JP2002260327A - Method for recording and playing back optical disk, optical disk recorder/player, and optical disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve copy protection for an optical disk on which a copyrighted program is recorded. SOLUTION: The manufacturer side sets a program starting address at a position other than a disk leading address on an optical disk D2, and records the program thereon. A specified address in the program described in the program is confirmed in an optical disk recorder/player 1C at the side of a user when the program is carried out at the side of the user. Furthermore, intrinsic information to the optical disk recorder/player 1C is acquired when the program is carried out, the acquired intrinsic information is recorded on the optical disk, and it is confirmed whether the recorded intrinsic information coincides with the optical disk recorder/player 1C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk recording / reproducing method, an optical disk recording / reproducing apparatus, and an optical disk for improving the recording / reproducing method of a copyrighted program so that the program is not easily copied. It is.

[0002]

2. Description of the Related Art Generally, a CD (Compact Di) is used.
sk), DVD (Digital Versatile)
An optical disc such as a disc) can record and / or reproduce information signals such as video information, audio information, and computer data on a spirally or concentrically formed track on a disc-shaped disc substrate at a high density. They are often used because they allow fast access to trucks.

On the other hand, an optical disk recording / reproducing apparatus for recording and / or reproducing an optical disk as described above has been constantly improving its technology, and manufacturers have added new functions newly developed or improved functions. Although the optical disk recording / reproducing device of the new product is provided to the user side, the user who has already purchased the optical disk recording / reproducing device becomes enormous in burden of the user when purchasing the new product each time.

Therefore, a flash memory or the like is generally prepared in advance in an optical disk recording / reproducing apparatus already purchased so that firmware can be updated. Note that the above-mentioned firmware refers to a microprogram positioned between hardware and software.

[0005] Then, an update / addition to which a new function newly developed or an improved function improved by the manufacturer is added.
CR-ROM (CD-Read) with recorded program
Only Memory is provided to the user from the manufacturer side, for example, or the user purchases the software from a software sales company, and updates the firmware in the optical disc recording / reproducing apparatus with the update program recorded in the CR-ROM. By doing so, it is possible to provide an already purchased optical disc recording / reproducing device with a new function or an improvement function substantially equivalent to a new product.

FIG. 1 is a block diagram for explaining an optical disk recording / reproducing apparatus used by a user in a conventional example.
FIG. 2 is a diagram for explaining a conventional optical disk (= CD-ROM) on which an update program is recorded, and FIG. 3 is shown in FIG. 1 using a conventional optical disk (= CD-ROM) on which an update program is recorded. FIG. 7 is a flowchart showing a conventional operation when updating firmware in an optical disk recording / reproducing apparatus on the user side.

In the conventional example shown in FIG. 1, an optical disk recording / reproducing apparatus 1A used on the user side is connected to a well-known personal computer apparatus 31A via a BUS. It can be controlled from the side. At this time, both devices 1A, 3
The BUS connecting 1A has well-known SCSI and IEEE.
Interface standards such as 1394 and USB are applied.

First, a read-only optical disk (= CD-ROM) D1 on which an update program is recorded is mounted in the optical disk recording / reproducing apparatus 1A, and the optical disk D1 is rotatable by a spindle motor 2. . At this time, in the optical disk recording / reproducing apparatus 1A, a CD or CD-RO to which a well-known optical disk standard is applied is used.
M, CD-R (CD-Recordable), DV
D, DVD-R (DVD-Recordable), D
VD-RW (DVD-Rewritable), DV
D-RAM (DVD-Random Access M)
The disc type discriminating means for discriminating the type of the optical disc such as an e.g.
It is to apply the technical idea disclosed in Japanese Patent Application Publication No. 0-11528, and the illustration is omitted here.

A signal recorded on the signal surface of the optical disk D 1 is read by an optical pickup (hereinafter referred to as PU) 3, and the read reproduced signal is input to a preamplifier 4. At this time, an APC circuit 14 is provided to control the optical power of the laser light (not shown) in the PU 3, and the ON / OFF of the laser light is controlled by the CPU 22 which controls the entire optical disc recording / reproducing apparatus 1A.
It is controlled via a circuit 14.

In the preamplifier 4, a focus error signal (hereinafter, referred to as an FE signal), a tracking error signal (hereinafter, referred to as a TE signal), and an RF signal are based on the reproduced signal input from the PU 3. The FE signal and the TE signal generated here are input to the servo amplifier 5 and the RF signal is input to the decoder 15.

The servo amplifier 5 includes A / D converters 6 and 9 and an equalizer and an amplifier (hereinafter referred to as EQ / Amp).
), And two sets of D / A converters 8 and 11, respectively.

In the servo amplifier 5, the FE signal from the preamplifier 4 is input to the A / D converter 6, where the analog signal is converted into a digital signal.
After the waveform is equalized and amplified by the Amp 7 and the digital signal is returned to the analog signal by the D / A converter 8, the digital signal is input to the driver circuit 12 for driving the focus coil.
The FOCS signal output from the driver circuit 12
It drives a focus coil (not shown) in U3.

On the other hand, the TE signal from the preamplifier 4 is input to an A / D converter 9 like an FE signal, where an analog signal is converted into a digital signal.
After the waveform is equalized and amplified by the Q / Amp 10 and the digital signal is returned to the analog signal by the D / A converter 11, the digital signal is input to the driver circuit 13 for driving the tracking coil, and the output from the driver circuit 13 is output. TRK
Tracking coil in PU3 with G signal (not shown)
, And further, the TRKG signal is EQ / Amp
The carriage 25 on which the PU 3 is mounted is moved in the radial direction of the optical disk D 1 by a CARG signal which is input to a driver circuit 28 for driving a carriage coil via the 27 and is output from the driver circuit 28 by a CARG signal.

The above-mentioned decoder 15 is used for the A / D converter 1
6, an equalizer and an amplifier (EQ / Amp) 17,
A synchronization detection circuit 18, a spindle (SPDL) error circuit 19, a D / A converter 20, and a demodulation circuit 26 are provided inside.

In the decoder 15, the RF signal from the preamplifier 4 is input to an A / D converter 16, where the analog signal is converted into a digital signal.
/ Amp17 equalizes and amplifies the waveform, and EQ / Amp17
An output signal from the signal 17 is branched and input to a synchronization detection circuit 18 and a demodulation circuit 26. Thereafter, the synchronization detection circuit 18
Then, a synchronization signal is detected based on the output signal from the EQ / Amp 17, and this synchronization signal is detected by the SPDL error circuit 1.
9 to generate a spindle error signal, and convert the spindle error signal from a digital signal to an analog signal by a D / A converter 20;
The spindle motor 2 is synchronously rotated by a driver circuit 21 for the motor.

The output signal from the EQ / Amp 17 is demodulated by the demodulation circuit 26 and output as a data (DATA) signal. At this time, the DATA signal demodulated by the demodulation circuit 26 is an optical disk (= CD-ROM) D
This is a reproduction of the update program recorded in No. 1.

On the other hand, when an information signal is recorded using a recordable / reproducible optical disk (not shown in FIG. 1), a data (DATA) signal is input to a modulation circuit 29 and modulated into a signal suitable for recording. Thereafter, the data is recorded on an optical disc capable of recording and reproduction from the recording circuit 30 via the PU3.

Further, the EQ / A provided in the servo amplifier 4
The CPU 22 controls the circuit characteristics of the mps 7 and 10 and the gain of the D / A converters 8 and 11, and a memory 23 is connected to the CPU 22 for data storage and calculation processing. A control program (= firmware) for the CPU 22 is stored in a rewritable RAM area of the flash memory 24, and the optical disk recording / reproducing apparatus 1A
For example, the model number of the flash memory 2
4 are stored in a non-rewritable ROM area, and these control programs (= firmware) and model numbers are pre-written at the time of factory shipment.

Next, a BU is recorded on the optical disk recording / reproducing apparatus 1A.
Well-known personal computer device 31A connected via S
Is composed of a personal computer (PC) main body 32, an operation unit 33 having a keyboard and the like, and a monitor 34 for displaying data.

Next, the above-described optical disk recording / reproducing apparatus 1
Conventional optical disk (= CD-ROM) D used for A
1 will be briefly described with reference to FIG.

As shown in FIG. 2, a conventional optical disc (=
The CD-ROM) D1 has a center hole CH having an outer diameter of 12 cm and an inner diameter of 15 mm at the center thereof.
H, the clamp area CL, the lead-in area LIA, and the program area PA on the signal surface
And the lead-out area LOA are sequentially formed concentrically with respect to the center hole CH.

In the program area PA following the lead-in area LIA on the optical disc D2, an update program is recorded in a state where addresses are assigned to respective tracks in order from the disc start address, and the update program is recorded. Is the same as the disc start address.
The program end address of the update program is set according to the contents of the program.

The above-mentioned update program includes, in the vicinity of the program start address, an instruction for obtaining, for example, a model number as unique information of the optical disk recording / reproducing apparatus 1A, and an object to be used for the optical disk D1 on which the update program is recorded. And a control program for updating a rewritable RAM area of the flash memory 24 provided in the optical disk recording and reproducing apparatus 1A. Is optical disk D
1 in the program area PA.

Next, a conventional operation when updating the firmware in the optical disk recording / reproducing apparatus 1A on the user side will be described step by step with reference to FIGS.

When rewriting the control program (= firmware) stored in the rewritable RAM of the flash memory 24 provided in the optical disk recording / reproducing apparatus 1A, first, in STEP1, the optical disk recording / reproducing apparatus 1A is rewritten. It is inquired whether or not an optical disk is loaded therein. If no optical disk is loaded (NO), the process waits for loading of the optical disk, while if an optical disk is loaded (YES), S
Discrimination of the type of optical disc mounted in TEP2
This is performed by applying a known technical idea disclosed in, for example, JP-A-00-11528.

Here, since the optical disk (= CD-ROM) D1 on which the update program is recorded is mounted in the optical disk recording / reproducing apparatus 1A, the result of the type determination of the optical disk is determined to be a read-only CD type. Accordingly, conditions are set in the optical disk recording / reproducing apparatus 1A for components to be set in accordance with a read-only CD type.

Next, in STEP 3, a focus coil (not shown) in the PU 3 is driven in accordance with a CD type for reproduction only, and a reproduction laser beam from an objective lens (not shown) in the PU 3 is driven. Is focused on the signal surface of the optical disc D1 (FOCS in).

Next, in STEP 4, the personal computer 31A connected to the optical disk recording / reproducing apparatus 1A is started to wait for a read command from the PC main body 32 to the optical disk D1, and the read command is transmitted to the optical disk recording / reproducing apparatus 1A. When it arrives (in the case of YES), P in STEP5
U3, the update program is sequentially read from the disk start address on the optical disk D1, and the read update program is read by the PC main unit 32.
Pass to. Hereafter, the update program is PC 3
2 works.

Next, in STEP 6, an instruction for acquiring, for example, a model number as unique information of the optical disk recording / reproducing apparatus 1A on the update program is issued.
The model number is Fla as the query data (collation data)
It is called from the non-rewritable ROM area of the sh memory 24 and acquired in the memory 23.

Next, in STEP 7, the CPU 22 determines whether or not the model model number acquired in the memory 23 matches the model model number of the target model stored in the update program in advance. If the model numbers match (in the case of YES), the flow proceeds to STEP8, and if the model numbers do not match (in the case of NO), the STE
Proceed to P9.

Next, in STEP 8, since the model numbers match according to the determination result in STEP 7, the optical disc recording / reproducing apparatus 1A is updated using the update program.
The update process is executed by storing the update program in the update program in the rewritable Flash memory 24 provided in the optical disc recording / reproducing apparatus 1A, and the update process is completed.

On the other hand, in STEP 9, since the model numbers do not match according to the determination result in STEP 7, the update program is not for updating the firmware in the optical disk recording / reproducing apparatus 1A. Therefore, it is impossible to update the firmware in the optical disk recording / reproducing apparatus 1A, and based on this, the model number mismatch information is displayed on the monitor 34 connected to the PC main body 32, and the update process is completed.

[0033]

As described above, the optical disk recording / reproducing apparatus 1 already purchased by the user
A, if necessary, the optical disc recording / reproducing device 1A
When updating the firmware inside, the conventional firmware update operation uses an optical disc (= CD-ROM) D1 on which an update program is recorded, and
The update program recorded on the optical disc D1 is reproduced, the model number obtained from the optical disc recording / reproducing apparatus 1A by the update program, and the disc recording / reproducing apparatus to be used for the optical disc D1 on which the update program is recorded. The firmware in the optical disk recording / reproducing apparatus 1A can be updated only when the model number of the optical disk recording / reproducing apparatus 1A matches. However, if the update program is charged, one or more users can use the same model number. When there are a plurality of kitchens 1A, the optical disc D1 on which the update program is recorded is copyright
Even if it is necessary to purchase the same number of A's, as long as one optical disc D1 is obtained, all the plurality of optical disc recording and reproducing apparatuses 1A of the same model can be updated.

Further, the above optical disk (= CD-RO)
M) In D1, as described above with reference to FIG. 2, since the program start address of the update program matches the disk start address, C that can be recorded only once
The update program can be copied to the DR from the start address of the disk as a whole, and the update program can be copied to an unshown HDD (hard disk) connected to the PC 32 on the user side. Therefore, the update program is illegally copied to the CD-R or HDD even though the illegal copy is prohibited from copyright, and the firmware in the optical disk recording / reproducing apparatus 1A is updated by the illegally copied CD-R or HDD. There are problems, such as the possibility of being able to do so.

Therefore, an optical disk recording / reproducing method, an optical disk recording / reproducing apparatus, and an optical disk for improving the recording / reproducing method of a copyrighted update program and preventing the update program from being easily copied are desired. I have.

[0036]

Means for Solving the Problems The present invention has been made in view of the above problems, and a first invention is to use an optical disk capable of repeatedly recording a plurality of times on a manufacturer side,
An optical disk recording / reproducing method for reproducing an address on the optical disk and recording a copyrighted program from a predetermined position on a signal surface of the optical disk, wherein the program is stored in a position other than the disk head address on the optical disk. The program start address is set in advance, and the specific address in the program, the unique information of the optical disc recording / reproducing device to be used for the optical disc, the first unique information of the user side optical disc recording / reproducing device, And a command for acquiring the second unique information and a command for recording the second unique information at a predetermined address on the optical disc when the user acquires the second unique information. After recording from the program start address on the optical disc, An optical disk recording and reproducing method characterized by recording the record disable signal to variable.

Further, the second aspect of the present invention relates to
An optical disk recording / reproducing method for using an optical disk capable of repeatedly recording a plurality of times, reproducing an address on the optical disk, and recording a program having a copyright from a predetermined position on a signal surface of the optical disk, A program start address of the program is set beforehand at a position other than the disk start address on the optical disk, and a specific address in the program and encrypted unique information of an optical disk recording / reproducing apparatus to be used for the optical disk And the first of the optical disk recording / reproducing devices on the user side.
Instructions for acquiring the unique information and the second unique information and instructions for recording the second unique information at a predetermined address on the optical disk when the user acquires the second unique information are included in the program. After recording the program from the program start address on the optical disc,
An optical disk recording / reproducing method, characterized by recording a recording non-permission signal for recording non-permission on the optical disk.

[0038] The third invention is based on the following point.
An optical disc recording / reproducing apparatus that uses an optical disc capable of repeatedly recording a plurality of times, reproduces an address on the optical disc, and records a program having a copyright from a predetermined position on a signal surface of the optical disc, Means for presetting the program start address of the program at a position other than the disk start address on the optical disk, and inputting the program start address; and means for generating a recording non-permission signal for disabling recording on the optical disk Instructions for obtaining a specific address in the program, specific information of an optical disk recording / reproducing device to be used for the optical disk, and first and second specific information of an optical disk recording / reproducing device on the user side, respectively. When the user acquires the second unique information, the second unique information is transmitted to the optical disc. Pay for instructions and for recording at a predetermined address in said program, and records the program from the program start address on the optical disk,
Means for recording the recording non-permission signal on the optical disk after recording the program.

A fourth invention is an optical disk recording / reproducing method for recording / reproducing an optical disk recorded by the optical disk recording / reproducing method of the first invention by an optical disk recording / reproducing apparatus on the user side. At the time of recording / reproduction, if the address of the specific position in the program read by the optical pickup matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to a record enable signal. Thereafter, when the first unique information acquired from the optical disc recording / reproduction on the user side by the instruction to acquire the first unique information in the program matches the unique information stored in the program, The user obtains the second unique information from the optical disk recording / reproducing on the user side by the command. (2) After acquiring the unique information and confirming whether or not the acquired second unique information is written properly, the second unique information is recorded at a predetermined address on the optical disc, and the program is executed. An optical disk recording / reproducing method, wherein the recording permission signal is returned to the recording non-permission signal at the stage when the execution is completed, and is recorded on the optical disk.

According to a fifth aspect of the present invention, there is provided an optical disk recording / reproducing method for recording / reproducing an optical disk recorded by the optical disk recording / reproducing method according to the second aspect of the present invention by a user side optical disk recording / reproducing apparatus. At the time of recording / reproduction, if the address of the specific position in the program read by the optical pickup matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to a record enable signal. Thereafter, the first unique information acquired from the optical disc recording / playback on the user side by the instruction to acquire the first unique information in the program is stored in the program. If the information matches the decrypted unique information, the instruction to acquire the second unique information is further issued by the instruction. The second unique information is acquired from the optical disc recording / reproduction on the user side, and after confirming whether the acquired second unique information is written or not, the second unique information is encrypted, and the second unique information is encrypted to a predetermined address on the optical disc. An optical disc recording / reproducing method, comprising recording and executing the program, and returning the recording permission signal to the recording non-permission signal and recording on the optical disc when the execution of the program is completed.

According to a sixth aspect of the present invention, there is provided an optical disk recording / reproducing apparatus for recording / reproducing, on a user side, an optical disk recorded by the optical disk recording / reproducing method according to the first aspect of the present invention, wherein the optical disk has a recording permission. Means for generating a recording permission signal for performing recording and a recording disabling signal for disabling recording on the optical disc, and when recording or reproducing the optical disc, an address of a specific position in the program read by an optical pickup is used. When the specific address matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to the recording permission signal, and thereafter, the instruction to acquire the first unique information in the program is issued. The first unique information acquired from the optical disk recording / playback on the user side is the fixed information stored in the program. If the information coincides with the information, the user acquires the second unique information from the optical disc recording / reproduction on the user side by a command to acquire the second unique information, and confirms whether the acquired second unique information is good or bad. The program is executed by recording the second unique information at a predetermined address on the optical disc, and when the execution of the program is completed, the recording permission signal is returned to the recording non-permission signal and recorded on the optical disc. An optical disc recording / reproducing apparatus comprising a recording / reproducing means.

According to a seventh aspect of the present invention, there is provided an optical disc in which a copyrighted program is recorded at a predetermined position on a signal surface on which a signal can be repeatedly recorded a plurality of times. An address is set in advance, and a specific address in the program, specific information of an optical disk recording / reproducing apparatus to be used for the optical disk, and first and second specific information of a user side optical disk recording / reproducing apparatus. And an instruction to record the second unique information at a predetermined address when the user acquires the second unique information in the program, and record the program from the program start address. And recording a recording non-permission signal indicating that recording is not permitted after the recording.

[0043]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an optical disk recording / reproducing method, an optical disk recording / reproducing apparatus and an optical disk according to the present invention will be described below with reference to FIGS. Example> and <Third Embodiment> will be described in detail in this order.

In the first to third embodiments described below, the optical disk recording / reproducing apparatus and the personal computer used by the manufacturer and the optical disk recording / reproducing apparatus and the personal computer used by the user are respectively Since they are managed in different places, they are different from each other, and the reference numerals for the respective devices according to the present invention are the same as those of the conventional optical disk recording / reproducing device and the personal computer device described with reference to FIG. Although different reference numerals are assigned to the components, the components provided in each device perform almost the same functions and operations as the components in each device of the conventional example. The constituent members will be described with the same reference numerals as appropriate, and new constituent members will be described with the new reference numerals.

In the first to third embodiments described below, the description will be made separately for the maker and the user, so that the operations of the optical disk recording / reproduction and the personal computer apparatus of the maker and the user can be performed. The difference between the optical disk recording / playback and the operation of the personal computer device is clarified.

<First Embodiment> (Regarding Optical Disk Recording / Reproducing Method, Optical Disk Recording / Reproducing Apparatus and Optical Disk on Maker Side) FIG. 4 is a view for explaining an optical disk recording / reproducing method and optical disk recording / reproducing apparatus on the maker side according to the present invention. FIG. 5 is a block diagram of the first embodiment, and FIG. 5 shows that in the first embodiment, an update program is recorded on an optical disk (= DVR-RAM) capable of repeatedly recording a plurality of times by using an optical disk recording / reproducing apparatus on the manufacturer side. 7A and 7B are diagrams showing a format when a recording non-permission bit is recorded after recording, FIG. 7A is a diagram showing a format when recording is not permitted, and FIG. Reference numeral 6 denotes an optical disk (= DV) according to the first embodiment of the present invention on which an update program is recorded.
FIG. 7 is a diagram for explaining a D-RAM, and FIG. 7 shows an optical disc (= DVR) capable of repeatedly recording a plurality of times using an optical disc recording / reproducing apparatus on the manufacturer side in the first embodiment.
FIG. 9 is a flowchart of recording an update program in (RAM).

In the first embodiment shown in FIG. 4, the optical disk recording / reproducing apparatus 1B used on the manufacturer side
Is connected to the well-known personal computer device 31B via
This optical disk recording / reproducing apparatus 1B is composed of a personal computer 31
Control is also possible from the B side. At this time, both devices 1
B and 31B are connected to each other by a well-known SCSI or I
Interface standards such as EEE1394 and USB are applied.

Here, the optical disk (= DVD) according to the present invention used in the optical disk recording / reproducing apparatus 1B on the manufacturer side.
Unlike the read-only optical disk (= CD-ROM) D1 described above with reference to FIG. 2 in the conventional example, the (RAM) D2 can be repeatedly recorded a plurality of times and is suitable for computer data. The DVD-RAM standard, for example, 4.7 GB (Ver. 2.1) is applied.
Then, after using the optical disk recording / reproducing apparatus 1B of the manufacturer to record the copyrighted update program on the optical disk D2 so as to prevent illegal copying, the optical disk D2 is provided to the user. It is characterized by the following.

In the optical disk recording / reproducing apparatus 1B on the maker side in the first embodiment, the optical disk (= DVD-RA
M) a spindle motor 2 for rotating D2 via a driver 21, an optical pickup (hereinafter referred to as PU) 3 for recording an update program on the optical disk D2 and reproducing an address on the optical disk D2, P
A preamplifier 4 for generating a focus error signal (hereinafter, referred to as an FE signal), a tracking error signal (hereinafter, referred to as a TE signal), and an RF signal from the reproduction signal reproduced by the U3, and an FE signal and a TE signal from the preamplifier 4 And a carriage 2 on which the PU3 is mounted
5 for controlling the servo driver 5, drivers 12, 1
3, 28 and a decoder 15 for demodulating an address signal on the optical disk D2 based on the RF signal from the preamplifier 4.
A modulation circuit 29 and a recording circuit 30 for recording a data signal (DATA signal) such as an input update program on the optical disk D2 by the PU3;
APC circuit 14 for controlling the optical power of the optical disc 3 and a CPU 22 for controlling the entire optical disc recording and reproducing apparatus 1B
And a memory 23 for storing various data necessary for the operation of the optical disc recording / reproducing apparatus 1B, and an R for rewriting a control program (= firmware) for the CPU 22.
The flash memory 24 stored in the AM area and the optical disk recording / reproducing apparatus 1A on the user side in the conventional example (FIG. 1)
It is provided similarly to.

The personal computer device 31B also includes a PC main body 32, an operation unit 33, and a monitor 34, similarly to the conventional optical disk recording / reproducing device 1A (FIG. 1) on the user side.

The optical disk recording / reproducing apparatus 1B includes:
An address creation circuit 41 for creating a movement amount of the carriage 25 when an update program is recorded on the optical disc D2 as a new constituent member different from the conventional example;
From a data signal (DATA signal) obtained by demodulating a reproduction signal reproduced from the optical disk D2 by the PU3,
An address reading circuit 42 for reading the upper address, and a recording disabling signal (hereinafter, referred to as a recording permission signal) according to a predetermined format after recording the update program on the optical disc D2.
A recording permission signal (hereinafter, referred to as a recording permission signal) for recording the recording permission bit on the optical disc D2 to record the recording permission bit on the optical disc D2.
A recording non-permission / permission information generating circuit 43 for generating a recording permission bit as needed) and adders 44 and 45 are added. Hereinafter, a conventional example using these new components will be described. The different points will be mainly described.

First, an optical disk (= DVD-RAM) D2 capable of repeatedly recording a plurality of times is mounted in the optical disk recording / reproducing apparatus 1B.

An update program for recording on the optical disk D2 is prepared in advance on an HDD (hard disk) (not shown) in the PC body 32, for example.

Here, in the first embodiment, the following first and second rules are set as rules for recording the update program on the signal surface of the optical disk D2 as follows.

First, as a first convention, the program start address equivalent to the start address of the update program should be set to an address other than the disk start address, avoiding recording from the disk start address on the optical disk D2. The update program is set to start recording from this program start address. As a result, since the program start address of the update program is completely unknown on the user side, it is not possible for the user to make a copy in which recording is started from the disc start address using the CD-R on the user side.

More specifically, the program start address of the update program is set to, for example, 06c7e0 in the DVD-RAM format near the fifth zone on the optical disc D2, and the program of 06c7e0 set here is set. The start address is always described in the update program as a specific address in the update program.

The specific address described in the update program will be described below by setting the program start address in the first embodiment. However, the present invention is not limited to this, and the program end address (for example, 079d9f),
Or, a program start address (for example, 06c7e0)
The average value of the program and the program end address (for example, 079d9f), or a specific address value calculated based on the calculation formula specified by the update program may be used for at least one of the program start address and the program end address. By storing a specific address in the update program in this way, copy of the update program is prevented.

Next, as a second convention, when an optical disk D2 on which an update program is recorded is used in an optical disk recording / reproducing apparatus 1C (FIG. 8) on the user side, an optical disk to be used as the optical disk D2 For example, a model number is obtained as the unique information of the recording / reproducing apparatus, and a model number indicating the first unique information and a manufacturing number indicating the second unique information are acquired as the unique information of one optical disc recording / reproducing apparatus 1C on the user side. And an instruction for recording the serial number at a predetermined address on the optical disk D2 by the user among the two types of unique information described above are always described in the update program.

Returning to FIG. 4, the optical disk recording / reproducing apparatus 1B
Starts operation in accordance with an instruction from the PC main body 32.

The PC main unit 32 informs the CPU 22 in the optical disk recording / reproducing apparatus 1B of a command for writing an update program recorded on the HDD from an address on the optical disk D2 via the BUS. Here, as described above, the program start address of the update program is set at a position avoiding the disk start address on the optical disk D2, for example, near the fifth zone and, for example, in the format of 06c7e0.
Therefore, the PC body 32 informs the CPU 22 of 06c7e0 as the program start address of the update program.

Thereafter, the CPU 22 in the optical disk recording / reproducing apparatus 1B receives the program start address (0
6c7e0), the movement amount of the carriage 25 is created by the address creation circuit 41, and the movement amount of the carriage 25 obtained here is added to the TRK from the driver 12 by the adder 44.
The signal is added to the G signal, and the output from the adder 44 is sent to the carriage 25 via the EQ / Amp 27 for the carriage and the driver 28, so that the carriage 25 receives the program start address (06c7e0) of the update program on the optical disk D2. ). After this, PU3
The optical disk D2 is focused by the FOCS-related circuit, the tracking is adjusted by the TRKG-related circuit to the PU3, and the optical disk D2 is synchronously rotated by the spindle-related circuit. Then, PU3 sets the program start address (06c7e) of the update program on the optical disc D2.
0) is read by the PU 3 and input to the decoder 15, and the A / D converter 1 in the decoder 15
6, an address is read by an address reading circuit 42 from the data signal (DATA signal) obtained through the EQ / Amp 17 and the demodulation circuit 26. Then, the CPU 22 determines whether or not the position of PU3 matches the program start address (06c7e0) of the update program on the optical disk D2, and determines whether the program start address (06c7e0).
e0), the carriage-related circuits and the TRKG-related circuits are controlled by the CPU 22 to
Retry U3 to reach the program start address of the update program.

Thereafter, when the position of PU3 matches the program start address (06c7e0) of the update program on the optical disk D2, the update program is sent to the PU3 via the modulation circuit 29 and the recording circuit 30.
The above-mentioned program start address (06c7e) is generated by a recording laser beam from an objective lens (not shown) in the inside.
Write from 0). When the writing of the update program to the optical disc D2 is completed, the CPU 2
2 to the optical disc D2 is sent to the recording non-permission / permission information creation circuit 43, and the recording non-permission / permission information creation circuit 43 writes the recording non-permission bit (recording non-permission signal) according to a predetermined format described below. ) Is generated, and the recording non-permission bit is recorded on the optical disk D2 by the PU3 via the adder 45, the modulation circuit 29, and the recording circuit 30.

Here, there are two methods for generating a recording non-permission bit by the recording non-permission / non-permission information creating circuit 43 as described below. Either of the two methods is employed when creating the recording non-permission bit, or the two methods are employed simultaneously.

First, when a recording non-permission bit is created, as shown in FIG. 5A, the first method is to use the UDF standard Ver. "De32" of Unit32 Permission information in 2.00
This is a method for setting the “letter permission bit” to “0”, and this method records the recording non-permission bit “0” in the update program (file).

Next, the second method is a DVD-RAM
Ver. 2.0 Discidentifica
Tion information ”-Write-
This is a method of setting “inhibit flag for disk” information to “1”.
The recording non-permission bit "1" is recorded in the lead-in area LIA (FIG. 6) on the second.

It is to be noted that, contrary to the above-described case where recording is not permitted,
When a recording permission bit (recording permission signal) is created, as shown in FIG. 5B, the first method is to use the UDF standard Ver. U in 2.00
"Delete" of nit32 Permission information
e permission bit ”is set to“ 1 ”. The second method is DVD-RAM Ve
r. 2.0 "Disk identifier"
ion information ”,“ Write-i ”
This is a method of setting “nhibit flag for disk” information to “0”. Then, when the recording permission bit is created, it is performed by a user-side optical disk recording / reproducing apparatus 1C (FIG. 8) described later.

In the first embodiment, the second DVD-RAM Ver. When the writing of the update program to the optical disc D2 is completed by adopting the method based on the 2.0 standard, the recording non-permission / permission information creating circuit 43 sets “Write-inhibit flag fordi” as a recording non-permission bit.
sk ”information =“ 1 ”, and the recording non-permission bit“ 1 ”is stored in the lead-in area LIA on the optical disc D2.
By recording on the optical disc D (FIG. 6), the optical disc D is provided to two users in a state where recording on the optical disc D2 is not permitted.

That is, the optical disk (= DVD-RAM) D2 of the present invention provided to the user side is a DVD-RAM Ver. As shown in FIG. 6, a central hole CH having an outer diameter of 12 cm and an inner diameter of 15 mm is formed in the center as shown in FIG.
Clamp area C from this center hole CH toward the outer peripheral side
L, a lead-in area LIA, and a program area PA for starting recording from a preset program start address while avoiding the vicinity of the disk head address on the signal surface.
A unique information recording area KA prepared for recording, for example, a serial number as unique information for one optical disc recording / reproducing apparatus 1C (FIG. 8) on the user side, and a lead-out area LOA are sequentially arranged in the center hole CH. On the other hand, it is formed concentrically.

At this time, each track following the lead-in area LIA on the optical disc D2 is given an address in order from the disc start address, and is updated from a preset program start address at a position other than the disc start address. A program is recorded, and a program end address is set according to the program contents.

The update program described above is stored in the vicinity of the program start address and the program start address and the optical disk recording / reproducing apparatus 1C on the user side.
For example, a command for acquiring a model number and a serial number as unique information of one unit (FIG. 8), a model number of an optical disc recording / reproducing apparatus to be used for the optical disc D2 in which an update program is recorded, and A predetermined address of the unique information recording area KA for recording the serial number of the optical disk recording / reproducing apparatus 1C is stored therein, followed by a rewritable RAM of the flash memory 24 provided in the user-side optical disk recording / reproducing apparatus 1C. A control program for updating the area is stored in a program area PA on the optical disk D2.

Accordingly, a license fee is set for the update program recorded on the optical disk D2 so that the firmware can be updated for one optical disk recording / reproducing apparatus 1C (FIG. 8) on the user side.

Next, the operation of recording the update program on the optical disk D2 by the optical disk recording / reproducing apparatus 1B on the manufacturer side will be described with reference to FIGS. 4 and 7.

The update program is executed by the PC 3
2 is stored in an HDD (not shown) in
In the update program, a program start address of the update program on the optical disc D2 and a model number of an optical disc recording / reproducing apparatus to be used for the optical disc D2 on which the update program is recorded are stored in advance, and The following description is based on the assumption that the manufacturer knows the program start address and the model number of the model to be used.

Therefore, first, in STEP 11, it is asked whether an optical disk is mounted in the optical disk recording / reproducing apparatus 1B, and when the optical disk is not mounted (N
In the case of O), the CPU waits for the mounting of the optical disk. On the other hand, when the optical disk is mounted (in the case of YES), ST
Discrimination of the type of optical disk mounted in EP12
This is performed by applying a known technical idea disclosed in, for example, JP-A-00-11528. Incidentally, the optical disk recording / reproducing apparatus 1B
If the device is a DVD-RAM type dedicated machine, the step of discriminating the type of the optical disk can be omitted.

Here, a recordable / reproducible optical disk (=
(DVD-RAM) D2 is mounted in the optical disc recording / reproducing apparatus 1B, so that the type discrimination result of the optical disc is determined to be a recordable / reproducible DVD-RAM type. A condition is set for a component for which a condition is to be set corresponding to a possible DVD-RAM type.

Next, in STEP 13, a focus coil (not shown) in the PU 3 is driven in accordance with the DVD-RAM type capable of recording and reproduction to reproduce data from an objective lens (not shown) in the PU 3. Laser-Optical disk D
Focus on the signal surface of No. 2 (FOCSin).

Next, in STEP 14, the personal computer 31B connected to the optical disk recording / reproducing apparatus 1B is started, and the update program set to a position other than the disk start address on the optical disk D2 from the operation unit 33 is started. Enter the start address.

Next, in STEP 15, PU3 is moved to the program start address on the optical disk D2.

Next, in STEP 16, a write command from the PC main body 32 to the optical disc D2 is waited, and the write command reaches the optical disc recording / reproducing apparatus 1B (YES).
In step 17, the HDD in the PC main body 32 is
(Not shown), and sequentially reads the update programs stored in the PU.
3 to write from the program start address on the optical disk D1.

Next, in STEP 18, the optical disk D2
At the stage when the writing of the update program into the optical disk D2 is completed, the recording non-permission bit is recorded on the optical disk D2 as described above, and the optical disk D2 is set in the recording non-permission state. In the first embodiment, the recording non-permission / permission information creating circuit 43 uses “W
write-inhibit flag for dis
"k" information = "1" is created and recorded in the lead-in area LIA (FIG. 6) on the optical disk D2.

When the operation of STEP 18 is completed, the optical disk D2 of the first embodiment according to the present invention described above with reference to FIG. 6 is obtained.

(Regarding User Optical Disk Recording / Reproducing Method, Optical Disk Recording / Reproducing Apparatus and Optical Disk) FIG. 8 is a block diagram of a first embodiment for explaining a user optical disk recording / reproducing method and an optical disk recording / reproducing apparatus according to the present invention. FIGS. 9A and 9B are flow charts for recording and reproducing an optical disk on which an update program is recorded and a recording non-permission bit is recorded by using an optical disk recording / reproducing apparatus on the user side in the first embodiment (part 1); FIG. 10 is a flowchart (part 2) of recording and reproducing an optical disk on which an update program is recorded and on which a recording non-permission bit is recorded in the first embodiment using an optical disk recording / reproducing apparatus on the user side.

As shown in FIG. 8, the optical disk recording / reproducing device 1C and the personal computer device 31C used by the user in the first embodiment are the same as the optical disk recording / reproducing device 1C of the maker described above with reference to FIG. Device 31
The optical disk D2 recorded in C is applied, and each component in each device 1C, 31C is exactly the same as each component in the optical disc recording / reproducing device 1B and the personal computer device 31B used by the manufacturer described above. Therefore, the detailed description is omitted and only the illustration is shown. However, the difference from the optical disk recording / reproducing apparatus 1B on the manufacturer side is that the flash memory 24 provided in the optical disk recording / reproducing apparatus 1C on the user side is provided.
A control program (= firmware) for the CPU 22 is stored in a rewritable RAM area, and a model number (first unique information) and a serial number (first 2) is stored at the time of shipment from the factory.

Here, the operation of updating the firmware in the optical disk recording / reproducing apparatus 1C on the user side will be described step by step with reference to FIGS.

When rewriting the control program (= firmware) stored in the rewritable RAM of the flash memory 24 provided in the optical disk recording / reproducing apparatus 1C, first, in STEP 21, the optical disk recording / reproducing apparatus 1C It is inquired whether or not an optical disk is loaded therein. If no optical disk is loaded (NO), the process waits for loading of the optical disk, while if an optical disk is loaded (YES), S
Judgment of the type of optical disc mounted in TEP22
This is performed by applying a known technical idea disclosed in, for example, Japanese Patent Application Publication No. 000-11528. Incidentally, the optical disk recording / reproducing apparatus 1
If C is a DVD-RAM type dedicated machine, STEP for discriminating the type of optical disk can be omitted.

Here, the optical disk (= DVD-RAM) D2 on which the update program is recorded and on which the recording non-permission bit is recorded is loaded on the optical disk recording / reproducing apparatus 1.
Since the optical disk is mounted in C, the type determination result of the optical disk is determined to be a recordable / reproducible DVD-RAM type. The condition is set for the component for which the condition is to be set.

Next, in STEP 23, a focus coil (not shown) in the PU 3 is driven in accordance with the DVD-RAM type capable of recording and reproduction to reproduce from the objective lens (not shown) in the PU 3. Laser-Optical disk D
Focus on the signal surface of No. 2 (FOCSin).

Next, in STEP 24, the personal computer 31C connected to the optical disk recording / reproducing apparatus 1C is started to wait for a command to the optical disk D2 from the PC main body 32, and the read command reaches the optical disk recording / reproducing apparatus 1C. If (YES), in STEP 25 the PU
3, the PU 3 is moved while searching for the program start address of the update program recorded at a position other than the disk start address on the optical disk D2.

At this time, in the operation of searching for the program start address on the optical disk D2 by PU3, since there is no data between the disk start address and the program start address, a signal is output when PU3 reaches the program start address. Thus, it can be determined that the position is the position of the program start address.

Next, in STEP 26, the program start address A1 of the update program searched from the optical disk D2 by the PU 3 is stored in the memory 23 provided in the optical disk recording and reproducing apparatus 1C.

Next, in STEP 27, the update program recorded on the optical disk D2 is read by the PU3, and the read update program is passed to the PC body 32. Hereinafter, the update program operates on the PC main body 32.

Next, in STEP 28, the PC main body 32 that has received the update program starts executing the update program in accordance with a user's instruction.

Next, in STEP 29, the program start address A1 of the update program stored in the memory 23 in STEP 26 matches the program start address A2 of the update program previously stored in the update program. Whether or not C
The determination is made by the PU 22. Here, when both program start addresses A1 and A2 do not match (in the case of NO)
Then, it is determined that the update program has been copied from the disc start address on the CD-R or has been copied to the HDD, and all the processing ends. On the other hand, if both program start addresses A1 and A2 match (in the case of YES),
Move to STEP30.

Next, in STEP 30, "Write-inhibit flag ford" recorded in the lead-in area as an example of the recording non-permission bit recorded on the optical disk D2 as described above in the description of the manufacturer.
It is determined whether or not "isk" information is "1". "Wr
item-inhibit flag for dis
k information is “0” instead of “1” (in the case of NO), or “Write-inhibit flat”
If the “g for disk” information is not found, it is determined that the update program has been copied on a CD-R, HDD, or the like, or has been operated by the user, and all processing ends.

On the other hand, “Write-inhibit f”
When the “lag for disk” information is “1” (in the case of YES), the processing shifts to STEP31.

Next, in STEP 31, the recording-non-permission / permission information creating circuit 43 provided in the optical disk recording / reproducing apparatus 1C writes “Write-inhibit flag”.
By changing the “for disk” information from “1” to “0” and recording the changed “0” value in the lead-in area LIA (FIG. 6) on the optical disk D2, the optical disk D
2 temporarily becomes recordable.

Next, in STEP 32, the update
In accordance with an instruction to obtain, for example, a model number as unique information of the optical disc recording / reproducing apparatus 1C on the program,
The model number is Fl as nquery data (collation data)
It is called from the non-rewritable ROM area of the ash memory 24 and acquired in the memory 23.

Next, in STEP 33, the CPU 22 determines whether or not the model number obtained in the memory 23 matches the model number of the target model stored in the update program in advance. If the model numbers do not match (in the case of NO), it is determined that the update program is not for updating the firmware in the optical disc recording / reproducing apparatus 1C, and all the processing is terminated.

Next, in STEP 34, when the model numbers match, the serial number of one unit as the unique information of the optical disk recording and reproducing apparatus 1C is stored in the unique information recording area KA (FIG. 6) on the optical disk D2 specified in advance. Since the instruction to record is prepared in the update program, in this step, the unique information recording area KA on the optical disc D2 is set.
Asks if the serial number is already recorded,
If the serial number has already been recorded (in the case of YES), the flow shifts to STEP 35, while if the serial number is not recorded (in the case of NO), the flow shifts to STEP 37.

Next, in STEP 35, the optical disk D2
Since the serial number has already been recorded in the above unique information recording area KA, it can be determined that there is a record of updating the firmware in one of the optical disk recording / reproducing apparatuses on the user side before using this optical disk D2. Here, the serial number already recorded in the unique information recording area KA is
Read by 3

Next, in STEP 36, the optical disk D2
It is asked whether the serial number read from the unique information recording area KA above matches the serial number stored in the flash memory 24 in the memory 23 in the optical disc recording / reproducing apparatus 1C, and the two serial numbers match. If not (NO), the optical disk D2 is already used by another optical disk recording / reproducing device, and thus all the processing is terminated.

On the other hand, if the two serial numbers match (YES), the flow shifts to STEP37.

Next, in STEP 37, if it is determined in STEP 34 that the serial number is not recorded in the unique information recording area KA on the optical disk D2,
If the serial number matches the serial number recorded on the optical disk D2 in P36, it is asked whether the serial number can be recorded in the specific information recording area KA at a predetermined address set in advance by the update program, and the specific information is recorded. If it is determined that the serial number cannot be recorded in the area KA (in the case of NO), there is a possibility that data copied using a CD-R, an HDD, or the like may be used, so that all the processes are terminated. .

On the other hand, if it is determined that the serial number can be recorded in the unique information recording area KA (in the case of YES),
Move to TEP38. Note that the above STEPS 34 and 3
The judging operation of steps 6 and 37 is for judging whether or not the serial number is written.

Next, in STEP 38, the serial number retrieved from the memory 23 is sent from the CPU 22 to the recording circuit 30, and the serial number is recorded on the optical disk D2 by a recording laser beam from an objective lens (not shown) in the PU 3. In the unique information recording area KA.

Next, in STEP 39, each of the above STEs
As a result of clearing P, the firmware in the optical disc recording / reproducing apparatus 1C can be updated using the update program read from the optical disc D2, and the update program in the update program is provided in the optical disc recording / reproducing apparatus 1C. Flash memory 24
The update process is executed by storing the update process in the rewritable RAM area.

Next, in STEP 40, the recording-non-permission / permission information change circuit 43 provided in the optical disk recording / reproducing apparatus 1C executes the “Write-inhibit flag”.
By changing the "for disk" information from "0" to "1", the optical disk D2 returns to a state where recording is not possible again, and the update process is completed.

Then, as shown in FIG. 6, the optical disk D2 after updating the firmware in the optical disk recording / reproducing apparatus 1C on the user side has one in the unique information recording area KA.
The state is such that the serial number of the optical disc recording / reproducing apparatus 1C is recorded and the recording non-permission bit is recorded again in the lead-in area LIA.

In the first embodiment described above, the serial number is recorded in the unique information recording area KA (FIG. 6). However, the model number, the date and time when the update process was performed, and the like may be recorded.

Further, in the first embodiment, after recording a program or the like on the optical disk D2 at the time of supply to the user, the recording non-permission bit is recorded so that the user does not accidentally erase the data. For example, when there is no possibility that the data is erased or rewritten, the setting of the recording non-permission is not performed, and the release may not be performed even when the program is executed.

