JPH03286447A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To control only a prescribed program into an erasure permitted state or an erasure inhibited state by recording erasure permission information or erasure inhibition information into a control data base recording area provided in a recording track as program information corresponding to every recorded program. CONSTITUTION:The erasure permission information or the erasure inhibition information is recorded in the control data base recording areas FAVA, FAVV as the program information corresponding to every program D1 to D4 recorded in the recording tracks TA, TB on a recording medium 36. Besides, the corresponding programs D1 to D4 are erased or inhibited to erase according to the erasure permission information or the erasure inhibition information. Thus, the erasure permission or the erasure inhibition of the program is designated separately, and these are recorded previously in the control data recording area FAVV or FAVA ask the information of each program. Thus, when the recording medium 36 is loaded, the program information is read out, and the erasure inhibited program can be prevented from being erased.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A: Industrial field of application B: Outline of the invention C: Conventional technology - Problems to be solved by the invention E! IN! Means for solving fi (Fig. 1, Fig. 3, Fig. 6, Fig. 12 to Fig. 14) 1 Effect (Fig. 3, Fig. 12, Fig. 13, and Fig. 14) G
Example (G1) Overall configuration of a video tape recorder (Fig. 1) (
G2> Functional blocks of video tape recorder (Figure 2) (G3) Video tape recording format (Figures 3 to 6) (G4) Video tape recorder setting process (Figures 7 to 11) (G5 ) Recording permission/prohibition processing operation (Figs. 12 to 14) (G6) Other embodiments H Effects of the invention A Industrial field of application The present invention relates to a recording and reproducing apparatus, for example, a video tape for recording and reproducing programs. It is suitable for application to consumer electronic equipment such as recorders.

B Summary of the Invention The present invention enables a recording/reproducing device to erase only a predetermined program on a recording medium by specifying erasure permission or erasure prohibition for each of a plurality of programs recorded on a recording medium. It can be controlled to allow or prohibit erasure.

C. Prior Art Conventional consumer video tape recorders record multiple programs on a longitudinally extending videotape.
A cue signal is recorded at the beginning of each program. For example, when a user wants to play a desired program from a recorded tape, the user must first set the video tape recorder to search mode and use the video tape to cue. After fast-forwarding the signal to a position where it can be played back, the user first switches to playback mode and checks whether it is the program he or she wants to watch.

Problem to be Solved by the Invention In this type of video tape recorder, a claw is provided on the casing of the video cassette to prevent accidental erasure, and by breaking this claw, the video cassette can be recorded. Controls are in place to prohibit such activities.

Therefore, even if a video cassette with a broken claw to prevent accidental erasure is loaded into a video tape recorder and an attempt is made to execute the recording mode, the video tape recorder will not start recording.

However, if the accidental erasure prevention claw is broken to prevent erasure, all information recorded on the video tape of the video cassette becomes erasure prohibited, for example, the video tape of one video cassette. When a plurality of programs are recorded within a recording medium, it is difficult to set only a predetermined program among the plurality of programs to an erasure-inhibited state.

The present invention has been made in consideration of the above points, and attempts to propose a recording/playback device that can control erasure prohibition of only desired programs among a plurality of programs recorded in one recording medium. It is something.

E! ! Means for Solving the Problem In order to solve this problem, in the present invention, management database recording areas Favv, F□ are provided in the recording tracks TA, TB on the recording medium 36.

The management data DAv is recorded in the program D1~ recorded in the recording tracks TA and TB using the management data I)av.
In the recording and reproducing apparatus 1 configured to manage D4, erasure permission information or erasure prohibition information (B3 ) is recorded in the management database recording area FAVVsFAVA, and the corresponding program (D+-Da) is erased or prohibited from being erased based on the erasure permission information or erasure inhibition information (B3).

1 Multiple numbers recorded on the recording medium 36 &INDI~D4
By individually specifying erasure permission or erasure prohibition for each program and recording this as each program information in the management data recording area F Avv or FAvA, when the recording medium 36 is loaded This can be read out to prevent deletion of programs that are prohibited from being deleted.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

(G1) Overall configuration of video tape recorder In FIG. 1, 1 indicates a video tape recorder (VTR) as a whole, and a recorded video signal Sl input through a video signal processing section 2 is supplied to the video tape recorder main body 3. As a result, this is recorded, and the reproduced video signal S2 is supplied to the monitor 4 via the video signal processing section 2 as a video output signal S3.

In addition, a control management data processing section 5 is provided, which sends an input/output information signal S4 given from a remote controller 6 to a central processing unit (CPU) 8 for processing control management data via a remote control transmitter/receiver 7. By taking in the control information S5, the control information S5 is sent to the bus 9, thereby controlling the circuit elements that constitute the video signal processing section 2 and the video tape recorder main body 3, and the control information S6 is sent to the video tape recorder main body via the bus 10. By communicating with the central processing unit (CPU) 11 for controlling the mechanism of the video tape recorder body 3,
It is designed to generate a control signal S7 for the mechanism elements constituting the.

