JP2731323B2 - Optical disk device and drive switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk device and a drive switching device, and more particularly to an optical disk device and a drive switching device capable of controlling the driving of an external device based on information reproduced from an optical disk.

[0002]

2. Description of the Related Art Conventionally, when explaining a product or an exhibit at an exhibition, a museum, or the like, a magnetic tape player or the like is prepared for each product or exhibit in order to make the explanation unattended. In this case, an explanation recorded on an endless magnetic tape is reproduced and output as a voice from a speaker or the like.

[0003] As one method of describing a product or an exhibit in a predetermined order, a lighting light and a magnetic tape player are provided corresponding to each product or the exhibit, and these lighting lights are provided. And a method of controlling the driving of the magnetic tape player by a timer. As another method, the description of each product or exhibit is sequentially recorded on one magnetic tape, and a predetermined signal sound is recorded after the description of each product or exhibit, and A method has been adopted in which a signal sound is detected and the illumination light is switched.

[0004]

However, if the description is reproduced using the magnetic tape player as described above, the head position of the description cannot be accessed immediately. In addition, when the timer is used to control the driving of the lighting light and the magnetic tape player corresponding to each product or exhibit, it is possible to synchronize with the description recorded on the magnetic tape. It is very difficult, and there is a problem that the starting position of the explanation is displaced and gives the viewer discomfort.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an optical disk device and a drive switching device capable of controlling the drive of an external device in synchronization with reproduction information of an optical disk that can access an arbitrary position immediately. is there.

[0006]

According to the present invention, in order to achieve the above object, according to the present invention, the position information is recorded from an optical disk on which information including position information such as track number information or absolute time information is recorded. In an optical disc apparatus having position information reproducing means for reproducing, an external device interface means having at least one switch connectable to an external device, and an on / off state of the switch corresponding to predetermined position information as a switching program pattern a pattern storage means for plurality Symbol <br/>憶, before the selection of the operator
One switching program pattern from the pattern storage means
Pattern selecting means for selecting the position information reproduced from the optical disc and the pattern information selected by the pattern selecting means.
Means for comparing position information of the selected switching program pattern, a comparison result of the comparing means and the pattern
An optical disk device is provided which includes switching means for switching the on / off state of a switch of the external device interface means based on a switching program pattern selected by the selection means .

According to a second aspect of the present invention, there is provided position information reproducing means for reproducing the position information from an optical disk on which information including position information such as track number information or absolute time information is recorded, and the position information is output to the outside. A drive switching device connected to an optical disc player having information output means, comprising: information input means for inputting the position information from the optical disc player; and at least one switch connectable to an external device. External device interface means, pattern storage means for storing a plurality of on / off states of the switches corresponding to predetermined position information as switching program patterns, and the pattern by the operator's selection.
One switching program pattern from the
Pattern selection means, position information input by the information input means, and the position information selected by the pattern selection means.
Comparing means for comparing the position information of the switched program pattern, and a comparison result of the comparing means and the pattern selection.
There is proposed a drive switching device including switching means for switching an on / off state of a switch of the external device interface means based on the switching program pattern selected by the selection means .

[0008]

According to the first aspect of the present invention, position information such as track number information or absolute time information is reproduced from the optical disc to be reproduced by the position information reproducing means. Further, the pattern storage means, on-off state of the switch corresponding to the predetermined position information in the optical disk is more stored as switching program patterns,
Switching of one selected by the operator by the pattern selection means
Program pattern is selected. Wherein a position information stored as the switching program pattern Pas
The information selected by the turn selection means is compared with the position information reproduced from the optical disk by the comparison means, and the on / off state of the switch in the external device interface means is switched by the switching means based on the comparison result.

According to a second aspect of the present invention, the information input means inputs position information such as track number information or absolute time information reproduced from the optical disc to be reproduced from the optical disc player. Further, a plurality of on / off states of the switches corresponding to the predetermined position information on the optical disc are stored as a plurality of switching program patterns by the pattern storage means, and
One switching program pattern selected by the operator
Is selected. By the pattern selecting means a location information stored as the switching program pattern
The selected information is compared by the comparing means with the position information input by the information input means. Further, based on the result of the comparison, the on / off state of the switch in the external device interface means is switched by the switching means.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, 1 is an optical disk, 2 is a general-purpose optical disk player, a disk drive unit 21, a reproduction signal processing unit 2
2. The audio output unit 23 is provided. Reference numeral 3 denotes a drive switching device, which includes an external device interface unit 31, a switch control unit 32, and an operation unit 33.

[0011] Disc drive 2 of optical disc player 2
1 is a known optical pickup 211, a spindle motor 212 for rotating the optical disk 1, a focus servo 213,
It comprises a tracking servo 214 and a rotary servo 215 for controlling the drive of the spindle motor 212. The optical pickup 212 is moved by the focus servo 213 and the tracking servo 214, reads information recorded on the optical disk 1 by an optical signal, converts the information into an analog electric signal, and outputs the analog electric signal.

The reproduction signal processing section 22 includes an analog waveform shaping circuit 221, a digital signal processing circuit 222, and a reproduction control circuit.
223, and an interface circuit 224. The analog waveform shaping circuit 221 includes an optical pickup 211
, An electric signal of reproduction information is input, the waveform is shaped, and the signal is converted into a digital signal and output. The digital signal processing circuit 222 receives the digital signal output from the analog waveform shaping circuit 221 to perform error checking and the like, converts the digital signal into a predetermined format, and outputs it. The reproduction control circuit 223 includes a CPU, a plurality of switches, and the like. The reproduction control circuit 223 inputs reproduction information converted into a digital signal output from the digital signal processing circuit 222, and outputs the sub-code information in the reproduction information via the switch. The drive control of the tracking servo 214 and the rotation servo 215 is performed based on the set reproduction instruction information, and the information is reproduced from the optical disc 1. The interface circuit 224 includes an optical link connector, and outputs the reproduced information converted into a digital signal output from the digital signal processing circuit 222 to the outside as an optical signal.

The audio output section 23 comprises a digital / analog (hereinafter, referred to as D / A) converter 231, an amplifier circuit 232, and a speaker 233. D / A converter 231
Converts the digital signal of the audio information, which has been format-converted by the digital signal processing circuit 222, into an analog signal and outputs it to the amplifier circuit 232. The amplification circuit 232 amplifies the input signal at a predetermined amplification rate and outputs the amplified signal to the speaker 233.

The external device interface section 31 of the drive switching device 3 includes a plurality of relays RL1 to RL16 (not shown) and a relay driver 311. Each of the normally open contact NO, normally closed contact NC and contact piece P of each of the relays RL1 to RL16 is an external device (not shown).
Connection terminals a1, b1, c1 to a16, b16, c16. One end of the solenoid SL of each of the relays RL1 to RL16 is grounded, and the other end is connected to a corresponding output terminal of the relay driver 311. Relay driver 31
1 has a plurality of input terminals corresponding to the plurality of output terminals, and energizes the corresponding output terminal based on an input signal to each input terminal.

The switch control section 32 comprises an information interface circuit 321, a subcode detection circuit 322, a control circuit 323 comprising a CPU, and a memory 324.
Here, the memory 324 includes a ROM, a rewritable nonvolatile memory, or a RAM backed up by a battery.

The information interface circuit 321 has an optical link connector similar to that described above, is connected to the interface circuit 224 of the optical disk player 2, and inputs information reproduced from the optical disk 1 as an optical signal. The sub-code detection circuit 322 receives the reproduction information of the optical disc 1 from the information interface circuit 321, detects the sub-code information from this information, and outputs it to the control circuit 323. The control circuit 323
While detecting the switch state of the operation unit 33 described later,
Based on the operation of this switch, a predetermined display is displayed on the display and the LED of the operation unit 33.

Further, the control circuit 323 stores the data of the track number to be registered in the memory 324 based on the operation of the switch of the operation section 33, and stores the registered track number or the memory 324 in advance. The track number set in the switching program pattern is compared with the track number in the subcode information detected by the subcode detection circuit 322, and based on the comparison result, each relay R of the external device interface unit 31 is compared.
The driving of L1 to RL16 is controlled.

As the above-mentioned switching program patterns, for example, three types shown in (a) to (c) of FIG.
324, and can be selected by the pattern selection switch 370 of the operation unit 33.

In the first switching program pattern P1 shown in FIG. 2A, the relays RL1 to RL16 having the numbers corresponding to the detected track number TN are switched to the ON state. In the second switching program pattern P2 shown in FIG. 2B, the detected track number TN
And the relay RL1 of the number following this number
RL16 are turned on. Further, FIG.
In the third switching program pattern P3 shown in (c),
The relays RL1 to RL16 of the number corresponding to the detected track number TN and the number preceding this number are switched to the ON state.

