JP2003317379A - Information recording medium, information recording/ reproducing method and information recording/ reproducing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To acquire contents from the outside according to user authority information and to record the contents on an information recording medium. <P>SOLUTION: Additional information is reproduced from a reproduced signal read from an information recording medium 15 by an information reproducing part 16, and main information is acquired from the outside according to the user authority information contained in the additional information and recorded on the information recording medium 15 by an information recording part 14. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium on which main information composed of various contents such as music and video and additional information related to the main information is recorded, an information recording / reproducing method thereof and information recording / reproducing. Regarding the device.

[0002]

2. Description of the Related Art In recent years, digitized information of various contents such as music and video has been developed in recent years by promoting the development of multifunctional devices, high performance or high capacity processing, improvement of processing technology such as image compression technology, and Internet. Utilization is being promoted by improving the use environment by improving the processing speed and communication speed. The computerized information is, for example, a portable storage medium such as a fixed storage means such as a hard disk or a semiconductor memory provided in the device, or an optical disc, a magneto-optical disc, a magnetic disc or the like that can be carried by being inserted into and removed from the device (hereinafter referred to as information. The recording medium is collectively referred to as a recording medium) and is reproduced by an information reproducing apparatus or an information recording / reproducing apparatus (hereinafter collectively referred to as an information recording / reproducing apparatus) and recorded in an appropriate recording unit.

In general, an information recording medium has a recording area formatted into a main information recording area for recording main information and a predetermined control signal recording area for recording control signals and the like.
When the main information is recorded in the main information recording area, control information such as the recording position, time, recording method, etc. is recorded in the control signal recording area. In a conventional information recording medium, when a user reproduces main information by an information recording / reproducing apparatus, a control signal is read from a control signal recording area, and each main information is uniquely controlled and reproduced.
Therefore, in the conventional information recording medium, the main information is recorded as the information fixed based on the above conditions.

By the way, various electronic information, such as music information, video information, game software information, etc., can be accessed by a user through a communication means such as a wired or wireless communication to a predetermined provider. There is also a paid distribution service provided by doing so. Such an information distribution system is provided with a personal computer or a personal digital assistant (PDA: Personal Digital A) connected to the user from the provider side through a predetermined procedure.
ssistant) or the requested content information is supplied to a terminal device such as a mobile phone and recorded in an appropriate information recording medium. The information recording medium records the distributed content as fixed information in a predetermined format.

On the other hand, contents such as music information and video information are recorded on, for example, a CD-R (Compact Disc-Recordable) and provided to users. The CD-R can also be used, for example, by using the above-described information distribution system and additionally recording a new song that is not recorded on the album CD-R of a singer and additionally records it. The CD-R records music information, video information, and the like as fixed information, but it is possible to change the reproduction order and reproduce them arbitrarily by a setting operation on the information recording / reproducing apparatus side based on address information or the like. It Of course, the CD-R is regulated with respect to the control signal recorded in the control signal recording area, and it is not possible to record an arbitrary control signal for automatically selecting the reproduction order, for example.

[0006]

By the way, in the information recording / reproducing system for recording / reproducing information via the information recording medium such as the optical disc, the magnetic disc and the magneto-optical disc as described above, the recording on the information recording medium is performed. A predetermined recording format in which a recording area for management information for managing positions and a recording area for main information are individually secured is used, and additional information related to the main information, such as main information, is used. When recording identification information, link information, history information, etc., the recording area for main information and the recording area for additional information are generally reserved in advance as separate recording areas, or Since a new recording area for additional information was secured each time the main information was recorded, the main information composed of various contents such as music and video was recorded. When recording additional information related to the main information on the information recording medium, it is necessary to separately secure a recording area for the main information and a recording area for the additional information, and the recording area for the main information is There was a problem that it would decrease.

Further, in the conventional information recording / reproducing system, since plural pieces of information are not integrated and recorded, it is not possible to adaptively change the operation of the information recording / reproducing apparatus according to the defined information. could not. For example,
Considering a music CD-R that has been put into practical use as an information recording medium for recording and reproducing music, the information recording medium has a common specification, and the main information, that is, additional information related to the written music data, for example, identification information. Is scarce. Therefore, it is difficult to adaptively change the recording / reproducing method for each information recording medium or for each music. Also, for the same reason, it cannot be said to be perfect from the viewpoint of copyright protection / utilization.

Therefore, in view of the conventional problems as described above, an object of the present invention is to record information on an information recording medium by acquiring the content from the outside based on the recorded user authority information. A medium, an information recording / reproducing method, and an information recording / reproducing apparatus are provided.

Another object of the present invention is to provide an information recording medium, an information recording / reproducing method and an information recording / reproducing apparatus capable of updating user authority information.

Still another object of the present invention is to perform recording / recording based on the user authority information recorded on the information recording medium.
An object of the present invention is to provide an information recording / reproducing method and an information recording / reproducing apparatus capable of controlling the quality of contents during reproduction.

[0011]

SUMMARY OF THE INVENTION The present invention is an information recording medium on which main information and additional information are recorded. The information recording medium comprises identification information belonging to the recording medium and identification information belonging to the main information. And / or trigger information for adaptively changing the reproduction operation is recorded as the additional information.

Further, the present invention comprises at least identification information belonging to a recording medium including user authority information indicating a recordable content as main information, and adaptively changes the recording and / or reproducing operation of the main information. An information recording method for recording main information on an information recording medium prerecorded with trigger information as additional information, the additional information detecting step of detecting the additional information from a reproduction signal read from the information recording medium, Based on the information acquisition step of acquiring the main information and its copyright information, the copyright information of the main information acquired in the information acquisition step and the user authority information included in the additional information detected in the additional information detection step. Determining whether the main information acquired in the information acquisition step can be recorded in the information recording medium A determining step, and having an information recording step of the main information that has been determined to be recorded in the above determination step is recorded in said information recording medium.

Further, according to the present invention, the main information, the identification information belonging to the recording medium and the identification information belonging to the main information are added, and the trigger information for adaptively changing the recording and / or reproducing operation of the main information is added. An information reproducing method for reproducing main information and additional information from an information recording medium recorded as information, comprising: a main information detecting step of detecting main information from a reproduction signal read from the information recording medium; The additional information detecting step of detecting the additional information from the reproduction signal read from the medium, and the main information detected in the main information detecting step are adapted according to the additional information detected in the additional information detecting step. And an adaptive processing step of performing adaptive processing, and outputs main information adaptively processed according to the additional information. And wherein the door.

Further, the present invention comprises main information, identification information belonging to the recording medium and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is added. An information recording / reproducing method for reproducing main information and additional information from an information recording medium recorded as information, comprising: a main information detecting step of detecting main information from a reproduction signal read from the information recording medium; Depending on the additional information detected in the additional information detection step, with respect to the additional information detection step of detecting the additional information from the reproduction signal read from the recording medium, and the main information detected in the main information detection step. The adaptive processing step that performs adaptive processing, the main information that is adaptively processed in the adaptive processing step, and the corresponding information Information recording and reproducing method characterized by the additional information related to the information and an information recording step of recording on the information recording medium.

Further, the present invention comprises at least identification information belonging to a recording medium including user authority information indicating a recordable content as main information, and adaptively changes the recording and / or reproducing operation of the main information. An information recording device for recording main information on an information recording medium prerecorded with trigger information as additional information, the additional information detecting means detecting the additional information from a reproduction signal read from the information recording medium, Based on the information acquisition means for acquiring the main information and the copyright information thereof, the copyright information of the main information acquired by the information acquisition means, and the user authority information detected by the additional information detection means and included in the additional information, Determination means for determining whether or not the main information acquired by the information acquisition means can be recorded in the information recording medium The main information that has been determined to be recorded by said determining means, characterized in that it comprises an information recording means for recording on the information recording medium.

Further, the present invention comprises main information, identification information belonging to the recording medium and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is added. An information reproducing apparatus for reproducing main information and additional information from an information recording medium recorded as information, the main information detecting means detecting the main information from a reproduction signal read from the information recording medium, and the information recording. The additional information detecting means for detecting the additional information from the reproduction signal read from the medium and the main information detected by the main information detecting means are adapted according to the additional information detected by the additional information detecting means. And adaptive processing means for performing adaptive processing, and outputting main information subjected to adaptive processing according to the additional information. That.

Further, the present invention comprises main information, identification information belonging to the recording medium and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is added. An information recording / reproducing apparatus for reproducing main information and additional information from an information recording medium recorded as information, the main information detecting means detecting the main information from a reproduction signal read from the information recording medium, and the information. Depending on the additional information detected by the additional information detecting means, with respect to the additional information detecting means for detecting the additional information from the reproduction signal read from the recording medium and the main information detected by the main information detecting means. Related to the adaptive processing means for performing adaptive processing, the main information adaptively processed by the adaptive processing means, and the main information The additional information that is characterized by having a data recording means for recording on the information recording medium.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

The present invention is applied to an information recording / reproducing apparatus 10 having a structure as shown in FIG. 1, for example.

The information recording / reproducing apparatus 10 includes an operating section 1
1, a control unit 12 connected to the operation unit 11, an external input / output unit 13 connected to the control unit 12, an information recording unit 14
The information reproducing unit 16, the information recording unit 14, and the information reproducing unit 16 include an information recording medium 15 on which main information and additional information related to the main information are recorded and / or reproduced.

The operation unit 11 is composed of a user interface for performing an operation, a display device showing the state of the system, and the like. The operation unit 11 displays the system state and changes the state of the user interface according to the control signal input from the control unit 12, and outputs an operation signal according to the user's operation to the control unit 12.

The control unit 12 includes an operation signal input from the operation unit 11, an external input / output unit 13, an information recording unit 14,
A control signal is generated based on the status signal input from the information reproducing unit 16, and is output to the operation unit 11, the external input / output unit 13, the information recording unit 14, and the information reproducing unit 16.

The external input / output unit 13 is an interface with external equipment, and exchanges signals with the outside according to a control signal input from the control unit 12. External input / output unit 13
Outputs a signal input from the outside to the information reproducing unit 16, and outputs a signal input from the information reproducing unit 16 to the outside. Also, a status signal indicating the state of the external input / output unit 13 is output to the control unit 12.

The information recording unit 14 records the main information and the additional information input from the information reproducing unit 16 on the information recording medium 15 according to the control signal input from the control unit 12.
Also, a status signal indicating the state of the information recording unit 14 is output to the control unit 12.

The information reproducing section 16 reads the main information and the additional information from the information recording medium 15 and the external input / output section 13 according to the control signal input from the control section 12, and the main information is read according to the read additional information. Adaptive processing is performed, and additional information is updated. After the adaptation process, the main information can be reproduced, and the main information and the additional information are recorded in the information recording unit 14 and the external input / output unit 13.
Output to. Also, a status signal indicating the state of the information reproducing unit 16 is output to the control unit 12.

Next, details of each section will be described. Each unit in the block diagram used in the following description exchanges a control signal and a status signal with the control unit 12, but this is omitted because the diagram becomes complicated.

An example of the structure of the external input / output unit 13 is shown in the block diagram of FIG.

The external input / output unit 13 of the configuration example shown in FIG.
Is composed of a communication unit 31 and a buffer unit 32.

In the external input / output unit 13, the communication unit 3
1 has a function of communicating with an external network 33, for example, the Internet network, and exchanges signals with the external network 33. Further, the buffer unit 32 is prepared in consideration of the influence of a time lag occurring when signals are exchanged between the outside and the inside, and has a function of temporarily storing the input signal and outputting it.

Another block diagram of the external input / output unit 13 is shown in the block diagram of FIG.

The external input / output unit 13 of the configuration example shown in FIG.
Is composed of an external device connecting section 41 and a buffer section 42.

In the external input / output unit 13, the external device connection unit 41 has a function of connecting and communicating with an external device, for example, a portable recording / reproducing apparatus, and exchanges signals with the external device 43. The buffer unit 42 is prepared in consideration of the influence of a time shift that occurs when signals are exchanged between the outside and the inside, and has a function of temporarily storing and outputting the input signal.

Here, the external input / output unit 13 is the communication unit 31.
It is also possible to have a configuration having a plurality of external device connection sections 41,
A configuration having a combination of the communication unit 31 and the external device connection unit 41 is also possible.

Next, a specific configuration example of the information recording section 14 is shown in the block diagram of FIG.

The information recording section 14 of the configuration example shown in FIG.
Is a main information processing unit 51 to which main information is input, an additional information processing unit 52 to which additional information related to the main information is input, main information processed by the main information processing unit 51, and the additional information processing unit. The multiplex recording processing unit 56 is supplied with the additional information processed by 52.

In the information recording unit 14, the main information processing unit 51 performs main information processing for recording the main information as a recording mark on the information recording medium 15, and the main information is the main information encoded data. And is supplied to the multiplex recording processing unit 56.

Further, the additional information processing section 52 multiplexes the additional information into the main information as the statistically detectable change information of the recording mark recorded on the information recording medium 15 and records it on the information recording medium 15. Additional information processing is performed, and the additional information is converted into statistically detectable change information of the recording mark recorded on the information recording medium 15 and supplied to the multiplex recording processing unit 56.

The additional information processing unit 52 includes an additional information encoding unit 53 to which additional information is input, a statistical feature amount conversion unit 54 to which additional information encoded data is supplied from the additional information encoding unit 53, and The statistical feature amount conversion unit 54 includes a statistical feature amount determination unit 55 to which the statistical feature amount is supplied.

Here, as the statistically detectable change information of the recording mark recorded on the information recording medium 15, for example, the above-mentioned recording obtained by statistically processing the jitter component of the shape or position of the recording mark. It is possible to use the feature amount related to the position of the peak of the jitter frequency of the mark shape or position.

The statistical feature amount conversion unit 54 converts the additional information coded data supplied from the additional information encoding unit 53 into a feature amount relating to the position of the peak of the jitter frequency.

Then, in the statistical characteristic amount determining section 55, the statistically detectable change of the recording mark recorded on the information recording medium 15 is calculated from the statistical characteristic value supplied from the statistical characteristic value converting section 54. The jitter amount at the time of actually recording as information is determined, and the information of the determined jitter amount is used as, for example, write timing control information, the multiplex recording processor 56.
Supply to.

For the determination of the amount of jitter, it is possible to employ a table method for converting encoded data into the amount of jitter.

The multiplexed recording processing unit 56 adds the additional information processed by the additional information processing unit 52 to the main information processed by the main information processing unit 51, and adds a recording mark indicating the main information. A process for multiplexing the main information and the additional information on the information recording medium 15 by multiplexing as change information that can be statistically detected, and the amount of jitter supplied from the statistical feature amount determining unit 55. The main information encoded data encoded by the main information processing section 51 is actually recorded in the information recording medium 15 using the information as the write timing control information.

In the information recording unit 14 having such a structure, additional information is embedded as information of the peak position of the jitter frequency at the position of the record mark which can be statistically detected, according to the procedure shown in the flowchart of FIG. Medium 15
To record.

That is, in recording the additional information, the information recording unit 14 first sets the recording method of the additional information in the header (step S1). Next, the additional information coded data encoded by the additional information processing unit 52 is converted into a feature amount, that is, a statistical feature amount regarding the position of the peak of the jitter frequency, for example, in the statistical feature amount conversion unit 54 (step S2). Further, based on the statistical feature amount given by the statistical feature amount conversion unit 54, the statistical feature amount determination unit 55 causes the multiplex recording processing unit 56 to set the jitter amount when the recording mark is actually recorded. Set (step S3). Then, the multiplex recording processing section 56.
Thus, the main information encoded data encoded by the main information processing section 51 is recorded in the information recording medium 15 (step S4).

The position of the recording mark M recorded on the information recording medium 15 in this manner changes according to the jitter amount information, as shown by the broken line in FIG.

Therefore, for example, as shown in FIG. 7A, the peak position of the jitter frequency statistically detected from the recording mark recorded at the regular recording timing is "0", and the peak position of FIG. As shown in (B), the peak position of the jitter frequency statistically detected from the recording mark recorded at the recording timing advanced from the regular recording timing is “1”, and further, in (C) of FIG. As shown, by defining the peak position of the jitter frequency statistically detected from the recording mark recorded at the recording timing delayed from the regular recording timing as “−1”, the statistically detectable recording The additional information can be indicated by the three values given at the peak position of the jitter frequency at the mark position.

Further, as shown in the block diagram of FIG. 8, the information reproducing section 16 of the information recording / reproducing apparatus 10 reads the reproduction data from the information recording medium 15 and separates it into main information and additional information. Unit 61, adaptive processing unit 62 that applies adaptive processing to the main information separated by the information separating unit 61 according to additional information, and this adaptive processing unit 6
2 comprises a reproduction processing unit 63 for generating a reproduction signal from the main information which has been subjected to the adaptive processing.

Information reproducing section 1 shown in the block diagram of FIG.
In 6, the information separating unit 61 reads the information recorded on the information recording medium 15, separates it into main information and additional information, and outputs them to the adaptive processing unit 62. The adaptive processing unit 62 also receives the main information input from the information separating unit 61 and the external input according to the additional information input from the information separating unit 61 and / or the control information input from the external input / output unit 13. The input information input from the output unit 13 is adaptively processed, and the main information as a processing result is output to the information reproduction processing unit 64. In addition, the adaptive processing unit 62
Outputs the input additional information as it is or after updating it. Then, the reproduction processing unit 63 generates a reproduction signal from the main information input from the adaptation processing unit 62.

Here, a concrete configuration example of the information separating section 61 is shown in a block diagram of FIG.

The information separating section 61 of the configuration example shown in FIG.
Is a data reading section 71 for reading reproduction data from the information recording medium 15, a data analysis section 72 to which the reproduction data read by the data reading section 71 is supplied,
The main information decoding processing unit 73 to which the main information component is supplied from the data analyzing unit 72, the peak position detecting unit 74 to which the jitter information component is supplied from the data analyzing unit 72, and the peak position feature amount from the peak position detecting unit 74. Of the additional information decoding processing unit 76 to which the additional information encoded data is supplied from the statistical feature amount conversion unit 75.

The information separating unit 61 performs the processing according to the procedure shown in the flowchart of FIG.
The information recorded in No. 5 is read out, separated into main information and additional information, and supplied to the adaptive processing unit 62.

That is, the reproduction data is read from the information recording medium 15 by the data reading section 71 (step S11).

Then, the data analysis section 72 separates the reproduced data into a main information component and a jitter information component (step S12).

Next, the main information decoding processing unit 73 decodes the main information by performing decoding processing on the main information component separated from the reproduction data by the data analysis unit 72 (step S13).

Further, in the peak position detecting section 74, a jitter statistic is obtained by statistical processing for the jitter information component separated from the reproduction data by the data analyzing section 72 (step S14), and the peak of the obtained jitter statistic is calculated. The position feature amount is detected as statistical feature amount information (step S15). Here, the jitter statistic is RF
The frequency of the phase difference information between the signal and the clock is statistically obtained.

Next, in the statistical feature quantity conversion unit 75,
The statistical feature amount information detected by the peak position detection unit 74 is converted into additional information encoded data (step S1).
6).

Then, the additional information decoding processing unit 76 decodes the additional information by performing a decoding process on the additional information encoded data converted by the statistical feature amount conversion unit 75 (step S17).

Further, in the adaptive processing section 62 of the information recording / reproducing apparatus 10, the main information separated from the reproduced data in the information separating section 61 is realized in scalability, authority is added, another function is added, special processing or Adaptive processing such as compression processing is performed on the basis of the additional information separated from the reproduction data by the information separation unit 61.

Here, in this information recording / reproducing apparatus 10,
As the additional information related to the main information, for example, FIG.
As shown in FIG. 1, trigger information including the identification information belonging to the information recording medium 15 and the identification information belonging to the main information and adapted to adaptively change the recording and / or reproducing operation of the main information is recorded.

The identification information belonging to the information recording medium 15 includes identification information of the information recording medium 15, user authorization information such as grade identification information and recording / updating information, owner identification information, and the like.

The identification information belonging to the main information includes content identification information, content copyright information such as artist and company identification information, and content quality information.

Then, in the information recording / reproducing apparatus 10,
For example, according to the procedure shown in the flowchart of FIG. 12, a process of externally acquiring the content and recording the content on the information recording medium 15 is performed based on the user authority information included in the additional information as the identification information belonging to the information recording medium 15.

In the flowchart of FIG. 12, in step S21, the user information (trigger information 1) is read from the information recording medium 15 by the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10.

In the next step S22, the information recording / reproducing apparatus 10 receives the content (main information) and the copyright information (trigger information 2) of the content from the external device via the external input / output unit 13.

In the next step S23, the information reproducing section 16
In the adaptation processing unit 62, whether or not the content input from the external device can be recorded in the information recording medium 15 is determined based on the trigger information 1, that is, the user authority information and the trigger information 2, that is, the copyright information.

If it is determined in step S23 that recording is possible, in step S24 the main information and the trigger information 2 input from the external device are written in the information recording medium 15 by the information recording unit 14, and the process ends. To do.

If it is determined in step S23 that recording is not possible, the user is informed of that fact in step S25, and the process ends without recording.

In the information recording / reproducing apparatus 10, the content can be acquired from the outside and recorded in the information recording medium 15 based on the user authority information recorded in the information recording medium 15 in this way. Therefore, when selling an empty information recording medium 15 on which information can be recorded, it is possible to control the recordable content for each information recording medium 15 by writing the user authority information in advance on the information recording medium 15. it can. Specifically, it becomes possible to provide the information recording medium 15 that can record only the music of a certain artist and the information recording medium 15 that can record only the music of a certain music company, and clarify the flow of the royalty fee. be able to.

In the information recording / reproducing apparatus 10, the user authority information is updated according to the procedure shown in the flowchart of FIG. 13, for example.

That is, in the flowchart of FIG. 13, in step S31, the user authority information (trigger information 1) is read from the information recording medium 15 in the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10. .

In the next step S32, the additional information decoding processing unit 76 reads the copyright information (trigger information 2) of all contents recorded on the information recording medium 15.

In the next step S33, the external input / output unit 13 of the information recording / reproducing apparatus 10 is operated by the network 33.
Connect to the device of the update service provider through and the user selects the desired authority.

Then, in the next step S34, the charging / settlement process is performed in the device of the update service provider based on the authority selected by the user in step S33 and the trigger information 1 and the trigger information 2.

Then, in the next step S35, the new user authority information (trigger information 1 ') input from the device of the update service provider is displayed when the charging / clearing process is normally performed in step S34. The information recording unit 14 writes the information on the information recording medium 15.

In this information recording / reproducing apparatus 10, since the user authority information of the information recording medium 15 can be updated in this way, the user can update the authority information as necessary even after purchasing the information recording medium 15. can do. Therefore, the user can update the user authorization information to
The flow of the copyright usage fee can be clarified by controlling the recordable content according to the information recording medium 15 and performing charging / clearing according to the user authority when updating the authority information.

In the information recording / reproducing apparatus 10, the adaptive processing section 62 reproduces the main information based on the identification information belonging to the main information included in the additional information in accordance with the procedure shown in the flowchart of FIG. 14, for example. , Processing for adaptively changing the quality of the main information.

That is, in the flowchart of FIG. 14, in step S41, the additional information decoding processing section 76 of the information reproducing section 16 of the information recording / reproducing apparatus 10 reproduces the user authority information (trigger information 1) from the information recording medium 15. The target content (main information) and the content quality information (trigger information 2) are read.

In the next step S42, the information reproducing section 16
In the adaptation processing unit 62, whether or not the user authority for the quality of the content to be reproduced is sufficient is determined based on the trigger information 1 and the trigger information 2.

When it is determined in step S42 that the user authority is not sufficient, the adaptive processing unit 62 processes the main information according to the trigger information 1 and supplies it to the reproduction processing unit 63 in step S44. Then, in the next step S44, the reproduction processing unit 63 reproduces the main information processed in step S44.

If it is determined in step S42 that the user authority is sufficient, then step S42 is performed.
At 44, the main information is directly supplied from the adaptation processing unit 62 to the reproduction processing unit 63 to reproduce the main information.

In the information recording / reproducing apparatus 10, the quality of the content can be controlled at the time of reproduction based on the user authority information recorded on the information recording medium 15 in this way. Therefore, when the information recording medium 15 is sold, by writing the user authority information in the information recording medium 15 in advance, it is possible to control the quality of the content at the time of reproduction for each information recording medium 15. For example, the information recording medium 15 in which exactly the same information as the product version other than the user authority information is recorded is reproduced by the trigger information with a quality that is inferior to the product version, and is used as a sample version, for example. be able to.

In this case, the information recording / reproducing apparatus 10 is
For example, the user authority information is updated according to the procedure shown in the flowchart of FIG.

That is, in the flowchart of FIG. 15, in step S51, the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10 reads the user authority information (trigger information 1) from the information recording medium 15. .

In the next step S52, the network 33 is set in the external input / output unit 13 of the information recording / reproducing apparatus 10.
Connect to the device of the update service provider through and the user selects the desired authority.

Then, in the next step S53, the device of the update service provider performs the charging / clearing process based on the authority selected by the user in step S53 and the trigger information 1 and the trigger information 2.

Then, in the next step S54, the new user authority information (trigger information 1 ') input from the device of the update service provider is input when the charging / clearing process is normally performed in step S53. The information recording unit 14 writes the information on the information recording medium 15.

In this information recording / reproducing apparatus 10, since the user authority information of the information recording medium 15 can be updated in this way, the user can update the authority information as necessary even after purchasing the information recording medium 15. can do. Therefore, if the user likes the sample version, the user can update the user authority information to update the information recording medium 1
It is possible to obtain exactly the same quality as the product version without purchasing 5 again.

Further, in the information recording / reproducing apparatus 10, the adaptive processing section 62 records the main information based on the identification information belonging to the main information included in the additional information in accordance with the procedure shown in the flowchart of FIG. 16, for example. , Processing for adaptively changing the quality of the main information.

That is, in the flowchart of FIG. 16, in step S61, the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10 reads the user authority information (trigger information 1) from the information recording medium 15. .

In the next step S62, the external input / output unit 13 of the information recording / reproducing apparatus 10 inputs the content (main information) and the content quality information (trigger information) from the external device 43.

In the next step S63, the information reproducing section 16
The adaptive processing unit 62 determines whether the user authority for the quality of the content to be recorded is sufficient based on the trigger information 1 and the trigger information 2.

When it is determined in step S63 that the user authority is not sufficient, the adaptive processing section 62 processes the main information according to the trigger information 1 and supplies it to the information recording section 14 in step S64. Then, in the next step S65, the information recording section 14 records the main information processed in the above step S64 on the information recording medium 15.

When it is determined in step S63 that the user authority is sufficient, the above step S63 is performed.
At 64, the main information is supplied from the adaptive processing unit 62 to the information recording unit 14 as it is, and the main information is recorded on the information recording medium 15.

In this information recording / reproducing apparatus 10, the quality of the content can be controlled at the time of recording based on the user authority information recorded on the information recording medium 15 in this way. Therefore, when the information recording medium 15 is sold, by writing the user authority information in the information recording medium 15 in advance, it is possible to control the quality of the content at the time of recording for each information recording medium 15. Thereby, for example, it is possible to provide the information recording medium 15 that can be priced according to the quality of recording.

Furthermore, by making the user authority information of the information recording medium 15 updatable, the information recording medium 15 is updated.
Even after the purchase, the user updates the authority information as necessary, so that the information recording medium 15 can be re-purchased without any new purchase.
It becomes possible to obtain high recording quality.

Further, in this information recording / reproducing apparatus 10, the adaptive processing section 62 automatically creates the content based on the identification information belonging to the main information included in the additional information, for example, according to the procedure shown in the flowchart of FIG. Perform update processing.

That is, in the flowchart of FIG. 17, in step S71, the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10 reproduces the user authority information (trigger information 1) from the information recording medium 15. The target content (main information) and the content quality information (trigger information 2) are read.

At the next step S72, the network 33 is used in the external input / output unit 13 of the information recording / reproducing apparatus 10.
Through the device of the update service provider to download updatable content (main information) and quality information (trigger information 2 ') attached to the content based on the above three types of trigger information 1 to 3. Here, it is possible for the device side of the service provider or the adaptive processing unit 62 to determine the updatable content. Also, the user can select the desired quality content within the authority.

Then, in the next step S73, if there is an updatable content, the new content (main information) and quality information (trigger information 2 ') input from the device of the update service provider are recorded in the information recording section. It writes in the information recording medium 15 by 14.

As described above, in this information recording / reproducing apparatus 10, the quality of contents can be automatically updated according to the user authority information of the information recording medium 15.

Specifically, when the quality of the content recorded on the information recording medium 15 is lower than the recordable quality,
Automatically update to the same content information of recordable quality. For example, if only the right to view a certain content is obtained, the quality only depends on the environment such as the network bandwidth, and it is possible to provide the information recording medium 15 whose quality can be updated whenever the environment is prepared.

Next, an information distribution / charging system for carrying out information distribution and charging processing to the information recording / reproducing apparatus 10 will be described with reference to FIGS. 18 and 19.

In the information recording / reproducing apparatus 10 using the above-described information recording medium 15, as shown in FIG. 18, the information recording / reproducing apparatuses 10A to 10N owned by a large number of users connect the network 33 by the respective external input / output units 13. By being connected to the external information distribution institution 3 and the external institution 1 such as the external billing processing institution 4 via the external information distribution institution 3, contents such as music albums and movie programs, and other appropriate new main information or part of information distribution service is received. Information distribution system 100
To build.

In this information distribution system 100, FIG.
The information distribution service is performed according to the procedure shown in the flowchart of FIG.

That is, in the flow chart of FIG. 19, in step S81, the information recording / reproducing apparatus 10 is
In the additional information decoding processing unit 76 of the information reproducing unit 16, the user authority information (trigger information 1) is read from the information recording medium 15.

In the next step S82, the information recording / reproducing apparatus 10 transmits the user identification information and the authentication information such as the password to the external institution 1 via the external input / output unit 13 to apply for use.

In the next step S82, the external engine 1
Authenticates the user based on the received user identification information and authentication information, and transmits availability.

In the next step S83, the information recording / reproducing apparatus 10 determines whether the external organization 1 is available.

If the external institution 1 is available in step S83, the user requests the external institution 1 for the content to be recorded in the next step S84.

In the next step S85, the external engine 1
Outputs copyright information (trigger information 2) of the requested content.

In the next step S86, the information recording / reproducing apparatus 10 adds the additional information decoding processing section 7 of the information reproducing section 16.
At 6, it is determined whether the content to be recorded can be recorded on the information recording medium 15 based on the user authority information (trigger information 1) and the copyright information (trigger information 2).

When it is determined in step S86 that the content can be recorded, in the next step S87, the external institution 1 performs the charging process and outputs the content (main information).

In the next step S88, the information recording / reproducing apparatus 10 writes the main information and the trigger information 2 in the information recording medium 15 by the information recording section 14.

In the above process, if it is determined that recording is impossible, the user is notified of that fact and the process ends without recording.

By constructing the information distribution system 100 using the information recording / reproducing apparatus 10 as described above,
When selling an empty information recording medium 15 on which information can be recorded, it is possible to previously write user authority information on the information recording medium 15 and control the recordable content according to the information recording medium 15. Specifically, it is possible to provide a trigger device capable of recording only songs of a certain artist and an information recording medium 15 capable of recording only music of a certain music company, which makes it possible to clarify the flow of copyright usage fees.

In the information recording / reproducing apparatus 10, the additional information related to the main information is used as the statistically detectable change information of the recording mark recorded as the main information including various contents such as music and video. Since the information is multiplexed and recorded on the information recording medium 15, it is possible to record additional information related to the main information together with the main information including various contents such as music and video without reducing the recording area for the main information.

As the information recording medium 15, various types of media such as a magnetic tape, an optical disc, a magnetic disc, a magneto-optical disc, and a semiconductor can be used.

Further, in this embodiment, the information recording unit 1
Although the present invention is applied to the information recording / reproducing apparatus 10 including the information reproducing unit 4 and the information reproducing unit 16, the information reproducing apparatus omitting the information reproducing unit 16 and the information reproducing apparatus omitting the information recording unit 14 are configured separately. Alternatively, the information recording / reproducing system may be constructed by the information recording device and the information reproducing device.

Further, in this embodiment, the main information and the additional information are multiplexed and recorded on the information recording medium 15. However, the information recording area for the main information and the information recording area for the additional information are formed on the information recording medium 15. Alternatively, the main information and the additional information may be recorded in separate recording areas.

[0121]

As described above, according to the present invention,
Based on the user authority information recorded on the information recording medium, the content can be acquired from the outside and recorded on the information recording medium. Therefore, by writing the user authority information in the information recording medium in advance, it is possible to control the recordable content for each information recording medium. For example, the information recording medium in which only the music of a certain artist can be recorded or the certain music is recorded. It is possible to provide an information recording medium that can record only company music, and clarify the flow of copyright usage fees. Moreover, since the user authority information of the information recording medium can be updated, the user can update the authority information as necessary even after purchasing the information recording medium.

Further, according to the present invention, by recording the user authority information in the information recording medium in advance, it is possible to control the recordable content according to the information recording medium.

Since the user authority information of the information recording medium can be updated, the user can update the authority information as needed even after purchasing the information recording medium.

Further, according to the present invention, the quality of contents can be controlled at the time of reproduction based on the user authority information recorded on the information recording medium.

Further, according to the present invention, the quality of contents can be controlled at the time of recording based on the user authority information recorded on the information recording medium.

Further, according to the present invention, by writing the user authority information in the information recording medium in advance, it is possible to control the quality of the content at the time of recording for each information recording medium.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of an information recording / reproducing apparatus to which the present invention has been applied.

FIG. 2 is a block diagram showing a configuration example of an external input / output unit in the information recording / reproducing apparatus.

FIG. 3 is a block diagram showing another configuration example of an external input / output unit in the information recording / reproducing apparatus.

FIG. 4 is a block diagram showing a specific configuration example of an information recording unit in the information recording / reproducing apparatus.

FIG. 5 is a flowchart showing a procedure of recording processing by the information recording unit.

FIG. 6 is a diagram schematically showing changes in the positions of recording marks recorded on the information recording medium by the information recording unit.

FIG. 7 is a diagram schematically showing a relationship between a jitter frequency peak position statistically detected from a recording mark recorded on the information recording medium and additional information.

FIG. 8 is a block diagram showing a configuration of an information reproducing section in the information recording / reproducing apparatus.

FIG. 9 is a block diagram showing a specific configuration example of an information separation unit in the information reproduction unit.

FIG. 10 is a flowchart showing a procedure of a process of separating main information and additional information in the information separating unit.

FIG. 11 is a diagram showing the content of trigger information recorded as additional information related to main information on an information recording medium by the information recording / reproducing apparatus.

FIG. 12 is a flowchart showing a procedure of a process of acquiring the content from the outside and recording the content on the information recording medium based on the user authority information included in the additional information as the identification information belonging to the information recording medium by the information recording / reproducing apparatus. Is.

FIG. 13 is a flowchart showing a processing procedure when the user authority information is updated by the information recording / reproducing apparatus.

FIG. 14 is a flowchart showing a procedure of processing for adaptively changing the quality of the main information at the time of reproducing the main information based on the identification information belonging to the main information included in the additional information, by the information recording / reproducing apparatus. is there.

FIG. 15 is a flowchart showing a processing procedure for updating user authority information by the information recording / reproducing apparatus.

FIG. 16 is a flowchart showing a procedure of a process for adaptively changing the quality of the main information when recording the main information based on the identification information belonging to the main information included in the additional information, by the information recording / reproducing device. is there.

FIG. 17 is a flowchart showing a procedure of a process of automatically updating the content by the information recording / reproducing device based on the identification information belonging to the main information included in the additional information.

FIG. 18 is a block diagram showing a configuration of an information distribution system constructed by using a plurality of the information recording / reproducing devices.

FIG. 19 is a flowchart showing a processing procedure of an information distribution service in the information distribution system.

[Explanation of symbols]

10 information recording / reproducing apparatus, 11 operation unit, 12 control unit, 13 external input / output unit, 14 information recording unit, 15 information recording medium, 16 information reproducing unit, 31 communication unit, 32
Buffer unit, 33 network, 41 external device connection unit, 42 buffer unit, 43 external device, 51 main information processing unit, 52 additional information processing unit, 53 additional information encoding unit, 54 statistical feature amount conversion unit, 55 statistical Feature amount determination unit, 56 multiplex recording processing unit, 61 information separation unit,
62 adaptation processing unit, 63 reproduction processing unit, 64 information reproduction processing unit, 71 data reading unit, 72 data analysis unit, 73 main information decoding processing unit, 74 peak position detection unit, 75 statistical feature amount conversion unit, 76 additional information Decryption processing unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G11B 7/0045 G11B 7/0045 Z 7/005 7/005 Z 20/12 20/12 // H04N 5 / 91 H04N 5/91 P (72) Inventor Takashi Sawao 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Naoki Fujiwara 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor Shizuo Chikaoka 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation F-term (reference) 5B017 AA07 BA06 BB06 CA16 5C053 FA13 FA23 GA11 GB06 GB21 JA21 LA14 5D044 AB05 AB07 BC01 BC04 CC04 DE45 DE49 DE57 DE58 EF05 FG18 GK17 HL02 5D090 AA01 BB04 CC02 CC04 CC14 DD03 FF09 GG32 GG33

Claims (34)

[Claims] 1. An information recording medium for recording main information and additional information, comprising identification information belonging to the recording medium and identification information belonging to the main information, and adapted to record and / or reproduce the main information. An information recording medium, characterized in that trigger information to be changed dynamically is recorded as the additional information. 2. As the identification information belonging to the recording medium,
The information recording medium according to claim 1, wherein user authority information indicating a recordable content is recorded as main information. 3. The information recording medium according to claim 1, wherein content copyright information is recorded as identification information belonging to the main information. 4. The information recording medium according to claim 1, wherein information indicating quality at the time of recording / reproducing the main information is recorded as the identification information belonging to the main information. 5. Trigger information, which comprises at least identification information belonging to a recording medium including user authority information indicating recordable content as main information, and which adaptively changes a recording and / or reproducing operation of the main information. An information recording method for recording main information on an information recording medium prerecorded as additional information, comprising: an additional information detecting step of detecting the additional information from a reproduction signal read from the information recording medium; The information acquisition step of acquiring copyright information, the copyright information of the main information acquired in the information acquisition step, and the information acquisition based on the user authority information included in the additional information detected in the additional information detection step. Judgment step for judging whether or not the main information acquired in the step can be recorded in the information recording medium And an information recording step of recording the main information determined to be recordable in the determination step onto the information recording medium. 6. The information recording method according to claim 5, further comprising an update processing step of acquiring new user authority information and writing it in the information recording medium. 7. The information recording method according to claim 6, wherein in the update processing step, a payment process is performed when new main information is acquired from the outside. 8. Main information, identification information belonging to a recording medium and identification information belonging to main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded as additional information. An information reproducing method for reproducing main information and additional information from an information recording medium, the main information detecting step of detecting main information from a reproduction signal read from the information recording medium; An additional information detecting step of detecting the additional information from the reproduced signal, and an adaptive process for the main information detected in the main information detecting step according to the additional information detected in the additional information detecting step. And an adaptive processing step for performing, and outputting the main information that is adaptively processed according to the additional information. Information reproducing how. 9. In the adaptive processing step, based on identification information belonging to a recording medium included in the additional information detected in the additional information detecting step, with respect to the main information detected in the main information detecting step, 9. The information reproducing method according to claim 8, wherein adaptive processing is performed according to user authority. 10. The main information based on identification information belonging to the main information included in the additional information detected in the additional information detecting step, as the adaptive processing according to the user authority in the adaptive processing step. 9. The information reproducing method according to claim 8, further comprising the step of adaptively changing the quality of. 11. The main information detected in the main information detecting step is based on the additional information detected in the additional information detecting step and the newly input external input additional information in the adaptive processing step. 9. The information reproducing method according to claim 8, wherein adaptive processing is performed. 12. Main information, identification information belonging to a recording medium and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded as additional information. An information recording / reproducing method for reproducing main information and additional information from an information recording medium, the main information detecting step of detecting main information from a reproduction signal read from the information recording medium, and reading from the information recording medium. An additional information detecting step of detecting the additional information from the reproduced signal obtained, and an adaptive process for the main information detected in the main information detecting step according to the additional information detected in the additional information detecting step. Is applied to the main information processed adaptively in the adaptive processing step and the main information concerned. Information recording and reproducing method characterized by the additional information and an information recording step of recording on the information recording medium. 13. The user provided in the adaptive processing step as identification information belonging to a recording medium included in the additional information detected in the additional information detecting step, with respect to the main information detected in the main information detecting step. 13. The information recording / reproducing method according to claim 12, wherein adaptive processing is performed according to the authority information. 14. The main information based on identification information belonging to the main information included in the additional information detected in the additional information detecting step, as adaptive processing according to the user authority in the adaptive processing step. 14. The information recording / reproducing method according to claim 13, further comprising the step of adaptively changing the quality of. 15. The main information detected in the main information detecting step based on the additional information detected in the additional information detecting step and the newly input external input additional information in the adaptive processing step. 13. The information recording / reproducing method according to claim 12, wherein adaptive processing is performed. 16. In the adaptive processing step, main information is automatically acquired from the outside based on user authority information given as identification information belonging to a recording medium included in the additional information detected in the additional information detecting step. Then, in the information recording step, the main information obtained in the adaptive processing step and additional information related to the main information are recorded in an information recording medium.
2. The information recording / reproducing method described in 2. 17. The information recording / reproducing method according to claim 16, wherein, in the adaptive processing step, a payment process is performed when the main information is automatically acquired from the outside. 18. The information recording method according to claim 12, further comprising an update processing step of acquiring new user authority information and writing it in the information recording medium. 19. The information recording / reproducing method according to claim 18, wherein in the update processing step, a payment process is performed when new main information is acquired from the outside. 20. At least identification information belonging to a recording medium including user authority information indicating recordable content as main information, and recording and / or recording of the main information.
Or an information recording device for recording main information on an information recording medium in which trigger information for adaptively changing a reproducing operation is recorded as additional information, and the additional information is obtained from a reproduction signal read from the information recording medium. Included in the additional information detecting means for detecting the main information, the information acquiring means for acquiring the main information and the copyright information thereof, the copyright information of the main information acquired by the information acquiring means, and the additional information detected by the additional information detecting means. Determination means for determining whether or not the main information acquired in the information acquisition step can be recorded on the information recording medium based on the user authority information, and main information determined to be recordable by the determination means An information recording device, comprising: an information recording means for recording the information on the information recording medium. 21. The information recording apparatus according to claim 20, further comprising update processing means for acquiring new user authority information and writing it in the information recording medium. 22. The information recording apparatus according to claim 21, wherein the update processing means performs a payment process when acquiring new main information from the outside. 23. Main information, identification information belonging to a recording medium and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded as additional information. An information reproducing apparatus for reproducing main information and additional information from an information recording medium, the main information detecting means for detecting main information from a reproduction signal read from the information recording medium, and an information reproducing device read from the information recording medium. Additional information detecting means for detecting the additional information from the reproduced signal, and adaptive processing for the main information detected by the main information detecting means in accordance with the additional information detected by the additional information detecting means. And an adaptive processing unit which performs adaptive processing, and which outputs main information that is adaptively processed according to the additional information. Apparatus. 24. The main information detected by the main information detecting means in the adaptive processing means,
3. The adaptive processing is performed according to the user authority based on the identification information belonging to the recording medium included in the additional information detected by the additional information detecting means.
3. The information reproducing device described in 3. 25. In the adaptive processing means, as the adaptive processing according to the user authority, the main information is based on identification information belonging to the main information included in the additional information detected by the additional information detecting means. 3. A process for adaptively changing the quality of the image is performed.
3. The information reproducing device described in 3. 26. In the adaptive processing means, the main information detected by the main information detecting means is based on the additional information detected by the additional information detecting means and the newly input externally input additional information. 24. The information reproducing apparatus according to claim 23, which performs adaptive processing. 27. Main information, identification information belonging to a recording medium, and identification information belonging to the main information, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded as additional information. An information recording / reproducing apparatus for reproducing main information and additional information from an information recording medium, the main information detecting means detecting the main information from a reproduction signal read from the information recording medium, and reading from the information recording medium. Additional information detecting means for detecting the additional information from the reproduced signal, and adaptive processing for the main information detected by the main information detecting means in accordance with the additional information detected by the additional information detecting means. The adaptive processing means for applying the main information, the main information adaptively processed by the adaptive processing means, and the additional information related to the main information. The information recording and reproducing apparatus characterized by having an information recording means for recording on the information recording medium. 28. The main information detected by the main information detecting means in the adaptive processing means,
28. The information recording / reproducing apparatus according to claim 27, wherein adaptive processing is performed according to user authority information given as identification information belonging to a recording medium included in the additional information detected by the additional information detecting means. 29. In the adaptive processing means, as the adaptive processing according to the user authority, the main information is based on identification information belonging to the main information included in the additional information detected by the additional information detecting means. 3. A process for adaptively changing the quality of the image is performed.
8. The information recording / reproducing apparatus according to item 8. 30. Based on the additional information detected by the additional information detecting means and the newly input external input additional information in the adaptive processing means, with respect to the main information detected by the main information detecting means. 28. The information recording / reproducing apparatus according to claim 27, which performs adaptive processing. 31. The adaptive processing means automatically obtains main information from the outside based on user authority information given as identification information belonging to a recording medium included in the additional information detected by the additional information detecting means. 28. The information recording / reproducing apparatus according to claim 27, wherein the information recording means records the main information acquired by the adaptive processing means and additional information related to the main information on an information recording medium. 32. The information recording / reproducing apparatus according to claim 31, wherein the adaptive processing means performs a payment process when automatically obtaining the main information from the outside. 33. The information recording / reproducing apparatus according to claim 27, further comprising update processing means for acquiring new user authority information and writing it in the information recording medium. 34. The information recording / reproducing apparatus according to claim 33, wherein the update processing means performs a payment process when acquiring new main information from the outside.