JP2009239965A - Recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device, a recording and reproducing method and an information transmission medium, which allow a user to view copyright-protected content at a desired time, display information temporarily stored in an easy-to-understand way, and achieve copyright management and release of parental control properly, without complicated operations. <P>SOLUTION: The recording and reproducing device, the recording and reproducing method and the information transmission medium are provided in which the user can temporarily record copyright-protected information on a recording medium, and can reproduce the information within a fixed time or a fixed number of playback times. Thus, the user can view even copyright-protected content at a desired time and the copyright can also be maintained by control information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus and an information transmission medium and system for reproducing or transmitting copyright-protected video information and the like, for example, DVD-RAM, DVD-RW, DVD-R (DVD Write Once (WO)), optical In a disk recording / reproducing apparatus for recording / reproducing information using an optical disk such as a magnetic disk, in particular, a magnetic recording / reproducing apparatus for recording / reproducing information using a magnetic recording medium in which a medium such as a magnetic disk cannot be taken out from the apparatus. The present invention relates to a recording / reproducing apparatus and an information transmission medium that are preferably provided, and more particularly to a recording / reproducing apparatus and method and an information transmission medium that are optimal when time-shifting such as later reproduction of copyright-protected video information or the like.

  Conventionally, a copyright-protected copy of a signal compressed into predetermined data such as image data and audio data using a compression technique such as MPEG is protected for each content using a digital satellite or a digital line of the Internet. A recording / reproducing apparatus for inputting information, decompressing the information, and performing recording / reproducing is being developed.

Japanese Patent Application Laid-Open No. 10-3226486 (patent document cited in the examination of Japanese Patent Application No. 2000-299066)

Here, paid information that is copyright-protected is prohibited from being copied and cannot be recorded. There is a problem that you cannot see paid information.
The present invention has been made in view of the above-described problems, and even copyright-protected information is temporarily recorded on a recording medium and can be reproduced for a predetermined time or number of times of reproduction. Objective.

In order to solve the above-mentioned problems, the present invention includes compressed video information including copyright-protected video information, control information for controlling recording / reproduction of the video information, and additional information related to the video information. Video information input means for input, playback means for playing back the compressed video information as video information via the decompression means, and in the normal playback state, the playback means plays back the video information and temporarily stops playback. When the control information is confirmed and recording is possible, the video information, the control information, and the additional information after the reproduction is interrupted are recorded on a recording medium, and the reproduction is resumed. A reproduction control means for judging whether reproduction is possible from the date time recorded at the time or the number of times of reproduction, and allowing the reproduction means to reproduce the video information when it is judged that reproduction is possible, and the video When reproducing the information, it is determined whether the reproduction is possible from the recorded date time or the number of times of reproduction, and when the reproduction control means determines that reproduction is not possible, leaving only the control information and the additional information, There is provided a recording / reproducing apparatus comprising: a reproduction prohibiting unit that erases the video information from the recording medium or prevents the video information from being reproduced.
Here, the recording / reproducing apparatus includes display means for displaying the presence of the video information to be reproduced recorded as the additional information until the video information is reproduced based on the control information. But it ’s okay.
The display means displays the presence of the video information to be reproduced recorded as the additional information until the video information is reproduced based on the control information, and controls the video information. The recording / reproducing apparatus may be characterized in that the presence of the video information is not displayed when the reproduction based on the information is finished.
Further, the control information may be a recording / reproducing apparatus characterized in that it includes information for managing a period based on a date and time when the video information is temporarily recorded.
The control information includes information related to the number of times that the video information has been temporarily recorded and reproduced, and management means for performing management related to reproduction of the video information based on the information related to the number of times of reproduction. A recording / reproducing apparatus may be used.
The additional information may be a recording / reproducing apparatus characterized by comprising information source information of the video information and a part of the video information.
Further, the additional information may include a title information or still image information of the video information, and may include display means for displaying the title information or still image information as thumbnail information.
In addition, when the date and time when the video information is temporarily recorded is exceeded, the reproduction is prohibited, and when it is not reproduced within this period, the fact that the period has been exceeded is displayed and the information is displayed again. It may be a recording / reproducing apparatus characterized by displaying information to obtain.
The display means displays thumbnail information of the title information or still image information, and when the thumbnail information exceeds a predetermined numerical value, the display format is changed to a list format and displayed. A recording / reproducing apparatus may be used.
The recording medium may be a recording / reproducing apparatus characterized in that it is a magnetic disk.
Moreover, in order to solve the above-mentioned problems, the present invention
In an information recording medium on which copyright-protected video information, control information for controlling the recording and playback of the video information, and additional information related to the video information are recorded, playback is possible, but recording is not possible. Provided is an information recording medium characterized in that at least one of the control information and the additional information recorded together with the video information is time-divisionally inserted and recorded a plurality of times in the video information.
Here, the control information may be an information transmission medium including information for managing a date and time when the video information is temporarily recorded.
The control information may be an information transmission medium including information for managing the number of times the video information is reproduced after being temporarily recorded.
The additional information may be an information transmission medium characterized by comprising information source information of the video information and / or a part of the video information.
Further, the additional information may be an information transmission medium including information for displaying the presence of the video information to be reproduced until the video information is reproduced based on the control information.
Further, the additional information includes information for displaying the presence of the video information to be reproduced, and non-display of the presence of the video information when reproduction of the video information is completed based on the control information. It may be an information transmission medium characterized in that it includes information for the purpose.
Moreover, in order to solve the above-mentioned problems, the present invention
Video information input step for inputting compressed compressed video information including copyrighted and compressed video information, control information for controlling recording and reproduction of the video information, and additional information related to the video information, and the compressed video A reproduction step of expanding the information and reproducing it as video information; a step of causing the reproduction means to reproduce the video information in a normal reproduction state; and checking the control information when instructed to temporarily interrupt the reproduction. When the recording is possible, the video information, the control information, and the additional information after the reproduction is interrupted are recorded, and the reproduction is started from the recorded date time or the number of times of reproduction. A playback control step for permitting playback of the video information when it is determined that playback is possible, and a date of recording when the video information is played back. Alternatively, if the playback control means determines whether playback is possible based on the number of playbacks and determines that playback is not possible, the video information is deleted leaving only the control information and the additional information, or the video information A recording / reproducing method comprising: a step of preventing reproduction of the recording medium.
Here, the recording / reproducing method further includes a step of displaying the presence of the video information to be reproduced recorded as the additional information until the video information is reproduced based on the control information. good.
Further, until the video information is reproduced based on the control information, the presence of the video information to be reproduced recorded as the additional information is displayed and the video information is reproduced based on the control information. The recording / reproducing method may include a step of hiding the presence of the video information when the recording is completed.
Further, the control information may be a recording / reproducing method characterized by including date / time management information in which the video information is temporarily recorded.
In addition, the control information includes information regarding the number of times of reproduction after the video information is temporarily recorded, and includes a step of performing management regarding reproduction of the video information based on the information regarding the number of times of reproduction. A recording / reproducing method may be used.
The additional information may be a recording / reproducing method characterized by comprising information source information of the video information and a part of the video information.
Further, the additional information may include a title information or still image information of the video information and a step of displaying as the thumbnail information of the title information or still image information.

  As described above, according to the present invention, even a content that cannot be recorded by copyright can be viewed when the user wants to view it, and the copyright can be maintained by control information. . In addition, since the temporarily stored information is displayed as additional information, it is easy for the user to understand, and it is possible to prevent forgetting the temporarily stored content, and even if the information has expired, Since the source signal is held, it is possible to easily view the content by accessing the information source when the user wants to view it again, for example, by newly charging.

It is a block diagram of the recording / reproducing apparatus of the Example of this invention. 4 is a flowchart for explaining the operation of the recording / reproducing apparatus shown in FIG. 1. It is a figure for demonstrating a screen display state. It is a figure for demonstrating the structure of a packet.

(A) Configuration and Overall Operation of the First Embodiment First, the recording / reproducing apparatus according to the present invention can be applied to an HDD recording / reproducing apparatus as shown in FIG. The HDD recording / reproducing apparatus according to the first embodiment of the present invention records and reproduces desired data such as still images, moving images, sounds, music, sub-pictures, and the like on tracks.
Specifically, a recording magnetic field is formed on the disk 1 by the magnetic head 2, and data is recorded on the disk 1 and reproduced. Data to be recorded / reproduced is composed of sectors. One sector is composed of a total of 2064 bytes of 2048 bytes of data and corresponding address data. One ECC block (ECC: error correction) is composed of 16 sectors.
For example, the operation unit 4 (KEY) such as a remote controller issues a recording / reproduction command in response to a user operation. The system controller 5 (SYSTEM CONT) determines a command from the operation unit 4 and controls the signal processing unit 6, the servo processor 7 (SERVO), and the switch (SW) 12.
The preamplifier 8 (PAMP) generates a reproduction signal and a servo signal based on the reproduction output read by the magnetic head 2. The servo processor 7 generates a tracking signal based on the servo signal formed by the preamplifier 8 and supplies it to the driver 3. The driver 3 controls the tracking by driving the actuator of the magnetic head 2 based on the tracking signal.

The tracking of the magnetic head 2 is servo-controlled by the flow of each signal of the magnetic head 2 → preamplifier 8 → servo processor 7 → driver 3 → magnetic head 2.
The spindle motor M is provided with a hall element (not shown), and a rotational position signal from the hall element is fed back to the servo processor 7 via the driver 3. The servo processor 7 controls the spindle motor M at a constant rotational speed via the driver 3 based on the speed signal generated from this rotational position signal.

  The preamplifier 8 optimizes the frequency characteristic of the reproduction signal with an equalizer and pulls in the PLL circuit. The preamplifier 8 has a jitter generation circuit that generates a jitter value based on a comparison between the bit clock of the PLL circuit and the time axis of the data. The system controller 5 is configured to take the jitter value generated by the jitter generation circuit by A / D conversion and change the correction amount of the waveform correction circuit at the time of recording based on the jitter value.

  Further, the preamplifier 8 supplies the disk speed signal generated by the PLL circuit to the servo processor 7, and the disk 1 is controlled to rotate at a constant speed via the spindle motor M by this speed signal.

  The signal processing circuit 6 converts the reproduction signal output from the preamplifier 8 into a digital signal, synchronously detects the digital signal, and decodes the reproduction signal when the reproduction output is recorded on the disk 1, Error correction processing is performed in units of one ECC block as described above to obtain an address signal and a data signal for each sector. A track buffer 9 (TB), for example, a 64 Mbit DRAM connected to the signal processing circuit 6 stores the address signal and the data signal, and absorbs the time axis of the variable transfer rate of the video signal.

  From the signal read from the track buffer 9, only the video signal to be reproduced is removed without supplying control information and additional information, and is supplied to the encoder / decoder 10 (AV ENDEC). The AV ENDEC 10 temporarily stores this signal in the buffer memory 11 which is, for example, a 64 Mbit DRAM and reads it appropriately, and the recording mode (described later) in which the signal is recorded is recorded on the disc 1. Detection is performed based on the control data, and the speed at which the signal is expanded is determined in accordance with the detected recording mode. Then, in accordance with the decompression speed, 1 GOP (group of picture) MPEG2 data composed of a plurality of ECC blocks is decompressed into an audio signal and a video signal, separated into an audio signal and a video signal, and D / A (not shown), respectively. It is converted to analog by a converter and output.

  The audio signal (A) output from the AV ENDEC 10 is input to the audio amplifier 13 via the terminal A1 of the switch (SW) 12, amplified to a predetermined signal level, and then reproduced by the speaker 14, while AV The video signal (V) output from the ENDEC 10 is input to the NTSC encoder 15 via the terminal A2 of the switch (SW) 12, and is converted into a signal conforming to the standard television signal of the NTSC system, or a monitor or television as a display It is supplied to the John receiver (TV) 16 and displayed. Further, as will be described later, icons of contents temporarily stored are also supplied to and displayed on a monitor or television receiver (TV) 16 as a display.

A digital broadcast wave signal received by the antenna 17 and a signal input to the Internet or the cable TV network 20 are input in units of the following packets as shown in FIG.
Control information for video information A Control information for controlling playback Video information A specifications Video title, copyright information Copy management information Permit prohibited (recording prohibited, OK only once, OK a predetermined number of times)
Date of transmission Additional information of video information A Title of video information A Information source information Transmission channel, information provider, address URL, date of transmission Video information Content code, type, individual number, main sub-picture, short-time video , Starring, Competition, Actor, Original, Director, Music, Production Copyright information Copy permission prohibited (recording prohibited, only once OK)

  The digital broadcast wave signal received by the antenna 17 is supplied to one input terminal of the AV input conversion unit 19, and the packet including the audio signal / video signal compressed by MPEG or the like received by the TV tuner 18. On the other hand, the audio signal / video signal selectively received by the cable converter (modem) 21 connected to the Internet or the cable TV network 20 is supplied to the other input terminal of the AV input conversion unit 19. In the AV input conversion unit 19, a packet signal (audio signal / video signal) from the TV tuner 18 and a packet signal (audio signal / video signal) from the cable converter (modem) 21 are recorded in the HDD. A format conversion for converting to a mat is performed, and the selection is switched and supplied to the terminals (terminal B1 and terminal B2) of the switch 12, and also supplied to the AV ENDEC 10.

  Note that the switch (SW) 12 is configured to be selectively switched by a control signal supplied from the system controller 5. When reproducing an audio signal / video signal reproduced by the DISC 1 during normal reproduction, the terminal A1 and terminal When the broadcast wave signal received by the antenna 17 or the signal of the Internet or cable TV network is viewed, the selection is switched to the terminal B1 and the terminal B2.

(B) Recording operation In the HDD recording / reproducing apparatus according to the above-described embodiment of the present invention, for example, a high-quality mode capable of recording a signal with a transfer rate of 8 Mbps for two hours for a packet to be transmitted and a signal with a transfer rate of 4 Mbps. Can be recorded at different transfer rates such as an intermediate image quality mode capable of recording for 4 hours and a normal image quality mode capable of recording a signal with a transfer rate of 2 Mbps for 8 hours.

  For this reason, the system controller 5 indicates the recordable area and non-recordable area on the disk 1 corresponding to each recording mode (each transfer rate) prior to the recording control in order to indicate the selection material of the recording mode to the user. The recording time and / or capacity in each recording mode is displayed. Based on this display, data is recorded in the recordable area corresponding to the recording mode selected by the user.

  Specifically, when displaying the recording time and / or capacity in each recording mode, the system controller 5 starts and ends the data area (recorded area) recorded in the management area of the disc 1. The address is read and controlled to the track buffer 9, the start address and end address of the free area are specified from the interval between the start address and the end address of this data area (= the capacity of the free area), and the capacity of each free area is calculated. Remember with position. This is repeated and the capacities of all free areas are calculated and stored together with the position information.

  Next, in the case of three types of transfer rates of 2, 4, 8 Mbps to be recorded, it is calculated whether the capacity of each independent free area can be continuously recorded or continuously reproduced at each transfer rate. To do.

  Regarding the seek time, since the disk is CLV controlled, the address difference between addresses is calculated, and the number of track movements based on the address difference is obtained by referring to the seek table stored in the ROM of the system controller 5. The seek time is calculated by performing a predetermined coefficient operation on this. Alternatively, the seek time may be calculated as a predetermined constant value by the device.

  Next, the type of signal to be recorded is selected in this way, the recording mode (transfer rate) is set, and when the recording start is instructed, the system controller 5 sets the recording mode (transfer) set by the user. Rate) is set to AV-ENDEC10. Further, the control is performed on the disk 1 via the magnetic head 2 and the address signal detected by the address reproducing circuit in the magnetic head 2 is fetched. Based on the address signal, the system controller 5 controls the movement of the magnetic head 2 to a sector to be recorded via the servo processor 7 and the driver 3, and controls the magnetic head 2 in a standby state at this address.

  The AV ENDEC 10 performs MPEG compression processing of video signals (and audio signals) to be recorded in units of GOP while writing / reading control to the buffer memory 11, and the track buffer 9 according to the transfer rate set by the system controller 5. The values of “FULL” and “EMPTY” are set respectively. The values “FULL” and “EMPTY” are values respectively indicating the upper limit value and the lower limit value of data written to the track buffer 9.

  The signal processing circuit 6 controls writing of the data compressed by the AV ENDEC 10 into the track buffer 9 for each predetermined recording unit, and the timing when the data amount of the data written in the track buffer 9 becomes the value of “FULL”. Then, reading of the data written in the track buffer 9 is started, and a sector address, a sync signal, and an error correction code are added to obtain ECC block unit data. Then, this data is transferred to the magnetic head 2 at a transfer rate of “25 Mbps”, for example.

  The magnetic head 2 is controlled to a standby state (waiting for kick) on the track to be recorded until the data read from the track buffer 9 is supplied. The standby state is released, and data is recorded on the target recording track.

  Next, in the track buffer 9, data is written from the AV ENDEC 10 while data is being read. The transfer rate of the written data is, for example, 8 Mbps, but the data is read. The data transfer rate is 25 Mbps. For this reason, since the reading speed is faster than the writing speed to the track buffer 9, the amount of data stored in the track buffer 9 gradually decreases even when the writing is performed, and the “EMPTY” Value.

  When the amount of data written to the track buffer 9 reaches the value “EMPTY”, the system controller 5 controls to stop reading data from the track buffer 9 and the magnetic head 2 should also record next. Control to the standby state (waiting for kick) on the track. Then, the data writing is performed in a state where the reading is not performed, so that the data reading is resumed at the timing when the data amount of the track buffer 9 becomes the value “EMPTY”. The system controller 5 controls the recording of data while performing such writing and reading control on the track buffer 9, so that the continuity of the input data is recorded while intermittently recording on the disk 1. Recording is performed after ensuring.

(C) Playback operation When the playback mode is entered, the system controller 5 is intermittently recorded based on the start address and end address of the data area (recorded area) recorded in the management area on the disc 1. The recording position of the data is searched, and the magnetic head 2 is controlled to move and reproduce so that the data is reproduced in order.

  Further, the system controller 5 detects the compression rate recorded in the control data of the video signal among the reproduction signals, and the data is recorded. The values “FULL” and “EMPTY” are set for the track buffer 9 respectively.

  Data reproduced from the disk 1 is transferred and written to the track buffer 9 at the transfer rate of 25 Mbps. The system controller 5 monitors the remaining capacity of the storage capacity of the track buffer 9, and the data written in the track buffer 9 at the timing when the remaining capacity becomes “EMPTY” is transferred at the transfer rate at the time of recording the data. Read control is performed and this is supplied to the AV ENDEC 10.

  Further, at the timing when the remaining amount becomes “FULL”, the magnetic head 2 is controlled to be in a standby state (a state of waiting for kick), and only data read control from the track buffer 9 is performed. Then, by only reading data from the track buffer 9, the optical head 2 is controlled to be reproduced so that the reproduction of data is resumed at the timing when the remaining amount becomes “EMPTY”. As a result, the data reproduced from the track buffer 9 can be reproduced continuously while intermittently reproducing the data from the disk 1, and the reproduction can be performed while ensuring the continuity of the data.

  The AV ENDEC 10 separates and forms video data and audio data by subjecting the data read from the track buffer 9 to MPEG buffer processing while writing / reading control to the buffer memory 11, and these are formed in a D (not shown). Output via / A converter. As a result, continuous video and audio recorded on the disc 1 can be viewed via, for example, the television receiver 16.

  Here, the processing of the embodiment of the present invention will be described with reference to the flowchart shown in FIG. If necessary, video information A, control information of video information A, and additional information of video information A are input as information input from the outside (step 100).

  Then, it is determined whether or not it is in a reproduction instruction state (step 110). When in the reproduction instruction state (Y in step 100), only the video information A is extracted and reproduced from the AV ENDEC 10 according to the packet information. The control information of the video information A is read, decoded, and reproduced once in accordance with the copy management information that is the control information of the video information A in the temporary storage means (here, HDD), the title and the content individual number, and the playback The date is recorded and used as a history for future management (step 120).

  Next, when it is not a reproduction instruction (in the case of N in step 110), for example, when removing a seat due to a telephone call or the like during the reproduction, it is determined whether or not the input information A is in a temporary storage instruction state. (Step 130) When the information is temporarily stored in the HDD, the history of the recording / playback control information of the video information A is searched from the recording / playback apparatus HDD, and it is determined from the search result whether the video can be temporarily stored. As the control information of A, the history information indicating whether or not the reproduction has been performed at the time of recording is investigated, and if the reproduction is performed within the past predetermined period date, the reproduction cannot be performed, or the reproduction cannot be performed when the reproduction is performed a predetermined number of times. Etc. are determined (step 140).

  If temporary storage is possible (Y in step 140), the video information A, the control information of the video information A, and the additional information of the video information A are recorded in predetermined areas of the temporary storage means (here, HDD). At this time, when the period when this information is reproduced is limited by the copy management information, the time information by the date clock means that this apparatus has as a function is simultaneously recorded, and the time of the information A Management is started (step 150).

  Next, the additional information of the recorded video information A is read out (the information recorded in the HDD or the information of TB9 may be read out). This is interpreted, and the title of the content A information and the like is added as additional information via the AV ENDEC 10. Titles, thumbnails, and the like are displayed on the display 16 as shown in FIG. 3 (like icons) to indicate that information to be reproduced exists in the HDD. When this temporary storage content increases, a plurality of thumbnails cannot be displayed on the screen, so the size may be reduced as shown in a list and button display as shown in FIG. 3 (step 160). The lower left diagram in FIG. 3 shows a thumbnail indicating a still image of a typical screen of one content, title information, input channel, recorded date and time, content providing manufacturer information (commercial) (this information By displaying the content, the content transmission side can obtain profits through commercials, so that the billing amount for the content can be reduced). This thumbnail is linked to the video information that is the main information, and by selecting this information, the video information that is the main information can be reproduced. Since this thumbnail information increases as the recording operation continues, when it exceeds the predetermined screen so as not to deviate from the display screen, as shown in the lower right of FIG. Change to a list of days, etc. As a result, a large amount of information during reproduction can be managed.

  Next, when the content A recorded on the HDD is played back by the input means such as play or pause release such as a mouse or a remote controller at the KEY4 or icon input position, the user selects the content to be played back with the icon or the like. (Step 170), it is determined whether or not it is in a reproduction instruction state (Step 180), the time when the A information is recorded is compared with the current time, the time limit is exceeded, or the number of reproduction times is limited with respect to the recorded number of reproductions (Step 190), and if it is not exceeded, that is, if reproduction is permitted (N in step 190), only the video information A on the HDD is read, and display reproduction is performed on the monitor 16 via the AV ENDEC 10. After the reproduction, the control information of the video information A on the HDD is updated to record when it is reproduced once (step 200).

  In addition, when reproduction is performed only once or a predetermined number of times are reproduced and reproduction is prohibited (in the case of Y in Step 190), the control information of the video information A on the HDD is changed to prohibited, and the video information on the HDD is changed. In addition to deleting A, the title and thumbnail of the displayed additional information are deleted from the monitor.

  In this case, there is a problem that if the playback is not performed even after the period to be played back, the information cannot be viewed despite being paid information. In this case, the title of the displayed additional information In addition to displaying thumbnails and the like from the monitor without expiration, the information indicating that the expiration date has expired is displayed to the user, and a necessary information source signal is displayed to view the information A again. By making it possible to obtain the information A again via a communication line such as the above, it is possible to maintain the viewing rights of a busy user (step 210).

  The present invention is not limited to the above-described embodiment described as an example, and according to the design, etc., as long as the technical idea according to the present invention is not deviated from other embodiments. Of course, various modifications are possible.

1 ... disc,
2 ... Magnetic head,
3 ... Driver,
4 ... operation part,
5 ... System controller,
6 ... Signal processing unit,
7 ... Servo processor,
8 ... Preamp,
9 ... Track buffer,
10: Encoder / decoder (AV ENDEC),
11: Buffer memory,
20 ... Recording / reproducing apparatus,
21 ... Compression / decompression processing device,

Claims (3)

Video information input means for inputting compressed video information, additional information related to the video information, and copy control information related to copyright protection of the video information;
Control means for controlling recording and reproduction based on the copy control information;
Temporary recording means for temporarily recording the video information;
Playback means for expanding and playing back the video information,
When the control means determines that recording is temporarily possible based on the copy control information when recording is necessary temporarily, the control information and additional information related to the video information And the copy control information related to the video information is temporarily recorded in the temporary recording means,
When the video information is reproduced and the reproduction period is limited, the reproduction period is compared with the current time, and the reproduction is permitted only when the current time does not exceed the reproduction period. A recording / reproducing apparatus. Video information input means for inputting compressed video information, additional information related to the video information, and copy control information related to copyright protection of the video information;
Control means for controlling recording and reproduction based on the copy control information;
Temporary recording means for temporarily recording the video information;
Playback means for expanding and playing back the video information,
When the control means determines that recording is temporarily possible based on the copy control information when recording is necessary temporarily, the control information and additional information related to the video information And the copy control information related to the video information is temporarily recorded in the temporary recording means,
When the video information is played back and the playback count is limited, the limit is compared with the current playback count, and the playback is permitted only when the playback count does not exceed the limit. And a recording / reproducing apparatus. 3. The recording / reproducing apparatus according to claim 1, wherein when the control means determines that the video information cannot be reproduced, only the control information and the additional information are left, and the video information is stored in the recording medium. And a playback prohibiting means for preventing the video information from being played back.

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