JP2004348917A - Optical disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to easily set various recording/reproducing modes in an optical disk device. <P>SOLUTION: A master/slave setting pin is provided in the backside of this optical disk device 1. This pin is short-circuited by a strap to change to a customize enable state. A system controller 32 detects the pint short-circuiting to change to the customizable state, then changes a mode according to the number of times of operating an eject key, and identifies each mode at the time of mode selection by changing the display states of a write LED 1c and a read LED 1d disposed on the front of the optical disk device 1 among OFF, blinking and ON. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an optical disk device, and more particularly, to a mode setting using an eject operation key.
[0002]
[Prior art]
Hitherto, a configuration has been proposed in which a manually operable key is provided in a CD drive or the like to adjust the rotation speed, or the rotation speed is adjusted using an eject operation key.
[0003]
For example, in the related art described below, it is described that a manually operable key is provided to adjust the rotation speed, and that the rotation speed adjustment function and the eject function are used in combination according to the pressing time of the eject operation key. .
[0004]
[Patent Document 1]
Japanese Utility Model Registration No. 3084075
[Problems to be solved by the invention]
Most optical disk devices are provided with an eject operation key. Therefore, it is effective to set a recording / reproduction mode such as a rotation speed using the eject operation key. However, user needs have been diversified in parallel with the recent advancement of optical disk functions, and users often want to customize the recording / playback characteristics by setting more diverse and detailed characteristics. A technology that can be easily set when customizing is desired.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide an optical disk device that allows a user to easily set a desired recording / reproducing mode.
[0007]
[Means for Solving the Problems]
The present invention relates to an optical disc apparatus comprising: an eject key for ejecting a tray for carrying an optical disc; recording state display means for displaying a recording state of the optical disc; and reproduction state display means for displaying a reproduction state 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 according to the number of times of operation of the eject key is displayed by the recording state display means and the reproduction state display means. Control means for displaying when the mode changes. In the present invention, a plurality of recording / reproducing modes are set by the number of times of operation 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 a mode while visually recognizing the display forms of the recording state display means and the reproduction state display means.
[0008]
In the present invention, a pin for switching between master and slave is provided, and the control means sets a recording / reproducing mode of the optical disc by detecting an operation of the eject key when the pin is in a short-circuit state. It is preferable that a setting mode corresponding to the number of times of operation of the eject key is displayed by changing a display mode of the recording state display means and the reproduction state display means.
[0009]
Further, it is preferable that the control means sets a different mode according to a time period from the detection of the short circuit of the pin to the operation of the eject key.
[0010]
A detecting unit that detects whether or not the optical disc is mounted on the tray; and the control unit performs a short-circuit of the pin and an operation of an eject key when the optical disc is not mounted on the tray. It is preferable to set the recording / reproducing mode of the optical disk 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 transporting 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 / reproducing mode when the eject key is operated when the pin is in a short-circuit state, wherein the recording / reproducing mode is set according to the number of times the eject key is operated. A controller that changes the type of the mode and changes the write LED and the read LED between three states of OFF, blinking, and ON in accordance with the change in the type of the recording / reproducing mode. .
[0013]
The controller blinks the write LED and the read LED for a predetermined time after the pin is short-circuited, and operates the eject key during the blink period and when the eject key is operated after the blink. 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, determines whether the eject key is short-pressed or long-pressed, and changes the type of the recording / reproducing mode according to the number of short-press operations of the eject key. The type of the recording / reproducing mode may be set by long-pressing the key.
[0015]
BEST MODE FOR CARRYING OUT 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 device 1 according to the present embodiment. An optical disk 10 such as a CD or DVD is mounted on a tray and is rotated by a spindle motor (SPM) 12. The spindle motor SPM12 is driven by the driver 14, and the driver 14 is servo-controlled by the servo processor 30 so as to have a desired rotation speed. The optical disk 10 is discharged to the outside of the apparatus by a tray discharge mechanism (not shown) or drawn into the apparatus.
[0017]
The optical pickup 16 includes a laser diode (LD) for irradiating the optical disc 10 with laser light and a photodetector (PD) for receiving reflected light from the optical disc 10 and converting the reflected light into an electric signal, and is arranged to face the optical disc 10. . The optical pickup 16 is driven in the radial direction of the optical disk 10 by a sled motor 18, and the sled motor 18 is driven by a driver 20. The driver 20 is servo-controlled by the servo processor 30 like 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 driving current has a desired value. The APC 24 controls the drive current of the driver 22 so that the optimum recording power selected by the OPC (Optimum Power Control) executed in the test area (PCA) of the optical disk 10 is obtained. The OPC is a process in which test data is recorded on the PCA of the optical disc 10 by changing the recording power in a plurality of stages, the test data is reproduced, the signal quality is evaluated, and the recording power for obtaining a desired signal quality is selected. It is. As the signal quality, a β value, a γ value, a modulation degree, a jitter, and the like are used.
[0018]
When reproducing data recorded on the optical disk 10, a laser beam of reproducing power is emitted from the LD of the optical pickup 16, and the reflected light is converted into an electric signal by the PD and output. The 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 the generated signal 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 decode circuit 28. The address decode 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 the address signal is a wobble signal in the case of a CD-RW disc. The track of the optical disc 10 is wobbled with a modulation signal of time information indicating an absolute address of the optical disc 10, and the wobble signal is extracted from the reproduction signal. Then, the address data (ATIP) can be obtained by decoding. In the case of a DVD-RW disc, address data can be obtained by a land pre-pit method. In the case of a DVD-RAM disk, address data can be obtained by the Complementary Allocated Pit Addressing (CAPA) method, and the address data exists in a header portion recorded in a sector. Further, the RF circuit 26 supplies the reproduced RF signal to the binarization circuit 34. The binarizing circuit 34 binarizes the reproduced signal and supplies the obtained EFM signal (CD disk) or 8-16 modulated signal (DVD disk) to the encoding / decoding circuit 36. The encoding / decoding circuit 36 obtains reproduction data by EFM demodulation or 8-16 demodulation and error correction of the binarized signal, and outputs the reproduction data to a host device such as a personal computer via the interface I / F40. When outputting the reproduction data to the host device, the encoding / decoding circuit 36 temporarily stores the reproduction data in the buffer memory 38 and then outputs the data.
[0020]
When recording data 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 / F40. The encode / decode circuit 36 stores the data to be recorded in the buffer memory 38, encodes the data to be recorded, and supplies it to the write strategy circuit 42 as EFM data or 8-16 modulated 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 includes, for example, a pulse width of a leading pulse, a pulse width of a subsequent pulse, and a pulse duty in a multi-pulse. Since the recording strategy affects the recording quality, it is usually fixed to a certain optimal strategy. At the time of OPC, a recording strategy may be set together. The laser light power-modulated by the recording data is emitted from the LD of the optical pickup 16 and the data is recorded on the optical disk 10. Data recording is performed in packet units. After recording data in packet units, the optical pickup 16 reproduces the recorded data by irradiating a laser beam of reproducing power and supplies the data to the RF circuit 26. The RF circuit 26 supplies the reproduced signal to a binarization circuit 34, and the binarized EFM data or 8-16 modulated data is supplied to an encode / decode circuit 36. The encoding / decoding circuit 36 decodes the EFM data or the 8-16 modulated data, and compares the decoded data 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 the 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 a tray and a pin for setting whether to use the optical disc device 1 as a master or a slave, and the system controller 32 determines whether the pins are short-circuited. Then, it is detected whether or not the eject key has been operated, and the mode is shifted to the mode setting. Various modes are set according to the operation start time and the number of times of operation of the eject key and stored in the flash ROM 33. When the mode is set, the light LED 1c and the read LED 1d are driven in accordance with the set mode, and the current setting mode is notified to the user by the ON / OFF state of these LEDs.
[0022]
FIG. 2 shows a front view (A) and a rear view (B) of the optical disc device 1. An eject key 1b, a write LED 1c, and a read LED 1d are provided on the front of the optical disk device 1 in addition to the tray 1a. In the normal state, when the eject key 1b is operated, the tray 1a is ejected, and when the eject key 1b is operated again, the tray 1a is pulled into the apparatus. After loading the optical disk 10 on the tray 1a and pulling it into the apparatus, if the optical pickup 16 irradiates a laser beam of a reproducing power to reproduce data, the system controller 32 turns on the read LED 1d to perform reproduction. Inform the user that something is happening. When data is recorded by irradiating a laser beam having a recording power from the optical pickup 16, the system controller 32 turns on the light LED 1c to indicate to the user that recording is in progress. In the present embodiment, a total of eight modes are displayed using the write LED 1c and the read LED 1d when the mode is set, as described later. On the other hand, on the rear surface of the optical disk device 1, there are provided pins 1f for setting a master / slave 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 state where the mode can be set.
[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 shifts to the mode setting state and the timer is started (S102). This timer measures the operation start timing of the eject key 1b. Next, the system controller 32 determines whether or not the eject key 1b has been operated (S103). If the eject key 1b has been 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). If the eject key 1b is operated within a predetermined time after the pin 1f is short-circuited, the system controller 32 shifts to the setting mode of the mode I (S105). 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), both the light LED 1c and the read LED 1d are blinked, and the user can be customized. 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 both LEDs are blinking, the mode shifts to mode I, and if the eject key 1b is operated after the blinking, the mode shifts to mode II. This makes it easy to identify which mode the user has shifted to.
[0026]
Further, the distinction between the mode I and the mode II is for the sake of convenience. Actually, eight mode settings are merely divided into two groups of four modes. In the present embodiment, the mode I is mainly for setting the recording / reproducing speed, and the mode II is assigned for the setting of the function accompanying the 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 to determine whether or not the eject key 1b has been shortly pressed (for example, 150 ms) (S201). Note that this determination step can be the same determination step as S103 in FIG. The short press operation of the eject key 1b corresponds to a mode selection operation. When the eject key 1b is short-pressed, it is determined whether the eject key 1b is long-pressed (for example, 1s) (S202). The long press operation of the eject key 1b corresponds to a mode selection 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 the mode I which have been set and stored in the flash ROM 33, and returns to the default state. Return (S204).
[0028]
On the other hand, in S202, the eject key 1b is not long-pressed, but is short-pressed again to select the next mode (S205). If the long press is subsequently performed (S206), the system controller 32 turns off the light LED 1c. It is turned off, only the read LED 1d blinks (S207), and the reproduction speed of the optical disk 10 is reduced by a predetermined amount or a predetermined ratio (S208). Specifically, a command is issued to the servo processor 30 to reduce the target rotation speed, and the rotation speed of the optical disc 10 by the SPM 12 is reduced. Normally, playback is performed at the maximum speed according to the type of the optical disc 10, but this allows playback at a speed desired by the user.
[0029]
In step S206, the eject key 1b is not pressed and operated again, but is short-pressed again to select the next mode (S209). If the operation is continued and pressed (S210), the system controller 32 turns on the light LED 1c. The LED is turned on and off, and the read LED 1d is turned off (S211). The reproduction speed is reduced by a predetermined amount or a predetermined ratio only when the optical disk 10 is a DVD video, and when another optical disk is used, the reproduction speed is reproduced at the maximum speed according to the type of the disk. (S212). The reason why the reproduction speed is reduced only in the case of the DVD video is to reduce noise (wind noise) when the optical disk 10 is rotated at a high speed while watching the DVD video.
[0030]
Also, in S210, the eject key 1b is not long-pressed, but is short-pressed again to select the next mode (S213). If the long press is subsequently performed (S214), the system controller 32 outputs the light LED 1c and the light LED 1c. Both the lead LED 1d blinks (S215), and the recording speed is reduced by a predetermined amount or a predetermined ratio (S216). Specifically, similarly to the reproduction speed reduction, the servo processor 30 is instructed to decrease the target rotation speed, and the rotation speed of the optical disc 10 by the SPM 12 is reduced. Normally, data is recorded at the maximum speed according to the type of the optical disk 10, but this allows recording at a speed desired by the user.
[0031]
The selection is determined by a long press of the eject key 1b. When the long press is detected, the system controller 32 blinks both the write LED 1c and the read LED 1d for a predetermined time (for example, 5 seconds) and the selection is accepted. May be notified to the user, and after a lapse of a predetermined time (for example, 5 seconds), both LEDs are turned on to notify that the mode is actually 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-pressing operation when the eject key 1b is operated again during the blinking period of the two LEDs.
[0032]
As described above, 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. Assuming that the display states of the LEDs 1c and 1d are OFF = "0" and blinking = "1", the relationship between the number of operations (the number of short presses) of the eject key 1b, the display state, and the mode is as follows.
[0033]
Number of operations = 1 time:
(Write LED, Read LED) = (0, 0) → Number of parameter clear operations = 2 times:
(Write LED, read LED) = (0, 1) → number of operations for lowering the reproduction speed = 3 times:
(Write LED, read LED) = (1, 0) → DVD video only, the number of operations for lowering the reproduction speed = 4 times:
(Write LED, Read LED) = (1, 1) → The mode in which the recording speed is set lower 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 below by taking as an example the case where only the playback speed of the DVD video is reduced.
[0035]
(1) The power of the optical disk device 1 is turned on.
[0036]
(2) The user inserts the strap 50 into the pin 1f to short-circuit 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 the mode I.
[0040]
(6) The user short-presses the eject key 1b three times in total, and then long-presses.
[0041]
(7) The system controller 32 detects three short presses and a long press of the eject key 1b, selects the DVD video reproduction 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 DVD video playback 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 has been short-pressed (for example, 150 ms) (S301). This determination step may be the same determination step as S103 in FIG. When the eject key 1b is short-pressed, it is determined whether the eject key 1b is long-pressed (for example, 1 s) (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 the 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, in S302, the eject key 1b is not long-pressed, but is short-pressed again to select the next mode (S305). If the long press is subsequently performed (S306), the system controller 32 turns off the light LED 1c. It is turned off, and only the read LED 1d is turned on (lit) (S307), and the type of DMA (direct memory access) is determined (S308). Specifically, it is ON / OFF of the multi-word DMA.
[0045]
In step S306, the eject key 1b is not pressed and operated again, but is short-pressed again to select the next mode (S309). If the operation is continued and pressed (S310), the system controller 32 turns on the light LED 1c. The LED is turned on and the lead LED 1d is turned off (S311), and ON / OFF of the safe mode is set (S312). The safe mode is a mode in which the tray is not automatically pulled in when the power is turned on.
[0046]
Further, in S310, the eject key 1b is not pressed and operated again, but is short-pressed again to select the next mode (S313). If the long press operation is performed subsequently (S314), the system controller 32 outputs the light LED 1c and the light LED 1c. Both the lead LEDs 1d are turned on (S315), and the discharge speed of the tray is reduced by a predetermined amount or a predetermined ratio (S316). This is because, for example, in the case of an 8 cm disk, if the tray is ejected at the same speed as the 12 cm disk, the disk may fly out.
[0047]
Also in the mode II, 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. When the display states of the LEDs 1c and 1d are OFF = “0” and ON = “1”, the relationship between the number of operations (the 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) → Number of parameter clear operations = 2 times:
(Write LED, Read LED) = (0, 1) → Number of DMA type setting operations = 3 times:
(Write LED, Read LED) = (1, 0) → Number of safe mode setting operations = 4 times:
(Write LED, Read LED) = (1, 1) → Tray speed reduction mode is stored in the flash ROM 33 by the system controller 32.
[0049]
When the user removes the strap 50 and releases the short-circuit state of the pin 1f after setting in the mode I or the mode II, the system controller 32 shifts from the customizable state to the normal operation state, and the eject key 1b is operated. , A tray discharge / pull-in operation is executed.
[0050]
As described above, in the present embodiment, a total of eight modes can be set according to the operation timing and the number of operations of the eject key 1b. By changing the display state of the two LEDs 1c and 1d, these eight modes can be mutually set. Can be identified.
[0051]
Further, in the present embodiment, the mode I or the mode II is identified according to the time from the short-circuiting of the pin 1f to the operation of the eject key 1b, and the short-circuit of the pin 1f is detected to determine the mode. During the time, both the write LED 1c and the read LED 1d are blinked to notify the user of the setting periods of the mode I and the mode II, thereby facilitating the user's mode setting.
[0052]
Further, in the present embodiment, in Mode I, four states are displayed by turning off and blinking two LEDs, and in Mode II, four states are displayed by turning off and on two LEDs. Mode setting has been further simplified.
[0053]
In the present embodiment, a total of eight modes are merely examples, and any mode can be assigned.
[0054]
In the present embodiment, the system controller 32 shifts to the customizable state when the pin 1f is short-circuited. However, the system controller 32 shifts to the customizable state only when the optical disk 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 a tray (S401). Any optical or physical sensor can be used for this determination. When the optical disc 10 is mounted on the tray, it is not preferable to change the recording / reproducing mode. Therefore, even if the strap 50 is inserted and the pin 1f is short-circuited, the state does not shift to the customizable state. 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 same processing as in FIG. 3 is executed to shift to the customizable state by short-circuiting the pin 1f. Then, each mode is set by operating the eject key 1b.
[0056]
In the present embodiment, the parameters of the mode set by the mode I or the 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 operating system (OS) of the host device The flash ROM 33 is accessed in response to an inquiry command (identify, etc.) from the system), and if a parameter other than the default parameter is set, the optical disk device 1 recognizes that the optical disk device 1 has already been customized and responds to the inquiry command. May return a command indicating customization. Accordingly, when the type of the optical disk device 1 is displayed on the display, the host device can display that the type is not a standard optical disk device but a customized device. An example of the display is that “DV ***-SP” is displayed when the default state is “DV ***”. Indicates that “SP” 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. Further, the user can easily identify the mode to be currently set from each other.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an optical disk device.
FIG. 2 is a front view and a rear view of the optical disk device.
FIG. 3 is an overall processing flowchart of the embodiment.
FIG. 4 is a detailed flowchart of mode I.
FIG. 5 is a detailed flowchart of a mode II.
FIG. 6 is a flowchart of another overall process 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 (8)

An eject key for ejecting a tray for carrying an optical disc;
Recording state display means for displaying a recording state of the optical disc;
Playback state display means for displaying a playback state 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 according to the number of times of operation of the eject key is changed to the change of the display mode of the recording state display means and the reproduction state display means. Control means for displaying in the
An optical disk device comprising: The device of claim 1,
A pin for switching between master / slave,
Wherein 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 sets a setting mode according to the number of times the eject key is operated. An optical disk device which displays the information by changing the display mode of the recording state display means and the reproduction state display means. The device according to claim 2,
The optical disc apparatus according to claim 1, wherein the control unit sets a different mode according to a time from when the pin is short-circuited to when the eject key is operated. The device according to claim 2,
Detecting means for detecting whether an optical disc is mounted on the tray,
Wherein the control means sets a recording / reproducing mode of the optical disk by detecting a short circuit of the pin and an operation of an eject key when the optical disk is not mounted on the tray. apparatus. The device of claim 1,
The optical disk device, 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 a tray for carrying an optical disc;
A light LED indicating that data is being recorded on the optical disc;
A read LED indicating that data is being reproduced from the optical disc,
A pin for switching between master / slave,
A controller for setting a recording / reproducing mode when the eject key is operated when the pin is in a short-circuit state, and changing a type of the recording / reproducing mode in accordance with the number of times the eject key is operated, A controller that changes the write LED and the read LED between three states of OFF, blinking, and ON in accordance with a change in the type of the recording / reproducing mode;
An optical disk device comprising: The device according to claim 6,
The controller blinks the write LED and the read LED for a predetermined time after the pin is short-circuited, and operates the eject key during the blink period and when the eject key is operated after the blink. An optical disc device wherein the OFF, blinking, and ON states are changed depending on the case. The device according to claim 6,
The controller detects the operation time of the eject key to determine whether the eject key is short-pressed or long-pressed, and changes the type of the recording / playback mode according to the number of short-press operations of the eject key, An optical disc device wherein the type of the recording / reproducing mode is set by a long press operation.

Images