JP2002369128A - Method and apparatus for recording and reproducing content - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform surely the control for the inhibition whereby a broadcast program is so recorded or reproduced as not to skip or fast forward its commercial portion. SOLUTION: When recording a received broadcast program on the recording medium in a recording and reproducing portion 47, a system controlling portion 48 senses a multiplexed commercial starting pre-notice-information by an additional-information sensing portion 43 at a predetermined time prior to the time, whereat the broadcast program is switched from its main portion into its commercial portion. Then, the system controlling portion 48 so controls the recording and reproducing portion 47 that it inhibits the stop or the temporary stop of the recording of the commercial portion. When reproducing the broadcast program, the system controlling portion 48 senses also the multiplexed commercial starting pre-notice-information at a predetermined time prior to the time, whereat the broadcast program is switched from its main portion into its commercial portion. Then, the system controlling portion 48 so controls the recording and reproducing portion 47 that it inhibits the stop or the temporary stop of the reproducing of the commercial portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a method and apparatus for recording or reproducing content such as a broadcast program in which a content portion such as a main program and a content portion such as a commercial are multiplexed.

[0002] In the present invention, the content part is
The term “content” refers to data including at least one of video data and audio data, and “content” refers to a series of data in which at least two types of content parts (a first content part and a second content part) are multiplexed.

[0003]

2. Description of the Related Art In television broadcasting, when a program material is selected and linked, a program is organized and broadcasted, in a recorded broadcast, a program title portion or a program title indicating the start of the program is previously recorded on a recording medium. The opening section, the commercial section, and the main program section are recorded in order according to a time schedule, and in live broadcasting, a method of manually inserting a commercial or the like in consideration of the progress of the program is used.

In this case, in order to control recording or reproduction of a program or a commercial on the receiving side, management data is multiplexed with video / audio data of the program or the commercial, and the program is broadcast.

When the broadcasted program is recorded and reproduced on the receiving side, a commercial portion is detected by analyzing video and audio data, and the program is recorded without recording the commercial portion, or To record a program with the commercial part marked so that the commercial part can be skipped during playback, or to detect the commercial part by analyzing video and audio data during playback and to play the program by skipping the commercial part Is considered.

When recording and reproducing a program multiplexed with management data and broadcasting as described above, the management data is detected and recording and reproduction are controlled.

[0007]

However, by detecting a commercial part as described above, and skipping the commercial part, recording or reproducing a program,
Since the viewer can view only the main part of the program, the advertisement effect of commercials broadcasted in the program is reduced, or new product information does not reach the viewer.

Further, a method of multiplexing management data with video or audio data of a program or commercial and controlling recording or reproduction of the program or commercial on the receiving side is also disclosed. , The control of recording or reproduction of a program or a commercial is delayed, and in some cases, the recording or reproduction cannot be controlled.

Accordingly, the present invention provides a method and apparatus for recording or reproducing content such as a broadcast program.
Controls to prevent recording or playback of content by skipping or fast-forwarding content parts such as commercials can be reliably performed, advertising effects of commercials are maintained, and product information desired by viewers is obtained It is made possible.

[0010]

A content recording method according to the present invention comprises a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, are multiplexed. In a content recording method for recording content,
Detecting information identifying the content, which is multiplexed and arranged at least at the beginning of the content, and detecting information identifying the first content portion, multiplexed and arranged on the first content portion; A predetermined time before the end time of one content part, the information multiplexed and arranged on the first content part is detected to detect the start of the second content part, and the start notice information of the second content part is detected. The recording of the content is controlled so as to prohibit stopping or temporarily stopping the recording from time to the end of the second content portion.

[0011] A content reproduction method according to the present invention reproduces a content composed of a series of data in which at least a first content portion and a second content portion each include at least one of video data and audio data. In the method, information for identifying the content, which is multiplexed and arranged at least at the beginning of the content, is detected, and information for identifying the first content part, which is multiplexed and arranged on the first content part, is detected. Then, a predetermined time before the end time of the first content part, the information multiplexed and arranged on the first content part is detected, and the information for notifying the start of the second content part is detected. Is stopped or paused from the time when the content is detected until the end of the second content part. Controlling the reproduction of the content so as to prohibit, characterized in that.

As described above, in the content recording method or the content reproduction method of the present invention, the start of the second content portion multiplexed and arranged on the first content portion a predetermined time before the end time of the first content portion. By detecting the advance notice information, it is possible to reliably perform control for prohibiting recording or reproduction of the content by skipping or fast-forwarding the second content portion.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Embodiment of Content Organizing Method and Apparatus ... FIGS. 1 to 5] (First Embodiment) FIG. 1 shows a first embodiment of a content organizing apparatus on the transmission side, and shows a content. In addition to organizing a broadcast program, additional information for content management is stored in MPEG (Moving Picture Expo).
This is a case where the image data is inserted into the user area of the picture layer of the video / audio data stream that has been compression-encoded by the rts Group method.

[0014] A program may include "other parts" such as a part for introducing another program in addition to the main part of the program and commercials. Part of the main program. The program title section and the program opening section are also part of the main program.

The recording device 11 records the video and audio data of the main program and the commercial video and audio data. Under the control of the system control unit 17, these video and audio data are reproduced from the recording device 11, 14
Sent to Relay device 12 and studio sending device 1
3, the video / audio data of the main part of the program is obtained under the control of the system control unit 17, and is sent to the selection unit 14.

The video / audio data in this case includes subtitle data and additional information data in addition to video data and audio data. The additional information data in this case is data such as character data.

The selection section 14 selects video and audio data from the recording apparatus 11, the relay apparatus 12, and the studio transmission apparatus 13 under the control of the system control section 17, and converts the data into video data, subtitle data, audio data, and additional information data. Separated and output.

The output video data, subtitle data, audio data, and additional information data are stored in a video code buffer 21, a subtitle code buffer 22, an audio code buffer 23, and an additional information code buffer 24, respectively.
After being read from the video code buffer 21, the subtitle code buffer 22, the audio code buffer 23, and the additional information code buffer 24, respectively, the video encoder 25, the subtitle encoder 26, the audio encoder 27, and the additional information encoder 28
Is encoded according to the MPEG method.

On the other hand, the system control unit 17 generates additional information for content management, which will be described later, according to the schedule management information from the schedule management unit 18 and the switching information from the operation input unit 19.

The additional information insertion multiplexing unit 31
The additional information for managing the content is inserted into the user area of the picture layer of the encoded video / audio data stream, and the encoded video data, subtitle data, audio data, and additional information data are multiplexed. .

The video / audio data stream from the additional information insertion multiplexing unit 31 is sent to the modulation processing unit 37 through the switching unit 33. In addition, if necessary, the video / audio data stream from the additional information insertion multiplexing unit 31 is written to the storage device 35, read from the storage device 35, and transmitted to the modulation processing unit 37 through the switching unit 33. You.

In the modulation processing section 37, an error correction code is added to the video / audio data, and the video / audio data stream is modulated. The modulated audio / video data stream is
After being written into the transmission buffer 38 and read from the buffer 38, the transmission device 39 transmits the broadcast program.

The additional information for content management, which is generated by the system control unit 17 and inserted into the user area of the picture layer of the video / audio data stream by the additional information insertion / multiplexing unit 31, is (1) related to the entire program. Are the program identification code as the content identification information, the information indicating the expiration date of the program, and the information for announcing the end of the program. (2) As for the main program, the information for announcing the start of the main program, the program The identification code of the main part, the information indicating the expiration date of the main part of the program, and the elapsed time data of the main part of the program. (3) As for the commercial, information for announcing the start of the commercial, the identification code of the commercial, and the management information of the commercial , And commercial elapsed time data.

The program identification code is multiplexed at least at the beginning of the program. Specifically, the program identification code is represented by a code system including a code specifying a program, a code indicating a copyright holder of the program, and a code indicating a classification of the program.

The term of validity of a program is a term by which the program can be reproduced and displayed. Program expiration date information,
Multiplex at least at the beginning of the program. However, when the term management of the program is not performed, the validity term information is not multiplexed, or information indicating that the term management is not performed is multiplexed.

The program end notice information is multiplexed a predetermined time before the program end time, for example, two to three seconds before.

Usually, the main program is divided into several parts in one program, and commercials are inserted between them. Therefore, the main program and commercials are divided into a plurality of locations and arranged in one program.

[0028] Therefore, the main program start notice information is provided a predetermined time before the time of switching from the commercial to the main program,
For example, one second before, it is multiplexed with the video and audio data of the commercial, and the commercial start notice information is multiplexed with the video and audio data of the main program a predetermined time before the time of switching from the main program to the commercial, for example, one second before.

When information indicating the start of a commercial is multiplexed at the beginning of the commercial part, recording or reproduction of the program by skipping or fast-forwarding the commercial part on the receiving side is prohibited under certain conditions. In such a case, it is difficult to reliably control the prohibition.
In addition, at the time of switching from the main program to commercials, 5
If the commercial start notice information is multiplexed at an earlier time, such as seconds before, the commercial start notice information should be multiplexed when it is desired to insert a commercial one second later in consideration of the progress of the program in live broadcasting. Can not be done.

Therefore, the commercial start notice information is:
It is desirable to multiplex the data about 0.5 to 1 second before the time of switching from the main program to the commercial. The same applies to the main program start notice information.

More specifically, the main program start notice information and commercial start notice information are expressed in a code system in which data indicating the time until the switch time is added to the video / audio data switch notice information. .

The data indicating the time until the switching time is:
This depends on the position of the multiplexed frame. For example, NTSC (Nati) with a frame frequency of 30 Hz
onal Television System Co
In the case of the (mmite) system, when multiplexing to a frame one second before the switching time is “minus 30 frames”, when multiplexing to a frame 0.5 seconds before the switching time is “minus 15 frames” Becomes

The identification code and expiration date information of the main program are multiplexed from the multiplexing of the main program start notice information to the video and audio data of the commercial and the main program after switching, and the identification code and management information of the commercial are also changed.
From the point of multiplexing of the commercial start notice information, the program is multiplexed into the main program and the switched commercial / video data.

The main program identification code and the commercial identification code are, specifically, a code for distinguishing the main program from the commercial, a code for specifying the divided main part or the commercial, a code indicating the copyright holder or sponsor, And a code system consisting of codes indicating the classification of programs or products. A code indicating the version is further added to the commercial identification code.

The term of validity of the main part of the program is a period during which the divided main part can be reproduced and displayed, and is generally the same as the validity period of the program. If you do not manage the time limit of the main part of the program separately from the time limit management of the program, or if you do not particularly manage the time limit of the main part, the information indicating that the expiration date information is not multiplexed or the time limit is not Multiplex.

The commercial management information indicates that the receiving side prohibits the recording or reproduction of the program by skipping or fast-forwarding the commercial part under certain conditions, and when the expiration date of the commercial expires,
This defines the management of the commercial, such as reproducing and displaying the latest commercial transmitted to the receiver by another route instead of the commercial.

More specifically, the commercial management information is represented by a code system including information indicating the number of times of removal or the removal date and time as the above-mentioned certain condition, and information indicating the expiration date of the commercial. The number of liftings is the number of times the commercial is reproduced and displayed before the program is recorded or reproduced by skipping or fast-forwarding the commercial, and the lifting date and time is defined by skipping or fast-forwarding the commercial. This is the date and time when recording or reproduction of the program is permitted. The number of liftings is set to, for example, once, and the lifting date and time is an appropriate date and time after the broadcast.

When such management is not performed for the commercial, management information is not multiplexed, or information indicating that the commercial is not managed is multiplexed.

A plurality of commercials may be inserted between main programs. In this case, individual identification codes and management information are multiplexed into individual commercials, or a common identification code and management information are multiplexed into a plurality of commercials.

The elapsed time data of the main program or commercial changes depending on the frame position where it is multiplexed. For example, in the case of the NTSC system, the video / audio data switching time (start time of the main program or commercial)
"1800 frames" when one minute has elapsed since the start of the operation, and "27000 frames" when 15 minutes have elapsed.
Becomes

In accordance with the schedule management information from the schedule management section 18 and the switching information from the operation input section 19, the system control section 17 changes the video / audio data switching time, that is, the switching time from the main program to the commercial or from the commercial to the program. A predetermined time before the switching time to the main part, for example, one second before, the start notice information of the next commercial or main part of the program and the identification code and management information or expiration date information of the next commercial or main part of the main part of the current main part of the program Alternatively, it instructs the additional information insertion and multiplexing unit 31 to multiplex to the commercial video and audio data, and instructs the selection unit 14 to switch and select the video and audio data at the subsequent video and audio data switching time. .

Further, the system control unit 17 changes the identification code and management information or expiration date information of the commercial or program after switching according to the schedule management information from the schedule management unit 18 and the switching information from the operation input unit 19. , So that it is multiplexed with the switched commercial or video / audio data of the main program,
It instructs the additional information insertion multiplexing unit 31.

Accordingly, if the video / audio data of the main program is the first video / audio data and the commercial video / audio data is the second video / audio data, the additional information for content management is that the video / audio data is the first video / audio data. After switching from the second video / audio data to the second video / audio data, it is described in a code system in which the commercial elapsed time data is added to the commercial identification code and management information, and the video / audio data is converted from the second video / audio data to the first video / audio data. After switching to the audio data, the data is expressed in a code system in which the elapsed time data of the main program is added to the identification code and the expiration date information of the main program.

FIG. 3 shows an example of a program scheduling processing routine executed by the system controller 17 of the content organizing device 10. As shown in FIG. 4, the main part of the program (program title part and program opening part) is arranged at the beginning of the program, followed by the commercials and the main part of the program alternately arranged at the end of the program. Is arranged. Hereinafter, the main part of the program is abbreviated as “main part” and the commercial is abbreviated as “CM”.

In the program scheduling processing routine of FIG. 3, first, in step S1, first video / audio data which is video / audio data of a main program is selected, and in step S2, the first video / audio data is added to the first video / audio data. The identification code and expiration date information and the elapsed time data of the main part are multiplexed.

Next, a predetermined time before the switching time to the next CM, for example, 2 to 3 seconds before, in step S3, the switching time is indicated to the selecting unit 14 to notify the switching of the video and audio data, and Next, at a predetermined time before the switching time, for example, one second before, in step S4, the start notice information, the identification code, and the management information of the next CM are multiplexed on the first video / audio data.

Next, at the switching time, in step S5, the second video / audio data which is the video / audio data of the next CM is selected. Next, in step S6, the second video / audio data is added to the second video / audio data. The identification code, management information and elapsed time data are multiplexed.

Next, at a predetermined time before the switching time to the next main program, for example, two to three seconds before, in step S7, the switching time is indicated to the selecting unit 14 and the switching of the video and audio data is notified in advance. Next, a predetermined time before the switching time, for example, one second before, the start notice information, identification code, and expiration date information of the next main part are multiplexed to the second video / audio data in step S8.

Next, at the switching time, in step S9, the first video / audio data which is the video / audio data of the next main program is selected, and then in step S10, the first video / audio data is added to the first video / audio data. The identification code, expiration date information and elapsed time data are multiplexed.

Next, before a predetermined time, for example, 2 to 3 seconds before the switching time to the next CM, in step S11,
The switching time is indicated to the selecting unit 14 to notify the switching of the video / audio data, and then a predetermined time before the switching time, for example, one second before, the next video / audio data is added to the first video / audio data in step S12. It multiplexes CM start notice information, identification code, and management information.

Next, at the switching time, in step S13, the second video / audio data which is the video / audio data of the next CM is selected, and then in step S14, the second video / audio data is selected.
The identification code of the CM, management information, and elapsed time data are multiplexed on the video / audio data.

Next, at a predetermined time before the end time of the program, for example, two to three seconds before, at step S15, the identification code, management information and elapsed time data of the CM, Multiplexes the notice information.

FIG. 4 shows the time structure of a video / audio data stream formed as a series of programs as a result of the above-described program organization processing. As shown in the figure, CM start notice information is multiplexed a predetermined time before the switching time from the first video / audio data to the second video / audio data, and from a predetermined time before,
The identification code and management information of the next CM are multiplexed, and the main part start notice information is multiplexed a predetermined time before the switching time from the second video / audio data to the first video / audio data, and The identification code and expiration date information of the next main part are multiplexed.

FIGS. 3 and 4 show a case where a main program and CMs are arranged at two locations in one program. In many cases, more main programs and CMs are included in one program. Be placed.

FIGS. 3 and 4 show a case where the last part of the program is a CM and the program end notice information is multiplexed on the second video / audio data which is the video / audio data of the CM.
When the last part of the program is the main part, the program end notice information is multiplexed on the first video and audio data which is the video and audio data of the main part.

In the above example, the program identification code and the program expiration date information are multiplexed at the beginning of the program. As shown in FIG. 5, the program identification code extends from the beginning to the end of the program. And program expiration date information may be multiplexed. In this case, the main part identification code and the main part expiration date information can be multiplexed on the main part at the beginning of the program, similarly to the main part of the other parts.

(Second Embodiment) FIG. 2 shows a second embodiment of a content organizing apparatus on the transmitting side. As in the first embodiment shown in FIG. 1, a broadcast program is organized as content. Different from the first embodiment, this is a case where additional information for content management is inserted into video / audio data as digital watermark information (watermark code).

That is, in this embodiment, the additional information for content management generated by the system control unit 17 is transmitted by the additional information insertion unit 15 to the video data, subtitle data, audio data, It is inserted into the additional information data as digital watermark information.

The video data, subtitle data, audio data and additional information data after the digital watermark information is inserted are stored in the video code buffer 21 and the subtitle code buffer 2 respectively.
2, written in the audio code buffer 23 and the additional information code buffer 24,
1. After being read from the subtitle code buffer 22, the audio code buffer 23, and the additional information code buffer 24, the video is encoded by the video encoder 25, the subtitle encoder 26, the audio encoder 27, and the additional information encoder 28 according to the MPEG method. Multiplexed by the multiplexing unit 32. Others are the same as the embodiment of FIG.

[Embodiment of Reception Recording / Reproduction Method and Apparatus: FIGS. 6 to 10] (Reception Recording Method and Reception Recording System: FIGS. 6 and 7) FIG. 6 is organized by the above-described content organization apparatus 10 and transmitted. 1 shows a first embodiment of a receiving and recording system of a receiving and recording apparatus of the present invention which receives a broadcast signal recorded on a recording medium, and reproduces the broadcast signal from the recording medium.

The broadcast signal is tuned and received by the tuning receiving unit 41, demodulated by the demodulation error correcting unit 42, error-corrected, and converted into a series of bit streams. The bit stream is added with an error correction code by a recording modulation processing unit 46 through an additional information detection unit 43 and an additional information processing unit 44, is modulated for recording, and is transmitted to a recording / reproducing unit 47 including a recording medium. It is recorded on a recording medium as described later.

The user sets a recording reservation using the operation input unit 49, or instructs recording of a program being received. The recording reservation setting information is written into the non-volatile memory 51 by the system control unit 48.

The additional information detecting section 43 detects the above-mentioned additional information for content management from the bit stream output from the demodulation error correcting section 42 and takes it into the system control section 48.

When the program to be recorded is designated by the program identification code and the recording reservation is set, the system control unit 48 detects the program identification code in the recording reservation setting information and the additional information detection unit 43 Then, when the two match, the designated program is broadcasted and the recording / reproducing unit 47 is instructed to start recording. When the program identification code in the recording reservation setting information is different from the program identification code detected by the additional information detection unit 43, the system control unit 48
7 is instructed to wait.

When the program to be recorded is specified by the broadcast time and the recording reservation is set, the system control unit 48 compares the reservation time with the current time indicated by the clock provided in the system control unit 48. , When they match,
The recording / reproducing unit 47 is instructed to start recording.

[0066] Instead of recording reservation,
When recording is instructed by the operation input unit 49, the system control unit 48 immediately instructs the recording and reproducing unit 47 to start recording.

On the other hand, the bit stream output from the demodulation error correction unit 42 passes through the content management processing unit 57 and
The data is transmitted to the external device 59 through the digital input / output interface 58.

As the digital input / output interface 58, for example, IEEE (Institute of E)
electrical and Electronics
Engineers) 1394 interface is used.

When recording the program, the system control unit 48 checks the program identification code of the recorded program detected by the additional information detection unit 43, and the content management processing unit 57
It is checked whether or not the program being recorded is displayed on the screen of the display device connected as the external device 59 via the digital input / output interface 58.

A digital input / output interface 58 such as an IEEE 1394 interface has a status for checking the operation state of an external device 59 connected thereto.
There is a command, and by this status command,
Whether the display device connected as the external device 59 is turned on, whether the input selection is broadcast reception, whether the channel displayed on the screen is the same as the recording channel, etc. Can be checked.

If the commercial management information multiplexed in the bit stream of the recorded program includes the above-mentioned information indicating the number of bans and the number of bans is one, the system control unit 48 As a result of the check by 57, when it is determined that the same program is displayed on the screen of the display device connected as the external device 59, it can be determined that the user is recording and watching the program at the same time. Assuming that the commercial of the program is transmitted to the user, the additional information processing unit 44 deletes the information indicating the number of times of removal of the ban in the commercial management information multiplexed in the bit stream of the program.

Further, in this embodiment, the external storage device 5 such as an IC card connected to the system control unit 48 is used.
2 or an internal storage device such as a flash memory in the system control unit 48, a receiving terminal identification code for specifying the reception / recording / reproducing device 40 or a user identification code for specifying a user is written. 4
8, from the external storage device 52 or the internal storage device,
The receiving terminal identification code or the user identification code is read out, and the additional information processing section 44 multiplexes the information into the bit stream of the program as additional information for content management.

On the other hand, the latest commercial video / audio data to be reproduced in place of the expired commercial in the broadcasted program is sent from the commercial management center or the server device of the sponsor to the external network 55 such as the Internet. Is distributed to the receiving / recording / reproducing apparatus 40 via the network interface 54 and received by the system control unit 48.

A commercial identification code and commercial expiration date information are multiplexed on the distributed commercial video and audio data. The commercial identification code is
Specifically, it is represented by a code system including a code specifying the commercial, a code indicating its version, a code indicating a sponsor, and a code indicating a product classification. The commercial expiration date information is information indicating the expiration date of the commercial.

The user inputs in advance a code indicating the classification of a product for which product information is desired to be obtained by operating the operation input unit 49. The system control unit 48 registers the input product classification code in the nonvolatile memory 51.

Further, the system control unit 48 stores the product classification code in the commercial identification code multiplexed into the commercial video / audio data received via the network interface 54 and the product registered in the nonvolatile memory 51. When the two are compared with each other and the two match, the commercial video and audio data received via the network interface
Is recorded in a replacement commercial recording area different from the program recording area on the recording medium in the inside.

At the same time, the system control unit 48 records the commercial identification code and expiration date information recorded in the replacement commercial recording area in the nonvolatile memory 51 as commercial replacement management data.

FIG. 7 shows a second embodiment of the receiving and recording system of the receiving and recording apparatus of the present invention.

In this embodiment, a recording data encryption processing unit 45 is provided between the additional information processing unit 44 and the recording modulation processing unit 46.
The recording data encryption processing unit 45 encrypts the bit stream of the program using the reception terminal identification code or the user identification code read from the internal storage device 2 or the internal storage device. Others are the same as the embodiment of FIG.

(Reproducing Method and Reproducing System: FIGS. 8 and 9) FIG. 8 shows a first embodiment of the reproducing system of the receiving / recording / reproducing apparatus of the present invention. This is an example corresponding to a case where additional information for content management is inserted into a user area of a picture layer of an encoded video / audio data stream as in the embodiment.

The user designates a program to be reproduced on the operation input unit 49, and the system control unit 48 searches a recording medium in the recording / reproducing unit 47 for a position where the designated program is recorded, and records the program. The reproduction unit 47 is instructed to reproduce the video and audio data.

The reproduced signal from the recording / reproducing section 47 is demodulated by the demodulation error correction section 61 and error-corrected. At the time of recording, when the recording data is encrypted by the receiving terminal identification code or the user identification code as in the embodiment of FIG. 7, at the time of reproduction, the demodulation error correction unit 61 outputs the data from the external storage device 52 or the internal storage device. The reproduced data is decrypted by the read receiving terminal identification code or user identification code.

The bit stream output from the demodulation error correction unit 61 is sent to the demultiplexer 63 through the additional information detection unit 62, and is separated into video data, subtitle data, audio data, and additional information data.

The separated video data, subtitle data, audio data, and additional information data are respectively stored in a video code buffer 71, a subtitle code buffer 72, an audio code buffer 73, and an additional information code buffer 74.
After being read from the video code buffer 71, the subtitle code buffer 72, the audio code buffer 73, and the additional information code buffer 74, the video decoder 75, the subtitle decoder 76, the audio decoder 77, and the additional information decoder 78 respectively respectively. Decrypted.

Further, the decoded video data, subtitle data, and audio data from the video decoder 75, the subtitle decoder 76, and the audio decoder 77 are sent to the video / audio output processing section 81, and from the additional information decoder 78. After the decoded additional information data is subjected to display processing by the additional information display processing section 79, it is transmitted to the video / audio output processing section 81, and the video / audio output processing section 81 performs processing for video display and audio output. Done.

The additional information detection unit 62 uses the bit stream output from the demodulation error correction unit 61 to manage the content inserted into the user area of the picture layer of the video / audio data stream encoded by the content organization device on the transmission side. In the case where the receiving terminal identification code or the user identification code is multiplexed into the bit stream of the recorded program by the additional information processing unit 44 during recording as in the embodiment of FIG. The receiving terminal identification code or the user identification code is detected and taken into the system control unit 48.

The system control unit 48 compares the detected receiving terminal identification code or user identification code with the receiving terminal identification code or user identification code read out from the external storage device 52 or the internal storage device, and the two match. Then, the reproduction is continued, and if they do not match, the reproduction is stopped.

Further, when the reproduction is continued, when the additional information detection unit 62 detects the commercial advance notice information, the identification code and the management information, the system control unit 48 displays the ban indicated in the management information. It is determined whether or not the number of times or the ban date and time has passed, and if not, the commercial portion is prohibited from being skipped or fast-forwarded to reproduce the program.

For example, when the commercial management information includes information indicating the number of times of removal of the ban, the system control unit 48 sets the nonvolatile memory 51 or an area other than the video / audio data recording area on the recording medium in the recording / reproducing unit 47. , For example, TOC
(Table Of Contents) section and the commercial reproduction management data recorded in the user area of the picture layer of the video / audio data stream, it is determined whether or not the commercial is reproduced and displayed, and whether or not the commercial is reproduced and displayed. When the playback is not displayed, the program is prohibited from being skipped or fast-forwarded to play the program. Allow to do.

When the commercial management information includes information indicating the removal date and time, the system control unit 48 determines whether or not the removal date and time has passed from the current date and time indicated by the clock provided therein. , If not,
The reproduction of the program by skipping or fast-forwarding the commercial part is prohibited. When the commercial part has passed, the reproduction of the program by skipping or fast-forwarding the commercial part is permitted.

Further, when the expiration date of the commercial indicated in the commercial management information has passed, the system control unit 48 reads the commercial replacement management data recorded in the nonvolatile memory 51 from the recording / reproducing unit 47. It is determined whether or not the video and audio data of the latest commercial to be replaced and reproduced in a commercial recording area different from the program recording area on the recording medium is replaced with a commercial whose expiration date has passed. Then, when recorded, the latest commercial is reproduced instead of the commercial whose expiration date has passed.

As described above, the commercial replacement management data includes the commercial identification code (commercial identification code, version code, sponsor code, and product classification code) recorded in the replacement commercial recording area and expiration date information.

When the commercial is replaced and reproduced, the system control unit 48 determines that even if the commercial has the same commercial specific code, the commercial of the same version is not reproduced and the latest version of the commercial within the expiration date is reproduced. Next, a commercial recorded in the replacement commercial recording area is selected.

Further, when the commercial is replaced and reproduced as described above, the system control unit 48 sets the identification code and the expiration date information of the replaced and reproduced commercial, the receiving terminal read from the external storage device 52 or the internal storage device. The identification code or the user identification code, and the replacement playback date and time are stored as commercial replacement playback management data in, for example, the external storage device 52, and are transmitted from the network interface 54 via the external network 55 at a predetermined timing such as the end of the month. To the server device of the commercial management center.

The server device of the commercial management center receives the commercial replacement / reproduction management data, manages the commercials replaced with the broadcasted commercials, and plays back the commercials.
0) or management of users, management of advertising fees, management of privileges given to users (viewers), and the like.

As described above, the nonvolatile memory 5
1 or from the commercial reproduction management data recorded in an area other than the video / audio data recording area on the recording medium in the recording / reproducing section 47, the commercial is reproduced and displayed at least as many times as the ban number indicated in the commercial management information. The system control unit 48 updates the commercial reproduction management data every time the commercial is reproduced and displayed.

FIG. 9 shows a second embodiment of the reproducing system of the receiving / recording / reproducing apparatus of the present invention. In the content organizing apparatus on the transmitting side, as in the embodiment of FIG. Is inserted into the video / audio data as electronic watermark information.

In this embodiment, the additional information detection unit 62 converts the bit stream output from the demodulation error correction unit 61 into the additional information processing unit 4 during recording as in the embodiment of FIG.
4 when the receiving terminal identification code or the user identification code is multiplexed in the bit stream of the recorded program
The multiplexed receiving terminal identification code or user identification code is detected and taken into system control unit 48.

The decoded video data, subtitle data, and audio data from the video decoder 75, the subtitle decoder 76, and the audio decoder 77 are sent to the video / audio output processing unit 81 through another additional information detection unit 64. The additional information detecting unit 64 detects, from the decoded video data, caption data, and audio data, additional information for content management inserted into the video and audio data as digital watermark information by the content organization device on the transmission side. Are taken into the system control unit 48. Others are the same as the embodiment of FIG.

(Output Control Through Digital Input / Output Interface During Reproduction: FIG. 10) In the reproduction system of the embodiment shown in FIG. 8 or FIG. 9, the bit stream output from the demodulation error correction section 61 is used for content management processing. The recording / reproducing device is connected to the recording / reproducing device as the external device 59, and the reproduced signal from the recording / reproducing device 47 of the receiving / recording / reproducing device 40 is transmitted to the external device 59. Can be recorded on another recording medium.

As the digital input / output interface 58, for example, an IEEE 1394 interface is used. The digital input / output interface 58 such as the IEEE 1394 interface allows the user to know the type and operation status of the external device 59 connected thereto.

When recording the reproduction signal from the recording / reproducing unit 47 on another recording medium by the recording / reproducing apparatus as the external device 59, the system control unit 48 executes an output control processing routine as shown in FIG. Limit skipping or fast-forwarding commercials to make duplicates.

That is, in the output control processing routine shown in FIG. 10, the system control unit 48 firstly proceeds to step S41.
The content management processing unit 57 determines whether or not the power of the device connected as the external device 59 is turned on via the digital input / output interface 58. If the power is turned on, the process proceeds to step S42. Then, it is determined whether or not the connected device is a recording / reproducing device.

If the connected device is a recording / reproducing device, the process proceeds from step S42 to step S43.
To monitor the operation state of the connected recording / playback apparatus, and when the commercial start notice information is detected by the additional information detection unit 62 in FIG. 8 or the additional information detection unit 64 in FIG. 9, and When the commercial part is reproduced, it is determined whether or not the connected recording / reproducing apparatus is in the stop state or the recording pause state.

Then, when the commercial start notice information is detected, when the subsequent commercial part is being reproduced, and when the connected recording / reproducing apparatus is in the stop state or the recording pause state, step S43 is executed. The process proceeds from step S44 to step S44, where the reproduction by the reception / recording / reproduction device 40 is stopped or paused, depending on whether the connected recording / reproduction device is in the stop state or the recording pause state.

This prevents the recording / reproducing apparatus as the external device 59 from skipping or fast-forwarding the commercial portion and recording the reproduced signal from the recording / reproducing section 47.

In step S41, when it is determined that the power of the device connected as the external device 59 is turned off, or in step S42, it is determined that the device connected as the external device 59 is not a recording / reproducing device. In this case, since the commercial portion is skipped or fast-forwarded and the reproduction signal from the recording / reproducing unit 47 is not recorded by the external device 59, the process proceeds to step S45 to permit or continue reproduction by the receiving / recording / reproducing device 40. I do. However, the control by the commercial management information is executed for the reproduction itself in the reception recording / reproduction device 40 as described above.

When the commercial start notice information is detected in step S43, and when the subsequent commercial portion is being reproduced, the recording / reproducing apparatus connected as the external device 59 is not in the stopped state, and the recording is not performed. When it is determined that the external device 5 is not in the pause state,
In the recording / reproducing device No. 9, the commercial portion of the reproduced signal is normally recorded without being skipped or fast-forwarded. Therefore, the process proceeds to step S45 to permit or continue the reproduction by the receiving / recording / reproducing device 40. Also in this case, the control by the commercial management information is executed as described above for the reproduction itself by the reception recording / reproduction device 40.

[0109]

As described above, according to the present invention, control for prohibiting recording or reproduction of a content by skipping or fast-forwarding a content portion such as a commercial can be reliably performed. Therefore, the advertisement effect of the commercial is maintained, and the viewer can obtain desired product information.

In the case where the content part whose expiration date has passed is replaced with a content part received through a different route from that of the entire content and reproduced, the control for the replacement reproduction can be reliably performed, and the viewer can be surely controlled. Can get the latest product information with the latest commercials.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of a content organizing device.

FIG. 2 is a diagram showing a second embodiment of the content organizing device.

FIG. 3 is a diagram showing an example of a program scheduling processing routine executed by a system control unit of the content organizing device.

FIG. 4 is a diagram showing an example of a time structure of a video / audio data stream organized as a series of programs.

FIG. 5 is a diagram showing another example of a time structure of a video / audio data stream organized as a series of programs.

FIG. 6 is a diagram showing a first embodiment of a reception recording system of the reception recording / reproduction device of the present invention.

FIG. 7 is a diagram showing a second embodiment of the reception recording system of the reception recording / reproducing apparatus of the present invention.

FIG. 8 is a diagram showing a first embodiment of a reproducing system of the receiving / recording / reproducing apparatus of the present invention.

FIG. 9 is a diagram showing a second embodiment of the reproduction system of the reception / recording / reproduction device of the present invention.

FIG. 10 is a diagram illustrating an example of an output control processing routine through a digital input / output interface during reproduction.

[Explanation of Signs] Since the main parts are all described in the figure, they are omitted here.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04H 1/00 H04H 1/00 F H04N 17/00 Z H04N 17/00 5/91 ZF term (reference) 5C053 FA20 GB06 GB37 HA21 JA01 JA15 JA16 JA21 LA07 5C061 BB20 5D044 AB05 AB07 DE14 DE47 DE49 EF05 FG18 GK08 GK12 GK17 5D110 AA27 AA29 DA04 DA17 DC05 DC16 DE01

Claims (20)

[Claims] 1. A content recording method for recording a content comprising a series of data in which at least a first content portion and a second content portion, each including at least one of video data and audio data, is recorded. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; A predetermined time before the end time of the second content part, the information multiplexed and arranged in the first content part is detected, and the information for notifying the start of the second content part is detected. The content may be stopped or paused until the end of the second content part. A content recording method, which controls recording. 2. A content reproducing method for reproducing a content composed of a series of data in which at least a first content portion and a second content portion each including at least one of video data and audio data are multiplexed. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; A predetermined time before the end time of the second content part, the information multiplexed and arranged in the first content part is detected, and the information for notifying the start of the second content part is detected. The content may be stopped or paused until the end of the second content portion. A content reproduction method, comprising: controlling reproduction. 3. A content recording method for recording a content comprising a series of data in which at least a first content portion and a second content portion, each including at least one of video data and audio data, is recorded. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which notifies the start of the second content part, which is multiplexed and arranged on the first content part a predetermined time before the end time of the first content part, is detected. In the second content portion, which is multiplexed and arranged in one content portion and the second content portion, The management information about the management information is detected, and it is determined whether or not the number of removals or the removal date and time indicated in the management information has passed.
A content recording method, comprising: controlling recording of content so as to prohibit stopping or pausing recording from when the second content part start notice information is detected until the end of the second content part. 4. A content reproducing method for reproducing a content consisting of a series of data, each including at least one of video data and audio data and multiplexed with at least a first content portion and a second content portion, comprising: Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which is multiplexed and arranged in the first content part before the end time of the first content part and which detects the start of the second content part is detected. In the second content portion, which is multiplexed and arranged on one content portion and the second content portion, The management information about the management information is detected, and it is determined whether or not the number of removals or the removal date and time indicated in the management information has passed.
A content playback method, comprising: controlling playback of content so as to prohibit stopping or pausing playback from when the second content part start notice information is detected until the end of the second content part. 5. A content recording method for recording a content comprising a series of data in which at least a first content portion and a second content portion, each including at least one of video data and audio data, is recorded. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which is multiplexed and arranged in the first content part before the end time of the first content part and which detects the start of the second content part is detected. The second content part multiplexed and arranged on one content part and the second content part Identifying information is detected, and it is determined from the second content portion identification information whether or not the second content portion is a commercial. If the second content portion is a commercial, the second content portion is notified from the time when the second content portion start notice information is detected. Controlling the recording of the content so as to prohibit stopping or suspending the recording until the end of the second content portion. 6. A content reproducing method for reproducing a content consisting of a series of data, each of which includes at least one of video data and audio data, and at least a first content portion and a second content portion are multiplexed. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which is multiplexed and arranged in the first content part before the end time of the first content part and which detects the start of the second content part is detected. The second content portion multiplexed and arranged on one content portion and the second content portion Identifying information is detected, and it is determined from the second content portion identification information whether or not the second content portion is a commercial. If the second content portion is a commercial, the second content portion is notified from the time when the second content portion start notice information is detected. A content reproduction method, comprising: controlling reproduction of a content so as to prohibit stopping or pausing the reproduction until the end of the second content portion. 7. A content recording method for recording a content comprising a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is recorded. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which is multiplexed and arranged in the first content part before the end time of the first content part and which detects the start of the second content part is detected. The second content portion multiplexed and arranged on one content portion and the second content portion Identifying information and management information about the second content portion are detected, and whether or not the second content portion is commercial is determined based on the second content portion identification information, and is indicated in the management information. It is determined whether or not the number of bans or the ban date and time has passed, and if the second content portion is a commercial and the ban number or the ban date and time has not passed, the second content portion start notice information is detected. Controlling the recording of the content so as to prohibit stopping or pausing the recording until the end of the second content portion. 8. A content reproducing method for reproducing a content composed of a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is reproduced. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which is multiplexed and arranged in the first content part before the end time of the first content part and which detects the start of the second content part is detected. The second content portion multiplexed and arranged on one content portion and the second content portion Identifying information and management information about the second content portion are detected, and whether or not the second content portion is commercial is determined based on the second content portion identification information, and is indicated in the management information. It is determined whether or not the number of bans or the ban date and time has passed, and if the second content portion is a commercial and the ban number or the ban date and time has not passed, the second content portion start notice information is detected. And controlling the reproduction of the content so as to prohibit stopping or pausing the reproduction until the end of the second content portion. 9. A content recording apparatus for recording a content comprising a series of data in which at least a first content part and a second content part, each containing at least one of video data and audio data, is recorded. Means for detecting information for identifying the content, which is multiplexed and arranged at the head; means for detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; Means for detecting information for announcing the start of the second content portion, which is multiplexed and arranged on the first content portion a predetermined time before the end time of the first content portion, and a content recording device or a user thereof. An encryption means for encrypting the content by the information to be identified, and the encrypted content; Recording means for recording on a recording medium, controlling the recording means so as to prohibit stopping or pausing the recording from the time when the second content part start notice information is detected until the end of the second content part. A content recording device, comprising: 10. A content reproducing apparatus for reproducing a content consisting of a series of data in which at least a first content portion and a second content portion each including at least one of video data and audio data are multiplexed. Or a reproducing means for reproducing from the recording medium the content encrypted by the information for identifying the user and recorded on the recording medium; a decoding means for decoding the reproduced content; and a multiplex at least at the beginning of the content. Means for detecting information for identifying the content arranged and arranged; means for detecting information for identifying the first content part multiplexed and arranged on the first content part; Is multiplexed with the first content part a predetermined time before the end time of Means for detecting information for announcing the start of the second content portion, and stopping or pausing the reproduction from the time when the second content portion advance notice information is detected until the end of the second content portion. Control means for controlling the reproduction means so as to prohibit the content reproduction. 11. A content recording apparatus for recording a content comprising a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is recorded. Means for detecting information for identifying the content, which is multiplexed and arranged at the head; means for detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; Means for detecting information for announcing the start of the second content part, multiplexed and arranged on the first content part a predetermined time before the end time of the first content part, and It is multiplexed and arranged on the first content part and the second content part from a predetermined time ago Means for detecting management information on the second content part, encryption means for encrypting the content with information for identifying the content recording device or its user, and recording the encrypted content on a recording medium. Recording means, determine whether or not the ban number or ban date and time indicated in the management information has passed, if not,
Control means for controlling the recording means so as to prohibit stopping or pausing the recording from the time when the second content part start notice information is detected until the end of the second content part. Content recording device. 12. A content reproducing apparatus for reproducing a content composed of a series of data in which at least a first content portion and a second content portion each including at least one of video data and audio data are multiplexed. Or a reproducing means for reproducing from the recording medium the content encrypted by the information for identifying the user and recorded on the recording medium; a decoding means for decoding the reproduced content; and a multiplex at least at the beginning of the content. Means for detecting information for identifying the content arranged and arranged; means for detecting information for identifying the first content part multiplexed and arranged on the first content part; Is multiplexed with the first content part a predetermined time before the end time of Means for detecting information for announcing the start of the second content part, and a means multiplexed and arranged on the first content part and the second content part from a predetermined time before the end time of the first content part. Means for detecting management information on the second content portion, and determining whether or not the number of removals or the removal date and time indicated in the management information has passed.
Control means for controlling the playback means so as to prohibit stopping or pausing playback from the time when the second content part start notice information is detected until the end of the second content part. Content playback device. 13. A content recording apparatus for recording a content consisting of a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is recorded. Means for detecting information for identifying the content, which is multiplexed and arranged at the head; means for detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; Means for detecting information for announcing the start of the second content part, multiplexed and arranged on the first content part a predetermined time before the end time of the first content part, and It is multiplexed and arranged on the first content part and the second content part from a predetermined time ago Means for detecting information for identifying the second content part, encryption means for encrypting the content with information for identifying the content recording device or its user, and recording the encrypted content on a recording medium. Recording means for determining whether or not the second content part is a commercial based on the second content part identification information. If the second content part is a commercial, the second content part start notice information is detected when the second content part is detected. 2. A content recording apparatus, comprising: control means for controlling the recording means so as to prohibit stopping or temporarily stopping recording until the end of two content portions. 14. A content reproducing apparatus for reproducing a content composed of a series of data in which at least a first content portion and a second content portion each including at least one of video data and audio data are multiplexed. Or a reproducing means for reproducing from the recording medium the content encrypted by the information for identifying the user and recorded on the recording medium; a decoding means for decoding the reproduced content; and a multiplex at least at the beginning of the content. Means for detecting information for identifying the content arranged and arranged; means for detecting information for identifying the first content part multiplexed and arranged on the first content part; Is multiplexed with the first content part a predetermined time before the end time of Means for detecting information for announcing the start of the second content part, and a means multiplexed and arranged on the first content part and the second content part from a predetermined time before the end time of the first content part. Means for detecting information for identifying the second content portion; and determining whether or not the second content portion is commercial based on the second content portion identification information. Control means for controlling the reproduction means so as to prohibit stopping or pausing the reproduction from the time when the partial start notice information is detected to the end of the second content part. apparatus. 15. A content recording apparatus for recording a content comprising a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is recorded. Means for detecting information for identifying the content, which is multiplexed and arranged at the head; means for detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; Means for detecting information for announcing the start of the second content part, multiplexed and arranged on the first content part a predetermined time before the end time of the first content part, and It is multiplexed and arranged on the first content part and the second content part from a predetermined time ago Means for detecting information for identifying the second content part and management information for the second content part; encryption means for encrypting the content with information for identifying the content recording device or its user; Recording means for recording the converted content on a recording medium; determining whether or not the second content part is commercial from the second content part identification information; It is determined whether or not the ban date and time has passed. If the second content part is a commercial and the ban count or the ban date and time has not passed, the second content part start notice information is detected from the time when the second content part start notice information is detected. The above description is made to prohibit stopping or pausing the recording until the end of the second content portion. Content recording apparatus characterized by comprising a control means for controlling the means. 16. A content reproducing apparatus for reproducing a content comprising a series of data in which at least a first content portion and a second content portion each including at least one of video data and audio data are multiplexed. Or a reproducing means for reproducing from the recording medium the content encrypted by the information for identifying the user and recorded on the recording medium; a decoding means for decoding the reproduced content; and a multiplex at least at the beginning of the content. Means for detecting information for identifying the content arranged and arranged; means for detecting information for identifying the first content part multiplexed and arranged on the first content part; Is multiplexed with the first content part a predetermined time before the end time of Means for detecting information for announcing the start of the second content part, and a means multiplexed and arranged on the first content part and the second content part from a predetermined time before the end time of the first content part. Means for detecting information for identifying the second content part and management information for the second content part; determining whether or not the second content part is commercial based on the second content part identification information; It is determined whether or not the number of bans or the ban date and time indicated in the management information has passed, and if the second content part is a commercial and the ban number or the ban date and time has not passed, the second Stop or pause playback from the time when the content part start notice information is detected until the end of the second content part Content playback apparatus characterized by and a control device for controlling the reproducing means so as to prohibit the. 17. A content recording method for recording a content comprising a series of data in which at least a first content portion and a second content portion, each including at least one of video data and audio data, is recorded. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which detects the start of the second content portion, which is multiplexed and arranged in the first content portion a predetermined time before the end time of the second content portion, and outputs the content to be recorded to the external content through the digital input / output interface And transmitting the second content portion advance notice information to the device. ,
Through the digital input / output interface, it is detected whether or not the content to be recorded is output as video or audio by the content output device. When the content is not output, the second content partial start notice information is detected. Prohibits stopping or pausing the recording from the time until the end of the second content part, and when the recording is being output, recording from the time when the second content part start notice information is detected to the end of the second content part. Controlling the recording of the content so as to permit stop or pause of the content. 18. A content reproducing method for reproducing a content composed of a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is reproduced. Detecting information for identifying the content, which is multiplexed and arranged at the head, and detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; The information which detects the start of the second content portion multiplexed and arranged in the first content portion a predetermined time before the end time of the second content portion is detected, and the reproduced content is recorded through the digital input / output interface. And transmitting the second content portion advance notice information to the device. ,
Through the digital input / output interface, it is detected whether the content recording apparatus is in a stop state or a pause state, and when the content recording apparatus is in the stop state or the pause state, the content is stopped or paused. A content reproduction method, comprising: controlling reproduction of a content. 19. A content recording apparatus for recording a content comprising a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, is recorded. Means for detecting information for identifying the content, which is multiplexed and arranged at the head; means for detecting information for identifying the first content part, which is multiplexed and arranged on the first content part; Means for detecting information for announcing the start of the second content part, which is multiplexed and arranged on the first content part a predetermined time before the end time of the first content part, and recording the content on a recording medium Means for transmitting the content recorded on the recording medium to an external content output device Digital input / output interface, and when the second content portion start notice information is detected, the content recorded on the recording medium is output as video or audio by the content output device via the digital input / output interface. If the output is not detected, and if the output is not output, it is prohibited to stop or pause the recording from the time when the second content part start notice information is detected to the end of the second content part, and the output is performed. And control means for controlling the recording means so as to permit the recording to be stopped or paused from when the second content part start notice information is detected until the end of the second content part. A content recording device comprising: 20. A content reproducing apparatus for reproducing a content composed of a series of data in which at least a first content part and a second content part, each including at least one of video data and audio data, are multiplexed. Reproducing means for reproducing the recorded content from the recording medium; means for detecting information for identifying the content, which is multiplexed and arranged at least at the beginning of the content; and multiplexed and arranged on the first content portion Means for detecting the information for identifying the first content part, and a start of the second content part multiplexed and arranged on the first content part a predetermined time before the end time of the first content part. Means for detecting information for giving notice, and content reproduced by the reproducing means, A digital input / output interface to be transmitted to the content recording device, and whether the content recording device is in a stopped state or a paused state via the digital input / output interface when the second content part start notice information is detected. And a control unit that controls the playback unit so as to stop or pause playback when it is in a stopped state or a paused state.