JP2002373471A - Optical disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk player, capable of continuing playing of an optical disk, even without any input operations which correspond to an interactive program, when there is a group of interactive programs during playing. SOLUTION: The optical disk player is provided with a reproducing means for reproducing data recorded, in an optical disk in designated order for each group; an operating part for inputting a response signal corresponding to the interactive program group; a control unit for executing control so as to play the interactive group, when the response signal, corresponding to the interactive program group reproduced by the reproducing means, is outputted from an operation means; a timer for outputting time information; and the control unit executes control, so as to discontinue the playing of the interactive program group to play a next group, when no response signals are outputted from the operating part within a preset time, based on the time information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a DVD (Digital)
The present invention relates to an optical disc reproducing apparatus for reproducing an optical disc such as a Versatile Disc.

[Prior art]

There is an optical disk reproducing apparatus capable of storing and reproducing a plurality of optical disks such as DVDs on which video information is recorded together with music information. In addition, there is a DVD in which data of an interactive program for causing the reproduction of data recorded in the DVD to proceed by performing a specific input operation from an optical disc reproducing device is recorded. For example, there is a disc on which a plurality of music pieces are recorded in groups, and specific data such as a password must be input to reproduce a specific group.

FIG. 3 is a block diagram showing a configuration of an example of a conventional optical disk reproducing apparatus. The optical disk reproducing device includes a mechanical unit 1, a signal processing unit 2, an application block 3, an output unit 4, a user interface block 6, a roulette block 7, a remote controller transmitter 8, and a system controller 500.

[0004] The roulette block unit 7 includes a plurality of DVDs.
(Digital Versatile Disc) is equipped with a roulette that can be stored. The rotation of the roulette drive unit is controlled by the control of the system controller of the system controller unit 5. The roulette drive unit selects a specified disk from a plurality of optical disks stored in the roulette and transports the selected disk to the mechanical unit 1.

The mechanical unit 1 has a mechanical drive unit on which an optical pickup and a slide motor / spindle motor are mounted. The mechanical drive unit includes a pickup feed mechanism that moves the optical pickup in the radial direction of the optical disk, and a disk loading mechanism that places the optical disk transported by the roulette drive unit on a turntable of a spindle motor.

The optical pickup is provided with a red laser diode, an optical component for irradiating the laser beam emitted from the laser diode to the recording portion of the optical disk, and a photodetector for detecting the laser light reflected from the optical disk, and the faint light detected by the photodetector. By incorporating a current / voltage conversion circuit for converting a photocurrent signal into a voltage and amplifying the voltage, data recorded on an optical disk mounted on a turntable of a spindle motor (not shown) is read, and a signal processing unit 2 is provided. Output to

[0007] The signal processing section 2 includes an RF signal processing section, a data processor section, and a disk discriminating section. The RF signal processing unit includes a waveform equalization circuit for returning the data read by the optical pickup to a waveform that can be accurately detected, and an optical pickup such as a tracking error signal and a focus error signal from a signal output from the waveform equalization circuit. And drives the current flowing through the laser diode so that the light emitting output of the laser diode becomes appropriate.

The servo processor section has a CLV (Constant
(Linear Velocity) Controls servo, optical pickup, etc. The data processor section stores audio information, main video information, sub-video information, and program control information (PGC) for managing the progress of the program recorded on the DVD.
I, Program Control Information) data is read for each group.

The disc discriminating section determines whether the optical disc is a CD (Compacable) based on the focus signal output from the RF signal processing section.
t Disc) or DVD. Since the CD and the DVD have different physical structures (the thickness of the disk), the waveforms of the focus error signal are different from each other, and it is possible to determine whether the CD or the DVD is used by using this. Since it is possible to distinguish between CD and DVD only by the focus error signal without reading the information recorded on the disc, the discrimination is performed in a shorter time than the method of reading the information recorded on the disc and discriminating the type of the optical disc. There is an advantage that can be. An example of means for determining the type of a disc as a CD or a DVD without reading information recorded on the disc is disclosed in Japanese Patent Laid-Open No. 10-275407.
The description of the means for discriminating a disc is omitted here.

The application block 3 includes a main video decoder, a sub video decoder, an NTSC encoder, and an audio decoder. The main video decoder unit performs a process of demodulating the data of the main video information input from the data processor unit and converting the demodulated data into a main video signal of a screen of a normal television (screen size aspect ratio is 3: 4).

[0011] The sub-picture decoder section demodulates the data of the sub-picture information input from the data processor section and converts it into a sub-picture signal. The sub-video decoder unit mixes the converted sub-video signal with the main video signal from the main video decoder unit and outputs. The NTSC encoder converts the mixed main video signal and sub video signal into an NTSC analog video signal and outputs it.

The audio decoder section demodulates the data of the audio information input from the data processor section.
A / A converter (Digital to Analog Converter) converts it into analog audio signals of two channels on the left and right, and outputs them. The audio decoder converts the demodulated audio information data into a digital audio signal conforming to the digital audio interface standard, and outputs the digital audio signal.

The output section 4 includes an analog video output section, an analog audio output section, and a digital audio output section. The analog video output unit amplifies the video data input from the NTSC encoder unit and outputs it as a video signal to the outside. The analog audio output unit and the digital audio output unit amplify the analog data and digital data input from the audio decoder unit, and output the amplified analog data and digital audio signals to the outside as analog audio signals and digital audio signals.

The remote control transmitter 8 includes a reproduction instruction key for instructing reproduction of the optical disk and ten keys including keys 0 to 9, and when the reproduction instruction key and the ten keys are input, the reproduction instruction signal and the number 0 are respectively input. The number signal No. to No. 9 is transmitted by infrared rays.

The user interface block 6 includes:
The optical disc reproducing apparatus includes a display such as a fluorescent display tube for displaying an operation state of the optical disc reproducing device, and a remote control light receiving device for receiving infrared rays transmitted from the remote control transmitter 8. The remote control light receiver converts the infrared ray received from the remote control transmitter 8 into a signal and outputs the signal to the system controller unit 5.

The system controller section 500 is composed of a microcomputer and has a password identification section. When a reproduction instruction signal is input from a reproduction instruction key of the remote control transmitter 8 via the user interface block 6, the system controller 500 controls the mechanical unit 1 to start reproducing the optical disc 103. The system controller unit 500 receives program control information from the data processor unit and controls the signal processing unit 2 and the application block unit 3 according to the program control information.

The personal identification number discriminating part is recorded in the program control information when the program control information input from the data processor part is interactive program control information in which reproduction of the group is permitted by inputting the personal identification number. It is determined whether or not the password and the password input from the user interface block unit 6 match. The password identification section
When a password matching the password recorded in the program control information is input from the user interface block 6, matching data indicating that the password matches the password is output, and is different from the password in the program control information. When the personal identification number is input from the user interface block 6, non-matching data indicating that the personal identification numbers do not match is output.

When the matching data is input from the password discriminating section, the system controller 500 permits reproduction of the group according to the program control information input from the data processor section and controls the group to perform reproduction.

FIG. 4 is a flowchart for explaining the reproducing operation of the conventional optical disk reproducing apparatus. In this flowchart, a case will be described in which a DVD in which a group of interactive programs permitted to be reproduced by inputting a personal identification number is recorded is reproduced. Also,
The optical disk reproducing apparatus is set to continuously reproduce data recorded on the optical disk for each group, and to continuously reproduce a plurality of optical disks stored in roulette for each disk.

First, a reproduction instruction key of the remote control transmitter 8 is used to instruct reproduction of the optical disk. The system controller 500 controls the roulette drive to transport the disk Dn stored at the disk storage position number Dn. The roulette driving unit drives the roulette to rotate and conveys the disk Dn to the mechanical unit 1.
The mechanical unit 1 controls to read data recorded on the disk Dn group Gn. (ST1)

Next, the system controller section 500
The data of the program control information of the group Gn is input from the data processor. (ST2)

In ST2, if the group Gn is not a group that requires input of a password, the process proceeds to ST5. If the group Gn is a group that requires input of a personal identification number, the process proceeds to ST3. In ST3, the password identification unit accepts input of a password from the numeric keypad of the remote control transmitter 8.

In ST3, when a password is input to the system controller 500, the process proceeds to ST4.

In ST4, it is determined whether or not the password input by the password determination unit matches the password recorded in the program data of the group Gn.

In ST4, if the password identification unit determines that the input password matches the password of the program data, the process proceeds to ST5, where the input password is the same as the password of the program data. If it is determined that they do not match, the process proceeds to ST3. In ST5, the system controller reproduces the video data and the audio data recorded in the group Gn according to the program data.

When the reproduction of the group Gn is completed (ST
6) It is detected whether or not the disk Dn has a next group (ST7). If there is a next group, the next group is reproduced (ST8). If there is no next group, that is, if the group Gn is the last group of the disk Dn, control is performed to reproduce the next disk. (ST9)

As described above, in the conventional optical disk reproducing apparatus, when attempting to reproduce a group of interactive programs permitted to be reproduced by inputting a personal identification number, if the input personal identification number matches the personal identification number of the program data, , You can play that group.

In the conventional optical disc reproducing apparatus, when a group of interactive programs requiring input of a personal identification number is recorded on the optical disc 103 to be reproduced, the reproduction is performed until the operator inputs the ten keys of the remote control transmitter 8. Maintain the paused state. For example, if the user wants to continuously play music recorded on the optical disc 103 for BGM by the optical disc reproducing apparatus, if a group of interactive programs requiring input of a personal identification number is recorded on the optical disc 103, the group is changed to Playback pauses when you try to play,
Music to be played is interrupted. The operator has to perform the input operation of the personal identification number every time the group reproduced by the optical disk reproducing apparatus becomes the interactive program group that requires the input of the personal identification number, and the input operation is troublesome. In the case of an optical disk recording / reproducing apparatus having a function capable of programming the order of music to be reproduced in advance, if a program for reproducing only a group excluding a group requiring input of a personal identification number is provided, a musical tone for BGM can be obtained. Can be prevented, but it is troublesome to input all the programs in the order in which the plurality of songs recorded on the plurality of optical discs 103 stored in the roulette are reproduced.

[0029]

SUMMARY OF THE INVENTION The present invention relates to an optical disk reproducing apparatus for reproducing an optical disk, when an interactive program group is present during reproduction.
It is an object of the present invention to provide an optical disk reproducing apparatus that can continue to reproduce an optical disk without performing an input operation corresponding to an interactive program.

[0030]

According to a first aspect of the present invention, there is provided an optical disk reproducing apparatus for reproducing an optical disk, comprising: reproducing means for reproducing data recorded on the optical disk for each group in a specified order; An operation unit for inputting a response signal corresponding to a group of various programs, and reproducing the interactive group when a response signal corresponding to the group of interactive programs reproduced by the reproduction unit is output from the operation unit. A control unit for controlling, and a timer for outputting time information, wherein the control unit is an interactive program group when the response signal is not output from the operation unit within a predetermined time based on the time information. Stop playback and play the next group after that group Characterized in that the Gosuru.

According to a second aspect of the present invention, in the optical disk reproducing apparatus according to the first aspect, there is provided a storage unit for previously storing the response signal input from the operation unit, and the control unit includes the reproducing unit. When the reproduced track is a group of interactive programs, the control section reads out the response signal from the storage section and handles the response signal as the response signal output from the operation section.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An optical disk reproducing apparatus according to one embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the optical disk reproducing apparatus of the present embodiment.

The optical disk reproducing apparatus includes a mechanical unit 1, a signal processing unit 2, an application block 3, an output unit 4, a system controller 5, a user interface block 6, a roulette block 7, and a remote control transmitter 8.

The roulette block unit 7 includes a plurality of DVDs.
A roulette 702 capable of storing an optical disk such as The rotation of the roulette drive unit 701 is controlled by the system controller 501 of the system controller unit 5, and the roulette drive unit 701 selects a specified disk from a plurality of optical disks stored in the roulette 702 and transports the selected disk to the mechanical unit 1.

The mechanical unit 1 includes an optical pickup 10
1 and a mechanical drive unit 102 equipped with a slide motor / spindle motor. The mechanical drive unit 102 includes a pickup feed mechanism that moves the optical pickup 101 in the radial direction of the optical disk, and a disk loading mechanism that places the optical disk 103 conveyed by the roulette drive unit 701 on a turntable of a spindle motor.

The optical pickup 101 is provided with a red laser diode, an optical component for irradiating the recording portion of the optical disk 103 with the laser light emitted by the laser diode, and a photodetector for detecting the laser light reflected from the optical disk. By incorporating a current / voltage conversion circuit for converting a weak photocurrent signal into a voltage and amplifying the voltage, data recorded on an optical disc 103 mounted on a turntable of a spindle motor (not shown) is read, and the signal is read. Output to the processing unit 2.

The signal processing unit 2 includes an RF signal processing unit 201,
It includes a data processor unit 203 and a disk discrimination unit 204. The RF signal processing unit 201 includes the optical pickup 10
1 is provided with a waveform equalizing circuit for returning the read data to a waveform that can be accurately detected, and a servo error signal for controlling an optical pickup such as a tracking error signal and a focus error signal is output from a signal output from the waveform equalizing circuit. It detects the current and drives the current flowing through the laser diode so that the emission output of the laser diode becomes appropriate.

The servo processor unit 202 has a CLV (Con
stant Linear Velocity) servo, optical pickup 101
And so on. The data processor 203 is a DVD
Information, main video information, sub-video information, and program control information (PGCI, Program Control Informatio
Read the data of n) for each group.

The disc discriminating section 204 discriminates whether the optical disc is a CD or a DVD from the focus signal output from the RF signal processing section 201. Since the CD and the DVD have different physical structures (the thickness of the disc), the waveforms of the focus error signal are different from each other.
D or DVD can be determined. Since it is possible to distinguish between CD and DVD only by the focus error signal without reading the information recorded on the disc, the discrimination is performed in a shorter time than the method of reading the information recorded on the disc and discriminating the type of the optical disc. There is an advantage that can be.

The application block unit 3 includes a main video decoder unit 301, a sub video decoder unit 302, an NTSC
An encoder 303 and an audio decoder 304 are provided.

The main video decoder 301 demodulates the data of the main video information input from the data processor 203 and converts it into a main video signal of a normal television (screen size ratio of 3: 4). Perform processing. The sub-picture decoder 302 demodulates the data of the sub-picture information input from the data processor 203 and converts it into a sub-picture signal.
The sub-video decoder 302 mixes the converted sub-video signal with the main video signal from the main video decoder 301 and outputs it.

The NTSC encoder 303 converts the mixed main video signal and sub video signal into NTSC analog video signals and outputs them. The audio decoder unit 304 demodulates the data of the audio information input from the data processor unit 203, and converts the data into a D / A converter (Digital t).
o Analog Converter) converts to left and right 2 channel analog audio signal and outputs. The audio decoder unit 304 converts the demodulated audio information data into a digital signal conforming to the digital audio interface standard and outputs the digital signal.

The output unit 4 includes an analog video output unit 401,
An analog audio output unit 402 and a digital audio output unit 403 are provided. Analog video output unit 401
Amplifies the video data input from the NTSC encoder 303 and outputs it as a video signal to the outside. Analog audio output unit 402 and digital audio output unit 4
Numeral 03 amplifies analog data and digital data input from the audio decoder unit 304, and outputs the amplified analog data and digital audio signals to the outside.

The remote control transmitter 8 includes a reproduction instruction key for instructing reproduction of the optical disk and ten keys including keys 0 to 9, and when the reproduction instruction key and the ten keys are input, the reproduction instruction signal and the number 0 are respectively input. The number signal No. to No. 9 is transmitted by infrared rays.

The user interface block 6 includes:
The optical disc reproducing apparatus includes a display such as a fluorescent display tube for displaying an operation state of the optical disc reproducing device, and a remote control light receiving device for receiving infrared rays transmitted from the remote control transmitter 8. The user interface block 6 converts the received infrared ray into a reproduction instruction signal and a number signal, and outputs the signal to the system controller 501 of the system controller 5.

The system controller 5 comprises a microcomputer and includes a system controller 501, a password identification unit 503, and a timer 504. When a reproduction instruction signal is output from the user interface block section 6, the system controller 501 controls the mechanical unit section 1 to start reproducing the optical disc 103.

The system controller 501 receives program control information from the data processor unit 203 and controls the signal processing unit 2 and the application block unit 3 according to the program control information.

If the program control information input by the system controller 501 is data of an interactive program whose group is permitted to be reproduced by inputting the password, the password identification unit 503 stores the password in the program control information. Then, it is determined whether or not the stored password matches the password input from the user interface block unit 6. The password identification unit 503 includes a user interface block unit 6
When a password that matches the password recorded in the program control information is input from the CPU, the matching data indicating that the password matches the password is output to the system controller 501. When a password different from the password recorded in is entered, non-matching data indicating that the password does not match is output to the system controller 501.

The timer 504 outputs a pulse signal having a constant period. Based on the pulse signal output from the timer 504, the system controller 501 activates an interactive program that requires the input of a personal identification number, and then, for a predetermined period of time, for example, 10 seconds, matches the matching data from the personal identification number determination unit 503. Alternatively, if the non-matching data is not input, the reproduction of the group is interrupted, and the mechanical unit 1 is controlled to reproduce the next group. When the group whose reproduction has been interrupted is the last group recorded on the optical disk 103, the system controller 501 causes the mechanical unit 1 to reproduce the next optical disk from among the optical disks stored in the roulette 702.
Control.

When the matching data is input from the personal identification number determination unit 503 within, for example, 10 seconds after the start of the interactive program, the system controller 501 reproduces the group according to the interactive program data.

FIG. 2 is a flowchart for explaining the reproducing operation of the optical disk reproducing apparatus of the present embodiment. In this flowchart, a case will be described in which a DVD in which a group of interactive programs permitted to be reproduced by inputting a personal identification number is recorded is reproduced. The data recorded on the optical disc 103 is set to be continuously reproduced for each group, and the plurality of optical discs 103 stored in the roulette 702 are set to be continuously reproduced for each disc.

First, the reproduction of the optical disk is instructed by the reproduction instruction key of the remote control transmitter 8. The system controller 501 controls the roulette driving unit 701 to transport the disk Dn stored at the disk storage position number Dn. The roulette driving unit 701 drives the roulette 702 to rotate, and conveys the disk Dn to the mechanical unit 1. The mechanical unit 1 controls to read data recorded in the group Gn of the disk Dn. (ST11)

Next, the system controller 501 inputs the data of the program control information of the group Gn from the data processor unit 203. (ST12)

If the group Gn is not a group that requires input of a personal identification number, the process proceeds to ST16 to reproduce the group Gn. When the group Gn is a group that requires input of a password, the password identification unit 503 accepts the input of a number signal from the numeric keypad of the remote control transmitter 8.
The system controller 501 starts measuring time based on the pulse signal from the timer 504. (ST1
3)

When a password is input from the remote control transmitter 8 via the user interface block 6,
If the process proceeds to ST15 and the password is not input, ST
Move to 20.

In ST20, the system controller 501 sends the user interface block 6 to 1
If the password is not input within 0 seconds, the process proceeds to ST14, and if the password is not input from the user interface block 6 within 10 seconds, the process proceeds to ST18.

When a password is input from the remote control transmitter 8, it is determined whether or not the password input by the password identification unit 503 matches the password in the program control information of the group Gn. (ST5)

If the password identification unit 503 determines that the input passwords match, the process proceeds to ST16, and if it determines that the input passwords do not match, the process proceeds to ST14. .

In ST16, the system controller 501 determines the program control information of the group recorded on the optical disc 103 according to the data.
The mechanical unit 1 and the signal processing unit 2 are controlled to reproduce the group Gn. When the reproduction of the group Gn is completed (ST17), the system controller 501 detects whether or not the disk Dn has the next group (S17).
T18) If there is a next group, the process proceeds to ST19 and controls to reproduce the next group. If there is no next group, that is, if the group Gn is the last group of the disk Dn, the process proceeds to ST21 and controls to reproduce the next disk. (ST21)

As described above, in the optical disk reproducing apparatus according to the present embodiment, when attempting to reproduce an interactive program group that requires input of a personal identification number, the system controller 501 transmits a remote control signal via the user interface block unit 6. When the personal identification number is not input from the remote control transmitter 8 for more than 10 seconds from the device 8, the reproduction of the interactive program group is interrupted, and the control is performed so as to reproduce the next group or the next disk. Accordingly, when the optical disk 103 on which the interactive program group requiring the input of the personal identification number is recorded is stored in the roulette block unit 7, the roulette can be performed without performing the ten key input operation by the remote control transmitter 8. The optical disc 103 stored in the drive unit 701 can be continuously reproduced.

The optical disk reproducing apparatus of this embodiment is configured to reproduce the next group or the next optical disk when the input of the personal identification number is not performed for 10 seconds. 501
However, when the data input from the data processor unit 203 is data of interactive program control information, the personal identification number stored in the storage unit is input, and the personal identification number determination unit 503 determines whether the personal identification numbers match. , And when it is determined that the passwords match, the group may be controlled to be reproduced according to interactive program control information. As a result, the interactive program group can be reproduced and the optical disc 103 stored in the roulette block unit 7 can be continuously reproduced without having to input the password every time.

Although the optical disk reproducing apparatus of this embodiment has been described using a roulette type optical disk reproducing apparatus, the present invention can be applied to a magazine type or rack type optical disk reproducing apparatus other than the roulette type.

[0063]

According to the present invention, in an optical disk reproducing apparatus for reproducing an optical disk, if there is a group of interactive programs in the middle of the reproduction, the reproduction of the optical disk can be performed without performing an input operation corresponding to the interactive program. An optical disk reproducing apparatus that can be continued can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an optical disk reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the optical disc reproducing apparatus of the embodiment.

FIG. 3 is a block diagram showing a configuration of an example of a conventional optical disc reproducing apparatus.

FIG. 4 is a flowchart showing the operation of a conventional optical disc reproducing apparatus.

[Explanation of symbols]

1 mechanical unit, 101 optical pickup, 102
Mechanical drive unit, 103 optical disk, 2 signal processing unit,
201 RF signal processing section, 202 servo processor section, 203 data processor section, 204 disk discriminating section, 3 application block section, 301 main video decoder section, 302 sub video decoder section, 303 N
TSC encoder section, 304 audio decoder section,
4 output unit, 401 analog video output unit, 402 analog audio output unit, 403 digital audio output unit, 5 system controller unit, 501 system controller, 503 password identification unit, 504 timer, 6 user interface block unit, 8
Remote controller transmitter 500 System controller

Claims (2)

[Claims] 1. An optical disk reproducing apparatus for reproducing an optical disk, comprising: reproducing means for reproducing data recorded on the optical disk for each group in a specified order; and inputting a response signal corresponding to an interactive program group. A control unit that controls to reproduce an interactive group when a response signal corresponding to a group of interactive programs reproduced by the reproduction unit is output from the operation unit; and a timer that outputs time information. The control unit, when the response signal is not output from the operation unit within a predetermined time based on the time information, interrupts reproduction of a group of interactive programs and reproduces a group next to the group. Optical disc reproducing apparatus characterized by controlling 2. The optical disk reproducing apparatus according to claim 1, further comprising: a storage unit that stores the response signal input from the operation unit in advance, wherein the control unit controls a program reproduced by the reproduction unit so that a track reproduced by the reproduction unit is an interactive program. An optical disc reproducing apparatus, wherein the control section reads out the response signal from the storage section when the group belongs to the group and handles the response signal as the response signal output from the operation section.