JP2009140510A - Information recorder and information output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information recorder which starts to record main information without waiting for the head of the main information to be redistributed and can record the main information so that the main information can be played back according to the original configuration sequence in recording the main information that is repeatedly transmitted, and to provide an information output device. <P>SOLUTION: The information recorder for recording partial information constituting the main information that is repeatedly transmitted and address information showing a position on a recording medium in which the partial information should be recorded comprises: a partial information receiving means for receiving the partial information; an address information receiving means for receiving the address information corresponding to the partial information; a recording means for recording the partial information at a position on the recording medium indicated by the address information; a detecting means for detecting that recording of all of the partial information constituting the main information has been completed; and a stop control means for stopping the recording of the partial information in accordance with detection by the detecting means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field of information recording devices and information output devices, and more specifically, information recording capable of transmitting and receiving various types of information to and from information recording devices and information output devices that are installed separately. It belongs to the technical field of devices and information output devices.

  With the recent progress of networking in the information communication field, information such as music or movies (hereinafter, this information is appropriately referred to as content) is distributed via an electric communication line such as an Internet line or a cable television line, and an optical disc. Recording on a recordable recording medium such as the above is becoming common.

  At this time, in the conventional content distribution system described above, the distribution side repeatedly distributes content having the same content for a preset period, and the recording side acquires this via the above-described electric communication line. In general, recording is performed in the order of acquisition.

  However, according to the above-described conventional content distribution / recording method, since the recording side usually starts the recording from the beginning of the desired content, the desired content at the timing when the recording side tries to start the recording. If the middle part of the file is being distributed, there is a problem that it is necessary to wait from the beginning until the distribution starts again, and unnecessary time must be spent for recording the desired content. It was.

  Therefore, the present invention has been made in view of the above-mentioned problems, and the problem is that when recording content that has been repeatedly distributed, recording without waiting for the beginning of the content to be distributed again. Is to provide an information recording apparatus and an information output apparatus capable of recording in a reproducible manner in accordance with the original configuration order.

  In order to solve the above-mentioned problem, the invention described in claim 1 includes: partial information constituting main information repeatedly transmitted; and address information indicating a position on a recording medium where the partial information is to be recorded. An information recording apparatus for receiving the partial information on an information storage medium by receiving it via a network, a partial information receiving means for receiving the partial information, and an address for receiving the address information corresponding to the partial information An information receiving means; a recording means for recording the partial information at a position on the recording medium indicated by the address information; and a detecting means for detecting completion of recording of all the partial information constituting the main information. And a stop control means for stopping the recording of the partial information in response to detection by the detection means.

  Therefore, for the main information repeatedly sent, the partial information constituting the main information and the address information corresponding to the partial information are received, and the partial information is recorded at the position on the recording medium indicated by the address information. Even when it is acquired from the middle of the main information, when the main information can be recorded on the recording medium so that it can be reproduced in the original configuration order, and recording of all the partial information constituting the main information is completed. The recording of partial information can be stopped.

  In order to solve the above-mentioned problem, the invention according to claim 2 is characterized in that the detection unit obtains the main information again when the partial information having the same content as the partial information first acquired for the main information is acquired. The information recording apparatus according to claim 1, wherein it is detected that recording of all of the partial information that constitutes is completed.

  In order to solve the above-mentioned problem, the invention according to claim 3 includes start address information storage means for storing the address information corresponding to the partial information acquired first for the main information, and the stop The control means stops recording of the partial information when the partial information corresponding to the same address information as the address information stored in the start address information storage means is received again. An information recording apparatus according to claim 2.

  In order to solve the above problem, the invention according to claim 4 is the final recording position detecting means for detecting that the recording of the partial information by the recording means has reached a predetermined first position on the recording medium. And recording the partial information subsequent to the partial information recorded at the predetermined first position from a predetermined second position on the recording medium in response to detection by the final recording position detecting means. The information recording apparatus according to claim 2 or 3, wherein the information recording apparatus is characterized in that:

  In order to solve the above-described problem, in the invention according to claim 5, the predetermined first position is an outermost peripheral position of a recording area in the information recording medium, and the predetermined second position is the information. 5. The information recording apparatus according to claim 4, wherein the information recording apparatus is an innermost peripheral position of a recording area in the recording medium.

  In order to solve the above problem, the invention according to claim 6 is the first output means for outputting the partial information constituting the main information, the configuration order of the partial information in the main information and the partial information are recorded. Address information indicating a position on the recording medium to be performed, second output means for outputting the partial information along the reproduction time series, output by the first output means, and output by the second output means, And a control unit that repeats the main information as one cycle for a plurality of cycles.

  In order to solve the above-mentioned problem, the invention according to claim 7 is characterized in that the first output means for outputting the partial information constituting the main information and the order information indicating the recording order of the partial information on the recording medium are the partial information. A second output means for outputting the information along a reproduction time series; a control means for repeating the output by the first output means and the output by the second output means for a plurality of cycles with the main information as one cycle; It is an information output device characterized by comprising.

  In order to solve the above-mentioned problem, the invention according to claim 8 is the first output means for outputting the partial information constituting the main information, and the partial information indicating the recording order of the partial information on the recording medium. A second output means for outputting the information along a reproduction time series; a control means for repeating the output by the first output means and the output by the second output means for a plurality of cycles with the main information as one cycle; An information recording device for recording the partial information output from the information output device comprising: partial information receiving means capable of receiving the partial information from the middle of the main information; and the order corresponding to the partial information Order information acquisition means for receiving information, recording means for recording the partial information corresponding to the order information according to the order information, and all the partial information constituting the main information A detecting means for detecting that the recording is completed, in response to detection by said detection means, an information recording apparatus characterized by having a stop control means for stopping the recording of the partial information.

  As described above, according to the present application, for the main information that is repeatedly transmitted, the partial information constituting the main information and the address information corresponding to the partial information are received, and on the recording medium indicated by the address information Since the partial information is recorded at the position, the main information can be recorded on the recording medium so that it can be reproduced in accordance with the original configuration order, even if it is acquired from the middle of the main information, and all the information constituting the main information can be recorded. When the recording of the partial information is completed, the recording of the partial information can be stopped.

It is a block diagram which shows the whole structure of a content delivery system. It is a block diagram which shows the detailed structure of a player. It is a figure (I) explaining the aspect of the content in a reproduction signal. It is a figure (II) explaining the aspect of the content in a reproduction signal. It is a figure (III) explaining the aspect of the content in a reproduction signal. It is a cross-sectional perspective view which shows the structure of DVD-R. It is a figure which shows the recording format in DVD-R. It is a figure which shows the block address number etc. in DVD-R It is a block diagram which shows the detailed structure of a recorder. It is a flowchart which shows the recording process of 1st Embodiment. It is a figure which shows the recording aspect in 1st Embodiment. It is a flowchart which shows the recording process in 2nd Embodiment. It is a figure which shows the recording aspect in 2nd Embodiment. It is a flowchart which shows the reproduction | regeneration processing in the recorder of 2nd Embodiment. It is a flowchart which shows the recording process of 3rd Embodiment.

  Next, preferred embodiments of the present invention will be described with reference to the drawings. In each of the embodiments described below, the content is reproduced from a DVD on which the content is recorded (an optical disc having a recording capacity several times higher than that of a conventional CD (Compact Disc)), and the content is reproduced on the Internet. The present invention relates to a content distribution system including an output device that distributes via a line and a recording device that records the distributed content on a DVD-R (DVD-Recordable) that is a recordable DVD. This is an embodiment in the case where is applied.

(I) First Embodiment First, a first embodiment according to the present invention will be described with reference to FIGS.

  First, the overall configuration and overall operation of the content distribution system according to the first embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the overall configuration.

  As shown in FIG. 1, the content distribution system S according to the first embodiment transmits content (including reproduction control information for controlling the reproduction mode (reproduction order or reproduction speed) of the content) to the Internet line IN. Output device 10 for output (distribution), and a recording device 11 for acquiring the output content from the Internet line IN and recording it on a DVD-R.

  Further, the output device 10 reproduces the content from the DVD on which the content is recorded, outputs the reproduced signal Sd, performs a preset modulation process on the reproduced signal Sd, etc. And a transmission device 13 as distribution means for outputting to IN.

  Further, the recording device 11 acquires the output content from the Internet IN and outputs it as a recording signal Sr, a set top box 14 as an acquisition means for reception, and the output recording signal Sr. And a recorder 15 as recording means for recording on a DVD-R by a method described later.

(A) Configuration and Operation of Player Next, a detailed configuration and operation of the player 12 according to the first embodiment will be described with reference to FIGS.

  FIG. 2 is a block diagram showing a detailed configuration of the player 12, and FIGS. 3 to 5 are diagrams for explaining modes of contents included in the reproduction signal Sd.

  As shown in FIG. 2, the player 12 according to the first embodiment includes a spindle motor 50 that rotates a DVD 72 on which content is recorded at a preset number of rotations, a driver 52, a phase comparator 51, and a pickup 60. And an RF (Radio Frequency) amplifier 61, a clock extraction unit 62, a decoder 67, and a CPU 68 as output means and change means.

  Here, the content is compressed by a compression method such as a so-called MPEG (Moving Picture Experts Group) method regardless of the time axis (that is, at a so-called variable bit rate).

  Next, the operation will be described.

  First, the pickup 60 irradiates the information recording surface on the DVD 72 with an information reproducing light beam B having a predetermined constant intensity, and corresponds to the content recorded on the DVD 72 based on the reflected light. An RF signal Sp to be generated is generated and output to the RF amplifier 61.

  Accordingly, the RF amplifier 61 performs waveform shaping processing, amplification processing, and the like on the RF signal Sp, generates an amplified signal Sap, and outputs the amplified signal Sap to the clock extraction unit 62 and the decoder 67.

  Next, the clock extraction unit 62 extracts the synchronization signal Scl used for controlling the rotation of the spindle motor 50 from the amplified signal Sap, and outputs it to the phase comparator 51.

  Then, the phase comparator 51 compares the synchronization signal Scl with a preset reference clock serving as a reference for the rotation control, generates a phase difference signal Scp indicating the phase difference, and outputs it to the driver 52. .

  Next, the driver 52 generates a drive signal Ssd for rotating the spindle motor 50 based on the phase difference signal Scp so that the phase difference indicated by the phase difference signal Scp becomes zero, and the spindle motor 50. Output to.

  Thereby, the spindle motor 50 rotates based on the drive signal Ssd, thereby rotating the DVD 72 at the preset number of rotations.

  On the other hand, the decoder 67 to which the amplified signal Sap is inputted performs a preset demodulation process or the like on the amplified signal Sap to generate a demodulated signal Sdc corresponding to the content recorded on the DVD 72, and the CPU 68 Output to.

  Then, the CPU 68 repeats outputting the demodulated signal Sdc as the reproduction signal Sd to the transmission device 13 and further outputting it to the Internet IN for the same content, and controls the operation of each of the constituent members as a player 12. The above repeating operation is executed.

  Next, the mode of the reproduced content included in the reproduction signal Sd will be described with reference to FIGS.

  The content recorded on the DVD 72 has a physical structure including a plurality of data sectors 20 shown at the top of FIG.

  In one data sector 20, the ID information 21 including the sector address number indicating the reproduction position (reproduction order) in the content of the data sector 20 and the error of the ID information 21 are corrected from the beginning. ID information error correction code (IEC) (IEC) 22, preliminary data 23, data 24 such as an image or sound itself included in the content, and an error in data 24 An error detection code (EDC (Error Detection Code)) 25 is included, and the content is configured by a plurality of consecutive data sectors 20.

  Next, in detail about the ID information 21, as shown in the middle of FIG. 3, the ID information 21 includes sector information 45, which is various information related to the data sector 20 in which the ID information 21 is included, and the sector address number 46. It is configured.

  Further, as shown in the lowermost part of FIG. 3, the sector information 45 is a sector format that is information indicating the format of the recording format on the DVD 72 (that is, whether the format is a so-called CLV (Constant Line Velocity) format). Information 47, tracking method information 48 which is information indicating a tracking method in the DVD 72 (ie, a so-called groove tracking method), and information indicating a design value of the reflectance of the light beam B in the DVD 72 Reflectivity information 49, a spare area 80 that does not contain any information, and the division of the area on the DVD 72 where the data sector 20 is recorded (that is, the data sector 20 is recorded in the recording area on the DVD 72). Or whether it is recorded in the lead-in area ) And area information 81 that is information indicating the format of the data 24 included in the data sector 20 (that is, the data 24 is an image or sound itself, or information in a connection area in a rewritable optical disk). Data format information 82 that is information indicating the format) and the number of the information recording surface on which the data sector 20 is recorded (that is, the information recording surface number in the case of a DVD having two or more information recording surfaces) And a recording surface number 83 which is information.

  Next, the configuration of an ECC (Error Correcting Code) block configured using a plurality of the data sectors 20 on the DVD 72 will be described with reference to FIG.

  Here, the ECC block is a set of data that is a basic unit of error correction processing executed in the decoder 67 when content is reproduced from the DVD 72.

  In an ECC block composed of a plurality of data sectors 20, first, each piece of data obtained by dividing one data sector 20 every 172 bytes (hereinafter referred to as data block 33) is 12 in the vertical direction. Correction block obtained by adding a 10-byte intra-ECC code (PI (Pality In) code) 31 to the end of the data block 33 for a collection of data arranged in rows (see the left of FIG. 4). A plurality of 34 are included.

  At this time, twelve (12 rows) correction blocks 34 correspond to one data sector 20, but in one ECC block 30, this correction block 34 is only for 16 data sectors 20 (that is, , Corresponding to the correction block 34 of 192 rows).

  Further, in the ECC block 30, with the correction blocks 34 of 192 rows arranged in the vertical direction, the correction blocks 34 of the 192 rows are divided in the vertical direction from the beginning for each byte. Sixteen ECC outer codes (PO (Pality Out) codes) 32 are added to the respective data. Note that the ECC outer code 32 is also added to the portion of the ECC code 31 in the correction block 34.

With the above configuration, one ECC block 30 including 16 data sectors 20 is formed as shown in the right side of FIG. 4. At this time, the total amount of information included in one ECC block 30 is ,
[Equation 1]
(172 + 10) bytes × (192 + 16) rows = 37856 bytes, of which the actual data 24 is
[Equation 2]
It becomes 2048 bytes × 16 = 32768 bytes.

  In the ECC block 30 shown in FIG. 4, 1-byte data is indicated by “D #. *”. For example, “D1.0” indicates 1-byte data arranged in the first row and 0th column, and “D190.170” indicates 1-byte data arranged in the 190th row and 170th column. Show. Therefore, the ECC inner code 31 is arranged in the 172nd to 181st columns, and the ECC outer code 32 is arranged in the 192nd to 207th rows.

  Further, one correction block 34 is continuously recorded on the DVD 72.

  Here, as shown on the right side of FIG. 4, the ECC block 30 is configured to include both the ECC inner code 31 and the ECC outer code 32 because the correction of the data arranged in the horizontal direction on the right side of FIG. This is because the inner code 31 is used to correct the data arranged in the vertical direction on the right in FIG. That is, in the ECC block 30 shown on the right side of FIG. 4, it is possible to perform error correction twice in the horizontal direction and in the vertical direction.

  More specifically, for example, one correction block 34 (including a total of 182 bytes of data including the ECC code 31 for one row as described above, is continuously recorded on the DVD 72. Even if all of them are destroyed due to scratches on the DVD 72, when viewed from the vertical direction, only one byte of data is destroyed for one ECC outer code 32. Therefore, if error correction is performed in the decoder 67 at the time of reproduction using the ECC outer code 32 of each column, even if all of one correction block 34 is destroyed, correct error correction is performed and reproduction is performed accurately. Can do it.

  Next, an actual recording mode of the ECC block 30 on the DVD 72 will be described with reference to FIG.

  In FIG. 5, data indicated by “D #. *” Corresponds to each data described in the right side of FIG.

  The ECC block 30 on the DVD 72 is divided and recorded into 16 recording sectors 40 obtained by interleaving the ECC blocks 30 in a row in the horizontal direction for each correction block 34, as shown in the uppermost part of FIG. Yes.

  At this time, one recording sector 40 includes 2366 bytes (37856 bytes ÷ 16) of information, and in this, the data sector 20 and the ECC inner code 31 or the ECC outer code 32 are mixed. However, at the head of each recording sector 40, ID information 21 (see FIG. 3) in the data sector 20 is arranged.

  Next, one recording sector 40 is divided into 91-byte data 41, and each header H is added. In this state, the recording sector 40 is divided into so-called 8-16 modulation for each data 41. Content is recorded on the DVD 72 as one sync frame 42 obtained in this manner.

At this time, one sync frame 42 includes a header H ′ and data 43. The amount of information in one sync frame 42 is
[Equation 3]
91 bytes × 8 × (16/8) = 1456 bytes, and the content is recorded on the DVD 72 in a form in which the sync frames 42 are continuous. At this time, one recording sector 40 includes 26 sync frames 42.

  Since the recording format described above is configured and recorded on the DVD 72, the original ECC block 30 is restored if 8-16 demodulation and deinterleaving are performed when the content is reproduced (see FIG. 5). As described above, it is possible to perform strong error correction as described above and accurately reproduce the content and output it to the transmission device 13 as a reproduction signal Sd.

  The reproduction signal Sd output to the Internet IN via the transmission device 13 is output to the Internet IN in a state where the recording sectors 40 are arranged with the ID information 21 shown in the second row from the top in FIG. The

(B) Configuration and Operation of Recorder Next, a detailed configuration and operation of the recorder 15 according to the first embodiment will be described with reference to FIGS.

  6 to 8 are diagrams showing the configuration of a DVD-R on which content is recorded by the recorder 15, FIG. 9 is a block diagram showing the detailed configuration of the recorder 15, and FIGS. FIG.

  First, before describing the operation of the recorder 15, the configuration and recording mode of a DVD-R on which content output via the Internet IN is recorded will be described with reference to FIGS. 6 to 8.

  First, the structure of the DVD-R according to the first embodiment will be described with reference to FIG.

  In FIG. 6, a DVD-R1 rotated by a constant linear velocity method is a dye-type DVD-R having a dye film 5 and capable of writing information only once, and a groove track that is a track on which content is to be recorded. 2 and a land track 3 for guiding a light beam B such as a laser beam as reproduction light or recording light is formed on the groove track 2.

  Further, a protective film 7 for protecting them and a gold vapor deposition surface 6 for reflecting the light beam B when reproducing recorded information are provided. A pre-pit 4 corresponding to the pre-information is formed on the land track 3. At this time, the prepit 4 is formed in advance before shipping the DVD-R1.

  Here, as the pre-information, an address number indicating a position on the DVD-R 1 where content is to be recorded (hereinafter, an address number recorded on the DVD-R 1 using the pre-pit 4 is referred to as a block address number. ) Is recorded by the pre-pit 4.

  Further, in the DVD-R1, the groove track 2 is wobbled at a frequency corresponding to the rotational speed of the DVD-R1. The recording of the synchronization signal for rotation control by wobbling the groove track 2 is executed in advance before the DVD-R 1 is shipped in the same manner as the pre-pit 4.

  When the content is recorded on the DVD-R1, the recorder 15 detects the wobbling frequency of the groove track 2 to acquire the synchronization signal and control the rotation of the DVD-R1 at a predetermined rotational speed. At the same time, pre-information is acquired in advance by detecting the pre-pit 4, and based on this, the optimum output of the optical beam B as recording light is set, and at the position on the DVD-R 1 where the content is to be recorded. A certain block address number or the like is acquired, and the content is recorded at a recording position corresponding to the output ID information 21 based on the block address number.

  Here, at the time of recording content, the content is recorded by irradiating the light beam B so that the center thereof coincides with the center of the groove track 2 to form recording pits corresponding to the recording information on the groove track 2. .

  At this time, the size of the light spot SP is set so that a part of the light spot SP is irradiated not only on the groove track 2 but also on the land track 3 as shown in FIG. Then, a push-pull method (radial push-pull using a photodetector divided by a dividing line parallel to the rotation direction of the DVD-R1) using a part of the reflected light of the light spot SP irradiated on the land track 3 is used. The pre-information is detected from the pre-pit 4 by the above method, and the pre-information is acquired, and a wobbling signal is detected from the groove track 2 by using a part of the reflected light of the light spot SP irradiated on the groove track 2. Then, a rotation control synchronization signal and the like are acquired.

  Next, pre-information and rotation control information recorded in advance on the DVD-R 1 of the first embodiment and a recording format of the recording information will be described with reference to FIG.

  In FIG. 7, the upper row shows the recording format in the recording information, and the lower waveform waveform shows the wobbling state of the groove track 2 that records the recording information (that is, the plan view of the groove track 2). An upward arrow during the wobbling state of the groove track 2 schematically shows a position where the prepit 4 is formed.

  Here, in FIG. 7, the wobbling state of the groove track 2 is shown using an amplitude larger than the actual amplitude for easy understanding, and the recording information is recorded on the center line of the groove track 2.

  As shown in FIG. 7, the record information recorded on the DVD-R 1 in the first embodiment is divided in advance for each sync frame 42 as described above. One recording sector 40 as an information unit is formed by 26 sync frames, and the ECC block 30 is formed by 16 recording sectors 40.

  One sync frame 42 has a length of 1488 times (1488T) a unit length (hereinafter referred to as T) corresponding to a bit interval defined by the recording format when recording the recording information. Furthermore, in the portion of the length of 14T at the head of one sync frame 42, synchronization information SY for synchronization at the time of recording for each sync frame is used as the header H ′ (see the bottom row in FIG. 5). To be recorded.

  On the other hand, the pre-information recorded on the DVD-R 1 in the first embodiment is recorded for each sync frame 42. Here, in the recording of the pre-information by the pre-pit 4, the sync signal in the pre-information (hereinafter, the pre-information is referred to) on the land track 3 adjacent to the area where the sync information SY is recorded in each of the sync frames 42 in the content. In order to distinguish the sync signal in FIG. 1 from the sync signal for controlling the rotation of the DVD-R 1, a pre-pit 4 is always formed to indicate the sync code), and other than the sync information SY. Two or one pre-pits 4 are formed on the land track 3 adjacent to the first half portion in the sync frame 42 to indicate the contents (block address numbers) of the recorded pre-information (the synchronization information SY For the first half of the sync frame other than the pre-pit 4 depending on the content of the pre-information to be recorded. If not formed in some cases. In addition, the head of the sync frame 42 in one recording sector 40 (described later EVEN frame), the pre-pits 4 always three in the first half is formed continuously.).

  Here, in the DVD-R1 of the first embodiment, in one recording sector 40, only the even-numbered sync frame 42 (hereinafter referred to as an EVEN frame) or the odd-numbered sync frame 42 (hereinafter referred to as an ODD frame). Only), pre-pits 4 are formed and pre-information is recorded. That is, in FIG. 7, when the prepit 4 is formed in the EVEN frame (indicated by a solid line upward arrow in FIG. 7), the prepit 4 is not formed in the adjacent ODD frame.

  Further, regarding the relationship between the wobbling of the groove track 2 and the position of the prepit 4, the prepit 4 is formed at the position of the maximum amplitude in the wobbling.

  At this time, the relationship between the content of the pre-information in the pre-pit 4 and the position to be formed will be described more specifically. The pre-pit 4 formed on the land track 3 adjacent to the area where the synchronization information SY is recorded is “ Assuming that the prepit 4 formed on the land track 3 adjacent to the first half portion in the sync frame other than the synchronization information SY is “prepit B1” and “prepit B0” from the head, the following table 1 is used. As shown in FIG. 5, prepits B2 to B0 are all formed at locations corresponding to the sync code in the first EVEN frame of one recording sector, and only prepits B2 and B1 are formed at locations corresponding to the sync code in the ODD frame. The data “1” as pre-information other than the sync code is formed. Only the pre-pits B2 and B0 in a location corresponding are formed, in a location corresponding to the data "0" as the pre-information other than the sync code are only pre-pit B2 is formed.

  On the other hand, the groove track 2 is wobbled at a constant wobbling frequency of about 140 kHz (a frequency corresponding to eight waves of the fluctuation waveform of the groove track 2) over all the sync frames 42. Then, the recorder 15 detects the synchronization signal for rotation control of a spindle motor 50 (described later) for rotating the DVD-R 1 by detecting the constant wobbling frequency.

  Next, the contents of the block address number recorded as the pre-information will be described with reference to FIG. 8 together with the entire structure of the DVD-R1.

  As shown in the upper part of FIG. 8, the entire DVD-R1 is recorded on the DVD-R1 and the control information area CD in which information used as control information is recorded in advance from the inner periphery side. A lead-in area LI in which start information and the like used when starting reproduction of already-completed content is recorded, and a file system information area FA in which information indicating a hierarchical structure of each data included in the recorded content is recorded And a recording area DA in which the content itself is actually recorded, and a lead-out area LO in which end information used when the reproduction of the content recorded on the DVD-R1 is finished is recorded. .

  At this time, the lead-in area LI, the file system information area FA, and the lead-out area LO are formed according to the contents of the content after the recording of the content on the DVD-R1 is completed.

  Further, the sector address number in the ID information 21 in the content to be recorded at the head of the lead-in area LI is “022FA0h (“ h ”indicates hexadecimal display as shown in the lower part of FIG. 8. It is standardized that the sector address number in the ID information 21 in the content to be recorded at the head of the file system information area FA is “030000h” as shown in the lower part of FIG. Yes.

  On the other hand, the block address numbers pre-recorded by the pre-pit 4 as the pre-information are ascending in the order toward the outer periphery of the DVD-R 1 with the innermost peripheral portion of the control information area CD as the lowest value as shown in the vertical axis of FIG. It is recorded to become.

  At this time, it is standardized that the relationship between the block address number as pre-information and the sector address number in the content should be a relationship in which the former is 10 h times the latter.

  Next, the detailed configuration and operation of the recorder 15 in the recording device 11 for recording the content output from the output device 10 via the Internet IN to the DVD-R1 described above will be described with reference to FIGS. I will explain.

  Note that the recorder 15 of the first embodiment is a recorder that can not only record content on the DVD-R1, but also reproduce from the DVD-R1.

  Further, in the block diagram shown in FIG. 9, the same components as those in the block diagram shown in FIG.

  As shown in FIG. 9, the recorder 15 of the first embodiment includes a spindle motor 50 that rotates a DVD-R1 on which content is recorded at a preset number of revolutions, a driver 52, a phase comparator 51, and a pickup. 60, an RF amplifier 61, a band pass filter 69, a wobble detector 63, an LPP (Land Pre Pit) detector 64, an LPP decoder 66, a decoder 67, and a CPU 68 including a memory 68m. And an address detection circuit 70 and an interface unit 71.

  First, description will be given of an operation when reproducing content when the content has already been recorded on the DVD-R1.

  In the reproduction, the spindle motor 50, the driver 52, the phase comparator 51, the pickup 60, the RF amplifier 61, the decoder 67, and the CPU 68 are recorded on the rotating DVD-R 1 by performing the same operation as the player 12 described above. A demodulated signal Sdc corresponding to the content being generated is generated and output as an output signal So to an external amplifier (not shown) via the interface 71.

  At this time, for the synchronization signal Scl to be compared with the reference clock in the phase comparator 51, a bandpass signal Sbp including a synchronization signal corresponding to the frequency of wobbling of the groove track 2 is obtained from the amplified signal Sap. Then, the synchronization signal Scl having a frequency corresponding to the 140 kHz wobbling is generated from the extracted band pass signal Sbp.

  Next, an operation in the case where the content included in the recording signal Sr received and output by the set top box 14 is recorded on the DVD-R1 will be described.

  First, the recording signal Sr (recording signal Sr including the content to be recorded on the DVD-R1) input to the recorder 15 is subjected to interface processing set in advance in the interface unit 71, and the processed recording signal Sri is stored in the CPU 68. The data is stored in the memory 68m and output to the address detection circuit 70.

  On the other hand, prior to content recording, the pickup 60 irradiates the pre-pit 4 on the DVD-R 1 with the light beam B, generates an RF signal Sp corresponding to the pre-pit 4, and outputs it to the RF amplifier 61.

  Accordingly, the RF amplifier 61 performs processing such as amplification processing on the RF signal Sp, generates an amplified signal Sap, and outputs the amplified signal Sap to the band pass filter 69.

  The bandpass filter 69 generates a bandpass signal Sbp including a synchronization signal corresponding to the wobbling frequency of the groove track 2 and a block address number corresponding to the prepit 4 from the amplified signal Sap, and the wobble detection unit 63 and the LPP detector 64.

  Next, the wobble detection unit 63 generates a synchronization signal Scl having a frequency corresponding to the wobbling from the band pass signal Sbp, and outputs it to the phase comparator 51 and the crosstalk removal unit 65 in the same manner as when reproducing the content. To do.

  As a result, the phase comparison unit 51 and the driver 52 rotate the DVD-R 1 at a preset number of rotations by the same operation as that of the player 12 described above.

  On the other hand, the LPP detection unit 64 to which the bandpass signal Sbp is input detects a signal component corresponding to the block address number from the bandpass signal Sbp, and outputs it to the crosstalk removal unit 65 and the LPP decoder 66 as the LPP signal Slpp. To do.

  Then, the crosstalk removing unit 65 removes the crosstalk component caused by the presence of the prepit 4 from the synchronization signal Scl based on the LPP signal Slpp, and generates a recording clock signal Swck having a reference frequency when recording content. And output to the encoder 91.

  Further, the LPP decoder 66 analyzes the contents of the LPP signal Slpp, generates a block address number (that is, a block address number indicating the position on the DVD-R1 to which the light beam B is currently irradiated) signal Sdl, and generates a CPU 68. Output to.

  Next, the address detection circuit 70 extracts the sector address number in the ID information 21 for each recording sector 40 included in the processed recording signal Sri from the processed recording signal Sri, and sends it to the CPU 68 as the address signal Sadd. Output.

  Then, the CPU temporarily accumulates the processed recording signal Sri in the memory 68m, compares the contents of the address number signal Sdl with the contents of the address signal Sadd, and sets the corresponding relationship (that is, both) The latter is output to the encoder 91 at a timing that is 10 h times the former).

  Accordingly, the encoder 91 performs a preset modulation process or the like on the processed recording signal Sri with the recording clock signal Swck as a reference, generates a modulated signal Se, and outputs the modulated signal Se to the power control unit 92.

  Based on the control signal Sc from the CPU 68, the power control unit 92 generates a power control signal Spc and modulates the intensity of the recording light beam B so as to correspond to the modulation signal Se, and the laser driving unit. To 93.

  Thereafter, the laser drive unit 93 is not shown in the pickup 60 that emits the light beam B to irradiate the groove track 2 on the DVD-R 1 with the intensity change indicated by the power control signal Spc. A drive signal Sld for driving the semiconductor laser is generated and output to the pickup 60.

  Through the series of operations described above, the content corresponding to the sector address number included in the address signal Sadd is recorded at the recording position on the DVD-R1 where the recorder 15 acquires the address number signal Sdl corresponding to the address signal Sadd. Recording sector 40) can be recorded.

  Next, the overall flow of the above-described content recording process on the DVD-R 1 will be described in detail with reference to FIGS. Note that the recording process described below is a process that is mainly controlled and executed mainly by the CPU 68.

  As shown in FIG. 10, in the recording process, first, by monitoring whether or not the address signal Sadd has been input, it is recognized that the input of the recording signal Sr has been started, and the input has been input. The head sector address number in the content is detected (step S1).

  Next, the irradiation position of the recording light beam B is set to the block address number corresponding to the detected sector address number (this block address number is “T” and stored in another memory (not shown) in the CPU 68). The position is moved to the position of (stored)) (step S2). Here, it is assumed that the irradiation position is moved to the position indicated by * in FIG. 11 by this processing.

  In this state, it is monitored whether or not the head of the ECC block 30 in the content has been detected (step S3). If not detected (step S3; NO), the content monitoring is continued as it is. When the head is detected (step S3; YES), the filling of the input content into the memory 68m is started (step S4).

  Next, it is monitored whether or not the memory 68m is full (step S5). When the memory 68m is not full (step S5; NO), the filling is continued as it is, and when the memory 68m is full (step S5; YES). ), Recording of the content in the memory 68m to the DVD-R1 is started (step S6).

  In the content recording process in step S6, as shown in the third row from the top in FIG. 11, the content is recorded from the position of the block address number T detected in step S2 toward the outer periphery of the DVD-R1. Will go. As a recording mode of the content at this time, recording is performed for each sync frame 42 as shown in the lowermost part of FIG.

  In the recording process, as shown in FIG. 11, the synchronization information SY is also formed and recorded every time one recording sector 40 is formed and recorded.

  Next, during the recording process in step S6, it is monitored whether or not the last (outermost) block address number on the DVD-R1 has been detected (step S7).

  When the final block address number is not detected (step S7; NO), the recording process is continued as it is because the content can still be recorded in the recording area DA of the DVD-R1, while the final block address number is detected. When the content having the sector address number corresponding to the block address number at the outermost periphery of the recording area DA is recorded (step S7; YES), the recording is then temporarily stopped (step S8). Further, the irradiation position of the light beam B is moved to the innermost peripheral portion of the recording area DA (step S9), and the recording process interrupted after the movement is resumed (step S10). By this processing, as shown in the fourth row from the top in FIG. 11, content recording is continued from the innermost periphery of the recording area DA.

  Next, after the recording process is resumed, it is monitored whether or not the block address number “T” stored when recording is started in step S2 is detected again (step S11).

  If the detected block address number is not the above “T” (step S11; NO), the recording of the content has not progressed to the recording position indicated by * in FIG. 11 (that is, the content of the content on the DVD-R1). If the block address number “T” is detected (step S11; YES), “DVD-R1” continues the recording process toward the outer peripheral side (step S10). The recording is ended because all the contents have been recorded (step S12). Further, as shown in the bottom to the third from the bottom in FIG. 11, the lead-out, which is the end information to be recorded in the lead-out area LO, etc. Data LOD, lead-in data LID as start information to be recorded in the lead-in area LI, and file system information The file system information FAD is a file information, etc. to be recorded in the area FA, and recorded in the area on the DVD-R1 corresponding to each data or information (step S13) is completed all of the recording process.

  At this time, in the file system formation processing in step S13, the head of the content is not the sector address number where recording is started (sector address number corresponding to the position of * in FIG. 11), but the innermost peripheral portion of the recording area DA. A file system is formed with the sector address number corresponding to the head as the head, and the sector address number corresponding to (* sector address number-1h) is connected to the sector address number corresponding to the * It will be described to form a file system.

  After the recording process as described above is completed, as shown in the lowermost part of FIG. 11, the content starting from the position * (corresponding to the block address number “T”) in FIG. 11 is the outermost periphery of the recording area DA. Is recorded continuously from the innermost periphery of the recording area DA, and a series of content recording is completed at the position indicated by *.

  As described above, according to the operation of the content distribution system S of the first embodiment, since the sector address number in the content to be recorded is distributed together, when recording the content on the DVD-R1, Even when recording is started in the middle of distributed content, the content can be recorded so that it can be played back in accordance with the original configuration order.

  In addition, since the content and the sector address number are distributed via the Internet line IN, the content and the sector address number can be distributed quickly and reliably even when the output device 10 and the recording device 11 are separated.

  Further, since the content recorded on the DVD 72 is played back and distributed as it is, the playback control information is also delivered to the recording device 11 together with the sector address number, so that it is output to the recording device 11 and output to the DVD-R1. After recording, when this is played back, it can be played back in various playback modes based on the playback control information.

  In the first embodiment described above, the case where the Internet line IN is used as a line for connecting the output device 10 and the recording device 11 has been described. In addition to this, both of them are a cable television line, a satellite broadcast line. Alternatively, the connection may be made using any one or more of terrestrial digital lines.

  In addition to the DVD-R1, a DVD-RW (DVD-Re-Recordable) or DVD-RAM (DVD-Random Access Memory) that can be rewritten a plurality of times may be used as the recording medium in the recorder 15. . Further, as a recording medium loaded in the player 12, a recorded DVD-R, DVD-RW, or DVD-RAM can be used in addition to the reproduction-only DVD 72.

(II) Second Embodiment Next, a second embodiment which is another embodiment according to the present invention will be described with reference to FIGS.

  FIG. 12 is a flowchart showing the playback process in the player of the second embodiment, FIG. 13 is a diagram for explaining the recording process in the recorder of the second embodiment, and FIG. 14 is a flowchart showing the playback process in the recorder. It is.

  In the first embodiment described above, the case where the content recorded on the DVD 72 is distributed as it is together with the sector address number and recorded on the DVD-R1 has been described. However, in the second embodiment described below, from the output device The content that has been illegally acquired and copied up to the recording device is distributed after being subjected to a so-called illegal copy prevention process for preventing illegal reproduction.

  The configuration of the output device and the recording device in the content distribution system according to the second embodiment is exactly the same as that of the output device 10 and the recording device 11 in the content distribution system S according to the first embodiment. Omitted.

  First, content reproduction processing executed in the player of the second embodiment will be described with reference to FIG.

  First, as a premise, in content reproduced by the player according to the second embodiment, CCI (Copy control information) which is restriction information for restricting the number of re-copying after the content is once copied. Data is included by a known method such as a digital watermark technique. At this time, the contents of the CCI data include copy-prohibited data that prohibits copying at all (hereinafter, the copy-prohibited data is referred to as NC (Never Copy) information), and prohibits copying beyond the current level. Re-copying prohibition data (hereinafter referred to as NMC (No More Copy) information) and permission data indicating that copying is permitted only once (hereinafter referred to as CO (Copy Once) information). And permission data indicating that copying (number of times) is free (hereinafter, the permission data is referred to as CF (Copy Free) information).

  As shown in FIG. 12, in the playback process in the player of the second embodiment, first, when the repeated playback process is started in the same manner as in the first embodiment (step S15), the playback should be performed next. CCI data included in the content is detected, and it is determined whether or not the content is NC information (step S16).

  If it is NC information (step S16; YES), the offset value for uniformly shifting the sector address number in the content is set to “16h” in step S24 described later (step S17), and the process proceeds to step S24. .

  On the other hand, if it is determined in step S16 that the CCI data is not NC information (step S16; NO), it is next determined whether or not the content of the CCI data is NMC information (step S18).

  If it is NMC information (step S18; YES), the offset value is set to “32h” (step S19), and the process proceeds to step S24.

  On the other hand, if it is determined in step S18 that the CCI data is not NMC information (step S18; NO), it is next determined whether or not the content of the CCI data is CO information (step S20).

  If it is CO information (step S20; YES), the offset value is set to “48h” (step S21), and the process proceeds to step S24.

  On the other hand, if the CCI data is not CO information in the determination in step S20 (step S20; NO), it is next determined whether the content of the CCI data is CF information (step S22).

  If it is CF information (step S22; YES), the offset value is set to “64h” (step S23), and the process proceeds to step S24.

  On the other hand, if it is determined in step S22 that the CCI data is not CF information (step S22; NO), the reproduction process itself is stopped to prevent illegal copying because the CCI data may be falsified.

  Next, when each offset value is set (steps S17, S19, S21, S23), a value obtained by adding the offset value to each sector address number included in the content is set as a new sector address number (step S24). ), The content including the new sector address number is output to the Internet line IN (step S25).

  Then, it is determined whether or not the reproduction processing of all the contents has been completed (step S26). If not completed (step S26; NO), the process returns to step S26 to continue the output of the contents. If so (step S26; YES), the reproduction process is terminated as it is.

  Next, the recording mode when the content output from the output device of the second embodiment as described above is recorded on the DVD-R1 by the recording process (see FIG. 10) similar to the case of the first embodiment is shown in FIG. Will be described.

  When the content reproduced / output by the reproduction processing shown in FIG. 12 is recorded on the DVD-R 1 in the same manner as the recorder 15 of the first embodiment, the sector address number in the content is uniformly shifted as described above. Therefore, as a result, as shown in FIG. 13, the recording process is performed in the same manner as in the case of the first embodiment, with the unrecorded portion N having the length ND being left at the beginning of the recording area DA. Will be.

  In this case, the length ND of the unrecorded portion N is a length corresponding to 16 sector address numbers when the offset value at the time of reproduction processing is “16h”, and the offset value at the time of reproduction processing is “ When it is “32h”, the length is equivalent to 32 sector address numbers, and when the offset value is “48h” at the time of reproduction processing, the length is equivalent to 48 sector address numbers. When the offset value at the time of reproduction processing is “64h”, the length is equivalent to 64 sector address numbers.

  At this time, since the unrecorded portion N becomes an obstacle at the time of reproduction, in the process of the last step S13 in the recording process, dummy data consisting of, for example, zero data is actually recorded in the unrecorded portion N. The unrecorded portion N is set as a dummy data recording portion N.

  Next, processing when the content recorded on the DVD-R1 as described above is reproduced by the recorder of the second embodiment while being subjected to illegal copy prevention processing will be described with reference to FIG.

  In the reproduction process in the recorder, first, the sector address number of the top position of the content recorded on the DVD-R1 is detected (step S25). Here, it is assumed that the detected sector address number is “AD” (see the bottom row in FIG. 13).

  Next, it is determined whether the detected sector address number “AD” corresponds to the block address number of the outermost periphery of the file system information area FA in the DVD-R1 (step S26. The block address number on the outer periphery is “T2”.)

  When the sector address number “AD” and the block address number “T2” have the original correspondence (that is, the sector address number “AD” is 10 times the hexadecimal number of the block address number “T2”) (step). S26; YES), there is no unrecorded portion N in the DVD currently loaded in the recorder of the second embodiment. Therefore, in this case, the DVD is a so-called original read-only DVD for the content. As a result, the process directly proceeds to normal reproduction processing (step S36).

  On the other hand, if it is determined in step S26 that the sector address number “AD” and the block address number “T2” are not in an original correspondence (step S26; NO), then the sector address number “AD” and the block address number It is determined whether or not the value obtained by adding “16h” to “T2” has the original correspondence (step S27).

  When the sector address number “AD” and the value obtained by adding “16h” to the block address number “T2” have the original correspondence (step S27; YES), the content corresponding to the NC information at this time is stored. Since this is an illegal act, the process proceeds to a process of notifying the reproduction as it is (step S29), and then the reproduction process is terminated.

  Next, in the determination in step S27, when the sector address number “AD” and the value obtained by adding “16h” to the block address number “T2” are not in the original correspondence relationship (step S27; NO), It is determined whether or not the sector address number “AD” and the value obtained by adding “32h” to the block address number “T2” have an original correspondence relationship (step S30).

  Then, when the sector address number “AD” and the value obtained by adding “32h” to the block address number “T2” are in the original correspondence (step S30; YES), next, in the currently detected content It is determined whether or not the CCI data in NMC information is NMC information (step S31).

  As a result, when the CCI data is NMC information (step S31: YES), it is assumed that the length of the unrecorded portion N and the content of the CCI data are in a normal relationship, and the normal reproduction process is performed (step S36).

  On the other hand, if it is determined in step S31 that the CCI data is not NMC information (step S31: NO), the length of the unrecorded portion N and the content of the CCI data are not in a normal relationship, and the content currently being reproduced is illegal. Since it is highly likely that the image has been copied, non-reproduction is notified (step S29), and the reproduction process is terminated.

  On the other hand, if it is determined in step S30 that the sector address number “AD” and the value obtained by adding “32h” to the block address number “T2” are not in the original correspondence relationship (step S30; NO), then the sector It is determined whether or not the address number “AD” and the value obtained by adding “48h” to the block address number “T2” have an original correspondence relationship (step S32).

  Then, when the sector address number “AD” and the value obtained by adding “48h” to the block address number “T2” have the original correspondence (step S32; YES), the CCI data is the CO information. It is determined whether or not there is (step S33).

  As a result, when the CCI data is CO information (step S33: YES), it is assumed that the length of the unrecorded portion N and the content of the CCI data are in a normal relationship, and the normal reproduction process is performed (step S36).

  On the other hand, if it is determined in step S31 that the CCI data is not CO information (step S33: NO), the length of the unrecorded portion N and the content of the CCI data are not in a normal relationship, and the content currently being reproduced is illegal. Since it is highly likely that the image has been copied, non-reproduction is notified (step S29), and the reproduction process is terminated.

  On the other hand, if it is determined in step S32 that the sector address number “AD” and the value obtained by adding “48h” to the block address number “T2” do not have the original correspondence (step S32; NO), then the sector It is determined whether or not the address number “AD” and the value obtained by adding “64h” to the block address number “T2” have an original correspondence (step S34).

  Then, when the sector address number “AD” and the value obtained by adding “64h” to the block address number “T2” are in the original correspondence (step S34; YES), next, in the currently detected content It is determined whether or not the CCI data at is CF information (step S35).

  As a result, when the CCI data is CF information (step S35: YES), the normal reproduction process is performed assuming that the length of the unrecorded portion N and the content of the CCI data are in a normal relationship (step S36).

  On the other hand, if it is determined in step S35 that the CCI data is not CF information (step S35: NO), the length of the unrecorded portion N and the content of the CCI data are not in a normal relationship, and the content being reproduced is illegal. Since it is highly likely that the image has been copied, non-reproduction is notified (step S29), and the reproduction process is terminated.

  On the other hand, if it is determined in step S34 that the sector address number “AD” and the value obtained by adding “64h” to the block address number “T2” are not in the original correspondence (step S34; NO), the current reproduction is being performed. Since there is a high possibility that a certain content has been recorded after some other illegal processing, non-reproduction is also notified (step S29), and the reproduction process is terminated.

  Then, during the reproduction process (step S36), it is monitored whether or not reproduction of all the contents has been completed (step S37). If not completed (step S37; NO), the reproduction is continued until completion. At the same time, if it has been completed (step S37; YES), the reproduction process is terminated.

  As described above, according to the operation of the content distribution system of the second embodiment, in addition to the effects of the operation of the content distribution system S of the first embodiment, the content includes CCI data, When the sector address numbers are uniformly changed corresponding to the contents of the CCI data, the changed sector address numbers are output to the recording device together with the content, and the content recorded on the DVD-R1 is reproduced by the recording device. Since the reproduction is performed by confirming the combination state of the CCI data and the changed sector address number, illegally copied content can be prevented from being reproduced illegally.

  In the above-described second embodiment, the configuration in which the sector address number at the start position is offset on the DVD-R 1 has been described. However, the sector address number may be offset at the time of transmission.

(III) Third Embodiment Next, a third embodiment which is another embodiment according to the present invention will be described with reference to FIG.

  FIG. 15 is a flowchart showing recording processing in the recorder of the third embodiment.

  In the first embodiment described above, the content recorded on the DVD 72 is distributed as it is together with the sector address number and recorded at the position of the corresponding block address number on the DVD-R1, but the following description will be given. In the third embodiment, recording of content is started from the beginning of the recording area DA in the DVD-R 1 regardless of the contents of the sector address number to be distributed.

  The configuration of the output device and the recording device in the content distribution system according to the third embodiment is the same as that of the output device 10 and the recording device 11 in the content distribution system S according to the first embodiment except for the recording process in the recorder. Since there is, detailed explanation is omitted.

  Next, content recording processing executed in the recorder of the third embodiment will be described with reference to FIG.

  In the recording process of the third embodiment, first, it is determined whether or not content distribution has been started from the output device 10 (step S40). If not distributed (step S40; NO), the distribution is continued as it is. On the other hand, when the distribution is started (step S40; YES), the head sector address number in the distribution is stored in a memory (not shown) in the CPU 68 (step S41) and the memory 68m. The content distributed within is accumulated.

  When the accumulation of the preset accumulation amount is completed, the sector address number in the accumulated content is then changed to the sector address number (specifically, “30000h” corresponding to the head of the recording area DA). “)” As a starting point, and so as to be in ascending order (step S42).

  Next, the stored content includes playback control information (more specifically, so-called PGCI (Program Chain Information) in the DVD standard, etc.) for controlling the playback mode of the content. It is determined whether or not there is (step S43).

  If the reproduction control information is included (step S43; YES), the sector address number included in the reproduction control information is converted to be associated with the changed sector address number in step S42 (step S42). S44), the process proceeds to step S45.

  On the other hand, when reproduction control information is not included in the content in step S43 (step S43; NO), the process proceeds to step S45 as it is.

  Then, in step S45, the distributed contents (step S40; YES) and the sector address numbers converted (steps S42 and S44) are recorded in order from the beginning of the recording area DA in the DVD-R1 (step S45).

  Then, during the recording, it is monitored whether or not the content corresponding to the sector address number stored in step S41 has been distributed again (step S46). When the content has not been redistributed (step S46; NO), the above-described operation is performed. Is returned to step S42 to repeat the content that is continuously distributed. On the other hand, when the content including the same recorded content is distributed again (step S46; YES), the recording of the series of content is completed. In step S47, the recording is finished (step S47), and the lead-out data LOD, lead-in data LID, and file system information FAD are respectively stored in the DVD corresponding to the data or information in the same manner as in step S13 of FIG. -Record in the area on R1 (step S48) All recording processes Completed.

  As described above, according to the processing of the recorder of the third embodiment, since the content is recorded while converting the content of the reproduction control information based on the sector address number that is repeatedly distributed, from the beginning of the DVD-R1. The content can be recorded so that it can be played back in the original playback mode.

  The program corresponding to the recording process or the reproduction process described above is recorded on an information recording medium such as a flexible disk or a hard disk, and is executed by a personal computer or the like, whereby the personal computer is used as a recorder and a player in each embodiment. It is also possible to function.

  Further, in each of the above-described embodiments, with respect to the reproduction signal Sd output from the output device 10 to the recording device 11 via the Internet IN, the recording sector 40 starts with the ID information 21 shown in the second row from the top in FIG. However, in addition to this, the reproduction signal Sd is formed in the second or bottom form from the bottom of FIG. 5 (that is, the reproduction signal in a form corresponding to the RF signal). Sd) can be configured and output to the Internet IN.

  Further, the transmission speed at the time of output from the output device 10 to the recording device 11 can be configured to transmit at a high speed of 2 times or higher.

1 ... DVD-R
DESCRIPTION OF SYMBOLS 2 ... Groove track 3 ... Land track 4 ... Prepit 5 ... Dye film 6 ... Gold vapor deposition film 7 ... Protective film 10 ... Output device 11 ... Recording device 12 ... Player 13 ... Transmission device 14 ... Set top box 15 ... Recorder 20 ... Data Sector 21 ... ID information 22 ... ID information error correction code 23 ... Preliminary data 24, 41, 43 ... Data 25 ... Error detection code 30 ... ECC block 31 ... ECC inner code 32 ... ECC outer code 33 ... Data block 34 ... Correction block DESCRIPTION OF SYMBOLS 40 ... Recording sector 42 ... Sync frame 45 ... Sector information 46 ... Sector address number 47 ... Sector format information 48 ... Tracking method information 49 ... Reflectance information 50 ... Spindle motor 51 ... Phase comparison part 52 ... Driver 60 ... Pickup 61 ... RF Amplifier 62 ... Extraction unit 63 ... wobble detecting unit 64 ... LPP detection unit 65 ... crosstalk cancellation unit 66 ... LPP decoder 67 ... decoder 68 ... CPU
68m ... Memory 69 ... Band pass filter 70 ... Address detection circuit 71 ... Interface 72 ... DVD
80 ... Reserve area 81 ... Area information 82 ... Data format information 83 ... Recording surface number S ... Content distribution system B ... Light beam H, H '... Header N ... Unrecorded part (dummy data recording part)
IN ... Internet line SY ... Synchronization information CD ... Control information area LI ... Lead-in area FA ... File system information area DA ... Recording area LO ... Lead-out area Sd ... Playback signal Sr ... Recording signal Sp ... RF signal Sap ... Amplified signal Sdc ... demodulated signal Scl ... synchronization signal Scp ... phase difference signal Ssd, Sld ... drive signal So ... output signal Sbp ... band pass signal Sri ... processing recording signal Slpp ... LPP signal Swck ... recording clock signal Sdl ... address number signal Sadd ... address signal Se ... Modulation signal Sc ... Control signal Spc ... Power control signal

Claims (8)

The partial information constituting the main information repeatedly sent and the address information indicating the position on the recording medium where the partial information is to be recorded are received via the network and the partial information is recorded on the information storage medium. An information recording device,
Partial information receiving means for receiving the partial information;
Address information receiving means for receiving the address information corresponding to the partial information;
Recording means for recording the partial information at a position on the recording medium indicated by the address information;
Detecting means for detecting that recording of all the partial information constituting the main information is completed;
Stop control means for stopping recording of the partial information in response to detection by the detection means;
An information recording apparatus comprising:   The detecting means detects that the recording of all the partial information constituting the main information is completed when the partial information having the same content as the partial information first acquired for the main information is acquired again. The information recording apparatus according to claim 1. For the main information, having start address information storage means for storing the address information corresponding to the partial information acquired first,
The said stop control means stops recording of the said partial information, when the said partial information corresponding to the same address information as the address information memorize | stored in the said start address information storage means is received again. The information recording device according to claim 1 or 2. Final recording position detection means for detecting that the recording of the partial information by the recording means has reached a predetermined first position on the recording medium;
In response to detection by the final recording position detection means, recording of the partial information subsequent to the partial information recorded at the predetermined first position is resumed from a predetermined second position on the recording medium. The information recording device according to claim 2 or 3. The predetermined first position is an outermost peripheral position of a recording area in the information recording medium,
The information recording apparatus according to claim 4, wherein the predetermined second position is an innermost peripheral position of a recording area in the information recording medium. First output means for outputting partial information constituting main information;
Second output means for outputting, in accordance with a reproduction time series of the partial information, a configuration order of the partial information in the main information and address information indicating a position on the recording medium on which the partial information is to be recorded;
Control means for repeating the output by the first output means and the output by the second output means for a plurality of cycles with the main information as one cycle;
An information output device comprising: First output means for outputting partial information constituting main information;
Second output means for outputting order information indicating a recording order of the partial information in a recording medium, along a reproduction time series of the partial information;
Control means for repeating the output by the first output means and the output by the second output means for a plurality of cycles with the main information as one cycle;
An information output device comprising: First output means for outputting partial information constituting main information; second output means for outputting order information indicating a recording order of the partial information on a recording medium in a reproduction time series of the partial information; and An information recording apparatus for recording the partial information output from the information output apparatus, comprising: a control means for repeating the output from one output means and the output from the second output means for a plurality of cycles with the main information as one cycle. Because
Partial information receiving means capable of receiving the partial information from the middle of the main information;
Order information obtaining means for receiving the order information corresponding to the partial information;
Recording means for recording the partial information corresponding to the order information according to the order information;
Detecting means for detecting that recording of all the partial information constituting the main information is completed;
Stop control means for stopping recording of the partial information in response to detection by the detection means;
An information recording apparatus comprising:

Images