The video signal processing unit 2 selects as input the received video signal S11 received by the tuner 21, the external line video signal 312 supplied from the input line of the external video signal source, and the internal synchronization signal S13 generated in the internal synchronization circuit 22. The signal is input to a superimpose fader circuit 24 through a circuit 23, and a recorded video signal S1 is obtained at the output terminal of the superimpose fader circuit 24.

The recorded video signal S1 is supplied to the recording circuit 32 through the recording switching circuit 31, and is recorded on the video tape 36 of the video cassette 35 by the magnetic head 34 through the electromagnetic conversion circuit 33 in the recording mode.

In the reproduction mode, the video signal recorded on the video tape 36 is picked up by the reproduction circuit 37 through the magnetic head 34 and the electromagnetic conversion circuit 33 in sequence, and is picked up by the reproduction switching circuit 38.
is sent to the video signal processing section 2 as a reproduced video signal S2.

This reproduced video signal S2 is further converted into a video output signal S3 by the video processing circuit 40 via the output selection circuit 39, and is displayed on the display screen 4A of the monitor 4.

Control management data processing CPU of control management data processing section 5
Reference numeral 8 indicates the basic data and RAM configuration stored in the ROM basic data memory 43 based on the input/output information signal S4 inputted from the remote controller 6 or the human power information signal S8 inputted from the VTR keyboard 12. Control information S5 and S6 are sent to buses 9 and 10 by processing the processed data stored in the register 44 based on a clock signal from a clock circuit 45.

In this embodiment, a card reader 46 is connected to the bus 9, and the control management data processing CPU 8 is connected to the card reader 46.
6, the basic data read from the IC card 47 can be loaded into the register 44.

If it is necessary to inform the user of the processing results obtained by processing data in the control management data processing CPtJ8 in this way, the control management data processing
The PU8 supplies an image display information signal S14 to the video display processor 41 as part of the control information S5, and uses the image display information signal S14 to store the video RAM.
By supplying the image display signal S15 read from 42 to the superimpose fader circuit 24, a superimposed output is obtained by superimposing the image display signal S15 on the video signal S16 supplied from the input selection circuit 23. By supplying the signal S17 to the video processing circuit 40 through the output selection circuit 39, a video is created by superimposing an image signal consisting of letters, characters, diagrams, etc. on the video signal on the display screen 4A of the monitor 4. The screen is configured to allow interaction with the user by displaying the .

In this embodiment, when an image consisting of letters, characters, diagrams, etc. is displayed on the display screen 4A of the monitor 4, the control management data processing CPU 8 transmits an image signal representing the same image to the remote control transmitter/receiver 7. input/output information signal S from
4 is supplied to the remote controller 6, so that the same image as the display screen 4A of the monitor 4 is displayed on the display screen 6A of the remote controller 6.

Here, the control management data processing CPU 8 uses the control information S5
As part of the process, the write management data 325 related to the recording and playback operations of the video tape recorder main body 3 is passed through the image recording encoder 51, and then sequentially through the recording switching circuit 31, the recording circuit 32, and the electromagnetic conversion circuit 33 to record the video data. tape 3
6, and the management data written in the video recording track is transferred to the electromagnetic conversion circuit 33, the playback circuit 37, and the playback switching circuit 3.
When the data is read through the image recording decoder 52, it can be taken in as read management data S26 via the bus 9.

In addition, in the case of this embodiment, the control management data processing CPU 8 sends write management data S27 similar to the write management data S25 given to the image recording encoder 51 to the electromagnetic conversion circuit 33 through the audio recording encoder 53. The data is supplied to the audio recording track of the video tape 36 via the magnetic head 34, and the management data recorded on the audio track of the video tape 36 is transferred to the electromagnetic conversion circuit 33 via the magnetic head 34 in the playback mode. By reading it out from the audio recording decoder 54, it is taken into the control management data processing CPU as read processing data 32B.

(G2) Functional Block Control of Video Tape Recorder The data processing CPU 8 controls the video tape recorder as a whole according to the functional blocks shown in FIG.

That is, when the CPU 8 receives a command input from the keyboard 12, it functions as an interrelated processing means in block BKI, and then functions as a system scheduling means and a database holding means in block BK2. At this time, the system schedule means and database holding means communicate with the timer reservation database holding means of block BK3 while managing the time series of the entire system, and perform the functions as an artificial intelligence module indicated by block BK4 and block BK5. and the function as an application processing means shown in FIG.

In the artificial intelligence module BK4, the CPU 8 determines the content of the command input in natural language according to the input of command items expressed in natural language by the natural language system BK4A.

Then, the habit learning inference system BK4B learns and infers the user's habits based on the manner of command content in the natural language, and the habit database creation system B
Create a habit database using K4C.

In the application processing means BK5, the CPU 8 uses the module processing means BK5A to process the management data from the module B.
K5B, user preference module BK5C, system setting module BK5D and timer reservation module BK5
Executes the function of E.

At the same time, the CPU 8 in the application processing means BK5 executes message display processing in the message system BK5F and display processing on the monitor 4 in the monitor block BK5G.

