JP2012160253A - Recording and reproducing device and recording and reproducing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to record even information whose copyright is protected on a recording medium temporarily without infringing copyright protection by properly selecting the recording medium and to make it possible to reproduce the information during a predetermined time period and the number of reproductions.SOLUTION: A recording and reproducing device includes first and second recording means performing recording on first and second information recording mediums respectively, selects one of the first and second recording means, to perform recording, when copy control information is for the permission of recording or for the permission of recording only once and selects previously set one of the first and second recording means, to temporarily record image information, when the copy control information is for the inhibition of recording and it is determined that temporary recording is possible, and permits reproduction, only when not exceeding a reproduction time, when the reproduction time is restricted, in reproduction.

Description

  The present invention relates to a recording / reproducing apparatus and a recording / reproducing method for reproducing or transmitting copyright-protected video information and the like, and in particular, for example, DVD-RAM, DVD-RW, DVD-R (DVD Write Once (WO)), optical A recording / reproducing apparatus for recording / reproducing information using an optical disk such as a magnetic disk, a recording / reproducing apparatus for recording / reproducing information using a recording medium from which a recording medium such as a magnetic disk cannot be removed, and an optical disk, etc. Recording / reproduction that is most suitable for time-shifting that reproduces copyright-protected video information and the like later by applying it to a recording / reproduction device that records and reproduces information using a recording medium that can be removed from the device. The present invention relates to an apparatus and a recording / reproducing method.

  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.

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 for copyright-protected information, by appropriately selecting a recording medium, the recording medium can be temporarily recorded without violating copyright protection. It is intended to be able to be recorded and recorded for a predetermined time or number of times of reproduction.

In order to solve the above problems, the present invention provides the following 1) to 2). That is,
1) Video information input means for inputting compressed video information and copy control information relating to copyright protection of the video information from digital television broadcast or cable television broadcast, and control means for controlling recording and reproduction based on the copy control information A first recording means for recording the video information on a first information recording medium, a second recording means for recording the video information on a second information recording medium, and decompressing and reproducing the video information And reproducing means for selecting and recording either the first or the second recording means when the copy control information permits recording or recording once only. If the copy control information is prohibited from being recorded and it is determined that recording is possible temporarily, a predetermined one of the first or second recording means is selected. When the video information is temporarily recorded and the video information is played back and the playback time is limited, the playback is permitted only when the playback time is not exceeded. A characteristic recording / reproducing apparatus.
2) inputting compressed video information and copy control information relating to copyright protection of the video information from digital television broadcasting or cable television broadcasting; controlling recording and reproduction based on the copy control information; A first recording step for recording information on a first information recording medium; a second recording step for recording the video information on a second information recording medium; and a step of expanding and reproducing the video information. And when the copy control information is recording permission or recording permission only once, either the first recording step or the second recording step is selected to permit recording, and the copy control information is recorded. If it is prohibited and recording is possible temporarily, a predetermined one of the first or second recording steps is selected and A step of permitting playback only when the video information is temporarily recorded and the video information is played back, and the playback time is limited and the playback time is not exceeded. A recording / reproducing method characterized by the above.

  The recording / reproducing apparatus according to the present invention temporarily stores content in, for example, an HDD that cannot remove a medium from a plurality of recording means, even if the content is not generally recorded by copyright. By doing so, the user can see when he / she wants to see it, and the copyright can be maintained by the control information provided with reproduction restrictions such as a predetermined time and number of times. Since the medium stored at this time is not removable, the control information and content can be managed to the end, and illegal copying can be prevented. 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, for example, charging a new fee when it is desired to view it again.

(A) Configuration and Overall Operation of First Embodiment First, the recording / reproducing apparatus according to the present invention is applied to an HDD recording / reproducing unit (device) and a DVD recording / reproducing unit (device) as shown in FIG. be able to. The HDD recording / reproducing unit according to the first embodiment of the present invention is adapted to record / reproduce desired data such as still images, moving images, sounds, music, sub-pictures, etc., on tracks.

  Specifically, the HDD recording / reproducing unit forms a recording magnetic field on the disk 1a by the magnetic head 2a, and records and reproduces data on the disk 1a. The DVD recording / reproducing unit forms an optical spot on the disk 1b by the optical head 2b, and records and reproduces data on the disk 1b. 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 to the HDD recording / reproducing unit and the DVD recording / reproducing unit of each of user's operations or input information. The system controller 5 (SYSTEMCONT) determines a command from the operation unit 4 and controls the respective signal processing units 6a and 6b, servo processors (SERVO) 7a and 7b, and switches (SW) 12a to 12d.

  A preamplifier (PAMP) 8a of the HDD recording / reproducing unit generates a reproduction signal and a servo signal based on the reproduction output read by the magnetic head 2a. The servo processor 7a generates a tracking signal based on the servo signal formed by the preamplifier 8a and supplies it to the driver 3a. The driver 3a controls the tracking by driving the actuator of the magnetic head 2a based on the tracking signal.

  The tracking of the magnetic head 2a is servo-controlled by the flow of each signal of the magnetic head 2a → preamplifier 8a → servo processor 7a → driver 3a → magnetic head 2a.

  The spindle motor Ma is provided with a hall element (not shown), and a rotational position signal from the hall element is fed back to the servo processor 7a via the driver 3a. The servo processor 7a controls the spindle motor Ma to a constant rotational speed via the driver 3a based on the speed signal generated from this rotational position signal.

  The preamplifier 8a optimizes the frequency characteristic of the reproduction signal with an equalizer and pulls in the PLL circuit. The preamplifier 8a 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 8a supplies the disk speed signal generated by the PLL circuit to the servo processor 7a, and the disk 1a is controlled to rotate at a constant speed via the spindle motor Ma by this speed signal.

  The signal processing circuit 6a converts the reproduction signal output from the preamplifier 8a 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 1 ECC block 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 time-axis fluctuations in the variable transfer rate of the video signal.

  Similarly, the preamplifier (PAMP) 8b of the DVD recording / reproducing unit generates a reproduction signal and a servo signal based on the reproduction output read by the optical head 2b. The servo processor 7b generates a tracking signal based on the servo signal formed by the preamplifier 8b and supplies it to the driver 3b. Based on the tracking signal, the driver 3b drives the actuator of the optical head 2b to control tracking.

  The tracking of the optical head 2b is servo-controlled by the flow of each signal of the optical head 2b → preamplifier 8b → servo processor 7b → driver 3b → optical head 2b.

  The spindle motor Mb is provided with a hall element (not shown), and a rotational position signal from the hall element is fed back to the servo processor 7b via the driver 3b. The servo processor 7b controls the spindle motor Mb to a constant rotational speed via the driver 3b based on the speed signal generated from this rotational position signal.

  The preamplifier 8b optimizes the frequency characteristic of the reproduction signal with an equalizer and pulls in the PLL circuit. The preamplifier 8b includes 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 8b supplies the disk speed signal generated by the PLL circuit to the servo processor 7b, and controls the rotation of the disk 1b with a constant speed via the spindle motor Mb.

  The signal processing circuit 6b converts the reproduction signal output from the preamplifier 8b into a digital signal, synchronously detects the digital signal, and decodes the recording signal when the reproduction output is recorded on the disk 1b. Error correction processing is performed in units of 1 ECC block to obtain an address signal and a data signal for each sector. A track buffer (TB) 9 which is, for example, a 64 Mbit DRAM connected to the signal processing circuit 6b in common with the HDD recording / reproducing unit stores the address signal and the data signal, and changes the time axis of the variable transfer rate of the video signal. To absorb.

  From the signals read from the track buffer 9 by the signal processing units 6a and 6b from the respective media, only the video signal to be reproduced is cut out except for control information and additional information, and the switches 12a to The signal is supplied to the encoder / decoder (AV ENDEC) 10 through 12b. 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 disks 1a and 1b. Based on the detected control data, 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 (AMP) 13, amplified to a predetermined signal level, and then reproduced by the speaker 14. On the other hand, the video signal (V) output from the AV ENDEC 10 is input to the NTSC encoder 15, converted into a signal conforming to the NTSC standard television signal, and supplied to a monitor or television receiver (TV) 16 as a display. 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.

The digital broadcast wave signal received by the antenna 17 and the signal input from the input terminal 20 of the Internet or cable TV network are input in units of 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 CGMS (CopyGenerationManegimentSystem)
Copy permission 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)

  A digital broadcast wave signal received by the antenna 17 is subjected to decompression processing for a packet including an audio signal / video signal compressed by MPEG or the like received by the DTV tuner 18, and is applied to one input terminal of the AV input conversion unit 19. On the other hand, the audio signal / video signal selectively received by the cable converter (modem) 21 connected to the input terminal 20 of the Internet or cable TV network is supplied to the other input terminal of the AV input conversion unit 19. The The AV input conversion unit 19 is necessary when recording the packet signal (audio signal / video signal) from the TV tuner 18 and the packet signal (audio signal / video signal) from the cable converter (modem) 21 on the HDD or DVD. The format conversion is performed to convert the data to a new format, and the selected format is switched and supplied to the terminals (terminal B1 and terminal B2) of the switch 12, and also supplied to the AV ENDEC 10.

  The switches (SW) 12a and 12b are configured to be selectively switched by a control signal supplied from the system controller 5. When reproducing audio signals / video signals reproduced on the disks 1a and 1b during normal reproduction, Are selectively switched to the upper terminal A1 and the terminal A2, and are switched to the lower terminal B1 and the terminal B2 when a broadcast wave signal received by the antenna 17 or a signal of the Internet or cable TV network is viewed.

(B) Recording operation In the HDD recording / reproducing unit and the DVD recording / reproducing unit according to the first embodiment of the present invention described above, for example, a high image quality capable of recording a signal having a transfer rate of 8 Mbps for 2 hours for 2 hours. It is possible to record at different transfer rates such as an intermediate image quality mode in which a signal with a transfer rate of 4 Mbps can be recorded for 4 hours and a normal image quality mode in which a signal with a transfer rate of 2 Mbps can be recorded for 8 hours. Yes.

  Therefore, the system controller 5 indicates the recordable areas on the disks 1a and 1b corresponding to the respective recording modes (each transfer rate) and the unrecordable prior to the recording control in order to indicate the recording mode selection material to the user. The area is determined, and 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 on each of the discs 1a and 1b, the system controller 5 displays the data area recorded in the management area of the disks 1a and 1b. The start address and end address of (recorded area) are read out to the track buffer 9 and the start address and end address of the free area are specified from the interval between the start address and end address of this data area (= the capacity of the free area) Then, the capacity of each free area is calculated and stored together with the 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 3 types of transfer rates of 2 Mbps, 4 Mbps and 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.

  For the seek time, 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. A seek time is performed by calculating a predetermined coefficient.

  Next, the type of signal to be recorded is selected in this way, the recording mode (transfer rate) is set, and the start of recording is instructed. The HDD recording / reproducing unit controls the disk 1a via the magnetic head 2a and takes in an address signal detected by an address reproducing circuit in the magnetic head 2a. Based on this address signal, the system controller 5 controls the movement of the magnetic head 2a to a sector to be recorded via the servo processor 7a and the driver 3a, and controls the magnetic head 2a to a standby state at this address.

  The video signal (and audio signal) to be recorded is MPEG-compressed in GOP units, and the values of “FULL” and “EMPTY” of the track buffer 9 are set according to the transfer rate set by the system controller 5. 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 6a controls to write the data converted and compressed by the AV input conversion unit to the track buffer 9 for each predetermined recording unit, and the data amount of the data written to the track buffer 9 is the value of “FULL”. At this timing, 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 form ECC block unit data. Then, this data is transferred to the magnetic head 2a at a transfer rate of, for example, “25 Mbps”.

  The magnetic head 2a is controlled in 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.

  Further, in DVD, control is performed on the disk 1b via the optical head 2b, and the address signal detected by the address reproducing circuit in the optical head 2b is taken in. Based on this address signal, the system controller 5 controls the movement of the optical head 2b to a sector for recording via the servo processor 7b and the driver 3b, and controls the optical head 2b to a standby state at this address.

  The video signal (and audio signal) to be recorded is MPEG-compressed in GOP units, and the values of “FULL” and “EMPTY” of the track buffer 9 are set according to the transfer rate set by the system controller 5. 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 6b controls to write the data converted and compressed by the AV input conversion unit to the track buffer 9 for each predetermined recording unit, and the data amount of the data written to the track buffer 9 is the value of “FULL”. At this timing, 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 form ECC block unit data. Then, this data is transferred to the optical head 2b at a transfer rate of “25 Mbps”, for example.

  The optical head 2b is controlled in 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.

(C) Playback operation When the playback mode of the HDD recording / playback unit is entered, the system controller 5 intermittently operates based on the start address and end address of the data area (recorded area) recorded in the management area on the disk 1a. The recording position of the data recorded on the magnetic head 2a is searched, and the magnetic head 2a 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 1a is transferred to and written in 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 a is controlled to be in a standby state, and only data read control from the track buffer 9 is performed. Then, by only reading data from the track buffer 9, the magnetic head 2a is subjected to reproduction control so that the reproduction of data is resumed at the timing when the remaining amount becomes “EMPTY”. As a result, data reproduced from the track buffer 9 can be continuously reproduced while data is intermittently reproduced from the disk 1a, and reproduction with data continuity being ensured can be performed.

  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 disk 1a can be viewed via the television receiver 16, for example.

  In the playback mode of the DVD recording / playback unit, 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 disk 1b. The recording position of the data is searched, and the optical head 2b is controlled to move and reproduce so as to reproduce the data sequentially.

  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 1b is transferred to and written in 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 optical head 2b is controlled to be in a standby state (waiting for kicking), 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, data reproduced from the track buffer 9 can be continuously reproduced while data is intermittently reproduced from the disk 1b, and reproduction with data continuity being ensured can be performed.

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

  Here, the TB9 is connected to each signal processing unit in the HDD recording / reproducing unit and the DVD recording / reproducing unit, and is used in common by dividing the area or dividing the time axis. The cost is reduced. In addition, the information can be copied from the DVD to the HDD, and conversely from the HDD to the DVD via the TB, without transferring from the outside to the outside, under the control of the system controller. Yes. Here, the specific processing of the present plan will be described with reference to the flowchart of 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 the reproduction instruction state (step 110). When it is in the reproduction instruction state (Y in step 110), only the video information A is extracted and reproduced from the AV ENDEC 10 according to the packet information. At that time, the control information of the video information A is read and decoded, and the temporary storage means (semiconductor memory, HDD or DVD) is copied according to the copy management information indicating whether the copy is permitted or only once or prohibited, which is the control information of the video information A. It is assumed that the information has been reproduced once, the title, the content individual number, the reproduction date, etc. are recorded and used as a history for future management (step 120).

  Next, when the instruction is not a reproduction instruction (N in step 110), for example, when the user takes his seat off during reproduction, the input information A is detected as a temporary storage instruction state (in step 130). Y) At that time, if it is a copy permission or once only OK flag (Y in step 140) according to the copy management information that is copy permission, once permitted or prohibited, which is control information (Y in step 140), either HDD or DVD user Alternatively, the recording is transferred to the medium determined by the initial setting or the presence / absence of the disk (step 150).

  On the other hand, if recording is prohibited (N in step 140), the medium is an HDD, and when temporarily storing in the HDD, the recording / playback control information history of the video information A is searched from the recording / playback apparatus HDD, and temporarily stored from the search result. Whether recording is possible (investigation of history information indicating whether or not playback has been recorded as control information of video information A in the past). If playback has been performed within a predetermined period in the past, playback is not possible or playback is performed a predetermined number of times. In such a case, it is determined that reproduction cannot be performed (step 160).

  When recording is possible (Y in step 160), 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, if the period when this information is reproduced is limited by the copy management information, the time information by the date clock means possessed by this apparatus is simultaneously recorded, and the time management of the information A is performed. Start (step 170).

  Next, the additional information of the recorded video information A is read (the information recorded in the HDD recording / reproducing unit or the information of TB9 may be read). This is interpreted, and the title etc. of the content A information is added as AV ENDEC10 as additional information. The title, thumbnail, and the like are displayed on the display display section (like icons) via the, to display that information to be reproduced exists in the HDD recording / reproducing section (step 180). When this temporary storage content increases, a plurality of thumbnails cannot fit on the screen, and the size may be reduced as in a list display and a button display as shown in FIG. 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, the playback button, title, etc., as shown in the lower right of FIG. Change the list to record date. 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 190), a reproduction instruction state is detected (Step 200), and the recording time of the A information is compared with the current time as described above, and the time limit is exceeded or the number of reproductions recorded is recorded. If the number of playbacks is limited (step 210), if not, that is, if playback is permitted (N in step 210), only the video information A on the HDD is read and played back from the monitor via AV ENDEC 10 Then, after the reproduction, the control information of the video information A on the HDD is updated to record when it is reproduced once (step 220). In addition, when reproduction is performed only once or a predetermined number of times has been reproduced and reproduction is prohibited (Y in step 210), the control information of the video information A on the HDD is changed to prohibited, The video information A is deleted, and the title, thumbnail, etc. of the displayed additional information are deleted from the monitor (step 230). In this case, for example, if the playback is not performed even after the period to be played back when viewing the billing information, there is a problem that the information cannot be viewed despite being paid information. In this case, the title, thumbnail, etc. of the displayed additional information are not deleted from the monitor, but the expiration date is displayed to the user, and the necessary information source signal is displayed to view the information A again. By using this information source signal, the information A can be retrieved again via a communication line such as the Internet, so that the viewing rights of busy users can be maintained.

  Next, the recording process will be described. If recording is possible (Y in step 150), 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, DVD), respectively (step 240). . Next, the additional information of the recorded video information A is read (reading may be information recorded on the DVD or information of TB9), and this is interpreted, and the title of the content A information and the like are added as additional information via the AV ENDEC 10. Titles, thumbnails, etc. are displayed on the display section (like icons) to indicate that information to be reproduced exists in the DVD (step 250). When this temporary storage content increases, a plurality of thumbnails cannot fit on the screen, and the size may be reduced as in the list and button display as described above.

  Next, when the content A recorded on the DVD is reproduced 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 reproduced with an icon or the like. (Step 260), it is detected whether or not it is in a reproduction instruction state (Step 270). If it is in a reproduction instruction state (Y in Step 270), only the video information A on the DVD is read and reproduced from the monitor 16 via the AV ENDEC 10 Then, after the reproduction, the control information of the video information A on the DVD is updated to record when it is reproduced once (step 280).

  In this way, by controlling the recording / reproducing medium with the copy control information, illegal copying can be prevented, and information permitted to be copied can be recorded on a user's favorite medium, and the user's convenience is improved. Further, in this apparatus, since the HDD apparatus and the DVD apparatus are used in common, the information can be directly transferred and the cost can be reduced.

  In this embodiment, the description has been made on an optical disk such as a DVD as the second removable medium, but solid semiconductor memory (compact flash, memory stick, SD card) is used as the second, third and fourth media. ), FDD, removable HDD, MD (mini-disc), etc., as compared with the second, the third and fourth media can be selectively used as the transfer rate of the content to be recorded, the content Select according to type (music, video, etc.), file size, etc. 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.

It is a block diagram which shows the structure of the Example of this invention. It is a flowchart for demonstrating operation | movement of the Example of this invention. It is a figure for demonstrating the example of a display of the Example of this invention. It is a figure for demonstrating an example of the packet of the Example of this invention.

1a, 1b ... disk,
2a ... Magnetic head,
2b: optical head,
3a, 3b ... driver,
4 ... operation part,
5 ... System controller,
6a, 6b ... signal processing unit,
7a, 7b ... Servo processor,
8a, 8b ... Preamplifier,
9: Track buffer (TB),
10: Encoder / decoder (AV ENDEC),
11: Buffer memory (BF),
12a, 12b, 12c, 12d ... switch,
13 ... Amplifier,
14 ... Speaker,
15 ... NTSC encoder,
16 ... monitor,
17 ... antenna,
18 ... DTV tuner,
19 ... AV input selector,
20: Input terminal,
21 ... Cable converter (modem)

In order to solve the above problems, the present invention provides the following 1) to 2). That is,
1) an image information input means for entering a copy control information indicating copy permission / copy prohibition of copy permitted / predetermined number only once on copyright protection of compressed video information and the video information, the copy control information Control means for controlling recording and reproduction based on the first recording means for recording the video information on a first information recording medium, and second recording means for recording the video information on a second information recording medium. , and a reproducing means for reproducing by extending said image information, wherein, when the copy permission of only the copy control information at least once, either of the first or second recording means one of them by selecting whether to permit recording of the video information, the a copy control information recording prohibited if it is determined that it is possible to temporarily record, while predetermined by the control means the first of In the case where the not selected to temporarily recorded in the recording means, temporarily records the image information by selecting the other of said second recording hand stepped predetermined reproducing the video information there are, in the case where reproducible time is limited, the recording and reproducing apparatus, characterized in that only permits the reproduction when it does not exceed the playable time.
2) a step to enter the copy control information indicating copy permission / copy prohibition of copy permitted / predetermined number only once on copyright protection of compressed video information and the video information, recorded on the basis of the copy control information A step of controlling reproduction, a first recording step of recording the video information on a first information recording medium, a second recording step of recording the video information on a second information recording medium, and the video information And when the copy control information can be copied only at least once, either one of the first recording step and the second recording step is selected . allow recording, said a copy control information recording prohibited temporarily when the recording is determined to be possible, temporarily recorded in said one predetermined first recording step Without selection that temporarily records the image information by selecting the other of said second recording steps predetermined in the case of reproducing the video information, playable time if it is limited, the recording and reproducing method characterized by a step of only permitting reproduction when it does not exceed the playable time.

Claims (2)

Video information input means for inputting compressed video information and copy control information relating to copyright protection of the video information from digital television broadcasting or cable television broadcasting;
Control means for controlling recording and reproduction based on the copy control information;
First recording means for recording the video information on a first information recording medium;
Second recording means for recording the video information on a second information recording medium;
Playback means for expanding and playing back the video information,
The control means includes
If the copy control information is recording permission or recording permission only once, select either the first recording means or the second recording means to permit recording,
If it is determined that the copy control information is recording-prohibited and recording is possible temporarily, a predetermined one of the first or second recording means is selected to select the video Temporarily record information,
When the video information is reproduced and the reproduction time is limited, reproduction is permitted only when the reproduction time is not exceeded. Inputting compressed video information and copy control information relating to copyright protection of the video information from digital television broadcasting or cable television broadcasting;
Controlling recording and reproduction based on the copy control information;
A first recording step of recording the video information on a first information recording medium;
A second recording step of recording the video information on a second information recording medium;
Expanding and playing back the video information,
If the copy control information is recording permission or recording permission only once, either one of the first recording step and the second recording step is selected to allow recording,
If it is determined that the copy control information is recording-prohibited and recording is possible temporarily, a predetermined one of the first or second recording steps is selected to select the video Temporarily record information,
And a step of permitting the reproduction only when the reproduction time is not exceeded when the reproduction of the video information is restricted and the reproduction time is limited.

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