JPH03286445A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To record a new program only in a desired recording area by providing a control head to read out position information at the upstream side of an erasing head in the traveling direction of a recording medium. CONSTITUTION:The control head 34A to read out the position information is provided at the upstream side of the erasing head 34B of a recording/ reproducing device 1 in the traveling direction (a) of the recording medium 36. Accordingly, a defect that the erasing head of the upstream side erases the position information of the a program area not to be erased before the head position of the recording area of this program is detected by the detecting head of a downstream side can be canceled, and recording operation can be executed while the area being recorded presently is monitored. Thus, the new program can be recorded only in the program area which can be erased among the programs recorded beforehand.

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! Means for solving the problem (Figs. 1, 3, and 4) 1. Effect (Figs. 1, 3, and 4) Example G (G1) Overall configuration of a video tape recorder (Fig. 4) Figure 1) (
G2) Functional blocks of videotape recorder (Figure 2) (63) Recording format of videotape (Figures 3 to 6) (G4) Setting processing of videotape recorder (Figures 7 to 11) (G5 ) Record of program start address (Figure 12) (G6)
Rewriting of recorded programs (FIGS. 12 and 13) (G7) Other embodiments H Effects of the invention A Industrial field of application The present invention relates to a recording and reproducing device, and is suitable for application to, for example, a consumer video tape recorder. It is something.

B. Summary of the Invention The present invention provides a recording/reproducing apparatus that newly records a program only in a predetermined area by providing a control head for reading program position information upstream of the erasing head in the running direction of the recording medium. can do.

C. Prior Art Conventional consumer video tape recorders record multiple programs on a video tape that extends in the horizontal direction.
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.

D Problems to be Solved by the Invention By the way, in such a conventional video tape recorder, position information (a signal for cueing) of the video tape is recorded in the longitudinal direction of the video tape, and this position information is stored in a predetermined manner. By reading with a detection head (hereinafter referred to as a control head), for example, when multiple programs are recorded on a videotape, it is possible to locate the beginning of a predetermined program from among the multiple programs (search operation). It is designed so that it can be done.

Therefore, when recording a new program in a predetermined program recording area among multiple recorded programs, after locating the program using a search operation, start recording the new program in the program area. It is made to be.

In a conventional video tape recorder for recording a program, an erasing head is provided upstream in the running direction of the video tape with respect to a magnetic head for recording and reproducing video signals, and the control head is provided downstream. After the downstream control head locates the beginning of the program, the upstream erase head erases the recorded program as a recording operation for a new program.
Subsequently, a new program is recorded using a magnetic head for recording and reproducing video signals.

However, since the erasing head is provided upstream of the control head, when a program recording area that cannot be erased follows a program recording area that can be erased, the detection head on the downstream side As a result, the upstream erasing head erases the position information of this program area before detecting the beginning position of the program recording area that should not be erased, and the recording operation is subsequently executed. There is a problem in that there is a risk that programs that should not be used may also be deleted.

The present invention has been made in consideration of the above points, and attempts to propose a recording/playback device that can record a new program only in a desired program recording area among a plurality of programs recorded on a recording medium. It is something to do.

8 Means for Solving the Problems In order to solve the problems, in the present invention, one or more programs P1, P2, P3 are recorded on a recording medium 36 running in a predetermined direction a along the running direction a.・・・・・・
・Sequentially records the recorded programs P1, P
2, P3... is recorded on the control signal recording track TCT formed on the recording medium 36 along the running direction a of the recording medium 36, and the position information is recorded in a predetermined position in the recording mode. After the program and position information recorded on the recording medium 36 traveling in direction a are erased to a predetermined value by the rad 34B, new programs and position information are recorded on the recording medium 36 by a predetermined recording head 34C134D. The recording/reproducing apparatus 1 is provided with a control head 34A for reading position information upstream of the erasing head 34B with respect to the traveling direction a of the recording medium 36.

1 Effect By providing the control head 34A for reading program position information upstream of the erasing head 34B with respect to the running direction a of the recording medium 36, the recording operation can be performed while monitoring the currently recorded area in the recording mode. This allows a new program to be recorded only in a program area that can be deleted among previously recorded programs.

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 S1 input via 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 to this, a control management data processing section 5 is provided, and inputs 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. As a result, control information S5 is sent to the bus 9, thereby controlling the video signal processing section 2 and the circuit elements constituting the video tape recorder main body 3, and control information S6 is sent to the video tape recorder main body 3 via the bus 10. A control signal S7 for the mechanism elements constituting the video tape recorder main body 3 is generated by communicating with a central processing unit (CPU) 11 for controlling the mechanism.

The video signal processing unit 2 selects as input the received video signal S11 received by the tuner 21, the external line video signal S12 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 the superimpose fader circuit 24 through the circuit 23, and thus the 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 this way, the video signal recorded on the video tape 36 is picked up by the reproduction circuit 37 via the magnetic head 34 and the magnetic conversion circuit 33 in the reproduction mode, and is picked up by the reproduction circuit 37 via the reproduction switching circuit 38.
It is sent to the video signal processing unit 2 as a reproduced video signal s2 through the video signal s2.

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

CPU for control management data processing of the control management data processing unit 5
s is the basic data stored in the ROM basic data memory 43 based on the input/output information signal S4 input from the remote controller 6 or the input information signal S8 manually input from the VTR keyboard 12, and the RAM. Control information S5 and S6 are sent to buses 9 and 10 by processing the processing data stored in configuration register 44 based on a clock signal from 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 taken into the register 44.

If it is necessary to notify the user of the processing results obtained by processing data in the control management data processing CPU 8 in this way, the control management data processing CPU 8
U8 supplies an image display information signal S14 to the video display processor 41 as part of the control information S5, and the image display information signal S14 causes the video RAM 4 to
By supplying the image display signal S15 read from 2 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 this, 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. videotape 3
When the management data 1 written in the video recording track is read through the magnetic conversion circuit 33, the playback circuit 37, and the playback switching circuit 38, it is recorded on the video recording track No. The data can be taken in via the bus 9 as read management data S26 via the decoder 52.

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 through the audio recording encoder/decoder 53. By supplying it to the magnetic conversion circuit 33, the management data DAv is recorded on the audio recording track CHL CH2 of the video tape 36 via the magnetic head 34, and the management data D recorded on the audio tracks CHI and CH2 of the video tape 36 is recorded. By reading out the AV from the electromagnetic conversion circuit 33 via the magnetic head 34 and reading it out to the audio recording encoder/decoder 53, it is taken into the control management data processing CPU 8 as successive management data 52B.

Furthermore, in this embodiment, the control management data processing CPU
8, write management data S29 similar to the write management data S25 given to the image recording encoder 51 is sent to the magnetic conversion circuit 33 through the CTL recording encoder/decoder 54.
By supplying the control data DAv to the control signal recording track TCT of the video tape 36 via the first control head 34D (FIG. 13) of the magnetic head 34, the control data DAv is recorded on the control signal recording track TCT of the video tape 36. The management data Dav recorded on the track TCT is sent to the first control head 3 of the magnetic head 34.
The data is read out from the electromagnetic conversion circuit 33 via the 4D (FIG. 13) and read out to the CTL recording encoder/decoder 54, thereby being taken into the control management data processing CPU 8 as read management data S30.

Furthermore, in this embodiment, the control management data processing C
The PU 8 transfers the management data DAv recorded in the control signal recording track TCT of the video tape 36 to the second control head 34A of the magnetic head 34 (FIG. 13).
The continuous management data 3 is read out from the electromagnetic conversion circuit 33 via the CTL reproduction decoder 55.
4B, and is taken into the control management data processing CPU 8.

(G2) Functional Block Control of Video Tape Recorder The data processing CPU 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 from the keyboard 12, it functions as an interactive 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 the instruction contents in the natural language, and the habit database creation system BK4C creates a habit data base.

In the application processing means BK5, the CPU 8 uses the management database module B by the module processing means BK5A.
K5B, user preference module BK5C, system setting module BK5D and timer reservation module BK5
Executes the function of H.