Such artificial intelligence module BK4 and general processing means BK
5, the CPU 8 executes timer reservation packet processing, flag processing, etc. in the common data area processing block BK6.

The processing in the applied processing means BK5 is performed by the input/output driving means B.
It is connected to the video tape recorder body 3, monitor 4, remote control transceiver 7, and remote control controller 6 as external devices via K7.

(G3) Recording Format of Video Tape As shown in FIG. 3, the video tape 36 has video recording tracks TA and 36 having different azimuth angles formed along the head scanning direction that diagonally crosses the tape running direction a. TBs are formed adjacent to each other in the tape running direction a, and control signal (CTL) recording tracks are formed along the longitudinal direction of the video tape 36 at the outer edges of the entry side ends of the video recording tracks TA and TB. TCT is formed to record the control signal CT, and audio recording tracks CHI and CH2 for two channels are formed at the edge of the video tape 36 on the exit side.

A management database video track recording area F AVV is provided at the beginning of the recording start of the video tape 36 over a predetermined number of video recording tracks TA and TB, and the management database video track recording area F
Following AVV, a video signal recording area FvD is formed in which video signals for one field are recorded in each of the video recording tracks TA and TB.

Management data DAv having the structure shown in FIG. 4 is recorded in each of the recording tracks TA and TB belonging to the management database video track recording area FAVV.

Further, a management database audio track recording area FAvA is formed at a predetermined track position, for example, in the tape top portion of the audio recording tracks CHI and CH2, and the management database audio track recording area FAvA similarly manages the configuration shown in FIG. Data I)Av is recorded.

The management data DAv is such that a volume information block D- and a program information block DPI are sequentially recorded in that order from the head of the recording track.

The volume information block D VM is management information regarding the video cassette 35 installed in the video tape recorder body 3, and includes items A1 to A1, for example, as shown in FIG.
135 consisting of 5 [by 13 minutes volume information DVNX
recorded as.

The information in item AI represents "format version",
By recording the version number of the management data D□ using 1 [byte] of data, the video cassette 35
By identifying the format version when the I) AV is installed, the system is configured to be able to process even the old version of the management data I) av.

Item A2 represents the "number of repeated recordings", and records the number of times of repeated recording when the management data DAv is recorded in the management database audio track recording area FAVA using, for example, 1 [byte] of data. In this way, the number of times the management data DAv was recorded using the audio signal recording method is recorded as reference material.

Item A3 represents the "number of screens used", for example 1 [byte]
management data DAv according to the data of video cassette 3
The number of screens used when recording in 5 (that is, the number of recording tracks occupied by the management database video track recording area Favv) is recorded so that the system can determine the position of the first track of the video signal recording area FVD. ing.

Item A4 represents the "number of used programs," and records the number of programs scheduled or recorded on the video cassette 35 and the presence or absence of recording space using, for example, 1 [byte] of data.

In this embodiment, the 0th to 6th bits allow the number of reserved or recorded programs to be recorded up to 32 programs, and the 7th bit indicates whether there is recording space (represented by a logical 0). ) or there is no recording space (represented by a logic "1"). By doing this, even if the number of used programs is less than the maximum 132 programs depending on the tape length of the video cassette 35 or the length of reserved or recorded programs, if there is no recording space, this can be stored in the 7th program. This can be confirmed by bits.

Item A5 represents "date and time of generation", and records the date and time when the management data I) av was first written into the video cassette 35 using, for example, 5 [bytes] of data.

In this example, the 1st, 2nd, 3rd, 4th, and 5th bytes each contain "minute,""hour,""day,""month," and "year" in two-digit binary coded IO numbers. The age of the video cassette 35 can be determined based on the volume information DVH, which is an item representing the date and time of generation.

Item A6 represents "update date and time", and records the date and time when the management data DAv was changed, for example, using 5 [bytes] of data.

In this embodiment, the update date and time data are the first, second, third,
4th and 5th bytes sequentially indicate "minute", "hour", "day"
, ``month'', 1 year'' are recorded in binary coded decimal notation, and thus T1f! indicates when the currently used management data I) av was changed. It has been made so that it can be recognized.

Item A7 represents the "system volume number." For example, if the video cassette 35 is a so-called series product, 8 (bytes) of data is used to record the series number, and this records the series number that is currently installed. In addition, the system volume number can be displayed on the monitor by adding a system volume number to the recording reservation information held by the video tape recorder body 3. This allows the user to be informed of the video tape 36 to be reserved for recording.

Item A8 represents "screen display color", for example 2 [byte]
For example, when displaying a list, etc., the user can specify the display color based on the data of It is designed so that it can be immediately determined which cassette is installed.

Item A9 represents "various flags", for example 1 [byte]
This data allows multiple types of flag data to be recorded.

In this embodiment, the user can record a "record prohibition" flag in the 0th bit, thereby allowing the recorded contents of the video cassette 35 to be saved.

Furthermore, a "formatted" flag can be entered by the system in the first bit, thereby making it possible to confirm whether or not the entire recording area of the video tape 36 has been completely formatted.

Furthermore, the second and third bits allow the system to input an "address mode" flag indicating the type of program end address, so that even if the program end address is recorded in a different mode by the video cassette 35, This can be reliably detected.

Item AIO represents the "type of video cassette" and is designed to record the tape length and tape 119 using, for example, 2 [byte] data.

In this embodiment, the first byte can be automatically set by the system, whereas the second byte can be set by the user as necessary. Thus, when the video cassette 35 is loaded, by checking the type and length of the tape, it is possible to check the hub diameter to be used.

The item All represents "password" and allows the user to register a password expressed in a 4-digit binary coded decimal number using 2 [byte] data, for example.

In this way, the video power set F where the user registered the password
-35 is attached to the video tape recorder body 3,
If the user cannot correctly enter the password registered in the video cassette 35, the video cassette 35
This prohibits the recording and playback of video tape 36.
The contents of the file are not visible.

Item AI2 represents a "user volume number", and is configured such that the user can record a video cassette organizing number, that is, a volume number, on the video cassette 35 according to his/her preference using, for example, 2 [bytes] of data. In the case of , the number is 0 to 6400 in binary coded decimal notation.
In addition to being able to assign a volume number within the range of 0, the user volume number can be displayed on the monitor by adding the user volume number to the recording reservation information that the video tape recorder main body 3 has. This has been done so that you can be informed.

Item A13 represents the "playback order", and for example, the playback order of up to 32 programs can be recorded as needed using 32 [bytes] of data, so that in the so-called program playback mode, the first byte from the third
Programs recorded in that order up to the second byte can be sequentially specified and played back.

Item A14 represents "recording order", and for example, 32 [bytes] of data can be used to store up to 32 recording positions in 32 recording order positions.
It is possible to record program numbers.

In this way, in so-called program playback, programs with program numbers recorded in that order from the first byte to the 32nd byte can be played back in sequence.

Item A15 represents "volume label", for example 40
The [byte] data allows the user to label the video cassette 35 with a title, etc. as necessary, and also adds a volume label to the recording reservation information held by the video tape recorder body 3. This allows the video tape 36 to be displayed on the monitor, thereby informing the user of the video tape 36 to be reserved for recording.

In this embodiment, a maximum of 40 characters can be recorded when the ASCII code is used, and a maximum of 20 characters can be recorded when the 5-JIS code is used.

On the other hand, as shown in FIG. 4, the program information block DPI+ corresponds to the program information recorded on the video tape 36 of the video cassette 35 or reserved for recording. It is composed of □8.

Item B1 represents a "start address", and for example, the start address value of each program is determined based on the start address of the video tape 36 using 3 [byte] data, and the program is stored in the video signal recording area F'vo of the video cassette 35. Written by the system after being recorded.

In this example, the address value modes are time mode ("seconds", "minutes", and "hours" are expressed in binary coded decimal notation), and program number mode (VASS (VH3), video
o address signal 5earch
(represents the program number based on the VH3 standard) and control signal mode (CTL (β) represents the program number based on the standard).
(expressed by the number of pulses) can be selectively applied.

Item B2 represents "end address", and records the program end address value from the beginning position of the videotape 36 using, for example, 3 [byte] data.

In this embodiment, the program end address value can select the time mode, program number mode, and control signal mode in the same way as the program start address value.

Item B3 represents "various flags" and records information representing the handling status of the program information using, for example, 1 [byte] of data.

In this example, "recorded information" (indicating whether the program is being recorded or not) is written in the 0th bit, and "recording end status information" (when recording is finished) is written in the 1st and 2nd bits. ) is written in the 3rd bit, a ``recording permission flag'' (indicating whether recording should be prohibited or not) is written in the 4th bit, and ``saw flag information'' is written in the 4th bit.
(indicating whether the user has watched the recorded program at least once).

Item B4 represents the "system program number", for example 1 [
Byte] data records a series of serial numbers assigned by the system to the program.

In this example, "0" and "1" are entered sequentially from the beginning of the tape.
, "2", etc. are written as the system number.

Item B5 represents the "program number", and for example, a series program (for example, a drama series) is determined by l [byte] data.
The user can input the number of times, etc.

Item B6 represents a "category code" and records the category of the program content (eg, sports, news, drama, etc.) using, for example, 1 [byte] of data.

Item B7 represents "input source", for example 1 [byte]
The input source indicating where the program was obtained is recorded by the data.

In this embodiment, the channel number selected by the tuner 21 (FIG. 1) and the external line number of the external line video signal S12 are written as information representing the source content.

Item B8 represents "recording/operation mode", and the recording mode for the video cassette 35 and the operation mode at the time of recording are written in, for example, 1 [byte] of data.

In this embodiment, the recording mode is video cassette 3.
5 is recorded by a video tape recorder of "β method", rVH3 method", or "8 mm video method", the recording mode is written, and in the case of β method, "βIs mode", "β■ Write the types of "mode" and "βmode", and also write the types of "rsp method", "LPβ method, rEP method" in the case of VH3 method,
Also, in the case of 8ξ mm video type, the type of "SP mode" or "rLP mode" is written. Further, as the operation mode during recording, for example, types such as "normal recording mode" and "mode j in which only the reference signal is written in advance are written.

Item B9 represents "recording start time" and records the start time of a reserved or recorded program using, for example, 5 [bytes] of data.

In this example, the user writes "minute", "hour", "day j", "month", and "year" in the first, second, third, fourth, and fifth bytes in binary coded decimal notation. It is done like this.

Item BIO represents "recording end time", and records the end time of a reserved or recorded program using, for example, 2-byte data.

In this embodiment, "minute" and "hour" data are written in the first and second bytes in binary coded decimal notation.

The item Bit represents "scheduled recording control information", for example, 10
The video tape recorder main body 3 (FIG. 1) performs a scheduled recording operation using data in (byte) when scheduled recording is executed, and also records information for controlling peripheral equipment to be operated in response thereto.

Item B12 represents "title", and the user writes character information representing the title of the program using, for example, 40 [bytes] of data.

(G4) Video tape recorder setting processing
The video signal processing section 2 and the video tape recorder main body 3 are processed by the processing program RTO shown in FIGS. 7, 8, and 9.
By processing according to RTI and RT31, it is controlled to the operating state specified by the user.

In the case of this embodiment, the remote controller 6 has a display screen 6A having a touch panel on a liquid crystal panel on the operation panel on the surface of the case, as shown in FIG.
When designated items are displayed as a list on the display screen 6A, a designated signal regarding the displayed item can be input by directly pressing and clicking each displayed item. In addition, after specifying a predetermined display item by moving the cursor displayed on the display screen 6A using the four-direction cursor keys 6B, a specification signal regarding the display item is input by operating the execution key 6C. It is made to be obtained.

Furthermore, the remote controller 6 has a normal operation command key 6D, a menu display command key 6E, a management data mode command key 6F, and reservation 1 and reservation 2 operation mode designation keys 6G and 6H. The operation mode of the video tape recorder 1 can be specified for each user.

Step SP of the input information processing program RTO in FIG.
In I, the CPU 8 waits for the power to be turned on, and when a positive result is obtained, it is determined in step SP2 whether or not the power is turned on for the first time, and if it is the first time, steps SP3, SF3 and By sequentially executing the processing of SF3, the message "Setting the time" is displayed on the display screen 4A of the monitor 4 and the display screen 6A of the remote controller 6, and then the current time is set using the system setting operation mode. A message "Time has been set" is displayed on display screens 4A and 6A.

In this way, the video tape recorder 1 enters the standby state for commands with the current time set.

This command standby state continues to be maintained even when a negative result is obtained in step sP2, and thus the "management database", "system settings J", "favorite settings J" and "timer reservation" items are maintained in the command standby state. You can now perform selective operations.

In fact, in this command standby state, when the menu display mode designation key 6E is operated on the remote control controller 6 (or keyhole F] 2), the CPU 8 displays "management database" and "system settings" on the display screens 6A and 4A. ”, “Favorite Settings” and “Timer Reservation” are displayed to allow the user to specify one of the operating modes by clicking.

The "management database" mode is the management database video track recording area F of the video tape 36 (FIG. 3).
An operation mode in which management data DAv (FIG. 4) is recorded in the AVV or management database audio track recording area FAvA, or the recorded management data DAV is used to drive and control the video tape recorder main body 3,
When the "Management Database" item among the menu display items is clicked in step SP6, the CPU 8 sets the video cassette 35 containing the tape on which the management data I) Av (this is called a management data tape) is recorded. If it is set, after executing various processes of the management database in subroutine RT1, step SP8
In step SP9, it is determined whether the contents of the management database have been changed or not, and if the contents have been changed, the management database video track recording area FAVV or the management database audio track recording area FAVA is determined in step SP9.
Executes processing such as rewriting the recorded data with the changed management data.

In this way, the processing for the management database is completed, and in step 5pio it is determined whether the power has been turned off or not. When a negative result is obtained, the state returns to the above-mentioned command standby state, and when a positive result is obtained, step At 5PII, the input information processing program ends.

Upon entering the various processing routines RT1 for the management database described above, the CPU 8 executes step 5P2, as shown in FIG.
1, after displaying the management data list on the display screen 6A of the remote control HH6 and the display screen 4A of the monitor 4, the system enters a command standby state.

At this time, "Label", "Reservation Cancellation", "
"Auto play", "Manual reservation", "Program information confirmation"
and rThe first page of management data reservation is displayed, and this makes it possible to specify that one item.

Here, the "Label" item represents an operation mode that can be set by selecting one of the volume information or program information included in the volume information block D□ or program information block D, (Fig. 4) of the management data DAv. When the "Label" item is clicked in step 5p22, the "Password", "Recording Mode", "Tape Type", "Category" and "Title J" items are displayed on the display screen. You can now select items.

