JPS6098542A - Retrieving device of cassette tape information for vtr - Google Patents

Abstract

PURPOSE:To attain quick program searching at the time of picture recording and to prevent a recorded part from being recorded again by writing tape information obtained at the picture recording in an external memory at the unloading of a cassette, writing the information in an internal memory at the loading of the cassette, and on the basis of the information, executing the program searching of an unrecored part at the picture recording and the program searching of a reproducing program at the reproducing time automatically. CONSTITUTION:A head 6 for writing/reading data in/from an external memory 4 fitted to a tape 1 is arranged in a cassette tape storing part. A writing/reading circuit 15 in a retrieval control unit 9 reads the tape information on the basis of the mechanical movement or the like of the external memory 4 to the head 6 at the insertion of the tape 1 and the read information is written in an internal memory 11 through a microcomputer 10. Since there is not tape information in a discrimination block 24 when the tape 1 is not yet used, the program goes to a block 25 to preset the value of an up/down counter 12 to zero. Then, a discrimination block 26 monitors picture recording by a start/stop switch 18 to execute picture recording. A discrimination block 31 monitors the unloading of the cassette to unload the cassette.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to a V
1-Relating to a cassette tape information retrieval device for R.

(Background of the invention) Conventionally, V1-R using a ';/Jt table.
Now, if several types of programs are recorded on the tape, you can perform fast forward 'X'J rewind operations on the tape based on the recording records to match the tape counter value to the position of the desired program. I was cuing up.

However, in conventional cueing operations like this, it is necessary to keep up with the VTR operation until the cue can be found, and when cueing multiple programs at random, one program It is necessary to fast-forward or rewind the tape each time playback is finished, and in addition, the beginning operation must be performed only after the tape has been completely rewound and the tape counter has been reset to zero. There was the complexity of not having to do anything.

(Object of the Invention) The present invention has been developed in view of the above-mentioned conventional problems. 1. To provide a Vl-1 missing cassette tape information retrieval system with excellent operability that allows for cueing.

(Summary of the Invention) In order to achieve this object, the present invention provides external storage means for storing tape information on the outer surface of the case of Karen 1 to 1. Tape information including the stored program name, program start position, and progera L\end (f/buy) is written in 6 by the writing means when the force set is taken out, including the tape position when the power set is taken out/stored in υ. When the cassette is inserted, the tape information stored in the external storage means is read by the reading means and stored in the internal storage means. When the cassette is inserted, the value of the tape position at the time of cassette ejection in the tape information is read out from the tape information. A position detection means using a counter to detect the position is preset, and then, if the recording mode is specified, the tape is rotated to the program end position of the final program in the tape information to perform recording cue control. , in the playback mode, the tape is rotated to the program start position of one or more designated programs to locate the beginning of playback.

(Embodiment) FIG. 1 is a block diagram showing an embodiment of the present invention using a video recording only VTR as an example.

First, to explain the configuration, 1 is a 7J set tape,
A magnetic tape 3 wound into a reel is built into the case 2, and an external memory 4 serving as an external recording TFI medium for recording tape information is arranged on the outer surface of the case 2 of the cassette tape 1. ing.

That is, as shown in the explanatory diagram of FIG.
As this external memory 4, a magnetic tape etc. cut into lengths corresponding to the thickness of the case 2 is used. The external memory 4 can be obtained by pasting magnetic tape with sticky tape or the like.

Referring to Figure 1 again, Carre 1 to Tape 1 (Ma VT
A head 6 for reading and writing tape information is positioned relative to an external memory 4 installed in the case 2 when inserted into the R device, and a head 6 for reading and writing video information to a magnetic chip 73 is located. video head (rotating head) 7
is located.

8 is a reel rotation detection section that generates a number of pulse signals corresponding to the number of reel rotations of the cassette tape 1; i' is determined by detecting the tape position.

9 is a search control unit that performs automatic cueing during recording, and a microcomputer 10 is used as a control means.
is built in and connected to the micro combi coater 10.
AM is used as internal memory 11. Note that various types of internal memory 11 can be used (for example, D
RAM, SRΔM, bubble memory, etc.). Furthermore, a plurality of the same kind or a plurality of different kinds may be provided.

