JP2525522Y2 - Search device for tape recorder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape recorder search apparatus, and more particularly to a tape recorder search apparatus suitable for use in a high-speed search in a magnetic recording / reproducing apparatus such as a DAT.

[0002]

2. Description of the Related Art In a DAT, for example, when a search key is turned on after a target position (such as a song number) is set by a user, a microcomputer gives a high-speed winding command to a traveling control system to wind a tape at a high speed. Let me pick. And
During high-speed winding, the microcomputer inputs the subcode data read from the tape by the reproducing system, determines whether or not it matches the target position, and if not, continues the high-speed winding of the tape. Thereafter, when the tape reaches a position desired by the user and the subcode data input from the reproducing system matches the target position, the microcomputer terminates the high-speed winding of the tape. During high-speed winding, the rotational speed of the head is controlled so that the relative speed between the head and the tape is the same as during PLAY, so that the sub-code data can be read by the reproducing system.

[0003]

[0005] By the way, in the case of a digital recording tape created by a general user, aside from a commercially available soft tape, the recording state on the tape is not uniquely determined, and a certain portion of the tape is recorded. Is recorded digitally, but the recording part may be scattered on the tape as if no recording was made in some other part. When a high-speed search is performed on such a tape, no signal is detected while the head is scanning the non-recording portion of the tape. Therefore, the above-described constant control of the relative speed between the tape and the head is not performed. At the same time as the relative speed state is changed, there is no signal output from the head, so that the PLL of the signal synchronization circuit provided in the reproduction system is in the self-running state.

In this state, when the head rushes from the non-recording portion of the tape to the recording portion at a high speed, constant control of the relative speed between the tape and the head is performed, and the relative speed becomes almost the same as in the PLAY. A large response delay occurs before the data can be demodulated and the data can be demodulated, and the data in the first part of the recording unit is missed. For this reason, when the target position of the search is at the beginning of the recording section, it is impossible for the microcomputer to determine whether the current position of the tape matches the target position, which causes a problem that the high-speed search fails.

[0005] In addition, during the high-speed search, the display section for displaying the music number data of the data read by the head sometimes causes inconvenience when the user edits the music. In other words, on a tape on which a song "1, 2, 3" is recorded, a new 3
Suppose that a fourth song shorter than the song was additionally edited. In addition, DA
In T, the start ID of "1" is simultaneously recorded in the head of the tune that has been additionally edited. However, when the song number data is displayed as it is for the tape edited as described above, "1, 2, 3, 4,
3 "is displayed, which has the disadvantage of reducing the reliability of the display unit.

[0006] In view of the drawbacks of the prior art,
It is an object of the present invention to provide a tape recorder search device that is easy to use and highly reliable.

[0007]

In the search apparatus for a tape recorder according to the present invention, the tape traveling means performs high-speed winding of the tape, and the data read from the tape by the data reproducing means is converted to required destination data. In a tape recorder search device that terminates high-speed winding of a tape when it matches, a detecting means for detecting whether a head is in a recording portion or a non-recording portion of the tape, and a head being in a recording portion of the tape While it is detected that the data is read, the data reproducing means determines whether the data read from the tape matches the required destination data while the tape running means performs high-speed winding of the tape. By the way, when it is detected that the main search control means for stopping the high-speed winding and the tape has become a non-recording portion, it is detected that the tape has entered the recording portion next time. The tape running means is made to take up the tape at a high speed, and when it is detected that the tape has entered the recording section, the tape running means is rewound to the tape. A sub-search control means for causing the tape running means to perform low-speed winding of the tape and activating the main search control means when it is detected that the tape has entered the recording section again, and data read by the head during high-speed winding. Storage means for storing the music number data, music number data rewriting means for rewriting the music number data stored in the storage means only when the start ID is 1, and music stored in the storage means And a display unit for displaying number data.

[0008]

When the head is located at the recording portion of the tape, the data reproducing means determines whether the data read from the tape matches the required destination data while allowing the tape running means to take up the tape at high speed. Then, the high-speed winding is stopped when they match, and the search is completed. On the other hand, when the tape becomes a non-recording portion, the tape running means is caused to perform high-speed winding of the tape until it is detected that the tape has entered the recording portion, and it is detected that the tape has entered the recording portion. The tape running means rewinds the tape, and when it is detected that the tape has entered the non-recording section, the tape running means performs low-speed winding of the tape, and it is detected that the tape has entered the recording section again. Then, by activating the main search control means, the search operation is continued. The song number data of the data read by the head during high-speed winding is displayed on the display unit based on the song number data storage means. At this time, the rewriting of the music number data in the storage means is performed only when the start ID is 1, so that the music number data on the display section is rewritten only when the start ID is 1.

