JPS6228990A - Magnetic tape memory device - Google Patents

Abstract

PURPOSE:To grasp the contents of many individual data in a magnetic tape and to select objected data by displaying the content of the magnetic tape in reproducing, using the magnetic tape having plural individual data storage parts and index storage parts. CONSTITUTION:Against to the magnetic tape having plural individual data storage parts and index storage parts for index data including the information regarding the data name, the data start position and the data completion position of each individual data, a deck mechanism 1 which includes a data reproducing mechanism, a tape supplying mechanism and a travelling position detection mechanism is connected to a control circuit 6. The control circuit 6 reads the data from the index storage part on the tape by the reproducing mechanism in a reproducing time and displays it on a CRT11, and selects the individual data by a keyboard 9 based upon the displayed data, and supplies the tape by the tape supplying mechanism, detecting the travelling position of the tape by the position detection mechanism, to the start position of the data, and reproduces the individual data from the start position of the selected individual data by the reproducing mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape storage device. Magnetic tape record of the present invention 4. ! The gW can be used, for example, in an audio cassette tape recording device, and facilitates the selection of songs recorded in such a cassette tape recording device.

[Conventional technology]

Conventionally, a song cue mechanism has been known as a method for selecting individual data stored in a magnetic tape recording device, such as a method for knowing and selecting a song recorded on a cassette tape using an audio tape recording device. This cue mechanism sequentially cues the cue of the songs on the cassette tape using cue indicators recorded at the beginning of the song, listens to the song content at the beginning, determines the song name, and selects a song. ing.

[Problem that the invention seeks to solve]

In the case of the above-mentioned cueing mechanism, since the cueing is performed sequentially each time, there is a possibility that many other songs will be cued before the desired song is cued, and it takes time to select a song. There is a problem that it takes a lot of time.

Therefore, an object of the present invention is to provide a magnetic tape storage device that allows the contents of a large number of individual data stored on a magnetic tape to be known at a glance, and also allows the user to easily select the desired individual data. It's about doing.

[Means and operations for solving the problem] In order to solve the above-mentioned problem, a magnetic tape storage device as one form of the present invention includes a plurality of individual data storage sections and each individual data storage section. A magnetic tape as a storage medium having an index storage section for storing index data including data name, data start position and end position information, a reproducing mechanism for reproducing data stored on the magnetic tape, and fast forwarding of the magnetic tape. and a tape feeding mechanism for rewinding, a position detection mechanism for detecting the running position of the magnetic tape, input means for inputting information regarding individual data, a display for displaying the index data, and a control circuit.

The control circuit reads index data from the index storage section of the magnetic tape using the playback mechanism and displays it on the display during playback, and selects individual data using the input means based on the displayed index data;
The tape feed mechanism C42 feeds the magnetic tape to the start position of the selected individual data while detecting the tape running position with the position detection mechanism, and moves the magnetic tape from the start position of the selected (l+1 separate data) Individual data is replayed by the replay mechanism.
t control.

Further, a magnetic tape storage device according to another embodiment of the present invention includes a plurality of individual data storage units and an index storage unit that stores index data including data names, data start positions, and data end position information of each individual data. a magnetic tape as a storage medium, a recording/reproducing mechanism for recording and reproducing data stored on the magnetic tape; a tape feed mechanism for fast forwarding and rewinding the magnetic tape; It is equipped with a position detection mechanism for detection, an input means for inputting information regarding individual data, a display for displaying the Intelnox data, and a control circuit.

During playback, the control circuit reads index data from the index storage section of the n-stape using the recording/playback mechanism 12 and displays it on the display, and causes the input means to input individual data based on the displayed index data. j
The recording and playback mechanism replays the individual data from the start position of the selected individual data, and when recording, the recording and playback mechanism reproduces the final individual data that has already been recorded based on the index data read from the index storage unit. The end position is detected, the magnetic tape is sent to the end position by the tape feeding mechanism while the tape running position is detected by the position detection mechanism, and the end (
The device is configured to control recording of new individual data after the device and writing the start and end positions of the recorded new individual data into the index storage unit along with the data name input by the input means. .

〔Example〕

Embodiments of the magnetic tape storage device of the present invention will be described below with reference to the drawings.

FIG. 1 shows a magnetic tape storage device as an embodiment of the present invention, in which the magnetic tape storage device of the invention is applied to an audio cassette tape deck.

In Fig. 1, 1 is a cassette tape removal mechanism, 2R
, 21 are heads, 3R, 3L are equalizer amplifiers,
4R and 4L are amplifiers, and 5R and 5L are speakers. The cassette tape release mechanism 1 is a mechanical system for driving the cassette tape, and includes a feeding mechanism for recording and playing back the cassette tape, a feeding mechanism for fast forwarding and rewinding, and detecting the running position of the cassette tape. It includes a counter mechanism for position detection, etc. The counter mechanism is a mechanism that detects the rotation of the reel motor using a Hall element and sends out Hall pulses according to the number of rotations.

6 is a digital control circuit. Digital control circuit 6
has a CR7 display 11 for displaying the contents of the tape.
, an FSX modulation circuit 7 that performs FM modulation for writing on the tape, demodulates the FM signal written on the tape and outputs N
An F''SK demodulation circuit 8, a keyboard 9, etc., which converts the signal into an RZ signal, are connected.The digital control circuit 6 is a central processing unit (CP1.J) 61 for controlling the deck.
, CI) [,, J6] Serial/parallel input/output capo for converting the parallel signal recorded on the tape into the NRZ serial signal, or converting the NRZ serial signal into a discrete L/raw signal. Input control signals for Toro 2, deck type reel motor, head plunger, loading motor, etc. Zero parallel input/output capo) 63, #
Parallel input/output capotro 4 for reading JI-made switches, ROM 65 for storing programs for control 1,
A CRT display control unit 66 that sequentially sends the information written in the RAM 67 to the parallel/serial converter 69
, a video RAM 67 for reading data recorded on a tape and displaying it on the CR'r display 11, a parallel/serial converter 68, and the like.

An FSK modulation circuit 7 and an FSK demodulation circuit 8 are connected to the serial/parallel output capotroro 2. The parallel input/output capotro 3 inputs/outputs Hall pulse signals for reel motor rotation detection, reel motor control signals, head plunger control signals, and loading motor control signals to and from the cassette tape release mechanism 1, and also performs recording. A reproduction switching signal is output to switches IOR and IOL. Input signals from the keyboard 9 and contact/I signals for playback stop, recording, fast forwarding, rewinding, etc. are input to the parallel input/output capotro 4.

The operation of the apparatus of FIG. 1 will be described below with reference to FIGS. 2-6.

FIG. 2 shows the distribution of data recorded on a cassette tape by the embodiment shown in FIG. The songs are recorded sequentially from the first song to the last song. Figure 3 shows the index part in more detail, and the beginning part is marked with a head' symbol HD.
R is recorded, and then the title, start position count value, and end position of the songs that are sequentially recorded [values are recorded for each song, and the end part is recorded with the enl code ENI').

In this way, the embodiment device records the name of the recorded song, start and end position count values, etc. at the beginning of the cassette tape as index data, and reads out this index data at 11:4-7 and displays it on the CRT display 11. The contents are displayed on the screen, and the desired song can be selected using the keyboard 9. Figure 4 shows CR'F display 1
1, in which the song title, start position count value, and end position caraton value are displayed for each side.

Next, referring to FIG. 5 and FIG.
The playback operation will be explained in detail. 5 and 6 are flowcharts of the control program executed by the digital control circuit 6 of the embodiment device, and FIG. Figure 6 shows the recording operation.

First, the reproduction operation will be explained with reference to FIG.

It is assumed that index data and songs have already been recorded on the cassette tape in the manner shown in FIGS. 2 and 3. When the playback key is pressed (step Sl), the deck mechanism 1 performs rewinding operation (step S2), detects the starting end of the cassette tape based on the presence or absence of a hole pulse from the counter mechanism, and stops rewinding (step S3). do. Next, the deck mechanism 1 performs a reproducing operation (step S4), reads the data at the start end (step S5), and searches for the head code (TDR) in the index section (step S6). If the head code HDR is not read even after a certain period of time has elapsed (step S7), it can be determined that index data is not recorded on the cassette tape, and in that case, an error message is displayed on the CRT display 11. (Step S8), and tape playback is stopped (Step S9).

If the head code HDR is detected, the title, start and end position count value data of the following song is read (step 5ll), and the data is stored in the RAM 67 (step 512), and this operation is followed by the end code END being read. The process continues until (step 513). When all of the Intel Nox data is read, the playback operation for reading the index data is stopped (step 514).
, CRT'' display controller 66 reads out the index data from the RAM 67 and displays the fourth index data on the CRT display 11.
It is displayed in the manner shown in the figure (step 515).

Based on the index information on the CRT display 11, the user selects the number of the desired song using the keyboard 9 (step 316). If the selected song number does not contain a song title, it can be determined that no song has been recorded for the corresponding song number, so an error message is displayed (step S17.1).
8) Wait for input of the next song number. If the selected song number has a song name, the start position count value of that song is stored in the RAM (Step S9), and the cassette tape is fast-forwarded toward the start position (Step 520). When it is detected that the cassette tape has been fed to the starting position by the ball pulse from the count a mechanism (step 521), fast forwarding is stopped at that position, and
Start the replay operation of the selected song (step 5)
22).

Next, the recording operation will be explained with reference to FIG.

When the recording key is pressed (step 531), the cassette tape is rewound (step 532), and the beginning of the tape is detected based on the presence or absence of a hole pulse (step 533), and the rewinding operation is stopped. Then, a display requesting input of the title of the recorded song is displayed on the CRT display 11 (step 534).

In response, the operator inputs the name of the recorded song using the keyboard 9 (step 535), and the song name is temporarily stored in the RAM (step 536).

Subsequently, a tape rewrite operation is performed to read the index data (step 537), and the head code HDR of the index portion is detected (step 838). If the head code IfDR is not detected even after a certain period of time has passed (step 539), it can be determined that the cassette tape being used is a new one that has not yet been recorded. To stop the operation, step 540), set the target position counter mechanism of the song search to the start position count value of the first song 15) (step 541), and fast-forward the tape toward this (☆ position) (step 551). .

On the other hand, if the belly button)-code HDR is detected, the following song data is read and stored in the RAM (step 543).
), this operation is continued until the end code END is read (step 544), and when the end code IEND is detected, the playback operation for reading the index data is stopped (step 545). Then, the target position count value of the song search is set to the end position count value of the last song in the index (step 546), and the tape is fast-forwarded (step 551).

When it is detected that the tape has been fed to the target position by the ball pulse (step 552), fast forwarding of the tape is stopped at that position and the process moves to recording the song (step 553). When the recording of the song is finished (step 554)
), the start position and end of the recorded song detected by the counter mechanism are stored in the RAM.

Next, step 556 of rewinding the tape to the starting position, S
57.858), send the length tape in the tape recording state (step S59.560), step S43
In step S3, the index data stored in the RAM is
5. Add the song name, start and end position count values of the newly recorded song stored in the RAM in S55 and write it in the tape index section (step 560), and end the recording operation (step 561). Note that the reason why the entire index section is rewritten every time a new song is recorded is that the operation of simply adding data for a new recorded song after the last song data in the index section is due to the mechanical accuracy of the deck mechanism. This is because it cannot necessarily be performed accurately.

Various modifications are possible in carrying out the invention. For example, FIG. 7 shows, as a modified example, a flowchart of a control program for recording songs from an LP record onto a cassette tape at one time. In implementing this modification, it is necessary to add a level detector for detecting the output level of reproduced sound to the circuit shown in FIG. That is, in the circuit of FIG. 1, equalizer amplifier 3R or 3
A level detector for detecting the output of L is added, and the detection output of the level detector is configured to be input to the digital control circuit 6 via an input/output port.

This modification will be explained below with reference to the flowchart in FIG.

When the recording key is pressed (step 570), the tape is rewound to the starting position (step 371, S72),
An input request is displayed on the RT display 11 (step 573). At this time, song number 1, 1 of the first song input:
r I J (step 574), and then input the song title from the keyboard 9 (step 575).
, this song title is stored in the memory portion of the song number [-11 in the RAM (step 876). Thereafter, the song number is updated by adding 1 (step 577). This operation is repeated for the number of songs in the LP record', and when the names of all songs have been registered (step 378), the start position count value of the first song is set as the fast-forward target position (step 579), and the tape is fast-forwarded to that position. (Step S80.581
).

Next, the song number in the storage area on the RAM in which the start and end position count values of the recorded song are to be registered is set to +'I-1 (step 582), and recording of the first song is started.