Here, when the user clicks on the "Password" item,
The CPU 8 receives the volume information D in step 5P23.
Allows the user to rewrite the password data recorded in the item All of vs* (FIG. 5).

Similarly, in step 5P24, the CPU 8 can designate the recording/operation mode recorded in item B8 of the program information DPRX (FIG. 6) and write the recording mode data therein.

Further, in step 5P25, the CPU 8 selects [!] of the video cassette recorded in the item AIO of the volume information DvMX (FIG. 5). Among the data representing the tape type, the tape type data can be rewritten.

In addition, the CPU 8 retrieves the program information in step 5P26.
□ The category code data recorded in item B6 (Figure 6) can be rewritten.

Further, in step 5P27, the CPU 8 reads the program information D.
The title data recorded in item B12 of P□ (FIG. 6) can be rewritten.

In this way, cpus rewrites the data of "Password" item to "Title" item in steps SP23 to 5P27, and then in step 5P28, "When end j item is specified, end the processing of the management database and execute step 5P29. Then, the process returns to the management database processing loop shown in FIG. 7 and enters the process of step SP8.

On the other hand, in the command standby state where the management data list is displayed in step SP21 of FIG. Cancel all program reservations.

Also, when the user clicks on the "Autoplay" item, C.
In step SP31, the PU8 sets the volume information Dv.
The reproduction order data of item A13 of MX (FIG. 5) is reproduced in a fixed order and rewritten as necessary.

When the user clicks on the "manual reservation" item, the CPU 8 sequentially accepts manual settings for a predetermined number of programs and inputs them as management data.

When the processing of steps 5P30, SF31 and 5P32 is completed, the CPU 8 executes the steps S and P28.
9 to return to the management database processing loop (FIG. 7).

Further, when the CPU 8 is in the standby state for a command to display the management data list in step SP21 of FIG.
U8 enters the process of step 5P33 and returns to step 5P3.
Switch the display on the display screen in step 4, and proceed to step 5P.
35, 5P36, 5P37, or 5P3B, the volume information DVMX (Figure 5) and program information DPRX (Figure 6) r recording permission'' item, ``saw flag j item, category J item, title The display mode becomes such that the recorded contents of item J can be confirmed or rewritten.

In this example, the "recording permission" item, "saw flag J"
A predetermined pictorial display, that is, a character, is used as the data for the item, "category" item, and "title" item, which makes it possible to check and change information recorded for multiple reserved programs using a relatively small display area. It has been made possible to do so.

When the processing of steps 5P35 to 5P38 is thus completed, cpus returns to the management database processing loop (FIG. 7) via steps 5P2B and 5P29.

Furthermore, when the user clicks on the "Management Data Reservation" item in the command standby state where the management data list is displayed, CPLJ8 enters the management data subroutine RT3, which is part of the processing procedure shown in FIG. A management data reservation processing procedure RT31 for switching the reservation mode as shown in the number is executed.

At this time, CPtJ8 allows the user to select timer reservation mode in step SP41.

In this embodiment, as shown in FIG. 11, as a list of specified items that can be presented to the user for specifying and selecting specified items of management data, words consisting of word input items that express specified items using natural language. A designated item list TBL and a graphic designated item list consisting of graphic manual items that represent designated items using graphic elements such as Roman letters, numbers, and symbols as usual are prepared, and the CPU 8, in step SP41, The user is allowed to select and specify either verbal input or graphic input as the reservation screen to be used.

If the word input is selected as a result, the CPU 8 moves to step 5P42, displays a word designation item list device on the display screen, and loads data corresponding to the word input item specified by the user into the register 44.

Conversely, if graphic input is selected, the CP
U8 moves to step 5P43, displays the graphic designation item list on the display screen, and stores the data corresponding to the graphic input item specified by the user in the register 44.
Incorporate into.

In this way, when the user's designated manual operation is completed, the CPU 8
ends the management data reservation input process and returns to the management database processing loop shown in FIG.

At this time, the CPU 8 subsequently displays the "registration" item, "change 1st selection" and "query 1st selection" on the display screen, and then proceeds to step SP.
51. In 5P52 and 5P53, when the user clicks on the "registration" item, "change 1st selection", or "inquiry" item, the process to execute this starts.

Here, as cpus processes the clicked item, in steps 5P54, 5P55, and 5P56, it is possible to display a calendar reservation table, a weekly reservation table, and a daily child schedule according to the user's selection. The start time and/or end time of a reserved program is written on the calendar reservation table, weekly reservation table, or daily child schedule.

After completing this process, the CPU 8 executes the above-mentioned step 5P2.
At step B, the processing program for the management database is ended, and the process returns to the management database processing loop (FIG. 7) from step 5P29.

The above is performed in step S in the initial command standby state shown in FIG.
By clicking on the "Management Database" item on P6, you can record, change, and record the management data on videotape.
This is a confirmation process, but if the user clicks on other specified items, i.e., "System settings 1st selection", "Favorite settings 1st selection", or "Timer reservation" item in the initial command standby state, , the CPU 8 executes processing for setting operating conditions for each part of the video tape recorder 1.

That is, in step SP61 of FIG.
When you click "System Settings", the display screen displays the "Current time" item, "Good night", "471st selection", "Recording mode" item, "Noise cancellation 1st peak", rBS online j item, "Auto set" item, The "Tuner Preset" item and "Line Power" item are displayed, and these items can be set in steps SP62.5P63.5P64.5P respectively.
By clicking on 65.5P66.5P67.5P68 or 5P69, the operating conditions of each part of the system can be set. When the setting process is finished, the CPU 8 finishes the process of the system setting process loop and executes the steps described above. Move to 5PIO.

On the other hand, when the CPU clicks on the "Favorite Settings" item in step SP71, the display screen displays the "Screen Display" item, "Management Database" item, "User Set" item, "Character" item, and "Timer Reservation" item. In the first selection, the "user level" item, "message" item, and "audio" item are displayed on the display screen, and these items are processed in steps 5P72.5P73 and SP74.5P75, respectively.
, SP76. When clicked on 5P77, SP7 B or 5P79, the CPU 8 executes the process of each item, and when the process is finished, the above-mentioned step 5PI is executed.
Move to O.

Further, in the initial command standby state, when the user clicks on the "timer reservation" item in the subsequent step SP81, the CPU 8 displays the "registration" item and the "change" item on the display screen.
Display the item and the first selection of the inquiry, and the user selects step SP.
82. When you click on each item on 5P83 or 5P84, the "Calendar reservation table" item, "1 week reservation table" item, and "1 day child schedule J item" are displayed on the display screen.Next, Part 1 If the user specifies one, CP
U8 makes a calendar reservation table, a weekly reservation table, or 1 in steps 5P85, 5P86 or 5P87 respectively
By displaying the Japanese schedule, the user can make a reservation for a program using the reservation table.

When the CPU 8 has thus completed the processing of the timer reservation processing loop, it moves to the above-mentioned step 5 PIO.

In this way, by executing the input information processing program RTO shown in FIG. 7, the CPU-8 can reliably control the video tape recorder main body 3 based on the manual data input by the user.

(G5) Recording permission/prohibition processing operation Program information corresponding to each program in the management data DAv recorded in the management database audio track recording area FAVA or the management database video track recording area FAVV of the video tape 36. The "recording permission flag" corresponding to the predetermined program among the "recording permission flags" among the "various flags J" provided in item B3 of l is set to "1" by the user and is in a recording permission state. Then, the CPU 8 is configured to permit the recording operation only for programs whose "recording permission flag" is controlled to be in the recording permission state.

That is, the recording permission/prohibition processing routine R shown in FIG.
T61 indicates the recording permission/prohibition processing operation in the input information processing and management database setting processing shown in FIGS. 7 and 8. When the user loads the video cassette 35 into the video tape recorder body 3 in step 5P130, ( In step 5P7) of FIG. 7, the CPU 8 extracts program information DPIIX of each recorded program recorded on the video tape 36 from among the management data DAV recorded on the video tape 36 of the video cassette 35 in step 5P131. Sequential reading followed by step 5
By executing the processing operation of step 5P35 shown in FIG. 8 in P132, it is determined that the "recording permission flag" provided in the third bit of the various flags for each recorded program is in the on state (that is, "1" is (indicates a “recording permission state”).

If a negative result is obtained here, this means that the recorded program corresponding to the "recording permission flag" must not be deleted, and the CPU jumps to step 5P133 and displays the display screen 4A in step 5PI34. Of the graphic display HYO as shown in FIG. 13 displayed on 6A, a pictorial display RECN indicating that recording of the currently read program is prohibited is displayed in the display column of the recorded program.

If a positive result is obtained, this means that it is OK to record a new program in the recording area of the recorded program currently being processed (in other words, the recorded program currently being processed can be deleted). The CPU 8 moves to the following step 5P133 and changes the "recording permission" internal flag provided in the video tape recorder main body 3 from the initial state of "recording prohibited" to the "recording permitted" state. Then, in the following step 5P134, a pictorial display REc, K indicating a recording permission state is displayed in the display column of the current program.

In this way, the CPU 8 displays on the display screens 4A and GA whether or not the programs recorded on the video tape 36 of the video cassette 35 loaded in the video tape 36 can be erased, and also displays the recorded programs whose erasure is prohibited. In the recording area, the "recording permission" internal flag corresponding to the recorded program is in a recording prohibited state, so that even if the user attempts to record a new program in the recording area, this will not be executed.

That is, as shown in FIG. 14, the program information block D□
For example, in the "recording permission flag" corresponding to each program recorded in ~D4, if the "recording permission flag" corresponding to the first and second program and D2 is in a prohibited state. controls programs D1 and D2 to be in a recording prohibited state (that is, erasing prohibited state), and the area of the program and D2 recorded in the "start address" of the program information DPIIK corresponding to the program and D2. Based on the start position of the program, no new program is recorded in this area.

Therefore, when the user wants to record a new program on the current videotape 36, the number and
l Ds and D4 area to the relevant pot &flp.

