JPH06275056A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To attain setting of an index to a user's required position in a reproducing device of a reproduction exclusive optical disk. CONSTITUTION:The index dealing with the required position in the reproducing signal of the disk is stored in a nonvolatile index memoey 3 by the operation of a remote controller 4. The program searching operation, the sectional reproduction, etc., are attained by the stored index. The disk is identified by the total recording time and the number of chapters of the disk. The index is stored in a specified storage area on the identified disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproduction apparatus for reproduction-only optical discs such as video discs and digital audio discs, and in particular, makes it possible to achieve good disc access.

[0002]

2. Description of the Related Art Optical discs such as video discs are usually indexed by software producers and divided into several chapters.

[0003]

However, it is hard to say that the above-mentioned index by the software maker has been put in for the sake of convenience, and it is not enough for the user's preference. If you want to see it, you have to search for the scene by picture search (fast forward of the screen), or make a note of the time code of the scene in advance and enter the code, which is not too complicated.

Therefore, an object of the present invention is to provide a disc reproducing apparatus capable of handling an index which can be designated by a user and which indicates an arbitrary position on the disc.

[0005]

In order to achieve the above object, the disk reproducing apparatus according to the first invention of the present invention comprises:
A non-volatile memory (3) for storing disc identification information for identifying the disc and position information indicating a desired position on the disc in a storage area designated by the disc identification information. To do.

A disk reproducing apparatus according to a second invention of the present invention is the disk reproducing apparatus according to the first invention,
The disc identification information includes at least the total recording time.

A disk reproducing apparatus according to a third invention of the present invention is the disk reproducing apparatus according to the first invention,
It is characterized in that a predetermined disc reproducing operation is controlled by using the disc identification information and the position information stored in the index memory.

A disk reproducing apparatus according to a fourth invention of the present invention is the disk reproducing apparatus according to the third invention,
The predetermined disc reproducing operation is a cueing operation using position information.

A disc reproducing apparatus according to a fifth aspect of the present invention is the disc reproducing apparatus according to the third aspect,
It is characterized in that desired two points on the disc are designated by using the position information, and a section defined by these two points is selectively reproduced.

[0010]

Since the disc reproducing apparatus of the present invention has the index memory, the user can set the index at a desired position of the disc even if the disc is a reproduction-only disc. You can take action. Further, it is possible to perform a program reproducing operation using the index, such as designating two desired points on the disc with an index and reproducing a section defined by the two points.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the internal structure of an embodiment in which the present invention is applied to a video disc reproducing apparatus.

Reference numeral 1 is a control signal reading device for reading signals from the disc and controlling the disc. Three
Is a non-volatile index memory for storing disc identification information. The disk signal reading device 1 and the index memory 3 are connected to the microcomputer 2,
The user sends a signal to the microcomputer 2 using the remote controller 4,
Operate the disc player. First, when an optical video disc (hereinafter, simply referred to as a disc) is inserted into the disc reproducing device, the control signal reading device 1 reads the total recording time, the number of chapters, etc. of the disc. The control signal reading device 1 also reads a time code indicating a position on the disc, and this time code is also sent to the microcomputer 2.

The contents of the index memory 3 are as shown in FIG. 3, and the information of the index that has already been input is recorded therein. In the figure, a blank part is a part in which index information is not recorded.
Further, FIG. 3 shows an example in which 64 indexes can be recorded on each of 128 disks.

The microcomputer 2 compares the information on the total recording time and the number of chapters with the contents of the index memory 3,
If it matches the information already recorded, the disc number is recognized. If the total recording time and the number of chapters do not match the already recorded information, the disc is recognized as a new disc and a disc number which has not been used conventionally is assigned to the disc.

For example, now the total recording time of the disc is 57
When the number of chapters is 6 minutes and 23 seconds, it does not apply to any of the already registered disk numbers 1 to 3 in FIG. Therefore, this disk is registered as disk number 4. That is, the total recording time and the number of chapters are written in the address of the disc number 4.

Indexing is performed by the remote controller 4. When the index driving switch 11 of the remote controller 4 of FIG. 2 is pressed in the reproduction mode or the still mode, the microcomputer 2 issues a command to the control signal reading device 1 to read the time code, and the time code read there is stored in the index memory 3 Recorded in.

For example, if there are three scenes in which the user wants to input an index, pressing the index drive switch 11 in each scene, the time code corresponding to each scene, in this example, 5 minutes 07
Seconds, 13 minutes 51 seconds, and 27 minutes 26 seconds can be stored as index information (indexes 1 to 3) of the disk number 4 of the index memory 3.

The index is read in the same manner as the normal chapter search (13 in FIG. 2) by using the index search switch 12 in FIG.
That is, the index search switch 12 moves the reproduction position to the immediately following index or the immediately preceding index at a high speed, and then the index reproduction switch 12 performs the normal reproduction operation (that is, the cue operation).

It is also possible to select and delete an unnecessary index, and if the index deletion switch 14 is pressed within a few seconds (for example, 5 seconds) after reading the index, the index is deleted. It

As another example of the reproducing operation using the index, for example, two indexes can be designated and the section between these two indexes can be repeatedly reproduced. Also, the user can input and display character information together with the index. Further, the still image information of the scene corresponding to the index can be compression-encoded and stored, and the still image information can be displayed by designating the index.

The present invention can be applied not only to a video disc, but also to a playback device for a playback-only optical disc such as a digital audio disc.

[0022]

According to the present invention, the user can freely insert an index into his or her favorite scene even with a read-only optical disk, so that it is more troublesome to find the scene he or she wants to see. Can be greatly simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a diagram of a remote controller as an example of means for operating the disc reproducing apparatus of the present invention.

FIG. 3 is a diagram showing an example of contents of an index memory 3 in an embodiment of the present invention.

[Explanation of symbols]

 3 Index memory 11 Index drive switch 12 Index search switch 14 Index erase switch

Claims (5)

[Claims] 1. A disc reproducing apparatus for reproducing a read-only optical disc, wherein disc identifying information for identifying a disc and position information indicating a desired position on the disc are designated by the disc identifying information. A disk reproducing apparatus having a non-volatile memory for storing in a storage area. 2. The disc reproducing apparatus according to claim 1, wherein the disc identification information includes at least a total recording time. 3. The disc reproducing apparatus according to claim 1, wherein a predetermined disc reproducing operation is controlled by using the disc identification information and the position information stored in the index memory. 4. The disc reproducing apparatus according to claim 3, wherein the predetermined disc reproducing operation is a cueing operation using the position information. 5. The position information is used to specify two desired points on the disc and selectively reproduce a section defined by the desired two points. Item 3. The disc reproducing apparatus according to Item 3.