JP2008123639A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device in which damage of the optical disk is suppressed even when rewritten a plurality of the number of times. <P>SOLUTION: When video recording is started (start) (step S0), it is discriminated, as a video recording function, whether a timer recording function is selected or a normal recording function is selected (step S1). When the timer recording function is selected, data are recorded from the outer peripheral side, that is, timer recording is executed (step S3). When the normal recording function is selected in the step S1, data are recorded from the inner peripheral side, that is, normal recording is executed (step S2). The normal recording is performed from the inner peripheral side of the optical disk and the timer recording is performed from the outer peripheral side, thereby, since data are recorded not always from the inner peripheral side, but from the outer peripheral side so that even when data are often rewritten, rewriting is not localized in the inner peripheral side and risk of damage of the optical disk due to increase in recording frequency in the inner peripheral side of the optical disk can be suppressed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus having a normal recording function and a reserved recording function.

  Recordable optical disc media (hereinafter referred to as optical discs) such as DVD-R and DVD-RW have become widespread, and home DVD recorders that can easily record movies and the like on these optical discs have also become widespread.

  These optical disks have a large capacity and can record several titles of movies, TV programs, etc. for about 1 to 2 hours.

  On the other hand, in general, a recording / reproducing apparatus (optical disk apparatus) is a system in which recording is sequentially performed in a direction from the innermost side to the outer side in an area where data recording of an optical disk is possible. In this regard, it has been found that the frequency of use of the rewritable optical disc differs between the inner and outer peripheral sides when recording and deletion are repeated. That is, since the recording method is recorded in the direction from the inner circumference to the outer circumference, it has been found that the frequency of use on the inner circumference side is higher than that on the outer circumference side.

  Therefore, if recording on the inner peripheral side of the optical disk is concentrated, the optical disk is easily damaged, and the probability of breakage or damage increases.

In addition, based on the results of the invention, the present applicant conducted a prior art search for a recording / reproducing apparatus (optical disk apparatus) that performs recording on the outer peripheral side instead of the inner peripheral side. From this point of view, in References 1 and 2, for example, a recording / reproducing apparatus (optical disc) that obtains the capacity of data to be recorded, determines the recording start position after setting the outermost peripheral position as the recording end position, and records information. Apparatus).
JP 2001-23306 A Japanese Patent Laid-Open No. 2004-134002

  On the other hand, in the above cited reference, although a recording / reproducing apparatus capable of recording on the outer periphery side of the optical disk is shown from the viewpoint of power consumption or high-speed reproduction, the inner periphery of the optical disk from the viewpoint of general use frequency. There is no indication of performing recording on the outer circumference based on the fact that the side is more fragile than the outer circumference.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an optical disc apparatus that suppresses damage to an optical disc even when rewriting is performed a plurality of times.

  An optical disc apparatus according to the present invention, in an optical disc apparatus having a normal recording function and a reserved recording function, a reserved recording information calculation unit for calculating a reserved recording information amount required for recording a program reserved by the reserved recording function, and a normal recording When the normal recording function is executed in accordance with the determination result of the recording function determining unit and the recording function determining unit that determines which of the function and the reserved recording function is selected, the recording function determining unit determines whether the recording function is recorded in an unrecordable area on the inner circumference side. When the reserved recording function is executed by calculating the start unrecorded position of the recordable unrecorded area on the inner circumference side as the recording start address in order to pack and record, it is packed in the recordable unrecorded area on the outer circumference side. In order to record, the final unrecorded position of the recordable unrecorded area on the outer peripheral side is calculated as the recording end address and recorded according to the reserved recording information amount from the recording end address. Calculating a start address comprises an address setting unit for setting, from the recording start address set by the address setting unit, and a recording unit for executing one of the normal recording and reservation recording. The reserved recording information calculation unit calculates the amount of reserved recording information based on the recording time and recording quality of the program. When the recording setting function is executed, the address setting unit calculates the recording start address according to the reservation recording information amount from the recording end address, and the recorded area on the outer peripheral side is between the recording start address and the recording end address. Judge whether it is included, and if so, execute the scheduled recording function by referring to the recording end address of the recorded area in order to record a part of the scheduled recording information that can be recorded In this case, the recording start address is set, and the start unrecorded position of the recordable unrecorded area on the inner circumference side is set as the next recording start address in order to record the remaining amount of reserved recording information that can be recorded.

  An optical disc apparatus according to the present invention, in an optical disc apparatus having a normal recording function and a reserved recording function, a reserved recording information calculation unit for calculating a reserved recording information amount required for recording a program reserved by the reserved recording function, and a normal recording When the normal recording function is executed in accordance with the determination result of the recording function determining unit and the recording function determining unit that determines which of the function and the reserved recording function is selected, the recording function determining unit determines whether the recording function is recorded in an unrecordable area on the inner circumference side. When the reserved recording function is executed by calculating the start unrecorded position of the recordable unrecorded area on the inner circumference side as the recording start address in order to pack and record, it is packed in the recordable unrecorded area on the outer circumference side. In order to record, the final unrecorded position of the recordable unrecorded area on the outer peripheral side is calculated as the recording end address and recorded according to the reserved recording information amount from the recording end address Calculating a start address comprises an address setting unit for setting, from the recording start address set by the address setting unit, and a recording unit for executing one of the normal recording and reservation recording.

  Preferably, the reserved recording information calculation unit calculates the reserved recording information amount based on the recording time and recording quality of the program.

  Preferably, when executing the timer recording function, the address setting unit calculates the recording start address from the recording end address according to the timer recording information amount, and the existing setting on the outer peripheral side between the recording start address and the recording end address. It is determined whether or not the recording area is included. If so, the scheduled recording information is recorded with reference to the recording end address of the recorded area in order to record a part of the recording information amount that can be recorded. Set the recording start address when executing the function, and set the next unrecorded recording start address in the recordable area on the inner side as the next recording start address in order to record the remaining amount of reserved recording information that can be recorded To do.

  The optical disc apparatus according to the present invention is an optical disc apparatus having a normal recording function and a reserved recording function. When the reserved recording function is executed by calculating the start unrecorded position of the recordable unrecorded area on the peripheral side as the recording start address, the outer record is recorded in the recordable unrecorded area on the outer periphery side. In order to calculate the last unrecorded position of the recordable unrecorded area as a recording end address and calculate a recording start address from the recording end address according to the reserved recording information amount and execute normal recording or reserved recording. Recording is not always performed from the side, but recording is also performed from the outer side, so rewriting to the inner side is concentrated even when rewriting is performed frequently. It can be avoided that, with increasing recording frequency of the inner peripheral side of the optical disk, damage to the optical disc, it is possible to suppress the probability of damage.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 1 is a schematic block diagram of an optical disc apparatus 1 according to an embodiment of the present invention.
Referring to FIG. 1, an optical disc apparatus 1 records and / or reproduces information such as music and video on an optical disc 70 on which concentric or spiral information recording tracks of CD and DVD are formed. It is assumed that the optical disk apparatus according to the present embodiment is an optical disk apparatus capable of recording / reproducing CD and DVD compatible. The optical disk apparatus 1 according to the present embodiment performs recording and reproduction on an optical disk 70 such as a DVD-RW. In addition, the optical disc apparatus 1 has a so-called reservation recording function in which recording processing is automatically performed by presetting and storing a recording start time, a recording end time, selection of an input source (TV program channel), and the like. And, for example, it is equipped with a so-called normal recording function in which recording is continued until the recording of the selected input source is instructed by pressing a recording execution button such as a remote control and the recording stop button is pressed, for example. To do.

  The optical disc apparatus 1 includes a spindle motor 3, an optical pickup 4, a moving motor 5, a laser drive unit 6, a signal processing unit 7, a data slice signal generation unit 8, and a servo control unit (focusing control unit, tracking control). Part) 9. Further, the optical disc apparatus 1 includes a video / audio signal input / output unit 10, a remote control 11, a remote control receiving unit 12, a display unit 13, a non-volatile memory 15, and a control unit 20 for controlling each unit. I have.

  It is detected that the optical disc is inserted from a disc insertion portion (not shown) and placed on the disc tray, and the signal is input to the control portion 20. The inserted optical disk 70 is mounted on the spindle motor 3. The spindle motor 3 is driven to rotate in accordance with an instruction from the control unit 20, and is controlled so that the mounted optical disk 70 rotates at a predetermined speed.

  The optical pickup 4 irradiates light for recording and / or reproducing information on the optical disc 70, receives reflected light from the optical disc 70, converts it into an electrical signal, and outputs it to the control unit 20. Is moved in the radial direction on the optical disk 70 by the moving motor 5 composed of a linear motor.

  The optical pickup 4 condenses and irradiates the light emitted from the semiconductor laser 41 onto the optical disc 70 via the collimating lens 42, the beam splitter 43, and the objective lens 44. The reflected light from the optical disk 70 is received by the photodetector 46 through the objective lens 44, the beam splitter 43, and the condenser lens 45.

  The light emission of the semiconductor laser 41 is controlled by the laser driving unit 6 that operates in response to an instruction from the control unit 20. The light detector 46 includes a divided photodiode that divides the light receiving surface into a plurality of regions and outputs an electric signal corresponding to the light reception intensity for each light receiving surface. The output signal from the light detector 46 is a signal process. Input to part 7.

  The objective lens 44 is held by a lens holder 47, and the lens holder 47 is provided with a focusing coil 48 and a tracking coil 49. The focusing coil 48 moves the objective lens 44 in a direction perpendicular to the disk surface of the optical disk 70 by a magnetic action with a magnet (not shown). Similarly, the tracking coil 49 moves the objective lens 44 in a direction perpendicular to the recording track of the optical disc 70 in parallel with the disc surface of the optical disc 70.

  The signal processing unit 7 generates an RF signal (reflection intensity) based on the output signal from the light detector 46 and outputs it to the data slice signal generation unit 8. The data slice signal generation unit 8 generates a data slice signal obtained by binarizing the RF signal and inputs the data slice signal to the control unit 20. The control unit 20 detects pits formed on the optical disc 70 based on the data slice signal.

  Further, the signal processing unit 7 generates a focus error signal and a track error signal based on the output signal from the light detector 46 and outputs the focus error signal and the track error signal to the servo control unit 9. The focus error signal is a signal corresponding to the amount of deviation of the condensing point of the light irradiated to the optical disc 70 via the objective lens 44 from the optical disc surface, and the track error signal is the amount of deviation of the condensing point from the recording track. Is a signal corresponding to.

  The servo control unit 9 moves the objective lens 44 by controlling the current supply to the focusing coil 48 and the tracking coil 49 based on the focus error signal and the track error signal according to the instruction from the control unit 20. Servo control is performed so that the focal point is positioned on the disk surface of the optical disk 70 and on the recording track.

  The video / audio signal input / output unit 10 is connected to an external device such as a display, a speaker, and a television receiver (not shown). The video / audio signal input / output unit 10 outputs video and audio signals reproduced from the optical disc 70, An audio signal is input.

  The remote controller 11 is for operating various operations of the optical disc apparatus 1 and includes operation keys (all not shown) for operating various operations. The remote controller 11 sends a corresponding signal as an infrared signal in response to the operation of these keys. The remote control receiving unit 12 receives an infrared signal sent from the remote control 11 and outputs the signal to the control unit 20. The display unit 13 is provided on the front panel of the optical disc apparatus 1 main body, and displays the contents operated by the remote controller 11, the operation status of the optical disc apparatus 1, and the like. Specifically, switching of recording processing, reproduction processing, power on / off, program reservation using a reserved recording function, and the like. The status display of the recording process, the playback process, etc. is displayed on the display unit 13 with symbols such as “REC”, “PLAY”, etc., and the recording reservation operation using the reserved recording function is, for example, known on the display screen. Recording reservation items (reservation date, time, channel, etc.) displayed using an OSD (On Screen Display) function are operated by operating the cross key of the remote controller 11 and moving the cursor on the screen. Note that the remote controller 11 is provided with a recording execution button, a recording stop button, and the like (not shown) in order to execute the normal recording function. Of course, even if it is not provided on the remote controller 11, it can also be provided on the main body side.

  The nonvolatile memory 15 stores various programs necessary for the operation of the optical disc apparatus 1 and is also used as a storage location for calculation processing and the like in the control unit 20.

  Here, recording / reproduction of information with respect to the optical disc 70 will be described. First, information is reproduced from the optical disk 70 by irradiating the optical disk 70 with light from the semiconductor laser 41 while rotating the optical disk 70 at a predetermined speed by the spindle motor 3 and receiving the reflected light by the photodetector 46. Then, the servo control unit 9 controls the current supply to the focusing coil 48 based on the focus error signal from the signal processing unit 7 to move the objective lens 44, and the condensing point of the light from the semiconductor laser 41 is the optical disc. The focus is turned on (focus pull-in) so as to be positioned on the 70th surface. Further, the servo control unit 9 controls the current supply to the tracking coil 49 based on the track error signal from the signal processing unit 7 to move the objective lens 44 so that the light condensing point of the light from the semiconductor laser 41 is desired. The track is turned on (track pull-in) so as to be positioned on the recording track.

  After the focus on and track on, the servo controller 9 controls the current supply to the focusing coil 48 and the tracking coil 49 based on the focus error signal and the track error signal to maintain the focus on state and the track on state. Thus, focusing servo control and tracking servo control are performed.

  Then, the RF signal output from the signal processing unit 7 in this servo state is input to the data slice signal generation unit 8, and the data slice signal generated by binarizing the RF signal by the data slice signal generation unit 8 is the control unit. 20 is input. The control unit 20 detects the presence or absence of pits formed on the optical disc 70 based on the data slice signal, reads the information recorded on the optical disc 70, and reproduces the read information as a video signal or an audio signal. The video / audio signal input / output unit 10 outputs the signal to an external device.

  Similarly, information is recorded on the optical disc 70 by forming pits on the optical disc 70 with light from the semiconductor laser 41 in a focusing and tracking servo state. At this time, the video signal and the audio signal input from the video / audio signal input / output unit 10 are encoded by the control unit 20, and the semiconductor laser 41 is controlled according to the encoded data under the control of the control unit 20. Light emission is controlled. Thereby, pits corresponding to the encoded data are formed on the recording track of the optical disc 70, and video and audio information is recorded. Pits can be formed by causing the semiconductor laser 41 to emit light at a higher output than when reading information.

Next, a recording method according to the embodiment of the present invention will be described.
FIG. 2 is a flowchart illustrating an outline of recording according to the embodiment of the present invention.

  Referring to FIG. 2, when recording is started first (start) (step S0), it is determined whether the reserved recording function is selected as the recording function or the normal recording function is selected (step S0). Step S1).

  If the reserved recording function is selected in step S1, recording from the outer periphery side, that is, reserved recording is executed (step S3). Then, the process ends (END) (step S4). On the other hand, if the normal recording function is selected in step S1, recording from the inner periphery side, that is, normal recording is executed (step S2). Then, the process ends (END) (step S4).

  FIG. 3 is an example diagram when recording is performed on the optical disc 70 according to the embodiment of the present invention.

  As shown in FIG. 3, normal recording is executed from the inner periphery side of the optical disc 70, and reserved recording is executed from the outer periphery side. By executing the recording method, recording is not always performed from the inner circumference side of the optical disc but is also recorded from the outer circumference side, so even if rewriting is frequently performed, the recording is performed to the inner circumference side. Concentration of rewriting can be avoided, and it is possible to suppress the probability of breakage or damage of the optical disc accompanying an increase in recording frequency on the inner circumference side of the optical disc.

  In addition, since recording on the inner and outer circumference sides is performed on the recordable area in accordance with the recording function, recording is performed uniformly while avoiding concentration of recording on one side of the optical disk. . Therefore, the frequency of use can be dispersed to suppress the probability of damage or damage to the optical disc.

  Note that normal recording is a method in which recording is executed until the user presses the recording stop button after the user presses the recording execution button, for example, so the amount of recording information (recording capacity) cannot be known in advance. Therefore, if recording is started from the outer peripheral side, the recording start position and the recording end position cannot be determined in advance based on the recording information amount, but the reserved recording is performed by the recording date and time, recording start time, Since the recording end time, input source (TV program channel), recording image quality (recording quality), etc. are set, the amount of recording information can be calculated. It is also possible to calculate a recording start position and a recording end position and record a television program or the like packed from the outer periphery side.

FIG. 4 is a flowchart illustrating a recording process according to the embodiment of the present invention.
FIG. 5 is a block diagram illustrating a part of control unit 20 that executes the recording process according to the embodiment of the present invention.

  Referring to FIG. 5, the control unit 20 includes a main control unit 21 that controls the entire functional blocks in the control unit 20, a scheduled recording information calculation unit 22, a recording function determination unit 23, an address setting unit 24, And a recording execution unit 25. The reserved recording information calculation unit 22 calculates the amount of reserved recording information required for recording the program reserved by the reserved recording function, and outputs it to the main control unit 21. The recording function determination unit 23 determines whether the reserved recording function is selected or the normal recording function is selected in the recording process for the optical disc, and outputs it to the main control unit 21. The address setting unit 24 calculates and sets a recording start address and a recording end address when performing recording by referring to the reserved recording information amount as necessary. The recording execution unit 25 instructs execution of either normal recording or reserved recording based on at least one of the recording start address and recording end address set by the address setting unit 24 according to the determination result of the recording function determination unit 23. To do.

  Referring to FIG. 4, the operation is started (started) by the user operating remote controller 11 or the like (step S10). First, main control unit 21 performs an operation for recording processing in response to an operation performed by the user's remote controller 11 or the like. It is determined whether or not there is (step S11).

  In step S11, if it is an instruction to execute the recording process, the process proceeds to the next step S12.

  Then, it is determined whether or not there is an instruction to execute the reserved recording function (step S12). For example, it is determined by using the remote controller 11 or the like whether, for example, reserved recording of a program is set. Specifically, it is determined whether there are settings such as the recording date and time, recording start time, recording end time, input source (television program channel), and recording image quality (recording quality) designated by the user. This determination is performed by the recording function determination unit 23 described above.

  If it is determined in step S12 that there is an instruction to execute the reserved recording function based on the determination result of the recording function determining unit 23, the process proceeds to step S13, and the address setting unit 24 executes recording by the reserved recording function. In order to do this, the recording position is calculated. Specifically, the final unrecorded position of the recordable unrecorded area on the outer peripheral side of the optical disc is calculated as the recording end address in order to record from the recordable unrecorded area on the outer peripheral side. For example, if nothing is recorded in the outermost area of the recordable area of the optical disc, the last unrecorded position on the outermost circumference of the optical disc is calculated as the recording end address. Also, if the outermost area of the recordable area of the optical disc is already the recorded area, the unrecorded area is the area excluding the recorded area, so the final unrecorded position of the unrecorded area is By referring to the recording start address of the recorded area, it is possible to calculate the recording end address so as not to overlap the recorded area. Note that the recording start address and recording end address indicating the recording position of the already recorded area can be calculated by referring to a so-called address management area of the optical disc. The same applies to the following.

  Then, the recording start address is calculated from the recording end address calculated based on the reserved recording information amount (step S14).

  As for the reserved recording information amount, the reserved recording information calculation unit 22 calculates the reserved recording information amount based on the reserved recording setting of the program. The reserved recording information amount is calculated based on the recording time and recording image quality of the television program. For example, the recording image quality is generally selectable according to the high image quality mode XP, the normal mode SP, the long-time mode LP, and the like, and the reserved recording information amount changes according to the recording image quality mode.

  Next, the address setting unit 24 determines whether or not an already recorded area exists in the reserved recording execution area up to the calculated recording start address and recording end address (step S15). This determination can be easily made by referring to whether the recording start address or the recording end address of the already recorded area is included in the range from the calculated recording start address to the recording end address.

  In step S15, the address setting unit 24 sets the calculated recording start address and recording end address when it is determined that there is no recorded area in the reserved recording execution area (step S16). Then, the recording execution unit 25 executes reserved recording based on the set recording start address and recording end address (step S17).

  On the other hand, if there is no instruction to execute the reserved recording function in step S12, that is, if there is an instruction to execute the normal recording function, the process proceeds to step S22.

  In step S22, the address setting unit 24 calculates the start unrecorded position of the recordable unrecorded area on the inner circumference side of the optical disc as the recording start address in order to record from the recordable unrecorded area on the inner circumference side. (Step S22). For example, when nothing is recorded in the innermost area of the recordable area of the optical disc, the first unrecorded position on the innermost circumference of the optical disc is calculated as the recording start address. In addition, when the innermost area of the recordable area of the optical disk is already an already recorded area, the unrecorded area is an area excluding the already recorded area, so the recording start position of the unrecorded area is By referring to the recording end address of the recorded area, it is possible to calculate the recording start address so as not to overlap the recorded area.

  Then, the address setting unit 24 sets the calculated recording start address (step S23), and the recording execution unit 25 executes normal recording (step S24). In this case, since it is normal recording, it is assumed that recording is stopped by pressing a recording stop button. Since it is general normal recording, detailed description is omitted.

  On the other hand, if it is determined in step S15 that an already recorded area exists in the reserved recording execution area, the address setting unit 24 proceeds to step S20.

  Then, the address setting unit 24 sets the recording start address for the reserved recording in the same manner as in the normal recording. Specifically, the head unrecorded position of the recordable unrecorded area on the inner circumference side is calculated and set as a recording start address according to the method described in step S22 (step S20). Then, the recording execution unit 25 executes reserved recording (step S21).

FIG. 6 is a diagram for explaining various variations in the case where reserved recording is executed.
Referring to FIG. 6A, here, a case is shown in which reserved recording with the reserved recording information amount Q0 is executed. In this example, the last unrecorded position on the outermost circumference of the optical disc is calculated as the recording end address ADf, and the recording start address ADa is calculated from the recording end address ADf based on the reserved recording information amount Q0. Yes. In this example, since nothing is recorded in the outermost peripheral area, the reserved recording is executed in the reserved recording execution area from the calculated recording start address ADa to the recording end address ADf.

  Referring to FIG. 6B, here, the recorded area is recorded in the outermost area. In this example as well, a case is shown in which the scheduled recording with the scheduled recording information amount Q0 is executed. In this example, since the outermost area of the recordable area of the optical disc is a recorded area, the unrecorded area is an area excluding the recorded area, so the last unrecorded position of the unrecorded area Shows a case where the recording end address ADc is calculated as the final unrecorded position so as not to overlap the recorded area by referring to the recording start address ADc of the recorded area.

  The case where the recording start address ADb is calculated from the recording end address ADc based on the reserved recording information amount Q0 is shown.

  Then, the reserved recording is executed in the reserved recording execution area from the calculated recording start address ADb to the recording end address ADc.

  Referring to FIG. 6C, here, there is shown a case where nothing is recorded in the outermost area of the recordable area of the optical disc, but there is an already recorded area in the reserved recording execution area. Has been. As described above, since nothing is recorded in the outermost peripheral area of the optical disc, the case where the final unrecorded position is calculated as the recording end address ADf is shown. As shown in FIG. 6A, the result of calculating the recording start address shows a case where it overlaps the already recorded area. On the inner circumference side, normal recording is performed, and the recording start address ADh is set as the head unrecorded position of the unrecorded area with reference to the record end position of the recorded area.

  Referring to FIG. 6D, when it is determined that there is an existing recording area in the reserved recording execution area according to the situation of FIG. The start unrecorded position of the unrecorded area is set as the recording start address. In this example, since the innermost area of the recordable area of the optical disc is a recorded area, the unrecorded area is an area excluding the recorded area, so the top unrecorded position of the unrecorded area is It is possible to calculate the recording end address ADh of the already recorded area. Then, reserved recording is executed for the reserved recording execution area. The recording end address ADi is shown here as an example based on the reserved recording information amount Q0.

  Therefore, when the recording process according to the embodiment of the present invention is executed, the recording is not always performed from the inner peripheral side of the optical disc but the recording is also performed from the outer peripheral side, so that rewriting is frequently performed. Even so, it is possible to avoid the concentration of rewriting to the inner peripheral side, and it is possible to suppress the probability of breakage or damage of the optical disc accompanying the increase in the recording frequency on the inner peripheral side of the optical disc. .

  In addition, since recording on the inner and outer circumference sides is performed on the recordable area in accordance with the recording function, recording is performed uniformly while avoiding concentration of recording on one side of the optical disk. . Therefore, the frequency of use can be dispersed to suppress the probability of damage or damage to the optical disc.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is a schematic block diagram of an optical disc apparatus 1 according to an embodiment of the present invention. It is a flowchart figure explaining the outline of the video recording according to embodiment of this invention. FIG. 12 is an example diagram in a case where recording according to an embodiment of the present invention is executed on an optical disc 70. It is a flowchart figure explaining the video recording process according to embodiment of this invention. It is a block diagram illustrating a part inside control unit 20 that executes a recording process according to the embodiment of the present invention. It is a figure explaining the various variations in the case of performing reservation recording.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Optical disk apparatus, 3 Spindle motor, 4 Optical pick-up, 5 Moving motor, 6 Laser drive part, 7 Signal processing part, 8 Data slice signal generation part, 9 Servo control part, 10 Video / audio signal input / output part, 11 Remote control, 12 remote control receiving unit, 13 display unit, 15 non-volatile memory, 20 control unit, 21 main control unit, 22 reserved recording information calculation unit, 23 recording function determination unit, 24 address setting unit, 25 recording execution unit.

Claims (4)

In an optical disc device having a normal recording function and a scheduled recording function,
A reserved recording information calculation unit for calculating a reserved recording information amount required for recording a program reserved by the reserved recording function;
A recording function determination unit that determines which of the normal recording function and the reserved recording function is selected;
When the normal recording function is executed according to the determination result of the recording function determination unit, the recordable unrecorded area on the inner circumference side is recorded in order to be recorded in the recordable unrecorded area on the inner circumference side. When the start unrecorded position is calculated as the recording start address and the reserved recording function is executed, the recordable unrecorded area on the outer peripheral side is recorded in order to be recorded in the recordable unrecorded area on the outer peripheral side. An address setting unit for calculating and setting a recording start address according to the reserved recording information amount from the recording end address and calculating a final unrecorded position as a recording end address;
From the recording start address set by the address setting unit, a recording execution unit that executes either normal recording or reserved recording,
The reserved recording information calculation unit calculates the reserved recording information amount based on the recording time and recording quality of the program,
The address setting unit, when executing the reserved recording function, calculates the recording start address from the recording end address according to the reserved recording information amount, and between the recording start address and the recording end address. An optical disc that determines whether or not an outer-side recorded area is included and, if included, sets a start unrecorded position of the inner-side recordable unrecorded area as a recording start address apparatus. In an optical disc device having a normal recording function and a scheduled recording function,
A reserved recording information calculation unit for calculating a reserved recording information amount required for recording a program reserved by the reserved recording function;
A recording function determination unit that determines which of the normal recording function and the reserved recording function is selected;
When the normal recording function is executed according to the determination result of the recording function determination unit, the recordable unrecorded area on the inner circumference side is recorded in order to be recorded in the recordable unrecorded area on the inner circumference side. When the start unrecorded position is calculated as the recording start address and the reserved recording function is executed, the recordable unrecorded area on the outer peripheral side is recorded in order to be recorded in the recordable unrecorded area on the outer peripheral side. An address setting unit for calculating and setting a recording start address according to the reserved recording information amount from the recording end address and calculating a final unrecorded position as a recording end address;
An optical disc apparatus comprising: a recording execution unit that executes either normal recording or reserved recording from a recording start address set by the address setting unit.   The optical disc apparatus according to claim 2, wherein the reserved recording information calculation unit calculates the reserved recording information amount based on a recording time and a recording quality of a program.   The address setting unit, when executing the reserved recording function, calculates the recording start address from the recording end address according to the reserved recording information amount, and between the recording start address and the recording end address. It is determined whether or not the recorded area on the outer peripheral side is included, and if included, the head unrecorded position of the recordable unrecorded area on the inner peripheral side is set as a recording start address. Item 3. The optical disk device according to Item 2.

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