JPH08315553A - Disc reproduction device - Google Patents

Abstract

PURPOSE: To obtain a disc reproduction unit in which a user can perform heading by an easy and convenient method. CONSTITUTION: A disc 1 is a video CD on which track numbers, entry points, scene numbers and an elapsed time are recorded. Priorities are then set sequentially for the data and the heading operation is performed sequentially starting from data having highest priority, while judging whether the data is present or not, upon depression of a SKIP key 9c or 9d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus such as a video CD player.

[0002]

2. Description of the Related Art Conventionally, in a video CD, in addition to recording image and sound data as recording signals, track numbers, entry points, scene numbers and elapsed time are recorded.

Track number search, entry point search, and scene number search are available as the means for searching the video CD. Currently, however, a video CD player equipped with an entry point search key and a scene number search key in the operating section is not used. Most of the searches are track searches based on the number of times the SKIP (REV, FWD) key is pressed.

As a result, a manual search is performed in which the pickups are operated by independent operation keys or the pickup is sent to a place arbitrarily desired by the user while the SKIP (FWD, REV) key is kept pressed.

[0005]

However, in the program area of the above-mentioned video CD, there is a disc (for example, movie software) without a track number. Therefore, when searching for such discs,
Of course, track search is not possible, whether you search with the entry point search key or the scene number key,
Alternatively, there is a problem that the manual search key must be used to go to a desired location on the disc.

This causes a problem that the user does not know which search means should be used for the search. In addition, the manual search alone has a problem in that the operation time is longer than that of finding the track number and the operability is very poor, and the user is forced to perform a troublesome operation.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a disc reproducing apparatus which allows a user to easily find a head by a simple method.

[0008]

In order to achieve the above object, a disk reproducing apparatus of the present invention is, in claim 1, a pickup for reproducing information from an optically reproducible disk, and the pickup is a disk for reproducing the information. Moving means for moving in the radial direction, reading means for reading position information from the output of the pickup, and control means for controlling the moving means according to the position information in response to the output of the reading means and an operation from the outside. The control means sets a predetermined priority order to a plurality of types of position information that can be recorded on the disc, uses the reproduced position information according to the priority order, and controls the drive means to record information. The feature is that the cue is performed.

According to a second aspect of the present invention, the plurality of types of position information are a track number, an entry point, a scene number and an elapsed time.

According to a third aspect of the present invention, the disc is a video CD, and the control means determines the presence or absence of the track number in the program area of the disc.
When there is the track number, control is performed to reproduce the information of the track numbers before and after the one or more discs, and when there is no track number, the presence or absence of the entry point in the program area is determined. When there is, the control is performed to reproduce the information of the entry points before and after one or more of the disc being played. When there is no entry point, the presence or absence of the scene number is determined, and when there is the scene number, Information about the scene numbers before and after the one or more discs being played back is controlled to be played back. When there is no scene number, a predetermined time is added to or subtracted from the elapsed time of the playing disc. It is characterized by controlling to move the reproducing means to a place. That.

[0011]

With the above structure, in the first aspect, the information is reproduced by the pickup from the optically reproducible disc,
The pickup is moved in the radial direction of the disk by the moving means, the position information is read from the output of the pickup by the reading means, and the moving means is moved according to the position information according to the output of the reading means and the operation from the outside. The control means controls the plurality of types of position information that can be recorded on the disc, and uses the reproduced position information in accordance with the priority order to control the driving means to control the recording information. Since the cueing is performed, the cueing is always possible even if there is no position information with a high priority.

Further, in claim 2, since the plural types of position information are a track number, an entry point, a scene number and an elapsed time, all the video CDs are recorded.
However, even if there is no position information with a high priority, it is always possible to find the beginning.

According to a third aspect of the present invention, the disc is a video CD, and the control means determines the presence / absence of the track number in the program area of the disc,
When there is the track number, control is performed to reproduce the information of the track numbers before and after the one or more discs, and when there is no track number, it is determined whether or not the entry point exists in the program area. If there is, the control is performed to reproduce the information of the entry points before and after the one or more discs being played. When there is no entry point, the presence or absence of the scene number is determined. Information about the scene numbers before and after the one or more discs being played back is controlled to be played back. When there is no scene number, a predetermined time is added to or subtracted from the elapsed time of the playing disc. Since it controls to move the reproducing means to a place,
Even if there is no high-priority position information for all video CDs, it is possible to find the beginning.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and operation of a disk reproducing apparatus of the present invention will be described below with reference to the drawings. FIG.
FIG. 3 is a schematic block diagram showing the configuration of a disc reproducing apparatus according to an embodiment of the present invention. In the figure, 1 is a disc (video CD), 2 is a spindle motor, 3 is a pickup, 4 is a slide motor, 5 is a read signal processing circuit,
6 is a servo circuit, 7 is a microcomputer, 8 is a display circuit, and 9 is an operation circuit.

