JPS61156588A - Rotary head system tape recorder - Google Patents

Abstract

PURPOSE:To execute automatically reproduction in a desired sequence at the time of recording by recording plural information in accordance with an order of recorder, and on the other hand, storing separated that after which information a reservation recording area exists, in a storage means, and storing a reproducing sequence by a start track address. CONSTITUTION:When the first reservation track number TR1 is set between recording information A and B, in a data array of an index use data storing circuit 29, SA1, SA2, and EA1, EA2 become each start track address of the information A, B, and each end track address, respectively. Information D records the information A, B, and thereafter, at the time of reproduction, the reproduction is executed in order of the information A, D and, B. As for an array of a recording area on a tape 10, recording is executed in order of the information A, B. In case of a reproducing mode, a start tack address and an end track address of the information D are read out, the former and the latter are stored in a temporary storing circuit 288 and a temporary storing circuit 282, respectively, a tape feed to the start track address is executed and the information D is reproduced, and when it is ended, subsequently, an index data of the third line is read out and the information B is reproduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a rotary head tape recorder that records track addresses together with recording data on each recording track formed using a rotary magnetic head.

[Technical background of the invention]

Digital tape recorders have been developed that use rotating heads to record and reproduce audio data on magnetic tape. With this digital tape recorder, for example,
As shown in Figure 9, the recording area 1.2.3 is
P), and recording area 2 may be reserved unrecorded as an area to be used later. In order to achieve such a recording form, after recording a large amount of data in recording area 1, the tape corresponding to recording area 2 is advanced by a portion of the tape, and recording in recording area 3 is performed. In this case, address data is also written in each recording track. Also, when the rotary head reaches the start of recording area I, the tape (TP) is fed at high speed, and when the rotary head reaches the start of recording area 3, the tape (TP) is fed at high speed.
If tape feeding is controlled so that tape P) is fed at a constant speed, no recording trunk address is written in recording area 2.

[Problems with background technology]

According to the conventional digital tape recorder described above, the consistency and continuity of the track addresses in recording areas 1, 2, and 3 are lost. Therefore, in the digital tape recorder described above, when attempting to detect the tape position using the track address, there is a problem in that the search is difficult.

[Purpose of the invention]

This invention was made in order to deal with the above-mentioned situation, and it is possible to reserve and secure a recording area corresponding to the amount of information to be recorded afterward, and even if an attempt is made to record another recording area, the length of the tape will be To provide a rotary head type digital tape recorder that can reproduce a desired sequence at the time of recording without impairing the consistency of track addresses in the direction and without specifying the reproduction order of each group of data. The purpose is to

[Summary of the invention]

In this invention, when securing a recording area for later recording on a tape, multiple pieces of information are recorded on the actual tape in the order in which they are recorded, rather than moving the tape forward to secure the recording area. Ru. On the other hand, the information after which information the reserved recording area was secured is separately stored in a storage means, and the order in which the data should be reproduced is stored as a start track address. Therefore, at the time of playback, the tape is searched in accordance with the playback order stored in the storage means, so that the tape can be played back in the desired order at the time of recording. As a result, the track address on the tape is
Consistency is obtained from the beginning to the end.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the invention.

In order to make the explanation easier to understand, the explanation will be made from the recording track format, data format, data type, etc. In FIG. 2, 10 is a magnetic tape, and 11 is a recording track recorded by a rotary head.

For example, as shown in FIG. 3, the recording track 11 includes an 8-bit synchronization section 11a, a 19-bit track address section 11b located after this synchronization section 11m, and several bits of error located after this track address section 11b. The error check code section 11c includes a recording signal section 11d located after the error check code section 11c.

For example, an index area I2 is set at the start end of the tape 10, and index data (start track address and end track address of each piece of information) corresponding to a plurality of pieces of information (for example, music programs) recorded in the recording signal section is set. Track addresses, etc.) are recorded. The data format for one track of this index data is set, for example, as shown in FIG. 4, and such data is recorded on several dozen tracks. 12a is an 8-bit synchronization signal part, 12b is a 9-bit track address part, 12c is a start track address part of one of the plural pieces of information, 12d is an end track address part, and 12e is a few bits of error. This is the inspection code section.

Furthermore, in the next track after the last track of the index data section, the maximum number of recordable tracks on the tape 10 is recorded at a position corresponding to the start track address section 12c.

FIG. 1 shows an embodiment of a digital tape recorder that performs recording while obtaining consistent track addresses using the above-mentioned formants, and that reproduces data in a desired playback order during playback.

[When recording]

The recording signal input from the terminal 22 is combined with the track address signal from the track address generator 21 and the signal synthesizer 3.
6, and recorded on the recording/reproducing head 17 via the recording/reproducing main amplifier 18 on the recording/reproducing head 17. Further, the signal from the signal combiner 36 is input to the track address separation circuit 24, where the track address signal is separated. This track address signal is input to the data processing section via the input port 27.

[When playing]

The reproduction signal from the recording/reproducing head 17 is transmitted to a recording/reproducing amplifier 18,
Synchronous circuit 19, ml) output terminal 2 via correction circuit 20
3. Further, the reproduced signal from the error correction circuit 2σ is inputted to the track address 9 address separation circuit 24, where the track address information is separated. This track address information is input to the data processing section via input J-) 27.

[When recording index data]

The index data includes a start track address and an end track address of information recorded in one degree as shown in FIG. 4, and is data recorded at the beginning of the tape.

When index data is recorded, data in the format shown in FIG.
The signal is input as serial data to the signal synthesizer 36 via the . In this signal synthesizer 36, after the track address data from the track address generator 21 is added to the position of the track address section 12b, the recording/reproducing main amplifier 1
8 to the recording/reproducing head 17.

[When playing index data]

The index data recorded at the recording start portion of the tape is outputted through the recording/reproducing head 12, the recording/reproducing main amplifier 18, the synchronization circuit 19, and the error correction circuit 20. and,
The track addresses of the track address section 12b in the data format shown in FIG. 4 are separated by a track address separation circuit 24, the start track address is separated by a start track address separation circuit 25, and the end track address is separated by an end track address separation circuit 26. separated by The data separated by the respective separation circuits 24, 25, and 26 is stored in the index data storage circuit 291C via the input port 27. This storage circuit 29 is configured with a random access memory (RAM).

The input port 27 is connected via a common bus 35 to a microprocessor 28, an index data storage circuit 29, a program 2 memory circuit 30 consisting of a read-only memory,
The output port 37 is connected to the output port 33 that outputs the tape drive mechanism 34Vc data. Further, an input/output port 31 for passing input/output data to the input key 32 is also connected to the common bus 35. Although not shown, it is assumed that a circuit for processing signals recorded and reproduced via the tape 1o is provided separately.

For example, if the number of pieces of information is 30 (the number of songs), the index data recording circuit 29 stores data on 32 tracks, including the trunk for recording the maximum number of recordable tracks on the tape. requires storage capacity to write.

For example, as shown in FIG. 5, a capacity is required to secure 32 blocks of a 19-bit start track address and a 19-bit end track address.

Next, the operation of the above system will be explained with reference to the flowchart shown in FIG.

In FIGS. 6A, 6B, and 6C, when the tape is loaded, index data and track number data are read from the tape in step (Sl),
It is stored in the index data storage circuit 29. In this case, the index data storage circuit 29 stores the start track address and end track address stored in each track of the index area 12 (FIG. 2), but the data area number is shown in FIG. As shown, the 1st, 2nd, 3rd line, etc. will be closed.

Let N be the number of rows in which data is actually written. This value N is temporarily stored in the temporary storage section 281 of the microprocessor 28.

(Step S, ?) In step S2, it is determined whether or not there is information in the track number data area. The lack of data means
Since it is an unused tape, Stella f(s s>, (s
Proceed to routine 4).

(Steps S3 and S4) In step (S3), the microprocessor 28
Data is sent to the input key 32 via the input/output port 31, and a display means, for example, causes a display to indicate that the tape is unused. Also, when the maximum number of recordable tracks is inputted from the input key 32 by the operator's operation,
The data is written into the index data storage circuit 29. Then, the process moves to step S5.

(Step S5) In step S5, it is determined whether the input key 32 is giving a recording instruction or a reproduction instruction. If a recording instruction has been given, the process moves to step (S6); if a playback instruction has been given, the process moves to step (s J , ?).
Move to.

(Step 86) In step S6, the end track address is read from the Nth index data area stored in the index data storage circuit 29, and the end track address is read out from the temporary storage area allocated in the microprocessor 28. This end track address is stored in 282. For the sake of explanation, this address will be referred to as Ta. After this process is performed, the process moves to step S7.

