JPS62191942A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To physically record information at the time of offering goods and to allow a user electrically add, correct and make up information in use by employing an optical disk with different types of information areas in the same medium. CONSTITUTION:The recording medium 1 is uniformly divided into blocks as some information recording areas in fixed size, and actions to record and reproduce information are made by the block. The 1st and 2nd information recording areas are of a type D sector 10 and a type S sector 20, and information is physically recorded in an initial information part 13. An information volume Srw that on update information part 12 can store, an information volume Sro that the initial information part 13 can store and an information volume Ser that an information recording part 22 can stores satisfy Srw=Sro=Ser. Accordingly the apparent storage information volumes of the type D sector and the type S sector are the same.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an information recording/reproducing device used for secondary storage of computer equipment.

Conventional technology Magnetic tape is a conventional information recording and reproducing device.

There were those that made use of magnetic disks, magnetic drums, and optical disks, and basically the entire medium was ``double-use,'' write-once type, and ``reproduction-only.''

Problems to be Solved by the Invention However, if the entire recording area is composed of recording areas (tracks, sectors) with uniform properties, large amounts of information with predetermined contents such as dictionaries and character fonts ( When providing data) as a product, either all information is electrically recorded (for both recording and playback, write-once type, etc.), or all information is physically recorded for scent playback only.

In other words, for physical recording media, the information recording time at the time of product provision is constant regardless of the amount of information, but there is a problem in that it is impossible for users to add, modify, or supplement information. Yes, information can be added by the user to electrically recorded media.

Although it is possible to correct and supplement, there is a problem that the information recording time at the time of product provision depends on the amount of information.

In view of this, the present invention uses an optical disk that has information areas with different properties within the same medium, and physically records and provides information when providing a product, and when using it, the user can electronically record the information. It is an object of the present invention to provide an information recording/reproducing device that allows addition, modification, and supplementation.

Means for Solving the Problems The present invention provides an information reproducing means for reproducing information from a first type information recording area or a second type information recording area, and an information reproducing means for reproducing information from a first type information recording area or a second type information recording area. This is an information recording and reproducing apparatus that includes an information recording means for recording information, and a control means for controlling the information reproducing means and the information recording means using information in a control information section.

Operation According to the above-described configuration, the control means is configured to reproduce information from the initial information section when the control information section indicates "not updated" when reproducing information from the 5th type information recording area. When indicating that the information has been updated, the information reproducing means is instructed to reproduce the information from the update information section.
When reproducing information from the second type information recording area, the information reproducing means is instructed to reproduce all information from the information recording section. Also, when recording information in the first type information recording area, the 5 information control section is changed to "already updated", the information recording means is instructed to record information in the update information section, and the information is recorded in the second type information recording area. Sometimes the information recording means is instructed to record information in the information recording section.

By configuring and controlling in this way, information can be physically recorded in the initial information section and added or modified.

When supplementation becomes necessary, it can be electrically recorded in the update information section or the information recording section.

Embodiment FIG. 1 shows a block diagram of an information recording/reproducing apparatus in an embodiment of the present invention. In FIG. 1, 1 is a recording medium having a first type information recording area and a second type information recording area, and 2 is information reproducing means.

3 is an information recording means, and 4 is a control means.

The operation of the information recording/reproducing apparatus of this embodiment configured as described above will be explained below.

The inside of the recording medium 1 is uniformly divided into blocks of a fixed size as a certain information recording area, and the operation of recording and reproducing information is performed in units of blocks. This block is usually called a sector, so hereafter the first type information recording area will be referred to as a D-type sector.
This will be explained as a type 2 information recording area 2s type sector.

FIG. 2 is a first example showing the structure within the D-type and S-type sectors. In FIG. 2, 10 is a D-type sector.

11 is a control information section, 12 is an update information section, 13 is an initial information section, 20 is an S type sector, and 21 is a control information section.

22 is an information recording section. Control information section 11.21 value y
is 0: "D type not updated", 1: "D type reading updated".

2: Means "S type". In the initial state, F=o or 2
It is. Information is physically recorded in the initial information section 13. In addition, the amount of information Srw that can be stored in the 5 update information section 12
The amount of information Sro that can be stored in the initial information section 13 and the amount of information Ser that can be stored in the information recording section 22 are Srw = Sr
Let o = Ser. However, the amount of information stored in the D-type sector and the S-type sector is apparently the same. The operation of the control means 4 at this time will be explained along the flowchart shown in FIG.

(2L) When requesting to reproduce information for the target sector: (Rlo) Start of information reproduction operation (R11) Reads the contents Fi of the information control section in the sector.

(R12) If F=2 (=S type), proceed to (Rls).

(R13) F = 1 (=D type nest update (Ih
Proceed to e).

(R14) Instructs the information reproducing means 2 to read the information in the initial information section 13.

(R16) Proceed to (R1s).

(Rle) Instructs the information reproducing means 2 to read the information in the update information section 12.

(Fll 7) Proceed to (R19).

(Rls) Instructs the information reproducing means 2 to read information from the information recording section 22.

(R19) Information reproduction operation complete.

(b) When requesting to record information to the target sector: (Wlo) Start of information recording operation (Wll) Reads the contents F of the information control section in the sector.

(R12) If F = 2 (=S type) then (R16)
Proceed to.

(Wl 3) Set the contents of the control information section 11 to 7=1 (=D
Change to type-type nest update.

