JP2003036580A - Recording-and-reproducing device and recording-and- reproducing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent the interference between the position where the plastic deformation is caused by a tape guide inside a cassette in an unused tape cassette and the area where an information signal is recorded and reproduced to make good recording and reproduction of the information signal possible. SOLUTION: When the eject operation is executed after the execution of rewind operation (G), the position of a recording tape in the tape cassette conforms to the position (B) of the recording tape in the unused tape cassette.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus and a recording / reproducing method for recording / reproducing information signals using a tape cassette.

[0002]

2. Description of the Related Art Conventionally, for example, a video tape recorder has been proposed as a recording / reproducing apparatus for recording / reproducing information signals using a tape cassette. This video tape recorder uses a tape cassette in which a pair of supply reels and take-up reels are housed in a cassette, and the start end of the recording tape wound around the supply reels is attached to the hub of the take-up reels. Record and play back signals.

In such a video tape recorder, when the tape cassette is mounted, the recording tape wound on the take-up reel side is pulled out to the outside of the cassette and the recording tape is placed on a predetermined tape path. Perform the loading operation to position. The recording tape thus completed with the loading operation is, on the outer side of the cassette, with respect to the outer peripheral surface of the rotary drum of the rotary head device.
It is spirally wound over a predetermined angle range (lap angle).

As described above, the recording tape is wound around the outer peripheral surface of the rotating drum at a predetermined wrap angle, the recording tape is fed at a predetermined speed, and the rotating drum is rotated. The head chip attached to the rotary drum is slidably contacted with the recording tape in a direction having a predetermined inclination with respect to the side edge of the recording tape, and recording / reproduction is performed on the recording tape by so-called helical scanning. .

When the tape cassette is taken out from the recording / reproducing apparatus, a rewinding operation is performed in which the recording tape is completely rewound to the supply reel side, and the recording tape pulled out to the outside of the cassette by the loading operation is placed in the cassette. Then, the eject operation to eject the tape cassette is performed.

[0006]

By the way, in the recording / reproducing apparatus as described above, when the recording tape is pulled out of the cassette in the loading operation, the recording tape wound on the take-up reel is pulled out. ing.

Therefore, the tape cassette must be in a state where the recording tape of a predetermined length is wound around the take-up reel in the unused state. Therefore, at the stage of manufacturing and shipping such a tape cassette, "preliminary winding" is performed so that the take-up reel winds a recording tape of a predetermined length.

On the other hand, in the tape cassette used in such a recording / reproducing apparatus, the thickness of the recording tape is made as thin as possible in order to increase the recording density. Therefore, in this tape cassette, when the recording tape is left in contact with the tape guide member provided in the cassette for a long time, the recording tape is plastically deformed at that portion (so-called "sleeping"). May occur. Even if an information signal is recorded on a portion of the recording tape where such compositional deformation has occurred, there is a risk that recording may not be performed satisfactorily, and if such plastic deformation occurs on the already recorded portion, then During playback, there is a risk that playback images and playback audio may be disturbed, and playback may not be performed well.

Due to the above-mentioned "preliminary winding", in the unused state of the tape cassette, the tape guide member in the cassette has a portion of the recording tape on which the information signal can be recorded (that is, not the leader tape but the recording medium). It is highly possible that the part) is in contact.

The position at which the recording / reproducing of the information signal is started on the starting end side of the recording tape differs depending on the model of the recording / reproducing apparatus. Therefore, when the device used for recording the information signal and the device used for reproducing the information signal are different types of devices, the head portion of the information signal recorded on the recording tape cannot be reproduced, or It cannot be erased, and the positional relationship between the position where plastic deformation is caused by the tape guide member in the cassette as described above and the position where the recording / reproducing of the information signal is started differs depending on the model.

Further, the position of the recording tape when the ejecting operation is performed after the recording tape is completely rewound on the supply reel side is different depending on the model of the recording / reproducing apparatus. The position where the deformation occurs also differs depending on the model.