The boundary between songs can be determined by the presence or absence of the output signal from the level detector mentioned above. Therefore, since there is no output signal from the level detector, it is possible to first detect the start position of the first song (step 584), store this count value in the storage area of the song number [-11 in RAM (step 585), and then level When the output signal of the detector disappears, the end position of the first song is detected (step 886) and the song number is "1".
The data is stored in the ta portion of (step 587).

If recording of all songs has not been completed, the song number is incremented by one and updated (step 589), steps 384 to 384.
By repeating S87, the detector 10 detects the start and end position count values of the song number [2-1.

Hereafter, this operation is performed for all songs. As a result, ■, P
Records can be recorded in one recording operation.

In addition, in 1 and 2, we have explained that the search target is a musical piece, but of course this is limited to music.
Instead, for example, a large number of programs such as personal computer programs are written on magnetic tape. It is clear that the present invention is also applicable to the case of 1).

〔Effect of the invention〕

According to the present invention, a list of a large number of music songs or computer programs etc. recorded on a magnetic tape can be transferred to a CRT.
Since the content can be displayed on the display, the contents can be known with -L1, and the desired song etc. can be selected with node i11, the operability in reproducing the magnetic tape storage device can be greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a magnetic tape storage device as an embodiment of the present invention, FIG. 2 is a diagram showing the distribution of recording portions of each data on a cassette tape-1, and FIG. FIG. 3 is a diagram showing the configuration of an index section in detail. Figure 4 shows CR
FIGS. 5 and 6 are diagrams showing how index information is displayed on the T-display L-, respectively. FIGS. is a flowchart of a control program according to a modification of the present invention. 1-Deck mechanism, 2-Heso F, 3-Equalizer amplifier, 4-Amplifier speaker, 6-Digital control circuit, 7-FSX modulation circuit, 8-FSK demodulation circuit, 9-Keyboard, 1l-CRT display.

Claims (1)

[Claims] 1. A magnetic tape as a storage medium having a plurality of individual data storage units and an index storage unit that stores index data including data name, data start position, and data end position information of each individual data. , a reproducing mechanism for reproducing data stored on the magnetic tape, a tape feeding mechanism for fast forwarding and rewinding the magnetic tape, a position detection mechanism for detecting the running position of the magnetic tape, and an input means for inputting information regarding individual data. , a display for displaying the index data, and a control circuit, wherein the control circuit reads the index data from the index storage section of the magnetic tape by the playback mechanism and displays it on the display during playback, Individual data is selected by the input means based on the displayed index data, and the magnetic tape is sent by the tape feeding mechanism to the starting position of the selected individual data while the tape running position is detected by the position detection mechanism. , a magnetic tape storage device configured to control reproduction of individual data by the reproduction mechanism from a starting position of the selected individual data. 2. A magnetic tape as a storage medium having a plurality of individual data storage units and an index storage unit that stores index data including data name, data start position, and end position information of each individual data, and storage data on the magnetic tape. a recording and reproducing mechanism for recording and reproducing the magnetic tape; a tape feeding mechanism for fast forwarding and rewinding the magnetic tape; a position detection mechanism for detecting the running position of the magnetic tape; an input means for inputting information regarding individual data; and the index data. and a control circuit, wherein during playback, the control circuit reads index data from the index storage section of the magnetic tape by the recording/playback mechanism, displays it on the display, and displays the index data on the display. Select individual data by the input means based on the index data, and send the magnetic tape by the tape feeding mechanism to the starting position of the selected individual data while detecting the tape running position by the position detection mechanism, and select the data. The recording and playback mechanism plays back the individual data from the start position of the individual data that has been recorded, and during recording, the recording and playback mechanism detects the end position of the final individual data that has already been recorded based on the index data read from the index storage unit. Then, the magnetic tape is sent to the end position by the tape feeding mechanism while the tape running position is detected by the position detection mechanism, new individual data is recorded after the end position by the recording/playback mechanism, and the recorded data is recorded. A magnetic tape storage device configured to perform control to write the start and end positions of new individual data together with the data name input by the input means into the index storage unit. 3. The magnetic tape storage device according to claim 2, wherein the individual data is a musical piece. 4. The magnetic tape storage device according to claim 2, wherein the individual data is computer program data. 5. The magnetic tape storage device according to claim 2, wherein the magnetic tape is a cassette tape.