(Step 87) In step S7, the microprocessor 28 calculates (maximum number of recordable tracks) (Ta+(total number of reserved tracks for recording)). This result is then stored in the temporary storage unit 2.
1J3tlC memorized. For the sake of explanation, this value will be referred to as Tn. The value of Tn means the number of remaining recordable tracks. When this calculation is completed, the process moves to step (S8).

(Step S8) In step S8, the content Tn of the temporary storage section 283 is compared with 0. If Tn is O or negative, there is no recording margin on the tape, so the process moves to step (s,?4). In step (S24), the data in the index data storage circuit 29 is recorded in the index area set at the beginning of the tape. Accordingly, in step (82), the tape drive 34 is controlled by the microprocessor 28, the tape is returned to the beginning, and the address generation of the track address generator 21 is also derived from the initial value.

Also, in step (S8), if Tn) is 0, Stella (
Proceed to S9).

(Step 89) In step S9, an operation for sending the tape to track address Ta is obtained, and when the tape is moved to track address Ta, the process moves to step (S10).

(Step 5IO) In step S10, an instruction for recording reservation is entered.
32 is input. Recording reservation is performed when securing an unrecorded area on the tape for later recording. If the recording reservation is instructed, the process moves to step (S16), and if the recording reservation is not performed, the process moves to step (szZ)K.

When a recording reservation has been made and the process moves to step (sz6), the number of reserved tracks is input by operating the input key 32. The data on the number of reserved tracks is obtained in step (S17).
is stored in the N+1 row, and this N+1 is stored as a new N in the temporary storage unit 281. Step (S
18). Then, the process moves to step (S23), and it is determined whether or not to continue recording. If recording is not to be performed, the process moves to step (S24) and recording is performed; otherwise, the process returns to step (S5). Therefore, in step (S6), the number of remaining tracks is calculated again, and step (811) is reached. In step (811), it is determined whether there is an instruction to start recording.

(Step 5JJ) If there is no instruction to start recording at step 811, the process returns to the previous step (S5), and if there is an instruction to start recording, the process moves to Stella f (S12).

(Stella fs Z 2 ) In step 812, it is determined whether recording is to be performed in a reserved portion or in a non-reserved portion. In order to record in a reserved section, input data is inputted from the input key 32 to indicate which subsection is to be recorded. In this case, the process moves to step (825). If you want to record in an area that is not reserved, press the input key 32.
There is no input data from , and when this is determined, the process moves to step (S45).

(Step 545) In step S45, the value N in the temporary storage section 281 is N+.
Updated to 1. This means that a new information recording area has been set on the tape. When the process of step 845 is completed, the process moves to step (S43).

(Step 543) In step S43, Ta
+1 is performed to calculate the start address of the newly recorded information, and this start address is stored in the start address section of the ON row of the index data storage circuit 29.

Then, the process moves to step (S13), and the tape recorder is operated in recording mode. In this recording mode, in step (814), the number of remaining syllables is calculated.

(Step 514) In step 814, in the microprocessor 28, (maximum number of write tracks) - ((current number of tracks) +
(number of reserved tracks)) is calculated. For the sake of explanation, this value will be referred to as Trn. This value Trn is stored in the temporary storage section 284 of the microprocessor 28. The current track address is read from the address generator 21 via the signal synthesizer 36, the track address separation circuit 24, and the input port 27. The current track address is step (86~
The address is updated every time a track is formed based on the start address obtained in the routine 543).

The number of remaining tracks T obtained in this step (SZ4)
m is compared with O in step (815).

(Step 515) If the conclusion that Tm>0 is obtained in step (S15), the process moves to step (819) and it is determined whether or not a tape running stop instruction has been input from the input key 32. If there is no instruction to stop tape running, step (st4
The routine b (srs) (st9) is formed, and if there is an instruction to stop tape running, the process moves to step (S20). Further, this step (S20) includes step (S20).
15) when the result of Tm≦0 is obtained.

(Step 520) In step 820, a tape running stop signal is outputted through the output port 33, and the tape is rotated.
is input.

(Step 521) In step 821, the track address generator 2
1, the current track address signal synthesizer 36, track address separation circuit 24, input, je-
is read by the microprocessor 28 via the port 27,
It is temporarily stored in the temporary storage section 285. Then, it is stored in the end track address storage section of the Nth row of the data storage circuit 29 for one index. Next step (S
22).

(Step 522) In step S22, the contents of the temporary storage section 281 are updated to N4-N+1 again, and the process moves to step (S, ?J). Tsumashi becomes ready for recording the next information.

Next, a case will be described in which a recording instruction for a reserved portion is issued in step (812). In this case, the process moves from step (SI2) to step (825).

(Step 525) In step 825, it is determined which recording reserved portion 5 is to be recorded.

The number of the recording reservation part is inputted from the input key 32 and stored in the temporary storage section 285 of the microprocessor 25, and the process moves to step (826) lc. Now, for the sake of explanation, the number of the recording reservation part is assumed to be n.

(Step 526) In step 826, the data on the number of reserved tracks stored in the first row of the index data storage circuit 29 is read out and stored in the temporary storage section 286 of the microprocessor 28. The number of reserved tracks is the data stored in the previous step (816), and is stored in the row for which reservation is desired.

In other words, the user now has the first record between the normally recorded information prisoner and (B).
Set the number of reserved tracks (TR1) for the normal h recording information (B) and (C') and set the number of reserved tracks for whistle 2 (TR2).
), the data array of the index data storage circuit 29 is arranged as shown in FIG. SAZ, SA,? ,SA,? is an intelligence prisoner (B) (
C) each starting track address, EAL.

EAl and EAj are the end track addresses of information (A), (B), and (C). Information (D) (6) is recorded later after recording information (A), (B), and (C).
In this example, it is desired to play the information prisoners in the order of ) (B), (E), and (C) when playing back. Also, information) (g)
) is not recorded, the arrangement of recording areas on the tape 10 is as shown in FIG. 8, in which information (5), (B), and (C) are recorded in this order from the beginning of the tape.

Now, in step (S26), for example, when the number of reserved trunks (RTZ) is read out, the process moves to step S44. In step 844, the start track address for the information to be recorded next is calculated from the end track address (of information C) read out in step (S6), and the start track address is written in the start track address section of the second line. Remember.

At this time, the tape has been fed to the track position immediately before this starting track address in step (S9). Then, the process moves to step (828), where information is recorded.

In this case, on the actual tape, information C) is recorded next to information C). Note that the address generator 2
1, the start address of information (C) is sent as preset data. Information (D) is thus recorded, and during recording, step (S28) is performed.

The routines (S29) and (s2y) are processed.

(Step 528) In step 82B, it is determined whether or not there is an instruction to stop tape running. If there is a stop instruction, tape running is stopped in step (SSO), and then the end track address of information (C) is , is stored in the end track address section of the second line, and then the process moves to the previous step (S23). Further, during the above recording operation, in step (829), the current track address Ti is temporarily stored in the temporary storage section 287 in the microprocessor 28, and the count value is calculated as the number of reserved tracks in the temporary storage section 286. When the number of recorded tracks is equal to the number of reserved tracks,
The process moves to step (S30).

Next, a case will be described in which it is determined in step (S5) that the playback mode is set.

When in the playback mode, preparations start from step (S5) and the process moves to Stella fs41.

Step 841 is the same process as step S34,
The starting track address and ending track address for the information) are read, with the starting track address being stored in temporary storage circuit 288 and the ending track address being stored in temporary storage circuit 282. Then, the process moves to step (842), the tape is fed to the start track address, and the information (D) is reproduced. (Step 537
) When the reproduction of information 0)) is completed, the index data of the third row is read out, and the next reproduction of information (B) bζ is performed. At the time of playback, (step 838), in step 83B, it is determined whether the current track address is smaller than the end track address, or whether they match or are larger. The current track address is separated from the reproduction signal. If the current track address matches the end track address, the process moves to step (S40).

(Step 540) In step 840, S in the temporary storage circuit 285 is
is set to 8+1, this is set as a new S, and re-memorization is performed.

Finally, if the information just reproduced corresponds to the information (4) on the first line in Figure 7, the start address of the Sth line for reproducing the information (on the second line) is read out. Stella 7' (S
,? In step 5), the tape is fed to the starting track address. At this time, the starting track address is
The ending track address is stored in temporary storage circuit 282 within microprocessor 28 .

(Step 836) In step 836, it is determined whether a reproduction instruction has been input from the input key 32 or not. When a reproduction instruction is given, the process moves to step 837, tape running is started in the normal playback mode, and the process moves to step 83B. Step (SJJ)K
Move.

(Step 532) In step 832, from the input key 32, the desired index data area number, tab,
Line data as shown in the figure is input, and the cue position can be specified. The data at this time is stored in the temporary storage circuit 285VC of the microprocessor 28. This data value S is read in step (Sl) and compared with 9N to determine whether eight pieces of information are recorded. (Stella fS 33 )S) If N, the process returns to step 832 and re-input is requested; if S≦N, the process moves to step S34. In the example shown in the figure, information (4))
It will be played back in the order of (B). This is exactly the playback order that the user desired at the time of recording. According to this invention, if the address data in the index data storage circuit 29 is processed in order from the first row and the indicated position of the address data is reproduced, reservations can be made at the time of recording and the data can be recorded later. Information is played in a scheduled order. However, in this invention, as can be seen from the example in FIG. 8, even if information (B) is reserved between information prisoners (B), the reserved space is 4- There is no need to reserve space. Therefore, when looking at the information in )~), the track addresses are consecutive and consistent, which is convenient for detecting the tape position.

The present invention can be used in the following manner, for example, when recording and editing a music program. After recording 3 songs from the beginning of the tape, and after making a recording reservation for 20,000 tracks as the 4th song, if you want to record the 5th song, when the recording of the 3rd song is finished, press the input key 32. 20000 using
) Make a reservation for the rack. After this operation, the number of reserved tracks is stored in the index data storage circuit 29 in an area corresponding to the reserved song order. After that, the fifth song will be recorded, and this fifth song is recorded on the tape 10 following the third song. Next, when recording the fourth song in the reserved 20,000) rack, the input key 32 is used to indicate that it is the fourth song and recording is performed. In this case, tracks 3 and 5 are on tape 1o.
The songs are recorded in the order of the first song and the fourth song. When a tape recorded in this manner is played back, the tape is manipulated so that the first to fifth songs are played back, regardless of the actual recording order. In addition, the playback order desired by the user can be obtained. Moreover, the track addresses on the actual tape are consistent, making tape position and presentation easy.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to obtain consistent track addresses even if other information is recorded after determining the tape length for the information that will be recorded later. At the time of reproduction, it is possible to provide a rotary head system that can automatically reproduce information in the order desired at the time of recording.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the tape recording area, Fig. 3 is an explanatory diagram showing the format of the recording track, and Fig. 4 is the format of the index data recording track. FIG. 5 is an explanatory diagram showing the storage contents of the index data storage circuit, and FIGS. FIG. 7 is an explanatory diagram showing an example of the storage contents of the index data storage circuit; FIG. 8 is an explanatory diagram showing an example of the securing state of the tape recording area; FIG. 9 is an explanatory diagram showing an example of the state in which the tape recording area is secured; FIG. 3 is an explanatory diagram showing an example of securing a recording area. 17... Recording/playback head, 18... Recording/playback main amplifier, 2
I... At9 address generator, 24... Track address separation circuit, 25... Start track address separation circuit, 26... End track address separation circuit, 27...
・Input $-to, 2B...Microsoroscessor, 29・
. . . index data storage circuit, 30 . . . program memory circuit, 32 . . . input key 134 . . . tape small movement mechanism. Applicant's agent Patent attorney Takehiko Suzue? Figure 5 Figure 6 (C) Figure 7 Figure 8 Figure 9 TI)

Claims (1)

[Claims] In a rotary head tape recorder that records a track address signal together with recording data on each recording track, a start track address signal and an end track address signal of a certain set of first information are input to the first track address signal. index storage means for storing the number of information from the start of the recording tape in a position that can be identified by area (row); means for introducing a reserved track number signal for the reservation information next to the recording of the first information, and storing this track number signal in a second area next to the first area of the index storage means; controlling a tape drive so that when second information is recorded on the tape, the second information is recorded on the tape following the first information; means for storing a track address and an end track address signal in a third area next to the second area of the index storage means, and when the reservation information is recorded on the tape, the second information Next, the tape drive mechanism is controlled so that the reservation information is recorded, and the track address next to the end track address of the second information is set as the start track address signal of the reservation information in the second area. Also, means for storing an end track address signal of the reservation information, and means for performing a tape position search so as to reproduce information corresponding to the start track addresses of the first, second, and third areas in the order of the areas during playback. A rotary head tape recorder characterized by comprising: