JP4192678B2 - Optical disk device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical disc apparatus, and more particularly to mode setting using an eject operation key.
[0002]
[Prior art]
Conventionally, a configuration has been proposed in which a manually operable key is provided in a CD drive or the like to adjust the rotational speed, or the rotational speed is adjusted using an eject operation key.
[0003]
For example, the following prior art describes that a manually operable key is provided to adjust the rotation speed, and the rotation speed adjustment function and the ejection function are combined according to the pressing time of the ejection operation key. .
[0004]
[Patent Document 1]
Utility Model Registration No. 3084075 [0005]
[Problems to be solved by the invention]
Most optical disc apparatuses are provided with an eject operation key. Therefore, it is effective to set a recording / reproduction mode such as the number of rotations using the eject operation key. However, user needs have been diversified in parallel with the recent high performance of optical discs, and users often want to customize by setting recording / playback characteristics in more detail and with such various functions. A technique that can be easily set when customizing is desired.
[0006]
An object of the present invention is to provide an optical disc apparatus that allows a user to easily set a desired recording / reproducing mode.
[0007]
[Means for Solving the Problems]
The present invention is an optical disc apparatus having an eject key for ejecting a tray carrying an optical disc, a recording status display means for displaying the recording status of the optical disc, and a playback status display means for displaying the playback status of the optical disc. The recording / reproducing mode of the optical disc is set by detecting the operation of the eject key, and the setting mode corresponding to the number of operations of the eject key is displayed on the recording state display unit and the reproduction state display unit. And a control means for displaying by changing the mode. In the present invention, a plurality of recording / reproducing modes are set by the number of operations of the eject key, and the setting modes are distinguished from each other by the display modes of the recording state display means and the reproduction state display means. The user selects and sets the mode while viewing the display forms of the recording state display unit and the reproduction state display unit.
[0008]
In the present invention, there is provided a pin for switching between master and slave, and the control means sets the recording / reproducing mode of the optical disc by detecting the operation of the eject key when the pin is in a short circuit state. It is preferable that the setting mode corresponding to the number of operations of the eject key is displayed by changing the display mode of the recording state display means and the reproduction state display means.
[0009]
Further, it is preferable that the control means sets different modes according to the time from detection of a short circuit of the pin to operation of the eject key.
[0010]
And detecting means for detecting whether or not an optical disk is mounted on the tray, and the control means controls the short circuit of the pin and the operation of the eject key when the optical disk is not mounted on the tray. It is preferable to set the recording / reproducing mode of the optical disc by detecting.
[0011]
In the present invention, the control means may display information indicating that the recording / reproducing mode is set on a display device of a host device in a connected state.
[0012]
The present invention also provides an eject key for ejecting a tray for carrying an optical disc, a write LED indicating that data is being recorded on the optical disc, and a read LED indicating that data is being reproduced from the optical disc. And a controller for setting a recording / playback mode when the eject key is operated when the pin is in a short-circuit state, and the recording / playback is performed according to the number of times the eject key is operated. A controller for changing a mode type and changing the write LED and the read LED between three states of OFF, blinking, and ON according to the change of the type of the recording / reproducing mode. .
[0013]
The controller blinks the write LED and the read LED within a predetermined time after the pin is short-circuited, and the eject key is operated when the eject key is operated during the flashing period and after the flashing. It is preferable to change the OFF, blinking, and ON states depending on the case.
[0014]
Further, the controller detects the operation time of the eject key to determine whether it is a short press or a long press, changes the type of the recording / playback mode according to the number of short press operations of the eject key, and The type of the recording / playback mode may be set by long-pressing the key.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 shows an overall configuration diagram of an optical disc apparatus 1 according to the present embodiment. An optical disk 10 such as a CD or a DVD is mounted on a tray and rotated by a spindle motor (SPM) 12. The spindle motor SPM 12 is driven by a driver 14, and the driver 14 is servo-controlled by a servo processor 30 so as to have a desired rotation speed. The optical disk 10 is ejected to the outside of the apparatus by a tray ejection mechanism (not shown) or drawn into the apparatus.
[0017]
The optical pickup 16 includes a laser diode (LD) for irradiating the optical disk 10 with laser light and a photodetector (PD) that receives reflected light from the optical disk 10 and converts it into an electrical signal, and is disposed opposite to the optical disk 10. . The optical pickup 16 is driven in the radial direction of the optical disk 10 by a thread motor 18, and the thread motor 18 is driven by a driver 20. The driver 20 is servo-controlled by the servo processor 30 similarly to the driver 14. The LD of the optical pickup 16 is driven by a driver 22, and the driver 22 is controlled by an auto power control circuit (APC) 24 so that the drive current becomes a desired value. The APC 24 controls the drive current of the driver 22 so that the optimum recording power selected by OPC (Optimum Power Control) executed in the test area (PCA) of the optical disc 10 is obtained. The OPC is a process of recording test data on the PCA of the optical disc 10 by changing the recording power in a plurality of stages, reproducing the test data, evaluating the signal quality, and selecting a recording power that can obtain a desired signal quality. It is. For the signal quality, β value, γ value, modulation factor, jitter, etc. are used.
[0018]
When data recorded on the optical disk 10 is reproduced, a laser beam of reproduction power is irradiated from the LD of the optical pickup 16, and the reflected light is converted into an electric signal by the PD and output. A reproduction signal from the optical pickup 16 is supplied to the RF circuit 26. The RF circuit 26 generates a focus error signal and a tracking error signal from the reproduction signal and supplies them to the servo processor 30. The servo processor 30 servo-controls the optical pickup 16 based on these error signals, and maintains the optical pickup 16 in an on-focus state and an on-track state. Further, the RF circuit 26 supplies an address signal included in the reproduction signal to the address decoding circuit 28. The address decoding circuit 28 demodulates the address data of the optical disk 10 from the address signal and supplies it to the servo processor 30 and the system controller 32.
[0019]
One example of an address signal is a wobble signal in the case of a CD-RW disc. The wobble signal is extracted from a reproduction signal by wobbling the track of the optical disc 10 with a time information modulation signal indicating the absolute address of the optical disc 10. The address data (ATIP) can be obtained by decoding. In the case of a DVD-RW disc, address data can be obtained by the land pre-pit method. In the case of a DVD-RAM disc, address data can be obtained by a CAPA (Complimentary Allocated Pit Addressing) method, and the address data exists in the header portion recorded in the sector. Further, the RF circuit 26 supplies the reproduction RF signal to the binarization circuit 34. The binarization circuit 34 binarizes the reproduction signal and supplies the obtained EFM signal (CD disc) or 8-16 modulation signal (DVD disc) to the encode / decode circuit 36. The encode / decode circuit 36 obtains reproduction data by performing EFM demodulation or 8-16 demodulation and error correction on the binarized signal, and outputs the reproduction data to a host device such as a personal computer via the interface I / F 40. When the reproduction data is output to the host device, the encoding / decoding circuit 36 temporarily stores the reproduction data in the buffer memory 38 and outputs it.
[0020]
When data is recorded on the optical disk 10, data to be recorded from the host device is supplied to the encode / decode circuit 36 via the interface I / F 40. The encode / decode circuit 36 stores data to be recorded in the buffer memory 38, encodes the data to be recorded, and supplies the data to the write strategy circuit 42 as EFM data or 8-16 modulation data. The write strategy circuit 42 converts the EFM data into a multi-pulse (pulse train) according to a predetermined recording strategy and supplies it to the driver 22 as recording data. The recording strategy is composed of, for example, the pulse width of the first pulse, the pulse width of the subsequent pulse, and the pulse duty in the multi-pulse. Since the recording strategy affects the recording quality, it is usually fixed to a certain optimum strategy. A recording strategy may be set at the time of OPC. The laser light whose power is modulated by the recording data is irradiated from the LD of the optical pickup 16 and the data is recorded on the optical disk 10. Data recording is in units of packets. After recording the data in packet units, the optical pickup 16 reproduces the recorded data by irradiating the laser beam with the reproduction power, and supplies it to the RF circuit 26. The RF circuit 26 supplies the reproduction signal to the binarization circuit 34, and the binarized EFM data or 8-16 modulation data is supplied to the encode / decode circuit 36. The encode / decode circuit 36 decodes the EFM data or the 8-16 modulation data and collates it with the recording data stored in the buffer memory 38. The result of the verification is supplied to the system controller 32. The system controller 32 determines whether to continue recording data or execute a replacement process according to the result of verification.
[0021]
The system controller 32 controls the operation of each unit and sets a recording / reproducing mode such as a target rotation speed and a tray discharge speed in the servo processor 30 according to the state of the interface I / F 40. The interface I / F 40 includes an eject key for ejecting the tray and a pin for setting whether the optical disc apparatus 1 is used as a master or a slave, and the system controller 32 is short-circuited. Whether or not the eject key has been operated is detected and the mode shifts to the mode setting. Various modes are set according to the operation start time and the number of operations of the eject key and stored in the flash ROM 33. Further, when the mode is set, the write LED 1c and the read LED 1d are driven according to the set mode, and the current setting mode is notified to the user by these ON and OFF states.
[0022]
FIG. 2 shows a front view (A) and a rear view (B) of the optical disc apparatus 1. In addition to the tray 1a, an eject key 1b, a write LED 1c, and a read LED 1d are provided on the front surface of the optical disc apparatus 1. In the normal state, when the eject key 1b is operated, the tray 1a is ejected, and when operated again, the tray 1a is drawn into the apparatus. After the optical disk 10 is mounted on the tray 1a and pulled into the apparatus, when reproducing data by irradiating a laser beam of reproduction power from the optical pickup 16, the system controller 32 is reproducing by turning on the lead LED 1d. Show something to the user. When recording data by irradiating a laser beam of recording power from the optical pickup 16, the system controller 32 turns on the light LED 1c to display to the user that recording is in progress. In the present embodiment, as will be described later, a total of eight modes are displayed using the write LED 1c and the read LED 1d at the time of mode setting. On the other hand, a master / slave setting pin 1f is provided on the back surface of the optical disc apparatus 1 together with various connectors. By inserting a predetermined strap 50 into the pin 1f and short-circuiting the pin 1f, the optical disc apparatus 1 shifts to a mode setting state.
[0023]
FIG. 3 shows a processing flowchart of the present embodiment. First, the system controller 32 determines whether or not the strap 50 is inserted and the pin 1f is short-circuited (S101). When the strap 50 is inserted and the pin 1f is short-circuited, the mode is set and the timer is started (S102). This timer is for measuring the operation start timing of the eject key 1b. Next, the system controller 32 determines whether or not the eject key 1b is operated (S103). When the eject key 1b is operated, the operation start time is within a predetermined time (for example, 5 seconds) from the pin short-circuit state. It is determined whether or not there is (S104). When the eject key 1b is operated within a predetermined time after the pin 1f is short-circuited, the system controller 32 shifts to the mode I setting mode (S105), and when the eject key 1b is operated after the predetermined time has elapsed, the system The controller 32 shifts to the mode II setting mode (S106).
[0024]
When the strap 50 is inserted and the pin 1f is short-circuited, and the system controller 32 shifts to the mode setting state (customizable state), the light LED 1c and the read LED 1d can be blinked together and customized for the user. It is preferable to notify the transition to the state.
[0025]
When the strap 50 is inserted and the pin 1f is short-circuited, the system controller 32 may blink the light LED 1c and the read LED 1d for a predetermined time (for example, 5 seconds). If the eject key 1b is operated while the two LEDs are both flashing, the mode shifts to mode I, and if the eject key 1b is operated after the flashing, the mode shifts to mode II. Thereby, it can be easily identified which mode the user has shifted to.
[0026]
Further, the distinction between mode I and mode II is for convenience, and actually, the eight mode settings are simply divided into two groups of four modes. In the present embodiment, mode I is mainly a recording / reproducing speed setting, and mode II is assigned to a function setting accompanying recording / reproducing.
[0027]
FIG. 4 shows a detailed flowchart of the setting in mode I in S105 of FIG. First, the system controller 32 measures the operation time of the eject key 1b and compares it with the threshold time, and determines whether or not the eject key 1b is pressed for a short time (for example, 150 ms) (S201). This determination step may be the same determination step as S103 in FIG. The short pressing operation of the eject key 1b corresponds to a mode selection operation. If the eject key 1b has been operated for a short time, it is next determined whether or not the eject key 1b has been operated for a long time (for example, 1s) (S202). The long press operation of the eject key 1b corresponds to a mode selection determination operation. When the eject key 1b is pressed for a long time, the system controller 32 turns off both the write LED 1c and the read LED 1d (S203), clears all the parameters of mode I that have been set and stored in the flash ROM 33, and returns to the default state. Return (S204).
[0028]
On the other hand, if the eject key 1b is not operated for a long time in S202 but is operated again for a short time to select the next mode (S205), and then the long key is operated (S206), the system controller 32 indicates that the light LED 1c is Only the read LED 1d is blinked (S207), and the reproduction speed of the optical disk 10 is decreased by a predetermined amount or a predetermined ratio (S208). Specifically, the servo processor 30 is commanded to reduce the target rotation speed, and the rotation speed of the optical disk 10 by the SPM 12 is reduced. Normally, playback is performed at the maximum speed corresponding to the type of the optical disc 10, but this enables playback at a speed desired by the user.
[0029]
In S206, if the eject key 1b is not operated for a long time but is pressed again for a short time and the next mode is selected (S209), and then the long key is operated (S210), the system controller 32 turns on the light LED 1c. Flashing and the lead LED 1d is turned off (S211), the playback speed is decreased by a predetermined amount or a predetermined ratio only when the optical disk 10 is a DVD video, and when the other optical disk is used, the playback speed is played back at the maximum speed according to the type of the disk. (S212). The reason why the playback speed is reduced only in the case of DVD video is to reduce noise (wind noise) when the optical disk 10 is rotated at high speed during DVD video viewing.
[0030]
In S210, when the eject key 1b is not operated for a long time but is pressed again for a short time, the next mode is selected (S213), and then the long key is operated (S214). The lead LEDs 1d are blinked together (S215), and the recording speed is reduced by a predetermined amount or a predetermined rate (S216). Specifically, similarly to the reproduction speed reduction, the servo processor 30 is commanded to reduce the target rotation speed, and the rotation speed of the optical disk 10 by the SPM 12 is reduced. Normally, data is recorded at the maximum speed corresponding to the type of the optical disc 10, but this enables recording at a speed desired by the user.
[0031]
Although the selection is determined by long pressing the eject key 1b, the system controller 32 blinks both the light LED 1c and the read LED 1d for a predetermined time (for example, 5 seconds) when the long press is detected, and the selection is accepted. To the user, and after a predetermined time (for example, 5 seconds) has elapsed, both the two LEDs may be turned on to notify that the mode has actually been set. The system controller 32 stores the parameters in the flash ROM 33 at this timing. If the user accidentally presses and holds the eject key 1b, the system controller 32 may cancel the previous long press operation when the eject key 1b is operated again during the subsequent two LED blinking periods.
[0032]
Thus, by changing the display state of the write LED 1c and the read LED 1d when setting the mode, the user can easily identify which mode is currently set for the user. The relationship between the number of operations of the eject key 1b (number of short presses), the display state, and the mode is summarized as follows, assuming that the display states of the LEDs 1c and 1d are OFF = “0” and blinking = “1”.
[0033]
Number of operations = 1 time:
(Write LED, Read LED) = (0, 0) → Parameter clear operation count = 2 times:
(Write LED, Read LED) = (0, 1) → Reproduction speed reduction operation count = 3 times:
(Light LED, Read LED) = (1, 0) → DVD video only reproduction speed lowering operation count = 4 times:
(Write LED, Read LED) = (1, 1) → The mode in which the recording speed reduction is set is stored in the flash ROM 33 by the system controller 32.
[0034]
The operation of the user and the operation of the system controller 32 will be described as follows, taking as an example the case where only the DVD video playback speed is reduced.
[0035]
(1) The optical disk device 1 is powered on.
[0036]
(2) The user inserts the strap 50 into the pin 1f and shorts the pin 1f.
[0037]
(3) The system controller 32 detects the short-circuit state of the pin 1f and blinks the write LED 1c and the read LED 1d for 5 seconds.
[0038]
(4) The user short-presses the eject 1b while the light LED 1c and the read LED 1d are blinking.
[0039]
(5) The system controller 32 detects the operation of the eject key 1b and shifts to mode I.
[0040]
(6) The user presses the eject key 1b for a total of three times, and then presses it for a long time.
[0041]
(7) The system controller 32 detects three short presses of the eject key 1b and subsequent long press operations, selects the DVD video playback speed reduction mode, and blinks the write LED 1c and the read LED 1d for 5 seconds.
[0042]
(8) After blinking for 5 seconds, the system controller 32 turns on the write LED 1c and the read LED 1d, and writes a parameter indicating a decrease in the DVD video reproduction speed to the flash ROM 33, assuming that the mode is finally determined. If the operation of the eject key 1b is detected during the blinking for 5 seconds, the system controller 32 returns the parameter to the default value. Thereafter, the write LED 1c and the read LED 1d are turned off.
[0043]
FIG. 5 shows a detailed processing flowchart in mode II of S106 in FIG. First, the system controller 32 determines whether or not the eject key 1b is operated for a short time (for example, 150 ms) (S301). This determination step may be the same determination step as S103 in FIG. If the eject key 1b is operated for a short time, it is next determined whether or not the eject key 1b is operated for a long time (for example, 1s) (S302). When the eject key 1b is pressed for a long time, the system controller 32 turns off both the write LED 1c and the read LED 1d (S303), clears all the parameters of mode II that have been set and stored in the flash ROM 33, and returns to the default state. Return (S304).
[0044]
On the other hand, if the eject key 1b is not operated for a long time in S302 but is operated again for a short time and the next mode is selected (S305), then the system controller 32 determines that the light LED 1c is not operated. Only the lead LED 1d is turned on (lighted) (S307), and the type of DMA (direct memory access) is determined (S308). Specifically, it is ON / OFF of multiword DMA.
[0045]
In S306, if the eject key 1b is not operated for a long time but is pressed again for a short time to select the next mode (S309), and then the long key is operated (S310), the system controller 32 turns on the light LED 1c. The lead LED 1d is turned on and the lead LED 1d is turned off (S311), and the safe mode is turned on / off (S312). The safe mode is a mode in which the tray is not automatically pulled in when the power is turned on.
[0046]
In S310, when the eject key 1b is not pressed for a long time and is pressed again for a short time, the next mode is selected (S313), and then the long press is operated (S314). Both the lead LEDs 1d are turned on (S315), and the tray discharge speed is decreased by a predetermined amount or a predetermined ratio (S316). This is because, for example, in the case of an 8 cm disc, if the tray is ejected at the same speed as a 12 cm disc, the disc may be ejected.
[0047]
Also in mode II, the user can easily identify which mode is currently set for the user by changing the display state of the write LED 1c and the read LED 1d when setting the mode. When the display states of the LEDs 1c and 1d are OFF = “0” and ON = “1”, the relationship between the number of operations (number of short presses), the display state, and the mode is summarized as follows.
[0048]
Number of operations = 1 time:
(Write LED, Read LED) = (0, 0) → Parameter clear operation count = 2 times:
(Write LED, Read LED) = (0, 1) → DMA type setting operation count = 3 times:
(Write LED, Read LED) = (1,0) → Safe mode setting operation count = 4 times:
(Write LED, Read LED) = (1, 1) → The mode in which the tray speed reduction is set is stored in the flash ROM 33 by the system controller 32.
[0049]
After setting in mode I or mode II, when the user removes the strap 50 and releases the short circuit state of the pin 1f, the system controller 32 shifts from the customizable state to the normal operation state, and the eject key 1b is operated. The tray ejection / retraction operation is executed.
[0050]
As described above, in this embodiment, a total of eight modes can be set according to the operation timing and the number of operations of the eject key 1b, and by changing the display state of the two LEDs 1c and 1d, these eight modes can be set to each other. Can be identified.
[0051]
In the present embodiment, whether the mode I or the mode II is selected is identified according to the time from when the pin 1f is short-circuited until the eject key 1b is operated. During the time, both the light LED 1c and the read LED 1d are blinked to notify the user of the setting period of the mode I and the mode II, thereby facilitating the user mode setting.
[0052]
Furthermore, in this embodiment, for mode I, four states are displayed by turning off and blinking two LEDs, and for mode II, four states are displayed by turning off and on two LEDs. The mode setting is further simplified.
[0053]
In the present embodiment, a total of eight modes are merely examples, and arbitrary modes can be assigned.
[0054]
Further, in this embodiment, the system controller 32 shifts to the customizable state when the pin 1f is short-circuited, but even if the system controller 32 shifts to the customizable state only when the optical disc 10 is not mounted on the tray. Good.
[0055]
FIG. 6 shows a processing flowchart in this case. First, the system controller 32 determines whether or not the optical disk 10 is mounted on the tray (S401). Any optical or physical sensor can be used for this determination. When the optical disk 10 is mounted on the tray, it is not preferable to change the recording / reproducing mode, and even if the strap 50 is inserted and the pin 1f is in a short-circuited state, the customizable state is not entered. On the other hand, when the optical disk 10 is not mounted on the tray, it is determined that there is no problem even if the recording / reproducing mode is changed, and the process similar to that shown in FIG. Each mode is set by operating the eject key 1b.
[0056]
In the present embodiment, the mode parameters set in mode I or mode II are stored in the flash ROM 33. However, when the optical disk device 1 is connected to a host device such as a personal computer, the OS (operating system) of the host device is used. In response to an inquiry command (identify, etc.) from the system), if a parameter other than the default parameter is set, the optical disk apparatus 1 recognizes that it has already been customized, and May return a command indicating customized. Thereby, in the host device, when the type of the optical disk device 1 is displayed on the display, it can be displayed that it is not a standard optical disk device but a customized device. An example of the display is to display “DV ***-SP” when the default state is “DV ***”. “SP” indicates that it has been customized.
[0057]
【The invention's effect】
As described above, according to the present invention, a plurality of types of modes can be set. In addition, the user can easily identify the modes to be currently set from each other.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an optical disc apparatus.
FIG. 2 is a front view and a rear view of the optical disc apparatus.
FIG. 3 is an overall process flowchart of the embodiment.
FIG. 4 is a detailed flowchart of mode I.
FIG. 5 is a detailed flowchart of mode II.
FIG. 6 is another overall process flowchart of the embodiment.
[Explanation of symbols]
1 optical disk device, 1b eject key, 1c write LED, 1d read LED, 10 optical disk, 32 system controller, 33 flash ROM, 40 interface I / F.

Claims (7)

An eject key for ejecting the tray carrying the optical disc;
Recording status display means for displaying the recording status of the optical disc;
Playback status display means for displaying the playback status of the optical disc;
An optical disc device having
The recording / reproducing mode of the optical disc is set by detecting the operation of the eject key, and the setting mode corresponding to the number of operations of the eject key is changed in the display mode of the recording state display unit and the reproduction state display unit. Control means to display with,
It has a further,
A pin for switching between master and slave,
The control means sets the recording / reproducing mode of the optical disc by detecting the operation of the eject key when the pin is in a short-circuit state, and a setting mode according to the number of operations of the eject key. Is displayed by a change in display mode of the recording state display means and the reproduction state display means . The apparatus of claim 1.
The optical disk apparatus according to claim 1, wherein the control means sets a different mode according to a time from detection of a short circuit of the pin to operation of the eject key . The apparatus of claim 1 .
Detecting means for detecting whether or not an optical disc is mounted on the tray;
And the control means sets a recording / reproducing mode of the optical disc by detecting a short circuit of the pin and an operation of an eject key when the optical disc is not mounted on the tray. apparatus. The apparatus of claim 1 .
The optical disc apparatus , wherein the control means displays information indicating that the recording / reproducing mode is set on a display device of a host device in a connected state . An eject key for ejecting the tray carrying the optical disc;
A light LED indicating that data is being recorded on the optical disc;
A lead LED indicating that data is being reproduced from the optical disc;
A pin to switch between master and slave,
A controller that sets a recording / reproducing mode when the eject key is operated when the pin is in a short-circuit state, and changes a type of the recording / reproducing mode according to the number of operations of the eject key, and A controller that changes the light LED and the read LED between three states of OFF, blinking, and ON according to a change in the type of the recording / reproducing mode;
An optical disc apparatus comprising: The apparatus of claim 5 .
The controller blinks the write LED and the read LED within a predetermined time after the pin is short-circuited, and the eject key is operated when the eject key is operated during the flashing period and after the flashing. An optical disc apparatus characterized by changing the OFF, blinking, and ON states depending on the case. The apparatus of claim 5 .
The controller detects the operation time of the eject key to determine whether the press is short or long, changes the type of the recording / playback mode according to the number of short press operations of the eject key, and An optical disc apparatus, wherein the type of the recording / reproducing mode is set by a long press operation .

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