JPH07101539B2 - Information recording / reproducing device - Google Patents

Description

The present invention relates to an information recording / reproducing apparatus for recording / reproducing information on / from a recording medium such as an optical disk or a magnetic disk.

[Conventional technology]

Some recording media such as optical discs and magnetic discs can be read only and some can be both recorded and played. For example, a video disk, a digital audio disk, etc. cannot be recorded but can be reproduced only, and an optical file disk, a magnetic disk, etc. can be both recorded and reproduced. Further, for example, if a predetermined process (write protect) is performed on a floppy disk or the like, it is possible to prohibit the recording of information thereafter.

[Problems to be solved by the invention]

However, in a conventional disc, for example, when write protect processing is performed, the effect extends to the entire area of the disc and recording (erasing) is performed only at a predetermined address.
Could not be banned. Therefore, it is difficult for a user to perform a special operation such as reproduction inhibition or recording inhibition on arbitrary information on one disc.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention is capable of recording or reproducing information at a designated arbitrary address, and an area where only a reproducing operation is possible and an area where only a recording operation is possible. A recording medium such as an optical disk or a magnetic disk that can be divided into at least two different areas out of areas capable of both recording operation and reproducing operation, and operation of each area and the address indicating a range of the area. A setting means for setting and inputting, a recording / reproducing means for recording / reproducing the information on / from the recording medium, an operation of one of the recording operation or the reproducing operation and a range of the area for executing the operation. Control means for issuing an instruction including the address shown, and setting operation preset by the setting means for the area indicated by the address included in the instruction Said determining means for comparing determines the operation contained in the instruction, with the configured only to perform the operations contained in the instruction when the operation and included in the instruction and the setting operation is identical.

[Action]

According to the present invention, a recording medium is capable of recording or reproducing information at a designated arbitrary address, and an area where only a reproducing operation is possible, an area where only a recording operation is possible, and a recording operation. It is possible to partition into at least two different areas among the areas where both the playback operation and the playback operation are possible.

The manufacturer or the like sets and inputs the operation of each area and the address indicating the area range through the establishing means.

The recording / reproducing means records / reproduces information on / from a recording medium.

The control means issues a command including either one of a recording operation and a reproducing operation and an address indicating a range of an area in which the operation is executed.

The determining means compares the setting operation preset by the setting means with the operation included in the instruction with respect to the area indicated by the address included in the instruction.

Then, as a result of the comparison judgment by the judgment means, the operation included in the instruction is controlled to be executed only when the setting operation matches the operation included in the instruction.

Therefore, the manufacturer or the like can arbitrarily set or change the range of the area on the recording medium and the operation that can be executed in the area, and at the same time, the recording (erasing) prohibition, the reproduction prohibition, etc. in one recording medium can be performed. Special actions can be performed on arbitrary information.

〔Example〕

Next, a preferred embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram of an information recording / reproducing apparatus of the present invention. In the figure, reference numeral 1 is a control unit including, for example, a computer, which controls the operation of the recording / reproducing apparatus 2. The control unit 1 may be provided outside the recording / reproducing apparatus 2 or may be integrally provided inside. The recording / reproducing apparatus 2 includes a disk 3 as a recording medium,
It has a recording / reproducing unit 4 for recording / reproducing information on / from the disc 3. Reference numeral 5 denotes a determination unit, which compares the information from the recording / reproducing unit 4 with the information input from the control unit 1 via the interface 6 to control the operation of the recording / reproducing unit 4. Reference numeral 7 denotes a setting unit as a setting unit, which can set and input predetermined information such as a range of an area on the recording medium 1 and an operation executable in the area.

Then, to explain the operation, for example, the recording / reproducing apparatus 2
The manufacturer, etc., more specifically, the manufacturer and the user operate the setting unit 7 at the time of manufacturing the recording / reproducing apparatus 2, more specifically at the time of manufacturing and when necessary. A predetermined address and information relating to the recording or reproducing operation are set and stored in the setting unit 7. That is, for example, an address for which recording is prohibited, an address for which recording and reproduction are possible, and an address for which reproduction is prohibited are input. As a result, as shown in FIG. 2, the disc 3 is a region 11 where recording is prohibited and only reproduction is possible, a region 12 where both recording and reproduction are possible, and a region where reproduction is prohibited and recording is possible only. 13 and 13 (of course, each area may be dispersed). For example, an area in which data that is difficult to be erased such as data at the time of shipment of a disc, recognition data, etc. is recorded can be set as a recording prohibited area 11, and an area in which confidential data is recorded can be set as a reproduction prohibited area 13. .

When the control unit 1 issues a command including any one of the recording operation and the reproduction operation and the address to operate the disc in which the area is set, the command is sent via the interface 6 to the determination unit 5 Entered in. At this time, the judgment unit 5 operates the address related to the instruction and the setting unit 7
The information regarding the operation of the address which is set and stored in the above is compared and judged. Here, when the operation of the area of the address related to the instruction stored in the setting unit 7 matches the operation of the instruction (when the address is the address of the area 12 or 13 when the recording operation is instructed, Further, when the reproduction operation is instructed, when the address is the address of the area 11 or 12, the determination unit 5 issues a control signal to the recording / reproduction unit 4, and the operation according to the instruction (recording operation or reproduction operation). To execute. On the other hand, when the operation of the area of the address related to the instruction stored in the setting unit 7 does not match the operation of the instruction (when the recording operation is instructed, the address is
, And when the playback operation is instructed and the address is the address of the area 13), the judgment unit 5 controls via the interface 6 that the instruction is prohibited in the setting unit 7. Transmit to part 1. At this time, the control unit 1 displays the fact to the user via a predetermined display means. When the user changes the address or the operation, the same judgment is performed again, and if the operation of the address area related to the instruction matches the operation related to the instruction, the instruction is executed.

When an input for canceling the prohibited state is made in the setting unit 7, the operation instructed by the control unit 1 is executed as it is. Therefore, if the setting section 7 is provided at a position where it is relatively difficult for a general operator to operate, such as inside the recording / reproducing apparatus 2,
At the time of repair or the like, only a specific person can record and reproduce predetermined information as needed.

In the above description, the information regarding the operation for the predetermined address is set and stored in the setting unit 7, but it may be recorded in the disc 3.

〔effect〕

As described above, according to the present invention, the manufacturer or the like sets and inputs the range of the area on the recording medium and the recording or reproducing operation which can be executed in the area through the setting means, and the Since it is decided that the operation included in the instruction is executed only when the operation desired to be executed in the indicated area and the executable operation in the area indicated by the address set by the setting means match each other, the manufacturer etc. , The range of the area on the recording medium and the operation that can be executed in the area can be arbitrarily set or changed, and any special operation such as recording (erasing) prohibition or reproduction prohibition in one recording medium can be performed. Can be done on information.

[Brief description of drawings]

FIG. 1 is a block diagram of an information recording / reproducing apparatus of the present invention, and FIG.
The drawing is a schematic plan view showing the division of the area of the recording medium. 1 ... Control unit, 2 ... Recording / reproducing device 3 ... Disc, 4 ... Recording / reproducing unit 5 ... Judgment unit, 6 ... Interface 7 ... Setting unit 11, 12, 13 ... Area

Claims (1)

[Claims] 1. Information can be recorded or reproduced at a designated arbitrary address, and an area where only a reproducing operation is possible, an area where only a recording operation is possible, and both a recording operation and a reproducing operation are possible. A recording medium that can be divided into at least two different areas out of the possible areas, setting means for setting and inputting the operation of each area and the address indicating the range of the area, and the recording medium. Recording and reproducing means for recording and reproducing the information; control means for issuing an instruction including one of the recording operation and the reproducing operation and the address indicating the range of the area in which the operation is executed; Determining means for comparing and determining a setting operation previously set by the setting means and an operation included in the instruction with respect to the area indicated by the address included in the instruction; An information recording / reproducing apparatus, comprising: performing the operation included in the instruction only when the setting operation matches the operation included in the instruction.