JP2805103B2 - Recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial field B Outline of the invention C Conventional technology D Problems to be solved by the invention E Means for solving the problems (FIGS. 1, 3 and 4)
(Fig. 1) Function (Figs. 1, 3 and 4) G embodiment (G1) Overall configuration of video tape recorder (Fig. 1) (G2) Functional block of video tape recorder (Fig. 2)
(G3) Video tape recording format (Figs. 3 to 6) (G4) Video tape recorder setting processing (Figs. 7 to 7)
(Fig. 11) (G5) Recording of program start address (Fig. 12) (G6) Rewriting of recorded program (Figs. 12 and 13) (G7) Other embodiments H Effect of invention A Industrial application field Book The present invention relates to a recording / reproducing apparatus, and is suitably applied to, for example, a consumer video tape recorder.

B. Summary of the Invention The present invention provides a recording / reproducing apparatus in which a control head for reading out program position information is provided upstream of an erasing head with respect to a running direction of a recording medium, so that a program is newly recorded only in a predetermined area. can do.

C Conventional Techniques When recording a plurality of programs on a video tape extending in the longitudinal direction, a conventional consumer video tape recorder records a cue signal at the beginning of each program.
For example, if the user wants to play a desired program from a recorded tape, the user sets the video tape recorder to the search mode once, fast-forwards the video tape to a position where the cue signal can be played, and then switches to the playback mode. It is designed to check whether the program is desired to be watched.

D Problems to be Solved by the Invention In such a conventional video tape recorder, position information (a cue signal) of the video tape is recorded in the longitudinal direction of the video tape, and the position information is stored in a predetermined direction. By reading with a detection head (hereinafter referred to as a control head), for example, when a plurality of programs are recorded on a video tape, a predetermined program is searched from among the plurality of programs (search operation).
It is made to be able to do.

Therefore, when a new program is to be recorded in a predetermined program recording area of a plurality of recorded programs, the program is searched for by a search operation, and then a new program recording operation in the relevant program area is performed. Has been made to start.

Here, as a program recording operation, in a conventional video tape recorder, an erasing head is provided on the upstream side in the video tape running direction with respect to a magnetic head for recording and reproducing a video signal, and the control head is provided on the downstream side. After locating the program using the control head on the downstream side, the recorded program is erased by the erasing head on the upstream side as a new program recording operation. A new program is recorded by a magnetic head for signal recording and reproduction.

However, since the erase head is provided on the upstream side with respect to the control head, when a program recording area that cannot be erased comes next to a program recording area that can be erased, the detection head on the downstream side is used. Therefore, the upstream erasing head erases the position information of this program area before detecting the head position of the program recording area which should not be erased, so that the recording operation is continuously executed and the erasing is performed. There is a problem that programs that should not be deleted may be deleted.

The present invention has been made in view of the above points, and is intended to propose a recording / reproducing apparatus capable of recording a new program only in a desired program recording area among a plurality of programs recorded on a recording medium. Is what you do.

E. Means for Solving the Problem In order to solve the problem, in the present invention, one or a plurality of programs P1, P2, P3... Are sequentially recorded on the tape-shaped recording medium 36 along the running direction a. , And the position information indicating the recording positions of the recorded programs P1, P2, P3,... Is recorded on the control signal recording track TCT formed on the tape-shaped recording medium 36 along the running direction a. After the program and position information recorded on the tape-shaped recording medium 36 traveling in the traveling direction a in the recording mode are erased by the erasing head 34B, the tape-shaped recording is performed by the recording heads 34C and 34. In the recording / reproducing apparatus 1 for recording a new program and position information on the medium 36, the control signal recording track TC in the search mode is disposed at a position downstream of the erasing head 34B with respect to the running direction a.
A first control signal detection head 34D for detecting the position information of each program recorded in T, and a control signal recording track TCT which is arranged at a position upstream of the erasing head 34B with respect to the running direction a and is in a recording mode. And a second control signal detecting head 34A for detecting the position information of each program recorded in the search mode, and the position information detected from the first control signal detecting head 34D in the search mode indicates a target program to be searched. When the position information matches the position information, the search mode is terminated, and in the subsequent recording mode, the recording mode is terminated when the second control signal detecting head 34A detects the next position information. Control means 8 for recording a new program in a portion between the position information of the target program and the next position information,
11 and so on.

F function In the running direction a of the tape-shaped recording medium 36, a first control signal detecting head 34D is provided at a position downstream of the erasing head 34B, and a second control signal detecting head 34A is provided at the upstream side. With the provision, the new program can be reliably re-recorded only in the recording area of the program to be re-recorded on the tape-shaped recording medium 36.

G Example Hereinafter, an example of the present invention will be described in detail 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 supplies a recorded video signal S1 input via a video signal processing unit 2 to a video tape recorder main body 3. By recording this, the reproduced video signal S2
Is supplied to the monitor 4 via the video signal processing unit 2 as a video output signal S3.

In addition to this, a control management data processing unit 5 is provided, and an input / output information signal S4 supplied from a remote control controller 6 is taken into a control management data processing central processing unit (CPU) 8 via a remote control transceiver 7. Thus, the control information S5 is transmitted to the bus 9, thereby controlling the video signal processing unit 2 and the circuit elements constituting the video tape recorder main body 3, and the control information S6 is transmitted via the bus 10 to the video tape recorder main body 3. By communicating with the mechanism control central processing unit (CPU) 11, a control signal S7 for a mechanism request constituting the video tape recorder main body 3 is generated.

The video signal processing unit 2 receives a received video signal S11 received by the tuner 21, an external line video signal S12 supplied from an input line of an external video signal source, and an internal synchronization circuit 2.
2 to the input selection circuit 23.
Input to the superimposed feeder circuit 24 through
Thus, the recorded video signal S1 is obtained at the output terminal of the superimpose feeder circuit 24.

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

In the playback mode, the video signal recorded on the video tape 36 is picked up by the playback circuit 37 via the magnetic head 34 and the electromagnetic conversion circuit 33 in order, and is sent to the video signal processing unit 2 as the playback video signal S2 through the playback switching circuit 38. Is done.

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

CPU 8 for control management data processing of control management data processing unit 5
Is a basic data stored in the ROM-based basic data memory 43 and a RAM-based register based on the input / output information signal S4 input from the remote control controller 6 or the input information signal S8 input from the VTR keyboard 12. By processing the processing data stored in 44 based on the clock signal of the clock circuit 45, the bus 9 and the bus 9 are processed.
The control information S5 and S6 are transmitted to 10.

In this embodiment, a card reader 46 is connected to the bus 9, and the control management data processing CPU 8 stores the basic data read from the IC card 47 in the card reader 46 in the register 44.
It is made to be able to take in.

When it is necessary to notify the user of the processing result obtained by performing data processing in the control management data processing CPU 8 in this way, the control management data processing CPU 8 uses the video display as a part of the control information S5. The image display information signal S14 is supplied to the processor 41, and the image display signal S15 read from the video RAM 42 is supplied to the superimpose fader circuit 24 by the image display information signal S14, so that the input selection circuit 23 By supplying a superimposed output signal S17 obtained by superimposing the image display signal S15 to the supplied video signal S16 to the video processing circuit 40 through the output selection circuit 39, the display screen 4A of the monitor 4 is displayed on the display screen 4A. By displaying an image obtained by superimposing an image signal consisting of characters, characters, diagrams, etc. on the video signal, It is configured to interact.

In the case of this embodiment, the control management data processing CPU 8 displays an image composed of characters, characters, diagrams, and the like on the display screen 4A of the monitor 4 and sends an image signal representing the same image from the remote control transceiver 7 The input / output information signal S4 is supplied to the remote control controller 6 so that the same image as the display screen 4A of the monitor 7 is displayed on the display screen 6A of the remote control controller 6.

Here, the control management data processing CPU 8 writes, as a part of the control information S5, the write management data S25 related to the recording and reproduction operations of the video tape recorder main body 3 through the image recording encoder 51, further the recording switching circuit 31, and the recording switching circuit 31. The recording data is recorded on the video recording track of the video tape 36 through the circuit 32 and the electromagnetic conversion circuit 33 in order, and the management data written in the video recording track is converted to the electromagnetic conversion circuit.
When the data is read through the reproduction circuit 33, the reproduction circuit 37, and the reproduction switching circuit 38, it can be fetched as read management data S26 via the bus 9 via the image recording decoder 52.

In addition, in the case of this embodiment, the control management data processing CPU 8 converts the 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 to electromagnetic conversion. By supplying the data to the circuit 33, the management data D _AV is recorded on the audio recording tracks CH1, CH2 of the video tape 36 via the magnetic head 34, and the audio tracks CH1, C2 of the video tape 36 are recorded.
The management data D _AV recorded in H2 is read out from the electromagnetic conversion circuit 33 via the magnetic head 34, and the audio recording encoder /
By reading to the decoder 53, the read management data S28
The control management data processing CPU 8 captures the data.

Further, in the case of this embodiment, the control management data processing CPU 8
Is the write management data S2 given to the image recording encoder 51.
Write management data S29 similar to 5
By supplying the electromagnetic conversion circuit 33 through decoder 54, and records the control signal recording track TCT of the video tape 36 to the management data D _AV through the first control head 34D of the magnetic head 34 (FIG. 13), first control head 34D (Fig. 13) is read from the electromagnetic conversion circuit 33 through the CTL recording encoder / decoder 54 of the control signal recording track TCT magnetically recorded management data D _AV in the head 34 of the video tape 36 In this way, the control management data processing CPU 8 reads the data as read management data S30.

Furthermore, in the case of this embodiment, the control management data processing
CPU8 is management data D _AV recorded in the control signal recording track TCT of the video tape 36 of the magnetic head 34 second
The data is read out from the electromagnetic conversion circuit 33 via the control head 34A (FIG. 13) and is read out to the CTL reproduction decoder 55, so as to be taken into the control management data processing CPU 8 as read management data S48.

(G2) Function block of the video tape recorder The control management data processing CPU 8 controls the video tape recorder as a whole according to the function block as shown in FIG.

That is, when receiving a command input from the keyboard 12, the CPU 8 functions as an interrupt processing means in a block BK1, and then functions as a system schedule means and a database holding means in a block BK2. At this time, the system schedule means and the database holding means manage the time series of the entire system and block BK3.
It communicates with the timer reservation database creating means to execute the function as the artificial intelligence module indicated by the block BK4 and the function as the application processing means indicated by the block BK5.

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

The habit learning and inference system BK4B learns and infers the user's habit based on the manner of the instruction content in the natural language, and the habit database creation system BK.
Create a habit database by 4C.

In the application processing means BK5, the CPU 8 controls the management database module BK5B, the user's preference module BK5C, and the system setting module BK5D by the module processing means BK5A.
And executes the function of the timer reservation module BK5E.

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

When processing the artificial intelligence module BK4 and the application processing means BK5, the CPU 8 executes the common data area processing block.
At BK6, processing such as timer reservation packet and flag processing is executed.

The processing in the application processing means BK5 is performed by the input / output driving means BK7.
Are connected to a video tape recorder main body 3, a monitor 4, a remote control transmitter / receiver 7, and a remote control controller 6 as external devices via the PC.

(G3) Recording Format of Video Tape As shown in FIG. 3, the video tape 36 is composed of video recording tracks TA and TA having different azimuth angles formed along the head scanning direction b obliquely crossing the tape running direction a. TBs are formed so as to be adjacent to each other in the direction of the tape running direction a, and the control signal (CTL) recording track is formed along the longitudinal direction of the video tape 36 on the outer edges of the video recording tracks TA and TB at the entry side ends thereof. A TCT is formed to record the control signal CT, and a video tape 36
The audio recording tracks CH1 and CH2 for two channels are formed at the detaching side edge of the recording medium.

Over a period of video recording tracks TA and TB of the predetermined number of tracks in the recording start head portion connexion management database video tiger poke recording region F _AVV is provided a video tape 36, subsequent to the management database video tiger poke recording region F _AVV,
A video signal recording area F _VD in which one field of video signal is recorded in each of the video recording tracks TA and TB.
Are formed.

The management data D _AV having the configuration shown in FIG. 4 is recorded in the recording tracks TA and TB belonging to the management database video track recording area F _AVV .

Also at a predetermined track position in the example Teputotsupu portion of audio recording tracks CH1 and CH2 are formed management database audio tiger poke recording region F _AVA,
This management database audio track recording area F _AVA
Similarly, the management data _DAV having the configuration shown in FIG. 4 is recorded.

The predetermined track position in the example Teputotsupu portion of the further control signal recording track TCT is formed management database control signal track recording area F _AVC, in the same manner in the management database control signal track recording area F _AVC, shown in FIG. 4 The configuration management data D _AV is recorded.

The management data D _AV is configured to sequentially record the volume information block D _VM and the program information block D _PR in that order from the head of the recording track.

The volume information block D _VM is management information on the video cassette 35 mounted on the video tape recorder main body 3, and includes, for example, items A1 to A15 as shown in FIG.
It is recorded as volume information D _VMX for 35 [bytes].

The information of item A1 represents "format version",
The version number of the management data D _AV is recorded by one [byte] data, and the format version is identified when the video cassette 35 is mounted, so that the management data D _AV of the old version is identified. Set up the system to handle this even.

Item A2 when recording the management data D _AV for the "number of times of repetitive recording" represents, for example, 1 by the data [bytes] connexion management database audio tiger poke recording region F _AVA, and records the number of times of repetitive recording. Thus, the number of times the management data D _AV has been recorded using the audio signal recording method is recorded as reference data.

Item A3 represents “number of screens used”, for example, 1 [byte]
The I connexion management data D _AV in the data record the number of recording tracks that use the number of screens (i.e. the management database video tiger poke recording region F _AVV occupies when recording the video cassette 35, and thereby the video signal recording area F _VD The system can determine the position of the first track.

The item A4 indicates the “number of used programs”, and records the number of reserved or recorded programs and the presence or absence of a recording space in the video cassette 35 using, for example, 1 [byte] data.

In this embodiment, the number of programs reserved or recorded by the 0th to 6th bits can be recorded up to a maximum of 32 programs, and the recording space can be recorded by the 7th bit (logic " Record whether there is no recording space (represented by logic "1") or recording space (represented by logic "1"). In this way, even if the number of used programs is less than 32 at the maximum, depending on the tape length of the video cassette 35 or the length of the reserved or recorded program, if there is no recording space, this should be done. This can be confirmed by the seventh bit.

The item A5 indicates “generation date and time”. For example, the management data D _AV is first transferred to the video cassette 3 using 5 [bytes] of data.
Record the date and time written in 5.

In this embodiment, the first, second, third, fourth, and fifth bytes are "minute", "hour", "day", "month", "year", respectively.
Is recorded in a two-digit binary coded decimal number, and thus the video cassette 35 is recorded by using the volume information D _VM indicating the date and time of generation.
It has been made to be able to judge the age of.

Item A6 represents the "update date and time", to record the date and time you change the by go-between management data D _AV in the data, for example, 5 [bytes].

In the case of this embodiment, the update date and time data are sequentially stored in the first, second, third, fourth, and fifth bytes as "minute", "hour",
"Day", "month", recorded in binary-coded decimal the "year", thus are management data D _AV that are currently in use have been made so as to be able to confirm whether the one that is always changing.

Item A7 represents "system volume number". For example, when the video cassette 35 is a so-called series of 8 [byte] data, the series number is recorded using 8 [byte] data. It is made possible to confirm that the currently installed video cassette 35 is a series and its series number,
A system volume number is added to the recording reservation information of the video tape recorder main body 3 so that it can be displayed on a monitor, whereby the user can be notified of the video tape 36 to be reserved and recorded.

Item A8 represents “screen display color”, for example, 2 [bytes]
For example, when a list is displayed, etc., the display color can be designated by the data of the above, whereby when the user mounts the video cassette 35 to display the list display screen, the color of the displayed screen is displayed. Thus, it is possible to immediately determine which cassette the user has worn.

Item A9 represents “various flags”, for example, 1 [byte]
According to this data, a plurality of types of flag data can be recorded.

In this embodiment, the user can record a "recording prohibition" flag in the 0th bit, so that the recorded contents of the video cassette 35 can be stored.

Further, a "format completed" flag can be input to the first bit by the system, so that it can be confirmed whether or not the entire recording area of the video tape 36 has been completely formatted. .

Further, an "address mode" flag indicating the type of the program end address can be input by the system using the second and third bits, whereby the program end address is recorded in different modes by the video cassette 35. In such a case, it is ensured that this can be detected.

Item A10 represents "type of video cassette", and the length and type of tape can be recorded using, for example, 2 bytes of data.