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 application 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 general processing means BK5 is carried out 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 FAVV 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.
Following the video recording area FvD, 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.

Furthermore, 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 is similarly shown in FIG. Configuration management data DAV is recorded.

Furthermore, a management database control signal track recording area FAV is located at a predetermined track position in the top portion of the tape, for example, on the control signal recording track TCT.
Similarly, management data DAv having the structure shown in FIG. 4 is recorded in this management database control signal track recording area FAVC.

The management data DAV is such that a volume information block [)vx and a program information block DPI are sequentially recorded in that order from the head of the recording track.

The volume information block DVM is management information regarding the video cassette 35 installed in the video tape recorder body 3, and includes items A1 to A15, for example, as shown in FIG.
Denaru 135 [by 19 minutes volume information D VMX
recorded as.

The information in item A1 represents the "format version",
The relevant management data DAV is determined by 1 [byte] of data.
By recording the version number of the video cassette 35 and identifying the current format version when the video cassette 35 is loaded, the old version management data Da
Set up the system so that it can handle this even if it is v.

Item A2 represents the "number of repeated recordings", and records the number of times of repeated recording when the management data I)av 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 l [bytes]
management data DAv according to the data of video cassette 3
Record the number of screens used when recording in 5 (i.e., the number of recording tracks occupied by the management data video track recording area FAVv, and from this the system determines the first track position of the video signal recording area F'vn. It is made to be obtained.

Item A4 represents the "number of used programs" and records the number of programs reserved 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 number of reserved or recorded programs can be recorded up to 32 programs using the 6th bit of the cylinder O, and the 7th bit indicates whether there is a recording space (represented by logical 0). ) or there is no recording space (represented by a logic "1"). By doing this, even if the maximum number of used programs is less than 32 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 used as the seventh program. can be confirmed by a bit of

Item A5 represents "date and time of generation", and records the date and time when the management data DAv 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 of boxes each contain "minute,""hour,""day,""January," and "year" in two-digit binary coded decimal numbers. The video cassette 3 is recorded according to the volume information D□ of the item representing the date and time of generation.
It is possible to judge the age of 5.

Item 6 represents "r update date and time," and records the date and time when the management data DAv was changed using, for example, 5 [bytes] of data.

In this embodiment, the update date and time data are the first, second, third,
4th and 5th byte sequentially "minute", "hour J, 7th"
, ``month'', and ``year'' are recorded in binary coded 1O base, so that it can be confirmed when the currently used management data DAv was changed.

Item A7 represents the "system volume number." For example, if the video cassette 35 is a so-called series product, the series number is recorded using 8 [bytes] of data, and the series number is recorded using 8 [bytes] of data. The system volume number can be displayed on the monitor by adding the system volume number to the recording reservation information held by the video tape recorder body 3. This makes it possible to inform the user 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 display color can be specified based on the data, and when the user attaches the video cassette 35 and displays the list display screen, the user It is designed so that it can be immediately determined which cassette is installed.

Item A9 represents "various flags", for example l [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.

IJ (eye A10 represents the "type of video cassette"; for example, the tape length and tape type can be recorded using 2 [byte] data).

In this embodiment, the first byte is set by the system power (which can be set automatically), and the second byte is set by the user as required. When the tape 35 is attached, the tape diameter to be used can be confirmed by checking the type and length of the tape.

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

Thus, when the user inserts the video cassette 35 in which the password has been registered into the third part of the video tape recorder main body,
If the user cannot correctly input the registered password for the video cassette 354, recording and playback of the video cassette 35 is prohibited, thereby making it impossible to view the contents of the video tape 36.

Item A12 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 [byte] 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 "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
(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 includes the sixth
It is composed of program information DP□ as shown in the figure.

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 recorded in the video signal recording area FsB+ of the video cassette 35. written by the system after

In this example, the address value modes are time mode (one second, minute, and hour are expressed in binary coded decimal numbers), and program number mode (VASS (VH3), video
o address signal 5earch
(represents the program number based on the VHS standard) and control signal mode (CTL (β) 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", for example 1 [byte]
Information representing the handling status of the program information is recorded using the data.

In this example, "recorded information" (indicating whether or not the program is being recorded) is written in the Oth bit, and "recording end status information" (when recording is finished) is written in the first and second 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", for example l [byte]
Series number &U (e.g. drama series) according to the data of
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 "1 input source", and records the input source representing where the program was obtained from, for example, by 1 [byte] of 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", for example l (
Byte] data is used to write the recording mode to the video cassette 35 and the operation mode at the time of recording.

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 8 mm video format, the type of "SP mode" or "rLP mode" is written. Further, as the operation mode at the time of recording, for example, types such as "normal recording mode j", "mode j in which only the reference signal is written in advance, etc." 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 J,""hour,""day,""January," and "year" in binary coded decimal notation to the first, second, third, fourth, and fifth bytes in sequence. 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.

Item Bll represents "scheduled recording control information J", 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 CPtJ8 is performed by the control management data processing unit 5 based on command signals input from the remote controller 6 or the keyboard 12.
, video signal processing section 2 and video tape l/Korg main body 3
The processing program RT shown in FIGS. 7, 8, and 9
The operating state specified by the user is controlled by processing according to O, RTI, and RT31.

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. 1O.
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. In contrast, the operation mode of the video tape recorder l can be specified.

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 is maintained even when a negative result is obtained in step SP2, and in this command standby state, "management database", "system settings", "favorite settings" and r timer reservation You can now selectively control the eyes.

In fact, in this command standby state, when the menu display mode designation key 6E is operated on the remote control controller 6 (or keyboard 12), the CPU 8 displays "management database", "system settings", etc. on the display screens 6A and 4A. By displaying the operation mode designations of "favorite settings" and "timer reservation," the user can designate one of the operation modes by a click operation.

The "management database" mode is the management database video track recording area F of the video tape 36 (FIG. 3).
In an operation mode in which management data DAv (FIG. 4) is recorded in the AVV or management database audio track recording area FAv&, or drive control of the video tape recorder main body 3 is performed using the recorded tube ring data DAV. When the "Management Database" item among the menu display items is clicked in step SP6, the cpus checks in step SP7 whether a video cassette 35 containing a tape on which management data DAv is recorded (this is called a management data tape) is set. If it is set, after executing various processes of the management database in subroutine RT1, step SP8
In step SP9, it is determined whether or not the contents of the management database have been changed, and if the contents have been changed, the management database video track recording area F AVV or the management database audio track recording area F Av is determined in step SP9.
Processing is executed to rewrite the recorded data of a to the changed management data.

In this way, the processing for the management database is completed, and in step 5 PIO 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 human information processing program is terminated.

Upon entering the various processing routines RT1 for the management database described above, the CPU 8 executes step SP2 as shown in FIG.
1, after displaying the management data list on the display screen 6A of the remote controller 6 and the display screen 4A of the monitor 4, the system enters a command standby state.

At this time, "Label J", "Reservation Cancellation", "
"Auto play", "Manual reservation", "Program information confirmation"
and "Management Data Reservation" items are displayed, and this makes it possible to specify that one item.

Here, the "Label" item is the volume information block D VM or program information block DPI of the management data Dav.
Volume information or program information included in (Figure 4)
When the "Rahel" item is clicked in step SP22, "Password", "Recording mode", "Tape type", "Category" and "Title" are displayed on the display screen. By displaying j items, it becomes possible to select that one item.

Here, when the user clicks on the "Password" item,
The CPU 8 receives the volume information D in step 5P23.
The password data recorded in the item All of V and X (FIG. 5) can be rewritten by the user.

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

Further, the CPU 8 is configured to be able to rewrite the tape type data among the data representing the type of video cassette recorded in the item AIO of the volume information Dv□ (FIG. 5) in step 5P25.

Also, the 'CPU 8 inputs the program information D in step 5P26.
The category code data recorded in item B6 of p** (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 PIX (FIG. 6) can be rewritten.

