JP3967441B2 - Playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium on which data is recorded, a data reproducing apparatus for reproducing data recorded on the recording medium, and a data reproducing system for reproducing data recorded on the recording medium via a network or the like About.
[0002]
[Prior art]
In recent years, various types of recording media represented by, for example, tapes, disks, and semiconductor memories have been developed and appear on the market. Such a recording medium can be reproduced without any regional restrictions.
[0003]
However, as a real problem, when a movie or the like is recorded on a recording medium, there is a demand for a movie that can be reproduced in the order of distribution in which the countries of the world are divided into a plurality of regions.
[0004]
In addition, there is a demand for the restriction that recorded images cannot be reproduced locally due to reasons such as different principles, different values, and moral regulations.
[0005]
[Means for Solving the Problems]
  An object of the present invention is to provide an apparatus that devises a coping method when the apparatus region code and the medium region code do not match.
[0022]
[Means for Solving the Problems]
  This inventionIn a playback device that plays back information on a recording medium including a media region code and playback data used to manage whether playback of playback data is permitted in each region, in the region in which the playback device is used, Reproduced by the recording means for recording the apparatus region code used for managing the reproducing apparatus, the first reproducing means for reproducing the medium region code from the recording medium, and the first reproducing means In addition, a first determination unit that determines whether the medium region code matches the device region code recorded by the recording unit, and the first determination unit includes the medium region code and the device region code. A second reproduction means for reproducing the reproduction data from the recording medium when the two match, and the device region code; Second determining means for determining whether or not the update is permitted, and means for replacing the device region code recorded by the recording means with the medium region code reproduced by the first reproducing means. When the second determination means determines that the update of the device region code is permitted, the largest number of the same content among a plurality of medium region codes including the same content code Updating means for checking the media region code, playing the large number of media region codes from at least one recording medium, and updating the device region code to the contents of the media region code. It is characterized by.
[0023]
The recording medium of the present invention is played back on a playback device capable of playing back data from the recording medium, and the playback device can play back the data to be played back and the played back data. In the standard television system, whether or not it can be recorded is recorded with a medium region code for controlling each region.
[0024]
The recording medium of the present invention is played back on a playback device capable of playing back data from the recording medium, and the playback device can play back the data to be played back and the played back data. A media region code is recorded for controlling whether or not each area can be controlled.
[0025]
The recording medium of the present invention is played back on a playback device capable of playing back data from the recording medium, and the playback device can play back the data to be played back and the played back data. A media region code is recorded for controlling whether or not it is possible for each region of different values.
[0026]
The recording medium of the present invention is played back on a playback device capable of playing back data from the recording medium, and the playback device can play back the data to be played back and the played back data. A media region code for controlling whether or not it is possible for each region having a different language is recorded.
[0027]
The reproducing apparatus according to the present invention controls, for each region, reproduction data to be reproduced and whether or not the reproduction data can be reproduced in a reproduction apparatus capable of reproducing data from a recording medium. A recording medium for recording the device region code for each sales area of the playback device, and a first playback for playing back the media region code from the recording medium. Means for comparing the medium region code reproduced by the first reproducing means with the device region code of the recording means to determine whether or not the reproduced data recorded on the recording medium can be reproduced. And when the determination means determines that the data to be reproduced recorded on the recording medium can be reproduced. And a second reproducing means for reproducing the reproduced data from the recording medium.
[0028]
Whether the reproducing apparatus of the present invention can reproduce data to be reproduced, the date of creation of the reproduced data, and the reproduced data when data can be reproduced from a recording medium Media region code that controls whether or not for each region, time permission condition as the number of months from the creation date that is not restricted by the media region code, and specific data that is not restricted by the media region code. A recording unit that records a device region code for each sales area of the playback device, a determination unit that determines the current date and time, a setting unit that sets specific data, and a medium from the recording medium First reproduction means for reproducing a region code, medium region code reproduced by the first reproduction means, and the recording means A first judgment means for judging whether or not the data to be reproduced recorded on the recording medium can be reproduced by comparing with the device region code, and the first judgment means records the data on the recording medium. When it is determined that the reproduced data to be reproduced can be reproduced, the second reproduction means for reproducing the reproduced data from the recording medium and the first judgment means record the data recorded on the recording medium. When it is determined that the reproduction data cannot be reproduced, it is recorded on the recording medium according to the time permission condition as the number of months from the creation date and the current date and time determined by the determination means. Second judging means for judging whether or not the reproduced data to be reproduced can be reproduced, and when the second judging means judges that the reproduced data recorded on the recording medium can be reproduced, When the third reproducing means for reproducing the data to be reproduced from the recording medium and the first judging means determine that the data to be reproduced recorded on the recording medium cannot be reproduced, the recording medium Third determining means for determining whether or not the reproduced data recorded on the recording medium can be reproduced based on the specific data recorded on the recording medium and the specific data set by the setting means; and When the third judging means judges that the data to be reproduced recorded on the recording medium can be reproduced, the third judging means comprises fourth reproducing means for reproducing the reproduced data from the recording medium.
[0029]
The data reproducing system of the present invention includes a first recording unit that records at least transferable data, a second recording unit that records changeable data, and a transferable data recorded in the first recording unit. An output means for outputting at least a part of the data, and a control section for controlling data transfer from the first recording section to the output means or data transfer from the first recording section to the second recording section. The control unit has transferable data recorded in the first recording unit based on a comparison result between the data recorded in the first recording unit and the data recorded in the second recording unit. The control unit compares the content of the first data recorded in the first recording unit with the content of the second data recorded in the second recording unit, and performs data transfer. Control and the first data And third data having a content different from the second data is recorded in at least either the first recording unit or the second recording unit, and the comparison result between the first data and the second data The control condition for controlling the data transfer is changed based on the third data.
[0030]
The data reproducing system of the present invention includes a first recording unit that records at least transferable data, a second recording unit that records changeable data, and a transferable data recorded in the first recording unit. An output means for outputting at least a part of the data and a control section for controlling data transfer from the first recording section to the output means or data transfer from the first recording section to the second recording section; And the control unit is configured to transfer transferable data recorded in the first recording unit based on a comparison result between the data recorded in the first recording unit and the data recorded in the second recording unit. In the transfer control, based on at least one data content recorded in the first recording unit or the second recording unit, at least the first recording unit or the second recording unit is interposed by the control unit. In the recording section In which recorded data is changed.
[0031]
The data reproducing apparatus of the present invention is capable of reproducing data from a recording medium on which data is recorded, and a data reading unit for reading data from the recording medium, and a control for controlling transfer of data read from the data reading unit And a recording unit for recording rewritable data, the data read from the recording medium is compared with the data recorded in the recording unit, and recorded in the recording unit based on the comparison result Data can be updated.
[0032]
The data reproducing apparatus of the present invention is capable of reproducing data from a recording medium on which data is recorded, and a data reading unit for reading data from the recording medium, and a control for controlling transfer of data read from the data reading unit And a recording unit for recording at least a part of the data read from the recording medium, and at least a part of the data read from each recording medium is separately provided for each of the plurality of recording media. Recording is performed on the recording unit, and second data is generated using the recorded first data, and the control unit controls data transfer based on the second data.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0034]
FIG. 1 is a schematic explanatory diagram of an embodiment showing a data reproduction system of the present invention.
[0035]
In the following embodiments, a recording medium 1 which is a package medium such as a CD, a DVD video, a DVD-ROM, a DVD-R, and a DVD-RAM serves as a first recording unit as a “data providing side”.
[0036]
A “data receiving side” corresponds to a system constituted by the data reproducing apparatus 2 and the host computer 3. Data stored in the recording medium 1 is read by the data reading unit 4, is transmitted to the host computer 3 through the data bus 5, and is displayed on the display unit 6 such as a CRT or a liquid crystal / plasma display.
[0037]
The host computer 3 has a control unit 7, a cache memory 8 composed of RAM or EEPROM, and a second recording unit 10 composed of an HDD or an optical disk 9, and data sent via the data bus 5. May be recorded directly on the HDD, the optical disk 9 or the cache memory 8 without being displayed on the display unit 6.
[0038]
The data reproducing apparatus 2 has a control unit 11 and performs control related to transfer processing of data read by the data reading unit 4 to the host computer 3 side. Further, it has a recording unit 12 as a second recording unit composed of a non-volatile recording element such as an EEPROM, and the controller 11 reads the data recorded in the recording unit 12 as necessary to transfer control. To reflect.
[0039]
The recording medium 1 is rotationally driven by a disk motor 13.
[0040]
A data reproducing apparatus 2 shown in FIG. 2 reproduces data recorded on the recording medium 1 using focused light.
[0041]
FIG. 3 shows the structure of data contents to be recorded on the recording medium 1 that can be additionally written by the user. In the recording medium 1, data is reproduced by making light incident on the recording layer through a transparent substrate (not shown).
[0042]
An inner hole 21 is formed in the innermost circumference of the recording medium 1 for attaching to the data reproducing device 2 and performing eccentric alignment.
[0043]
The recording medium 1 includes a lead-in area 22, a user additional recording area (Data Area / Rewriteable Data Zone) 23, and a lead-out area (Lead-out Area) 24 in order from the inner periphery. The outermost periphery is the outer peripheral edge 25.
[0044]
The user additional recording area 23 includes an area where data is recorded and an area where the user can additionally record.
[0045]
A lead-in area 22 is composed of a reference signal section 26 in which a reference code is recorded from the inner periphery side, a control data section 27, and a rewritable pre-data section 28. The reference signal section 26 and control data The data is recorded on the part 27 from the beginning at the time of manufacture in the form of irregularities.
[0046]
The rewritable pre-data section 28 is recorded on the manufacturer side after the manufacture of the recording medium 1 is completed, and “authentication section of each recording medium” “data recording section regarding data change area” “test recording section” (FIG. (Not shown).
[0047]
In the control data section 27, data relating to manufacturing such as “recording medium manufacturing date”, “region code”, “user name or user organization name giving special permission”, and the like are described. The control data section 27 also describes physical format data relating to recording conditions such as linear velocity during recording, reproduction power, recording power, and recording pulse width.
[0048]
The lead-out area (Lead-out Area) 24 is composed of “authentication section of each recording medium”, “data description section regarding data replacement area”, “test recording section” (not shown in FIG. 2), and the like.
[0049]
FIG. 4 shows the structure of the read-only recording medium 1.
[0050]
On the innermost periphery of the recording medium 1, an inner hole 31 is attached to the data reproducing device 2 for eccentric alignment.
[0051]
The recording medium 1 includes a lead-in area 32 and a data area 33 in which data to be supplied to a user is recorded in order from the inner periphery, and the outermost periphery is an outer periphery 34.
[0052]
Data recorded mainly in the data area 33 is transferred to the host computer 3 via the data bus 5 in FIG.
[0053]
The lead-in area 32 includes a “region code (region code)” having regional data as well as the linear velocity and reproduction power at the time of reproduction, “recording medium manufacturing date” relating to temporal data, and data transfer control contents. The “transfer permission conditions” and the like are recorded as data at the time of manufacture (in advance).
[0054]
Although this transfer permission condition varies depending on the recording medium 1, “data reproduction apparatus 2 with which region code having different region code is permitted after which period has elapsed after manufacturing the recording medium” or “data reproduction apparatus with different region code” 2 also includes data such as designation of a special data reproducing apparatus 2 that permits data transfer, a specific user name, a specific organization name and a password / ID number.
[0055]
The specific data contents in the lead-in area 22 on the read-only recording medium 1 will be described with reference to FIGS.
[0056]
The data contents in FIGS. 5A and 6 are the same as the data contents in the control data section 27 of the recording medium 1 that can be additionally recorded by the user. The physical structure on the recording surface in the lead-in area 32 of the recording medium 1 has a fine concavo-convex shape as shown in FIG. 5A, and when the reproduction light passes through the fine concavo-convex area. Interference occurs between the reflected light from the flat base portion and the light reflected from the bottom (or peak) of the concavo-convex pit 34, and the substantial amount of reflected light decreases.
[0057]
Data reproduction is performed using this substantial change in the amount of reflected light. The level difference d of the concavo-convex shaped pit 34 is obtained under the condition that the refractive index of the transparent substrate of the recording medium 1 is n and the wavelength of the reproduction light is λ as a condition for obtaining a substantial change in the amount of reflected light therefrom.
0 <d <λ / (2n)
It is necessary to satisfy the conditions. Generally around
λ / (8n) ≦ d ≦ 3λ / (8n)
Is in the range.
[0058]
Similarly, as a condition for obtaining a substantial change in the amount of reflected light, the value of the width w of the concavo-convex pit 34 is the spot size on the recording surface of the reproduction light (1 / e when the center intensity is 1).²Need to be smaller than the width value). The data is recorded with significance in the interval between the pit start position 35 and the pit end position 36 (t1, t2, t3, t4, etc.).
[0059]
At the time of reproduction, the position where the intensity of reproduction light is changed is detected, and the pit start position 35 and the pit end position 36 are detected as shown in FIG. 5B, and the channel bit based on the clock shown in FIG. Using the interval as a reference (digital minimum interval), the interval between the respective start / end positions is quantized and cut out, and 1 is set at the interval position after quantization to obtain a digital reproduction signal. The data recorded in the form of concavo-convex pits 34 shown in FIG. 5A is recorded in advance at the manufacturing stage of the recording medium 1 and cannot be changed by the user.
[0060]
Therefore, the data recorded in the uneven pit 34 is very reliable data that cannot be falsified.
[0061]
FIG. 6 shows specific contents of a part of data in the lead-in area 32 recorded in the form of FIG. That is, as shown in FIG. 6, a VFO area 40, a manufacturing date area 41, a region code (region code) area 42, and an area 43 in which data relating to data transfer control is recorded are configured.
[0062]
The VFO area 40 recorded with a specific pattern comes first in the lead-in area 32.
[0063]
In FIG. 1, the disk motor 13 that rotates the recording medium 1 has uneven rotation. Therefore, the time reference interval when data is read by the data reading unit 4 and quantized at the channel bit interval varies slightly according to the rotation unevenness of the disk motor 13.
[0064]
In order to correct the influence of the rotation unevenness of the disk motor 13, the VFO area 40 where pits are formed at a specific interval before reading general data is read, and the reference clock frequency in the data reading unit 4 is adjusted (PLL Apply the frequency lock of the circuit).
[0065]
In this way, a portion where data relating to the recording medium 1 is recorded is arranged after the VFO area 40 for adjusting the reference clock frequency.
[0066]
As shown in FIG. 6, it has a manufacturing date area 41 in which the manufacturing date indicating the time when the master of the recording medium 1 was created is recorded as time data.
[0067]
Next, it has a region code region 42 regarding the region.
[0068]
As shown in FIG. 7, the region data is divided into six regions, and numbers # 1 to # 6 are assigned to the regions. In other words, the region code is divided into North America, Europe and Japan, Southeast Asia, Oceania and South America, Russia and Africa, and China. A 6-bit code is set as a region code corresponding to each region. In FIG. 6, when the value of RMA # m (m = 1 to 6) is “0”, data reproduction / transfer in that area is permitted, and when “1”, data reproduction / transfer in the corresponding area is not permitted. I have to.
[0069]
Accordingly, by setting the values of a plurality of RMA # m (m = 1 to 6) to “0”, data reproduction / transfer in a plurality of regions on the earth becomes possible.
[0070]
The # 1 region is in English-speaking countries such as the United States and Canada where NTSC broadcasts. In the area of # 2, the broadcasting system is UK with PAL, Europe such as France, the Middle East such as Jordan, and Japan with the broadcasting system NTSC. The # 3 region is in Southeast Asia such as Brunei and Cambodia. Area # 4 is Oceania such as Australia, Mexico, South America such as Brazil, and Latin America such as Bahamas. The # 5 region is part of Africa, excluding Egypt and South Africa, the former Soviet Union countries such as Russia, and parts of Asia such as India and Pakistan. The # 6 region is China in the communist zone.
[0071]
As described above, the recording medium 1 can have regional restrictions by the region code that divides the world into six regions.
[0072]
In addition, the recording medium 1 is a standard television system, as in the area of # 2, the broadcasting system is PAL in the UK, France and other European countries, Jordan and the Middle East, and the broadcasting system is NTSC in Japan. So you can have regional restrictions without any difference.
[0073]
In addition, the recording medium 1 can have regional restrictions corresponding to different principles and different values by using a different region code for China in the communist zone as in the region of # 6.
[0074]
Regional numbers are assigned in order according to the distribution order of movies (release time: release time).
[0075]
The region code area 42 is followed by an area 43 in which data relating to data transfer control is recorded. Initially, the time permission condition data 44 is recorded as “monthly” values as specific data. For example, when the value here is “24”, the value of the region code area 42 in FIG. 6 and the recording unit 12 in FIG. Even if there is a discrepancy between the region codes recorded therein, data reproduction and data transfer to the host computer 3 side are permitted.
[0076]
Next, permission condition data 45 relating to the user / data reproducing apparatus is recorded. Here, even if a region code mismatch occurs, a condition for permitting data reproduction / data transfer is recorded only for a specific data reproducing apparatus 2 or a user or organization whose password or ID number matches.
[0077]
As shown in FIG. 2, the recorded data is read from the recording medium 1 by an optical pickup 51. The signal read by the optical pickup 51 is supplied to an RF (Radio Frequency) amplifier 52 and a focus tracking control circuit 53, respectively. Among these, the RF amplifier 52 amplifies the signal output from the optical pickup 51 and outputs the RF signal to a level slice PLL (Phase Locked Loop) circuit 54.
[0078]
Further, the focus tracking control circuit 53 is based on a signal output from the optical pickup 51, and a focus error signal and a tracking error signal necessary for focus servo and tracking servo with respect to an objective lens (not shown) built in the optical pickup 51. Is generated. The focus tracking control circuit 53 controls an actuator (not shown) for driving the objective lens in the focus direction and the tracking direction based on these focus error signals.
[0079]
Further, the focus tracking control circuit 53 controls the actuator according to an instruction from the control unit 11 to control the movement of the read track by the lens kick, and controls the instantaneous movement to the target track in the range of about ± 100 tracks.
[0080]
The optical pickup 51 is moved in the radial direction of the recording medium 1 by a feed motor 55. The feed motor 55 is controlled by a feed motor control circuit 56 to which a tracking error signal output from the focus tracking control circuit 53 and a search instruction signal output from the control unit 11 are input.
[0081]
Further, the level slice PLL circuit 54 binarizes the input RF signal, and then generates 8-16 modulated data in which 1 byte is 16 bits, and a PLL clock synchronized with the 16-bit data. Is generated. The level slice PLL circuit 54 outputs 16-bit data and its PLL clock to the signal processing circuit 57. The signal processing circuit 57 generates a CLV (Constant Linear Velocity) control signal by detecting a periodic synchronization signal using the input PLL clock, and is output to the disk motor control circuit 58. The disk motor control circuit 58 controls the rotational speed of the disk motor 13 that rotates the recording medium 1 based on the input CLV control signal.
[0082]
The signal processing circuit 57 demodulates the input 16-bit data into data in which the original 1 byte is 8 bits by using the PLL clock. Then, the signal processing circuit 57 writes the demodulated 8-bit data into the correction RAM 59 using the PLL clock to perform error correction processing, and the data after the error correction processing is completed via the host I / F control circuit 60. Transfer to computer 3.
[0083]
The host I / F control circuit 60 also performs communication control with the host computer 3. The clock generation circuit 61 generates a clock having a reference frequency obtained by dividing the oscillation frequency from the crystal oscillator. The clock is generated by the signal processing circuit 57, the disk motor control circuit 58, and the host I / F control. It is output to the circuit 60.
[0084]
The operation of the optical disc apparatus is comprehensively controlled by the control unit 11.
[0085]
The optical pickup 51, the RF amplifier 52, the focus tracking control circuit 53, the feed motor control circuit 56, the feed motor 55, and the level slice PLL circuit 54 constitute the data reading unit 4.
[0086]
The optical pickup 51 has an IV conversion amplifier (not shown), and is composed of, for example, TA1244FN.
[0087]
The RF amplifier 52 is configured by TA1236F.
[0088]
The focus tracking control circuit 53, the feed motor control circuit 56, and the disc motor control circuit 58 are configured by TA1253FN and TC9420.
[0089]
The level slice PLL circuit 54 and the signal processing circuit 57 are configured by TC90A19F.
[0090]
The correction RAM 59 is configured by TC514800A.
[0091]
The control unit 11 is configured by TMP93CS42AF.
[0092]
When the data reading unit 4 goes to read the region code of the region code area 42 on the recording medium 1 and the manufacturing date of the manufacturing date area 41, it is determined whether or not this data is recorded in a fine uneven shape. This is performed by the control unit 11.
[0093]
This is performed in order to prevent unauthorized use (issuance of a pirated version, etc.) by recording a false region code and date of manufacture on the recordable recording medium 1 such as a DVD-R or DVD-RAM. .
[0094]
Unlike recording with a fine concavo-convex shape, in a recordable recording medium 1 such as a DVD-R or DVD-RAM, data is additionally recorded on a continuous groove meandering at a constant period. As shown in FIG. 8 (a), the reproduction signal level fluctuates in accordance with the meandering of the continuous groove, as shown in FIG. A signal obtained from the additionally recorded data appears in the lower line of the signal.
[0095]
A circuit for processing the signal is added to the RF amplifier 52 in FIG. 2, and a structural diagram of the main part is shown in FIG. In the RF amplifier 52, a preamplifier 71 for amplifying the signal from the optical pickup 51 is arranged, and the signal outputted therefrom is divided into two, one connected to the level slice PLL circuit 54, and the other to the peak detection circuit 72. Then, the process proceeds to the signal processing circuit 57.
[0096]
The peak detection circuit 72 includes a resistor R, a capacitor C, a Zener diode D, and a comparator 72a.
[0097]
The additional recording data signal appearing in (a) of FIG. 8 is removed by the peak detection circuit 72, and a signal obtained only from the meandering continuous groove as shown in (b) of FIG. 8 is extracted. The signal processing circuit 57 detects the amplitude and frequency of a signal that fluctuates at a constant period as shown in FIG. When the reproduction signal does not have a signal component that fluctuates at a constant cycle as shown in FIG. 8B, the data in which the region code and the date of manufacture of the recording medium 1 are recorded are recorded on the recording surface of the recording medium 1. It is considered that it is recorded with a fine uneven shape.
[0098]
Next, detailed functions relating to the region code of the data reproducing apparatus 2 will be described with reference to FIG.
[0099]
First of all, as an example that enables data service even if the region code does not match in the initial state,
1) A case will be described in which determination data for determining whether or not a data service is available is recorded in advance in addition to the region code, and permission for the data service is given using the data.
[0100]
In this case, as shown in FIG.
A] Region code assigned to the data playback device 2 itself
B] The last time the region code was set (or updated) in this recording unit 12
C] Current date
D] Data playback / transfer permission data for region code mismatch
E] Period until data playback / transfer when region code does not match
Etc. are recorded.
[0101]
The initial region code is set in advance by the manufacturer of the data reproducing apparatus 2 at the time of shipment.
[0102]
The optimum value as the “E” period until the data reproduction / transfer is permitted when the region codes do not match is different depending on the type of recorded data.
・ Data on movies, etc ... about 1 month
・ Data about PCs and information about application software ... Half a year
-Data related to basic OS such as Windows 3.1, 95, 97 ... about 2 years
・ Data related to accounting ... 7 years
Etc. is a guide.
[0103]
As shown in FIG. 1, when the data reproducing apparatus 2 is used as an external recording apparatus of the host computer 3, it is set to approximately half a year according to the above guidelines.
[0104]
In such a state, data reproduction processing will be described with reference to the flowcharts shown in FIGS.
[0105]
First, the control unit 11 reads data A to E recorded in the storage unit 12 when the data reproducing apparatus 2 is activated (ST1). When the recording medium 1 is newly attached (ST2) and data reading by the data reading section 4 is started (ST3), the optical pickup 51 is shown in the control data section 27 of the lead-in area 22 of FIG. 3 or shown in FIG. It moves to the lead-in area 32 (ST4), and reads the manufacturing date in the manufacturing date area 41 of the recording medium 1 and the region code in the region code area 42 (ST5).
[0106]
Thereby, the read manufacturing date and region code are supplied to the control unit 11 (ST6).
[0107]
First, the control unit 11 compares the date of manufacture from the recording medium 1 with “C] current date” recorded in the recording unit 12 (ST7). As a result of this comparison, when the control unit 11 determines that the date of manufacture from the recording medium 1 is newer than “C] current date” recorded in the recording unit 12 (ST8). “C] Current date” recorded in the recording unit 12 is updated with the date of manufacture from the recording medium 1 (ST9).
[0108]
Since the data reproducing apparatus 2 basically does not have a timer, “C” current date on the data reproducing apparatus 2 is set on the date of manufacture of the latest recording medium 1 attached to the data reproducing apparatus 2. Update.
[0109]
If the control unit 11 determines that the date of manufacture from the recording medium 1 is older in step 8, the control unit 11 proceeds to step 10.
[0110]
Next, the control unit 11 calculates a period between “C] the current date” and “B” the time when the region code was last set (or updated) in the recording unit 12 (ST10). When the control unit 11 determines that the calculated period is longer than “E] period until data reproduction / transfer when region code does not match” (ST11), “D” region code of the recording unit 12 is determined. The data reproduction / transfer permission / non-permission data ”for the mismatch is reset to the permission mode (ST12).
[0111]
On the other hand, if the control unit 11 determines in step 11 that the difference in period is shorter than “E] period until data reproduction / transfer when region code does not match”, the process proceeds to step 13.
[0112]
Next, the control unit 11 compares the region code from the recording unit 12 with the region code from the recording medium 1 (ST13). As a result of this comparison, if the control unit 11 determines that the two region codes match (ST14), the data area 33 in which data to be supplied to the user by the data reading unit 4 is recorded or additional recording by the user The data read from the area 23 is transferred to the host computer 3 side via the data bus 5 (ST15).
[0113]
If it is determined in step 14 that the region codes do not match, the temporal permission condition data 44 of the area 43 of the recording medium 1 is read by the optical pickup 51 (ST16).
[0114]
Thereby, the read time permission condition data 44 is supplied to the control unit 11 (ST17).
[0115]
Then, the control unit 11 performs the period from the recording medium 1 as the time permission condition data and the date of manufacture of the read recording medium 1 to the “C] current date from the recording unit 12. The elapsed time is compared (ST18). As a result of this comparison, when it is determined that the period is shorter than the elapsed time (ST19), the control unit 11 permits data reproduction / transfer (ST20). Thereby, the control part 11 transfers the data read from the data area 33 or the additional recording area 23 by the optical pickup 51 to the host computer 3 (ST21).
[0116]
If it is determined in step 19 that the period is longer than the elapsed time, the control unit 11 refers to “D] Data reproduction / transfer permission / non-permission data for region code mismatch” in the recording unit 12. (ST22) When the permission mode is determined (ST23), data indicating the permission mode is notified to the host computer 3 via the host I / F control circuit 60 (ST24).
[0117]
The host computer 3 displays the status on the display unit 6 such as a CRT (ST25), and requests the user to input a password or ID code.
[0118]
Next, the control unit 11 reads the permission condition data 45 in the area 43 of the recording medium 1 by the optical pickup 51 (ST26).
[0119]
As a result, the read permission condition data 45 is supplied to the control unit 11 (ST27).
[0120]
Then, control unit 11 transfers the permission condition data to host computer 3 (ST28).
[0121]
As a result of the above-described series of processing, when it becomes impossible to reproduce / transfer data in step 23 or the like, the control unit 11 stops reproducing and transferring data, and sends data indicating the stop to the host I / F The host computer 3 is notified via the control circuit 60 (ST29).
[0122]
There is also a method of disturbing the transfer data by sending a specific signal pattern from the control unit 11 to the host I / F control circuit 60 instead of stopping the reproduction and transfer of the data and mixing it with the reproduction data.
[0123]
Next, as an embodiment that enables data service even if the region code does not match in the initial state,
2) A description will be given of a first embodiment in which the contents of one region code are changed in accordance with the contents of the other region code when the region codes do not match.
[0124]
In the first embodiment, the region code change condition determination method changes the region code related to the regional data using the time data recorded in the recording unit 12 or the data related to data transfer control.
[0125]
In this case, as shown in FIG.
A] Region code assigned to the data playback device 2 itself
B] When the region code was last updated in this recording unit 12
C] Current date
F] Region code update permission / deny data
G] Period after renewal of region code until renewal is permitted
Is recorded.
[0126]
At the time of manufacturing the data reproducing apparatus 2, the manufacturer provisionally sets the region code corresponding to the manufacturing location, and sets the time when the manufacturing region code corresponding to [B] is set to be significantly larger than the actual time. Set the environment so that the region code can be easily reset automatically when it is installed on the user.
[0127]
In addition, the “G] period from when the region code is updated to when re-update is permitted” is set in advance by the manufacturer at the time of manufacture.
[0128]
In such a state, data reproduction processing will be described with reference to the flowcharts shown in FIGS.
[0129]
First, when the data reproducing apparatus 2 is activated, the control unit 11 reads data A to C and F to G recorded in the storage unit 12 (ST31). When the recording medium 1 is newly attached (ST32) and data reading by the data reading section 4 is started (ST33), the optical pickup 51 is shown in the control data section 27 of the lead-in area 22 of FIG. 3 or shown in FIG. It moves to the lead-in area 32 (ST34), and reads the manufacturing date in the manufacturing date area 41 of the recording medium 1 and the region code in the region code area 42 (ST35).
[0130]
Thereby, the read manufacturing date and region code are supplied to the control unit 11 (ST36).
[0131]
First, the control unit 11 compares the date of manufacture from the recording medium 1 with “C] current date” recorded in the recording unit 12 (ST37). As a result of this comparison, if the control unit 11 determines that the date of manufacture from the recording medium 1 is newer than “C] current date” recorded in the recording unit 12 (ST38), “C] Current date” recorded in the recording unit 12 is updated with the date of manufacture from the recording medium 1 (ST39).
[0132]
Since the data reproducing apparatus 2 basically does not have a timer, “C” current date on the data reproducing apparatus 2 is set on the date of manufacture of the latest recording medium 1 attached to the data reproducing apparatus 22. Update.
[0133]
If the control unit 11 determines that the date of manufacture from the recording medium 1 is older in step 38, the control unit 11 proceeds to step 40.
[0134]
Next, the control unit 11 performs “C” the current date ”,“ B ”from the recording unit 12 when the region code was last updated in the recording unit 12 and“ G ”after the region code is updated. It is determined whether or not re-updating is permitted from the “period until update is permitted” (ST40). As a result of this determination, when re-update is determined, the control unit 11 resets the “F] region code update permission / non-permission data” portion of the recording unit 12 to the permission mode (ST41).
[0135]
On the other hand, if the renewal is not determined in step 40, the control unit 11 proceeds to step 42.
[0136]
Next, the control unit 11 compares the region code from the recording unit 12 with the region code from the recording medium 1 (ST42). As a result of this comparison, when the control unit 11 determines that the two codes are coincident (ST43), the data area 33 in which data to be supplied to the user by the data reading unit 4 is recorded or the user additional recording area 23 Is read to the host computer 3 via the data bus 5 (ST44).
[0137]
If the two region codes do not match at step 43, the control unit 11 issues an inquiry to the host computer 3 side via the host I / F control circuit 60 as to whether to change the region code in the recording unit 12 (ST45). ).
[0138]
When a change is instructed in response to this inquiry, the control unit 11 updates the region code of the recording unit 12 with the region code from the recording medium 1 (ST46).
[0139]
Immediately after this region code is updated, the control unit 11 uses “C] the current date recorded in the recording unit 12 to“ B ”and finally updates the region code in this recording unit 12. "Time" is updated (ST47).
[0140]
The determination method of the region code change condition is not limited to the above method, and any method may be used as long as the region code related to the regional data is changed using the time data recorded in the recording unit 12 or the data related to the data transfer control. A method can also be used.
[0141]
For example, as shown in FIG.
A] Region code assigned to the data playback device 2 itself
B] When the region code was last updated in the recording unit 12
Have only.
[0142]
Thereby, when the recording medium 1 having a different region code is loaded, the control unit 11 reads the date of manufacture of the area 41 of the recording medium 1.
[0143]
Next, the control unit 11 subtracts [B] latest region code update time] from the recording unit 12 from the date of manufacture from the recording medium 1. When the subtracted value is larger than a predetermined date (for example, “+6 months” is set), the control unit 11 determines whether to change the region code. When the region code is updated based on the determination of the change permission, the date of manufacture from the recording medium 1 used at this time is “B” when the region code was last updated in the recording unit 12 in the storage unit 12. Update.
[0144]
As conditions for permitting region code update
The predetermined date for comparison with the value obtained by subtracting the latest region code update time of the recording unit 12 from the date of manufacture of the recording medium 1 is not limited to +6 months, but “1 month to 7 years”. You can set one of the values.
[0145]
Hereinafter, a method of updating the region code recorded in the recording unit 12 and updating the region code will be described with reference to the flowchart shown in FIG.
[0146]
As described above, a mismatch occurs between the region code of the recording medium 1 and the region code recorded in the recording unit 12, and the update permission condition for the change of the region code recorded in the recording unit 12 and the update time of the region code Is the easiest way to update
1. The control unit 11 of the data reproduction apparatus 2 notifies the host computer 3 of an inquiry about the change of the region code via the host I / F control circuit 60 (ST51).
[0147]
2. The control unit 7 of the host computer 3 displays an inquiry for changing the supplied region code on the display unit 6 (ST52). Thus, the display informs the end user and asks the end user whether to change the region code of the data reproducing apparatus 2.
[0148]
3. When an end user requests a region code change request from a keyboard or the like (not shown), the control unit 7 of the host computer 3 notifies the control unit 11 of the data reproducing apparatus 2 of the region code change request (ST53).
[0149]
4). Based on the returned region code change request, the control unit 11 of the data reproducing apparatus 2 changes the region code recorded in the recording unit 12 with the region code of the recording medium 1 read by the data reading unit 4. (ST54).
[0150]
5. Further, the control unit 11 of the data reproducing apparatus 2 compares the date of manufacture of the recording medium 1 read by the data reading unit 4 with the update time of the region code recorded in the recording unit 12 (ST55). The update time of the region code recorded in the recording unit 12 is changed according to the new date (ST56).
[0151]
Further, when “C] current date” is also recorded in the recording unit 12, the recording date is compared with the date of manufacture of the recording medium 1 read by the data reading unit 4. If the date of manufacture of 1 is newer, "C] current date" is updated. (Other than that, it is not updated.) Thereafter, the data in the recording unit 12 is updated with the value of “C] current date” as the region code update time.
[0152]
In this way, it can be updated on the end user side.
[0153]
However, when it is left to the end user to update the region code of the data reproduction device 2, the end user purchases a plurality of data reproduction devices 2 and sets the region codes of the respective data reproduction devices 2 to different values. In the format of the region code area 42 shown in FIG. 6, all the recording media 1 having different region codes can be read and transferred by setting all the “RMA # m” values 1 to 6 to “0”. It is easy to perform fraud such as setting.
[0154]
Therefore, it is desirable to update the region code in the data reproducing apparatus 2 not on the end user but on the provider or dealer (dealer) / update specialty store side.
[0155]
A method of updating the region code on the provider or update specialty store side via the network will be described using the data reproduction system shown in FIG.
[0156]
From the work efficiency to the determination of whether or not to change the region code is performed on the data reproducing apparatus 2 side. Since the process up to the specific determination is the same as the process using FIGS. 1 and 2 described above, the description thereof is omitted here.
[0157]
The region code is automatically updated by the server machine 80 owned by the provider or the update specialty store. The server machine 80 automatically creates a public key and a secret key used at the time of communication, and the host computer 3 on the user side that publishes the public key on the network also creates a public key and a secret key.
[0158]
When the control unit 11 in FIG. 18 determines whether or not to update the region code, the following processing shown in the flowcharts in FIGS. 19 and 20 is performed.
[0159]
1. The host computer 3 determines its own location on the earth from its own IP address on the network, and checks in advance the region code corresponding to the region where the host computer 3 is present (ST61).
[0160]
2. The data reproducing apparatus 2 sends the region code of the recording medium 1 read by the data reading unit 4 from the control unit 11 to the host computer 3, and simultaneously sends the region code change permission data to the host computer 3 side (ST62).
[0161]
3. As can be seen from the region code recorded in the region code area 42 of FIG. 6 described above, the recording medium 1 has a region code permitting a plurality of reproductions (a plurality of RMA # m are set to “1”). There is a case. The host computer 3 selects only the code that matches the region code of the host computer 3 from the region codes that are permitted to be reproduced, which are recorded on the recording medium 1 sent from the data reproducing device 2, and records it. It is regarded as a new region code to be updated to the section 12 (ST63).
[0162]
Next, when there is no code that matches the region code of the host computer 3 among the reproduction-permitted region codes recorded on the recording medium 1, the host computer 3 determines that the recording medium 1 being used is an unauthorized medium. Accordingly, the region code update process is canceled and the result is displayed on the display unit 6 (ST64).
[0163]
4). The control unit 11 compares the “C] current date recorded on the recording unit 12 with the production date recorded on the recording medium 1, and the newer date“ C ”is the current date. The data of the recording unit 12 is updated by the control unit 11 (ST65).
[0164]
5. The control unit 11 notifies the host computer 3 of the latest “C] current date” as the update time of the region code (ST66).
[0165]
6). “New region code to be updated” and “Public key issued on the host computer 3 side” “Region code update time” “Region code in the recording unit 12 and address where the region code update time is recorded” 3 scrambles with the public key issued by the server machine 80, and the scrambled data is transmitted to the server machine 80 (ST67).
[0166]
7. The server machine 80 decrypts the scrambled data sent with the secret key issued by itself, compares the new region code to be updated on the server machine 80 side with the transmission side IP address of the host computer 3, It is confirmed that the new region code matches the region code of the region where the host computer 3 is installed (ST68). The server machine 80 replies to the host computer 3 to change the proxy server (not shown) on the network in the case of mismatch (ST69).
[0167]
8). The content change of the recording unit 12 made of EEPROM or the like is changed using a vendor unique command that is not disclosed to general end users.
[0168]
Based on the data sent from the server machine 80, the control unit 11 encrypts a command for changing the contents of the designated address on the recording unit 12 using the public key issued by the host computer 3 on the server machine 80 side, The encrypted data is sent back to the host computer 3 side (ST70).
[0169]
9. The host computer 3 side decrypts the encrypted data with the secret key issued by itself, and sends the command issued by the server machine 80 to the control unit 11 as it is (ST71).
[0170]
This completes the description of the update using the network. As another embodiment, a method for changing the region code by bringing the data reproducing apparatus 2 directly to a provider, a dealer (dealer) or an update specialty store instead of using a network will be described.
[0171]
The provider, the dealer (dealer), and the update specialty store have the host computer 3 and the server machine 80 dedicated to the update, and are connected to the data reproducing apparatus 2 brought in through an interface such as SCSI, IDE, or RS232C. The later update method takes exactly the same process as the method using the network.
[0172]
Next, as an embodiment that enables data service even if the region code does not match in the initial state,
2) A second embodiment of the case where the contents of one region code are changed in accordance with the contents of the other region code when the region codes do not match will be described.
[0173]
In the second embodiment, a plurality of recording media 1 are used for the data reproducing device 2 and recorded in the recording unit 12 in accordance with the region code having the largest total value of the region code numbers of the respective recording media 1. The region code related to the regional data is updated.
[0174]
In the first embodiment, the case where the region code is provisionally added at the time of shipment at the creation place (manufacturer) of the data reproducing device 2 has been described. However, in the second embodiment, the region code can be set for the first time after the use of the plurality of recording media 1 without setting the region code at the time of shipment.
[0175]
In this case, the data reproducing apparatus 2 permits reproduction from the recording medium 1 having any region code before setting the region code.
[0176]
The data reproducing apparatus 2 in the second embodiment has a place for recording the history of the region code that the recording medium 1 used in the past has.
[0177]
As a place for recording the region code history, the recording unit 12 including the EEPROM of FIG. 1 is also used, and the region code recognized by the recording medium 1 and the update time of the region code are recorded. The region code history is recorded at an address different from the location.
[0178]
In addition to the above embodiment, a semiconductor memory such as an EEPROM is separately provided as a third recording unit (not shown in FIG. 1) separately from the recording unit 12, and each past recording medium 1 is provided here. It is also possible to record the region code and the date of manufacture of the recording medium 1.
[0179]
Next, the history contents of the region code for each recording medium 1 recorded in the recording unit 12 will be described with reference to FIGS.
[0180]
In FIG. 21, horizontal rows correspond to individual recording media 1. The data reproducing device 2 arrives at the user's hand, and the first recording medium 1 used by the user is reproduced on the region of “November 1, 1996” and the region code “1” and “2”. In the recording unit 12, the data is recorded in the “first row” in the recording unit 12 and “1” is recorded in the use flag column of the recording medium 1 as shown in FIG.
[0181]
Each time the data reproducing apparatus 2 newly uses the recording medium 1, a new line is added. In this application example, the region code is not set when the data reproducing apparatus 2 is manufactured, and the region code is automatically set for the first time after the 11 recording media 1 are used.
[0182]
Accordingly, as shown in FIG. 21, when only 5 sheets are still used, the user can reproduce the recording medium 1 having any region code without restricting the transfer of information. At this time, every time the recording medium 1 is put on the data reproducing apparatus 2, the display unit 6
“After purchasing this optical disc device (data playback device 2), you can play discs in any region up to 11 discs as a service, but please use the discs used in your region as much as possible. Will only work with discs sold in your area. "
Is displayed.
[0183]
When the user uses the 11th sheet, all fields are filled as shown in FIG. Each time the use of the recording medium 1 is started, the control unit 11 of the data reproducing apparatus 2 reads “total value (cumulative value)” of “usage flag of recording medium 1”. When the total value becomes “11”, the following processing is performed, and the control of the region code check of the recording medium 1 is started from the 12th sheet.
[0184]
(1) The total value (cumulative value) of each region code is read, and the region code value with the highest region code occurrence frequency (the total value is maximized) is automatically set as the region code of the data playback device 2 (recording unit) 12) or is updated.
[0185]
(2) If there are multiple maximum values for the total value of each region code
(A) Priority is given to the region code of the recording medium 1 close to the last (11th sheet).
(B) Priority is given to the region code of the recording medium 1 with the oldest manufacturing date.
Set one region code according to the sequence.
[0186]
(3) The latest date of manufacture of the recording medium 1
It is automatically set (recorded at another address in the recording unit 12) as “time when the region code is set (or updated)”.
[0187]
However, the embodiment of the present invention is not limited to the above method. For example, the latest date of manufacture of the recording medium 1 is set as the current time of the data reproducing device 2, and the time when the region code is set is recorded. It is also possible to set the oldest date in the date of manufacture of the medium 1 at the time when the region code is set.
[0188]
In addition, as described above, when the region code is not set at the time of shipment at the creation place (manufacturer) of the data reproducing apparatus 2 and the region code is set for the first time after using the plurality of recording media 1, 11 recording media 1 are provided. The region code of the data reproducing apparatus 2 is set for the first time after use.
[0189]
In addition, when a region code is provisionally added at the time of shipment, the contents of the region code provisionally added are updated after 11 recording media 1 are used. In this case, for the first 11 recording media 1 to be used, even if there is a mismatch between the region code provisionally set in the data reproducing device 2 and the region code of the recording medium 1, the data is reproduced and transferred. Allow. After the update, when the region code recorded in the data reproducing apparatus 2 and the region code of the 12th and subsequent recording media 1 do not match, data reproduction or data transfer is prohibited.
[0190]
In this applied embodiment, it is desirable that the number of recording media 1 used before setting the region code is 3 or more and 100 or less. This is because there are many cases where a plurality of region codes are registered in one recording medium 1 as can be seen from FIG. For example, region codes “1” and “2” are registered in the first recording medium 1 in FIG.
[0191]
Therefore, when setting (or updating) the region code of the data reproducing apparatus 2 according to this application example, only one recording medium 1 is used to set one type of value as the region code of the data reproducing apparatus 2 (or Update) becomes impossible. Accordingly, a plurality of (at least three or more) recording media 1 are required.
[0192]
In addition, it is not preferable for the user to allow the region code mismatch for a long time after purchasing the data reproducing apparatus 2. That is, it is not preferable to permit reproduction of the recording medium 1 or transfer of reproduction data in an unusable area.
[0193]
For example, when the user uses three recording media 1 per day, about 90 recording media 1 are used in one month (about 30 days). When disabling the region code mismatch in about one month, it is preferable to set (or update) the region code of the data reproducing device 2 when 100 recording media 1 are used.
[0194]
It is most preferable to set (or update) the region code at the 11th or 5th sheet as an intermediate value on the log scale between 3 and 100 sheets.
[0195]
The eleventh or fifth and fifth recording media 1 are attached at the time of shipment and may be packaged in a sealed state. Alternatively, a commercially available product may be used.
[0196]
Basically, after the region code is set (or updated) on the 11th or 5th image, the region code of the data reproducing device 2 is not updated. However, if the update permission condition for the update timing of the region code as described above is satisfied, the region code can be further updated.
[0197]
A processing method in this case will be described below.
[0198]
In the description so far, the method for recording the region code history of the first 11 recording media after the purchase of the data reproducing apparatus 2 has been described. However, when the 12th and subsequent recording media 1 are used, The region code related data of all the recording media 1 including the recording media 1 for which data reproduction or data transfer is prohibited due to the region code mismatch is recorded in the “11th” row of FIG. Shift up line by line.
[0199]
And each time
“[Date of manufacture of recording medium 1 recorded in the 11th row] − [B] Time of latest region code update”
Calculate When this calculated value is larger than a predetermined date (for example, “+6 months” is set), the control unit 11 issues a region code change permission, and when the region code is updated, the record recorded in the 11th row The date of manufacture of the medium 1 is updated as it is as “B” time when the region code was last updated in the recording unit 12.
[0200]
As described above, it has been described that the number of recording media 1 used for setting the region code of the data reproducing apparatus 2 is preferably 11 or 5 between 3 and 100, but not limited thereto, as described below. An explanation will be given of the fact that an odd number of sheets is desirable and the condition of 3 to 100 sheets may be deviated as long as the condition is satisfied.
[0201]
That is, the data for each recording medium 1 recorded in the recording unit 12 as shown in FIG. 22 is registered “every time a new recording medium 1 is attached to the data reproducing apparatus 2”. Therefore, even when the user has only two recording media 1 and uses them alternately, the data of the used recording media 1 is sequentially registered in the recording unit 12.
[0202]
For example, when the region code of the data reproducing apparatus 2 is set using the region code of the even number of recording media 1, when the example of FIG. The number of recording media 1 to be used with the code 6 ″ is 5. As described above, when there are multiple maximum values for the total value of each region code,
(2) If there are multiple maximum values for the total value of each region code
(A) Priority is given to the region code of the recording medium 1 close to the last (10th sheet).
(B) Priority is given to the region code of the recording medium 1 with the oldest manufacturing date.
Set one region code according to the sequence.
[0203]
In this sequence, the region code of the data reproducing apparatus 2 can be set to “6”.
[0204]
However, in order to avoid a phenomenon in which a plurality of maximum values of each region code are generated as much as possible, a contrivance is made that “the number of recording media 1 used to set the region code of the data reproducing apparatus 2 is an odd number”. Is desirable.
[0205]
In contrast to the method of using an even number (for example, 10 sheets) of recording media 1 as shown in FIG. 23, if an odd number (for example, 11 sheets) of recording media 1 is used as shown in FIG. The number of used recording media 1 of region code 3 ”is six and the number of used recording media 1 of“ region code 6 ”is five, and it is difficult for a plurality of maximum values of the total value of each region code to be generated.
[0206]
If a tie break occurs when the majority of region codes are determined by the eleven recording media 1, the next recording medium 1 determines the tie break.
[0207]
Further, as shown in FIG. 25, copyright usage expiration date data 46 may be further recorded in the area 43 in which data relating to data transfer control described above with reference to FIG. 6 is recorded. By limiting the expiration date of copyright use, that is, by setting a time limit for reproducing data, it is possible to set (contract) the copyright fee at a low cost by limiting the copyright use period. The expiration date data 66 for the copyright use shows the range of the valid period from what year, what month, what year, what month, what day, whatever the year, month, day. There may be.
[0208]
In this case, the data reproducing apparatus 2 uses the copyright expiration date data 46 to read data read from the data area 33 or the additional recording area 23 of the corresponding recording medium 1 via the data bus 5. Forward to the side.
[0209]
That is, the data reproducing apparatus 2 uses the copyright expiration date 46 read from the area 43 in which the current date recorded in the recording unit 12 and the data relating to the data transfer control of the recording medium 1 are recorded. And compare. As a result of the comparison, when the current date exceeds the expiration date for using the copyright (or is outside the valid period), the data reproducing apparatus 2 does not transfer the data. As a result of the comparison, when the current date does not exceed the expiration date for using the copyright (or is within the valid period), the data reproduction device 2 transfers the data.
[0210]
In each of the above-described embodiments, the data reproduction system including the data reproduction device 2 and the host computer 3 has been described. However, the present invention is not limited to this, and data is transferred using a network such as the Internet. The same can be applied to the data reproduction system in the network field in which the displayed data is displayed on the CRT screen or displayed by printing on paper.
[0211]
The network such as the Internet includes both wired and wireless using radio waves and light.
[0212]
A data reproduction system in the network field will be described with reference to FIG.
[0213]
First, a description will be given of a method of recording determination data for determining whether or not a data service is available in advance other than the region code, and giving permission for the data service using the data.
[0214]
That is, in the data providing service on the network, the “data supplying side” is the database server 91, and the data to be provided is stored in the first recording unit 92 configured by an HDD or an optical disk. When the region code (region code) that specifies the region that can be provided for each data unit provided here is added as the first data and does not match the region code of the data receiving side that is the second data In this case, the control unit 93 that controls the data transfer operates to stop the data transfer, and instead, an error message is sent to the client side. As this error message, the content that the data cannot be provided because of the region code mismatch is transferred.
[0215]
As another example, in place of stopping data transfer, noise data is added to the transfer signal from the control unit 93 during data transfer to change the content of the transfer data. In this case, the provided image is disturbed.
[0216]
Further, the date of creation of data is set in the first recording unit 92 for each piece of data provided to the client as the third data related to the temporal data.
[0217]
In addition, the first recording unit 92 also records transfer permission condition data for each data.
[0218]
The database server 91 includes a timer (not shown). In general, data transfer is stopped when the region code does not match as a data transfer control condition, but the data transfer condition can be changed based on the third data.
[0219]
That is, the control unit 93 reads the current date and time from the timer built in the database server 91, reads and compares the date of creation of the data from the first control unit 92, and compares it with a specific time after the data is created. After the elapse of the permission condition, the control unit 93 permits data transfer. The elapsed time for permission is set to 1 month to 7 years depending on the type of data.
[0220]
For example, the difference depending on the region where movie screenings are to be closed is short and deviates about every one month, so the permission period for data relating to movies is set to one month. Currently, the generation change and version upgrade period of personal computers and application software is about half a year, so the data for items with a short generation change period is half a year.
[0221]
Further, as can be seen from the periods of Windows 3.1, 95, and 97, the basic OS changes with a period of about two years. Therefore, the data related to this is set with 2 years as a guide. In Japan, tax books are required to store past books for 7 years. Therefore, for data related to accounting, 7 years is set as the permission period.
[0222]
In other application examples, the client side sends the user name and the organization name to which the user belongs as data transfer control data along with the data supply request, and even if the region code does not match, the data transfer control conditions change only for specific users It is also possible to transfer data.
[0223]
Next, a method for changing the contents of one of the region codes in accordance with the contents of the other region code when the region codes do not match will be described.
[0224]
That is, the “data receiving side” is a PC or EWS 95 connected via the network proxy server 94 as the client side. A region code, which is first data as regional data added for each supplied data, is recorded in advance in the first recording unit 92 of the database server 91.
[0225]
The client side has a display unit (output unit) 96 that performs software display such as a CRT and a display unit (output unit) 97 that performs hardware display such as a printer, and the second recording unit 98 is an HDD or an optical disk. It has a memory 99 capable of large-capacity recording and a cache memory 100 such as RAM and EEPROM. Further, instead of the display units 96 and 97, a speaker (output means) (not shown) that generates sound may be provided.
[0226]
Each client-side PC or EWS 95 has a control unit 101 mainly including one or a plurality of high-speed CPUs.
[0227]
When requesting the data supply service to the database server 91, “requested data content” “region code specifying the location (region) where the client PC or EWS 95 is installed (the data is stored in the second recording unit 98). "Data recorded in advance" "" User name (including organization name) "" User ID number "" Public key data that can be disclosed to the database server 91 among the public key / private key created by the user " Is scrambled with the public key published by the database server 91 and sent to the database server 91.
[0228]
Normally, if the region codes match, the control unit 93 checks the IP address of the client side PC or EWS 95 contained in the communication protocol packet at the time of data supply request, determines whether the region code is correct, and transfers the data. In response to the permission, the desired data is scrambled with the public key issued by the client PC or EWS 95 and then sent to the PC or EWS 95.
[0229]
The control unit 101 of the PC or EWS 95 decompresses the sent data with a secret key created in advance, and displays it on the display unit 96 or the display unit 97 as it is. Instead of being displayed on the display units 96 and 97, the application software and data necessary for reprocessing are directly stored in the second recording unit 98 after being decompressed with the secret key.
[0230]
For example, when a client-side PC or EWS 95 previously used in Japan is moved to the United States, the region code recorded in the second recording unit 98 needs to be changed.
[0231]
More specifically, the data is recorded in the second recording unit 98 in accordance with the region code representing the region data which is the first data recorded in the first recording unit 92 corresponding to the data desired to be supplied. Therefore, it is necessary to update the region code indicating the regional data that is the second data.
[0232]
If the user can frequently update the region code, for example, it is easy to cheat by changing to the US region code in a timely manner according to the data that they want to receive while in Japan.
[0233]
Therefore, the control unit 101 is programmed so that the region code cannot be updated frequently. Therefore, the second recording unit 98 records “the time when the region code was updated as time data”, and compared with the timer of the client PC or EWS 95, one month to seven years after the region code update. The region code can be changed after a certain period.
[0234]
Further, as another embodiment, “region code change permission / non-permission data as data transfer control data” can be recorded in the second recording unit 98, and only when a specific user authenticates a specific password, “region code permission There is also a method in which “data” is given in advance and the control unit 101 updates the region code in the second recording unit 98 in accordance with the permission status.
[0235]
As another embodiment, there is a method of changing the region code which is the region data recorded in the cache memory 100 of the second recording unit 101 on the database server 91 side.
[0236]
When the user wishes to change the region code, the "region code number after the desired change" "public key code issued on the client PC or EWS side" and "when the region code was recently updated" or "user name, user organization The database server 91 is scrambled with the public key issued in advance by the database server 91 such as a name and a user-specific password that satisfies the update permission condition, and issues a request to the database server 91 side.
[0237]
In this case, the public key issued in advance by the database server 91 can be viewed by a third party, and is issued by registering with a certificate authority via the network of the corresponding database server.
[0238]
The database server 91 side decrypts the data with the private key issued by itself and collates the desired region code after the change with the IP address of the sender.
[0239]
In rare cases, when the distance between the proxy server 94 and the client-side PC or EWS 95 is long and the collation results do not match, the user is answered to make a request again after changing to the proxy server 94 that is close as the communication path. When the region code change permission conditions are met, the database server 91 side scrambles a vendor-unique hidden command for changing the contents of the cache memory 100 with the public key and sends it back to the client side. The control unit 101 on the client side cancels it using the secret key issued by itself, crumbles the command, and sends it back to the client side. The data is sent to the cache memory 99 by the control unit 101 on the client side.
[0240]
The first recording unit 92 corresponds to the recording medium 1 shown in FIG. The first information corresponds to the region code in the region code area 42 in FIG. The second information corresponds to the region code assigned to the data reproducing device 2 itself shown in FIGS. The third information corresponds to time information determined from the manufacturing date in the manufacturing date area 41 of FIG. 6 and the temporal permission condition data 44 in the area 43 or the permission condition data 45 in the area 43. .
[0241]
As described above, since the region code and the date of manufacture are recorded on the recording medium in the form of fine irregularities, the recording data is not deteriorated due to recording film deterioration or the like, and very stable recording can be performed.
[0242]
In addition, since the reproduced signal waveforms when recorded on a DVD-R or DVD-RAM are different, it is possible to easily remove counterfeit recording data by an end user using the DVD-R or DVD-RAM.
[0243]
Therefore, the data can be highly reliable in terms of the use environment.
[0244]
In the data reproducing apparatus,
(1) Using data other than the region code, data reproduction / transfer is possible even when the region code does not match.
[0245]
(2) Change one of the region codes when the region codes do not match
It is possible to remedy when the region code does not match using at least one of the following methods.
[0246]
In addition, since the region code in the recording unit built in the data playback device cannot be updated for a certain period after the update, it is illegal for the end user to change the playback to match the region code of each recording medium. Can be prevented.
[0247]
Further, since the reproduction-dedicated signal based on the reproduction signal waveform is discriminated from the signal that can be additionally recorded by the user, forgery recording can be easily eliminated by the end user, and the region code can be processed with high reliability.
[0248]
Conventionally, a nonvolatile memory such as an EEPROM has been incorporated as a data storage location for a sequential program or the like of a data reproducing apparatus. By recording region code and region code update time in its non-volatile memory without changing the hardware structure of the conventional data playback device, that is, without any cost increase, the region code can be managed with high reliability. it can.
[0249]
Furthermore, since the content change command of the nonvolatile memory such as EEPROM is a vendor-unique command unknown to the general end user, the end user cannot easily change the region code due to fraud.
[0250]
As a data playback system,
(1) Using data other than the region code, data reproduction / transfer is possible even when the region code does not match.
[0251]
(2) Change one of the region codes when the region codes do not match.
[0252]
It is possible to remedy when the region code does not match using at least one of the following methods.
[0253]
In addition, after updating one of the two recording parts, it cannot be updated for a certain period of time, so the region code recorded in the recording part closer to the end user is frequently changed to a different region. It prevents fraud by end users who collect data from around the world with code.
[0254]
In addition, since the region code of the region where the host computer is installed is determined from the IP address and compared with the region code recorded on the recording medium, the data reproducing apparatus using an unauthorized recording medium used outside the region Unauthorized change of the region code can be prevented.
[0255]
In addition, the time is monitored based on the region code so that the contents of the recording medium can be output. The timer for monitoring the time is the date of manufacture from the recording medium when the latest recording medium is entered. The one updated by is used.
[0256]
This eliminates the need for hardware and does not require a battery for managing the timer.
[0257]
In addition, the period during which the content of the recording medium can be reproduced can be limited. For example, it can be limited for two years from the start of use, and the copyright fee can be contracted in an inexpensive form.
[0258]
【The invention's effect】
As described in detail above, according to the present invention, it is possible to provide a recording medium with regional restrictions.
[0259]
According to the present invention, it is possible to provide a recording medium in which the time when the recorded data to be reproduced can be reproduced can be varied regionally.
[0260]
According to the present invention, it is possible to provide a recording medium that can vary the time when a movie as recorded data to be reproduced can be reproduced in the order of distribution.
[0261]
According to the present invention, it is possible to provide a recording medium having regional restrictions without being different in the standard television system.
[0262]
According to the present invention, it is possible to provide a recording medium that can have regional restrictions corresponding to different principles.
[0263]
According to the present invention, it is possible to provide a recording medium that can have regional restrictions corresponding to different values.
[0264]
According to the present invention, it is possible to provide a recording medium that can have regional restrictions corresponding to different languages.
[0265]
According to the present invention, it is possible to give regional restrictions when reproducing data to be reproduced recorded on a recording medium.
[0266]
According to the present invention, when data to be reproduced recorded on a recording medium is reproduced, the time when the data can be reproduced can be varied from region to region.
[0267]
According to the present invention, when a movie as data to be reproduced recorded on a recording medium is reproduced, it can be varied in the order of distribution.
[0268]
According to the present invention, when reproducing data to be reproduced recorded on a recording medium, it is possible to give regional restrictions without being different in the standard television system.
[0269]
According to the present invention, when reproducing data to be reproduced recorded on a recording medium, it is possible to give regional restrictions corresponding to different principles.
[0270]
According to the present invention, when reproducing data to be reproduced recorded on a recording medium, it is possible to give regional restrictions corresponding to different values.
[0271]
According to the present invention, when reproducing data to be reproduced recorded on a recording medium, it is possible to give regional restrictions corresponding to different languages.
[0272]
According to the present invention, when data to be reproduced recorded on a recording medium is reproduced, even if the medium region code recorded on the recording medium does not match the device region code of the reproducing apparatus, Data to be reproduced can be reproduced when a predetermined period has elapsed since the data was created.
[0273]
According to the present invention, when data to be reproduced recorded on a recording medium is reproduced, even if the medium region code recorded on the recording medium does not match the device region code of the reproducing apparatus, the recording When the specific data recorded on the medium matches the set specific data, the data to be reproduced can be reproduced.
[0274]
According to the present invention, even if the region codes do not match in the initial state with respect to various requests, the data service can be stably received only when the specific conditions are met.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a schematic configuration of a data reproduction system using a recording medium.
FIG. 2 is a diagram for explaining a schematic configuration of a data reproduction system using a recording medium.
FIG. 3 is a plan view showing a schematic configuration of the recording medium of FIG. 1;
4 is a plan view showing a schematic configuration of the recording medium of FIG. 1. FIG.
5 is based on the physical structure on the recording surface in the lead-in area of the recording medium of FIG. 1, the detection signal of the pit start position and the pit end position, and the clock used when performing quantization. The figure for demonstrating a channel bit space | interval.
6 is a view showing specific contents of a part of data recorded in a lead-in area on the recording medium of FIG. 1; FIG.
FIG. 7 is a diagram for explaining a state of regional division on the earth by a region code;
FIG. 8 is a diagram illustrating a raw signal when a signal in which data is additionally recorded on a continuous groove meandering at a constant period is reproduced, and a peak detection signal in a peak detection circuit in the RF amplifier.
FIG. 9 is a circuit diagram showing a configuration of the RF amplifier of FIG. 2;
FIG. 10 is a diagram illustrating a recording example of determination data for determining whether or not data service is possible in the recording unit 12 of FIG. 1;
FIG. 11 is a flowchart for explaining data reproduction processing;
FIG. 12 is a flowchart for explaining data reproduction processing;
13 is a diagram showing a recording example of determination data for determining whether or not data service is possible in the recording unit 12 of FIG. 1;
FIG. 14 is a flowchart for explaining data reproduction processing;
FIG. 15 is a flowchart for explaining data reproduction processing;
16 is a diagram showing a recording example of determination data for determining whether or not data service is possible in the recording unit 12 of FIG. 1;
FIG. 17 is a flowchart for explaining a method for updating a region code change time and a region code update time recorded in the recording unit 12;
FIG. 18 is a diagram for explaining a schematic configuration of a playback system to which a provider is connected via a network.
FIG. 19 is a flowchart for explaining a method of updating a region code on the provider or update specialty store side via a network;
FIG. 20 is a flowchart for explaining a method of updating a region code on the provider or update specialty store side via a network;
FIG. 21 is a diagram for explaining the history contents of the region code for each recording medium recorded in the recording unit of the data reproducing apparatus;
FIG. 22 is a diagram for explaining the history contents of a region code for each recording medium recorded in the recording unit of the data reproducing apparatus;
FIG. 23 is a diagram for explaining the history contents of the region code for each recording medium recorded in the recording unit of the data reproducing apparatus.
FIG. 24 is a diagram for explaining the history contents of the region code for each recording medium recorded in the recording unit of the data reproducing apparatus.
FIG. 25 is a diagram showing specific contents of a part of data recorded in a lead-in area on a recording medium.
FIG. 26 is a diagram for explaining a schematic configuration of a data reproduction system applied to the network field.
[Explanation of symbols]
1 ... Recording medium
2. Data reproduction device
3 ... Host computer
4. Data reading part
10 ... second recording section
12 ... Recording section
22, 32 ... Lead-in area
23. Additional recording area
27 ... Control data section
33 ... Data area
41 ... Manufacturing date area
42 ... Region code area
43: Area in which data relating to data transfer control is recorded
44 ... Temporary permission condition data
45 ... Permission condition data relating to user / data playback device

Claims (3)

In a reproducing apparatus for reproducing information of a recording medium including a medium region code and reproduction data used for managing whether reproduction of reproduction data is permitted in each region,
  A recording means for recording a device region code used for managing the playback device in a region where the playback device is used;
  First reproducing means for reproducing the medium region code from the recording medium;
  First determining means for determining whether or not the medium region code reproduced by the first reproducing means matches the device region code recorded by the recording means;
  Second reproducing means for reproducing the reproduction data from the recording medium when the first determination means matches the medium region code and the device region code;
  Second determining means for determining whether the device region code is allowed to be updated;
  The medium region code reproduced by the first reproducing means is a means for replacing the device region code recorded by the recording means, and the second determining means is allowed to update the device region code. When the determination is made, the medium region code having the same number among the plurality of medium region codes including the same content code is checked, and the large number from at least one recording medium is checked. Renewing the medium region code and updating the device region code with the contents of the medium region code;
A playback apparatus characterized by comprising: 2. The reproducing apparatus according to claim 1, wherein the second reproducing means is set to be able to reproduce a predetermined number of media even if the first determining means detects a mismatch in an initial state. The update means adopts a medium region code of a medium having the latest information on the date of manufacture when a plurality of different medium region codes exist as different codes. The reproducing apparatus according to 1 .

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