In this embodiment, the first byte can be automatically set by the system, while the second byte can be set by the user as needed.
Thus, when the video cassette 35 is mounted, the type and length of the tape can be confirmed so that the hub diameter to be used can be confirmed.

Item A11 represents a "password", and allows a user to register a password represented by a 4-digit binary coded decimal number using, for example, 2 [byte] data.

Thus, when the user attaches the video cassette 35 with the registered password to the video tape recorder body 3 and the user cannot correctly input the password registered in the video cassette 35, the recording and reproduction of the video cassette 35 is prohibited. Thus, the contents of the video tape 36 cannot be viewed.

The item A12 indicates "user volume number". For example, the user can record a video cassette rearranging number, that is, a volume number in the video cassette 35 according to his / her preference by using 2 bytes of data. In the case of the embodiment, a volume number can be assigned in the range of 0 to 64000 in a binary-coded decimal number, and can be displayed on a monitor by adding a user volume number to the recording reservation information of the video tape recorder body 3. So that the videotape to schedule recording
36 is made available to the user.

Item A13 represents "playback order", for example, 32 (bytes)
In the so-called program playback mode, the program recorded in the order from the first byte to the 32nd byte in the program playback mode can be recorded as required by the data of the maximum 32. Are sequentially designated for playback.

Item A14 represents "recording order", for example, 32 (bytes)
According to this data, a maximum of 32 program numbers can be recorded in 32 recording order positions.

Thus, in the so-called program reproduction, the programs of the program numbers recorded in that order from the first byte to the 32nd byte can be sequentially reproduced by the program.

Item A15 represents "Volume label", for example, 40
[Byte] data allows the user to add a label such as a title to the video cassette 35 as necessary, and also adds a volume label to the recording reservation information of the video tape recorder body 3. The addition 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 4 when using ASCII code
0 characters can be recorded, up to 20 when using S-JIS code
Character labels can be recorded.

This as the program information block D _PR shown in FIG. 4 with respect to, so as to correspond to the video is recorded on the tape 36 or recording reserved program information of the video cassette 35, the program information as shown in FIG. 6 It is composed of D _PRX .

Item B1 represents a "start address". For example, the start address value of each program is set to a video cassette based on the start address of the video tape 36 by 3 [bytes] of data.
After a program is recorded in 35 video signal recording areas F _VD ,
Written by the system.

In the case of this embodiment, a time mode is used as a mode of the address value ("second", "minute", and "hour" are represented by binary coded decimal numbers).
And the program number mode (VASS (VHS), video address sig
nal search (VHS) standard)
Control signal mode (CTL (β)
(Represented by the number of pulses) can be selectively applied.

Item B2 represents an "end address", and records a number end address value from the head position of the video tape 36 by, for example, 3 [bytes] of data.

In the case of this embodiment, the time mode, the program number mode, and the control signal mode can be selected as the program end address value in the same manner as the program start address value.

Item B3 represents “various flags”, for example, 1 [byte]
The information indicating the handling state of the program information is recorded by the data of (1).

In the case of this embodiment, "recorded information" (indicating whether or not the program is in a recording state) is written in the 0th bit and the first bit is written.
And "recording end status information" (representing an end state when recording is completed) is written in the second bit, and a "recording enable flag" (representing whether or not recording should be prohibited) is written in the third bit. 4 bit "saw flag information"
(Indicating whether the user has viewed the recorded program at least once).

Item B4 represents “system program number”, for example, 1
A series of serial numbers assigned to the program by the system are recorded by [byte] data.

In the case of this embodiment, "0" is sequentially
A series of numbers consisting of "1", "2",... Is written as a system number.

Item B5 indicates “program number”, for example, 1 [byte]
According to the above data, the number of times of a series program (for example, a serial drama) can be input by a user.

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

Item B7 represents “input source”, for example, 1 [byte]
An input source indicating where the program was obtained from is recorded by the data of (1).

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

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

In this embodiment, the video cassette is used as the recording mode.
When 35 is recorded by a video tape recorder of “β system”, “VHS system” or “8 mm video system”, the recording mode is written. ”,“ Β II mode ”, and“ β III mode ”.
Write the type of "Method", "LP method", "EP method", and "SP mode", "LP mode" for 8mm video method
Write the type of As the operation mode at the time of recording, for example, types such as "normal recording mode" and "mode 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 embodiment, "minute", "hour", "day", "month", and "year" are sequentially stored in the first, second, third, fourth, and fifth bytes, respectively.
The user writes in an evolved decimal number.

Item B10 represents "recording end time", and records the end time of a reserved or recorded program using, for example, 2-byte data.

In this embodiment, the first and second bytes include "minute" and "hour".
Write data in binary coded decimal.

Item B11 represents “reserved recording control information”, for example, 10
The [byte] data is used to make the video tape recorder main unit 3 (FIG. 1) perform the scheduled recording operation at the time of executing the scheduled recording, and record information for controlling peripheral devices to be operated in response thereto.

Item B12 represents "title", for example, 40 (bytes)
The user writes character information indicating the title of the program using the data of (1).

(G4) Video tape recorder setting processing CPU 8 is remote control controller 6 or keyboard
The control management data processing unit 5, the video signal processing unit 2, and the video tape recorder main unit 3 are processed based on the command signal input from the processing program shown in FIGS. 7, 8 and 9.
By controlling according to RT0, RT1, and RT31, the operation state is controlled by the user.

In the case of this embodiment, as shown in FIG. 10, the remote control controller 6 has a display screen 6A in which a touch panel is provided on a liquid crystal plate on an operation panel on the surface of the case, and designated items are displayed on the display screen 6A. When is displayed as a list,
By directly pressing each display item and performing a click input, a designation signal relating to the display item can be input. In addition to this, the cursor displayed on the display screen 6A is moved by the four-directional cursor key 6B to designate a predetermined display item, and then the execution key 6C is operated to send a designation signal relating to the display item. It is made to be able to input.