Here, the form of use of the memory used for the search zero of the present invention is not limited at all. That is, when the internal memory 11 is composed of one memory, a dedicated address for searching according to the present invention may be provided in the address of the memory, or it may be used without address control; If 11rN is formed by a plurality of memories, a plurality of memories may be used in addition to the above. Further, an addition/subtraction counter 12 for counting detection pulses from the reel rotation detection section 8 is provided as a position detection means for detecting the tape position.

This addition/subtraction counter 12 has a microcomputer 10.
Preset signals 14 are given to adjust the tape position obtained from the tape information at the time of inserting the cassette, such as an adjustment 0 control signal 13 that determines addition or reduction of the valve. The reel rotation detection unit 8J: Adds the detection pulse Ii' in the addition/subtraction direction determined by the adjustment valve control signal with the preset value as the initial value.
? 1'J, 1 performs the reduction of strenght.

Further, each of the search control units 1 to 9 is provided with a read/write circuit 15, and a head 6 for writing/reading the external memory 4 is connected to the write/read circuit 15. Write/read control signal (hereinafter referred to as
The tape information p1 is loaded into or read from the external memory 4 based on the W/R signal) 10.

Reference numeral 17 designates a keyboard through which the name of the program to be recorded, for example, the program number, is entered into the microconverter 10 of the microcomputer 9. Of course, if a keyboard 17 capable of inputting a tractor code is used, the program name can be input directly.

18 is a recording start/stop switch.

On the other hand, the output of the microcomputer 10 provided in the search control unit 9 includes a counter display section 19.
and the recording cue control section 20 are connected, and the counter display section 19
The counter value counted by the addition/subtraction counter 12, ie, the tape position, is displayed numerically. In addition, the counter display section 19 is shown in FIG.
The counter value is displayed numerically on the side of the screen. The recording cue control unit 20 controls the rotation of the drive motor 21 based on the cue control signal from the microcomputer 10, and rotates the drive motor 21 so that the counter value provides the program end position of the final program included in the tape information. 1 to perform cue control for tape 1.

It is also possible to configure the microcomputer 10 to determine the current tape position J: retape residual sound, and further calculate the remaining tape time and display it on the remaining tape time display section 19'.

FIG. 3 is an explanatory diagram showing the relationship between tape information and recording tape used in the embodiment of FIG. 1.

That is, the program P1. P2. Program P3 indicates a recorded state, and after program P3, it is in an unrecorded state.In this way, in the recorded magnetic tape 3, the counter value of the counter that detects the tape position is the same as program P1.
The start M + IJ, N (S ) - 〇1 program end value is N (1) (・', and the program P2
The start of (iQ is N(1), the end value t minus N 2),
The starting value of program 3 is N(2), and the ending value is N(3).

Therefore, the tape information includes the program N (+, <program name) indicated by Pi, P2, one 3, and the program between each program (l!0 (Il, i and 1 gram end value, The counter value when Karen 1-Dave is taken out is used.

Next, the control process when recording programs 1]1 to P3 shown in FIG. 3 is performed using flowchart I! in FIG. This will be explained with reference to

First, as shown in FIG. 2, the VTR device 5 is powered on, and then the cassette tape 1 with the external memory 4 provided on the outer surface of the case 2 is inserted into the VTR 1@5.

For such insertion operation of cassette tape 1, the fourth
The determination block 22 in the figure monitors whether or not a cassette is inserted, and when a cassette is inserted, the process advances to block 23.
Tape information stored in external memory 4 is read into internal memory 11 of search control unit 9. That is,
As shown in FIG.
- A head 6 is provided for performing one write/read,
When the external memory 4 is mechanically moved relative to the head 6 when the cassette tape 1 is inserted, or when the head 6 is mechanically moved after the cassette tape 1 is set, the search controller 1 to the roll unit 9 are written. /Read circuit 15 reads tape information and writes it to internal memory 11 via microcomputer 10.

Here, if cassette tape 1 is an unused tape,
Since the tape information is not fqed and there is no tape information in the determination 10 check 24, 3f! is sent to the block 25! :/υ presets the chain of addition/subtraction counter 12 to zero. Next, J3 is input to the determination block 26 (start/end switch 18
When the recording operation is carried out at J3 every other time after the recording operation '1', a recording process is executed as shown in the subroutine of FIG.

This recording process begins with program P1 in block 28.
The counter value N(S) of the addition/subtraction frame counter 12 when recording is started is written into the internal memory 11 under program control of the microcomputer 10 based on the recording operation of the start/stop switch 1B. Since the name JO1P1 is given, the start counter value N<S) is written into the internal memory 11 in association with program NO0[)1. Next, in the determination block 29, it is monitored whether or not the recording has ended.
When the recording is completed, the process proceeds to block 30, where the counter value N(1) at the time of completion is written into the internal counter 11 by 1!1, and the process returns to FIG.

Similarly, program P2. P3 is recorded, and each program P2. Program No. to P3@, P2
．． P3, the program start counter value a3J: and the program end counter value are written into the internal memory 11. In this way, when the recording end operation is performed using the start/end switch 18 after recording the programs P1 to P3, the judgment block 31 monitors the removal of the force sensor 1, and when the operation to remove the force sensor 1 is performed, A cassette ejecting process shown as a subroutine in FIG. 6 is executed. That is,
In block 32, the tape information stored in the internal memory 11 is transferred to the cassette tape 1 using the head 6 under the control of the write/read circuit 15 by the microcomputer 10.
write to the external memory 4 of.

When the external memory 4 is filled in, a cassette setup is performed to eject the cassette tape, and the data stored in the internal memory 11 is erased in block 34, and the process returns to B in FIG. 4 to wait for the next cassette to be inserted. state.

Next, as shown in FIG.
The following describes the recording cue control when attempting to perform new recording using a tape on which a previous recording has been recorded. In addition, program No. P1-. 1) Karen 1-Dave N after recording 3
(+)) L+, C winding 1. :The one who took out the cassette tape later.

When the tape 1 is recorded on the VTR device 5 and the Nicaret tape 1 is inserted, a block 23 is detected (the tape information read from the external media 4 provided on the cassette tape 1 to the internal media 11 is (when taking out) J counter
il'jN(P) and each B1'gram No., P1 to P3
The start and end counter values of each block 1]gram are set by 1q.

Subsequently, in the judgment block 24, it is determined that there is a 11''-night, and the process proceeds to a block 35].In the block 35, the value of the addition/subtraction counter 12 is changed to the counter value N (P) at the time of take-out from the curlet 1 to the counter value N (P). cover

In this block 35, the position of the tape of Karen 1-Dave 1 inserted into the VTR device matches the count value of the addition/subtraction counter 12 provided in the search control unit 9.

Subsequently, in block 36, recording cue control is performed. In this recording cue control, the frequency control section 20 controls the rotation of the drive motor 21 until the end counter value N(3) of the final program P3 in the tape information written in the internal memory 11 is obtained. Specifically, the end counter value N of the final program P3 in the microcomputer 10
(3) and the counter value of the addition/subtraction counter 12 are compared, and when the two match, the rotation control of the drive motor 21 is stopped.

Through the processing of blocks 35 and 36, it is possible to automatically locate the beginning of an unrecorded portion of a recorded cassette tape. The following recording process is performed in the same manner as in the case described above using an unused cassette tape.

FIG. 7 is a block diagram showing another embodiment of the present invention, and this embodiment is characterized in that it is intended for a VTR device equipped with recording and playback functions.

First, to explain the configuration, 1 is the tape 1 to the tape, 2 is the case, 3 is the magnetic tape, 4 is the external memory provided on the outer surface of the case 2 of the cassette tape 1, and t3 is the external memory 4 write/read. 7 is a video head, 8 is a reel rotation detection section, and 9 is a search control unit l-. The search controller 1 has a roll unit 9 which includes a microcomputer 10, an internal memory 11 using [△M], an addition/subtraction counter 12 that detects the tape position, and a write/read unit that controls the reading/output of the head 6. It is composed of a circuit 15.

Further, the microcomputer 10 is provided with a keyboard 17 for specifying the program number and name, a start/# end switch 18 for instructing the start/end of recording/playback, and a playback switch 46 for specifying the playback mode. , J: and a recording switch 44 for specifying the recording mode are connected to each other for input. The output of the microcomputer 10 is stored in the internal memory 1 in addition to the counter display section 19 that indicates the tape position.
The output of the microcomputer 10 is given to the program display section 42 which displays the program number or name stored in the old program No. The drive motor 2 of the cassette tape 1 is supplied to the recording/playback cue control unit 40 provided
1 is controlled to rotate.

Next, cue control during reproduction according to FIG. 7 will be explained with reference to the flowchart of FIG. 8. In the flowchart of FIG. 8, the same parts as in FIG. 4 are given the same numbers.

First, when the power is turned on to the VTR device and a cassette tape with the recording contents shown in FIG. 4, the tape information stored during recording is read out and read into the internal memory 11 of the search control unit 9, and the tape data read into this internal memory 11 includes program numbers, P1 to P3, and the start of each program. /The end counter value and the counter value, for example N (P), are obtained when the cassette is removed.

Subsequently, in the determination block 24, the tape information data is stored in the internal memory 11 (it is determined that the tape is loaded, and the process proceeds to block 35, where the adjustment is corrected). Create a preset. The tape positions of the tapes 1 to 1 inserted by the presetting of the block 35 and the value of the addition/subtraction counter 12 at 9 to the search control unit 1 match. Subsequently, a3 is entered in the determination block 50 to monitor whether or not there is a playback operation.

In this reproduction operation, one or more programs to be reproduced are inputted using the keyboard 17. In particular, when a plurality of programs are to be reproduced, a reproduction procedure is also inputted. After completing the settings for this playback blockogram, operate the playback switch 46 to select the playback mode, and select the playback mode.
The start/end switch 18 is pressed to start playback. When this reproduction start is determined in block 50, the η reproduction process shown in the subroutine of FIG. 9 is executed.

In the playback process shown in FIG. 9, it is determined in block 51 whether or not a playback program has been specified, and if no playback program has been specified, the process advances to block 52 where the current counter value,
That is, playback starts from N(P) and returns to A in FIG. 8 when the end counter value N(3) of the final program P3 is obtained.

On the other hand, in the determination block 51, a reproduction program is specified, for example, program P1. P2. When a program to sequentially reproduce P3 is specified, each time the reproduction program number is input from the 4-knee board 17, it is stored in the internal memory 11 in block 53, and the program number is stored in the internal memory 11 in determination block 54.
The input/storage of the playback program number "J" on the keyboard 17 is repeated until it is determined that the input of "J:" is completed. At blocks 53 and 54, when the reproduction program No., P1 to P3 manually/memorized using the keyboard 17 is completed, block 5
5, the first program number and Pl are set, and the tape is fast-forwarded or rewound until the start counter value N (S) of the setting program P1 stored in the internal memory 11 is obtained. At this time, since the counter value of the addition/subtraction counter 12 when the cassette is inserted is N(P), the recording/playback cue control unit 40 controls the rotation of the drive motor 21 so as to wind the cassette tape, and performs the next determination. block 57
At step d3, it is monitored whether the counter 1 of the addition/subtraction counter 12 matches the start counter value N(S) of the setting program No. P1, and when they match, the program no.

Start playing Pl. The counter value of the subtraction counter 12 is the program NO, and the end counter value N of P1 is
(1), and when they match, it is determined that the TIJ program of program No. and Pl has ended, and the process proceeds to the determination block GO, where it is determined whether all programs have finished playing. 1. At this time, program N01
1 2. Since the ILT student of P3 remains, the next playback program No. P2 is set in block 61,
Thereafter, the processing of 10 steps 51 to 60 is repeated in the same manner, and when the reproduction of the final program No. P3 is completed, the reproduction processing is completed and the program returns to B in FIG. 8.

As is clear from this kind of playback process, no matter where the cassette tape is located, the beginning of the program to be played is automatically located in the tape information based on the specification of the program to be played. It will be carried out on the basis of

Next, determination block 2 in the flowchart of FIG.
If the recording operation is determined in step 6, the recording process shown in the subroutine of FIG. 10 is executed.

In the recording process shown in FIG.
Then, it is determined in block 70 whether or not the counter value of the addition/subtraction counter 12 preset in block 25 or 35 in FIG. The current counter value and the program number specified on the keyboard 17 are written to the internal memory 11, and recording is started in block 72. When the end of recording is determined in determination block 73, the end counter value is written in the internal memory in block 74. 11 and return to A in Figure 8.

On the other hand, if the counter value of the addition/subtraction counter 12 is not zero in the determination block 70, that is, if the recorded video is being used, the process proceeds to block 75, where the end counter of the last programmer 11 stored in the internal memory 11 is determined. The value is compared with the counter value preset by Caret 1~Insertion, and recording is performed so that the counter value of the A&DQ' counter 12 matches the end counter value of the final program.
'The playback cue control section 40 controls the drive motor 21 to start the recording cue. After finishing the recording cue in block 75, the processing in blocks 71 to 771 is performed in the same way as when using an unused tape.
,.

The counter value at the start of recording and the counter value at the end of recording are written into the internal memory 11 again.

Again, Illustrate flowcharts 1 to 9 in Figure 8).
, the playback a3 and recording processing J! shown in Figure 10. After step 11 is completed, the determination block 31 determines whether to take out the cassette, and the same process as the subroutine shown in FIG. i16 is executed for taking out the cassette. That is, as shown in FIG.
- After writing to the external memory 14 of the tape, set up the cassette and erase the data in the internal memory 11 in tr:c reduction.

FIG. 11 is a block diagram showing an embodiment in which the present invention is applied to a playback-only machine, and is similar to FIG. 7 except that the recording switch 44 is not provided, so a description thereof will be omitted.

FIG. 12 is a flowchart illustrating the operation of the embodiment shown in FIG. 11, and is similar to FIG. 8 except that the recording judgment block 26 is not provided, so a description thereof will be omitted.

FIG. 13 is a flowchart showing a subroutine for taking out a cassette, which is the same as FIG. 6 except for block 32', so a description thereof will be omitted. Block 32' writes the J counter value at the time of ejecting the cassette into external memory 4. It should be noted that the subroutine for reproduction uses the same flowchart as in FIG. 9, so the explanation thereof will be omitted.

(Effects of the Invention) As explained above, according to the present invention, the tape information of the cassette tape obtained during recording is stored in the external memory provided on the outer surface of the cassette tape case when the cassette is taken out, When recording, read the tape information from the external memory installed on the tape and store it in the internal memory using lυ.Based on this tape information, when recording, it locates the beginning of the unrecorded part, -1j, and when playing back, it reads 1 Or, since the beginning of a small number of playback blocks can be automatically performed by knowing only the program specification, I
J. It is possible to quickly locate the beginning of an unrecorded part without checking it by playback, and it is possible to reliably prevent a new recording from overlapping an already recorded part. In addition, even if you are in d3 during playback, you can specify the playback program procedure to ``Nungum'' and press J5, depending on the recording type of Arp. Even if you have recorded a large number of programs, you can play them back repeatedly with a simple operation.

Furthermore, since the tape information is stored in an external memory on the computer, its handling is extremely convenient.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the present invention using a recording-only VTR as an example, Fig. 2 is an external view of the device of the invention showing a cassette ejected state, and Fig. 3 shows an example of a recording tape. Explanatory diagrams, FIG. 4 shows flowcharts 1 to 1 showing the search control according to the embodiment of FIG. 1, FIG. 5 shows the recording process under the control of FIG. FIG. 4 is a flowchart showing the cassette ejecting process in the control; FIG. 7 is a block diagram showing an embodiment of the present invention taking a recording/playback VTR as an example; FIG.
Flowchart 1 to illustrating search control according to the embodiment shown in the figure.
FIG. 9 is a flow chart p-l-1 showing the recording process under the control shown in FIG. 8. FIG. 10 is a flow chart i~ showing the recording process under the control shown in FIG.
A block diagram showing an embodiment of the present invention using R as an example,
FIG. 12 is a flowchart showing the search control according to the embodiment of FIG. 11, and FIG. 13 is a flowchart showing the file 1-extraction process in the control of FIG. 1: Carre 1~Tape 3: Magnetic tape 4: External memory 5: VTR device 6: Head 7: Video head 8: Reel rotation detection section 9: Detector 1~○ unit 1~10: Microcomputer 11: Internal Memory 12: Addition/subtraction counter 15: Write/read circuit 17: Keyboard 18 Start/stop switch 19: Counter display section 20: Recording cue control section 21: Drive motor 40: Recording/playback cue control section 42 Niprogram display section 44: Recording Switch 46 Playback Switch Patent Applicant Nippon Kogaku T Gyo Co., Ltd. Agent Patent Attorney Susumu Takeuchi/? 1 Figure 4 Spear Figure 6

Claims (3)

[Claims] (1) external storage means provided on the outer surface of the cassette tape case; position detection means for detecting the tape position of the cassette tape; program name and program start position used in recording operations;
an internal storage means for storing tape information including a program end position and a tape position when the cassette is removed; a writing means for reading the tape information from the internal storage means and writing it into the external storage means when the cassette is removed; and after the cassette is inserted. reading means for reading tape information from the external storage means and storing it in the 119 internal storage means; brisera 1 to means for presetting the detection means; and a tape end position of the final program of tape information stored in the internal storage means and a tape position n detected by the position detection means at the time of recording operation. A cassette tape information retrieval system for a VTR is characterized in that it is equipped with a recording cue means for controlling the rotation of the cassette tape so as to match the rotation of the cassette tape. (2) external storage means provided on the outer surface of the case of the cassette tape; position detection means for detecting the tape position of the cassette tape; and a program name, program start position, program end position, and program name obtained by the recording operation. J: an internal storage means for storing tape information including the tape position when the cassette is taken out; and an internal storage means for reading out the information of the 10th stage of the internal memory and storing it in the external storage means when the cassette is taken out. writing means; reading means for reading tape information from the external storage means and storing it in the internal storage means when the cassette is inserted; a means for pre-hitting the position detecting means to the value of the tape position at the time of tape removal; a specifying means for specifying a recording mode or a playback mode including a program playback order; and a recording mode is specified by the specifying means. recording cue control means for controlling the rotation of the force cellar case so that the end position of the final program outputted from the internal storage means matches the tape position detected by the position detection means when , after specifying a playback mode with the specifying means, the program start position output from the internal storage means of the selected one or more programs matches the tape position detected by the position detecting means; 1. A cassette tape information retrieval device for a VTR, comprising a playback cue control means for controlling rotation of the tape so as to rotate the tape. (3) Karen 1 - Steps on the outside of the tape case [knotted/J]
External/external capillary means, a position detecting means for detecting the tape position of the force jet tape, an internal memory means, and reading the tape position at the time of ejection into the Karen 1 from the output of the position detecting means when the cassette is ejected. 71) writing means for writing into the external storage means; and a tape containing the program name, program start position, program end position J5, and tape position at the time of ejecting the cassette, which were stored in the external storage means when inserted. reading means for reading out information and storing it in the internal memory 111 means; a preset means for setting the detection means to a preset means; a designation means for designating a playback mode that determines the playback order of the programs; and the first and second codes selected by the designation means are outputted from the internal storage means for a small number of programs. 1. A cassette tape information retrieval device for a JR VTR, comprising: a playback cue control means for controlling rotation of the tape until a program start position and a tape position obtained by the position detection means match.