[0009]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an electrical configuration of the DAT according to the present invention. Tape 1 drawn from reels 10 and 12
4 is wound around a rotary cylinder 16 via a predetermined tape running system, and information (Lch, Rch data, subcode data) recorded on the tape 14 is recorded by a pair of heads 18 and 20 provided on the rotary cylinder 16. Etc.) are played. The reels 10 and 12 have reel motors 22 and 2 respectively.
The reel motor 22 is driven forward at low speed or high speed at the time of PLAY, at the time of low-speed winding in the PLAY direction (reproduction direction), or at the time of high-speed winding, and the reel motor 24 is controlled and driven. , The tape 14 is moved in the PLAY direction. Conversely, at the time of rewinding in the anti-PLAY direction, the reel motor 24 is driven to rotate in the reverse direction.
2 is controlled and driven, and the tape 14 runs in the anti-PLAY direction.

The rotary cylinder 16 has a cylinder motor 2
The tape 14 is helically scanned by the heads 18 and 20 by rotating the cylinder motor 26. However, while winding at high speed, the tape 14
When reading data from the tape 14, the head 18,
The number of rotations of the rotary cylinder 16 is controlled so that the relative speed to zero becomes the same as that during PLAY (about 3.1 m / s). A capstan 30 connected to a capstan motor 28 is provided in the middle of the running system of the tape 14.
At the time or when a high-precision boundary between the non-recording portion and the recording portion in the tape 14 is detected, the pinch roller 32 is pressed against the capstan 30 to allow the tape 14 to run at a constant speed.

The reel motors 22, 24, the cylinder motor 26, and the capstan motor 28 are connected to individually provided motor driving units 34, 36, 38, 40 and driven. The pinch roller 32 is pressed against and released from the capstan 30 by the drive of the mechanical drive unit 42.
As described later, the motor driving units 34, 36, 38, 40
Is connected to a motor control unit 44 to perform predetermined rotation control, and the mechanical drive unit 42 is connected to a microcomputer 46 to perform predetermined mechanical control.

The output sides of the pair of heads 18 and 20 are connected to a waveform equalizing section 48, and the recording signals reproduced by the heads 18 and 20 are amplified and shaped. The waveform equalizing section 48 determines whether the current tape position is a recording section or a non-recording section based on the presence or absence of a recording signal detected from the tape 14, and outputs a determination signal to the microcomputer 46 and the motor control section 44. have. Waveform equalizer 4
The output side of 8 is connected to a signal processing unit 50, which reads Lch and Rch audio sample data from the digital signal sent from the waveform equalizing unit 48, and converts the digital sample into a D / A converter 51.
Or the subcode data (including song number data, start ID data, relative time data, etc.) is read and output to the microcomputer 46.

The microcomputer 46 is connected to an operation unit 52 and a display unit 54 in addition to the mechanical drive unit 42, the motor control unit 44, and the signal processing unit 50. The microcomputer 46 has a CPU, a ROM, and a RAM connected to a bus. Based on a predetermined program stored in the ROM, the CPU performs overall control of the DAT, such as key input from the operation unit 52 and signal processing. Data input from unit 50, PLA for mechanical drive unit 42, motor control unit 44
It performs Y traveling control, high-speed search control, display control on the display unit 54, and the like. Especially, in high-speed search control,
Performs a skip control for skipping the non-recorded portion at high speed to the beginning of the next recorded portion, in addition to the normal search for the recorded portion of the tape 14.

Here, while one head scans the recording portion of the tape 14 once, the head detects a subcode signal. Therefore, each time one of the heads performs one scan, the sub-code data, that is,
Each item data such as a song number, a start ID, and a relative time is output. On the other hand, the microcomputer 46 inputs sub-code data for each scan, stores the sub-code data in the sub-code data buffer provided in the RAM for each item such as the song number and the relative time, and displays the song number and the relative time on the display unit. Processing such as outputting to 54 for display is performed. The RAM is also provided with a target position data buffer, so that the target position data for the search set by the user's designation operation can be stored. The target position data is set by a song number or the like.