As described above, in the conventional recording / reproducing apparatus, the tape guide member in the cassette after the use and the ejection is used for the plastically deformed position of the tape guide member in the cassette in the unused tape cassette. Since the plastic deformation position and the recording / playback start position differ depending on the model of the recording / playback device, recording / playback is performed at the position where plastic deformation has occurred due to the tape guide member in the cassette, or recording has already been performed. There is a risk that plastic deformation will occur due to the tape guide member in the cassette within the region.

Therefore, the present invention has been proposed in view of the above situation, and in the unused tape cassette, the position of the plastic deformation by the tape guide member in the cassette and the information signal are recorded and reproduced. It is an object of the present invention to provide a recording / reproducing apparatus and a recording / reproducing method capable of surely preventing interference with a recording area and performing excellent recording / reproducing of an information signal.

[0014]

In order to solve the above-mentioned problems, in a recording / reproducing apparatus according to the present invention, a pair of supply reel and take-up reel are housed in a cassette and recorded on the supply reel. A recording / reproducing apparatus for recording / reproducing information signals by using a tape cassette whose starting end is attached to a hub of the take-up reel, and rotating the take-up reel to transfer the recording tape to this take-up reel. A winding mechanism that performs a winding operation that causes the supply reel to rotate, a rewind mechanism that performs a rewind operation that causes a supply tape to be wound around the supply reel by rotating the supply reel, and a recording that is wound on a take-up reel. A loading operation in which the tape is pulled out to the outside of the cassette and the recording tape is positioned on a predetermined tape path. Structure, a tape feeding mechanism for feeding and operating the recording tape along the tape path, a recording / reproducing means for recording / reproducing an information signal to / from the recording tape fed and operated by the tape feeding mechanism, and a mechanism for each of these mechanisms and means. And a control means for controlling the operation.

Then, a tape cassette in which a recording tape of a predetermined length is wound up on the take-up reel side in the unused state is mounted, and the control means is wound up on the take-up reel side by the loading mechanism. The recording tape that is pulled out to the outside of the cassette by the loading operation after the recording tape is pulled out to the outside of the cassette to perform the loading operation and the recording tape is rewound to the supply reel side. When ejecting the tape cassette by returning it to the cassette and ejecting the tape cassette, the take-up reel side should be wound with a recording tape of the same length that was wound on the take-up reel side in the unused state of the tape cassette. It is characterized by.

In the recording / reproducing method according to the present invention, a pair of supply reels and take-up reels are housed in a cassette, and the start end of the recording tape wound around the supply reels is a hub of the take-up reels. A recording / reproducing method for recording / reproducing an information signal by using an attached tape cassette, comprising a tape cassette in which a recording tape of a predetermined length is wound in advance on the take-up reel side in an unused state. The recording tape wound on the take-up reel side is pulled out to the outside of the cassette and the recording tape is positioned on a predetermined tape path, and the recording tape is entirely wound on the supply reel side. After the rewinding operation is performed, the recording tape pulled out to the outside of the cassette by the loading operation is When performing the eject operation to return the tape cassette to the inside and eject the tape cassette, let the recording tape of the same length that was wound on the take-up reel side in the unused state of the tape cassette be wound on the take-up reel side. It is characterized by.

Therefore, in the recording / reproducing apparatus and the recording / reproducing method according to the present invention, when the eject operation is performed after the rewinding operation, the position of the recording tape in the tape cassette is the recording tape in the unused tape cassette. Will be the same as the position.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In the recording / reproducing apparatus according to the present invention, as shown in FIG. 1, a pair of supply reels 101 and take-up reels 102 are stored in a cassette (not shown), and a recording tape 103 wound around the supply reels 102 is provided. A recording / reproducing apparatus for recording / reproducing an information signal by using a tape cassette whose starting end is attached to a hub 102a of a take-up reel 102. The recording / reproducing method according to the present invention is executed in this recording / reproducing apparatus. It

This recording / reproducing apparatus, as shown in FIG.
Recording tape 1 by rotating the take-up reel 102
03 is wound on the take-up reel 102, and a winding mechanism 1 for performing a winding operation and a supply reel 101 are rotated to move a recording tape 103 to the supply reel 1.
01, and a recording tape 1 wound on a take-up reel 102.
03 is pulled out to the outside of the cassette to perform a loading operation for positioning this recording tape on a predetermined tape path; a tape feeding mechanism 4 for feeding and operating the recording tape 103 along the tape path; A rotary head device 5 serving as recording / reproducing means for recording / reproducing information signals on / from the recording tape 103 operated by the feeding mechanism 4, and a control circuit 6 serving as control means for controlling the operation of each of these mechanisms and means. It is configured with.

The take-up mechanism 1 comprises a take-up reel 10
It has a reel shaft that engages with the second hub 102a and a reel motor that rotates the reel shaft. The rewinding mechanism 2 includes a reel shaft that engages with the hub 101a of the supply reel 101 and a reel motor that rotates the reel shaft.

As shown in FIG. 1, the loading mechanism 3 has a plurality of tape guides 7 that can be moved. This loading mechanism 3
Moves the tape guides 7 into the cassette of the tape cassette mounted in the recording / reproducing apparatus and is moved toward the outside of the cassette, so that the recording tape 103 in the cassette is moved to the cassette. It is configured to be pulled out to the outside to perform a loading operation.

The tape feeding mechanism 4 comprises a capstan shaft 8 and a pinch roller 9, and the recording tape 10 which has completed the loading operation and is on a predetermined tape path.
3 is sandwiched by the capstan shaft 8 and the pinch roller 9, and is fed. The capstan shaft 8 is rotated at a predetermined constant speed by a capstan motor. The pinch roller 9 is made of a material having elasticity such as rubber, and is rotated while being in contact with the rotating capstan shaft 8 and holds the recording tape 103 in cooperation with the capstan shaft 8.

The rotary head device 5 comprises a rotary drum 10 formed in a cylindrical shape and rotated at a predetermined constant speed, and a head chip attached to the rotary drum 10. The rotary drum 10 is rotationally operated by a drum motor.

When the loading operation by the loading mechanism 3 is completed, the recording tape 103 is spirally wound around the outer peripheral surface of the rotary drum 10 over a predetermined angle range. In this embodiment, the recording tape 10
Angle at which 3 is wrapped around the rotating drum 10 (wrap angle)
Is 184 °.

In this way, the recording tape 103 is wound around the outer peripheral surface of the rotary drum 10 over a predetermined wrap angle, the recording tape 103 is fed at a predetermined speed, and the rotary drum 10 is rotated. As a result, the head chip attached to the rotary drum 10 is slidably contacted with the recording tape 103 in a direction having a predetermined inclination with respect to the side edge of the recording tape 103,
Recording / reproduction is performed on the recording tape 103 by so-called helical scanning.

The recording / reproducing apparatus also includes a tape top sensor including a light emitting section 11 and a light receiving section 12. The light emitting portion 11 of the tape top sensor is arranged at a position intermediate between the supply reel 101 and the take-up reel 102 when the tape cassette is mounted. Then, the light receiving portion 12 of this tape top sensor
Is arranged at a position where the recording tape 103 wound on the take-up reel 102 passes on the optical path where the light emitted from the light emitting unit 11 reaches the light receiving unit 12. The intersection of the optical path from the light emitting unit 11 to the light receiving unit 12 and the recording tape 103, that is, the detection position is located near the outer peripheral edge of the take-up reel 102. The tape top sensor detects a boundary between a transparent leader tape on the starting end side of the recording tape 103 and an opaque recording medium portion following the leader tape. That is, when the tape cassette is mounted and the light receiving unit 12 receives the light from the light emitting unit 11, it is determined that the leader tape is present at the detection position, and the tape cassette is mounted and the light receiving unit is detected. When the light from the light emitting unit 11 is not received at 12,
It is determined that the recording medium portion is present at the detection position.

The tape cassette used in this recording / reproducing measure is in an unused state (after manufacturing, in an unused state) in which a recording tape 103 of a predetermined length is wound up on the take-up reel 102 side in advance. That is, it is in a state of "preliminary winding".

In this embodiment, the tape cassette to be mounted is such that the recording tape 103 wound in advance on the take-up reel 102 side in the unused state has a predetermined length of 100 mm ± 10 mm. Also,
As shown in FIG. 3, the length of the leader tape 103a in the recording tape 103 is 50 mm ± 5 mm from the joining portion of the take-up reel 102 of the recording tape 103 to the hub 102a by the clamper 104. Furthermore, the length of the opaque splicing tape 103c that joins the leader tape 103a and the recording medium portion 103b is determined by the length of the leader tape 103a and the recording medium portion 103b.
It is 7 mm or less from the boundary to the take-up reel 102 side.

In the following description, the joining portion of the recording tape 103 to the hub 102a of the take-up reel 102 is called a full top. The boundary between the leader tape 103a and the splicing tape 103c (that is, the end position of the transparent portion) is called the tape top.

In this embodiment, as shown in FIG. 1, in the unused tape cassette, the point where the starting end side of the recording tape 103 is separated from the recording tape 103 wound around the supply reel 101 is A. , The tape guide member 10 on the supply reel 101 side in the cassette
5, the contact point between the recording tape 103 and the recording tape 103 is E, and the contact point between the tape guide member 106 on the take-up reel 102 side in the cassette and the recording tape 103 is F, and the hub 102a of the take-up reel 102 and the start end portion of the recording tape 103 are connected. When the joining point is D, the length of the recording tape 103 from A to E and F to D (hereinafter referred to as “ABCD”) is 71.3 mm. Also,
When the loading operation is completed, the position where the recording tape 103 and the peripheral surface of the rotating drum 10 contact (the supply reel 101 side) is B, and the position where the recording tape 103 is separated from the peripheral surface of the rotating drum 10 (take-up reel 102).
Side) is C, AB is 42.8 mm, BC is 35
mm, CD is 45.3 mm, ABCD is 123.1 mm
Has become. Further, when the detection position of the tape top sensor is H, HD is 7.6 mm.

In this recording / reproducing apparatus, as shown in FIG. 4, when an unused tape cassette is loaded in step st1, the control circuit controls the loading mechanism to start the loading operation. This loading operation is performed by moving each tape guide 7 of the loading mechanism from the inner side to the outer side of the cassette to pull out the recording tape 103 to the outer side of the cassette. When this loading operation is performed, the supply reel 101 is prevented from rotating, and the recording tape 103, which is “preliminarily wound” on the take-up reel 102, is pulled out to the outside of the cassette.

When the loading operation is completed in step st2, the recording tape 103 forms a predetermined wrap angle (184 °) with respect to the outer peripheral surface of the rotary drum 10 of the rotary head device 5, as shown in FIG. It is wound in a spiral shape. At this time, 51.7 mm of the recording tape 103 is pulled out from the take-up reel 102, as shown in (c) of FIG. In FIG. 5, (a) shows the recording tape 103 pulled out from the take-up reel 102 to the full top,
(B) shows a state in which the recording tape 103 is “preliminarily wound”,
That is, the state of the recording tape 103 in the unused tape cassette is shown.

The length of the "preliminary winding" is 10 from the full top.
0 mm (± 10 mm), the length pulled out from the take-up reel 102 by the loading operation is 51.
Since it is 7 mm, it is still a take-up reel 10.
2 has a recording tape 10 of 48.3 mm (± 10 mm)
3 is left. The length of the leader tape 103a is 50 m
Since it is m (± 5 mm), when the loading operation is completed, the splicing tape 103c or the recording medium portion 103 must be located at the detection position of the tape top sensor.
b is present. That is, if the length from the boundary between the leader tape 103a and the recording medium portion 103b of the splicing tape 103c to the take-up reel 102 side is 7 mm, then 50 mm-48.3 mm-7 mm = -5.3 mm From hub 102a-
The portion up to 5.3 mm (that is, the portion wound around the hub 102a) is the transparent portion. here,
Since the detection position of the tape top sensor is 7.6 mm from the hub 102a of the take-up reel 102,
As shown in (c) of FIG. 5, the take-up reel 10
The opaque portion of the recording tape 103 exists at the detection position of the tape top sensor from 2 to 12.9 mm (rewind).

Next, in step st3 of FIG. 4, rewinding is executed and the tape top is searched by the tape top sensor as shown in (d) of FIG. The amount of rewinding at this time may be as small as 9 mm to 26 mm, when calculation is performed in consideration of the distribution status of errors in the length of the “preliminary winding” from the full top and the length of the leader tape 103a. .

As described above, performing the rewinding operation after completion of the loading operation can be performed in the same mode as performing the rewinding operation for calculating the winding diameter when the tape is loaded midway. it can. That is, in this recording / reproducing apparatus, after the loading operation is completed, the recording tape is rewound to calculate the tape position, and the pulses from the reel sensor are counted. At this time,
When the tape top sensor detects the tape top when rewinding from 9 mm to 26 mm, as described below, it suffices to enter the processing with the tape top as a reference. It means that it is an operation from the middle.

In the case where the respective errors are close to the limit as the length of the "preliminary winding" from the full top becomes shorter and the length of the leader tape 103a becomes longer, the loading operation is performed. There is a possibility that the leader tape 103a (the transparent portion of the recording tape 103) may be present at the detection position of the tape top sensor when the above is completed. In this case, the control circuit feeds the recording tape 103 to the take-up reel 102 side to detect the tape top. And if the tape top is detected,
As will be described below, the processing based on the tape top is started.

When the tape top is detected, the recording tape 103 is wound around the take-up reel 102 in step st4 of FIG. The winding amount at this time is 90 mm with reference to the tape top as shown in (e) of FIG. At this time, step st5 in FIG.
As shown in, it is possible to perform "background erase recording" to deal with the unerased portion of the starting end side portion of the recording medium portion 102b. Upon completion of this winding, the recording tape 10
3 is a position at which recording / reproduction by the rotary head device 5 should be started. At this time, the position at which recording / reproduction is started by the rotary head device 5 is in contact with the tape guide members 105 and 106 in the cassette in the unused tape cassette as shown in (e) of FIG. It is a predetermined position past the position on the recording tape 103, and a position 127.7 mm from the tape top. That is,
As shown in (b) of FIG. 5, there is a possibility that plastic deformation (so-called “sleeping”) may occur at the position where the tape guide members 105 and 106 are in contact with each other in the unused state. As shown in (e) of FIG. 5, the rotary head device 5 is supposed to start recording / reproducing from a position past this plastically deformed portion. Here, the length of the “preliminary winding” from the full top and the leader tape 103a are from the supply reel 101 side (S side sleeping) of the plastically deformed portion to the recording / reproducing start position by the rotary head device 5. 6mm considering the distribution of each error of the length
To 22 mm, the standard value is approximately 17 mm (16.9 mm)
Has become.

Next, in step st6 of FIG.
Recording / reproduction of the recording tape 103 by the rotary head device 5 is started. At this time, the rotary drum 10 is rotated and the recording tape 103 is also fed, and is pulled out from the supply reel 101 and wound on the take-up reel 102.

When the recording / reproducing operation is completed in step st7, the process proceeds to step st8 to execute the rewinding operation. In this rewinding operation, step st
In 9, the tape top sensor is searched for the tape top, and the recording tape 103 is stopped at the position where the tape top comes to the detection position of the tape top sensor as shown in (f) of FIG.

Next, in step st10 of FIG.
Recording tape 1 having the same length as that wound on the take-up reel 102 side in the unused state of the tape cassette 1.
03 is wound on the take-up reel 102 side. That is, here, as shown in (g) of FIG. 5, by recording the recording tape 103 on the 12.9 mm take-up reel 102, recording at the completion of the loading operation shown in (c) of FIG. The position is the same as the position of the tape 103.

Then, the process proceeds to step st11 in FIG.
Perform unloading operation. That is, the loading mechanism is returned to the state before the loading operation, and the recording tape 103 pulled out to the outside of the cassette is taken up by the take-up reel 102 and stored in the cassette. At this time, the recording tape 103 is in the same position as when the unused tape cassette is mounted in the recording / reproducing apparatus, as shown in (b) of FIG. Therefore,
In this state, the eject operation for taking out the tape cassette from the recording / reproducing apparatus can be executed, or
It is also possible to return to the step st1 of step 1 and execute the recording / reproducing operation again starting from the loading operation.

In the tape cassette in which the eject operation has been executed, the recording tape is stored in the cassette at the same position as the unused tape cassette, and the tape in the cassette is unused in the unused tape cassette. The tape guide member in the cassette comes into contact with the same position as the plastically deformed portion of the guide member. Therefore, the plastically deformed portion of the tape guide member in the cassette does not increase.

As described above, in the recording / reproducing apparatus and the recording / reproducing method executed in the recording / reproducing apparatus, the length of the leader tape from the full top (50 mm ±
5mm), the length of the "preliminary winding amount" from the full top (1
00 mm ± 10 mm), the detection position (7.6 mm) of the tape top sensor from the hub of the take-up reel, the recording / reproduction start position (12) of valid data from the tape top.
7.7 mm), the processing method after the loading operation of the tape cassette and the processing method when the tape cassette is unloaded after the rewinding operation are specified, and the entire system operates optimally. Compatibility, reliability, and operational agility between recording / reproducing devices of different models can be obtained.

Also in a recording / reproducing apparatus having different tape paths after the loading operation, the amount of the recording tape pulled out during the loading operation, the detection position of the tape top sensor, and the rewinding amount for detecting the tape top after the loading operation is completed. If the feed amount of the recording tape to the recording / playback start position and the feed amount of the recording tape after rewinding and before the eject operation are defined as described above, the same operation can be realized for the tape cassette. it can.

[0046]

As described above, in the recording / reproducing apparatus and the recording / reproducing method according to the present invention, when the eject operation is performed after the rewinding operation, the position of the recording tape in the tape cassette is in the unused state. It is the same as the position of the recording tape in the tape cassette.

Therefore, in the recording / reproducing apparatus and the recording / reproducing method, the positions where the plastic deformation (sleeping) due to the tape guide member in the cassette is increased in the recording tape of the tape cassette which has been ejected after use. However, once the positional relationship between the position where this plastic deformation occurs and the region where recording and reproduction is performed is defined, these positional relationships will not change.

That is, according to the present invention, in the unused tape cassette, the interference between the position of plastic deformation by the tape guide member in the cassette and the area where the information signal is recorded and reproduced is surely prevented, and the information signal It is possible to provide a recording / reproducing apparatus and a recording / reproducing method capable of performing favorable recording / reproducing.

[Brief description of drawings]

FIG. 1 is a plan view showing a configuration of a main part of a recording / reproducing apparatus according to the present invention which executes a recording / reproducing method according to the present invention.

FIG. 2 is a block diagram showing a configuration of the recording / reproducing apparatus.

FIG. 3 is a side view showing a positional relationship between a take-up reel and a recording tape of a tape cassette used in the recording / reproducing apparatus.

FIG. 4 is a flowchart showing an operation of the recording / reproducing apparatus.

FIG. 5 is a graph showing the position of a recording tape in the recording / reproducing apparatus.

[Explanation of symbols]

1 winding mechanism, 2 rewinding mechanism, 3 loading mechanism, 4 tape feeding mechanism, 5 rotary head device, 6 control circuit, 7 tape guide, 8 capstan shaft, 9
Pinch roller, 10 rotating drum

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Claims (8)

[Claims] 1. A tape cassette in which a pair of supply reels and take-up reels are housed in a cassette, and a start end of a recording tape wound around the supply reels is attached to a hub of the take-up reels. A recording / reproducing apparatus for recording / reproducing an information signal, comprising a winding mechanism for rotating the take-up reel to wind the recording tape on the take-up reel, and a supply reel for rotating the supply reel. A rewinding mechanism that operates to rewind the recording tape around the supply reel, and a recording tape that is wound around the take-up reel to the outside of the cassette to set the recording tape at a predetermined position. Loading mechanism to perform the loading operation that is located on the tape path of the recording tape, and to feed the recording tape along the tape path. A tape feeding mechanism to be operated, a recording / reproducing means for recording / reproducing an information signal to / from a recording tape fed by the tape feeding mechanism, and a control means for controlling the operation of each of the above mechanisms and means, A tape cassette in which a recording tape of a predetermined length is wound up on the take-up reel side in the use state is mounted, and the control means is wound up on the take-up reel side by the loading mechanism. The recording tape is pulled out to the outside of the cassette to perform a loading operation, and the recording tape is rewound to the supply reel side. After the rewinding operation is performed, the recording tape is pulled out to the outside of the cassette. When performing the eject operation of returning the recording tape into the cassette and ejecting the tape cassette, In the unused state of Pukasetto the recording tape of the same length as it has been wound on the take-up reel side recording and reproducing apparatus for causing wound onto the take-up reel side. 2. The tape cassette to be mounted is characterized in that a predetermined length of the recording tape wound in advance on the take-up reel side in an unused state is 100 mm ± 10 mm. Recording and reproducing device. 3. A tape in an unused state, wherein the control means winds the recording tape on the take-up reel side by a predetermined length after the loading operation is completed and before the recording / reproducing operation is performed on the recording tape. 2. The recording / reproducing apparatus according to claim 1, wherein recording / reproducing is started by the recording / reproducing means from a predetermined position past the position on the recording tape which was in contact with the tape guide member in the cassette. 4. The distance between the position on the recording tape which was in contact with the tape guide member in the cassette in the unused tape cassette and the position where recording / reproducing is started by the recording / reproducing means is approximately 18 mm. The recording / reproducing apparatus according to claim 3, wherein the recording / reproducing apparatus is provided. 5. A tape cassette in which a pair of supply reels and take-up reels are housed in a cassette, and a start end of a recording tape wound on the supply reels is attached to a hub of the take-up reels. A recording / reproducing method for recording / reproducing an information signal, wherein a tape cassette in which a recording tape of a predetermined length is wound in advance on the take-up reel side in an unused state is used. A loading operation is performed in which the wound recording tape is pulled out to the outside of the cassette to position the recording tape on a predetermined tape path, and a rewinding operation is performed to rewind the recording tape to the supply reel side. After being executed, the recording tape pulled out to the outside of the cassette by the loading operation is put in the cassette. When performing the eject operation of returning and ejecting the tape cassette, the recording tape having the same length as that wound on the take-up reel side in the unused state of the tape cassette is wound on the take-up reel side. Recording and playback method. 6. The tape cassette to be used is characterized in that, in a non-used state, a predetermined length of a recording tape wound in advance on the take-up reel side is 100 mm ± 10 mm. Recording / playback method described. 7. After the loading operation is completed, before the recording / reproducing operation is performed on the recording tape, the recording tape is wound on the take-up reel side by a predetermined length so that the tape cassette in an unused state is stored in the cassette. 6. The recording / reproducing method according to claim 5, wherein recording / reproducing is started from a predetermined position past a position on the recording tape which was in contact with the tape guide member. 8. In the unused tape cassette, the position between the position on the recording tape which was in contact with the tape guide member in the cassette and the position at which recording / reproduction is started is approximately 1
The recording / reproducing method according to claim 7, wherein the recording / reproducing method is 8 mm.