The operation of the disc reproducing apparatus of the present invention constructed as above will be described below. The disc 1 is placed below the disc 1 placed in the storage position during playback.
It has a pickup 3 for reading the recording signal of.

The pickup 3 includes a slide motor 4
The disk 1 moves in the radial direction of the disk 1 to follow the recording signal of the disk 1, and the disk 1 is driven by the spindle motor 2 to rotate. There is.

Further, the present video CD player inputs the read signal A which is the recording signal of the disk 1 read by the pickup 3 and performs a predetermined process, the spindle motor 2 and the pickup 3. And a servo circuit 6 for controlling the operation of the slide motor 4, a microcomputer 7 as a control means for controlling the servo circuit 6, and a display circuit 8 having a display unit for displaying the track of the disk 1 or the elapsed time. It has an operation section and an operation circuit 9 for transmitting an input operation to the operation section to the microcomputer 7.

The read signal processing circuit 5 demodulates the data of the read signal A from the pickup 3 into an image and a sound, and outputs a signal B to the video device together with a track in the read signal A or a signal of elapsed time by a micro. It is designed to output to the computer 7.

The servo circuit 6 is a microcomputer 7
When the servo control signal D from is input, the operation control signals E, F, and G corresponding thereto are output to the spindle motor 2, the pickup 3, and the slide motor 4, respectively.

When the microcomputer 7 receives a microcomputer control signal from the operation circuit 9 according to an input operation to the operation section of the operation circuit 9, it outputs a servo control signal D according to the input operation to the servo circuit 6. When the signal C from the read signal processing circuit 5 is input, the track of this signal C,
Alternatively, the display control signal I for controlling the display of the elapsed time is output to the display circuit 8.

When the display control signal I from the microcomputer 7 is input to the display circuit 8, the track or elapsed time of the disk 1 is displayed on the display section.

The operation circuit 9 has an operation section provided on the front panel of the present video CD player. This operation unit includes a PLAY key 9a, a STOP key 9b, a REV / S
A KIP key 9c and a FWD / SKIP key 9d are provided, and by turning on these operation keys individually, a predetermined microcomputer control signal is output to the microcomputer 7.

In the above structure, the PL of the operation section of the operation circuit 9 is used during the reproducing operation of the present video CD player.
When the AY key 9a is turned on, a microcomputer control signal is output to the microcomputer 7, and the servo circuit 6 controls the operation of the spindle motor 2, the pickup 3 and the slide motor 4 by the operation control signals E, F, G, and the disc. Play 1.

The pickup 3 reads the recording signal of the disk 1 as a read signal A, the read signal A is demodulated by the read signal processing circuit 5, and the video signal B is output to a video device (not shown). , Signal C is output to the microcomputer 7.

The video device reproduces the video signal B as an image and a sound. On the other hand, the microcomputer 7
The signal C is converted into a display control signal I, and this display control signal I is output to the display circuit 8. Then, the display circuit 8 which receives the display control signal I displays the track number and the elapsed time on the display unit.

Next, an example in which the FWD / SKIP key 9d of the operation circuit 9 is turned on in order to sequentially feed the video CD player will be described. The operation at this time is shown in FIG.
Is shown in the flowchart. At this time, the operation circuit 9 outputs a microcomputer control signal H to the microcomputer 7, and in step # 5, it is determined whether or not there is a track in the program area of the disc.

If there is a track, in step # 10, the servo control signal D is output to the servo circuit 6 so as to reproduce the recording signal of the track immediately after the track being reproduced.

On the contrary, when there is no track number, it is determined in step # 15 whether or not there is an entry point. If there are entry points, step # 2
At 0, the servo control signal D is output to the servo circuit 6 so as to reproduce the entry point recording signal after the position being reproduced.

On the contrary, if there is no entry point, it is determined in step # 25 whether or not there is a scene number.
If there is a scene number, in step # 30, the servo control signal D is output to the servo circuit 6 so as to reproduce the recording signal of the scene number after the position being reproduced.

On the other hand, when there is no scene number, the servo circuit 6 is servo-controlled so as to reproduce the recording signal of the elapsed time obtained by adding a predetermined time x minutes to the elapsed time of the disc being reproduced in step # 35. Send signal D. With this series of operations, it is possible to perform forward cueing only by pressing the FWD / SKIP key.

In the above description, one track,
Although the entry point and the scene number have been described, there may be a plurality of them. Further, the FWD / SKIP key is turned on and the REV / SKIP key is turned on, which are essentially the same, only in the opposite directions. The reading means in claim 1 corresponds to the read signal processing circuit 5, the moving means corresponds to the slide motor 4, and the control means corresponds to the microcomputer 7. Besides, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made.

[0032]

As described above, according to the disc reproducing apparatus of the present invention, in claim 1, the information is reproduced from the optically reproducible disc by the pickup, and the pickup is moved by the moving means in the radial direction of the disc. Position information is read by the reading means from the output of the pickup, and the control means controls the moving means according to the position information in accordance with the output of the reading means and an operation from the outside, and A predetermined priority order is set for a plurality of types of position information that can be recorded, the reproduced position information is used in accordance with the priority order, and the drive information is controlled to locate the recorded information. Even if there is no position information, it is always possible to find the beginning and the user can easily forward or reverse by using only the SKIP (REV, FWD) keys. That it can be, there is an effect that cue is made possible by a simple method.

Further, in claim 2, since the plural types of position information are a track number, an entry point, a scene number and an elapsed time, all the video CDs are recorded.
Even if there is no high-priority position information, it is possible to find a cue without fail, which is easy for the user.
There is an effect that it is possible to perform the cueing by a simple method that the forward or reverse feeding can be performed only with the P (REV, FWD) key.

According to a third aspect of the present invention, the disc is a video CD, and the control means determines the presence or absence of the track number in the program area of the disc,
When there is the track number, control is performed to reproduce the information of the track numbers before and after the one or more discs, and when there is no track number, it is determined whether or not the entry point exists in the program area. When there is, the control is performed to reproduce the information of the entry points before and after the one or more discs being reproduced. When there is no entry point, the presence or absence of the scene number is determined. Information about the scene numbers before and after the one or more discs being played back is controlled to be played back. When there is no scene number, a predetermined time is added to or subtracted from the elapsed time of the playing disc. Since it controls to move the reproducing means to a place,
Even if there is no high-priority position information for all video CDs, it is always possible to find the position, and it is easy for the user to perform forward or reverse feed with only the SKIP (REV, FWD) keys. There is an effect that it is possible to cue by the method.

[Brief description of drawings]

FIG. 1 is a block schematic diagram showing a configuration of a disc reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the disc reproducing apparatus in the embodiment.

[Explanation of symbols]

 1 disk 2 spindle motor 3 pickup 4 slide motor 5 read signal processing circuit 6 servo circuit 7 microcomputer 8 display circuit 9 operation circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G11B 27/00 D 27/10 A

Claims (3)

[Claims] 1. A pickup for reproducing information from an optically reproducible disc, a moving means for moving the pickup in a radial direction of the disc, a reading means for reading position information from an output of the pickup, and a reading means for reading the positional information. Control means for controlling the moving means according to the position information according to the output of the means and an operation from the outside, and the control means has a predetermined priority to a plurality of types of position information that can be recorded on the disc. A disc reproducing apparatus, characterized in that a ranking is set, reproduced position information is used in accordance with the priority, and the driving means is controlled to locate the recorded information. 2. The disc reproducing apparatus according to claim 1, wherein the plurality of types of position information are a track number, an entry point, a scene number, and an elapsed time. 3. The disc is a video CD, and the control means determines the presence or absence of the track number in a program area of the disc, and if there is the track number, the discs before and after one or more of the discs. It controls to reproduce the information of the track number, judges the presence or absence of the entry point in the program area when there is no track number, and when there is the entry point, the entries before and after one or more of the disc being reproduced. It controls to reproduce the point information, and when there is no entry point, the presence or absence of the scene number is determined, and when there is the scene number, the information of the scene number before and after one or more of the disc being reproduced. Control to play, and if there is no scene number, 3. The reproducing means is controlled so as to move to a position where a predetermined time is added to or subtracted from the elapsed time of the disc being reproduced.
The disk reproducing device described in.