JPH04258837A - Reproducing device - Google Patents

Abstract

PURPOSE:To rewind a magnetic tape in a short time by providing a high speed rewinding switch in the vicinity of a shuttle switch for performing variable speed reproducing from slow reproducing to fast forward picture search and from reverse slow reproducing to rewinding picture search by rotating in the forward direction and in the reverse direction respectively. CONSTITUTION:The high speed rewinding switch 14 is disposed underneath a mark position L on the left side of the vicinity of the shuttle switch 11 of a ring shape for making a change from the slow reproducing to the fast forward picture search or from the reverse slow reproducing to the rewinding picture search by rotating in the forward or reverse direction from a base position S on a front panel 3.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] This invention is a method for converting images into normal 7 to 1
A VTR (video tape recorder) that has a picture search function that plays back at about 5 times the speed, so-called skip viewing.
etc., and related to playback devices.

0002

2. Description of the Related Art For example, a VTR (playback device) having a picture search function is known. This is shown in Figure 6,
To explain concretely with reference to FIG. 7, reference numeral 50 in FIG.
This is a TR, and a display section 53 is arranged in the center of a front panel 52 on the front side of a VTR main body 51. A cassette insertion slot 54 that is opened and closed by a cassette lid 55 is provided on the left side of the display section 53 of the front panel 52, and a rewind (REW) operation switch that displays operation details is provided below the display section 53. ) button 56a, play (
PLAY) button 56b, fast forward (FF) button 56c
, a stop button 56d, a pause button 56e, a low-speed playback button 56f, etc. are arranged.

[0003] In this VTR 50, various operations are executed corresponding to the buttons 56a to 56f as operation switches, and the fast forward button is pressed during playback (and during pause) when the video is output to the monitor screen. When the button 56c is pressed, a fast-forward picture search can be performed only while the button is pressed, and when the rewind button 56a is pressed, a rewind picture search can be performed only while the button is pressed. Therefore, by using the picture search functions of fast forward picture search and rewind picture search, it is possible to quickly find a desired video scene or skip over unnecessary video scenes.

[0004] Also, the display section 5 of the front panel 52
A ring-shaped shuttle switch 57 is rotatably arranged on the right side of 3, and by rotating the shuttle switch 57 to the left or right during playback (and pause), the above-mentioned fast forward picture search and rewind can also be performed. It is now possible to perform a picture search. That is, the shuttle switch 57 changes the playback speed in accordance with its rotation angle. As shown in FIG. 7, for example, if the shuttle switch 57 is sequentially rotated in the right direction (positive direction) from the center reference position S to the right mark position R, low-speed playback (for example, 1/5 reproduction)
→ Constant speed playback (standard playback) → High speed playback (for example, 15x fast forward picture search) can be performed, and the shuttle switch 57 can be moved leftward (reverse direction) from the center reference position S to the left mark position L. By rotating sequentially, you can perform low-speed reverse playback (for example, 1/5 reverse slow playback) → constant-speed reverse playback (standard reverse playback) → high-speed reverse playback (for example, 15x rewind picture search) It looks like this. In addition, in FIG. 6, numeral 58 is a power switch;
9 is a cassette eject button.

[0005]

However, in the conventional VTR 50, the shuttle switch 5 for variable speed playback is
7, if you want to cancel the rewind picture search and suddenly rewind the magnetic tape, you must press the rewind button 56a, which is located away from the shuttle switch 57. However, the operation was complicated. Further, since the speed of rewinding the magnetic tape using the rewind button 56a is approximately the same as the speed of rewinding picture search, it took time to rewind the magnetic tape. Therefore, it is an object of the present invention to provide a playback device that can improve the operability of operation switches and move a recording medium at high speed.

[0006]

[Means for Solving the Problem] A first operation switch for continuously variable control of the moving speed of a recording medium is provided so as to be slidable in forward and reverse directions away from a predetermined reference position,
In the playback device in which the moving speed of the recording medium is variable in the forward and reverse directions, the recording medium is moved to at least one of the positions near each position where the first operation switch slides in the forward and reverse directions. A second operation switch is separately provided to control the speed to the highest speed.

[0007]

[Operation] A second operation switch that controls the speed of movement of the recording medium to the highest speed is installed near at least one of the positions where the first operation switch that changes the speed of movement of the recording medium slides in the forward and reverse directions. Since it is arranged separately, the second operation switch can be operated very easily after operating the first operation switch, and the moving time when moving the recording medium can be significantly shortened.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In FIG. 1, 1 is a VTR (playback device),
It reproduces video information recorded on a magnetic tape (recording medium) 10. Approximately in the center of the front panel 3 of the VTR body (apparatus body) 2 of this VTR 1 is a display section 4.
are arranged, and the display section 4 of the front panel 3
A cassette insertion slot 5 that is opened and closed by a cassette lid 6 is provided on the left side of the cassette. Further, below the cassette insertion slot 5 of the front panel 3, operation switches with operation contents displayed include a rewind button 7a, a play button 7b, a fast forward button 7c, a stop button 7d, a pause button 7e, and a low speed play button. 7f etc. are arranged respectively. When each of these buttons 7a to 7f is pressed, each of the buttons 7a to 7
Various operations of the VTR 1 are executed in response to f, and
If the fast-forward button 7c is pressed during playback by pressing the play button 7b (or during pause by pressing the pause button 7e), a fast-forward picture search is performed only while the fast-forward button 7c is held down. In addition, when the rewind button 7a is pressed, a rewind picture search can be performed only while the rewind button 7a is held down.

[0009] Furthermore, on the left end side of the front panel 3,
A cassette eject button 8 and a power switch 9 are arranged at the bottom.

Further, on the right side of the display section 4 of the front panel 3, there is a ring-shaped shuttle switch for continuously variable control of the running speed of the magnetic tape 10 via a control circuit 30 shown in FIG. 2 for reproduction at variable speeds. (First operation switch) 1
1 is rotatably arranged. This shuttle switch 1
1 is rotated to the left or right during playback (pause) of the VTR 1, the rotational position is detected by the rotational position detection circuit 31, and based on the detection signal of this circuit position detection circuit 31, the microcomputer ( (hereinafter referred to as microcomputer) 32,
The rotational speeds of the rotary drum motor 35 and capstan motor 36 are varied through the amplifier drivers 33 and 34 for variable speed reproduction. That is, when this shuttle switch 11 is sequentially rotated in the right direction (positive direction) from the center reference position S to the right mark position R, low-speed playback (for example, 1/5 times the speed in the state shown in FIG. 4(a)) slow playback) → constant speed playback (standard playback) → high speed playback (Figure 4(b)
), the state changes to, for example, a 15x fast-forward picture search), and the video signal processing circuit 38 outputs a reproduced video signal for the fast-forward picture search to the monitor connection terminal 39. Furthermore, when the shuttle switch 11 is sequentially rotated in the left direction (reverse direction) from the center reference position S to the left mark position L, low-speed reverse playback (for example, 1/5 in the state shown in FIG. 5(a)) Double reverse slow playback) → Constant speed reverse playback (standard reverse playback) → High speed reverse playback (Figure 5 (
In the state shown in b), for example, a 15x rewind picture search is performed, and the reverse playback video signal of the rewind picture search is sent from the video signal processing circuit 38 to the monitor connection terminal 39.
It is now output to . Then, on a monitor (not shown) connected to this monitor connection terminal 39, the reproduced video and the reversely reproduced video of each picture search are displayed.

A recess 11a for positioning is formed in the center of the upper part of the shuttle switch 11, and when the shuttle switch 11 is released from the rotating state during each picture search, a spring or the like (not shown) is activated. The shuttle switch 11 is automatically returned to its original position by the return means, and the shuttle switch 11 is returned to the reference position S of the front panel 3.
The recessed portion 11a is adapted to fit therein. Further, both side portions 11b, 11b of the shuttle switch 11 are integrally molded with a slight protrusion so that they can be easily gripped by hand.

Furthermore, a regeneration switch 12 and a stop switch 13 are provided inside the ring-shaped shuttle switch 11 above and below the half, respectively, and are integrated with the shuttle switch 11. This playback switch 1
2 consists of a semicircular plate-shaped operation button 12a and a tact switch 12b, as shown in FIG.
When the button a is pressed, the tact switch 12b rotates the rotary drum motor 35 and capstan motor 36 via the microcomputer 32, etc., thereby placing the VTR 1 in a playback mode. Further, as shown in FIG. 2, the stop switch 13 consists of an inverted semicircular plate-shaped operation button 13a and a tact switch 13b.
When pressed, the tact switch 13b causes the rotation of the rotary drum motor 35 and capstan motor 36 to be stopped via the microcomputer 32, etc., thereby stopping operations such as reproduction of the VTR 1.

A high-speed rewind switch (second operation switch) 1 is located near the left side of the shuttle switch 11 below the mark position L on the left side of the front panel 3.
4 are arranged. As shown in FIG. 2, this high-speed rewind switch 14 includes an operation button 14a and a tact switch 1.
4b, and when this operation button 14a is pressed, a motor (none of which is shown) that rotates the reel stand rotates at high speed, which is even faster than the rewind picture search speed (15 times) by the shuttle switch 11. The magnetic tape 10 is instantly rewound at a high speed (for example, 30 times). Furthermore, below the high-speed rewind switch 14 on the front panel 3, a temporary stop button 15 is provided as an operation switch. This pause button 15 allows the running of the magnetic tape 10 to be temporarily stopped during playback.

According to the VTR 1 of the above embodiment, when the fast-forward button 7c is pressed in the same way as in the conventional case during the playback mode in which the playback button 7b of the front panel 3 is turned on (or during a pause during playback), the fast-forward is started. The fast forward picture search state is entered only while the button 7c is held down, and when the rewind button 7a is pushed, the rewind picture search state is entered only while the rewind button 7a is held down. Therefore, by searching each picture, it is possible to quickly find a desired video scene or skip over unnecessary video scenes.

A picture search can also be performed by rotating the shuttle switch 11 on the right side of the front panel 3. At this time, even if the operation button 12a of the playback switch 12 in the shuttle switch 11 is pressed, the VTR 1
can be put into play mode. To explain variable speed reproduction using this shuttle switch 11, from a state where the recess 11a of the shuttle switch 11 is located at the central reference position S as shown in FIG. If you rotate it a little to the right, it will go into slow playback mode, and if you rotate it further to the right, it will go into standard playback mode. Further, as shown in FIG. 4(b), when the shuttle switch 11 is rotated clockwise until the recess 11a matches the mark position R and this state is maintained, a fast-forward picture search state is entered.

Furthermore, the recess 11 of the shuttle switch 11
When the shuttle switch 11 is slightly rotated to the left as shown in FIG. 5(a) from the state in which a is located at the central reference position S, the reverse slow playback state is entered, and the shuttle switch 11 is further rotated to the left. and becomes the standard reverse playback state. Further, as shown in FIG. 5(b), the shuttle switch 11
When the recess 11a is rotated counterclockwise to a position where it aligns with the mark position L and this state is maintained, a rewind picture search state is entered.

In this way, by rotating the shuttle switch 11 to the left until the concave portion 11a of the shuttle switch 11 aligns with the mark position L on the left side and maintaining this state, the rewind picture search can be easily performed. However, if you want to rewind the magnetic tape 10 faster,
By pressing the operation button 14a of the high-speed rewind switch 14 located immediately below the mark position L on the front panel 3, the magnetic tape 10 can be rewound at a faster speed than the rewind picture search described above. 1
0 rewind time can be significantly shortened. Also,
If you wish to pause, you can do so by pressing the pause button 15 located just below the high speed rewind switch 14.

Furthermore, each button 7 as an operation switch is provided below the cassette insertion slot 5 of the front panel 3.
In addition to a to 7f, a regeneration switch 12 and a stop switch 13, which have different functions from the shuttle switch 11, are placed at the top and bottom of the ring-shaped shuttle switch 11, respectively, so that the shuttle switch 11 has a frequency of use. The regeneration switch 12 and the stop switch 13, which have high performance, can be compactly integrated, and the shuttle switch 11 can be made multifunctional and downsized. Furthermore, when using the shuttle switch 11, the playback and stop operations can be performed by pressing the playback switch 12 and stop switch 13 on the shuttle switch 11 side as well.
Very convenient and easy to use. Furthermore, the operation button 12a of the playback switch 12 and the operation button 13a of the stop switch 13 are each formed into a semicircular plate shape and are exposed on the upper and lower sides of the entire surface of the shuttle switch 11, so that each switch 12, 13 operation buttons 12a
, 13a can be made as wide as possible, and operability can be further improved.

According to the above embodiment, a playback-only VTR having a picture search function was described as a playback device, but the present invention is also applicable to a remote control commander used for a VTR capable of recording and playing back or a VTR having a picture search function. It may also be applied to a laser disc player. Furthermore, in the embodiment,
A high-speed rewind switch is provided only on the left side of the shuttle switch on the front panel of the VTR, but a high-speed fast forward switch is provided only on the other right side of the shuttle switch, or a high-speed fast forward switch is provided on both the left and right sides of the shuttle switch. A rewind switch and a high-speed fast forward switch may be provided respectively.

[0020]

As described above, according to the reproducing apparatus of the present invention, the first operating switch for changing the moving speed of the recording medium is slid in the forward and reverse directions, and the recording medium is Since the second operation switch for controlling the moving speed of the medium to the highest speed is separately provided, the second operation switch can be operated extremely easily after operating the first operation switch. By operating this second operation switch, the magnetic medium can be moved at high speed, and the moving time can be significantly shortened.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of a VTR according to an embodiment of the present invention.

FIG. 2 is a circuit diagram of a control circuit used in the VTR.

FIG. 3 is an explanatory front view of the main parts of the front panel of the VTR.

FIG. 4(a) is an explanatory diagram of the main part of the front panel during low-speed reproduction, and FIG. 4(b) is an explanatory diagram of the main part of the front panel during high-speed reproduction.

FIG. 5(a) is an explanatory diagram of the main part of the front panel during low-speed reverse playback, and FIG. 5(b) is an explanatory diagram of the main part of the front panel during high-speed reverse playback.

FIG. 6 is an overall perspective view of a conventional VTR.

FIG. 7 is an explanatory diagram of variable speed playback in the conventional VTR.

[Explanation of symbols]

1...VTR (playback device), 10...magnetic tape (recording medium), 11...shuttle switch (first operation switch),
14...High speed rewind switch (second operation switch), S
...Reference position.

Claims (1)

[Claims] 1. A first operation switch for continuously variable control of the moving speed of the recording medium is provided so as to be slidable in the forward and reverse directions away from a predetermined reference position, and In the playback device that can freely change the speed in opposite directions, a second operation switch that controls the moving speed of the recording medium to the highest speed is applied to at least one of the positions near the positions where the first operation switch slides in the forward and reverse directions. A playback device characterized by having a separate operation switch.