In this way, the CPU 8 rewrites the data of the "Password" item to "Title J" item in steps 5P23 to 5P27, and when the "end" item is specified in step SP28, the CPU 8 ends the processing of the management database and goes to step SP29. 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 existing program reservations.

Also, if the user clicks on the first auto-play song, c
pus is the volume information DV in step SP31.
The reproduction order data of item A13 of M11 (FIG. 5) is reproduced in a fixed order and rewritten as necessary.

Furthermore, when the user clicks on the "manual reservation" item, cpus sequentially accepts manual settings for a predetermined number of programs and manually inputs them as management data.

When the processing of steps 5P30, 5P31 and 5P32 is completed, the CPU 8 executes the steps 5P28 and 5P29 described above.
and returns 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 5P21 of FIG.
8 enters the process of step 5P33 and goes to step 5P34
Switch the display on the display screen and proceed to step 5P3.
5, or 5P36, or 5P37, or 5P38, volume information DvN3+ (Fig. 5) and program information D
The display mode becomes such that the recorded contents of the ``Recording Permission'' item, ``Seen Flag'' item, ``Category J Item'', and ``Title-4'' items of PIX (Figure 6) can be confirmed or rewritten.

In this example, "recording permission" item, "saw flag"
A predetermined pictorial display, that is, a character, is used as the data for the "Category J item" and the "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 SP3B 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, the CPU 8 enters the management data subroutine RT3, which forms part of the processing procedure shown in FIG. Management data reservation processing procedure R for switching reservation modes such as
Execute T31.

At this time, the CPU 8 causes the user to select the 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 input 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 word input or graphic manual 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 the word designation item list TBL on the display screen, and takes into the register 44 the data corresponding to the word input item specified by the user.

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

In this way, when the user's specified input 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" item, and "inquiry" item on the display screen, and then proceeds to step SP.
51. In 5P52 and 5P53, when the user clicks on the "registration" item, "change" item, or "inquiry j item," the process to execute this starts.

Here, the CPU 8 processes the clicked item, and in steps 5P54, 5P55, and 5P56, it can display a calendar reservation table, a weekly reservation table, and a daily child schedule according to the user's selection, respectively, The start time and/or end time of the reserved program is written on the calendar reservation table, weekly reservation table, or daily child schedule.

After this process is completed, the CPU performs step 5P2 described above.
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, such as the "system settings" item, the "favorite settings j item," or the "timer reservation" item while in the 5-nucleus 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, "Sleep timer" item, "Recording mode" item, "Noise cancellation" item, rBS online" item, "Auto upper 913 items, and "Tuner preset" item. ” item and “line input first time” are displayed, and these items are respectively displayed in step 5P62.5P63.5P64.5P6
By clicking on 5.5P66.5P67.5P6B or 5P69, you can set the operating conditions for each part of the system, and when the setting process is finished, click C.
The PU 8 ends the processing of the system setting processing loop and moves to the above-mentioned step 5 PIO.

In response, when the CPU 8 clicks on the ``favorite setting J item'' in step SP71, ``Screen display J item,'' ``Management database'' item, ``User set'' item, ``Character'' item, and ``Timer reservation item'' are displayed on the display screen. ” item, r user level” item, “message” item, and “audio” item are displayed on the display screen, and these items are processed in steps 5P72 and SF33.5P74.5P75, respectively.
, SF36.5P77.5P7B or 5P79, the CPU 8 executes the process of each item, and when the process is finished, the above-mentioned step 5PIO
Move to.

Further, in the initial command standby state, when the user clicks on the first cycle of timer reservation in step SP81, the CPtJ8 displays the "registration" item, "change" item, and "inquiry" item on the display screen, and the user is step 5
When you click each item on P82.5P83 or 5P84, the "Calendar Reservation List" item and "1
The "weekly reservation table" item and the "daily child table" item are displayed. Then, when the user specifies one of them, C
The PL18 displays a calendar reservation table, a one-week reservation table, or a one-day child table in steps 5P85, 5P86, or 5P87, respectively, and allows the program to be reserved 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 manner, by executing the input information processing program RTO shown in FIG. 7, the CPU can reliably control the video tape recorder main body 3 based on the input data manually input by the user.

(G5) When one or more programs P1, P2, P3, etc. are recorded on the video tape 36, the CPU for recording control management data processing of the program start address records the recording start point of each program on the tape. The data expressed as the program start address value from the top is stored in the program information DP.
IX (Figure 6), record it in the start address field B1,
As a result, when performing processing such as playing back or re-recording each program on the recorded video tape 36,
The system is designed to be able to confirm the recording position of the program without running the tape to the recording position.

First, the control management data processing CPU 8 inputs data of each item of management data DA (FIG. 4) as input/output information S4 via the remote control transmitter/receiver 7 when the user operates the remote controller 6. When this is done, this is stored in the register 44, and then, for example, when the video cassette 35 is ejected and the management data recording mode is entered, the control management data processing CPU will:
Write management data I) av of register 44 Management data S
The image recording encoder 51 converts this into a data video signal 342 and supplies it to the recording circuit 32 via the recording switching circuit 31.

At this time, the recording circuit 32 processes the data video signal S42 in the same way as the recorded video signal S1, and processes the data video signal S42 in the same way as the video signal S42 forming the electromagnetic conversion circuit 33. is transmitted to the video recording tracks TA and TB (FIG. 3) of the video tape 36 as a signal corresponding to one field's worth of video signals via the magnetic conversion circuit and the video head (recording/reproducing head) constituting the magnetic head 34. Record.

Thus, on the video tape 36, for example, the management database video track recording area Fa is located at the top of the tape.
vv (Fig. 3) is formed, and the management database video track recording area FAVV is created as shown in Fig. 12 (B).
As shown in , the management data video signal VD, □ is recorded.

During this recording operation, the control management data processing CPU 8
The mark recording data is transferred as control signal recording data S44 to the TL recording encoder/decoder 54, and the CTL recording encoder/decoder 54 converts this into a data control signal S46! The control signal ii forming the magnetic converting circuit 33 and the control head forming the magnetic head 34 are sequentially activated to record the control signal recording track TC of the video tape 36.
Recording start point mark signal MKos at T (Fig. 12(C))
Record as.

Thereafter, the control management data processing CPU 8 records the control signal CT o in the control signal recording track TCT by transferring the control signal as control signal recording data S44.

When the control management data processing CPU 8 enters the program recording mode, the management database video track recording area F AV
Programs P1, P2, P3, etc. are sequentially recorded on video recording tracks TA and TB of the video signal recording area Fvo (Fig. 3) following V.
... program video signal VD8, VD,..., VDp
At the same time as recording the corresponding program audio signals AD0, AD, , AD, . . .
... is recorded on the audio recording tracks CH1 and CH2 (Fig. 12 (A)), and the control signal C
T□, CTP! , CT, . . . are recorded on the control I/roll signal recording track TCT (Fig. 12(C)
).

c for control management data processing in such program recording mode.
pus is the program video signal VD6, VDpz, VDP3.
At the timing of the recording start point of..., the CTI
, by giving mark signal data as the controller 10-other signal recording data S44 to the recording encoder/decoder 54, recording start point mark signals MKp+s, MKpz
s, MKtss -- (FIG. 12(C)).

In this embodiment, the mark signal M K (l S, M K
P I S, M Kpts, M Kp3m...
. . . are tape position address values from the tape top reference point of the video tape 36, and these tape position address values are, for example, the values of the tape counter circuit provided in the video tape recorder main body 3, and the mechanism control CPU 11. The information is obtained by transferring the information to the control management data processing CPU 8 via the computer.

In the above configuration, when the recorded video cassette 35 is loaded into the video tape recorder body 3, the control management data processing CPU 8 enters the management data playback mode while communicating with the mechanism control CPU 1 to manage the video tape 36. The data video signal picked up from the data head video track recording area F AVV is transferred to the magnetic head '34, the electromagnetic conversion circuit 33, the reproduction circuit 37,
It is read out via the reproduction switching circuit 38 and the image recording decoder 52 and written into the register 44.

Thus, the register 44 contains the management data DAv (FIG. 4).
is held as management data unique to the video tape 36, and the video tape 36 is stored in the program information block DPI.
Each program recorded on PL, P2, P3...
Program information about □ (Figure 6) is held.

Thus, the recording start point MKPI of programs PI, P2, P3, etc. is set in the start address field B1 of each program information D□8.
The positional information of II, MKpzs, MKp3s .

Therefore, by checking the contents of the start address item B1 of each program information DP, 1X, the user can fast-forward the videotape 36 to change the recording position of the program currently recorded on the videotape 36 and run it at the playback speed. This information can be easily accessed without any complicated work, and each program can be easily accessed.

(G6) Recorded program rewriting control management data processing CPU 8 selects a predetermined program among the plurality of programs P1, P2, P3, etc. recorded on the video recording tracks TA, TB of the video tape 36. If you want to record a new program only in the recorded area,
Second control head 34A1 erase head 34B, recording/reproducing head (video head) 34C shown in FIG.
And a new program is recorded by the first control head 34D.

For example, when trying to record a new program in the recording area of the second recorded program P2 (FIG. 12), the control management data processing CPU 8 first requests the mechanism control CPU II to record the second recorded program MP2. Starting point mark signal MKp=
A command to search for s is sent via bus 10.

When the mechanism control CPU 1 receives the command,
Control signal S that commands fast forward or rewind according to this
7 to the videotape drive 57.
The videotape 36 is fast forwarded or rewinded.

At this time, the control management data processing CPU 8 manually inputs the control signal read out via the first control head 34D via the recording/reproducing circuit 33B provided in the 1i magnetic conversion circuit 33 and the CTL recording encoder/decoder 54. If the input control signal is a recording start point mark signal, it is sent to the mechanism control CPU II via the bus 10.

The mechanism control CPU 1 inputs the recording start point mark signal MK□S corresponding to the second program from the control management data processing CPU 8 and stores it in advance, so that the mechanism control CPU 1 inputs the recording start point mark signal MK□S corresponding to the second program from the control management data processing CPU 8 and stores it. Recording start point mark signal MKp whose start point mark signal is stored in advance
z*, and when a positive result is obtained, this means that the first control head 34D has reached the recording start area of the second program P2, and at this time, the mechanism control The CPU 1 stops the running of the video tape 36, and sends a signal indicating that the search operation has been completed to the control management data processing CPtJ8.

Therefore, the control management data processing CPU 8 executes the recording operation of a new program at this time, erases the program recorded in the second program P2 by the erasing head 34B, and the recorded video signal si is transmitted to the recording circuit 32, switch times 1
Recording is started from the beginning position of the recording area VDPg of the second program P2 of the video tape 36 via the recording/reproducing head 34C provided on the rotary drum 33C and the rotating drum 3A, and the control management data processing CPU 8 records a new control signal. The data S44 is transferred to the CTL recording encoder 54, the recording/reproducing circuit 33B, and the first control head 34D.
The second program P is sent as a new control signal via
Recording is started on the control signal recording track TCT in area 2.

At this time, a new audio signal is recorded on the audio recording tracks CHI and CH2 via an audio head (not shown).

Here, the second control pad 34A is the erase head 3.
By being provided on the upstream side in the running direction a of the video tape 36 with respect to 4C, the control management data processing CP
U8 can detect the control signal and recording start point mark signal before being erased by the erasing head 34G.

Therefore, at this time, the control management data processing CPU is
The control signal read out through the control head 34A is input as control signal reproduction data S50 through the reproduction circuit 33A provided in the 11 magnetic conversion circuit 33 and the CTL reproduction decoder 55, and the area of the second program P2 is It waits for input of the third recording start point mark signal MK P3ffi recorded at the beginning position of the program area of the third number &11P3 following the end of the program.

Eventually, when the third recording start mark signal MKpss is input, the control management data processing CPU 8 ends the recording operation by instructing the mechanism control CPtJ11 to end the recording operation, and the area of the second program P2 is Even if the length of the program to be newly recorded is longer than the length of the program, it is possible to prevent the new program from being recorded in the area of the third program P3 beyond the area of the second program P2.

Thus, by reading out the third recording start point mark signal MKrffs via the second control head,
To be able to reliably stop the recording operation before erasing the third program P3 that must not be erased, and thereby record a new program only in the area of the second program P2 that may be erased. I can do it.

After recording a new program in this way, the control management data processing CPU 8 rewrites the management data DAv stored in the register 44 in accordance with the rewriting operation of the program, and then rewinds the videotape 36 to record the tape. Program information in the management data recording area provided at the top, -
is rewritten, and the program rewriting operation ends.

Thus, by providing the second control head 34A on the upstream side in the running direction a of the video tape 36 with respect to the erasing head and reading out the recording start point mark signal from the video tape 36 during the recording operation, the recording operation can be controlled. The area in which the program is currently being recorded can be constantly monitored, thereby ensuring that the program is recorded only in a predetermined area.

(G7) Other embodiments (1) In the above embodiment, the video recording track T
A, a case has been described in which management data DAv is recorded in TB, and a mark signal representing the recording start point of each program is recorded in control signal recording track TCT, but instead of this, management data DAv is recorded in audio recording. The information may be recorded on the tape top portion of the tracks CHI, CH2 or the control signal recording track TCT.

In addition, the mark signal is controlled by the control signal recording track TCT.
Instead of recording on the audio recording track CHI
, CH2 or the video recording tracks TA and TB.

(2) In the above-described embodiments, the present invention is applied to a recording and reproducing device having a recording and reproducing head on a rotating drum, but the present invention is not limited to this, and the present invention is not limited to this, and the present invention is not limited to this, and the present invention is not limited to this. The present invention can also be applied to recording/reproducing devices.

(3) In the above embodiment, the management data DAv is configured such that the volume information block D□ and the program information block DPI are written in that order from the beginning position of the recording track. Various changes may be made, such as replacing the ingredients, or dividing them into smaller pieces and mixing them in some cases.

(4) In the above-mentioned embodiment, the case where the present invention was applied to a video tape recorder was described, but instead of this, for example, DAT (digital audio
The present invention can also be applied to other types of recording and reproducing devices, such as a recording and reproducing device adapted to record audio signals such as a tape recorder.

Effects of the Invention As described above, according to the present invention, the control signal detection head is provided upstream of the erasing head with respect to the running direction of the recording medium, thereby ensuring that the program is recorded only in a predetermined area. can be recorded.

[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 database; 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 route map showing the format of the start address, and Figure 13 is rewriting of recorded programs. FIG. 2 is a block diagram for explaining the operation. 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 (CPU) for control management data processing, 12... Keyboard, 3
2... Recording circuit, 33... Electromagnetic conversion circuit, 34A... Second control head, 3
4B... Erasing head, 34C... Recording/playback head, 34D... First control head, 35... Video cassette, 36...
...Video tape, 37...Reproduction circuit, 51
．． 52... Image recording encoder, 53...
...Audio recording encoder/decoder, 54...
...CTL recording encoder/decoder, 55...
...Decoder for CTL playback.

Claims (1)

[Claims] One or more programs are sequentially recorded along the running direction on a recording medium running in a predetermined direction, and the position information of the recorded program is transferred to a recording medium running in a predetermined direction. The program and the position information are recorded on a control signal recording track formed on the recording medium along a direction, and the program and the position information are recorded on the recording medium running in the predetermined direction in a recording mode. In a recording/reproducing device that records new program and position information on the recording medium using a predetermined recording head after erasing with a predetermined erasing head, the recording/reproducing device records new program and position information on the recording medium using a predetermined recording head, the recording medium is configured to be configured such that the recording medium is moved in the direction of travel of the recording medium. A recording/reproducing device comprising a control head on an upstream side for reading out the position information.