JPS63241768A - Cd-rom - Google Patents

Abstract

PURPOSE:To observe stored picture information with a player with comparatively simple constitution, by forming a data block of fixed length on a DC-ROM corresponding to the change of an address equivalent to the fixed length. CONSTITUTION:In an index area 41 formed in the center part of the CD-ROM, an index 20 (program name) is stored. And on each of the addresses (m), m+2 x,...,m+x,m+3x,..., a picture name data program is recorded respectively. The length of the block of picture plane data is decided as the fixed length corresponding to an odd address and an even address. Therefore, the programs (a), (b), and (c) are recorded in data areas 42, 43, and 44, respectively.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention creates a certain rule for the data format recorded on a CD-ROM, more specifically, a CD-ROM player with a relatively simple configuration. The present invention relates to a CD-ROM that allows programs such as games to be displayed on the display screen of a television receiver or the like even when using a CD-ROM.

[Conventional technology]

As is well known, compact discs (hereinafter referred to as CDs) have recently become popular among music fans. This CD has approximately one hour of music recorded on one side, and when played in a designated CD player, an optical head reads the recorded side, and by applying various electronic circuit processing, it is compared to the original recorded in the studio. This allows you to enjoy music with approximately the same sound quality.

On the other hand, the recording capacity of the above-mentioned CD is extremely large,
One side of a CD is approximately 540 when converted to a floppy disk.
It is possible to record data for one sheet.

This CD was created by focusing on the large recording capacity of such a CD.
It has been proposed to use ROM as a ROM (Read Only Memory). For example, data that requires a relatively large memory capacity, such as the image data of the game record of a Go master match, can be recorded on this CD-ROM and played back on the screen of a television receiver, etc. using an appropriate playback device. It was designed to do so.

Here, an example of a system configuration for reproducing a conventional CD-ROM will be explained with reference to FIG.

As shown in the figure, a CD-ROM player 101 is provided with an insertion slot 102 for loading a CD, and this CD-ROM player 101 is a control main body that constitutes a personal computer (hereinafter referred to as a personal computer) device 100. 103.

This control body 103 includes a display section 104 made of a cathode ray tube or the like, and a floppy disk drive device 10.
5 and a JIS full keyboard 106. CD-
A floppy disk 10 to which a ROM player 101 is connected and further stores software for the CD-ROM.
7 is written into the control main body 103 via the drive device 105.

Next, when a CD-ROM is loaded into the CD-ROM player 101 and a predetermined key is pressed on the full keyboard 106, the game record of a Go master match, a scene from a movie, etc., for example, is displayed on the display screen 104a of the display unit 104. .

[Problem to be solved]

As described above, in order to enjoy the recorded contents of a conventional CD-ROM, a relatively large system such as not only the CD-ROM player 101 but also the personal computer device 100 is required.

The reason why we needed such a relatively large system was C.
A D-ROM has an "index area" and a "recording area," but the optical head constantly moves back and forth between the index area and the recording area in order to read the necessary data from the recording area. This is because complex software processing is required. In other words, there was a problem with the software processing and hardware processing required for random data access.

On the other hand, some data recorded on a CD-ROM does not require random access and does not require conventional file management.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention aims to solve the above-mentioned problem.
A D-ROM in which each program is configured along with an index recording a program number for identifying a plurality of programs, the start address of a block constituting each program, and the total number of blocks constituting each program. The data format is configured such that the data block length of each block is a fixed length, and the start address of each data block is changed in a constant direction by the fixed length.

[Effect]

Since the recording format of the CD-ROM of the present invention is configured as described above, when the optical head reads out the recorded contents of the CD-ROM, for example, necessary data is read from the index recorded inside. Then, as the head sequentially moves outward, the necessary data is automatically read from the data area, and there is no need for the optical head to frequently go back and forth between the index and data area.

Therefore, CD-Rs that have such a recording format
If OM is used, it becomes possible to enjoy image information stored in a CD-ROM even with a CD player with a relatively simple configuration.

〔Example〕

Hereinafter, the CD-ROM of the present invention will be explained based on the illustrated embodiment.

FIGS. 1(a), (b), and (c) are CDs of the present invention.
- It is a conceptual diagram showing the recording format of ROM, and it is a second
The figure is a conceptual diagram of an index area of a CD-ROM and a program area in which each program is recorded.

As shown in FIGS. 1(a), (b), (c) and FIG. 2, an index area 41 formed at the center of the CD-ROM has an index 20 as shown in FIG. is stored. That is, in this index 20, at the position of "code a", a program number is recorded, which indicates that, for example, the game record of the Go master match of "Masaki Takemiya 9-dan vs. Master Hideo Otake" is recorded, and the position of "code a" is recorded. At the position "n", the program name indicating that it is a "Meijin match between Masaki Takemiya 9-dan and Master Hideo Otake" is recorded, and at the position "code m" the start address of this "program a" is recorded. The above "program a" is located at the "code α" position.
The total number of program blocks that make up the program is recorded.

Then, as shown in Figure 1 (a), at address m, the first screen data of program a (i.e., Takemiya 9-dan vs. Otake Meijin's master match) is displayed as the first move of the previous number, Takemiya Masaki 9-dan. screen data is recorded.

The length of the block of screen data for this trick is fixed, and is fixed at [x byte J].

Next, at the address rm+xJ, the first move of Master Hideo Otake, who is a transferr, is recorded as screen data, and the length of this screen data is also fixed length x by as mentioned above.
It is te.

Similarly, screen data of Masaki Takemiya's 9-dan technique is recorded at address rm+2xJ, and this data also has a fixed length of x bytes.

Similarly, odd-numbered addresses (m, m+2x, m
For +4x,...
+x, m+3 x, m+5 x, ・・・・・・・・・
・), each move made by Master Otake is recorded as screen data.

In this way, the screen data is stored on the CD-ROM.

If the Takemiya vs. Otake match ends in 200 moves, then program a will be configured with "200" data blocks.

That is, in FIG. 2, the first data area 42 of the CD-ROM 40 has recorded the program a for the Takemiya vs. Otake match, and similarly, the second data area 43 has recorded the program a for the Takyo Kakuhoninbo vs. Hashimoto match. It is assumed that program b for Utabe 9-dan's Honinbo match is recorded, and screen data for the shogi match (program C) is recorded in the third data area 44.

As described above, a large number of chess games (programs a, b, c, . . . old, etc.) are recorded in one CD-ROM 40.

Next, a third CD-ROM player loaded with a CD-ROM having the recording format configured as described above is installed.
This will be explained with reference to the drawings and FIG.

As shown in FIG. 3, the CD-ROM player 30 is connected to the television receiver 11 by a video cable 22. As shown in FIG.

The CD-ROM player 30 has a CD-ROM on the front side.
A reverse switch 12 for reversing the optical head (not shown) for M, a time switch 13 used to determine the display time for displaying one screen on the television receiver 11, and a time switch 13 for determining the display time for displaying one screen on the television receiver 11; and a forward switch 14 that sends the optical head in the forward direction.

A stop switch 15 is provided to stop the rotation of the CD-ROM.

An insertion slot 21 for loading a CD-ROM is formed above the stop switch 15, etc., and a display section 16 consisting of a liquid crystal panel or the like is formed to the right of this insertion slot 21.

Numeric keys 17 are arranged in a horizontal line below the display section 16, various control switches 19 are provided below the numeric keys 17, and a power switch 18 is provided on the right side of the display section 16. It is being

Next, the internal block configuration of the CD-ROM player 30 will be explained based on FIG. 4.

As shown in FIG. 4, the CD-ROM player 30
- It is composed of a ROM player section and a video signal generation section.

That is, the CD-ROM 40 is chucked to the output shaft of a spindle motor 24, and an optical head 25 is disposed along the lower surface (recording surface) of the CD-ROM 40. This optical head 25 is moved in the radial direction by a thread feed motor 26. will be moved to

Recorded data obtained through the optical head 25 is amplified by an RF amplifier 27 and CD-decoded by a digital signal processing section 29.

On the other hand, the signal obtained from the RF amplifier 27 is sent to the servo signal processing section 28, and based on the output data from the servo signal processing section 28, the optical head 25 and the motor 26 are
are each servo-controlled and rotationally driven.

The signal processed by the digital signal processing section 29 is stored in the RAM
32 and is also sent to the CPU system control section 31.

Further, the signal obtained from the digital signal processing section 29 is sent to the digital signal processing section 33, where it is decoded into a CD-ROM. Then, the data decoded from the CD-ROM is sent to the RAM 34 where it is temporarily stored, and also sent to the CPU system control section 31.

This CPU system control section 31 includes the reverse feed switch 14. Stop switch 15. A numeric keypad 17 or the like is connected to the device, and the device is configured to receive data input by the user.

The signal output from the digital signal processing section 33 is sent to the video RAM 35 and also to the CPU VRAM control section 36.

The data stored in the video RAM 35 as a video signal is sent via the video controller section 37 from the output terminal 38 to the television receiver 11 (see FIG. 3) as a display output.

Next, in the configuration of the CD-ROM player 30, television receiver 11, etc. shown in FIG. 3, a CD-ROM containing a plurality of programs as shown in FIG.
The operation when applying M40 will be described based on the flowchart shown in FIG. 5.6.7.

First, insert the CD-ROM 40 into the insertion slot 21 of the CD-ROM player 30, and perform the prescribed operations to display menu a (Attack vs. Otake) and menu on the screen 11a of the television receiver 11, as shown in FIG. b (commercial vs. Hashimoto), menu C (...................................................) is displayed.

Next, when the user selects program a, which is the battle between military officers and Otake, the top screen of the program (for example, the title screen displaying the battle between military officers and Otake) is searched.

Next, by operating the time switch 13 and numeric keypad 17, the timer is set to, for example, 10 seconds for the length displayed on the TV screen, and this "10" is the CD
-Displayed on the display section 16 of the ROM player 30.

Then, if no operation is performed, the next display page to be displayed on the screen is calculated, and in the case of sequential forwarding as shown in FIG. 7, the next address is calculated. When the target address is found, the next data (block 1 in 1st (a)) is input to the video RAM 35.

Below, if there is no key human effort during the process, see Figure 1 (
The data shown in a) is sequentially displayed on the display screen. That is, in this case, the data at address m is the 1st technique of the military officer 9th dan, the data at address m+X is the data of Meijin Otake's 1st technique, and the data at address m+2x is the data of the 2nd technique of the military officer 9th dan. In this way, the moves made by the military attaché and Otake are sequentially displayed on the display screen for 10 seconds each.

Further, suppose that the display screen advances one after another as described above, and for example, the address reaches rm+3xJ. At this time,
When the reverse switch 12 is pressed, the next address is calculated as shown in FIG. 7, and the previous data (that is, the data corresponding to address m + 'l x) is displayed on the display screen. .

Furthermore, if you get tired of the battle between military officers and Otake recorded in the first area 42 of the CD-ROM 40, press "2" on the numeric keypad 17 and the program b recorded in the second data area 43 will be displayed. The commercial match between Honinbo and Hashimoto Utabe Kudan, which is equivalent to , will be displayed on the display screen.

In this case as well, the game records are sequentially displayed in the same manner as described above. Furthermore, if you wish to go backwards during that time, the previous screen will be displayed on the display screen in the same manner as described above.

In this embodiment, the case of Go game records is shown, but the present invention is not limited to game records, but can be applied to any screen data in which one data block is fixed and displayed sequentially at regular intervals.

〔effect〕

According to the present invention, fixed-length data blocks are configured on the CD-ROM in response to changes in addresses corresponding to the fixed length, so the optical head simply reads them out sequentially without performing complicated random access. The required screen can be displayed on the television receiver.

Furthermore, a CD-ROM player to which this CD-ROM is applied can have a relatively simple structure.

[Brief explanation of drawings]

FIG. 1 (a), (b), and (C) are CD-Rs of the present invention.
A conceptual diagram showing the recording format of OM, FIG. 2 is a conceptual diagram showing the CD-ROM of the present invention, and FIG. 3 is a conceptual diagram showing the recording format of the present invention (7) C.
A connection diagram when a CD-ROM player that uses D-ROM is connected to a television receiver, Figure 4 is a CD-ROM player.
Block configuration diagram of OM player, Figure 5 shows CD-ROM
6 and 7 are detailed flowcharts showing details of the general flowchart, and FIG. 8 is a conceptual diagram of a system configuration used to drive a conventional CD-ROM player. 10...Program a1 20...Index, 30...CD-ROM player, 40...CD-ROM. 100...PC device. Applicant NEC Home Electronics Co., Ltd. Agent Patent Attorney Masu 1) Takeo M: Arokuhum A/L first stamp address change: Arokulam O block number 1 Figure 12 Mouth

Claims (1)

[Claims] 1. A CD-ROM storing programs to be displayed on a display unit of a television receiver, etc., comprising a program number for identifying a plurality of programs and blocks constituting each program. The data block length of the blocks that make up each program is set to be a fixed length, along with an index that records the start address of the program and the total number of blocks that make up each program. A CD characterized in that the data format is structured such that the data format changes gradually in a fixed direction.
ROM.