Further, the remote control controller 6 includes a normal operation command key 6D, a menu display command key 6E, a management data mode command key 6F, a reservation 1 and a reservation 2 operation mode designation key 6G.
And 6H, and the operation mode of the video tape recorder 1 can be designated to the CPU 8 by these mode designation keys.

In step SP1 of the input information processing program RT0 in FIG. 7, the CPU 8 waits for the power-on operation, and when a positive result is obtained, in step SP2, determines whether or not the power-on operation is the first time. When the first time, the processing of steps SP3, SP4 and SP5 is sequentially executed to display the message "set the time" on the display screen 4A of the monitor 4 and the display screen of the remote control controller 6.
After displaying on 6A, the current time is set by the system setting operation mode and the display of "Time set" is displayed on display screen 4A.
And 6A.

Thus, the video tape recorder 1 enters a command standby state in which the current time is set.

This command standby state is maintained even when a negative result is obtained in step SP2. Thus, in the command standby state, the “management database”, “system setting”, “favorite setting” and “timer reservation” items are set. Is ready to be specified.

Actually, in this command waiting state, when the menu display mode designation key 6E is operated on the remote control controller 6 (or the keyboard 12), the display screen is displayed.
6A and 4A "Management database", "System settings",
By displaying operation mode designations of "favorite setting" and "timer reservation", the user can designate one of the operation modes by a click operation.

In the "management database" mode, the management database video track recording area _FAVV of the video tape 36 (FIG. 3) is used.
Or management database audio track recording area F _AVA
In this operation mode, the CPU 8 records the management data D _AV (FIG. 4) or drives and controls the video tape recorder body 3 using the recorded management data D _AV.
SP6 whether the video cassette 35 is excisional having a tape management data D _AV in step SP7 when the "management database" item is clicked is recorded (referred to as management data tape this) among menus display items in After performing various processes of the management database in subroutine RT1 when it is set, it is determined whether or not the contents of the management database have been changed in step SP8. executes Bideotoratsuku recording region F _AVV or the management database audio tiger poke recording area F as rewrite recording data of _AVA in the management data after the change processing.

This completes the process for the management database,
In step SP10, it is determined whether the power has been turned off or not. When a negative result is obtained, the process returns to the command waiting state. When a positive result is obtained, the input information processing program is terminated in step SP11. .

Upon entering the various processing routines RT1 of the management database described above, the CPU 8 displays the management data list on the display screen 6A of the remote control controller 6 and the display screen 4A of the monitor 4 in step SP21 as shown in FIG. , And enters a command standby state.

At this time, “Label”, “Cancel reservation”,
Items such as "automatic reproduction", "manual reservation", "program information confirmation" and "management data reservation" are displayed, so that one of the items can be designated.

Here, the “label” item is a volume information block D _VM or a program information block D _PR (fourth of the management data D _AV ).
FIG. 4 shows an operation mode in which one of the volume information or the program information included in FIG.
When the "label" item is clicked at 22, one of the items can be selected by displaying the "password", "recording mode", "tape type", "category" and "title" items on the display screen. State.

Here, when the user clicks the "password" item, the CPU 8 proceeds to step SP23 to
_The password data recorded in item A11 of _VMX (FIG. 5) can be rewritten by the user.

Similarly, the CPU 8 executes the program information D _PRX in step SP24.
The recording / operation mode recorded in item B8 of FIG. 6 can be designated to write the recording mode data.

Also, the CPU 8 executes the volume information D _VMX in step SP25.
The tape type data among the data indicating the type of the video cassette recorded in the item A10 of FIG. 5 can be rewritten.

In step SP26, the CPU 8 executes the program information D _PRX (the sixth
The category code data recorded in item B6 of FIG. 7 can be rewritten.

Further, the CPU 8 can rewrite the title data recorded in the item B12 of the program information D _PRX (FIG. 6) in step SP27.

After rewriting the data of the "password" item to the "title" item in steps SP23 to SP27 in this way, when the "end" item is specified in step SP28, the CPU 8 ends the processing of the management database and ends the step SP
From 29, the process returns to the management database processing loop shown in FIG. 7 to enter the processing of step SP8.

On the other hand, if the user clicks the "cancel reservation" item in the command standby state in which the management data list is displayed in step SP21 of FIG. 8, the CPU 8 proceeds to step SP21.
In SP30, all program reservations recorded in the management data list are canceled.

Also, when the user clicks on the "auto play" item,
The CPU 8 determines the volume information D _VMX (step 5) in step SP31.
The reproduction order data of the item A13 shown in the figure) is reproduced in a fixed order and rewritten as necessary.

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

When the processing of steps SP30, SP31 and SP32 ends, the CP
U8 returns to the management database processing loop (FIG. 7) through the above-mentioned steps SP28 and SP29.

When the user clicks the "program information confirmation" item in the command standby state for displaying the management data list in step SP21 of FIG. 8, the CPU 8 enters the processing of step SP33 and displays the display screen in step SP34. Switch the display of step SP35 or SP36 or SP3
7, or SP38, the recorded contents of the "recording permitted" item, the "watch flag" item, the "category" item, and the "title" item of the volume information D _VMX (FIG. 5) and the program information D _PRX (FIG. 6) Becomes a display mode in which can be confirmed or rewritten.

In the case of this embodiment, a predetermined picture display, that is, a character is used as the data of the “recording permission” item, the “seen flag” item, the “category” item, and the “title” item. Thus, information recorded on a plurality of reserved programs can be confirmed and changed.

When the processing of steps SP35 to SP38 is completed, the CP
U8 returns to the management database processing loop (FIG. 7) via steps SP28 and SP29.

Further, when the user clicks the "reservation of management data" item in the command standby state displaying the management data list, the CPU 8 enters the management data subroutine RT3 and forms a part of the processing procedure as shown in FIG. The management data reservation processing procedure RT31 for switching the reservation mode is executed.

At this time, the CPU 8 allows the user to select the timer reservation mode in step SP41.

In the case of this embodiment, as a specification item list that can be presented to let the user specify and select the specification item of the management data,
As shown in FIG. 11, a word specification item list table TBL consisting of word input items representing the specification item using natural language, and the specification item is represented using graphic elements such as Roman letters, numbers, symbols, etc. as usual. A graphic specification item list, which is a graphic input item, is prepared. At step SP41, the CPU 8 allows the user to select and specify either a word input or a graphic input as a reservation screen to be used.

As a result, when the word input is selected, the CPU 8 executes the step.
The process proceeds to SP42, where the word designation item list TBL is displayed on the display screen, and the data corresponding to the word entry item designated by the user is loaded into the register 44.

Conversely, if graphic input is selected, CP
U8 proceeds to step SP43 to display a graphic specification item list on the display screen, and fetches data corresponding to the graphic input item specified and operated by the user into the register 44.

Thus, when the user's designation input operation is completed, the CPU 8 ends the management data reservation input processing and returns to the processing loop of the management database in FIG.

At this time, the CPU 8 subsequently displays a “register” item, a “change” item, and an “inquiry” item on the display screen, and proceeds to step SP51,
In SP52 and SP53, the user clicks on the "registration" item, "change" item, or "inquiry" item to enter a process of executing this.

Here, in processing the clicked item, the CPU 8 can display the calendar reservation table, the weekly reservation table, and the daily reservation table in steps SP54, SP55, and SP56, respectively, according to the user's selection. The start time and / or end time of the reserved program is written on a calendar reservation table, a one-week reservation table, or a one-day reservation table.

When such processing is completed, the CPU 8 terminates the processing program of the management database in the above-mentioned step SP28,
Step SP29 to the management database processing loop (7th
Return to figure).

The above steps are performed in the initial command standby state shown in FIG.
In SP6, the management data can be recorded, changed,
In the initial command standby state, if the user clicks another specified item, that is, a “system setting” item, a “preference setting” item, or a “timer reservation” item, the CPU 8 Executes a process of setting operating conditions of each unit of the video tape recorder 1.

That is, when the user clicks "system setting" in step SP61 of FIG. 7, the "current time" item, the "sleep timer" item, and the "recording mode" are displayed on the display screen.
Item, "Noise Elimination" item, "BS Online" item,
The “Auto-set” item, the “Preset” item and the “Line input” item are displayed, and these items are changed to steps SP62, SP63, SP64, SP65, SP66, SP67, SP
By clicking at 68 or SP69, the operating conditions of each part of the system can be set. When the setting processing is completed, the CPU 8 ends the system setting processing loop and proceeds to the above-mentioned step SP10.

On the other hand, when the CPU 8 clicks the “Preference setting” item in step SP71, the “screen display” item, “management database” item, “user set” item, “character” item, and “timer reservation” item are displayed on the display screen. "item,
The "user level" item, the "message" item and the "voice" item are displayed on the display screen, and these items are step SP72, SP73, SP74, SP75, SP76, SP77, SP, respectively.
When clicked in step 78 or SP79, the CPU 8 executes the processing of each item, and when the processing is completed, proceeds to step SP10 described above.

Further, in the initial command standby state, when the user clicks the “timer reservation” item in the subsequent step SP81, the CPU 8 displays the “registration” item, the “change” item, and the “inquiry” item on the display screen, and the user Step SP82, SP83
Alternatively, when each item is clicked in SP84, a "calendar reservation table" item, a "one week reservation table" item, and a "one day reservation table" item are displayed on the display screen. Subsequently, when one of them is designated by the user, the CPU 8 executes steps SP85 and SP85.
At 86 or SP87, a calendar reservation table, a one-week reservation table, or a one-day reservation table is displayed, and a program is reserved using the reservation table.

When the CPU 8 finishes the processing of the timer reservation processing loop, it proceeds to the above-mentioned step SP10.

By executing the input information processing program RT0 in FIG. 7 in this way, the CPU 8 can reliably control the video tape recorder main body 3 based on the input data input by the user.

(G5) Recording of program start address When the control management data processing CPU 8 records one or a plurality of programs P1, P2, P3 ... on the video tape 36, the recording start point of each program is set to the program start from the tape top. The data represented as the address value is recorded in the start address item B1 of the program information D _PRX (FIG. 6), whereby the respective programs on the recorded video tape 36 are reproduced or re-recorded thereafter. The system can confirm the recording position of the program without running the tape to the recording position.

First, when the user operates the remote control controller 6, the control management data processing CPU 8 outputs the data of each item of the management data D _AV (FIG. 4) as input / output information S4 via the remote control transceiver 7. when you enter, stores it in the register 44, then for example a video cassette 35 and the control management data processing CPU8 becomes management data recording mode when it is Ijiekuto is write management data management data D _AV in the register 44 The data is transferred to the image recording encoder 51 as S25, and the image recording encoder 51 converts the data into a data video signal S42 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 manner as the recorded video signal S1 and passes through a video electromagnetic conversion circuit forming the electromagnetic conversion circuit 33 and a video head (recording / reproduction head) forming the magnetic head 34. A signal corresponding to one field of video signal is recorded on the video recording tracks TA and TB (FIG. 3) of the video tape 36.

Thus, on the video tape 36, for example, the management database video track recording area F _AVV
(FIG. 3) is formed, and the management data video signal _VDAV is recorded in the management database video track recording area _FAVV as shown in FIG. 12 (B).

During this recording operation, the control management data processing CPU 8
The mark recording data is transferred as the control signal recording data S44 to the recording encoder / decoder 54, and the CTL
The recording encoder / decoder 5 converts this into a data control signal S46, and sequentially passes through a control signal electromagnetic conversion circuit constituting the electromagnetic conversion circuit 33 and a control head constituting the magnetic head 34 to record a control signal on the video tape 36. Recording start point mark signal MK on TCT
Recorded as _OS (Fig. 12 (C)).

Thereafter control management data processing CPU8 records the control signal CT ₀ to the control signal recording track TCT by transferring the control signal as the control signal recording data S44.

When the control management data processing CPU 8 enters the program recording mode, the programs P1, P2, P3,... Are sequentially stored in the video recording tracks TA and TB in the video signal recording area F _VD (FIG. 3) following the management database video track recording area F _AVV . … Program video signal
At the same time as recording VD _P1 , VD _P2 , VD _P3 (FIG. 12 (B)), the corresponding program audio signals AD _P1 , AD _P2 , AD _P3 .
… Is recorded on the audio recording tracks CH1 and CH2 (No. 12).
(A)) and control signals CT _P1 , CT _P2 , CT _P3
.. Are recorded in the control signal recording track TCT (FIG. 12 (C)).

For control management data processing in such a program recording mode
The CPU 8 supplies the CTL recording encoder / decoder 54 with the mark signal data as the control signal recording data S44 at the recording start point timing of the program video signals VD _P1 , VD _P2 , VD _P3.
MK _P1S , MK _P2S , MK _P3S ... (FIG. 12 (C)) are recorded.

In the case of this embodiment, the mark signals MK _OS , MK _P1S , MK _P2S , MK
_P3S ... Each is a tape position address value from the tape top reference point of the video tape 36. The tape position address value is, for example, a value of a tape counter circuit provided in the video tape recorder main body 3 for mechanism control.
It is obtained by transferring to the control management data processing CPU 8 via the CPU 11.

In the above configuration, when the recorded video cassette 35 is loaded into the video tape recorder main body 3, the control management data processing CPU 8 enters the management database playback mode while communicating with the mechanism control CPU 11, and enters the management database playback mode.
Management database video tiger poke recording region F _AVV magnetically pickup data video signal from the head 34 of the electromagnetic conversion circuit 33, reproducing circuit 37, reproducing switching circuit 38 is read out via the image recording decoder 52 and writes this to the register 44 .

Thus register 44 management data D _AV (FIG. 4) is held as the management data of the video tape 36 two closed, the program information block D _PR each being videotaped 36 programs P1, P2, Program information D about P3 ……
_PRX (FIG. 6) is retained.

Thus, the program is _{added to} the start address item B1 of each program information D _PRX.
Recording start point of P1, P2, P3 …… MK _P1S , MK _P2S , MK _P3S ……
Of the video tape 36 can be centrally managed in the register 44 as an address representing the position on the video tape 36 from the tape top reference position.

Therefore, the user must input the start address item of each program information D _PRX.
By checking the contents of B1, it is possible to easily know the recording position of the program currently recorded on the video tape 36 without performing a complicated operation such as fast-forwarding the video tape 36 and running at the playback speed. This makes it possible to easily access each program.

(G6) Rewriting of Recorded Program The control management data processing CPU 8 includes a plurality of programs P1, P recorded on the video recording tracks TA, TB of the video tape 36.
When a new program is recorded only in an area where a predetermined program is recorded in P2,..., A second control head 34A, an erasing head 34B, and a recording / reproducing head (video head) shown in FIG. 34C and first control head 34D
To record a new program.

For example, when a new program is to be recorded in the recording area of the second recorded program P2 (FIG. 12), the control management data processing CPU 8 first sends the second
A command to search for the recording start point mark signal MK _P2S of the program P2 is transmitted via the bus 10.

Upon receiving the command, the mechanism control CPU 11 sends a control signal S7 for instructing fast-forward or rewind to the video tape driving device 57, thereby causing the video tape 36 to fast-forward or rewind.

At this time, the control management data processing CPU 8 transmits control signals read out via the first control head 34D to the recording / reproducing circuits 33B and C provided in the electromagnetic conversion circuit 33.
If the input control signal is a recording start point mark signal via the TL recording encoder / decoder 54, the control signal is sent to the mechanism control mechanism via the bus 10.
Send to CPU11.

The mechanism control CPU 11 previously outputs a recording start point mark signal MK _P2S corresponding to the second program to the control management data processing CPU.
By storing this from the input from 8, it is determined whether or not the recording start point mark signal input in the search operation is the pre-stored recording start point mark signal MK _P2S. Indicates that the first control head 34D has reached the recording start area of the second program P2.
The CPU 11 stops the running of the video tape 36 and sends a signal indicating that the search operation has ended to the control management data processing CPU 8.

Accordingly, the control management data processing CPU 8 executes the recording operation of the new program at this time, and the second operation is performed by the erasing head 34B.
Of the video tape 36 via the recording circuit 32, the switch circuit 33C, and the recording / reproducing head 34C provided on the rotating drum 3A. The recording is started from the head position of the recording area VD _P2 , and the control management data processing CPU 8 releases new control signal recording data 44 via the CTL recording encoder 54, the recording / reproducing circuit 33B and the first control head 34D. The recording is started in the control signal recording track TCT in the area of the second program P2 as a proper control signal.

At this time, a new audio signal is recorded on the audio recording tracks CH1 and CH2 via an audio head (not shown).

Here, the second control head 34A is the erase head 34B.
Provided on the upstream side in the running direction a of the video tape 36, the control management data processing CPU 8 detects the control signal and the recording start point mark signal before being erased by the erasing head 34B. be able to.

Accordingly, at this time, the control management data processing CPU 8 transmits the control signal read out via the second control head 34A to the control signal reproduction data via the reproduction circuit 33A provided in the electromagnetic conversion circuit 33 and the CTL reproduction decoder 55. It is input as S50, and waits for the input of the third recording start point mark signal MK _P3S recorded at the head position of the program area of the third program P3 following the end of the area of the second program P2. .

Eventually, when the third recording start mark signal MK _P3S is input, the control management data processing CPU 8 becomes the mechanism control CPU 1.
1 to terminate the recording operation by instructing the recording operation to end, and even when the length of the program to be newly recorded is longer than the area of the second program P2, the second program P2
The new program can be prevented from being recorded in the area of the third program P3 beyond the area of.

Thus, by reading the third recording start point mark signal MK _P3S via the second control head 34A,
Before erasing the third program P3 which should not be erased, the recording operation can be surely stopped, so that a new program is recorded only in the area of the second program P2 which may be erased. Can be.

After such recording a new program, after the control management data processing CPU8 is that rewritten in accordance with the management data D _AV stored in the register 44 to the rewriting operation of the program,
Rewind the video tape 36 and rewrite the program information D _PRX in the management data recording area provided in the tape top part,
The program rewriting operation ends.

Thus, the second control head 34A is provided upstream of the erasing head 34B in the running direction a of the video tape 36, and the recording start point mark signal is read from the video tape 36 during the recording operation. During operation, the area currently being recorded can always be monitored, so that the program can be reliably recorded only in a predetermined area.

(G7) Other Embodiments (1) In the above embodiment, the video recording track is used.
As described above, the management data D _AV is recorded in TA and TB, and the mark signal indicating the recording start point of each program is recorded in the control signal recording track TCT.
Instead, the management data D _{AV is transferred} to the audio recording track C.
It may be recorded on the tape top portion of H1, CH2 or the control signal recording track TCT.

The mark signal is recorded on the control signal recording track TCT.
Audio recording tracks CH1 and C
It may be recorded in the H2 or the video recording tracks TA and TB.

(2) In the above embodiment, the case where the present invention is applied to a recording / reproducing apparatus having a recording / reproducing head on a rotating drum has been described. The present invention can be applied to a recording / reproducing apparatus for reproducing.

(3) In the above-described embodiment, the management data D _AV is configured so that the volume information block D _VM and the program information block D _PR are written in that order from the head position of the recording track. Various changes may be made, such as changing the order of the arrangement or, if necessary, mixing the pieces in a finely divided manner.

(4) In the above-described embodiment, the case where the present invention is applied to a video tape recorder has been described. Instead, for example, a recording / reproducing device for recording an audio signal such as a DAT (digital audio taperecorder). The present invention can be applied to various other recording / reproducing devices such as devices.

As described above, according to the present invention, the first control signal detection head is provided at a position downstream of the erase head with respect to the running direction of the tape-shaped recording medium, and the second control signal detection head is provided at the upstream side. By providing the control signal detection head, a new program can be reliably re-recorded only in the recording area of the program to be re-recorded on the tape-shaped recording medium.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the overall structure of a video tape recorder according to the present invention, FIG. 2 is a block diagram showing its functional blocks, FIG. 3 is a schematic diagram showing a recording format on a video tape, and FIGS. FIG. 6 is a schematic diagram and table showing the configuration of the management database, FIG. 7 is a flowchart showing the input information processing procedure of the video tape recorder, and FIGS. 8 and 9 are flowcharts showing the processing procedure of the management database. FIG. 10 is a front view showing the structure of the remote control controller, FIG. 11 is a diagram showing the structure of the word designation item list, FIG. 12 is a schematic diagram showing the format of the start address, and FIG. FIG. 6 is a block diagram for explaining a rewriting operation of a recorded program. 1. 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, 32 ... Recording circuit, 33 ...
Electromagnetic conversion circuit, 34A ... second control head, 34B
...... Erase head, 34C ... Head for recording and reproduction, 34D ... First control head, 35 ... Video cassette, 36 ...
... Video tape, 37 ... Reproduction circuit, 51, 52 ... Image recording encoder, 53 ... Sound recording encoder / decoder, 54 ... CTL recording encoder / decoder, 55 ... CTL
Decoder for reproduction.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G11B 15/087 G11B 27/02-27/029

Claims (1)

(57) [Claims] 1. One or a plurality of programs are sequentially recorded on a tape-shaped recording medium along the running direction, and position information indicating a recording position of the recorded program is written along the running direction. The program and the position information recorded on the tape-shaped recording medium traveling in the traveling direction in the recording mode are recorded in a control signal recording track formed on the tape-shaped recording medium. A recording / reproducing apparatus for recording a new program and position information on the tape-shaped recording medium by using a recording head after erasing by an erasing head, wherein the apparatus is disposed at a position downstream of the erasing head with respect to the running direction. In the search mode, a first control signal detecting head for detecting the position information of each program recorded in the control signal recording track is used. A head for detecting a second control signal which is located upstream of the erasing head with respect to the running direction and detects position information of each program recorded in the control signal recording track in the recording mode. The search mode is terminated when the position information detected from the first control signal detection head coincides with the position information of the target program to be searched in the search mode; When the second control signal detecting head detects the next position information, the recording mode is terminated, whereby the position information from the target program to the next position information in the tape-shaped recording medium is obtained. A recording / reproducing apparatus comprising: a control unit for recording the new program in a portion between the two.