JP2004145927A - Recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To give comfortable operation feeling to a user by shortening the time until the moving chassis is unloaded to a position where a cassette and a disk are loaded for photographing and reproducing and the time until the moving chassis is loaded after photographing and reproducing are finished and the cassette and the disk are removed. <P>SOLUTION: A recording and reproducing device has a fixed chassis 2, a moving chassis 1 which houses a recording and reproducing medium 4 and which can move with respect to the fixed chassis 2 between a first position where recording and reproducing can be performed on the recording and reproducing medium 4 and a second position where the recording and reproducing medium can be loaded or unloaded, a discriminating means 8 discriminating presence/no presence of the recording and reproducing medium 4, and an adjusting means adjusting moving speed of the moving chassis 1 on the basis of discrimination by the discriminating means 8. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a recording / reproducing apparatus using a band-shaped magnetic recording / reproducing medium (tape medium) such as a VTR or a DAT or a disk-shaped disk medium such as a DVD or a CD.
[0002]
[Prior art]
The configuration of a general recording / reproducing apparatus will be described with reference to FIG. 6 and FIG. 7, taking a recording / reproducing apparatus using a tape medium as an example. FIG. 6 is a plan view of a general recording / reproducing apparatus using a tape medium, and FIG. 7 is a side view of FIG. In order to reduce the size of the recording / reproducing apparatus X, at the time of recording / reproducing, as shown in FIG. 7, a media package (hereinafter, referred to as a “cassette”) 104 has a recording / reproducing device unit (hereinafter, referred to as “cassette”) provided on a fixed chassis 102. (It is called a “rotary drum”.) When the cassette 104 is loaded, the moving chassis 101 is generally moved to a position indicated by a broken line in FIGS. With this configuration, it is possible to reduce the size of a recording / reproducing device such as a video camera device.
[0003]
As shown in FIGS. 6 and 7, after the cassette 104 is loaded into the moving chassis 101, the moving chassis 101 is moved (loaded) in the direction of the rotating drum 103 provided in the fixed chassis 102, and is loaded into the cassette 104. A contained medium (hereinafter referred to as “tape”) 105 is wound around guide posts 107 and a rotating drum 103 provided in a large number on the fixed chassis 102 by a tape guide 106 interlocked with the movement of the movable chassis 101. Attached. Accordingly, recording and reproduction can be performed based on the positional relationship between the cassette 104 and the tape 105 on the moving chassis 101 and the rotating drum 103 on the fixed chassis 102 and the like.
[0004]
When removing the cassette 104, the moving chassis 101 is moved in a direction away from the rotating drum 103 (unloading), and a reel table (not shown) on the moving chassis 101 so that the tape 105 is not loosened during the moving. ), And moves to the position (101a) indicated by the broken line in FIGS.
[0005]
Preferably, the loading speed and the unloading speed are different. At the time of loading, the speed is such that the tape 105 is not scratched when wound around the guide posts 107. At the time of unloading, the reel base winds the tape 105 without damaging the tape. It is set to a speed that can be used.
[0006]
[Problems to be solved by the invention]
By the way, since the loading speed and the unloading speed have the above-mentioned restrictions, it is difficult to further improve the speed. In particular, in a video camera device using the “moving chassis method” for downsizing of the recording / reproducing device, the time during which the moving chassis 101 is unloaded to the position where the cassette 104 is loaded for photographing and reproducing, and the time required for photographing and reproducing. There is a problem that the loading time of the moving chassis 101 is slow after the completion and the removal of the cassette 104. For this reason, there is also a problem that the user is irritated.
[0007]
In a CD device or a DVD device using a disk recording medium (disk medium) such as a compact disk CD or DVD instead of a tape, a pickup unit (hereinafter abbreviated as PU) as a recording / reproducing device has a fixed chassis. The disk media is mounted on a movable tray. At the time of recording / reproducing of the media, the tray is moved to the P.P. When the disc is loaded in the U direction and the disc medium is taken out, the tray protrudes from the fixed chassis to the outside of the device, and the disc can be unloaded. The loading / unloading speed needs to be set to a low speed so that the media placed on the tray does not rattle, and there is a problem that the user is irritated as with the tape device.
[0008]
[Means for Solving the Problems]
According to one aspect of the present invention, a fixed chassis and a recording / reproducing medium are accommodated therein, and a first position at which recording / reproducing by the recording / reproducing medium is possible and the recording / reproducing medium are mounted on or removed from the fixed chassis. A movable chassis capable of being moved between possible second positions, a determining means provided on the movable chassis side, and determining whether or not the recording / reproducing medium is on the movable chassis side; An adjusting means for adjusting the moving speed of the movable chassis based on the determination by the means.
According to the recording / reproducing apparatus, the moving speed can be adjusted depending on the presence or absence of the recording / reproducing medium.
[0009]
It is preferable that the adjusting unit, when it is determined that there is no recording / reproducing medium, increase the moving speed more than when the determining unit determines that the recording / reproducing medium is present. This makes it possible to move the moving chassis faster than the slower moving speed to be considered when there is a medium when there is no medium.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The inventor uses a conventionally used “start sensor” and “end sensor” for the purpose of detecting the tape start end and the tape end to determine whether the cassette is housed in the chassis. If it is determined that there is no cassette, the applied voltage of the loading motor provided to operate the moving chassis is controlled, and the voltage is applied more than when it is determined that the cassette is present. By raising the voltage, the number of rotations of the loading motor was increased, and the moving speed of the moving chassis was increased.
[0011]
In the case of a device using a disk medium, the P.P. After determining the presence / absence of the medium by the U output and the disk detecting means installed on the tray, if it is determined that there is no disk, the applied voltage of the loading motor for operating the moving chassis is set higher than when the disk is present. I came up with the idea of increasing the number of rotations of the motor when moving the chassis and increasing the speed of the moving chassis.
[0012]
Based on the above considerations, the recording and reproducing devices according to the first and second embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a recording / reproducing apparatus according to a first embodiment of the present invention, and the second is a side view of FIG. As shown in FIG. 1, in a recording / reproducing apparatus A using a tape, a start sensor 8-a and an end sensor 8-b are respectively provided on the moving chassis 1, and similarly, provided on the moving chassis 1. Light emitted from the light emitting element 9 fitted into the hole 4-a formed inside the cassette 4 corresponds to the positions of the start sensor 8-a and the end sensor 8-b, and is formed on the side surface of the cassette 4. Optical paths 10a and 10b directed in a certain direction are formed by (not shown).
[0013]
Since the tape 5 in the cassette 4 is wound so as to cross (block) the optical paths 10a and 10b, when the cassette 4 is not inserted, the light from the light emitting element 9 emits the start sensor 8-a. , Approximately the same amount of light is incident on the end sensor 8-b, and the amount of light received by the sensor is substantially the same. Further, when the cassette 4 is inserted, the start sensor 8-a for detecting the start of the tape is applied to the transparent portion 5a having a light transmittance of 65% or more at the start of the tape, and the end sensor 8-b. However, since the light is applied to the magnetic tape portion having a light transmittance of 5% or less, a high light amount is obtained in the start sensor 8-a and a low light amount is obtained in the end sensor 8-b.
[0014]
On the other hand, when the end of the tape is reached, a low light amount is obtained from the start sensor 8-a, and a high light amount is obtained from the end sensor 8-b. In addition, when neither the start end nor the end end, both the start sensor 8-a and the end sensor 8-b can obtain a low light amount. Therefore, the presence or absence of the cassette 4 can be detected by a change in the amount of light. This change in light quantity can be clearly determined by actually converting the light quantity into an electric signal intensity by an electronic circuit (not shown).
[0015]
In addition, since the light emitting element 9, the start sensor 8-a, and the end sensor 8-b are provided in the moving chassis 1, the presence or absence of the cassette 4 can be determined regardless of the position of the moving chassis 1. It is also possible to determine the loading direction and the unloading direction.
[0016]
Therefore, information on the presence or absence of the cassette is sent to a microcomputer (microcomputer) IC (not shown) provided in the electronic circuit, and a driver circuit (not shown) of the loading motor 11 for operating the moving chassis 1 is controlled. When the cassette 4 is not present, the voltage applied to the motor 11 is made higher than when the cassette is present, so that the rotation speed of the motor 11 is increased and the loading / unloading speed of the moving chassis 1 is controlled to be faster.
[0017]
As described above, according to the recording / reproducing apparatus according to the present embodiment, by determining whether or not a tape cassette exists in the chassis, the loading and unloading speeds of the moving chassis when the tape cassette is present can be determined. It can be controlled to increase the loading and unloading speed of the moving chassis when there is no tape cassette. This makes it possible to advance the time that the moving chassis 1 moves to the position where the cassette 4 is loaded for photographing or reproduction, which is the time that was set late despite the absence of the tape. Similarly, after the photographing and reproduction are completed and the cassette 4 is removed, the time for housing the moving chassis 1 in the recording / reproducing apparatus can be shortened. Thereby, when the tape 5 is present, the moving chassis is moved at a speed that does not damage the tape 5 at the time of loading or unloading, and when the tape 5 is not present, By increasing the moving speed of the moving chassis, there is an advantage that a comfortable operation feeling is given to the user.
[0018]
Next, a recording / reproducing apparatus according to a second embodiment of the present invention will be described with reference to the drawings, taking a device using a disk medium as an example. FIGS. 3 to 5 are diagrams showing loading / unloading operations in the case of a device using a disk medium. As shown in FIGS. 3 to 5, the tray 32 shown in FIG. 3 can be taken out by loading and unloading the tray 32 onto the fixed chassis 34 in the housing 33. 5 on the fixed chassis 34 shown in FIG. Recording and reproduction of the disk medium 35 by U36 can be performed.
[0019]
The operation of the general fixed chassis 34 will be described. As shown in FIG. 4, the fixed chassis 34 is retracted until the tray 32 is loaded, and when the tray 32 is loaded, the disk media 35 is clamped as shown in FIG. Done. The tray 32 is normally in a loading state (a state shown in FIG. 5).
[0020]
Next, it is determined by the disk detecting means 37 provided on the tray 32 whether or not the disk media 35 is present on the tray 32 shown in FIG. In the case of the disk medium 35, unlike the tape, the disk detecting means 37 is not housed in a cassette, and thus does not require the light emitting element described in the tape device (the first embodiment). It is also possible to use a light receiving element that can only determine the presence or absence of extraneous light. Of course, the presence or absence of the disk medium 35 may be determined by arranging a light emitting element and using the reflected light of the disk medium 35. The information obtained by the disk detecting means 37 is transmitted to the microcomputer (not shown) of the above-described internal circuit, and performs the same operation.
[0021]
That is, when it is determined that there is no disk medium 35 after determining whether the disk medium 35 is present, control is performed so that the applied voltage of the loading motor that operates the moving tray is higher than that when it is determined that there is a disk. Accordingly, the rotation speed of the motor for moving the tray 32 can be increased, and the movement of the tray 32 can be accelerated.
[0022]
Incidentally, even when the disk detecting means 37 cannot be provided on the tray 32 due to the cost reduction or downsizing of the device, the P.T. By operating the U36, the presence or absence of the disk medium 35 can be detected. Therefore, P. U. The presence / absence of the disk medium 35 can be detected by the reference numeral 36, and at least the unloading speed can be controlled. That is, when the disk medium 35 is in the device, the P.D. When the U36 is operated and, for example, the reflected light from the medium 35 is obtained, it is determined that the medium is present by a microcomputer (not shown) of a circuit provided in the apparatus, and the tray drive motor (not shown) is operated. The unloading speed of the tray 32 is reduced by controlling the drive circuit (not shown) to reduce the rotation speed of the tray drive motor. If it is determined that the disk medium 35 is not in the device, the reverse operation is performed.
[0023]
Although the embodiments have been described above, the present invention is not limited to these examples, and it goes without saying that various modifications are possible. For example, in the present embodiment, an apparatus for recording and reproducing a tape medium or a disk medium has been described. However, the present invention can be applied to an electronic device having a recording and reproducing function added to a display device such as a liquid crystal television. Further, the recording / playback medium is not limited to a disk medium or a tape medium, but can be applied to an electronic device of a medium type.
[0024]
【The invention's effect】
As described above, in the recording / reproducing apparatus using the “moving chassis method” for downsizing the device, the moving chassis unloads to the position where a cassette or a disc is loaded for photographing or reproducing. After taking / reproducing is completed and the cassette or disc is removed, the time required for loading the moving chassis can be shortened to give the user a comfortable operation feeling.
[Brief description of the drawings]
FIG. 1 is a plan view of a recording / reproducing apparatus according to a first embodiment of the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is a side view of a recording / reproducing apparatus according to a second embodiment of the present invention, showing an operation of loading or unloading a tray.
FIG. 4 is a side view of a recording / reproducing apparatus according to a second embodiment of the present invention, showing a state where a fixed chassis is retracted.
FIG. 5 is a side view of a recording / reproducing apparatus according to a second embodiment of the present invention, showing a state where a tray is loaded, a disk medium is clamped, and recording / reproducing is ready.
FIG. 6 is a front view of a general recording / reproducing apparatus.
FIG. 7 is a side view of FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Moving chassis, 2 ... Fixed chassis, 4 ... Cassette, 8-a ... Start sensor, 8-b ... End sensor, 9 ... Light emitting element, 10 ... Optical path, 11 ... Loading motor, 32 ... Tray, 35 ... Disk, 36: pickup unit (PU), 37: detecting means.

Claims (7)

A fixed chassis,
Containing a recording / reproducing medium, and moving the fixed chassis between a first position where recording / reproducing by the recording / reproducing medium can be performed and a second position where the recording / reproducing medium can be mounted / removed; A moving chassis that can
Determining means provided on the moving chassis side to determine whether or not the recording / reproducing medium is on the moving chassis side;
A recording / reproducing apparatus comprising: an adjusting unit configured to adjust a moving speed of the movable chassis based on the determination by the determining unit. The adjusting unit performs the adjustment so that the moving speed when the recording / reproducing medium is determined to be absent by the determining unit is faster than the moving speed when the recording / reproducing medium is determined to be present. The recording / reproducing apparatus according to claim 1, wherein: The recording and playback medium is a tape medium,
The determination means is a light emitting unit, and light from the light emitting unit, which is transmitted through a transparent portion provided at the beginning and end of the tape, and transmitted through a recording / reproducing unit other than the beginning and end of the tape. The recording / reproducing apparatus according to claim 1, further comprising: an optical sensor unit configured to detect a light amount difference between the light and the light. The recording and playback medium is a disk medium,
3. The recording / reproducing apparatus according to claim 1, wherein the determination unit includes a disk detection unit provided on the fixed chassis and configured to detect whether a disk is mounted on a disk tray. The recording and playback medium is a disk medium,
3. The recording / reproducing apparatus according to claim 1, wherein a pickup unit that records or reproduces information on the recording / reproducing medium is used as the determination unit. By moving the moving chassis toward the moving chassis on which the media package is mounted and the recording / reproducing device unit provided on the fixed chassis, a medium such as a tape is loaded onto the recording / reproducing device unit, and in the opposite direction. A recording / reproducing or reproducing apparatus having a mechanism for moving a moving chassis to unload a medium,
A recording / reproducing apparatus characterized in that the loading speed and the unloading speed of the moving chassis without the media package are made faster than the loading speed and the unloading speed of the moving chassis with a media package such as a tape cassette. A fixed chassis,
Containing a recording / reproducing medium, and moving the fixed chassis between a first position where recording / reproducing by the recording / reproducing medium can be performed and a second position where the recording / reproducing medium can be mounted / removed; A moving chassis that can
A recording / reproducing apparatus comprising: a determination unit configured to determine presence / absence of the recording / reproducing medium.

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