At the start of the PLAY or at the start of the detection of the boundary between the recording section and the non-recording section, the mechanical drive section 42 inputs a pinch roller pressure control signal from the microcomputer 46 to move the pinch roller 32 to the capstan 30. Press. Conversely, when the PLAY ends or the boundary detection ends, a pinch roller release control signal is input from the microcomputer 46 to release the pinch roller 32 from the capstan 30 and release the pressure contact. When a PLAY traveling command or a low-speed winding command in the PLAY direction is input, the motor control unit 44 controls the motor driving unit 40 to rotate forward at a predetermined reference speed or at a speed three times the reference speed, and in the anti-PLAY direction. When the medium speed rewind command is input, reverse rotation control is performed at a speed 16 times the reference speed. Further, the motor control unit 44 receives a PLAY traveling command or P
When a low-speed winding command in the LAY direction is input, the motor drive unit 34 is controlled to perform normal low-speed rotation and the motor drive unit 36 is controlled to be braked, and when the pinch roller 32 presses the tape 14 against the capstan 30, the tape 14 is rotated. At a predetermined speed (PL
At AY: 8.15 mm / s, at low speed winding; 3 times speed at PLAY), run at a constant speed in the PLAY direction, and control the motor drive unit 38 at a constant speed to rotate the rotary cylinder 16 at 2000 rp.
Rotate with m.

When a high-speed winding command or a quasi-high-speed winding command in the PLAY direction is input from the microcomputer 46 to the motor control unit 44, the motor control unit 44 controls the motor driving unit 34 to perform high-speed normal rotation and brakes the motor driving unit 36. Control to make the tape 14 run at a high speed in the PLAY direction (at high speed; P
200 times of LAY, near high speed; 100 times of PLAY),
While the recording section of the tape 14 is being wound at a high speed, the motor control section 44 controls the tape 14 input from the signal processing section 50 side.
Based on the relative speed signals of the heads 18 and 20 (for example, a phase difference signal of a PLL), the motor drive unit 38 is variable-speed controlled so that the relative speed becomes the same as in the PLAY. Thus, when the recording unit is wound at a high speed, the tape 14 and the head 1
By keeping the relative speeds of 8 and 20 the same as in the PLAY, the subcode data can be detected and read on the reproducing side. Further, when a middle speed rewind command in the anti-PLAY direction is input from the microcomputer 46, the motor control unit 44 controls the motor drive unit 36 in the reverse rotation, controls the motor drive unit 34 to brake, and presses against the pinch roller 32. At the same time, the tape 14 is caused to run in the anti-PLAY direction at a predetermined speed (16 times the PLAY time).

The operation unit 52 is provided with various keys SW required for various operations, such as a PLAY key, a search start key, and a search target position designation key. Output to The display unit 54 is provided with an indicator such as a song number and a relative time (a position from the beginning of the song in the same song). The display unit 54 is based on a display control signal (including display data) sent from the microcomputer 46. Display each information.

Next, the processing operation of the microcomputer 46 when performing a high-speed search will be described with reference to the flowchart of FIG. The recording unit 1 is attached to the tape 14 as shown in FIG.
4A (1st, 2nd, 3rd and 4th songs), non-recording section 14B, recording section 14C (5th song), non-recording section 14D, recording section 14E
(Songs 6 and 7),... Are formed.
First, when the device is, for example, the track number 3 recorded in the recording unit 14A,
When the PLAY operation of the music according to the above is performed, the tape 14 is set to 8.
The recording signal on the tape 14 is reproduced by helical scanning by the heads 18 and 20 rotating at a constant speed of PLAY of 15 mm / s and rotating at 2000 rpm. And the waveform equalizer 4
8, and the signal processing unit 50 performs Lch and Rch
Are read and output to the D / A converter 51 and the microcomputer 46, respectively. The D / A converter 51 converts the audio sample data into an analog audio signal, and sends it out to an amplifier / speaker for sound output. Whenever one head scans once, the microcomputer 46
The sub-code data is input from the signal processing unit 50 and written into the sub-code data buffer, and the song number and the relative time are displayed on the display unit 54 (the result is that the song number display is <
3>).

In this state, the user operates the recording unit 14C, for example.
When the music number 5 is designated by the target position designation key in the operation unit 52 in order to listen to the music number 5 present in the operation unit 52, the microcomputer 46 writes the music number 5 in the target position data buffer, and Register settings. continue,
When the user turns on the search start key in the operation unit 52,
The microcomputer 46 detects in step 60, inputs the discrimination signal sent from the waveform equalizing section 48 and confirms that the current tape position is the recording section, and immediately sends the pinch roller release control signal to the mechanical drive section 42. And outputs a high-speed winding command in the PLAY direction to the motor driving unit 44, outputs a mute command to the signal processing unit 50, and starts high-speed winding (steps 62 and 64). The mechanical drive unit 42 releases the pinch roller 32 from the capstan 30 according to the pinch roller release control signal, and enables the tape 14 to run at high speed. The motor control unit 44 has a PLAY
In accordance with the high-speed take-up command in the direction, the reel motor 22 is controlled to perform normal high-speed rotation to start the high-speed running of the tape 14 with a predetermined speed (200 times of PLAY) as a control target. Under the condition that the discrimination signal of the recording section has been input, the relative speed constant control of the tape 14 and the heads 18 and 20 with respect to the motor drive section 38 is started. By this relative speed constant control, when the speed of the tape 14 is PLAY
When it reaches 200 times, the rotating cylinder 16 is almost 3000 rpm
Rotated by

Since the relative speed between the tape 14 and the heads 18 and 20 is kept the same as in the PLAY mode regardless of the high-speed running of the tape 14, the reproducing side can intermittently read data from the recording unit 14A. However, during high-speed winding, the signal processing unit 50 does not read audio sample data from the tape 14 in accordance with a mute command from the microcomputer 46, and sends out mute data to the D / A converter 51. On the other hand, the subcode data is output to the microcomputer 46 every time the head 18 or the head 20 performs one scan. The microcomputer 46 inputs the subcode data from the signal processing unit 50 every time the head scans, and rewrites the subcode data buffer of the RAM. However, during high-speed winding, rewriting of music number data is performed only when the start ID is “1”. Therefore, the recording unit 14
The song number data remains at 3 while the song related to song number 3 of A is being scanned. Then, based on the data in the subcode data buffer, the display section 54 displays the song number, the relative time, and the like (steps 66 and 68).

Subsequently, the microcomputer 46 determines whether or not the music number data in the sub-code data buffer matches the music number data SN in the target position data buffer (step 70). After inputting and confirming that the current position of the tape is still a recording section (step 72), the flow returns to step 66 again to input sub-code data for the next one-time scanning of the head and store the sub-code data buffer. After rewriting (Start ID
Is zero, the song number data is not rewritten), the song number or the like is displayed, and it is determined whether the song number data in the buffer matches the SN (steps 68 and 70).

Thereafter, while the same processing of steps 72 and 66 to 70 is repeated, the music number data of the subcode data input at step 66 comes near the beginning of the next music piece in the recording unit 14A. Starts at 4
If D is "0", the song number data in the buffer is not rewritten, and when the start ID becomes "1" at the beginning of the next song, the microcomputer 46 converts the song number data 4 into a subcode. Write to the data buffer. As a result,
The song number display is <4>. However, since the determination in step 70 is still NO, the microcomputer 46 repeats the processing in steps 72 and 66 to 70 again.

Thereafter, when the tape 14 is wound up and reaches the end of the recording section 14A, it subsequently enters the non-recording section 14B. Upon entering the non-recording section 14B, the waveform equalizing section 48 outputs a discrimination signal of the non-recording section. Therefore, the motor control unit 44
Stops the relative speed constant control between the tape 14 and the heads 18 and 20, and rotates the rotary cylinder 16 at 2000 rpm. On the other hand, when the discrimination signal is changed to the non-recording section, the microcomputer 46 detects this in step 72, and
Skip control for searching for the head of 4C is performed. That is, the microcomputer 46 first sends P to the motor control unit 44.
A command for quasi-high speed winding in the LAY direction is output (step 74). Upon receiving this command, the motor control unit 44 controls the motor drive unit 34 at a semi-high speed positive rotation, and sets the tape 14 to PLAY.
Run in the PLAY direction at 100 times the speed. Then, the microcomputer 46 waits until the discrimination signal input from the waveform equalizing section 48 changes to the recording section,
(Step 76).

When the winding of the non-recording section 14B advances and enters the next recording section 14C, the waveform equalizing section 48 outputs a discrimination signal of the recording section. Then, the microcomputer 46 detects this in step 76 and outputs a winding stop command to the motor control unit 44 to temporarily stop the rotation of the reel motor 22, and then sends a pinch roller pressure control signal to the mechanical drive unit 42. And outputs a medium speed rewind command in the anti-PLAY direction to the motor control unit 44 so that the non-recording unit 14B
And the rewinding of the tape 14 is started by an amount far beyond the boundary of the recording section 14C (steps 78 to 8).
2).

The mechanical drive unit 42 presses the pinch roller 32 against the capstan 30 in accordance with the pinch roller pressure control signal. The motor control unit 44 rotates the reel motor 24 in the medium speed reverse direction and the capstan motor 28 in the medium speed reverse direction in accordance with the medium speed rewind command in the anti-PLAY direction,
PLA the tape 14 together with the pressure contact of the pinch roller 32
The vehicle is run in the anti-PLAY direction at a constant speed 16 times that of the time Y. Then, the process waits until the discrimination signal input from the waveform equalizing section 48 becomes the non-recording section, and the rewinding of the tape 14 is continued (step 84).

When the rewinding of the tape 14 proceeds and enters the preceding non-recording section 14B, the waveform equalizing section 48 outputs a discrimination signal of the non-recording section. Then, the microcomputer 46 determines YES in step 84, outputs a rewind stop command to the motor control unit 44 once, stops the rotation of the reel motor 24, and then instructs the motor control unit 44 to perform a low-speed winding command in the PLAY direction. Is output, and the tape 14 is moved by an excessive amount from the boundary between the recording portion 14C and the non-recording portion 14B during the medium speed running of the tape 14.
Is wound up (steps 86 and 88). In this case, since the tape 14 is rewound at a medium speed and the pinch roller 32 is pressed against the capstan 30, the amount of overshoot is small.

Upon receiving the low-speed take-up command in the PLAY direction, the motor control unit 44 rotates the reel motor 22 forward at a low speed, and sets the capstan motor 28 at the reference speed of three.
Double rotation at the same time as the pinch roller 32 is pressed,
The tape 14 is caused to run at a constant speed in the PLAY direction at three times the speed of the PLAY. And the microcomputer 46
Waits until the discrimination signal indicates the recording section, and continues the low-speed winding of the tape 14 (step 90).

When the tape 14 runs at a constant speed at a low speed and reaches the boundary between the non-recording section 14B and the recording section 14C, the waveform equalizing section 48 outputs a recording section discrimination signal. Upon receiving this determination signal, the microcomputer 46 immediately outputs a winding stop command to the motor control unit 44 to temporarily stop the rotation of the reel motor 22 (step 92). Until this time, since the tape 14 is running at a very low speed and the pinch roller 32 is pressed against the capstan 30,
When the running of the tape 14 is stopped, the heads 18 and 20 come just at the border between the non-recording section 14B and the recording section 14C. Therefore, it is possible to detect and read the subcode data from the start end of the recording unit 14C.

The microcomputer 46 controls the tape 14
After stopping the take-up of the recording section 14C, the process proceeds to step 64 to output a pinch roller release control signal to the mechanical drive section 42, and to output a high-speed take-up command in the PLAY direction to the motor control section 44, and to the recording section 14C. Start a normal search. That is, the mechanical drive unit 42 is urged by the pinch roller release control signal to
Release the pressure contact. In addition, the motor control unit 44
In response to the high-speed winding command in the direction, the reel motor 22 is rotated at high speed in the normal direction, and the tape 14 is caused to run at 200 times the speed of PLAY at high speed. Then, according to the discrimination signal of the recording section sent from the waveform equalizing section 48, the tape 14, the head 18,
The relative speed constant control of the tape 20 is restarted, and the rotary cylinder 16 controls the speed of the tape 14 from zero to P
From 2000rpm as it rises to 200 times that of LAY
Increased to 3000rpm. Therefore, at the start end and near the start end of the recording section 14C, the speed of the tape 14 is still low at the beginning of the rise, and the tape 14 and the heads 18, 20
Since the relative speed with respect to PLAY is kept the same as that during PLAY, there is no response delay on the PLL side of the signal processing unit 50, and the subcode data can be reliably read from the beginning of the recording unit 14C.

The microcomputer 46 includes the recording unit 14
Each time the head scans once from the beginning of C, the signal processing unit 5
0 is input and written to the subcode data buffer (however, the start I
When D is "0", the track number data is not rewritten),
The display of the song number, the relative time, and the like is performed, and further, it is determined whether the song number data in the subcode data buffer matches the search number SN and whether the current tape position is a recording unit (steps 66 to 72). Repeat).

The fifth tune is recorded in the recording unit 14C, but the tune number data in the subcode data is recorded in the recording unit 14C.
Even if it is 5 from the beginning of C, the beginning of the song is a little later, and when the start ID is “0” in the beginning, the start ID input from the signal processing unit 50 is “0”.
, The song number data in the buffer is not rewritten, and the song number display remains <4>. Thereafter, the search proceeds, and when the start ID in the subcode data input in step 66 becomes "1", the music number data 5 input at that time is written into a buffer together with other relative time data, etc. Display is performed based on the buffer data. Thus, the song number display becomes <5>.

Next, the microcomputer 46 determines in step 70 whether or not the music number data in the buffer matches the search number SN. In this case, the answer is YES. After the take-up stop command is output and the rotation of the reel motor 22 is stopped, the pinch roller 32 is pressed against the capstan 30 to accurately return the tape 14 to the start position of the start ID of the fifth song. A PLAY running command is output to the motor control unit 44, a mute release command is output to the signal processing unit 50, and the PLAY operation is started (steps 96 and 9).
8). The motor control unit 44, in accordance with the PLAY traveling command,
The rotating cylinder 16 is rotated at a constant speed (2000 rpm), and the tape 14 is caused to run at a predetermined speed (8.15 mm / s) at the same time as the pinch roller 32 is pressed against the capstan 30. The signal processing unit 50 resumes reading the audio sample data from the tape 14 in accordance with the mute release command, and outputs the audio sample data to the D / A converter 51 for sound output.

Here, even if the beginning of the recording section 14C substantially coincides with the beginning of the music, and even if the start ID is "1" from almost the beginning of the recording section 14C, the signal processing section 50 continues to operate. Since the subcode data has been correctly read from the beginning of the recording section 14C, immediately after starting a normal search for the recording section 14C, in step 66, the subcode data including the track number 5 and the start ID "1" is input, and The subcode data buffer including the number data 5 can be rewritten. Therefore, YES can be determined in the next step 70 in the coincidence determination between the song number data in the subcode data buffer and the search number SN, and step 94
Then, the search is surely stopped at the target position, and the music can be played from the beginning of the desired song of the user through the processes of positioning to the beginning of the song and starting PLAY.

As described above, even if the target position exists near the start end of the recording unit 14C, the search for the recording unit 14C is accurately performed from the start end, so that a search failure due to missed data reading can be avoided. . Note that, for example, during PLAY running in the non-recording section 14B (however, since no recording signal is detected, the signal processing section 50 outputs the mute data to D
/ A converter 51. When the user designates the track number 5 and turns on the search start key, the microcomputer 46 detects this in step 60, and then determines NO when the next tape current position is the recording section. In step 100, a pinch roller release control signal is output to the mechanical drive unit 42, a quasi-high speed take-up command in the PLAY direction is output to the motor control unit 44, and a mute command is output to the signal processing unit 50. After the quasi-high-speed winding is started, the flow proceeds to step 76 to enter skip control for searching for the next recording section.

Also, unlike this, the recording unit 14A is
When the user designates the music number 6 and turns on the search start key during the AY running, the microcomputer 46 normally searches the rest of the recording unit 14A in the same manner as described above (steps 60 to 72, 66 to 66). 72), the skip control is performed when entering the non-recording section 14B, and the next recording section 14C is searched (steps 74 to 94). When the next recording section 14C is reached, a normal search is performed again (steps 64 to 72). 66
~ 72 repetitions). However, since the tune corresponding to tune number 6 cannot be found in the recording unit 14C, the recording unit 14C enters the second non-recording unit 14D. When entering the non-recording section 14D, the microcomputer 46 performs skip control again to search for the next recording section 14E (steps 74 to 94).
When it comes to E, a normal search is performed again (steps 64 to 7).
2, repetition of 66 to 72). Therefore, it can be seen that the search can be performed even at the destination existing in the recording unit 14E.

According to this embodiment, when the search start key is turned on, the microcomputer 46
The normal high-speed search is performed for the recording portion of the tape 14, while the high-speed skip control for searching for the next recording portion is performed for the non-recording portion of the tape 14, and the next recording portion is detected during the high-speed skip control. Then, a high-precision boundary where the pinch roller is pressed against the capstan is detected and adjusted to the start position of the recording section, and a normal high-speed search for the recording section is started. If there is, the tape immediately jumps to the next recording part, and when moving from the non-recording part to the recording part, the position is quickly and accurately aligned with the beginning of the recording part, and the tape moves from the low-speed state to the high-speed part from the recording part. In this state, the head scans the tape at and near the beginning of the recording unit in almost the same state as at the time of PLAY, so that the PLL synchronization on the reproduction side starts from the beginning of the recording unit. Because, even beginning near the subcode data recording portion can be accurately read, destination search can be performed reliably fast search even if there in the beginning near the recording unit. In the above embodiment, PLA
Although the high-speed search in the Y direction has been described as an example, the present invention may be applied to a high-speed search in the anti-PLAY direction.

The rewriting of the music number data on the display unit is configured to be performed only when the start ID is 1, as described above. Therefore, a tape edited as exemplified in the description of the conventional display unit, that is,
On a tape on which a song "1, 2, 3" is recorded,
When the song number data is displayed on a tape edited as if a fourth song shorter than the third song was additionally edited in the middle of the third song, "1, 2, 3, 4" is displayed. , It is easy to use and highly reliable.

[0038]

According to the present invention, the detection means detects whether the tape is in the recording section or in the non-recording section. The data read from the tape by the data reproducing means while the tape running means performs high-speed winding of the tape by the search control means,
Judgment is made as to whether the tape matches the required destination data. When the data matches, the high-speed winding is stopped, and when it is detected that the tape has become a non-recording part, the sub search control means enters the next recording part. The tape running means performs high-speed winding of the tape until the tape is detected, and when it is detected that the tape has entered the recording section, the tape running means rewinds the tape. Is detected, the tape running unit performs low-speed winding of the tape, and when it is detected that the tape has entered the recording unit again, the main search control unit is activated, so that there is a non-recording portion during the search. When the tape jumps to the next recording part quickly and moves from the non-recording part to the recording part, the position is quickly and accurately aligned with the beginning of the recording part, and the tape moves from the low-speed state to the high-speed state from the recording part. Because I get up, PLL synchronization reproduction side because of approximately beginning of the recording unit I, even beginning near the data recording portion can be accurately read, the destination of the search,
An excellent effect that a high-speed search can be reliably performed even when the recording portion is near the beginning of a recording portion that is discretely present on the tape, and a wide range of search functions can be realized irrespective of the recording state of the search target condition.

In the display section for displaying the music number data of the data read by the head during high-speed winding,
As described above, since the rewriting of the music number data is performed only when the start ID is 1, a highly reliable display unit with good usability can be provided.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a DAT according to an embodiment of the present invention.

FIG. 2 is an exemplary flowchart for explaining the operation of the microcomputer in FIG. 1;

FIG. 3 is an explanatory diagram showing a recording state of a tape.

[Explanation of symbols]

 14 Tape 22, 24 Reel motor 30 Capstan 42 Mechanical drive unit 44 Motor control unit 46 Microcomputer 48 Waveform equalization unit 50 Signal processing unit

Claims (1)

(57) [Scope of request for utility model registration] 1. Search for a tape recorder which causes a tape running means to perform high-speed winding of a tape, and terminates high-speed winding of the tape when data read from the tape by a data reproducing means coincides with required destination data. In the apparatus, a detecting means for detecting whether the head is in a recording portion or a non-recording portion of the tape, and while the head is detected to be in the recording portion of the tape, the tape is moved to the tape running means. The data read by the data reproducing means from the tape while the
The main search control means that determines whether the tape matches the required destination data and stops high-speed winding when the data matches, and when it is detected that the tape has become a non-recording area, The tape running means performs high-speed winding of the tape until the tape is detected, and when it is detected that the tape has entered the recording section, the tape running means rewinds the tape. Is detected, the tape running means performs low-speed winding of the tape, and when it is detected that the tape has entered the recording section again, the sub-search control means activates the main search control means. Storage means for storing the track number data of the data read by the apparatus; track number data rewriting means for rewriting the track number data stored in the storage means only when the start ID is 1; Memory And a display unit for displaying the selected music number data. A search device for a tape recorder, comprising: