JPH02223086A - Optical disk player - Google Patents

Abstract

PURPOSE:To display information such as music number of plural tracks, playing time, playing start time and accumulated time by outputting management information for plural tracks and resulting information from application of prescribed calculation to disk management information as a video signal. CONSTITUTION:Management information and information subject to prescribed processing are stored in a text memory 15 which reads out and stores the management information written in advance on an optical disk with a management information read means 12 and provided with the pattern constitution of a display device 110 able to display a text data accordingly. Then the information is read and converted into the video signal and outputted by a video signal conversion means 18. Thus, the display device such as a television screen is used to display the track information by plural tracks simultaneously as each track information such as track number, track playing time, playing accumulated time and information obtained by applying a prescribed playing to the management information.

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION The present invention relates to an optical disc player, such as a laser vision player or a compact disc video player, mainly for playing back music and images.

2. Description of the Related Art As a conventional optical disc player, for example, a multi-laser player is currently widely available on the market. This multi-laser player has compact discs (hereinafter referred to as CDs), laser vigilon discs (LV),
This is an optical disc player that plays back an optical disc on which audio and video signals are recorded, such as a compact disc video (CDV).

FIG. 3 shows a block diagram of this conventional optical disc player, in which 1 is a compact disc as an example of an optical disc, 2 is a TOC reading circuit for reading management information called TOC recorded on the compact disc 1, and 3 is a TOC reading circuit for reading management information called TOC recorded on the compact disc 1. The management information is processed and written into the memory 4. When necessary, the display panel drive device 5 is controlled to drive the display panel 8.
This is a central processing circuit for displaying images. Further, 4 is a memory for storing management information, 5 is a display panel driving device, and 6 is a display panel for displaying necessary information.

In the conventional optical disc player configured as described above, when the management information is read out, the central processing circuit 3 organizes it, stores it in the memory 4, and calculates the number of songs and the total time of all tracks from the information. indicate. When playback begins again, the previously displayed information disappears and the currently playing song number and playing time are displayed. In other words, the time information for one song was displayed at the same time.

Problems to be Solved by the Invention However, in the above configuration, multiple display panels with a limited narrow area are used, so various information cannot be obtained without switching the display mode.
If you don't know the total time of the disc once playback starts, you can't know the playing time of other songs. Another problem is that it is not possible to display information about multiple songs at the same time, and it is impossible to know any information about other songs while playing.

In view of the above, the present invention provides an optical disc player that can simultaneously display information such as the song number, playing time, playing start time, and cumulative time of multiple tracks on the display device using a display device such as a TV set. The purpose is to provide.

Means for Solving the Problems The invention of claim 1 of the present application provides a management information reading means for reading disc management information from an optical disc on which images and sounds are recorded, and a management information reading means for temporarily storing part or all of the disc management information. an information storage means, a text memory provided two-dimensionally corresponding to the configuration of the screen, and arithmetic processing for writing the management information and information obtained by performing predetermined calculations and processing on the management information into the text memory. means and
and a video signal conversion means for converting character data written in the text memory into a video signal, and outputs management information of a plurality of tracks and information obtained by performing a predetermined calculation on the management information as a video signal. It is characterized by:

Further, the invention of claim 2 of the present application, in addition to the invention of claim 1, provides that the optical disc is an optical disc on which a video signal is recorded, and the video signal read from the optical disc and the output signal of the video signal conversion means are combined or switched. a superimposing means for converting into a video signal, and displays the management information of a plurality of tracks, information obtained by performing a predetermined calculation on the management information, and the video signal read from the optical disc by combining or switching the same. This is a characteristic feature.

According to the present invention having such features, management information written in advance on the optical disk is read out and stored by the management information reading means, and is provided corresponding to the screen configuration of the display device capable of displaying text data. The management information and information subjected to predetermined processing are stored in the text memory. The information is then read out, converted into a video signal, and output. By displaying this signal, information on multiple tracks can be confirmed at a glance.

Embodiment FIG. 1 shows a block diagram of an optical disc player in a first embodiment of the present invention. In Figure 1,
The optical disc reading device 11 is a device that reads signals recorded on an optical disc. In this embodiment, the optical disc is an optical disc on which a video signal is recorded. 12 is a management information reading device for extracting management information from the signal read by the optical disc reading device 11; 13 is a central processing circuit; 14 is a temporary storage memory for temporarily recording management information;
15 is a text memory, 16 is a text memory management circuit, 17 is a character generator that generates a character pattern from a character code, and 18 is a character generator 17
19 is a superimpose circuit that switches or synthesizes two video signals; and 110 is a television series.

The operation of the optical disc player of this embodiment configured as described above will be explained below.

Figure 2 shows the TV series 1 using this optical disc player.
10 is a display example diagram.

The management information of the optical disc read by the management information reading device 12 is organized by the central processing circuit 13 and stored in the temporary storage memory 14.

The central processing circuit 13 converts the management information stored in the temporary storage memory 14 and information obtained by calculation based on this management information into character codes, and writes them into the text memory 14 in consideration of the display format. For example, if an optical disc stores the track number 21 shown in FIG. 2, the start time of each track, and the total performance time as management information, then based on that data, the performance time of each track is 22° and the time at which each track starts playing. The remaining time 24 and the like are calculated and written into the text memory 14.

Character information written in the text memory 14 is read out by a text memory management circuit 16 and converted into a character pattern by a character generator 17. The character pattern information is converted into a video signal by a video signal conversion circuit 18 and sent to a superimpose circuit 19. The superimpose circuit 19 switches or combines the video signal read from the optical disc by the optical disc reading device 11 and the video signal from the video signal conversion circuit 18, outputs it as a single video signal, and displays it on the television siron 110. do.

As described above, according to this embodiment, management information regarding a plurality of tracks recorded on a disc can be displayed on the television at once, and the entire information on the optical disc can be confirmed at a glance.

The information displayed on the television may be such that the information of each track of the optical disk is displayed on each - line as shown in FIG.
In 1), information for one track may be displayed, and track information for m tracks may be displayed simultaneously.

In this embodiment, the display device 11 is a television set, but it may also be a liquid crystal display or a character display. Further, in this embodiment, character codes are written in the text memory 15 and character patterns are displayed by the character generator 17, but it goes without saying that the characters may also be displayed using a bitmap graphic memory.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described in detail, the track number, the playing time of the track, the cumulative playing time, and even the management information obtained as management information of the disc using a display device such as a television screen. Since track information for a plurality of tracks can be simultaneously displayed using information obtained by performing predetermined calculations as each track information, it is possible to grasp the auxiliary information of the entire disc with the minus eye, which has a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an optical disc player according to a first embodiment of the present invention, FIG. 2 is an example of a display displayed on a television according to the same embodiment, and FIG. 3 is a block diagram of a conventional optical disc player. . 11... Optical disk reading device, 12... Management information reading circuit, 13... Central processing circuit, 1
4... - Time storage memory, 15... Text memory, 16... Text memory management circuit, 17...
・Character generator, 18... Video signal conversion circuit, 19... Superimpose circuit, 11
0...Television cod, 21...Track number (
song number), 22...playing time, 23...track start time, 24...remaining time.

Claims (4)

[Claims] (1) Management information reading means for reading disc management information from an optical disc on which images and audio are recorded, management information storage means for temporarily storing part or all of the disc management information, and two parts corresponding to the screen configuration. a text memory provided dimensionally; a calculation processing means for writing the management information and information after performing predetermined calculations and processing on the management information into the text memory; and character data written in the text memory. 1. An optical disc player comprising: a video signal converting means for converting into a video signal, and outputting management information of a plurality of tracks and information obtained by performing predetermined calculations on the management information as a video signal. (2) The optical disc is an optical disc on which a video signal is recorded, and includes superimposing means for combining or switching the video signal read from the optical disc and the output signal of the video signal converting means to convert it into a video signal, 2. The optical disc player according to claim 1, wherein management information of a plurality of tracks, information obtained by performing predetermined calculations on the management information, and a video signal read from the optical disc are combined or switched for display. (3) The optical disc player according to claim 1, wherein the optical disc player outputs a video signal that displays information regarding one track in one row and simultaneously displays track information of N tracks in N rows. (4) Display information regarding one track in N consecutive rows (N>1), and output a video signal that simultaneously displays track information for M tracks in M×N rows (M>0). The optical disc player according to claim 1, characterized in that: