JP2007157207A - Optical disk drive - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk drive which simply shows a user how to solve a trouble caused by copy-once without depending on a user's manual by displaying trouble shooting when the copy control information on the content adopts copy-once system but the optical disk is not coping with the copy-once system. <P>SOLUTION: A controller 4, determining that a TV program to be recorded at (s4) adopts copy-once system, determines whether the optical disk 100 set in the drive 1 is coping with CPRM or not (s5). This decision is made by reading the lead-in area of the disk 100 with the PU head 2. The controller 4 makes its decision by obtaining the information read by the PU head 2 through the recording and reproducing section 3, and shows the trouble shooting display on the OSD processor 12 and the display 7 if the disk 100 is determined not coping with CPRM (s11). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus for recording or reproducing content having copy control information such as digital broadcasting, and more particularly to an optical disc apparatus for recording on an optical disc having illegal copy prevention support information.

In recent years, digitalization of broadcasting has progressed, and content is sent in a digital state, so that even if copying is repeated, the quality of the content does not deteriorate and it can be easily copied in large quantities. For this reason, technology for protecting the copyright holder of content has become indispensable.
Therefore, in the current BS digital broadcasting and the like, copy control information is transmitted simultaneously with the content. The copy control information is acquired from, for example, EPG (Electronic Program Guide). The EPG includes content guidance.

There are the following three types of copy control information.
The first is copy free. This means that recording can be performed any number of times, that is, copying can be performed freely.
The second is a copy once. This is to limit the number of copies to only one.
The third is copy never. This is something you can't do about recording.

On the other hand, an apparatus for recording or reproducing the content is an optical disk apparatus. The optical disk device is, for example, a DVD recorder.
DVD-RAM and DVD-RW (version 2.0) among optical discs that can be recorded by the optical disc apparatus are recorded in a form that cannot be copied to other DVD families when recording copy-once content. The recording method is a method in which content is encrypted and recorded based on a media ID unique to the optical disc.

However, DVD-R and DVD-RW (version 1.0) in the DVD family do not support encryption using a media ID unique to the optical disc.
For this reason, when the content copy control information is copy-once, DVD-R and DVD-RW (version 1.0) cannot record copy-once video, so the conventional optical disk apparatus displays an error. The user who saw the error display referred to the instruction manual and solved the trouble.

On the other hand, an optical disc apparatus as described in Patent Document 1 has been proposed.
In the optical disc apparatus, when the copy control information of the content is copy once, the control means for determining whether or not the optical disc set in the apparatus main body is an optical disc compatible with copy once, and when the optical disc is not an optical disc compatible with copy once, And display means for displaying an error when the control means determines.
The user who sees this error display refers to the instruction manual and solves the trouble.
JP 2003-317377 A

  However, the copy-once mechanism is very difficult for general users, and most users cannot read and understand the instruction manual.

For this reason, in the conventional optical disk device and Patent Document 1, it is a problem that the user is referred to the instruction manual and the trouble is solved by himself, which imposes a great burden and effort on the user.
In particular, a user who is very unfamiliar with electronic equipment cannot solve the trouble on his own by referring to the instruction manual, which causes a complaint and this is also a problem.

  Further, even if the instruction manual is stored at the time of purchase of the apparatus main body, it is common to forget where it has been stored as time passes. Therefore, in order to refer to the instruction manual, the user has to find a storage location for the instruction manual. In addition, there is a case where the instruction manual is lost, and in this case, it is a problem that the user is required to perform a very troublesome work of inquiring the purchaser.

  The present invention is intended to solve such a conventional problem. When the copy control information of the content is copy-once and the optical disc is not copy-once compatible, troubleshooting is displayed and the copy-once is performed without relying on the instruction manual. An object of the present invention is to provide an optical disc apparatus that simply shows a user a trouble-solving method.

  The optical disc apparatus of the present invention has the following configuration in order to solve the above problems.

(1) In an optical disc apparatus provided with recording / reading means for irradiating an optical disc set in the apparatus main body with a laser beam from a pickup head and recording or reading data on the optical disc.
When recording the content input from the input source, the recording / reading unit refers to the copy control information of the content input together with the content from the input source and records the content only once. It is determined whether or not the copy-once is permitted.If the content is copy-once, it is determined whether or not the optical disk set in the apparatus body is an optical disk compatible with copy-once.
When the recording / reading means determines that the optical disk set in the apparatus main body is not a copy-once optical disk, troubleshooting is displayed to prompt the user to replace the optical disk set in the apparatus main body with another copy-once optical disk. Display means for displaying on the instrument.

In this configuration, the display device is, for example, a TV receiver, a monitor such as a liquid crystal display, and a display unit built in the apparatus main body. The content is, for example, a TV program. The copy once compatible optical disc is, for example, an optical disc compatible with CPRM (Content Protection for Recordable Media).
Further, the copy control information is information transmitted together with the content from the broadcasting station side, and for example, copy prohibition, copy once, or copy free. Here, as a premise, the apparatus main body has a mechanism that reacts correctly to the copy control information.
In this configuration, when recording a copy-once video, it is assumed that the optical disk set in the apparatus body is not a copy-once compatible optical disk.
The recording / reading unit acquires management information of the content to be recorded on the optical disc, refers to the management information, and acquires copy control information of the content to be recorded on the optical disc. The management information is EPG, for example.
When the content is determined to be copy-once with reference to the copy control information, the recording / reading unit determines whether the optical disc set in the apparatus main body is an optical disc compatible with copy-once. If the recording / reading means determines that the optical disk is not copy-once, the display means displays troubleshooting on the display.
This troubleshooting is a disk replacement request screen, which prompts the user to replace the optical disk set in the apparatus main body with another copy-once optical disk. The troubleshooting is, for example, “You cannot record unless you change to another copy-once optical disc. Do you want to change the optical disc?”.
If it is determined by referring to the copy control information that the content is copy-free, the recording / reading means starts recording on the optical disc. If it is determined that the content is copy-inhibited, the recording / reading means does not record on the optical disc. That is, when it is determined that the content is copy-free or copy-prohibited, the recording / reading means performs normal processing.
As described above, there is an effect that it is possible to easily show the user how to solve the trouble with the copy once without relying on the instruction manual.
The display is preferably a monitor such as a TV receiver or a liquid crystal instead of a display unit built in the apparatus main body, and the display means preferably displays the troubleshooting on the display. This is because the screen size of a monitor such as a TV receiver or a liquid crystal is larger than the display unit built in the apparatus main body.

(2) If the recording / reading unit determines that the optical disk set in the apparatus main body is a copy-once compatible optical disk, can the copy-once optical disk be recorded in the recording format currently set in the apparatus main body? Judge whether or not
When the recording / reading means determines that the recording means is not recordable according to the currently set recording format, the display means troubleshoots to change the currently set recording format to a recordable recording format. Is displayed on the display.

In this configuration, the recordable recording format as of 2005 is, for example, the -VR format. The recording format that cannot be recorded is, for example, the DVD-Video format.
In this configuration, when recording a copy-once video, it is assumed that the recording format currently set in the apparatus main body could not be recorded.
The factor that complicates the copy-once mechanism is not only whether the optical disc is compatible with copy-once in (1) above. It also includes whether the recording format is copy-once compatible.
Therefore, the recording / reading means determines whether or not recording is possible according to the currently set recording format. When the recording / reading means determines that recording is not possible according to the currently set recording format, the display means displays troubleshooting on the display.
This troubleshooting is a recording format setting change request screen, which prompts the user to change the currently set recording format to a recordable recording format. The troubleshooting is, for example, “Do you want to change the currently set DVD-Video format to a recordable-VR format?”.
On the other hand, if it is determined that recording is possible with the currently set recording format, the recording / reading means starts recording on the optical disc because the optical disc is compatible with copy once and the recording format is appropriate. The recording / reading means performs encryption when recording a copy-once video on a copy-once optical disc.
From the above, there is an effect that more trouble-solving methods by copy once can be easily shown to the user without relying on the instruction manual.
The optical disc apparatus includes an operation unit having a response key that responds to the troubleshooting displayed by the display unit, and the display unit is set by the operation of the response key of the operation unit. A configuration for displaying on the display a troubleshooting prompting the user to replace the optical disk set in the apparatus main body with another copy-once optical disk when there is a response that the recording format is not changed to a recordable recording format. May be added.

(3) The recording / reading means ejects the optical disk set in the apparatus main body when the display means displays the troubleshooting on a display.

In this configuration, the optical disk is usually mounted on a tray. In addition, there is a type of device in which an optical disc is inserted, such as a slot-in-mechanism optical disc device.
When recording a copy-once video, it must be recorded on a copy-once optical disc. For this reason, an optical disc that does not support copy-once is often set in the apparatus main body.
Therefore, the recording / reading means ejects such an optical disc so that the disc can be changed quickly and easily.
As described above, there is an effect that the user can change the optical disk quickly and easily.

  According to the present invention, there is an effect that it is possible to easily show a user a trouble-solving method based on copy-once without relying on an instruction manual.

  Hereinafter, an optical disc apparatus according to an embodiment of the present invention will be described.

FIG. 1 is a block diagram showing a main configuration of an optical disc apparatus according to an embodiment of the present invention.
The optical disc apparatus 1 is a so-called DVD recorder, and includes a control unit 4 that controls the operation of each part of the apparatus main body 1 and a pickup head 2 (hereinafter referred to as a PU head 2) that records and reads data on the optical disc 100. A recording / playback unit 3 such as an RF amplifier, an operation unit 5 provided with a recording key or a selection key such as a recording key, a display unit 7 for displaying information, a storage unit 6 for storing data, and audio data A D / A converter 11 that converts the video data into an analog playback audio signal, a video processing unit 13 that converts the video data into an analog playback video signal, and a composite video in which the OSD image is superimposed on the video based on the decoded video signal An OSD processing unit 12 that generates a signal, a receiving unit 10 that receives a TV broadcast signal and acquires AV (audio visual) data, and mounts an optical disc 100 And a tray 102.
The optical disc 100 is set on the tray 102, and is, for example, a DVD-R, a DVD-RW, or a DVD-RAM. DVD + R or DVD + RW is not exemplified because it does not support CPRM as of 2005, and is not intended to be excluded.

The PU head 2 includes a laser diode (LD), a collimator lens, a beam splitter, an objective lens, a photodetector, a thread motor, and a biaxial actuator (not shown).
The PU head 2 is movably attached to an axis extending in the radial direction of the optical disc 100. The sled motor moves the PU head 2 in the radial direction of the optical disc 100.
The LD is a light source that outputs laser light, and the photodetector is formed of a plurality of light receiving elements, and detects reflected light from the optical disc 100. In the photodetector, for example, the light receiving area is divided into four substantially equally, and four light receiving areas are formed.
The objective lens adjusts the irradiation position of the laser beam on the optical disc 100. The biaxial actuator moves the objective lens in the direction in which the objective lens is brought into contact with or separated from the optical disc 100 and in the radial direction of the optical disc 100.

First, the operation during reproduction will be described.
The PU head 2 irradiates the optical disc 100 with a laser beam having a reading power, and detects the reflected light from the optical disc 100 with a photodetector. Thereby, the information recorded on the optical disc 100 is optically read.
The recording / reproducing unit 3 generates an RF signal based on the outputs of the plurality of light receiving elements in the PU head 2 and amplifies the RF signal. Then, the recording / reproducing unit 3 processes the RF signal to extract and decode data such as video and audio. Here, the extracted video and audio data is encoded by, for example, MPEG. Then, the recording / reproducing unit 3 outputs the audio data to the D / A converter 11 and the video data to the OSD processing unit 12 while synchronizing both data.
The D / A converter 11 converts the expanded audio data into an analog reproduction audio signal, and outputs the reproduction audio signal to the external television 101.
If the television 101 is digital compatible, it may be output digitally.

Based on the control signal transmitted from the control unit 4, the OSD processing unit 12 generates a composite video obtained by superimposing an OSD image on a video based on the video data and directly outputting the video data. The operation is switched between outputting composite video data and outputting OSD image data of only the OSD image. Only when the OSD image data of only the OSD image is output, the operation is performed when the OSD image is not reproduced.
The OSD processing unit 12 generates an OSD image using the OSD data stored in the storage unit 6. This OSD image is a troubleshooting for OSD display on the television 101 in FIG. 3 s8, s11, or s15, which will be described later, a copy-prohibited character in s16, and a character in a disk set in s17.
The video processing unit 13 converts the input video data, OSD image data, or synthesized video data into an analog playback video signal and outputs the analog playback video signal to the external television 101.
If the television 101 is digital compatible, it may be output digitally.

  A television 101 is connected to the D / A converter 11 and the video processing unit 13, and the user can use the television 101 to output video based on the video signals output from the D / A converter 11 and the video processing unit 13, and Audio based on the audio signal can be viewed.

Next, the operation during recording will be described.
The receiving unit 10 is a so-called tuner, for example, with a built-in B-CAS card.
The receiving unit 10 extracts a TV broadcast signal of a channel selected from an antenna 20 that receives digital TV broadcast, BS digital TV broadcast, and the like, separates the extracted data into content data and management information, and Are output to the recording / reproducing unit 3 and the management information is output to the control unit 4. The content is, for example, a TV program.
Although the antenna 20 is provided, it is not intended to exclude the Internet.

The recording / reproducing unit 3 encodes the input data (for example, in MPEG) and outputs a digital signal to the PU head 2. The input data includes AV (audio visual) data and is encoded after being separated.
When a digital signal is input from the recording / reproducing unit 3, the PU head 2 controls a laser beam having a recording power in accordance with the digital signal and irradiates the recording surface of the optical disc 100.
The OSD display is also performed during recording.
In this case, the OSD processing unit 12 outputs OSD image data of only the OSD image, and the video processing unit 13 converts it into an analog playback video signal and outputs it to the external television 101.

The operation unit 5 is used by a user to input various commands (commands) to the optical disc apparatus 1, and is provided with a plurality of keys including a setting key, a response key, and a selection key. A command input by the user to the optical disc apparatus 1 is transmitted to the control unit 4.
The setting key is a key used when setting the recording format. The recording format is, for example, a DVD-Video format or a -VR format. With this setting key, a desired recording format can be set from among several recording formats. The set recording format is stored in the storage unit 6.
The response key is a key for responding to troubleshooting.
The selection key is a key for selecting several types of trick play, for example, a reproduction key, a recording key, a skip key, a fast-forward key, or a repeat key.
The storage unit 6 is composed of, for example, an EEPROM, and stores a main control program for the apparatus main body 1. Further, the storage unit 6 stores the OSD data that is the basis of the above-described troubleshooting, the copy-inhibited characters in s16, and the characters in the disk set in s17.

  In addition, the storage unit 6 stores a recording format set by a setting key of the operation unit 5. The mode of the main control program changes depending on the recording format that is set. Thus, when data is recorded on the optical disc 100, data is recorded in the set recording format.

  The display unit 7 displays the time, the setting state of the optical disc apparatus 1, the above-described troubleshooting, the copy-prohibited characters in s16, the characters in the disc set in s17, and the like.

The control unit 4 is composed of, for example, a microcomputer, and controls each unit of the optical disc apparatus 1 based on the main control program in accordance with a command input to the optical disc apparatus 1 from a user.
The control unit 4 detects copy control information from the management information input from the receiving unit 10. Here, as a premise, the apparatus main body 1 has a mechanism that reacts correctly to the copy control information. In addition, the control unit 4 decodes the management information and acquires an EPG. This EPG acquisition may be set in advance to be performed at a predetermined time. The predetermined time is, for example, immediately before ending recording of a broadcast program (for example, 5 minutes before the end) every time 30 minutes have elapsed since the start of recording of the broadcast program.
The control unit 4 updates and records the acquired EPG in the storage unit 6. That is, if there is already an EPG, that is, if there is a previous EPG, the control unit 4 erases the previous EPG and records the acquired EPG in the storage unit 6.

  In an actual optical disc apparatus, tracking servo control for adjusting the laser beam irradiation position to the center of the track of the optical disc at the time of reading or recording, focus servo control for adjusting the focal position of the laser beam to the recording surface of the optical disc, Although not shown in the embodiment of the present invention.

  Here, the display unit 7 and the television 101 correspond to the “display” of the present invention. The control unit 4, the tray 102, the PU head 2, and the recording / reproducing unit 3 correspond to the “recording reading unit” of the present invention. The control unit 4, the OSD processing unit 12, and the video processing unit 13 correspond to the “display unit” of the present invention. The antenna 20 corresponds to the “input source” of the present invention.

  FIG. 2 is a diagram showing a recording area of the optical disc. The recording area of the optical disc is divided into PCA, RMA, lead-in area, data area, and lead-out area from the inner periphery to the outer periphery.

The PCA is an area where laser power calibration can be performed. There are three levels of laser power: recording power, reading power, and erasing power.
The RMA is an area in which recording management information necessary for the optical disc apparatus 1 is recorded.
The lead-in area is an area where TOC data of data recorded in the data area on the optical disc is recorded. This TOC data includes information about whether the stored data has been finalized, the date when the data was stored, the title information of the stored data, the address information of the stored data on the optical disk, and the like. .
Information on whether or not CPRM (Content Protection for Recordable Media) is supported is recorded in a control data area in this lead-in area or an NBCA (Narrow Burst Cutting Area) code area in this lead-in area.

The data area is an area where stored data is recorded.
The lead-out area is an area that is created when stored data is finalized. This finalization is a process for arranging recorded information so as to be compatible with other apparatuses. By performing finalization, the optical disk can be reproduced in other apparatuses.

FIG. 3 is a flowchart showing an operation performed by the control unit when the recording key is pressed in the optical disc apparatus according to the embodiment of the present invention. The main routine shown in FIG. 3 is a routine related to (preinstalled in) the main control program, and is called from the main control program when the recording key is pressed.
When the recording key is pressed, it becomes a trigger, and the control unit 4 executes the main routine shown in FIG. 3 and performs the following operations.

  First, the control unit 4 refers to the latest EPG stored in the storage unit 6 and acquires copy control information of a TV program to be recorded, which is input from the antenna 20 (s1). Here, as a premise, the apparatus main body 1 has a mechanism that reacts correctly to the copy control information.

  Next, the control unit 4 causes the PU head 2 to check whether an optical disk is set in the apparatus main body 1 (s2). This determination is made, for example, by irradiating the PU head 2 with laser light and whether the PU head 2 can detect the reflected light. If the PU head 2 can detect the reflected light, the recording / reproducing unit 3 converts the reflected light into an electric signal and transfers it to the control unit 4. The control unit 4 can determine that the optical disc is set in the apparatus main body 1 when the electric signal is transferred.

  If it is determined that no optical disc is set in the apparatus main body 1, the control unit 4 displays the characters of the disc set on the OSD processing unit 12 and the display unit 7 (s17), and ends this processing. The character of the disc set is, for example, “Please set disc”.

On the other hand, when determining that the optical disc is set in the apparatus main body 1, the control unit 4 refers to the copy control information acquired in s1, and determines whether or not the TV program to be recorded is copy-free (s3). . The following description will be continued assuming that the optical disc 100 is set in the apparatus main body 1.
When determining that the TV program to be recorded is copy-free, the control unit 4 instructs each unit of the apparatus main body 1 to perform recording (s7), and ends this process. When the TV program is copy-free, there is no problem with copy-once, so the control unit 4 processes as usual.

On the other hand, when determining that the TV program to be recorded is not copy-free, the control unit 4 refers to the copy control information acquired in s1, and determines whether or not the TV program is copy-once (s4).
If it is determined that the TV program is not copy-once, that is, if the TV program is determined to be copy-prohibited, the control unit 4 causes the OSD processing unit 12 and the display unit 7 to display a copy-prohibited character (s16). The process ends. Then, the OSD processing unit 12 generates an OSD image of copy-prohibited characters, and the copy-prohibited characters are displayed on the television 101. When the TV program is copy-prohibited, the trouble caused by copy-once does not matter, so the control unit 4 processes as usual. The copy prohibition character is, for example, “TV program selected for recording is copy prohibited”.

  On the other hand, if it is determined in s4 that the TV program to be recorded is copy-once, the control unit 4 determines whether or not the optical disc 100 set in the apparatus main body 1 is compatible with CPRM (s5). This determination is made by causing the PU head 2 to read the lead-in area of the optical disc 100 (see FIG. 2). The control unit 4 acquires and reads information read by the PU head 2 via the recording / reproducing unit 3.

If it is determined that the optical disc 100 does not support CPRM, the control unit 4 displays troubleshooting on the OSD processing unit 12 and the display unit 7 (s11). Then, the OSD processing unit 12 generates an OSD image for troubleshooting, and the troubleshooting is displayed on the television 101.
The troubleshooting in step s11 is a disk replacement request screen, which prompts the user to replace the optical disk 100 set in the apparatus main body 1 with another optical disk compatible with copy once. The troubleshooting of s11 is, for example, “Recording is not possible unless the disc is replaced with another copy-once optical disc. Do you want to replace the optical disc?”.
Even if the user does not look at the instruction manual, the user sees this troubleshooting, and grasps that recording cannot be performed unless the optical disk is compatible with another copy-once.
As described above, there is an effect that it is possible to easily show the user how to solve the trouble with the copy-once without relying on the instruction manual.

  The control unit 4 determines whether or not the replacement of the optical disk 100 set in the apparatus main body 1 has been OK by the response key of the operation unit 5 (s12).

If it is determined that the replacement of the optical disk 100 set in the apparatus main body 1 is OK, the control unit 4 ejects the optical disk 100 onto the tray 102 (s13). Then, the tray 102 slides, and the user can remove the optical disc 100.
As described above, there is an effect that the user can change the optical disk quickly and easily.
In this embodiment, the tray 102 is ejected for the sake of simple explanation. However, if the optical disc apparatus is a slot-in mechanical system, the optical disc 100 is ejected without using the tray 102.

  The control unit 4 waits for the optical disc to be set in the apparatus main body 1 (s14), returns to s5, and continues the processing. The determination of s14 is performed by a method of causing the PU head 2 to check whether an optical disk is set in the apparatus main body 1, as in s2.

  On the other hand, if it is determined in s12 that the replacement of the optical disc 100 set in the apparatus main body 1 has been rejected, the control unit 4 causes the OSD processing unit 12 and the display unit 7 to display troubleshooting (s15), and this process is performed. finish. Then, the OSD processing unit 12 generates an OSD image for troubleshooting, and the troubleshooting is displayed on the television 101. The troubleshooting in s15 is a cancel screen, for example, “Recording input has been canceled.”

On the other hand, when it is determined in s5 that the optical disc 100 is CPRM compatible, the control unit 4 determines whether or not the CPRM compatible optical disc 100 can be recorded according to the recording format currently set in the apparatus main body 1 (s6).
As of 2005, the recordable recording format is, for example, the -VR format. The recording format that cannot be recorded is, for example, the DVD-Video format.

  If it is determined that recording is possible with the currently set recording format, the control unit 4 instructs each unit of the apparatus main body 1 to perform recording (s7), and ends this process. Then, the TV program is encrypted and recorded on the optical disc so as to be a copy once. In s7, it is assumed that the optical disc is compatible with copy once and the recording format is appropriate.

On the other hand, if it is determined that recording is not possible due to the currently set recording format, the control unit 4 displays troubleshooting on the OSD processing unit 12 and the display unit 7 (s8). Then, the OSD processing unit 12 generates an OSD image for troubleshooting, and the troubleshooting is displayed on the television 101. The troubleshooting in s8 is a recording format setting change request screen, which prompts the user to change the currently set recording format to a recordable recording format. The troubleshooting of s8 is, for example, “Do you want to change the currently set DVD-Video format to a recordable-VR format?”.
As described above, there is an effect that it is possible to easily show the user how to solve the trouble with copy-once without relying on the instruction manual.

  The control unit 4 determines whether or not an input for changing the currently set recording format to a recordable recording format has been made by the setting key or the response key of the operation unit 5 (s9).

  If it is determined that there is no input for changing the currently set recording format to a recordable recording format, the control unit 4 proceeds to s11 and continues the processing. The negative determination in s9 is based on the assumption that a certain time has elapsed, or that there is a response that the response key does not change to the -VR format.

  On the other hand, if it is determined in s9 that an input for changing the currently set recording format to a recordable recording format has been made, the control unit 4 updates the current recording format into a recordable recording format in the storage unit 6 and records the update. (Set) (s10), proceed to s7 and continue the process. The s9 determination affirmation assumes a case where a response to change to the -VR format is received by a response key within a certain time.

1 is a block diagram showing a main configuration of an optical disc apparatus according to an embodiment of the present invention. Diagram showing recording area of optical disc 7 is a flowchart showing an operation performed by the control unit when a recording key is pressed in the optical disc apparatus according to the embodiment of the present invention.

Explanation of symbols

1-optical disk device 2-PU head 3-recording / reproducing unit 4-control unit 5-operation unit 6-storage unit 7-display unit 10-receiving unit 11-D / A converter 12-OSD processing unit 13-video processing unit 100 -Optical disc 101-Television 102-Tray

Claims (4)

In an optical disc apparatus provided with a recording / reading means for irradiating an optical disc set in the apparatus main body with a laser beam from a pickup head and recording or reading data on the optical disc.
When recording the content input from the input source, the recording / reading unit refers to the copy control information of the content input together with the content from the input source and records the content only once. It is determined whether or not the copy-once is permitted.If the content is copy-once, it is determined whether or not the optical disk set in the apparatus body is an optical disk compatible with copy-once.
When the recording / reading means determines that the optical disk set in the apparatus main body is not a copy-once optical disk, troubleshooting is displayed to prompt the user to replace the optical disk set in the apparatus main body with another copy-once optical disk. Display means for displaying on the vessel,
The recording / reading means ejects the optical disc set in the apparatus main body when the display means displays the troubleshooting on a display.
When the recording / reading unit determines that the optical disk set in the apparatus main body is a copy-once optical disk, the recording / reading unit determines whether the copy-once optical disk can be recorded according to a recording format currently set in the apparatus main body. And
When the recording / reading means determines that the recording means is not recordable according to the currently set recording format, the display means troubleshoots to change the currently set recording format to a recordable recording format. Is displayed on the display. In an optical disc apparatus provided with a recording / reading means for irradiating an optical disc set in the apparatus main body with a laser beam from a pickup head and recording or reading data on the optical disc.
When recording the content input from the input source, the recording / reading unit refers to the copy control information of the content input together with the content from the input source and records the content only once. It is determined whether or not the copy-once is permitted.If the content is copy-once, it is determined whether or not the optical disk set in the apparatus body is an optical disk compatible with copy-once.
When the recording / reading means determines that the optical disk set in the apparatus main body is not a copy-once optical disk, troubleshooting is displayed to prompt the user to replace the optical disk set in the apparatus main body with another copy-once optical disk. An optical disc device comprising display means for displaying on a device. When the recording / reading unit determines that the optical disk set in the apparatus main body is a copy-once optical disk, the recording / reading unit determines whether the copy-once optical disk can be recorded according to a recording format currently set in the apparatus main body. And
When the recording / reading means determines that the recording means is not recordable according to the currently set recording format, the display means troubleshoots to change the currently set recording format to a recordable recording format. The optical disk apparatus according to claim 2, wherein:   3. The optical disc apparatus according to claim 2, wherein the recording / reading unit ejects the optical disc set in the apparatus main body when the display unit displays the troubleshooting on a display.

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