JPH0664770B2 - Recording / playback device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a recording / reproducing apparatus, and more particularly to a recording / reproducing apparatus suitable for use in, for example, cueing information in a high speed mode.

[Conventional technology]

The conventional method for locating information in a recording / reproducing apparatus is to feed the tape at high speed without pressing the pinch roller to the capstan, find the target position and stop, and press the pinch roller to the capstan for the excess. The method is to return it.

This will be further described in detail with reference to FIG. 1 showing the system of the recording / reproducing apparatus and FIGS. 2 and 3 showing the flow chart thereof.

In FIG. 1, (1) is a supply reel, (2) is a take-up reel, and (3) is a magnetic tape wound between these reels. The reels (1) and (2) are rotationally driven by reel motors (4) and (5), respectively. And these reel motors (4),
The drive of (5) is controlled by the reel motor control circuit (6).

Further, (7) is a capstan, (8) is a capstan motor for rotationally driving the capstan (7), and (9) is a capstan motor control circuit for driving and controlling the capstan motor (8). (10) is a pinch roller provided facing the capstan (7), (11) is a spring stretched around the pinch roller (10), and (12) is a pinch against the elastic force of the spring (11). Laura (10)
Plunger circuit for controlling the, (13) is a system control circuit composed of a microcomputer for supplying various control signals to the control circuits (6), (9) and the plunger circuit (12),
Reference numeral (14) is a head for supplying information from the tape (3) to the system control circuit (13).

First, a case where information is cued in the fast forward (FF) mode will be described with reference to FIGS. 2A controls the reel motor control circuit (6) by the system control circuit (13), and FIG. 2B controls the capstan motor control circuit (9) by the system control circuit (13). FIG. 2C shows a case where the plunger circuit (12) is controlled by the system control circuit (13).

Now, in the period T ₁ , the system control circuit (13) controls the reel motor control circuit as shown in FIG. 2A.
By controlling (6), the reel motors (4), (5) are driven to rotate, and the tape (3) wound around the reels (1), (2) is fast forwarded (FF) to find the fast forward search. to go into. At this time, the system control circuit (13) sends a 1x speed signal to the capstan motor control circuit (9) as shown in FIG. 2B, and the capstan motor (8) drives the capstan (7). It is made to control in the forward direction (FWD) and to the plunger circuit (12),
As shown in FIG. 2C, an OFF signal is sent to turn it off. Due to the deenergization of the plunger circuit (12), the pinch roller (10) is pulled by the spring (11) and separated from the capstan (7).

When the target position, that is, the beginning of the information is detected during the fast-forward search, that is, at the end of the period T ₁ , the stop mode is set at that time. Since the tape (3) is sent at a high speed, the tape overshoot naturally occurs at this time.

Therefore, in the period T ₂ , as shown in FIG. 2A, the system control circuit (13) is operated by the reel motor control circuit.
Supply a reverse (REW) signal to (6) to rewind the tape (3). Along with this, the system control circuit (13)
Is a capstan motor control circuit as shown in FIG. 2B.
A predetermined speed signal, for example, a -10 times speed signal is sent in the opposite direction to (9), and an ON signal is sent to the plunger circuit (12) as shown in FIG. 2C to energize it. By this urging, the plunger circuit (12) presses the pinch roller (10) against the capstan (7) against the elastic force of the spring (11), so that the tape (3) causes the capstan (7) and the pinch roller (7). 1
It is held in 0) and transferred.

When the target position is detected again during the rewinding at -10 times speed, that is, when the end of the period T ₂ is reached, in the period T ₃ , as shown in FIG.
(13) is, for example, the forward direction with respect to the reel motor control circuit (6)
Send (FWD) signal (normal playback mode signal). At the same time, the system control circuit (13) sends a 1x forward signal to the capstan motor control circuit (9) and sends a second signal to the plunger circuit (12) as shown in FIG. 2B. Continue to send ON signal as shown in Fig.
Keep (10) crimped to capstan (7).

In this way, it is possible to cue the information in the fast-forward mode.

Next, a case where information is cued in the rewind (REW) mode will be described with reference to FIGS. 3A controls the reel motor control circuit (6) by the system control circuit (13), and FIG. 3B shows the capstan motor control circuit by the system control circuit (13).
(9) is controlled, and FIG. 3C shows the system control circuit (1
3) shows the case of controlling the plunger circuit (12).

Now, in the period T ₁ , the system control circuit (13) controls the reel motor control circuit as shown in FIG. 3A.
(6) is controlled, the reel motors (4) and (5) are driven to rotate, and the tape (3) wound on the reels (1) and (2) is rewound (REW) to perform a fast-forward search for cueing. to go into. At this time, the system control circuit (13) sends a 1x speed signal to the capstan motor control circuit (9) as shown in FIG. 3B, and drives the capstan (7) via the capstan motor (8). In addition to controlling in the forward direction (FWD), an OFF signal is sent to the plunger circuit 12 as shown in FIG. 3C to deactivate it. Due to the deenergization of the plunger circuit (12), the pinch roller (10) is pulled by the spring (11) and the capstan (7) is pulled.
More separated.

When the target position, that is, the beginning of information is detected during the rewinding search, the stop mode is set at that time. Since the tape (3) is rewound at a high speed, the tape overshoot naturally occurs at this time.

Therefore, in the period T ₂ , as shown in FIG. 3A, the system control circuit (13) is operated by the reel motor control circuit.
Supply a forward (FWD) signal to rewind the tape (3) to (6). Along with this, the system control circuit (1
As shown in FIG. 3B, 3) sends a predetermined speed signal, for example, +10 times speed signal to the capstan motor control circuit (9) in the forward direction, and sends an (ON) signal to the plunger circuit (12). Send and activate this. With this bias, the plunger circuit
(12) presses the pinch roller (10) against the capstan (7) against the elastic force of the spring (11), so that the tape (3) is held between the capstan (7) and the pinch roller (10). Are transferred from

When the target position is detected again during the forward feed at +10 times speed, in the period T ₃ , the system control circuit (13) causes the reel motor control circuit (6) to operate as shown in FIG. 3A.
For example, a forward direction (FWD) signal (normal reproduction mode signal) is sent. At the same time, the system control circuit (1
3) sends a 1x forward signal to the capstan motor control circuit (9) as shown in FIG. 3B, and turns on the plunger circuit (12) as shown in FIG. 3C. Keep sending the signal and keep the pinch roller (10) pressed against the capstan (7).

In this way, it is possible to cue the information in the rewind mode.

[Problems to be solved by the invention]

By the way, in the case of the conventional method as described above, the capstan (7) rotates in the same forward direction as in the normal reproduction mode at 1 × speed during the high-speed search of the period T ₁ , so that the capstan (7) is first moved at the end of the space T _1. The target position of
It takes time for the capstan to rise in order to enter the predetermined speed of double speed or +10 times speed, and as a result, there is a drawback that the cue time of information becomes long.

The present invention has been made in view of the above circumstances, and provides a recording / reproducing apparatus capable of eliminating wasteful time due to the rise time of the capstan and shortening the information cue time.

[Means for solving problems]

The present invention detects the target position by feeding the tape in the high speed mode in the state where the pinch roller is not pressure-bonded to the capstan, and after detecting the target position, the amount of excess to the target position is detected by the capstan. In the recording / reproducing device in which the pinch roller is rewound to the target position while being pressed, the high speed mode is set, and at the same time, the rotation direction and the rotation speed of the capstan required to return the overshoot amount are set in advance. However, the capstan is configured to be driven in a state in which the pinch roller is not pressed against the capstan when the high speed mode is set.

[Action]

When detecting the target position in the high speed mode, the rotation direction and the number of revolutions of the capstan (7) required to return the excess amount to the target position are preset at the same time as the setting of the high speed mode,
The capstan is driven more than when the high speed mode is set, and the operation of returning the excess amount is smoothly entered.

〔Example〕

An embodiment of the present invention will be described below in detail with reference to FIGS.

Also in this embodiment, the configuration may be substantially the same as that shown in FIG. However, it should be noted that the present invention is functionally different from the conventional device.

In the present invention, it is noted that the tape moving direction in the period T ₂ is naturally determined if it is determined whether the cueing of information is performed in the fast-forward mode or the rewind mode. Therefore, if you decide how many times faster capstan feed will be performed in period T ₂ , period T _{2
During 1} it is possible to rotate the capstan (7) in the direction of rotation and the number of revolutions required in the period T ₂ . That is, the period T
_When the operation in ₁ is the fast-forward mode, the system control circuit (13) detects that it is in the fast-forward direction, and immediately turns the capstan (7) in the rotation direction and the rotation speed required in the period T ₂ , while the period T _When the operation in ₁ is the rewinding mode, the system control circuit (13) detects that it is in the rewinding direction and immediately turns the capstan (7) in the rotation direction and the number of rotations required in the period T _2. To do.

This will be described next with reference to FIGS. 2 and 3.

First, a case where information is cued in the fast forward (FF) mode will be described with reference to FIGS. Note that the same as the above
Figure D shows the reel motor control circuit (6) controlled by the system control circuit (13), and Figure 2E shows the cap stern motor control circuit (9) by the system control circuit (13).
2F shows the case where the plunger circuit (12) is controlled by the system control circuit (13).

Now, in the period T ₁ , the system control circuit (13) controls the reel motor control circuit as shown in FIG. 2D.
By controlling (6), the reel motors (4), (5) are driven to rotate, and the tape (3) wound around the reels (1), (2) is fast forwarded (FF) to find the fast forward search. to go into. At this time, the system control circuit (13) is to the capstan motor control circuit (9),
As shown in FIG. 2E, a signal at a predetermined speed, for example, -10 times speed is supplied in the direction opposite to the fast-forward and the plunger circuit (1
For 2), as shown in FIG. 2F, an OFF signal is sent to deactivate it. Due to the deenergization of the plunger circuit (12), the pinch roller (10) is pulled by the spring (11) and separated from the capstan (7).

When the target position, that is, the beginning of information is detected during the fast-forward search, the stop mode is set at that time. Since the tape (3) is sent at a high speed, the tape overshoot naturally occurs at this time.

Therefore, in the period T ₂ , as shown in FIG. 2D, the system control circuit (13) causes the reel motor control circuit to operate.
A reverse (REV) signal is supplied to (6) to rewind the tape (3). At this time, as shown in FIG. 2E, the system control circuit (13) sends a -10 × speed signal to the cap stern motor control circuit (9) as in the case of the period T ₁ , and the plunger circuit (12 ) Is sent as shown in FIG. 2F to energize it. By this urging, the plunger circuit (12) presses the pinch roller (10) against the capstan (7) against the elastic force of the spring (11), so that the tape (3) causes the capstan (7) and the pinch roller (7). 1
It is held in 0) and transferred.

When the target position is detected again during the rewinding at the -10 × speed, the system control circuit (13) causes the reel motor control circuit (6) to be displayed in the period T ₃ as shown in FIG. 2D.
For example, a forward direction (FWD) signal (normal reproduction mode signal) is sent. At the same time, the system control circuit (1
As shown in FIG. 2E, 3) sends a forward speed signal of 1 × speed to the capstan motor control circuit (9) and turns on the plunger circuit (12) as shown in FIG. 2F. Keep sending the signal and keep the pinch roller (10) pressed against the capstan (7).

In this way, it is possible to cue the information in the fast-forward mode.

Next, a case where information is cued in the rewind (REW) mode will be described with reference to FIGS. 3D controls the reel motor control circuit (6) by the system control circuit (13), and FIG. 3E shows the capstern motor control circuit by the system control circuit (13).
3 (F) controls the system control circuit (1
3) shows the case of controlling the plunger circuit (12).

Now, in the period T ₁ , the system control circuit (13) controls the reel motor control circuit as shown in FIG. 3D.
By controlling (6), the reel motors (4), (5) are driven to rotate and the tape (3) wound around the reel motors (1), (2) is rewound (RE
W) to start the fast-forward search for cueing. At this time, the system control circuit (13) is the capstan motor control circuit (9).
On the other hand, as shown in FIG. 3E, a signal of a predetermined speed, for example, +10 times speed is supplied in the direction opposite to the rewinding direction and the plunger circuit (12) is turned off (OFF) as shown in FIG. 3F. )
Send a signal and turn it off. This Plunger Circuit (12)
When the pinch roller (10) is deenergized, the pinch roller (10) is pulled by the spring (11) and separated from the capstan (7).

When the target position, that is, the beginning of information is detected during the rewinding search, the stop mode is set at that time. Since the tape (3) is rewound at a high speed, the tape overshoot naturally occurs at this time.

Therefore, in the period T ₂ , as shown in FIG. 3D, the system control circuit (13) causes the reel motor control circuit to operate.
Supply a forward (FWD) signal to (6) to rewind the tape (3) overshoot. Along with this, as shown in FIG. 3E, the system control circuit (13) sends a +10 times speed signal to the cap stern motor control circuit (9) as in the period T ₁ , and the plunger circuit (12) ), An ON signal is sent as shown in FIG. This bias causes the plunger circuit (12) to spring.
The pinch roller (10) is capped against the elastic force of (11).
It is crimped to (7) so that the tape (3) is capstan
It is held between the pinch roller (7) and the pinch roller (10) and transferred.

If again the target position during forward in this +10 speed is detected, in the period T _3, as shown in FIG. 3 D, the system control circuit (13) is a reel motor control circuit (6) e.g. Send a forward (FWD) signal (normal playback mode signal). At the same time, set the system control circuit (1
As shown in FIG. 3E, 3) sends a 1 × speed forward signal to the capstan motor control circuit (9) and also sends an ON signal to the plunger circuit (12) as shown in FIG. 3F. Is continuously fed to keep the pinch roller (10) pressed against the capstan (7).

In this way, it is possible to cue the information in the rewind mode.

As described above, in the present embodiment, since the pinch roller is rotated in the rotation direction and the number of rotations required during the operation of returning the overshoot in advance from the high speed search, the wasteful time for the rise of the capstan to move to the operation of returning the overshoot is eliminated. 2A to C and D to F and FIGS. 3A to C and D to FIG.
As can be seen from the comparison of F, the detection time of the target position during the operation of returning the overshoot is shortened.

〔The invention's effect〕

As described above, according to the present invention, the capstan motor is preliminarily started in the rotational direction and the rotational speed required in the operation of returning the portion of the tape that has passed since the high-speed mode search was stopped from the high-speed mode search stage. I decided to leave it
It is possible to eliminate a wasteful time due to the start-up time of the capstan, which was started after the operation of returning the excess tape, and it is possible to shorten the information cue time.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining the present invention and a conventional device, and FIGS. 2 and 3 are diagrams for explaining the present invention and a conventional example in comparison. (1) is a supply side reel, (2) is a take-up side reel, (3) is a tape, (4) and (5) are reel motors, (6) is a reel motor control circuit, (7) is a capstan, ( 8) is a capstan motor,
(9) is a capstan motor control circuit, (10) is a pinch roller, (12) is a plunger circuit, and (13) is a system control circuit.

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Toshiyuki Tani 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (72) Inventor Shigeyuki Satomura 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (56) Reference JP-A-56-159854 (JP, A) JP-A-55-42414 (JP, A)

Claims (1)

[Claims] 1. A tape is fed in a high speed mode in a state where a pinch roller is not pressure-bonded to a capstan to detect a target position, and after the target position is detected, a portion that has gone too far to the target position is capped. In the recording / reproducing apparatus in which the pinch roller is rewound to the target position while the pinch roller is pressure-bonded to the stun, the rotation direction and the rotation speed of the capstan required to return the overshoot amount at the same time when the high speed mode is set. Is set in advance, and the capstan is configured to be driven in a state where the pinch roller is not pressed against the capstan when the high speed mode is set.