JPH05242654A - Optical disk device and drive switching device - Google Patents

Abstract

PURPOSE:To provide an optical disk device and a drive switching device capable of controlling the drive of the frame feeding of a slide projector synchronized with the reproduced information of the optical disk. CONSTITUTION:The ON/OFF states of relays 311 to 315 are stored in a memory 324 corresponding to absolute time via an operation section 33 and absolute time in a subcode information reproduced from an optical disk 1 is detected by a subcode detection circuit 322. When this is coincident with the absolute time stored in the memory 324, the relays 311 to 315 of an outside device interface section 31 are turned ON for a specified period of time, a pulse signal is outputted from the switch connection points of the relays 311 to 315 and the frame sending of the slide projector is operated. Thus, an optional period of time is set for the frame feeding and the frame feeding of the slide projector is made automatic very easily.

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 drive of an external device based on reproduction information of an optical disk.

[0002]

2. Description of the Related Art Conventionally, when an image is projected using a slide projector, it is usual that an operator operates switches to perform frame advancing and frame advancing. Also,
In some cases, an external device using a computer was connected to the slide projector to unmanned the frame advance operation.

[0003]

However, as described above, when the operator performs the frame advancing or the frame returning operation of the slide projector, the operator must always be attached to the slide projector, which is very troublesome. It takes.
Further, when performing frame advance using a computer, there is a problem that a complicated sequence program has to be assembled, and it takes a lot of time just to compose the program.

In view of the above problems, it is an object of the present invention to provide an optical disk device and a drive switching device capable of controlling the driving such as frame advance of a slide projector in synchronization with the reproduction information of the optical disk.

[0005]

In order to achieve the above object, the present invention provides, in claim 1, the position information from an optical disc on which information including position information such as track number information or absolute time information is recorded. In an optical disc apparatus having a position information reproducing unit for reproducing a position, a position information registering unit for registering at least one position information, a position information reproduced from the optical disc, and a position information registered in the position information registering unit. Comparing means, an external device interface means having at least one switch connectable to an external device, and position information reproduced from the optical disc and the position information registration based on the comparison result of the comparing device. When the position information registered in the means coincides with the on / off state of the switch of the external device interface means. We propose an optical disc apparatus provided with a pulse signal generating means for time-reversed.

According to a second aspect of the invention, there is provided 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 the position information is converted into an electric signal or an electric signal. A drive switching device connected to an optical disc player having an information output unit for outputting to the outside by an optical signal, the information input unit inputting the position information from the optical disc player, and at least one position. Location information registration means for registering information,
Comparison means for comparing the position information input by the information input means with the position information registered in the position information registration means; and an external device interface means having at least one switch connectable to an external device. A pulse signal generating means for inverting the on / off state of the switch of the external device interface means for a predetermined time when the position information reproduced from the optical disc and the position information registered in the position information registration means match. We propose a drive switching device that includes and.

[0007]

According to the first aspect of the present invention, the position information reproducing means reproduces the position information such as track number information or absolute time information from the optical disk which is the object of information reproduction. Further, the position information registration unit registers arbitrary position information on the optical disc, and the registered position information is compared with the position information reproduced from the optical disc by the comparison unit. Further, based on the comparison result, when the pulse signal generating means matches the position information reproduced from the optical disc with the position information registered in the position information registering means, the switch in the external device interface means Is turned on and off for a predetermined time, and a pulse signal is generated to an external device.

According to the second aspect of the invention, the position information such as track number information or absolute time information reproduced from the optical disk as the information reproduction target is inputted from the optical disk player by the information input means. Further, the position information registration unit registers arbitrary position information on the optical disc, and the registered position information is compared with the position information reproduced from the optical disc by the comparison unit. Further, based on the comparison result, when the pulse signal generating means matches the position information reproduced from the optical disc with the position information registered in the position information registering means, the switch in the external device interface means Is turned on and off for a predetermined time, and a pulse signal is generated to an external device.

[0009]

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

The disk drive unit 2 of the optical disk player 2
Reference numeral 1 denotes a known optical pickup 211, a spindle motor 212 for rotating the optical disc 1, a focus servo 213,
It comprises a tracking servo 214 and a rotary servo 215 which controls the drive of the spindle motor 212. The optical pickup 212 is moved by the focus servo 213 and the tracking servo 214, reads the information recorded on the optical disk 1 as an optical signal, converts it into an analog electric signal, and outputs it.

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 uses the optical pickup 211
The electric signal of reproduction information is input from the device to shape the waveform, and is converted into a digital signal and output. The digital signal processing circuit 222 inputs the digital signal output from the analog waveform shaping circuit 221, performs error checking, and converts the digital signal into a predetermined format for output. The reproduction control circuit 223 includes a CPU, a plurality of switches, etc., and inputs the reproduction information converted into the 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 by the above, and the information is reproduced from the optical disc 1. The interface circuit 224 has an optical link connector and outputs the reproduction information converted into the digital signal output from the digital signal processing circuit 222 to the outside as an optical signal.

The audio output section 23 is composed of 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 is format-converted by the digital signal processing circuit 222, into an analog signal and outputs it to the amplifier circuit 232. The amplifier circuit 232 amplifies the input signal with a predetermined amplification factor and outputs it to the speaker 233.

External device interface of drive switching device 3
The slot portion 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 connecting to an external device (not shown),
It is connected to b5 and c5. In addition, each relay-311 to 315
The solenoid SL has one end grounded and the other end connected to the 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 terminals based on an input signal to each input terminal.

The switch controller 32 is an information interface.
It is composed of a read circuit 321, a sub-code detecting circuit 322, a control circuit 323 including a CPU, and a memory 324.
Here, the memory 324 is composed of 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 disc player 2, and inputs the information reproduced from the optical disc 1 as an optical signal. The sub-code detection 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 is
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 indicator and LED of the operation unit 33. Further, the control circuit 323 stores the data of the track number to be registered in the memory 325 based on the operation of the switch of the operation unit 33, and the registered track number and the subcode detection circuit 322 detect the data. The track numbers in the subcode information are compared with each other, and the driving of the relays 311 to 315 of the external device interface section 31 is controlled based on the comparison result.

As shown in FIG. 2, the operation unit 33 includes a display 331 arranged on the operation panel 33a, an increment switch 332 composed of a momentary switch, a decrement switch 333, and operation setting switches Nos. 1 to 5. 33
4 to 338, a memory switch 339, an operation switch 340, and a slide device selection switch 341 including an alternate switch. Also, the operation setting switch 33
LEDs 334a to 338a, 339a and 340a for illumination are built in the memory switches 339 to 339 and the operation switch 340, respectively.

Next, the operation of the embodiment having the above-mentioned structure will be described. In the following description, as described in the conventional example, a method of automatically performing frame advance of the slide projector will be described as an example. When recording the explanation for each slide in advance, first prepare a recordable optical disc 1 and a recording device for recording on this optical disc 1, and describe the explanation for each slide in a predetermined order. Record on optical disc 1. At this time, the recording start position of the explanatory note for each slide is confirmed by the absolute time of the optical disc 1. In addition, when the description is not recorded, the display time of each slide is determined in advance.

Then, as described above,
The relay 2 is connected to the drive switching device 3, and the relay 31
Connect one of the contact pieces 1 to 315 and the normally open contact in parallel with the frame advance switch of the slide projector. Here, it is assumed that frame forwarding is performed using the relay 311.

Furthermore, when the slide frame is advanced together with the reproduction of the explanatory text, the reproduction control unit 223 of the optical disk player 2 sets the reproduction order of the explanatory text recorded on the optical disk 1 and the drive switching device. Operation panel 3
3a, the absolute time T1 to Tn corresponding to the start position of the explanation of each slide on the optical disc 1 and the absolute time T reproduced from the optical disc 1 match the absolute time T1 to Tn. Register the switching status of 311 to 315 (only the relay 311 is driven here). When the slides are explained manually or not explained, the optical disc 1 is set to be played in order from the beginning, and the frame advance execution based on the previously determined display time of each slide is performed. Absolute time T
1 to Tn, and the absolute time T reproduced from the optical disc 1.
However, the switching states of the relays 311 to 315 (here, only the relay 311 is driven) when the absolute times T1 to Tn coincide with each other are registered.

These absolute times T1 to Tn and relay 31
When registering the switching states of 1 to 315, the increment switch 332 or the decrement switch shown in FIG.
The absolute times T1 to Tn of the switching positions of the relays 311 to 315 are selected by 333. The absolute time selected at this time is displayed on the display unit 331. In addition, memory switch 339
When the button is pressed, the illumination LED 339a of the memory switch 339 lights up. In this state, the operation setting switches 334 to 338 are pressed to set the switching states of the relays 311 to 315.

When the operation setting switches 334 to 338 are pressed, the illumination 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 lit, it indicates that the corresponding relays 311 to 315 operate. When the memory switch 339 is pressed again after the operation states of the relays 311 to 315 are set by the operation setting switches 334 to 338, the illumination LED 339a is turned off. As a result, the operating states of the relays 311 to 315 with respect to the absolute time displayed on the display 331 are stored in the memory 334. The above operation is repeated a plurality of times as necessary.

Further, since the frame movement of the slide projector is sequentially performed as described above, the slide device selection switch 341 is set to ON. As a result, in FIG.
As shown in (a), when the absolute time of the optical disc 1 matches the registered absolute time T1 to Tn, the relays 311 to 315 are turned on for a predetermined time. When the slide device selection switch 341 is set to OFF, the relay is maintained in the ON state until the absolute time Toff when the relay OFF is set as shown in FIG. 3B.

In such a setting, when the optical disc 1 on which the explanatory note of each slide is recorded is reproduced, the explanatory note of the slide reproduced by the disc drive section 21 and the reproduction signal processing section 22 is spun by the audio output section 23. Mosquito 23
Sound is output from 3. At this time, when the explanation of the first slide starts, the absolute time T of the optical disc 1
Becomes equal to the previously registered absolute time T1, at which time the relay 311 is turned on for a predetermined time to advance the frame and display the first slide.

When the explanation of the first slide is finished and the explanation of the second slide is started, that is, when the absolute time T becomes equal to the registered absolute time T2, the relay is released.
311 is turned on again for a predetermined time. As a result, frame advance is performed and the second slide to be explained is displayed. After that, the relays 311 to 315 are similarly switched, the frame is advanced in synchronization with the explanation, and the slide to be explained is displayed.

Next, the operation of the switch controller 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 TN representing the absolute time to 0 as an initial setting (S1), and then determines whether or not the operation switch 340 is turned on (S2). As a result of this determination, when the operation switch 340 is turned on, the process proceeds to S20 described later, and when it is not turned on, it is determined whether or not the increment switch 332 is turned on (S3). As a result of this determination, the increment switch 33
When 2 is not turned on, the processing shifts to S7 described later,
When turned on, it is determined whether the variable TN is equal to the maximum absolute time Tmax (S4). As a result of this determination, the variable T
When N is equal to the maximum absolute time Tmax, the variable TN is set to 0 (S5), and when not equal, 1 second is added to the variable TN (S6), and then it is determined whether the decrement switch 333 is turned on. Yes (S7). As a result of this determination, when the decrement switch 333 is not turned on, the process proceeds to S11 described later, and when it is turned on, it is determined whether or not the variable TN is equal to 0 (S8). As a result of this determination, when the variable TN is equal to 0, the variable TN is set to the maximum absolute time Tmax (S9), and when it is not equal, the variable TN is set.
1 second is subtracted from (S10).

After this, the CPU of the control circuit 323 is
The variable TN is displayed in 331 (S11) and the memory 33
Based on the stored data of 4, the operating 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 in correspondence with the variable TN representing the absolute time (S12). ). Next, the memory switch 33
It is determined whether 9 is turned on (S13), and if not turned on, the process proceeds to S2. When the memory switch 339 is turned on, the illumination LED 339a of the memory switch 339 is turned on (S14), and it is determined whether the operation setting switches 334 to 338 are turned on (S).
15). As a result of this judgment, the operation setting switches 334 to 338
If is not turned on, the process proceeds to S18 described later,
When turned on, the operating states of the relays 311 to 315 are stored in the memory 324 in correspondence with the variable TN representing the absolute time (S16), and the operating states of the relays 311 to 315 are set to the operating setting switches 334. ~ 338 illumination LED 334a ~ 338a
Is displayed by lighting (S17).

Next, the CPU of the control circuit 323 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 step S15, and if it is turned on. After turning off the illumination LED 339a of the memory switch 339 (S19), each relay 311
The absolute time between the absolute time corresponding to the operation start position of ~ 315 and the absolute time corresponding to the operation end position is stored as a relay operation state (S20). After this, S
The process shifts to 2.

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), subcode information is input from the subcode detection circuit 322. It is determined whether it has been done (S22). As a result of this determination, when the sub-code information is not input, it is determined whether or not the operation switch 340 is turned on (S23), and when the operation switch 340 is turned on, the illumination LED 340a is turned off (S24). The S2
Process shifts to. If the operation switch 340 is not turned on, the process proceeds to S22.

If the sub-code information is input as a result of the determination in S22, the absolute time T is selected from the sub-code information.
After detecting (S25), the slide device selection switch 34
It is determined whether 1 is on (S26). If the result of this determination is that the slide device selection switch 341 is on, it is determined whether or not this absolute time T is stored in the memory 324 (S27). As a result of this determination, the absolute time T
When the absolute time T is stored in the memory 324, each of the relays 311 to 315 corresponding to the absolute time T is stored.
The operation setting state of is read from the memory 324 (S28),
Based on this, the relays 311 to 315 are turned on for a predetermined time (S29). As a result, the frame movement of the slide projector is performed. After this, the processing shifts to S22.

As a result of the determination at S26, when the slide device selection switch 341 is off, the CPU of the control circuit 323
Reads out the operation setting state of each relay 311 to 315 corresponding to the absolute time T detected in the processing of S25 from the memory 324 (S30), and based on this, the respective relay 311 to 311.
The operating states of ~ 315 are switched (S31). After this, the processing shifts to S22.

As described above, according to the present embodiment, the slides can be automatically explained by using one optical disk device, and the slide projector can be synchronized with the explanation of each slide reproduced from the CD. The frame advance is performed.
Further, since the well-known optical disk player 2 can be used, an arbitrary frame feed time can be set, and the frame feed position does not shift. Therefore, the frame feeding of the slide projector can be automated much more easily than the conventional example, and the operability can be improved. In addition, a general-purpose optical disk player 2
Since it can be used by being connected to the optical disk player 2, the remote control function provided in the optical disk player 2 and the CPU control function such as random play or program play 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, but the invention is not limited to this. .. The number of relays can be increased or decreased as appropriate. Also, 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 the signal from the control unit 323 may be provided.

Further, in the present embodiment, the absolute time T in the subcode information is used to control the on / off of the relays 311 to 315 of the external device interface section 31, but the present invention is not limited to this. The same effect can be obtained by using the track number in the subcode information.

Further, in the present embodiment, the drive switching device 3 is constructed as a device independent of the optical disc player 2, but it goes without saying that the same effect can be obtained by constructing an optical disc device in which these are integrated. That's a good thing.

[0035]

As described above, according to the first aspect of the present invention, it is possible to control the frame advance of the slide device or the like in synchronization with the reproduction information of the optical disk. When doing this, if you record these explanations on an optical disk and perform frame advance of each slide based on this playback information, it is very easy to automatically perform frame advance in synchronization with the explanation of each slide. it can.

Further, according to claim 2, in addition to the above effect, since the drive switching device independent from the optical disc player is configured, a general-purpose optical disc player capable of outputting the reproduction information of the optical disc to the outside. It has an excellent effect that it can be used by being connected to a computer, can be widely used, and can utilize a remote control function provided in an optical disk player and a CPU control function such as random play or program play. Is.

[Brief description of drawings]

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

FIG. 2 is a diagram showing an operation panel according to an embodiment.

FIG. 3 is a diagram for explaining the operation of one 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 ... Rotating 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 section, 231 ... D / A converter, 232 ... Amplification circuit, 233 ... Speed F, 3 ... Drive switching device, 31 ...
External device interface section, 311 to 315 ... Relay, 316
... relay driver, 32 ... switch control section, 321 ... information interface circuit, 322 ... subcode detection circuit, 323
... Control circuit, 324 ... Memory, 33 ... Operating part, 331 ... Display unit, 332 ... Increment switch, 333 ... Decrement switch, 334-338 ... Operation setting switch, 334a-
338a, 339a, 340a ... Illumination LED, 339 ... Memory switch, 340 ... Operation switch, 341 ... Slide selection switch.

Claims (2)

[Claims] 1. An optical disk device comprising 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 at least one position information is registered. External device having position information registering means, comparing means for comparing the position information reproduced from the optical disc with the position information registered in the position information registering means, and at least one switch connectable to the external device. The external device interface when the position information reproduced from the optical disc and the position information registered in the position information registration unit match based on the comparison result of the interface unit and the comparison unit. And a pulse signal generating means for inverting the on / off state of the switch of the means for a predetermined time. Disk device. 2. 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 the position information is externally transmitted by an electric signal or an optical signal. A drive switching device connected to an optical disc player provided with information output means for outputting, information input means for inputting the position information from the optical disc player, and a position for registering at least one position information. An external device having an information registration means, a comparison means for comparing the position information input by the information input means with the position information registered in the position information registration means, and at least one switch connectable to the external device. The interface means, the position information reproduced from the optical disc and the position information registered in the position information registration means are matched. Occasionally, the external device Intafe - the on-off state of the switch of the scan unit and a pulse signal generating means for a predetermined time-reversed, driving the switching device, characterized in that.