address data (T) of the tape is larger than the start address (S), rewinding is performed, and if it is smaller, fast forwarding is performed (Fig. 3g+J').

During playback, address data (T) is read from the tape by the reading unit 109, and this continues until the address data (T) becomes equal to the end address (E) (1 in FIG. 3). When the address data (T) becomes equal to the end address (E), the comparison unit 107
Tell 0 that. The mechanism control unit 110 instructs the recording/playback mechanism unit 111 to stop (m) in FIG.
The memory data control unit 102 is informed of this fact. If there are other scenes to be played, the process from d onward in FIG. 3 is repeated; if there are no more scenes, the process ends (n in FIG. 3).

Next, a method for writing information into the memory section 101a will be described. First, writing of information regarding a scene will be explained based on the flowchart of FIG. 6. The mechanism control section 110 puts the recording/playback mechanism section 111 into a playback or recording state (FIG. 6a).

The user presses the keyboard 106 at the beginning of the scene he wishes to write into memory (Figure 6b). In response to a signal from the input control unit 10θ, the address read control unit 108 instructs the address read unit 109 to read address data.The retrieved address data is sent to the memory data control unit 102. The memory data control section 102 writes this address data into the memory data storage section 112 as a start address (FIG. 6C). The address data is further displayed on the display section 103 by the display control section 104 (FIG. 6d). When the keyboard 105 is pressed in the same way at the end of the scene (Fig. 6 e), the input control unit 10
6, the address read control unit 10B instructs the read unit 109 to read address data. The read address data is sent to the memory data control section 102. The memory data control unit 102 writes this address data into the memory data storage unit 112 as an end address (FIG. 6f). Further, this data is displayed on the display section 103 by the display control section 104 (FIG. 6g), and the user can write up to 14 characters per scene in the free view. Character data entered from the keyboard 105 is input to the input control unit 1.
06 to the memory data control unit 102. The memory data control section 102 writes this character data into the memory data storage section 112. Furthermore, this character data is displayed on the display section 103 by the display control section 104 (FIG. 6h).

When an instruction is issued to turn off the power from the video recording medium 101, such as by removing the video recording medium 701 from the recording/playback mechanism section 711, the memory data control section 102 transfers data from the memory data storage section 112 to the memory section 101a. 1) After the transfer is complete, turn off the power.

Next, the sixth section explains how to write relational information between scenes.
This will be explained based on the diagram. The user moves the cursor to the program position among the information displayed on the display section 103 as shown in FIG. 4, and inputs the serial number and control command from the keyboard 105 (FIG. 6a). Examples of control commands include w30: wait 30 seconds, key: wait until key input, and so on. The input data is sent to the memory data control section 102 and the display control section 104 by the input control section 106. The memory data control unit 102 writes this data into the memory data storage unit 112 as inter-scene relationship information (FIG. 6b).

Furthermore, this data is displayed on the display section 10 by the display control section 104.
3 (Figure 6C). The video recording medium 10, such as taking out the video recording medium 101 from the recording/playback mechanism section 111.
When an instruction to turn off the power is issued from 1, the memory data control unit 102 transfers data from the memory data storage unit 112 to the memory unit 10.
To transfer data to 1a (FIG. 6d), after the transfer is completed, turn off the power.

The case of erasing or rewriting data will be described below. The user inputs a rewriting or erasing command and a serial number from the keyboard 106. The input data is sent to the memory data control unit 1o2 via the input control unit 106. The memory data control unit 1o2 erases specified data in the memory data storage unit 112.

If it is desired to perform rewriting, a write operation as shown in FIGS. 6 and 6 is performed.

FIG. 7 is a block diagram of a recording/reproducing apparatus according to a second embodiment of the present invention. This apparatus uses a moving image recording medium having a memory that can be accessed at any time and a tape, and stores any frame of the moving image stored on the tape in the memory that can be accessed at any time. By displaying the image information in the memory as an image, it becomes possible to instantly grasp the contents of the moving image stored in the tape.

In FIG. 7, 701 is a moving image recording medium, 701a is a memory section of the moving image recording medium 701, and 701b is a tape section of the moving image recording medium 701. 705 is a keyboard for inputting control commands for each part, and o6 is a keyboard 706
This is an input control unit that receives data from the . Reference numeral 711 denotes a recording and reproducing mechanism section that performs recording, playback, fast forwarding, and rewinding of the video recording medium 701; 710 a recording and reproducing mechanism section 7;
This is a mechanism control unit that controls 11. 709 is tape part y
o1b is also a playback head that reads out image data. 7
Reference numeral 08 denotes an image memory section which receives data from the playback head 709 and the memory section 701a as an image input, and receives a signal from the image capture control section Q7 as a control signal input.

707 receives the control signal from the input control unit 706,
This is an image capture control unit that controls the image memory unit 708. 702 is a memory data control unit that receives a control signal from the input control unit Toe and controls reading and writing of data to the memory unit 701a; 703 is a display unit that displays processing details; and 704 is an input control unit 706 and an image memory. This is a display control section that receives data from the section 70B and the playback head 709 and controls the display section 703.

The operation of the above configuration will be explained below.

First, the contents recorded on the moving image recording medium 701 will be explained. The tape section 701b contains the actual state of the moving image. A plurality of pieces of frame information taken in from the tape section 701b are stored in the memory section 01a. FIG. 8 is an example of how frame information is stored in memory. One word is 8 bits, and one frame's worth of information is expressed in the order of serial number and image data. A serial number is a number assigned to a frame and is unique within that video recording medium.

The serial number of the first designated frame is set to 1, and is sequentially incremented by 1. As an example, the image information is data that can express the size of one frame of a moving image that can be displayed on the display unit 703 by one-quarter vertically and one-fourth horizontally, that is, one-sixteenth. Let it represent one frame. One frame of an NTSO video has 480 pixels vertically and 480 pixels horizontally in the visible part, and if each pixel uses 6 to 8 bits in color, it takes about 1/16th of the data of one frame to store it. 100 bits are required. As an example, if four memories each having a capacity of 266 bits are used, 10 types of frame information can be stored.

Although there are several possible ways to implement the memory section 701a, it is assumed that the same configuration as that described in the first embodiment is used.

Next, information is read from the memory section 701a, and the display section 701a is read out.
03 will be explained based on the flowchart of FIG. When the moving image recording medium 701 is inserted into the recording and reproducing mechanism section 711, the memory data control section 702 reads data from the memory section 701a to the image memory section 708 (FIG. 9a).

The read data is displayed on the display section 703 by the display control section 704 (FIG. 9b). FIG. 10 shows an example of the display. In addition, in FIG. 10, X indicates the display section 7.
03 indicates the horizontal length of the screen, and y indicates the vertical length. The user can understand what kind of content is recorded on the video recording medium 701 by this display.

Next, a method for importing images from the tape section 701b to the image memory section 70B will be explained based on the flowchart of FIG. 11. The mechanism control section 710 puts the recording/playback mechanism section 711 into a playback or recording state (FIG. 11a). The image data read from the playback head 709 is sent to the display control unit o4, and the display control unit 704 displays the read moving image on the display unit 703 (FIG. 11b). The user selects the frame that the user wants to write into the image memory section 70B from the display section 70.
3 is displayed, press OK6 on the keyboard (1st
Figure 1C). Then, the input control unit 706 sends a control signal to the image capture control unit 707. Image capture control unit 7
07 adds a serial number to the image data read from the playback head 709 and stores it in the image memory unit 708. The image data stored in the image memory section 708 is data representing one-sixteenth of the size of one frame of the moving image displayed on the display section 703 (FIG. 11d). The image capture control section 707 sends the data in the image memory section 708 to the display control section 704, and the data is further displayed on the display section 703 (FIG. 11e). If there are still frames to be captured, steps a to e in FIG. 11 are performed; if there are no more frames to be captured, the process ends (FIG. 11f). Furthermore, by first specifying the serial number and performing an image capture operation, it is possible to change the image information in the set frame information.

When all the work is completed and an instruction is issued to turn off the power to the video recording medium 701, such as by removing the video recording medium 701 from the recording/playback mechanism section 711, the memory data control section o2
transfers the contents of the image memory section 70B to the memory section 701a, and turns off the power after the transfer is completed.

It is also possible to use the first and second embodiments described above to realize a device that has the functions of both embodiments.

As described in detail about the invention, by using the recording medium and recording/reproducing apparatus of the present invention, it becomes possible to reproduce only a pre-specified location within the recording medium. Furthermore, since a storage unit that can be read at any time is used, the contents of the tape-type storage medium can be instantly grasped no matter where the tape-type storage medium is located. Therefore, there is no need to play back all the recorded content, and it becomes possible to select only the part that you want to play. Furthermore, by providing relational information between scenes, it becomes possible to structure a plurality of scenes and take a variety of playback forms, such as condylar playback or playback based on external events. In addition, by storing any frame in the video stored on the tape in a memory that can be accessed at any time and displaying it at any time, you can instantly grasp the contents of the video stored on the tape. It becomes possible to do so. These can be expected to be used in fields that require a variety of playback formats, such as computer engineering and games. Another application of videotapes is that a table of contents can be attached to the videotape.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a recording and reproducing apparatus according to a first embodiment of the present invention, FIG. 2 is a conceptual diagram illustrating an example of how the memory section of the apparatus is used, and FIG. 3 is a flowchart of playback operations in the apparatus. , FIG. 4 is a diagram showing the display of the memory contents,
FIG. 6 is an operational flowchart for writing data to the same memory, FIG. 6 is an operational flowchart for writing related information to the same memory, and FIG. 7 is a block wiring diagram of a recording/reproducing apparatus in a second embodiment of the present invention. , FIG. 8 is a conceptual diagram illustrating an example of the use of the memory section of the same device, FIG. 9 is a flowchart of reading and displaying the memory contents in the same device, and FIG. 10 is a diagram showing the display of the contents of the image memory. , FIG. 11 is a flowchart of the operation of importing an image into the image memory unit. 1o1.701...Video recording medium, 102.702.
...Memory data control section, 103.703...Display section, 104.704...Display control section, 106.706.
・・Keyboard, 106.706 ・・Input control unit, 1
07... Comparison unit, 108... Address read control unit, 109... Address read unit, 110.710
. . . Mechanism control section, 111. 711 . . . Recording/playback mechanism section, 70 End... Image readout control section, 708 . . . Image memory section, 709 . . . Playback head. Name of agent Patent attorney Shigetaka Awano 1 fool

Claims (5)

[Claims] (1) A recording medium having a tape-type recording medium section and a storage section that can be read at any time. (2) The first address information and the last address information of the continuous contents recorded in the tape-type recording medium unit are information representing the continuous contents, and the information representing the continuous contents and the last address information are the information representing the continuous contents. A serial number representing each piece of information representing the continuous content, a character group corresponding to each piece of the information representing the continuous content, and information indicating a relationship between the pieces of information representing the continuous content in the memory unit that can be read at any time. 2. The recording medium according to claim 1, comprising: (3) A recording medium according to claim 2, an address reading means for reading address information attached to a frame or a group of frames from the recording medium, an address reading control means for controlling the address reading means, and the recording medium. a memory data storage means for storing data in a recording section that can be read at any time; a memory data control means for controlling the memory data storage means; address data from the memory data storage means and address data from the address reading means. an input control means for interpreting the input from the user and giving instructions to the address read control means and the memory data control means;
a display means for displaying data in the memory data storage means and data in the input control means; a display control means for controlling the display means; and a mechanism control based on information from the input control means and the comparison means. 1. A recording and reproducing apparatus comprising: a mechanism control means for recording and reproducing moving images; and a recording and reproducing mechanism means for recording and reproducing moving images under control from the mechanism control means. (4) image data of any frame in a group of consecutive frames of a moving image recorded in a tape-type recording medium;
A recording medium having a serial number representing each of the image data in the storage unit that can be read at any time. (5) A moving image recording medium according to claim 4, and a reproduction means for reading image data of a moving image recorded on the moving image recording medium;
an image memory means for storing arbitrary image data from the reproduction means; an image capture control means for controlling the capture of images from the reproduction means to the image memory means; and reading of data from the storage unit that can be read at any time. a memory data control means for controlling the writing of data in the image memory means into the storage section that can be read at any time; and a memory data control means for interpreting input from a user and instructing the image capture control means and the memory data control means. an input control means for providing, a display means for displaying image data from the reproduction means and the image memory means and data of the input control means, a display control means for controlling the display means, and information from the input control means. What is claimed is: 1. A recording and reproducing apparatus comprising: a mechanism control means for controlling the mechanism based on the mechanism; and a recording and reproducing mechanism means for recording and reproducing moving images under control from the mechanism control means.