(Wl 4) Update information to information recording means 3 Information section 1
Instruct to write to 2.

(Wl 5) Proceed to (Wl 7).

(Wl 6) Information full update information part 1 in information recording means 3
Instruct to write to 2.

(Wl 7) Information recording operation complete.

FIG. 4 is a second example showing the configuration within a sector.

In FIG. 4, 30 is a D-type sector, 31 is a control information section, 32 is an update information section, 33 is an initial information section, 40 is an S-type sector, and 41 is a control information section 542 is an information recording section. The control information section 21 has a recording mode F, a correction position, and a correction length. The meaning of recording mode F is the same as in the case of FIG. Also, 5rvr −6Sro = Se
r, and the correction length L≦Srw. The operation of the control means 4 at this time will be explained along the flowchart shown in FIG.

(2L) When requesting to reproduce information for the target sector: (R20) Start information reproduction operation (R21) Read the contents of the information control section in the sector 0 (R22) If F = 2 (= S type), (R2
&) 0 (R23) If F=1 (=D type nest update (R26
).

(R24) Instructs the information reproducing means 2 to read the information in the initial information section 33 into the internal buffer X.

(R25) Proceed to (R2b).

(R26) Instructs the information reproducing means 2 to read the information in the update information section 32 into the internal buffer Y.

(R27) Instructs the information reproducing means 2 to read the information in the initial information section 33 into the internal buffer X.

(R28) All information from the correction position to the correction length in the internal buffer X is replaced with the corresponding information in the internal buffer Y.

(R29) Proceed to (R2b).

(12&) Instructs the information reproducing means 2 to read the information in the information recording section 42 into the internal bath X.

(R2b) Information reproduction operation ends.

(b) When requesting to record information to a target sector: (R20) Start of information recording operation (R21) Read the contents of the information control section in the sector.

(R22) If F = 2 (= S type), then (R2
Proceed to 6) 0 (R23) 1=1 (=D type nest update, information correction position person and correction length Li stored in the initial information section 23).

(R24) Update information to information recording means 3 information section 32
Instruct the user to write the correction information.

(R25) Proceed to (R27).

(R26) Information recording section 42 stores information in information recording means 3.
instruct the user to write to the

(R27) Information recording operation complete.

In this embodiment, for convenience of explanation, the initial state of the control information 11 or 31 is set to F=O so that it can be rewritten, but it is also possible to physically set F=o and make it completely for reproduction only. In FIGS. 2 and 3, the D-type sector 10 includes an update information section 12.
．． Although it is assumed that the initial information portions are formed in the order of i3, the order is not limited to this.
3).

Also, although all sectors of the block are used, other measures may also be possible.

The arrangement of D-type sectors and S-type sectors within the recording medium 1 may be distributed as shown in FIG. 6 (&).

If the tracks are separated using a certain track as a boundary as shown in FIG. 6(b), the type can be recognized without having identification information of D type or S type in the control information. Furthermore, if the recording medium is capable of determining whether information is unrecorded/recorded (=erased/recorded) in the information update section of the D-type sector, "not updated"/"
The "already updated" information can be omitted and a substitute determination can be made.

As described in detail, according to the present invention, an optical disc having both information areas with different properties in the same medium is used, and when providing a product, information is physically recorded and provided at a low cost. Correcting deficiencies in information during physical recording, and adding or correcting information by users.

Compensation can be done electrically, and its practical effects are great.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an information recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a first configuration example in a sector, and FIG. 3 is an explanatory diagram of a first sector configuration (FIG. 2). A flowchart explaining the entire operation of the control means, FIG. 4 is an explanatory diagram of the second configuration example in the sector, and FIG. 6 is a diagram showing the second sector configuration (
FIG. 4 is a flowchart explaining the operation of the control means in FIG. 4). FIG. 6 is an explanatory diagram of an example of the arrangement of information recording areas within a recording medium. DESCRIPTION OF SYMBOLS 1... Recording medium, 2... Information reproducing means, 3... Information recording means, 4... Control means, io, 30... Listening type Sector, 11.21...
...Control information section, 12゜22...Update information section,
13.23...Initial Information Department. 20.40...S type sector, 21.41...music control information section, 22.42...information recording section. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 3 Figure 4 Figure 5 (Figure 5 Cb) Figure 6

Claims (1)

[Claims] The first type information recording area of a recording medium including a first type information recording area having a control information part, an update information part, and an initial information part, and a second type information recording area having a control information part and an information recording part; information reproducing means for reproducing information from the second type information recording area; and information reproducing means for reproducing information from the second type information recording area;
an information recording means for recording information in the type information recording area; and an information recording means for recording information in the type 1 information recording area when the information in the control information section indicates that it is "a type 1 information recording area and not updated" during information reproduction; When information is reproduced from the initial information section and indicates that the area is a "first type information recording area and has been updated," information is reproduced from the update information section of the first type information recording area, and information is reproduced from the update information section of the first type information recording area. When indicating that the area is a "type 1 information recording area," information is reproduced from the information recording section of the type 2 information recording area, and when information is being recorded in the control information area, the information is indicating that it is a "type 1 information recording area." changes the information control section of the first type information recording area to "first type information recording area and updated", records information in the update information section of the first type information recording area, and changes the information control section of the first type information recording area to "second type information recording area and updated".
and a control means having a function of controlling the information reproducing means and the information recording means so as to record information in the information recording section of the second type information recording area. An information recording and reproducing device comprising: