JP2003317396A - Information recording medium, information recording method, information recording and reproducing method, information recording device, and information recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically obtain contents from the outside and record them in an information recording medium within user authority in a specific environment. <P>SOLUTION: An information reproduction section 16 reproduces additional information from a reproducing signal read from an information recording medium 15. Based on the user authority information included in the additional information, main information is automatically obtained from the outside and is recorded in the information recording medium 15 by an information recording section 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 including various contents such as music and video and additional information related to the main information is recorded, an information recording method therefor, an information recording / reproducing method, and information. The present invention relates to a recording device and an information recording / reproducing 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.

In view of the above-mentioned conventional problems, an object of the present invention is to provide an information recording medium and an information recording / recording medium capable of adaptively changing the recording / reproducing operation of main information in accordance with trigger information. It is to provide a reproducing method and an information recording / reproducing apparatus.

Another object of the present invention is an information recording medium capable of automatically acquiring and recording contents.
An object is to provide an information recording method, a recording / reproducing method, an information recording device, and a recording / reproducing device.

Further, another object of the present invention is to provide an information recording method, a recording / reproducing method, and an information recording method capable of automatically acquiring content from the outside within a user's authority and recording it on an information recording medium under a specific environment. It is to provide a recording device and an information recording / reproducing device.

[0011]

The present invention is an information recording medium in which main information and additional information related to the main information are recorded, and includes at least user authority information indicating an automatic acquisition authority of the main information, Trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded.

Further, the present invention is an information recording method for recording main information on an information recording medium in which at least user authority information indicating the automatic acquisition authority of the main information is previously recorded as additional information related to the main information. Then, based on the additional information detection step of detecting the additional information from the reproduction signal read from the information recording medium and the user authority information included in the additional information detected in the additional information detection step, main information is generated. It is characterized by comprising a main information acquisition step of automatically acquiring from the outside and an information recording step of recording the main information acquired in the main information acquisition step on an information recording medium.

Further, according to the present invention, main information and, as additional information related to the main information, at least user right information indicating an automatic acquisition right of the main information are included, and an operation of recording and / or reproducing the main information. An information recording / reproducing method for reproducing main information and additional information from an information recording medium on which trigger information for adaptively changing the main information is recorded, wherein the main information is detected from a reproduction signal read from the information recording medium. An information detecting step, an additional information detecting step of detecting the additional information from a reproduction signal read from the information recording medium, and a main information detected in the main information detecting step, detected in the additional information detecting step. An adaptive processing step of performing adaptive processing according to the user authority information of the added information,
The main information acquisition step for automatically acquiring main information from the outside based on the user authority information included in the additional information detected in the additional information detection step, and the main information acquired in the main information acquisition step An information recording step of recording additional information related to the main information on the information recording medium.

The present invention is also an information recording apparatus for recording main information on an information recording medium in which at least user authority information indicating the automatic acquisition authority of the main information is previously recorded as additional information related to the main information. Then, based on the additional information detection means for detecting the additional information from the reproduction signal read from the information recording medium and the user authority information included in the additional information detected by the additional information detection means, the main information is It is characterized by comprising main information acquisition means automatically acquired from the outside and information recording means for recording the main information acquired by the main information acquisition means on an information recording medium.

Further, according to the present invention, main information and, as additional information related to the main information, user authority information is included, and trigger information for adaptively changing the recording and / or reproducing operation of the main information is recorded. 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 the information recording medium. Depending on the additional information detecting means for detecting the additional information from the read reproduction signal and the main information detected by the main information detecting means, depending on the user authority information of the additional information detected by the additional information detecting means. Processing means for performing adaptive processing according to the above, and the user authority information included in the additional information detected by the additional information detecting means. Based on the main information acquisition means for automatically acquiring the main information from the outside, and the information recording means for recording the main information acquired by the main information acquisition means and the additional information related to the main information on the information recording medium. It is characterized by being provided.

[0016]

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 an external device 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 inputted 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, the details of each part 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.

Further, 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 encoded 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 processing unit 56.
Supply to.

For the determination of the amount of jitter, a table method for converting encoded data into the amount of jitter can be adopted.

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 section 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 section 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 way 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 in 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 specific configuration example of the information separating unit 61 is shown in the 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 a decoding process on the main information component separated from the reproduction data by the data analyzing unit 72 (step S13).

In the peak position detector 74, a jitter statistic is calculated by statistical processing for the jitter information component separated from the reproduced data by the data analyzer 72 (step S14), and the peak of the calculated 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 the identification information of the information recording medium 15, user authority 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, content quality information, and the like.

Then, in the information recording / reproducing apparatus 10,
Under the situation where the information indicating the external environment is input as the external trigger information, new main information is automatically acquired and recorded in the information recording medium 15 according to the procedure shown in the flowchart of FIG. 12, for example.

The external environment information includes geographical information / temporal information / existence / non-existence information of an external device capable of exchanging information.

In the flow chart of FIG. 12, the device 1 automatically records the content (information recording / reproducing apparatus 1).
0), the content of the process will be described with the device 2 as the content acquisition source.

In the flowchart of FIG. 12, in step S21, the device 1, that is, the information recording / reproducing apparatus 1 is used.
In the additional information decoding processing unit 76 of the 0 information reproducing unit 16, the user authority information (trigger information 1) is read from the information recording medium 15.

In the next step S22, the information recording / reproducing apparatus 10 acquires the external environment information (trigger information 2) from the external input / output unit 13.

In the next step S23, the information reproducing section 16
The adaptive processing unit 62 determines whether or not the content can be acquired based on the user authority information and the external environment information.

If it is determined in step S23 that the content cannot be acquired, the above step S2
Return to processing of 2.

If it is determined in step S23 that the content can be acquired, the next step S23
In 24, the information recording / reproducing apparatus 10 has an external input / output unit 7
Content providing device (device 2) through the communication unit 31 of 6
Establish a communication relationship with.

Then, in the next step S25, the device 2 outputs the content (main information) and its content identification information (trigger information 4).

Further, in the next step S26, the information recording / reproducing apparatus 10 acquires the content (main information) and its content identification information (trigger information 4) from the device 2, and uses the acquired main information and trigger information 4 as information. The information is recorded on the information recording medium 15 by the recording unit 14.

As described above, in the information recording / reproducing apparatus 10, the content is automatically acquired from the outside according to the user authority information and the external environment information recorded on the information recording medium 15, and the information recording medium 15 is recorded. Can be recorded in. Therefore, for example, by holding the information recording medium 15 and the information recording / reproducing device 10 and participating in the event, it is possible to obtain the content limited to the participants.

Further, in the information recording / reproducing apparatus 10, new main information is automatically acquired, for example, according to the procedure shown in the flowchart of FIG. 13 under the condition that the information indicating the external environment is input as the external trigger information. And records it on the information recording medium 15.

In the flow chart of FIG. 13, the device 1 automatically records the contents (information recording / reproducing apparatus 1).
0), the content of the process will be described with the device 2 as the content acquisition source.

In the flowchart of FIG. 13, in step S31, the device 1, that is, the information recording / reproducing apparatus 1 is used.
In the additional information decoding processing unit 76 of the 0 information reproducing unit 16, the user authority information (trigger information 1) and the identification information (trigger information 3) of all the recorded contents are read from the information recording medium 15.

In the next step S32, the information recording / reproducing apparatus 10 acquires the external environment information (trigger information 2) from the external input / output unit 13.

In the next step S33, the information reproducing section 16
In the adaptation processing unit 62, whether the content can be acquired based on the user authority information (trigger information 1), the external environment information (trigger information 2), and the identification information (trigger information 3) of all contents is determined. judge.

If it is determined in step S33 that the content cannot be acquired, the above step S3
Return to processing of 2.

If it is determined in step S33 that the content can be acquired, the next step S33
At 34, the information recording / reproducing apparatus 10 has an external input / output unit 7
Content providing device (device 2) through the communication unit 31 of 6
Establish a communication relationship with.

Then, in the next step S35, the device 2 outputs the content (main information) and its content identification information (trigger information 4).

Further, in the next step S36, the information recording / reproducing apparatus 10 acquires the content (main information) and its content identification information (trigger information 4) from the device 2, and acquires the acquired main information and trigger information 4 as information. The information is recorded on the information recording medium 15 by the recording unit 14.

As described above, in the information recording / reproducing apparatus 10, the content is automatically acquired from the outside according to the user authority information, the content identification information and the external environment information recorded on the information recording medium 15, and Information recording medium 15
Can be recorded in. Therefore, for example, by holding the information recording medium 15 and the information recording / reproducing device 10 and participating in the event, it is possible to obtain the content limited to the participants.

Furthermore, in this information recording / reproducing apparatus 10,
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. 14, in step S41, in the additional information decoding processing unit 76 of the information reproducing unit 16 of the information recording / reproducing apparatus 10, the user authority information (trigger information 1) is transmitted from the information recording medium 15.
Read out.

In the next step S 42, 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.

In the next step S43, the device of the update service provider performs the charging / clearing process based on the authority selected by the user in step S42 and the trigger information 1.

Then, in the next step S44, 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 S43. 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
It is possible to obtain the automatic content acquisition authority without purchasing the information recording medium 15 again.

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 composed of 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 disk, a magnetic disk, a magneto-optical disk, 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.

[0092]

As described above, according to the present invention,
An information recording medium, an information recording method, an information recording / reproducing method, an information recording apparatus, and an information recording / reproducing apparatus capable of automatically acquiring and recording content can be provided.

Further, according to the present invention, an information recording method, an information recording / reproducing method, and an information recording which can automatically acquire the content from the outside within the user's authority and record it on the information recording medium under a specific environment. A device and an information recording / reproducing device can be provided.

[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 an example of a processing procedure when new main information is automatically acquired and recorded on an information recording medium by the information recording / reproducing apparatus.

FIG. 13 is a flowchart showing another example of the processing procedure when new main information is automatically acquired and recorded on the information recording medium by the information recording / reproducing apparatus.

FIG. 14 is a flowchart showing a processing procedure for updating user authority information by the information recording / reproducing apparatus.

[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 20/10 301 G11B 20/10 301Z H04N 5/91 H04N 5/91 Z (72) Inventor Takashi Sawao 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo, Sony Corporation (72) Inventor Naoki Fujiwara 6-7-35, Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor, Shizuo Chikaoka Tokyo 6-35 Kita-Shinagawa, Shinagawa-ku, F-term (reference) within Sony Corporation 5C053 FA23 GB06 GB21 JA21 LA14 5D044 AB05 AB07 BC04 CC04 DE48 DE53 DE57 EF05 GK12 HL11 5D090 AA01 BB03 BB04 CC01 CC14 DD03 DD05 GG16 GG33

Claims (7)

[Claims] 1. An information recording medium for recording main information and additional information, comprising at least user authority information indicating an automatic acquisition authority of the main information, and recording and / or reproducing operation of the main information. An information recording medium, wherein trigger information for adaptively changing is recorded as the additional information. 2. An information recording method for recording main information on an information recording medium in which trigger information including at least user authority information indicating automatic acquisition authority of main information is recorded in advance as additional information. Main information is automatically acquired from the outside based on the additional information detection step of detecting the additional information from the reproduction signal read from the user information and the user authority information included in the additional information detected in the additional information detection step. An information recording method comprising: a main information acquisition step; and an information recording step of recording the main information acquired in the main information acquisition step on an information recording medium. 3. The main information acquisition step acquires main information and additional information related to the main information, and the main information and additional information acquired in the information recording step are recorded on an information recording medium. The information recording method described in 2. 4. Trigger information including main information and at least user authority information indicating an automatic acquisition authority of the main information, and trigger information for adaptively changing a 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. The additional information detecting step of detecting the additional information from the reproduced signal, and the main information detected in the main information detecting step, according to the user authority information of the additional information detected in the additional information detecting step. Included in the adaptive processing step for performing adaptive processing and the additional information detected in the additional information detecting step. The main information acquisition step of automatically acquiring the main information from the outside based on the user authority information, and the main information acquired in the main information acquisition step, and the additional information related to the main information is recorded on the information recording medium. An information recording / reproducing method comprising: an information recording step. 5. An information recording device for recording main information on an information recording medium in which at least user authority information indicating automatic acquisition authority of main information is recorded in advance as additional information, the reproduction being read from the information recording medium. Additional information detecting means for detecting the additional information from the signal, and main information acquiring means for automatically acquiring the main information from the outside based on the user authority information included in the additional information detected by the additional information detecting means. And an information recording unit for recording the main information acquired by the main information acquiring unit on an information recording medium. 6. The main information acquisition means acquires additional information related to the main information together with the main information, and the main information and additional information acquired by the main information acquisition means are recorded on the information recording medium by the information recording means. The information recording apparatus according to claim 5, wherein 7. The main information and the additional information from an information recording medium on which main information and trigger information including user authority information for adaptively changing the recording and / or reproducing operation of the main information are recorded as additional information. An information recording / reproducing apparatus for reproducing a main information, which detects main information from a reproduction signal read from the information recording medium, and detects the additional information from a reproduction signal read from the information recording medium. Additional information detecting means, and adaptive processing means for performing adaptive processing on the main information detected by the main information detecting means in accordance with the user authority information of the additional information detected by the additional information detecting means. Based on the user authority information included in the additional information detected by the additional information detecting means, the main information is automatically transmitted from the outside. A main information acquisition unit Tokusuru, the information recording and reproducing apparatus characterized by comprising an information recording means for recording on the information recording medium the additional information related to the main information and said main information acquired by the main information acquisition means.