As shown in FIG. 3, the operating section 33 includes a seven-segment display 331 to 336 with a dot display arranged on an operation panel 33a, a decrement switch 337 comprising a momentary switch, an increment switch 338,
Mode changeover switch 339, control switch 340
, Light switch 341, clear switch 342, LED3
43 to 346, a monitor switch 347, relay operation setting switches 351 to 366, and a pattern selection switch 370 composed of a rotary switch. Each of the relay operation setting switches 351 to 366 has an LED 35.
1a to 366a are built-in.

Next, the operation of the embodiment having the above-described configuration will be described. In the following description, as described in the conventional example, a method of describing a plurality of exhibits in a predetermined order will be described as an example. First, a recordable optical disk 1 and a recording device for recording on the optical disk 1 are prepared, and a description of each exhibit is sequentially recorded on the optical disk 1 in a predetermined order. At this time, the recording start position of the explanation for each exhibit is confirmed by the track number TN of the optical disc 1 or the absolute time T.

In the exhibition hall, the optical disc player 2 and the drive switching device 3 are connected as described above, and the illumination lights L1 to L16 corresponding to the exhibits A1 to A16 as shown in FIG. Each of the relays RL1 to RL of the external device interface unit 31 in the middle of the power supply line of
16 is interposed. That is, the relays RL1 to RL16
Are turned on, the illumination lights L1 to L16 corresponding to the relays RL1 to RL16 are turned on.

Next, the switching state of the relay is set.
When this setting is performed manually, first, the playback control unit 223 of the optical disk player 2 sets the playback order of the explanatory notes recorded on the optical disk 1, and the optical disk 1 is operated via the operation unit 33 of the drive switching device 3. Track number TN corresponding to the start position of the description of each exhibit in 1
1 to TN16 or the absolute times T1 to T16 and the track number TN or the absolute time T of the optical disc 1 are the track numbers TN1 to TN16 or the absolute time T
The switching states of the relays RL1 to RL16 when they match with 1 to T16 are registered. Hereinafter, a setting method using the track number will be described. The setting based on the absolute time can be similarly performed.

The aforementioned track numbers TN1 to TN16
When registering the switching state of the relays RL1 to RL16, set the pattern selection switch 370 to the manual MAN position, and then press the mode switching switch 339 to set the LE.
At the same time, the program can be set in a state where D344 is lit, and the control switch 340 is pressed so that the track number can be set. By pressing the control switch 340, the setting state by the track number and the setting state by the absolute time are alternately switched. The LED 345 lights up when set by the track number, and LED when set by the absolute time.
346 lights up.

Press the control switch 340 and press the LED
With 345 lit, the relays RL1 to RL1 are turned on by the increment switch 338 or the decrement switch 337.
Track number TN1 to TN1 at the switching position of RL16
Select 6. At this time, the selected track number is displayed on the display units 331 and 332. When the setting is based on the absolute time, the absolute time is displayed on the display units 333 to 336. Further, in this state, the relay operation setting switches 351 to 366 are pressed to set the switching state of the relays RL1 to RL16.

Here, the relay operation setting switches 351 to 36
6 Press to switch each relay operation setting switch
The LEDs 351a to 366a of 351 to 366 are turned on or off.
When the LEDs 351a to 366a are turned on, it indicates that the corresponding relays RL1 to RL16 operate. Each relay RL1 is set by the relay operation setting switches 351 to 366.
After setting the operation state of RL16, the light switch 34
When 1 is pressed, the operation state of each relay RL1 to RL16 for the track number displayed on the display units 331 and 332 is stored in the memory 324. The above operation is repeated a plurality of times as necessary.

Further, when an input is made incorrectly, by pressing the clear switch 342, the designated track number and the corresponding relay setting are erased from the memory 324. To check the contents of the program recorded in the memory 324, turn on the monitor switch 347 and press the increment switch 338 or the decrement switch 337 to display the track number or the absolute time on the display units 331 to 336. At the same time, the statuses of the relays RL1 to RL16 that operate correspondingly are displayed by the LEDs 351a to 366a of the relay operation setting switches 351 to 366.

Also, here, as described above, the exhibit A1
To A16 will be sequentially described, so that the track number TN1
Relays RL1 to RL16 corresponding to
Is turned on, and the switching state of the relays RL1 to RL16 is set so as to illuminate only the exhibits A1 to A16 to be explained. With the above operation, the manual setting of the relay switching state is completed.

On the other hand, when the relay switching state is set by a switching program pattern, the reproduction control section 223 of the optical disk player 2 sets the reproduction order of the explanatory notes recorded on the optical disk 1, and then sets the pattern selection switch 370. Desired switching program pattern P1
What is necessary is just to select P3. Here, the track number T
Since the exhibits A1 to A16 corresponding to N are illuminated and the description is sequentially performed, it is only necessary to set the pattern selection switch 370 to the position of P1, and select the above-described first switching program pattern P1. Thus, the setting of the relay switching state is completed very easily.

When the drive switching operation is performed, in the above-described setting, after the mode switch 339 is pressed to turn on the LED 343 for displaying the operation state, the optical disk 1 on which the explanation of each exhibit is recorded is reproduced. The explanations of the exhibits A1 to A16 reproduced by the disk drive unit 21 and the reproduction signal processing unit 22 are output by the audio output unit 23 from the speaker 233 as audio. At this time, when the description of the first exhibit A1 is started, the track number TN of the optical disc 1 becomes equal to the previously registered track number TN1 or the track number set at the head of the switching program pattern. The relay RL1 is turned on, the light L1 is turned on, and the first
Only the exhibit A1 is illuminated. While the description of the first exhibit A1 is being performed, the light L1 is maintained in a lighting state, the description of the first exhibit A1 is completed, and the second exhibit A is completed.
When the description of No. 2 is started, that is, when the track number TN becomes equal to the registered track number TN2 or the track number set second in the switching program pattern, the relay RL1 is turned off and the relay 352 is turned off. Is turned on. Thus, the light L1 is turned off, the light L2 is turned on, and only the second exhibit A2 to be explained is illuminated. After that, the relays RL1 to RL1
The RL 16 is switched, and only the exhibits A3 to A16 to be explained are illuminated in synchronization with the explanation.

Next, the operation of the switch control section 32 will be described in more detail with reference to the control flowcharts of FIGS. The CPU of the control circuit 323 sets the variable K to 0 as an initial setting (S1), turns on the LED 344 indicating the programmable state (S2), and determines whether the mode switch 339 is turned on. (S3). As a result of this determination, the mode switch 339
Is turned on, the processing shifts to the processing of S35 described later, and the drive switching operation state is set. The mode switch 33
If 9 is not turned on, it is determined whether or not the monitor switch 347 is turned on (S4). If the result of this determination is that the monitor switch 347 is on, after one registered content in the memory 324 is displayed (S5), the increment switch 338 is displayed.
Alternatively, it is determined whether the decrement switch 337 is turned on (S6). As a result of this determination, if the increment switch 338 or the decrement switch 337 is not turned on, the process shifts to the process of S4. If the switch is turned on, the display of the registered contents is updated (S7), and the process shifts to the process of S4. .

As a result of the determination in S4, the monitor switch 34
When 7 is off, the CPU of the control circuit 323 determines whether or not the control switch 340 is turned on (S8).
When turned on, it is determined whether or not the variable K is 0 (S
9) If it is 0, the variable K is set to 1 (S10), and if it is not 0, the variable K is set to 0 (S11). After this,
It is determined whether or not the variable K is 0 (S12). If it is not 0, the process proceeds to S24 described below. Also, the variable K
Is 0, the display of the absolute time on the indicators 333 to 336 is turned off (S13), and the LED indicating the track number designation state is displayed.
After turning on 345 (S14) and displaying the track number on the indicators 331 and 332 (S15), it is determined whether the increment switch 338 or the decrement switch 337 is turned on (S16). As a result of this judgment,
When the increment switch 338 or the decrement switch 337 is turned on, the display of the track numbers on the indicators 331 and 332 is updated (S17). Thereafter, it is determined whether or not the relay operation setting switches 351 to 366 are turned on (S18). When the switches are turned on, the LEDs 351a to 366a of the turned on relay operation setting switches 351 to 366 are turned on (S19).

Next, the CPU of the control circuit 323 determines whether or not the light switch 341 has been turned on (S20). If the light switch 341 has been turned on, the relay operation corresponding to the track number displayed on the indicators 331 and 332 is performed. The state is stored in the memory 324 (S21). Thereafter, it is determined whether or not the clear switch 342 has been turned on (S22).
The track numbers indicated by 331 and 332 and the corresponding relay operation state are erased from the memory 324 (S2).
3). Thereafter, the process proceeds to the process of S3.

As a result of the determination in S12, when the control switch 340 is turned on and the variable K is set to 0, the CPU of the control circuit 323 shifts to the setting based on the absolute time. That is, the CPU of the control circuit 323
Is turned off (S24), and the display 33
The absolute time is displayed in 3 to 336 (S25), and the LE
D346 is lit to indicate that the program is being input by the absolute time (S26). Next, it is determined whether the increment switch 338 or the decrement switch 337 is turned on (S27). As a result of this determination, when the increment switch 338 or the decrement switch 337 is turned on, the display of the absolute time on the displays 333 to 336 is updated (S28). Thereafter, it is determined whether or not the relay operation setting switches 351 to 366 are turned on (S29). When the switches are turned on, the LEDs 351a to 366a of the turned on relay operation setting switches 351 to 366 are turned on (S30).

Next, the CPU of the control circuit 323 determines whether or not the light switch 341 has been turned on (S31). When the light switch 341 has been turned on, it corresponds to the absolute time displayed on the displays 333 to 336. The relay operation state is stored in the memory 324 (S32). Thereafter, it is determined whether or not the clear switch 342 has been turned on (S33).
The absolute time indicated by 3 to 336 and the relay operation state corresponding thereto are erased from the memory 324 (S34). Thereafter, the process proceeds to the process of S3.

If the result of the determination in S3 is that the mode switch 339 has been turned on, the CPU of the control circuit 323
Turns off the LEDs 344 to 346 (S35) and sets L
Turn on the ED343 to indicate that it is operating (S
36). Next, it is determined whether or not the pattern selection switch 370 is set to the manual MAN position (S3).
7) If it is set to the position of the manual MAN, the manual pattern set by the processing of S4 to S23 is selected (S38). When the manual MAN position is not set, the pattern selection switch
Switching program pattern P1 corresponding to the setting of 370
P3 is selected (S39).

Thereafter, the CPU of the control circuit 323 determines whether or not subcode information has been input from the subcode detection circuit 322 (S40). As a result of this determination, when the subcode information is not input, it is determined whether or not the mode changeover switch 339 is turned on (S41). When the mode changeover switch 339 is turned on, the LED 343 is turned off (S42). The process proceeds to S2. If the mode change switch 339 is not turned on, the process shifts to the process of S40.

If the subcode information is input as a result of the determination in S40, the track number TN and the absolute time T are detected from the subcode information (S43), and the track number TN or the absolute time T is displayed on the display. 331 to 336 (S44). Furthermore, this track number TN
Alternatively, it is determined whether or not the absolute time T is set in the selected manual pattern or switching program pattern (S45). If the result of this determination is that the track number TN or the absolute time T has not been set in the manual pattern or the switching program pattern, the process proceeds to step S40, where the track number TN or the absolute time T is set in the manual pattern or the switching program pattern. The relays RL1 to RL corresponding to the track number TN or the absolute time T
16 is read from the set value of the manual pattern or the switching program pattern (S4).
6) Based on this, the operation state of each of the relays RL1 to RL16 is switched (S47), and the relays RL1 to RL are switched.
16 is displayed on the LEDs 351a to 366a (S4).
8). Thereafter, the process shifts to the process of S40.

As described above, according to the present embodiment, the exhibits A1 to A16 can be sequentially described using one optical disk device, and the exhibits A1 to A16 reproduced from the CD can be described. Lights L1 to L1 in synchronization with
The lighting state of L16 is switched. In addition, since the known optical disk player 2 can be used, an arbitrary information recording position can be immediately accessed, and the start position of the description does not shift. Further, since the switching program patterns P1 to P3 are stored in advance, the switching state of the relays RL1 to RL16 can be set very easily and in a short time by selecting them.

Therefore, the operability can be greatly improved as compared with the conventional example. Also, since it can be used by connecting to the general-purpose optical disc player 2, the optical disc player 2 can be used.
, A CPU control function such as random play or program play can be used.

In this embodiment, three types of switching program patterns P1 to P3 are stored in advance, and these can be selected. However, it goes without saying that the present invention is not limited to three types. Further, the switching program pattern may be set in accordance with the absolute time T, and is desirably set appropriately according to the application.

In the present embodiment, the external device interface unit 31 is provided with 16 relays RL1 to RL16 to control the lighting of the lights L1 to L16. However, the present invention is not limited to this. The number of relays can be increased or decreased as appropriate, and the drive of various devices other than lights can be controlled. Further, means other than the relay can be used as an interface for controlling the driving of the external device. For example, a circuit for outputting a control signal for controlling the driving of the external device based on a signal from the control circuit 323 may be provided.

Further, in the present embodiment, the drive switching device 3 is configured as a device independent of the optical disk player 2, but it goes without saying that the same effect can be obtained by configuring an optical disk device in which these are integrated. It is.

[0044]

As described above, according to the first aspect of the present invention, it is possible to control the driving of the external device in synchronization with the reproduction information of the optical disk. At the time of recording, these descriptions are recorded on an optical disk, and if the lighting of each exhibit is switched based on this playback information, the explanation of each exhibit and the lighting can be synchronized, and the viewing Does not cause discomfort to the person. Furthermore, the so programmed pattern switching switching the driving of the external device has a plurality prestored in the pattern storage unit, the operator first switching program pattern
It only needs to be selected according to the contents of the exhibition, etc., and can be operated very easily.

According to the second aspect of the present invention, in addition to the above effects, a drive switching device independent of the optical disk player is constituted, so that a general-purpose optical disk player capable of outputting reproduction information of the optical disk to the outside. That can be used by being connected to a PC, can be widely used, and has an excellent effect that a remote control function provided in an optical disc player and a CPU control function such as random play or program play can be used. It is.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing a switching program pattern in one embodiment;

FIG. 3 is a diagram illustrating an operation panel according to an embodiment;

FIG. 4 is a diagram illustrating an operation in one embodiment.

FIG. 5 is a control flow chart showing a main part of control in one embodiment.
Chart

FIG. 6 is a control flow chart showing a main part of control in one embodiment.
Chart

FIG. 7 is a control flow chart showing a main part of control in one embodiment.
Chart

FIG. 8 is a control flow chart showing a main part of control in one embodiment.
Chart

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Optical disk, 2 ... Optical disk player, 21 ... Disk drive part, 211 ... Optical pickup, 212 ... Spindle motor, 213 ... Focus servo, 214 ... Tracking servo, 215 ... Rotation servo, 22 ... Reproduction signal processing part, 22
1 ... Analog waveform shaping circuit, 222 ... Digital signal processing circuit, 223 ... Reproduction control circuit, 224 ... Interface circuit, 23 ... Sound output unit, 231 ... D / A converter, 232 ... Amplification circuit, 233 ... Speaker, 3 ... Drive switching device, 31 ...
External device interface unit, RL1 to RL16 ... relay, 311 ... relay driver, 32 ... switch control unit, 32
1 ... information interface circuit, 322 ... subcode detection circuit, 323 ... control circuit, 324 ... memory, 33 ... operation unit, 331
~ 336 ... Display, 337 ... Decrement switch, 338
… Increment switch, 339… Mode switch, 340… Control switch, 341… Light switch, 342… Clear switch, 343 to 346… LED, 34
7… Monitor switch, 351-366… Relay operation setting switch, 351a-366a… LED, 370… Pattern selection switch.

Claims (2)

(57) [Claims] 1. An optical disc apparatus comprising: position information reproducing means for reproducing position information from an optical disk on which information including position information such as track number information or absolute time information is recorded. An external device interface unit having a switch, a pattern storage unit storing a plurality of on / off states of the switch corresponding to predetermined position information as a switching program pattern, and one of the pattern storage units according to an operator's selection. Switching
Pattern selection means for selecting a program pattern, position information reproduced from the optical disc, and the pattern
A comparing unit that compares the switching program pattern selected by the selecting unit with position information, and a comparison result of the comparing unit and the pattern selecting unit.
Switching means for switching an on / off state of a switch of the external device interface means based on a selected switching program pattern. 2. Position information reproducing means for reproducing the position information from an optical disk on which information including position information such as track number information or absolute time information is recorded, and information output means for outputting the position information to the outside. A drive switching device connected to an optical disc player, comprising: an information input means for inputting the position information from the optical disc player; and an external device interface having at least one switch connectable to an external device. Switching means, a pattern storage means for storing a plurality of on / off states of the switch corresponding to predetermined position information as a switching program pattern, and one switching from the pattern storage means by an operator's selection.
A pattern selecting means for selecting the example program pattern, the positional information input and by the information input unit Pas
Switching program pattern selected by turn selection means
A comparison unit that compares the position information of the pattern, and a comparison result of the comparison unit and the pattern selection unit.
Switching means for switching an on / off state of a switch of the external device interface means based on the selected switching program pattern.