In the first embodiment, the serial number is assigned to the flash memory 24 provided in the optical disk recording / reproducing apparatus 1C.
However, in the case of an optical disk recording / reproducing apparatus in which the serial number is read from the non-writable ROM area but the serial number has not been written by the manufacturer at the time of shipment, it is notified via the BUS that the serial number cannot be obtained when the program is executed. The PC main body 32 displays an instruction for inputting the serial number on the monitor 34, and the user inputs the serial number from the operation unit 33, whereby the F
Since this is equivalent to writing the serial number in the flash memory 24, the technical idea of the first embodiment on the user side can be applied even in this case.

According to the above-described method, the update program checks the program start address and the like recorded on the optical disc D2 at the time of execution of the program at the time of the update process. Therefore, whether the used optical disc has been copied or not is determined. Can be determined. Further, at the time of performing the update process, the device model number and the serial number are acquired as Inquiry data which is the unique information of the optical disc recording / reproducing apparatus 1C on the user side, and the unique information recording area KA of the optical disc D2 is obtained at the first update process. And the serial number recorded on the optical disk D2 for each update process, and confirms whether the serial number of the optical disk recording / reproducing apparatus 1C on the user side matches. It can be determined whether or not the optical disk has been updated by another optical disk recording / reproducing apparatus. Further, when the serial number of the optical disk recording / reproducing apparatus 1C on the user side cannot be recorded at a predetermined address, there is a possibility that the optical disc recording / reproducing apparatus 1C is a duplicated CD-R, for example, so that the update process can be prevented from being performed. Became. As described above, if the optical disc D2 created by the optical disc recording / reproducing apparatus 1B on the maker side in the first embodiment is used, it is not possible to use only the program in the optical disc D2 by copying it to the HDD or CD-R.
In addition, only one optical disk recording / reproducing apparatus 1C on the user side can perform the update processing with one optical disk D2.

<Second Embodiment> (Regarding optical disk recording / reproducing method, optical disk recording / reproducing apparatus and optical disk on maker side) FIG. 11 shows an optical disk (= DVD-RAM) according to a second embodiment of the present invention on which an update program is recorded. FIG.

In the second embodiment, since the update processing can be performed on two or more user optical disk recording / reproducing apparatuses set in advance by the update program, the optical disk D3 on which the update program is recorded is particularly suitable. (FIG. 11). The optical disk recording / reproducing method and the optical disk recording / reproducing apparatus on the maker side in the second embodiment are different from the optical disk recording / reproducing apparatus on the maker side in the first embodiment described earlier with reference to FIG. Since the reproducing method, the optical disk recording / reproducing device 1B and the personal computer device 31B can be applied as they are, detailed description is omitted.

As shown in FIG. 11, the optical disk (= DVD-RAM) D3 of the second embodiment is also a DVD-RAM Ver that can be repeatedly recorded a plurality of times, similarly to the optical disk D2 (FIG. 6) of the first embodiment. . 2.1 The standard is applied.

Here, only the differences from the optical disc D2 of the first embodiment (FIG. 6) will be described. The number of optical disc recording / reproducing apparatuses on the user side permitted to use the update program is previously set to a plurality (N). Is set as the number of licenses L (where L is an integer of 2 or more) other than the program area PA and the unique information recording area KAN (where N is an integer of 2 or more and L or less) on the optical disc D3. And a command for acquiring, for example, a model number and a serial number as unique information for the L units of the optical disk recording / reproducing apparatus 1C (FIG. 8) on the user side in the update program. Each address of the unique information recording area KAN of L (two in FIG. 11) for recording the serial number of the optical disc recording / reproducing apparatus 1C, respectively. It has been paid. In FIG. 11, the unique information recording areas KA1, K
A2 is attached.

Therefore, a license fee is set for the update program recorded on the optical disk D3 so that the firmware can be updated by the number of licenses L of the optical disk recording / reproducing apparatus 1C (FIG. 8) on the user side.

(Regarding Optical Disk Recording / Reproducing Method, Optical Disk Recording / Reproducing Apparatus, and Optical Disk on User Side) FIG. 12 shows an optical disk in which an update program is recorded and a recording non-permission bit is recorded in the second embodiment.
FIG. 13 is a flowchart of recording / reproducing using an optical disc recording / reproducing apparatus on the user side (No. 1).
Flow chart of recording / reproducing an optical disk on which an update program is recorded and on which a recording non-permission bit is recorded using an optical disk recording / reproducing apparatus on the user side (part 2)
It is.

Here, when updating the firmware in a plurality of user-side optical disk recording / reproducing apparatuses using the above-described optical disk D3, the user-side optical disk recording / reproducing apparatuses 1C and 1C described with reference to FIG. Since the personal computer device 31C can be applied, FIG.
2 and FIG. 13 will be mainly described for operations different from those in the first embodiment.

In the operation flow in FIG. 12 and FIG. 13, the operations of STEP 21 to STEP 33 and STEP 3
The operations of Steps 4 to 40 are the same as those of the first embodiment.
In order to update N optical disk recording / reproducing apparatuses 1C for N users between STEP33 and STEP34, STEP51 to STE corresponding to the number of licenses L are performed.
P55 is additionally provided.

In FIG. 13, in STEP 33, the first
As described above in the embodiment, when the model number acquired in the memory 23 of the optical disk recording / reproducing apparatus 1C on the user side matches the model number of the target model stored in the update program in advance (YES Case), ST
In EP51, a count value N of a counter (not shown) is initialized (N = 0).

Next, in STEP 52, the optical disk D3
In the address where the number of licenses L is written above, P
Move U3 to acquire the number of licenses L. (In the following second embodiment, in the case of two licenses, the description will proceed with the number of licenses L = 2).

Next, in STEP 53, 1 is added to the counter value N.

Next, in STEP 54, the counter value N =
If N + 1 is, for example, the number of licenses L = 2, it is checked whether it is 3 or more. If the number of licenses L is larger than the preset number of licenses L = 2 and 3 or more (YES), the process is terminated. On the other hand, if the counter value is within 3 (NO), ST
In EP55, PU3 is moved to the address of the N-th corresponding unique information recording area KAN. Here, the first round is N =
Because of 1, the address moves to the address of the first unique information recording area KA1, for example, 0b31e0. Thereafter, the process proceeds to STEP 34 which is the same as in the first embodiment.
The operation after 34 will be briefly described.

Next, at step 34, the address 0b31e
If the serial number is written in the first unique information recording area KA1 of 0, the serial number written on the optical disk D3 is obtained in STEP35, and in STEP36, the serial number matches the serial number of the optical disk recording / reproducing apparatus 1C. Check whether or not. In the example, it is assumed that one unit has already been updated, the serial number of the first unit has already been written, and the serial numbers do not match. In this case, returning to STEP 53,
By adding 1 to the counter value N, N = 2, and STEP5
4 and the counter value N is 3 or less, the address of the second unique information recording area KA2 in STEP55, for example, 0c
Move PU3 to 2640.

Next, in STEP 34, the address 0c26
It is confirmed whether or not the serial number is written in the second unique information recording area KA2 of No. 40, and if it is not written (in the case of NO), STEP37 to STEP40 are executed, and if it is written, STEP35-STEP
Execute 40.

<Third Embodiment> (Regarding optical disk recording / reproducing method, optical disk recording / reproducing apparatus, and optical disk on manufacturer side) In the third embodiment, an optical disk recording / reproducing apparatus to be used for an optical disk D4 on which an update program is recorded is described. Since the unique information is stored in the update program in an encrypted state when the unique information is stored in the update program, the optical disc D4 (FIG. 14) on which the update program is recorded is particularly characterized. The optical disk recording / reproducing method and optical disk recording / reproducing apparatus on the maker side in the third embodiment are the optical disk recording / reproducing method and optical disk recording / reproducing apparatus on the maker side in the first embodiment described above with reference to FIG. 1B and personal computer device 31B can be applied as they are, so detailed description is omitted. I do.

Therefore, since the update program recorded on the optical disk D4 has, for example, a model number previously encrypted as unique information of the optical disk recording / reproducing apparatus to be used for the optical disk D4, the recorded data is analyzed. It is prevented from being erased or rewritten, and is more effective in copy protection.

(Regarding User Optical Disk Recording / Reproducing Method, Optical Disk Recording / Reproducing Apparatus and Optical Disk) FIG. 14 is a block diagram of a third embodiment for explaining the user optical disk recording / reproducing method and optical disk recording / reproducing apparatus according to the present invention. FIG. 15 and FIG.
FIG. 16 is a flowchart for recording and reproducing an optical disk on which a program is recorded and on which a recording disable bit is recorded by using an optical disk recording / reproducing apparatus on the user side;
In an embodiment, the update program is recorded,
FIG. 10 is a flowchart (part 2) of recording and reproducing an optical disk on which a recording disable bit is recorded by using an optical disk recording / reproducing apparatus on the user side.

As shown in FIG. 14, the optical disk recording / reproducing device 1D and the personal computer device 31D used by the user in the third embodiment are updated and updated as described above.
An optical disc D4 in which unique information of an optical disc recording / reproducing apparatus to be used is encrypted and recorded in a program is applied, and each of the apparatuses 1D and 31D is a user in the first embodiment described above with reference to FIG. For the optical disk recording / reproducing device 1C and the personal computer device 31C on the side, a unique information encryption circuit 46 for encrypting the unique information of the optical disk recording / reproducing device 1D, and the encrypted information in the update program recorded on the optical disk D4. And a decryption circuit 47 for decrypting the encrypted unique information in order to decode the unique information.

Here, the operation when updating the firmware in the optical disk recording / reproducing apparatus 1D on the user side using the above-mentioned optical disk D4 will be described with reference to FIGS. The explanation will be focused on.

In the operation flow shown in FIGS. 15 and 16, the operations of STEP 21 to STEP 34 and STEP 3
9 to 40 are the same as those in the first embodiment.
Between STEP34 and STEP39, STEP61 to STEP66 for decrypting the encrypted unique information in the update program recorded on the optical disk D4 and encrypting the unique information of the optical disk recording / reproducing apparatus 1D are provided.

In FIG. 16, in STEP 34, the first
As described above in the embodiment, the model model number acquired in the memory 23 of the optical disk recording / reproducing apparatus 1D on the user side,
When the model number of the target model stored in the update program matches the model number of the target model, the serial number of one unit is specified as the unique information of the optical disk recording / reproducing apparatus 1D by the update program.
Since an instruction to record in the unique information recording area on the optical disc D4 is prepared in the update program, it is asked in this step whether or not the serial number is already recorded in the unique information recording area on the optical disc D4. Is already recorded (in the case of YES), STEP6
Then, if the serial number is not recorded (in the case of NO), the process proceeds to STEP64.

Next, in STEP 61, the optical disk D4
Since the serial number has already been recorded in the upper part of the unique information recording area in an encrypted state, the encrypted serial number is read out and acquired by the PU 3, and this is decoded by the encrypted unique information decoding circuit 47. To enter.

Next, in STEP 62, the serial number is decrypted by the decryption circuit 47 for the encrypted unique information.

Next, in STEP 63, it is asked whether or not the decrypted serial number matches the serial number stored in the memory 23 in the optical disk recording and reproducing apparatus 1D, and the two serial numbers do not match. In this case (in the case of NO), since the optical disk D4 is already used by another optical disk recording / reproducing device, all the processing ends.

On the other hand, if the two serial numbers match (YES), the flow shifts to STEP64.

Next, in STEP 64, when it is determined in STEP 34 that the serial number is not recorded in the unique information recording area on the optical disk D4, or in STEP 6,
If the serial number matches the serial number recorded on the optical disk D4 in step 3, the serial number obtained from the memory 23 via the CPU 22 is encrypted by the unique information encryption circuit 46.

Next, in STEP 65, it is asked whether or not the encrypted production number can be recorded in a unique information recording area of a predetermined address set in advance by an update program, and the encrypted production number is recorded in the unique information recording area. If it is determined that cannot be recorded (in the case of NO), all the processing ends.

On the other hand, if it is determined that the serial number can be recorded in the unique information recording area (in the case of YES), the STE
The unique information encrypted by the unique information encryption circuit 46 in P66 is passed through the adder 45, the modulation circuit 29, and the recording circuit 30 and is recorded on the optical disk by a recording laser beam from an objective lens (not shown) in the PU3. It is recorded in the unique information recording area on D4.

Next, in STEP 39, each of the above STEs
As a result of clearing P, the firmware in the optical disc recording / reproducing apparatus 1D can be updated using the update program read from the optical disc D4. The update program in the update program is provided in the optical disc recording / reproducing apparatus 1D. Flash memory 24
The update process is executed by storing the data in a rewritable RAM.

Next, in STEP 40, the recording-non-permission / permission information change circuit 43 provided in the optical disk recording / reproducing apparatus 1D outputs “Write-inhibit flag”.
By changing the "for disk" information from "0" to "1", the optical disc D4 returns to a state where recording is not possible again, and all the operations on the PC main body 32 are completed.

At this time, the production number is encrypted by, for example, calculating the production number using the model number of the optical disc recording / reproducing apparatus 1D or using an encryption formula incorporated in the update program.

In the third embodiment, an example is shown in which the encryption is performed by the circuit in the optical disk recording / reproducing apparatus 1D. However, the encryption program is added to the program written in the flash memory 24 in the optical disk recording / reproducing apparatus 1D. The CPU 22 may also perform the processing, and further, the optical disk D4
The same effect can be obtained even if the encryption program is included in the program recorded in the PC and at least one of the PC main body 32 and the CPU 22 executes the encryption program.

Further, by combining the technical idea of the second embodiment with the third embodiment, it is possible to encrypt the unique information of a plurality of optical disk recording / reproducing apparatuses on the user side.

In the first to third embodiments, only the case where the firmware of the optical disk recording / reproducing apparatus 1C (or 1D) on the user side is updated has been described. However, the information is recorded on an optical disk which can be repeatedly recorded a plurality of times. If the program has the copyright, for example, application software can be similarly used.

As described above, the optical disk D2 is
(Or D3, D4), a program start address is set at a position other than the disk start address, and a specific address in the program, unique information of the optical disk recording / reproducing apparatus to be used for the optical disk, and First unique information of the optical disc recording / reproducing apparatus 1C (or 1D),
An instruction to acquire the second unique information and an instruction to record the second unique information at a predetermined address on the optical disk when the user acquires the second unique information are included in the program, and the program is stored on the optical disk. After recording from the program start address of the program, a recording non-permission signal for disabling recording is recorded on the optical disc, and when recording / reproducing the optical disc on the user side, the address of a specific position in the program read by the optical pickup is included in the program. If the address matches the specific address stored in the optical disk, the recording disable signal recorded on the optical disk is changed to a record enable signal, and thereafter, the optical disk recording / reproducing on the user side is performed by a command for acquiring the first unique information in the program. If the first unique information acquired from the program matches the unique information stored in the program, the second unique information is further acquired. The second unique information is acquired from the optical disc recording / reproducing on the user side by the instruction to perform the writing, and it is confirmed whether the acquired second unique information is written or not. The program is executed, and when the execution of the program is completed, the recording permission signal is returned to the recording non-permission signal and recorded on the optical disk. Cannot execute the program, it is possible to protect the copyright on the optical disk on which the program is recorded.

The optical disk D2 (or D3, D4)
By writing the number of unique information to be written to the disc at the time of shipment of the disc, it can be executed for a plurality of optical disc recording / reproducing apparatuses and the number of executions can be controlled.

Also, the optical disk D2 (or D3, D4)
Information of the optical disc recording / reproducing apparatus to be used for the optical disc recording / reproducing apparatus 1C (or 1
By encrypting the second unique information of D) and recording it on the optical disk, it is possible to prevent the recorded data from being analyzed and erased or rewritten, and to be more effective in preventing copying.

[0150]

According to the optical disk recording / reproducing method, the optical disk recording / reproducing apparatus, and the optical disk of the present invention described in detail above, an optical disk capable of repeatedly recording a plurality of times is used. The maker records a copyrighted program from a predetermined position on the signal surface of the player, and when the user reproduces the program, the maker sets a program start address at a position other than the disc start address on the optical disc And a command for acquiring a specific address in the program, specific information of the optical disk recording / reproducing apparatus to be used for the optical disk, and first and second specific information of the optical disk recording / reproducing apparatus on the user side, respectively. When the user acquires the second unique information, the second unique information is stored in a predetermined address on the optical disc. After recording the program from the program start address on the optical disk, a recording non-permission signal for disabling recording is recorded on the optical disk, and the recording of the optical disk by the user is performed. At the time of reproduction, if the address of the specific position in the program read by the optical pickup matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to a recordable recording permission signal,
Thereafter, when the first unique information obtained from the optical disc recording / reproduction on the user side matches the unique information stored in the program by the instruction for acquiring the first unique information in the program, the second unique information is further acquired by the instruction for acquiring the second unique information. Acquiring the second unique information from the optical disk recording / playback on the user side, and
After confirming the writing quality of the acquired second unique information, the second unique information is recorded at a predetermined address on the optical disk, and the program is executed. When the execution of the program is completed, the recording permission signal is not recorded. Since the signal is recorded back on the optical disk, the program cannot be executed even if the optical disk on which the program is written is duplicated, so that the copyright on the optical disk on which the program is recorded can be protected.

Also, the recording data is analyzed by encrypting the unique information of the optical disc recording / reproducing apparatus to be used on the optical disc and the second unique information of the optical disc recording / reproducing apparatus on the user side and recording it on the optical disc. It is prevented from being erased or rewritten, and is more effective in copy protection.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining an optical disk recording / reproducing apparatus used by a user in a conventional example.

FIG. 2 is a diagram for explaining a conventional optical disk (= CD-ROM) on which an update program is recorded.

FIG. 3 is a flowchart showing a conventional operation when updating firmware in the optical disk recording / reproducing apparatus shown in FIG. 1 using a conventional optical disk (= CD-ROM) on which an update program is recorded.

FIG. 4 is a block diagram of a first embodiment for explaining an optical disk recording / reproducing method and an optical disk recording / reproducing apparatus on the maker side according to the present invention.

FIG. 5 is a diagram showing an example in which an update program is recorded on an optical disk (= DVR-RAM) capable of repeating recording a plurality of times using an optical disk recording / reproducing apparatus on the maker side, and then a recording disable bit is recorded. FIG. 7A is a diagram showing a format when recording is performed, (A) shows a format when recording is not permitted, and (B) is a diagram showing a format when recording is permitted.

FIG. 6 is a diagram for explaining an optical disc (= DVD-RAM) of the first embodiment according to the present invention on which an update program is recorded.

FIG. 7 is a flowchart for recording an update program on an optical disk (= DVR-RAM) capable of performing recording a plurality of times using an optical disk recording / reproducing apparatus on the maker side in the first embodiment.

FIG. 8 is a block diagram of a first embodiment for explaining a user side optical disk recording / reproducing method and an optical disk recording / reproducing apparatus according to the present invention.

FIG. 9 is a flowchart (No. 1) of recording and reproducing an optical disk on which an update program is recorded and a recording non-permission bit is recorded using an optical disk recording / reproducing apparatus on the user side in the first embodiment. .

FIG. 10 is a flowchart (part 2) of recording and reproducing an optical disk on which an update program is recorded and on which a recording non-permission bit is recorded using an optical disk recording / reproducing apparatus on the user side in the first embodiment. .

FIG. 11 is a diagram illustrating an optical disc (= DVD-RAM) according to a second embodiment of the present invention on which an update program is recorded.

FIG. 12 is a flowchart (part 1) of recording and reproducing an optical disk on which an update program is recorded and on which a recording non-permission bit is recorded by using a user-side optical disk recording / reproducing apparatus in the second embodiment. .

FIG. 13 is a flowchart (part 2) of recording and reproducing an optical disk on which an update program has been recorded and a recording non-permission bit has been recorded using an optical disk recording / reproducing apparatus on the user side in the second embodiment. .

FIG. 14 is a block diagram of a third embodiment for explaining a user side optical disk recording / reproducing method and an optical disk recording / reproducing apparatus according to the present invention.

FIG. 15 is a flowchart (part 1) of recording and reproducing an optical disk on which an update program has been recorded and a recording non-permission bit has been recorded using an optical disk recording / reproducing apparatus on the user side in the third embodiment. .

FIG. 16 is a flowchart (part 2) of recording / reproducing an optical disk on which an update program is recorded and a recording non-permission bit is recorded using an optical disk recording / reproducing apparatus on the user side in the second embodiment. .

[Explanation of symbols]

 1B: Optical disk recording / reproducing device on the manufacturer side, 1C, 1D: Optical disk recording / reproducing device on the user side, 2 ... Pindle motor 3 ... Optical pickup (PU) 4 ... Preamplifier 5 ... Servo amplifier 15 ... Decoder 22 ... CPU 23 ... Memory 24 Flash memory 26 Demodulation circuit 29 Modulation circuit 30 Recording circuit 31B Manufacturer's personal computer 31C, 31D User's personal computer 32 Personal computer (PC) 33 Operation unit 34 Monitor 41 Address creation Circuit 42 ... Address reading circuit 43 ... Recording non-permission / permission information creation circuit 44, 45 ... Adder 46 ... Unique information encryption circuit 47 ... Decryption circuit of encrypted unique information D2, D3, D4 ... Optical disk

Continued on the front page F term (reference) 5B017 AA06 BA09 BB04 CA09 CA15 5B076 FA00 FC06 5D044 AB02 BC04 DE38 DE45 DE47 HL02 HL08 JJ03 5D090 AA01 BB04 CC01 CC04 DD03 GG34

Claims (7)

[Claims] 1. A manufacturer uses an optical disk capable of repeatedly recording a plurality of times, reproduces an address on the optical disk, and records a copyrighted program from a predetermined position on a signal surface of the optical disk. An optical disc recording / reproducing method, comprising setting a program start address of the program in a position other than a disc start address on the optical disc, and recording a specific address in the program and an optical disc to be used on the optical disc. Information specific to the reproducing apparatus and the first information of the optical disc recording / reproducing apparatus on the user side.
Instructions for acquiring the unique information and the second unique information and instructions for recording the second unique information at a predetermined address on the optical disk when the user acquires the second unique information are included in the program. After recording the program from the program start address on the optical disc,
An optical disk recording / reproducing method, wherein a recording non-permission signal for recording non-permission is recorded on the optical disk. 2. A manufacturer uses an optical disk capable of repeatedly recording a plurality of times, reproduces an address on the optical disk, and records a program having a copyright from a predetermined position on a signal surface of the optical disk. An optical disc recording / reproducing method, comprising setting a program start address of the program in a position other than a disc start address on the optical disc, and recording a specific address in the program and an optical disc to be used on the optical disc. A command for obtaining the encrypted unique information of the playback device, the first unique information and the second unique information of the optical disk recording / playback device on the user side, and a command for obtaining the second unique information on the user side. (2) An instruction for recording unique information at a predetermined address on the optical disc is stored in the program, and the The ram after recording from the program start address on the optical disc, the optical disc recording and reproducing method characterized by recording the record disable signal to be recorded not permitted on the optical disk. 3. A manufacturer uses an optical disk capable of repeatedly recording a plurality of times, reproduces an address on the optical disk, and records a copyrighted program from a predetermined position on a signal surface of the optical disk. An optical disc recording / reproducing apparatus, wherein a program start address of the program is previously set at a position other than a disc start address on the optical disc, and the program start address is input; Means for creating a recording non-permission signal of the following; a specific address in the program; unique information of an optical disc recording / reproducing apparatus to be used for the optical disc; (2) a command for acquiring each of the unique information, and when the user acquires the second unique information And an instruction for recording the second unique information at a predetermined address on the optical disk, and recording the program from a program start address on the optical disk, and recording the program on the optical disk after recording the program. Recording means for recording the recording non-permission signal. 4. An optical disk recording / reproducing method for recording / reproducing an optical disk recorded by the optical disk recording / reproducing method according to claim 1 by an optical disk recording / reproducing apparatus on a user side, wherein the optical disk reads out the optical disk during recording / reproducing. If the address of the specific position in the program matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to a recordable recording permission signal. The first unique information obtained from the optical disc recording / reproducing on the user side by the instruction for obtaining the first unique information in step 1) matches the unique information stored in the program, and further acquires the second unique information Acquiring the second unique information from the optical disk recording / reproducing on the user side, and Performs execution of said program said second specific information after confirming the writing quality of the acquired second unique information recorded at a predetermined address on the optical disk,
An optical disk recording / reproducing method, wherein the recording permission signal is returned to the recording non-permission signal and recorded on the optical disk when the execution of the program is completed. 5. An optical disk recording / reproducing method for recording / reproducing an optical disk recorded by the optical disk recording / reproducing method according to claim 2 by an optical disk recording / reproducing apparatus on the user side, wherein the optical disk reads out the optical disk during recording / reproducing. If the address of the specific position in the program matches the specific address stored in the program, the recording non-permission signal recorded on the optical disc is changed to a recordable recording permission signal. The first unique information obtained from the optical disc recording / reproduction on the user side by the instruction to obtain the first unique information in step 1 matches the encrypted unique information stored in the program and decrypting the encrypted unique information. Then, the optical disk recording on the user side is further performed according to a command for acquiring the second unique information. Acquiring the second unique information from the raw, and,
After confirming whether or not the acquired second unique information is written, the second unique information is encrypted, recorded at a predetermined address on the optical disk, and the program is executed. When the execution of the program is completed, An optical disk recording / reproducing method, wherein the recording permission signal is returned to the recording non-permission signal and recorded on the optical disk. 6. An optical disk recording / reproducing apparatus for recording / reproducing an optical disk recorded by the optical disk recording / reproducing method according to claim 1 on a user side, comprising: a recording permission signal for permitting recording of the optical disk; Means for creating a recording non-permission signal for disabling recording, and at the time of recording and reproduction of the optical disc, the specific address stored in the program and the address of the specific position in the program read by the optical pickup. If they match, the recording non-permission signal recorded on the optical disk is changed to the recording permission signal, and thereafter, it is obtained from the optical disk recording / reproducing on the user side by a command to obtain the first unique information in the program. If the first unique information matches the unique information stored in the program, the second unique information is further added. The second unique information is acquired from the optical disc recording / reproduction on the user side by a command to acquire the information, and the second unique information is written on the optical disc after confirming whether the acquired second unique information is written or not. Recording and reproducing means for recording the program at a predetermined address and executing the program, returning the recording permission signal to the recording non-permission signal at the stage when the execution of the program is completed, and recording the signal on the optical disc. An optical disk recording / reproducing apparatus characterized by the following. 7. On an optical disk having a copyrighted program recorded on a predetermined position on a signal surface which can be repeatedly recorded a plurality of times, a program start address of the program is set beforehand at a position other than the disk start address, And a specific address in the program, unique information of an optical disc recording / reproducing apparatus to be used for the optical disc, and a first address of a user-side optical disc recording / reproducing apparatus.
Instructions for acquiring the unique information and the second unique information, and instructions for recording the second unique information at a predetermined address when the user acquires the second unique information, are stored in the program. An optical disc characterized by recording a recording non-permission signal for disabling recording after recording from the program start address.