After detection based on the "start address" of D4 and D4, a new program can be recorded in the recording areas D3 and D4.

Thus, CPLI8 moves to step 5P135 and performs the seventh
By executing the processing operation of step 5 PIO shown in the figure, the user waits for an instruction to take out the video power set 35 or to instruct the power off, and when the operation is executed, the process moves to the subsequent step 5 P136 and is stored in the register 44. After writing the management data to the management data video track recording area FIII/V or the management data audio trunk recording area FAVA of the video tape 36, in step 5P137, the ejecting operation of the video cassette 35 or the power supply is performed according to the instructions of the user. Execute the off operation and confirm the recording permission/in step 5P13B.
Exit prohibition processing mode.

Thus, the user may erase on display screens 4A and 6A! It is possible to confirm the IljJ area and the program area that should not be deleted, and to record a new program only in the program area that can be deleted.

According to the above configuration, in the management data DAv (FIG. 4) recorded in the management database video track recording area FAVV or tfl database audio track recording area FAvA of the video tape 36, the information recorded on the video tape 36 is recorded. By recording information about recording permission/prohibition (that is, erasing permission/prohibition) as program information for each program,
When the videotape 36 is loaded into the videotape recorder main body 3, it can be read out to visually display the recording permission/prohibition area, and it is also possible to prohibit new recording in the area where recording is prohibited.

In this way, it is possible to specify a recording (erasing) permission or prohibition mode for each of a plurality of programs recorded on the videotape 36.

(G6) Other Embodiments (1) In the above-described embodiments, a case was described in which the pictorial displays RECoK and RE CNo shown in FIG. 13 were used as pictorial displays indicating the state of the recording permission flag. The display is not limited to this, and various other pictorial displays, character displays, etc. may also be used.

(2) In the above-described embodiment, a case has been described in which the state of the recording permission flag is visually displayed, but the present invention is not limited to this, and this may be indicated by audio or the like.

(3) In the above-described embodiment, the case where the user manually controls the recording permission flag to the recording permission state or the recording prohibition state has been described, but the present invention is not limited to this.
The recording permission flag may be controlled by other methods, such as automatically controlling the recording permission flag to the recording permission state for a program that has been played once.

(4) In the above-mentioned embodiment, the volume information block DvM and the program information block D□ were written in that order from the head position of the recording track as the configuration of the management data DAv. Various changes may be made, such as replacing the ingredients, or dividing them into smaller pieces and mixing them in some cases.

(5) In the above embodiments, the case where the present invention is applied to a video tape recorder has been described, but instead of this, other cases such as a case where an audio signal is recorded, such as a so-called cassette tape recorder with a radio, etc. The present invention can be applied to various recording and reproducing devices in the same manner as described above.

Effects of the Invention H As described above, according to the present invention, by specifying erasure permission or prohibition as program information for each program recorded on a recording medium, some programs on the recording medium can be erased. It is possible to erase or prohibit erasure only.

In this way, the management of recorded programs can be made easier.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the overall configuration of a video tape recorder according to the present invention, FIG. 2 is a block diagram showing its functional blocks, FIG. 3 is a route map showing the recording format on the video tape, and FIGS. Figure 6 is a route map and chart showing the configuration of the management database, Figure 7 is a flowchart showing the manual information processing procedure of the video tape recorder, Figures 8 and 9 are flowcharts showing the processing procedure of the management data base, and Figure 10. Figure 11 is a front view showing the configuration of the remote controller, Figure 11 is a diagram showing the configuration of the word specification item list, Figure 12 is a flowchart showing the recording permission/prohibition processing operation, and Figure 13 is the display screen. FIG. 14 is a route map showing recording prohibited areas on a videotape. l...Video tape recorder, 2...
Video signal processing unit, 3...Video tape recorder body, 4...Monitor, 5...Control management data processing unit, 6...Remote control controller , 8... Central processing unit for control management data processing (CPU), 12... Keyboard, 3
2... Recording circuit, 33... Magnetic conversion circuit, 35... Video cassette, 36...
・Video tape, 37...Reproduction circuit, RE
C. RE CHo・・・Picture display. Ifko Nitabase 1 and 4 Gashiya Shiko (Mu 3 times management data/) Oke Soko Festival - 4 Volume Information Structure Diagram Chazu Nomoto Control - 2 Shiyu 1] #Answer 0 Gyoroku Ema b Kichi'+'U/ V Liu Hijiri haikuko, Kuri no L, -
Hand Figure 12 70'/Fuhitheo Tape O Silver De Positive Inclination-A Figure 14

Claims (1)

[Claims] A recording/playback system in which management data is recorded in a management database recording area provided in a recording track on a recording medium, and the program recorded in the recording track is managed using the management data. In the device, erasure permission information or erasure prohibition information is recorded in the management database recording area as program information corresponding to each program recorded on the recording track on the recording medium, and the erasure permission information or erasure prohibition information is recorded in the management database recording area. A recording/reproducing device characterized in that the corresponding program is erased or prohibited from being erased based on the above.