JP2642557B2 - 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 the starting position of the explanation is displaced, giving the viewer discomfort. Further, the description of each product or exhibit is sequentially recorded on one magnetic tape, and a predetermined signal tone is recorded after the description of each product or exhibit, and this signal tone is detected. When the illumination light is switched, if the signal sound is not detected due to some abnormality, there is a problem that the light does not turn on when it must be turned on.

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, there is provided 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 provided with position information reproducing means for reproducing the position information, at least one position information registering means for registering position information, position information reproduced from the optical disc, and position information registered in the position information registering means. Comparing means, an external device interface means having at least one switch connectable to an external device, and an on / off state of a switch of the external device interface means based on a comparison result of the comparing means. An optical disk device provided with switching means for selectively switching is proposed.

According to a second aspect of the present invention, there is provided a position information reproducing means for reproducing the position information from an optical disc on which information including position information such as track number information or absolute time information is recorded, and an electric signal or an electric signal. What is claimed is: 1. A drive switching device connected to an optical disc player, comprising: an information output unit for outputting an optical signal to an external device, wherein the information input unit inputs the position information from the optical disc player; Location information registration means for registering information;
Comparing means for comparing the position information input by the information input means with the position information registered in the position information registering means, and an external device interface means having at least one switch connectable to an external device; A drive switching device comprising switching means for selectively switching the on / off state of a switch of the external device interface means based on a comparison result of the comparison 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, arbitrary position information on the optical disc is registered by the position information registering means, and the registered position information is compared with position information reproduced from the optical disc by the comparing means. Further, on / off states of the switches in the external device interface means are selectively switched by the switching means based on the comparison result.

According to 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, arbitrary position information on the optical disc is registered by the position information registering means, and the registered position information is compared with position information reproduced from the optical disc by the comparing means. Further, on / off states of the switches in the external device interface means are selectively switched by the switching means based on the comparison result.

[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 comprises an external device interface unit 31, a switch control unit 32, and an operation unit 33.

Disk drive 2 of optical disk 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 driving of the spindle motor 212. The optical pickup 212 is moved by a focus servo 213 and a tracking servo 214, reads information recorded on the optical disk 1 by an optical signal, converts the optical signal 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 and performs an error check or 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 the reproduction information converted into a digital signal output from the digital signal processing circuit 222. The drive control of the tracking servo 214 and the rotary servo 215 is performed based on the reproduction instruction information set as described above, and the information is reproduced from the optical disc 1. The interface circuit 224 has an optical link connector, and outputs 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 the analog signal 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.

An external device interface of the drive switching device 3
The relay unit 31 is composed of a plurality of relays 311 to 315 and a relay driver 316. Each of the normally open contact NO, normally closed contact NC and contact piece P of each relay 311 to 315 is
Connection terminals a1, b1, c1 to a5 for connection to external devices (not shown)
b5 and c5. In addition, each relay 311 to 315
Of the solenoid SL is grounded, and the other end is connected to a corresponding output terminal of the relay driver 316. Relay
The driver 316 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 unit 32 has an information interface.
A sub-code detection circuit 322, a control circuit 323 including a CPU, and a memory 324.
Here, the memory 324 is constituted by 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 detecting circuit 322 inputs 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 operation position or the operation range of the registration target in the memory 325 using the data of the track number based on the operation of the switch of the operation unit 33, and the registered track number and
The track numbers in the subcode information detected by the subcode detection circuit 322 are compared with each other, and based on the comparison result, each of the relays 311 to 311 of the external device interface unit 31 is output.
315 drive control.

As shown in FIG. 3, the operation unit 33 includes a display 331 disposed on an operation panel 33a, an increment switch 332 including a momentary switch, a decrement switch 333, and first to fifth operation setting switches. 33
4 to 338, a memory switch 339, and an operation switch 340. Also, operation setting switches 334 to 338,
Each of the memory switch 339 and the operation switch 340 includes LEDs 334a to 338a, 339a, and 340a for illumination.

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 numbers TN1 to TN5 of the optical disc 1.

In the exhibition hall, the optical disc player 2 and the drive switching device 3 are connected as described above, and as shown in FIG. The relays 311 to 315 of the external device interface unit 31 are interposed in the middle of the power supply lines 55 to 55. That is, when the relays 311 to 315 are turned on, the illumination lights 51 corresponding to the relays 311 to 315 are turned on.
To 55 are lit. In addition, 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, via the operation panel 33a of the drive switching device 3, explains the exhibits on the optical disk 1. Track numbers TN1a, TN1b to TN5a, TN5b corresponding to the start position and the end position of the optical disk 1 and the track number TN of the optical disk 1 are within the range of these track numbers TN1a, TN1b to TN5a, TN5b, or the start position TN1a. TN5a or the switching state of the relays 311 to 315 when they match the end positions TN1b to TN5b.

These track numbers TN1a, TN1b
When registering the switching state of TN5a, TN5b and relays 311 to 315, the increment switch 332 shown in FIG.
Or, by the decrement switch 333, relay 311
Track numbers TN1a, TN1b at the switching positions of .about.315
TN5a and TN5b are selected. The track number selected at this time is displayed on the display 331. Further, when the memory switch 339 is pressed, the illumination LE of the memory switch 339 is turned on.
D339a lights up. In this state, the operation setting switch 33
Press 4 to 338 to set the switching status of relays 311 to 315.

Here, when the operation setting switches 334 to 338 are pressed, the illuminating LEDs 334a to 338a of the operation setting switches 334 to 338 are turned on or off correspondingly. When the illumination LEDs 334a to 338a are turned on, it indicates that the corresponding relays 311 to 315 operate. After the operation states of the relays 311 to 315 are set by the operation setting switches 334 to 338, when the memory switch 339 is pressed again, the illumination LED 339a is turned off. As a result, each relay 311 to 31 for the track number displayed on the display 331 is displayed.
5 is stored in the memory 334. Here, the track number between the track number TNa registered as the operation start position and the track number TNb registered as the operation end position for one of the relays 311 to 315 is stored as the relay operation state. The above operation is repeated a plurality of times as necessary.

Also, here, as described above, the exhibit 41
45 are sequentially described, the track number TN1a,
Relay 31 corresponding to each of TN1b to TN5a and TN5b
1 to 315 are turned on, and the switching states of the relays 311 to 315 are set so that only the exhibits 41 to 45 to be explained are illuminated.

In such a setting, when the optical disk 1 on which the description of each exhibit is recorded is reproduced, the description of the exhibits 41 to 45 reproduced by the disk drive unit 21 and the reproduction signal processing unit 22 is output as audio output. The voice is output from the speaker 233 by the unit 23. At this time, when the explanation of the first exhibit 41 is started, the track number TN of the optical disc 1 is changed to the track number TN1a registered earlier.
At this time, the relay 311 is turned on, the light 51 is turned on, and only the first exhibit 41 is illuminated. While the description of the first exhibit 41 is being given, the light 51 is maintained in a lighting state, and the explanation of the first exhibit 41 is completed, and the track number TN of the optical disc 1 is changed to the relay 31.
When it becomes equal to the track number TN1b at the operation end position 1, the relay 311 is turned off and the light 51 is turned off.

Also, when data of the track number TN1a is not input from the optical disk player 2 to the drive switching device 3 due to some external influence, the track number TN subsequently input from the optical disk player 2 to the drive switching device 3 However, when it is within the range of the previously registered track number TN1a to trunk number TN1b, the relay 311 is turned on and the light 51 is turned on. Thus, even if the lighting start position of the lighting light is not detected due to some abnormality, the light can be turned on, and the viewer does not feel uncomfortable.

Next, when the description of the second exhibit 42 is started, that is, when the track number TN becomes equal to the registered track number TN2a, the relay 312 is turned on. As a result, the light 52 is turned on, and only the second exhibit 42 to be explained is illuminated. Thereafter, the relays 311 to 315 are similarly switched, and only the exhibition objects 43 to 45 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. After setting the variable N to 0 as an initial setting (S1), the CPU of the control circuit 323 determines whether or not the operation switch 340 is turned on (S2). If the result of this determination is that the operation switch 340 has been turned on, the flow proceeds to the processing of S21 described below, and if not, it is determined whether or not the increment switch 332 has been turned on (S3). If the result of this determination is that the increment switch 332 is not turned on, the process moves to the later-described S7, and if it is turned on, it is determined whether or not the variable N is equal to the maximum track number TNmax (S4). As a result of this determination, when the variable N is equal to the maximum track number TNmax, the variable N is set to 0 (S5), and when not equal, 1 is added to the variable N (S6), and the decrement switch 333 is turned on. It is determined whether or not it has been (S7). If the result of this determination is that the decrement switch 333 has not been turned on, then in step S11
When it is turned on, it is determined whether or not the variable N is equal to 0 (S8). As a result of this determination, when the variable N is equal to 0, the variable N is set to the maximum track number TNmax.
(S9), and when they are not equal, 1 is subtracted from the variable N (S10).

Thereafter, the CPU of the control circuit 323
The variable N is displayed on the memory 331 (S11) and the memory 334 is displayed.
Based on the stored data, the operating states of the relays 311 to 315 corresponding to the N-th track number are displayed by turning on the illumination LEDs 334a to 338a of the operation setting switches 334 to 338 (S12). Next, it is determined whether or not the memory switch 339 has been turned on (S13). If the memory switch 339 has not been turned on, the process shifts to the process of S2. Also, memory switch 33
9 is turned on, the illumination switch L
The ED 339a is turned on (S14), and it is determined whether or not the operation setting switches 334 to 338 are turned on (S1).
5). If the operation setting switches 334 to 338 are not turned on as a result of this determination, the process proceeds to S18 described later. If the operation setting switches 334 to 338 are turned on, the operation states of the relays 311 to 315 corresponding to the Nth track number are stored in the memory. 324 (S1
Along with 6), the operation states of the relays 311 to 315 are displayed by turning on the illumination LEDs 334a to 338a of the operation setting switches 334 to 338 (S17). Next, C of the control circuit 323
The PU determines whether or not the memory switch 339 is turned on (S18). If the memory switch 339 is not turned on, the process proceeds to the process of S15. If the memory switch 339 is turned on, the PU turns off the illumination LED 339a of the memory switch 339. After (S1
9) The track number between the track number TNa corresponding to the operation start position of each relay 311 to 315 and the track number TNb corresponding to the operation end position is stored as the relay operation state (S20). Thereafter, the S3
Move to the processing of.

When the operation switch 340 is turned on as a result of the determination in S2, after the illumination LED 340a of the operation switch 340 is turned on (S21), sub-code information is input from the sub-code detection circuit 322. It is determined whether or not it has been performed (S22). As a result of this determination, when the subcode information is not input, it is determined whether or not the operation switch 340 is turned on (S23). When the operation switch 340 is turned on, the illumination LED 340a is turned off (S24). S2
Move to the processing of. If the operation switch 340 is not turned on, the flow shifts to the process of S22.

When the subcode information is inputted as a result of the determination in S22, the track number TN is detected from the subcode information (S25), and the track number TN is detected.
The operation setting status of each relay 311 to 315 corresponding to
The operation state of each of the relays 311 to 315 is switched (S27). Thereafter, the process proceeds to the process of S22.

As described above, according to the present embodiment, the exhibits 41 to 45 can be sequentially described using one optical disk device, and the exhibits 41 to 45 reproduced from the CD can be described. Lights 51-55 in synchronization with
Is switched over. 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, even if the track number corresponding to the lighting start position of the lighting lights 51 to 55 is not detected for some reason or more, when the track number between the lighting start position and the lighting end position is subsequently detected, the lighting light is not detected. Since 51 to 55 are turned on, there is no discomfort to the viewer as in the related art.

Therefore, operability can be improved and reliability can be improved as compared with the conventional example. Also, since it can be used by being connected to a general-purpose optical disc player 2, a remote control function provided for the optical disc player 2, a CPU for random play or program play, etc.
Control functions can also be used.

In this embodiment, the external device interface section 31 is provided with five relays 311 to 315 to control the driving of the external device. However, the present invention is not limited to this. . The number of relays can be increased or decreased as appropriate. 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 driving of the external device based on a signal from the control unit 323 may be provided.

In this embodiment, the on / off of the relays 311 to 315 of the external device interface unit 31 is controlled by using the track number TN in the subcode information. Will not be
The same effect can be obtained by using the absolute time in the node information.

Further, in the present embodiment, the drive switching device 3 is configured as a device independent of the optical disk player 2, but it is needless to say that the same effect can be obtained by configuring an optical disk device in which these are integrated. That is.

[0035]

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 the illumination of each exhibit can be synchronized with the illumination by switching the illumination of each exhibit based on the reproduction information. Further, even when the drive start position of the external device cannot be detected due to some abnormality,
The external device is driven when it is detected that the position is between the drive start position and the drive end position, so that the viewer does not feel discomfort unlike the related art.

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 the 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 illustrating an operation of an embodiment.

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

FIG. 4 is a control flow chart showing a main part of control in one embodiment.
Chart

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

[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 unit, 22
1 ... analog waveform shaping circuit, 222 ... digital signal processing circuit, 223 ... reproduction control circuit, 224 ... interface circuit, 23 ... audio output unit, 231 ... D / A converter, 232 ... amplifying circuit, 233 ... speed F, 3 ... drive switching device, 31 ...
External device interface section, 311 to 315 ... Relay, 316
... Relay driver, 32 ... Switch control unit, 321 ... Information interface circuit, 322 ... Subcode detection circuit, 323
... Control circuit, 324 ... Memory, 33 ... Operation unit, 331 ... Display unit, 332 ... Increment switch, 333 ... Decrement switch, 334-338 ... Operation setting switch, 334a-
338a, 339a, 340a: LED for illumination, 339: Memory switch, 340: Operation switch.

Claims (2)

(57) [Claims] 1. An optical disc apparatus comprising: a 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. A position information range registering means for registering; a comparing means for comparing position information reproduced from the optical disc with a position information range registered in the position information registering means; and at least one switch connectable to an external device. An optical disk device, comprising: an external device interface unit having the switching unit; and a switching unit for selectively switching an on / off state of a switch of the external device interface unit based on a comparison result of the comparing unit. . 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 transmitting the position information to the outside by an electric signal or an optical signal. What is claimed is: 1. A drive switching device connected to an optical disc player, comprising: an information output unit that outputs information; an information input unit that inputs the position information from the optical disc player; and at least one position information range is registered. Position information range registration means, comparison means for comparing the position information input by the information input means with the position information range registered in the position information registration means, and at least one switch connectable to an external device. Based on the comparison result of the external device interface means and the switch of the external device interface means based on the comparison result of the comparing means. And a switching means switching the full state selectively drive switching device, characterized in that.