JPH05128710A - Disk player - Google Patents

Abstract

PURPOSE:To switch a picture to an internally stored function display picture even on the way of reproducing of a CD-DA disk. CONSTITUTION:The disk on which not only audio information but also picture information or the like is recorded is reproduced. A disk rotation driving means 23 which rotates and rives the disk, a display device 14 on which picture information is displayed, and a means which executes internally stored functions are provided. A means which displays the picture of internally stored functions on the display device 14 and a means which displays information related to the reproducing state of audio information and a picture including a button icon for internally stored function selection on the display device at the time of reproducing of audio information are provided. When the button icon for internally stored function selection is selected at the time of reproducing of audio information, the picture of internally stored functions is displayed on the display device 14 instead of information related to the reproducing state of audio information.

Description

Detailed Description of the Invention

[0001]

This invention relates to a CD-I (CD Int
The present invention relates to a disc player capable of reproducing an optical disc on which image information is recorded in addition to audio information such as a disc.

[0002]

2. Description of the Related Art In addition to audio data, image data (natural images, animation,
Computer graphics, etc.), text data, program data, etc. can be recorded and operated interactively C
A D-I system has been proposed. Such a CD-I
Since the system has a playback function for characters, images, voices, computer data, etc., AV consumer equipment centering on audio and video, electronic publishing centering on characters, database service centering on information files, interactive response It can be used for education and entertainment centered on, and is expected as a new type of media.

The CD-I player used in the CD-I system has various specifications in order to maintain compatibility and to be widely spread for home use. That is, in the CD-I player, the CPU is 68000.
A system (16-bit microprocessor developed by Motorola) is used, and as a real-time operating system for handling various files, a system based on the widely spread OS 9 is used. Then, an XY device and two trigger buttons are used as an input device, and two systems of audio and video are prepared as an output system. Further, the CD-I player is defined to be capable of reproducing a normal compact disc for music (called a CD-DA disc).

[0004]

By the way, this kind of C
Since the D-I disc player has a display for the image reproducing function, in order to be able to use this display stationarily, in addition to the disc reproducing function as described above, a clock function, a calendar function, Some have multiple functions, such as the world clock function, as built-in software.

However, in the conventional CD-I player, when a CD-DA disc is played back, like the ordinary compact disc player, the display shows the track number being played and the elapsed time of the song being played. However, it is inconvenient because the information regarding the above is displayed on the display and the screen with the built-in display function as described above cannot be displayed on the display.

An object of the present invention is to improve the above drawbacks and to provide a disc player which is easy to use.

[0007]

In order to solve the above-mentioned problems, the disc player according to the present invention reproduces a disc on which image information and the like are recorded in addition to audio information, by making reference codes of the embodiments described later correspond to each other. Disk rotation driving means 23 for rotating the disk, display 14 for displaying the image information, means for executing a built-in function, and displaying a screen of the built-in function on the display 14. , Information about the reproduction state of the audio information and the built-in function selection button icon 5 when the audio information is reproduced.
Means for displaying a screen including 1 to 54 on the display, and when the built-in function selecting button icons 51 to 54 are selected and operated during reproduction of the audio information, information about a reproduction state of the audio information is replaced. And means for displaying the screen of the built-in function on the display.

[0008]

With the above arrangement, when the button icon is accessed, the display image of the button icon is switched from the image in the normal state to the image in the pressed state in which the button icon is deviated, so that the button icon moves. Thus, it is possible to visually obtain the same operation feeling as when the switch operation is performed mechanically.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a disc player according to the present invention will be described below by taking a CD-I player as an example. In this case, [1] External configuration of the apparatus according to one embodiment of the present invention [2] CD-I format [3] Internal configuration of one embodiment of the present invention [4] Display screen description [5] Embodiment The operation will be described in the order of description.

[1] External Appearance of Device of One Embodiment of the Present Invention FIGS. 2 and 3 are views showing the overall structure of one embodiment of a CD-I player to which the present invention is applied.

2 and 3, the CD-I of this example is shown.
The player 1 is of a portable type. Therefore, for example, the display 14 formed of an LCD is integrated, and the player 1 is integrated into a circuit or uses chip parts.
The size and weight have been reduced. The overall size of this CD-I player is, for example, 140 mm in width and 170 m in length.
m and the thickness is 60 mm.

The CD-I player 1 comprises a player main body 2, an outer lid 15 and an inner lid 7 rotatably attached to the rear edge of the player main body 2. In the housing of the player main body 2, a disc drive unit for rotationally driving a disc (not shown) loaded therein,
A head drive unit for moving the optical pickup 20 in the radial direction of the disk, and a circuit board for processing a reproduction signal from the optical pickup 20 are housed. In addition, a computer including a 68000 CPU is housed.

On the front side surface 2a of the player main body 2,
Headphone jack 3, volume control dial 4, CD-
A DA key input section 41 is provided. A power switch 5 is arranged on the side surface of the player main body 2. Further, an open button 6 of the inner lid 7 is arranged on the upper side edge of the player main body 2.

The inner lid 7 is adapted to cover the upper surface side of the player main body 2, and the turntable 10 on the upper surface of the player main body 2 is provided at the center of the surface facing the player main body 2. Correspondingly, a chucking member 19 is arranged. With the inner lid 7 closed, the disc mounted on the disc mounting portion 9 and placed on the turntable 10 is
It is sandwiched between the chucking member 19 and the turntable 10.

When the open button 6 is pressed, the inner lid 7 is opened. The disc can be loaded / unloaded by opening the inner lid 7. The inner lid 7 is provided with a window portion 8. The window portion 8 is arranged apart from the attachment portion of the chucking member 19 and at a portion which does not face the pickup provided in the disc mounting portion 9 of the player main body portion 2. Even if a transparent member is fitted in the window portion 8 and the inner lid 7 is closed and the disc mounting portion 9 of the player main body portion 2 is covered by the inner lid 7, the inner portion is opened through the window portion 8. The disc mounting portion 9 can be seen through from the outer surface side of the lid 7. Therefore, the presence / absence of the disc in the disc mounting portion 9 and the confirmation of the rotation state of the disc can be visually and easily and directly performed.

An XY device 11 and trigger buttons 12a and 12b are arranged on the front edge of the inner lid 7.

The X-Y device 11 is designed so that the positions in the X and Y directions can be designated by pressing the portions deviated vertically and horizontally from the center. In addition to such an XY device 11, a pointing device such as a trackball, a mouse, or a joystick can be used.

The outer lid 15 is rotatably arranged with respect to the player main body 2 by means of a shaft support 13a. A pivotal support device is built in the shaft support 13a for the player body 2. As this rotation support device, a rotation support device for electric equipment, which the applicant of the present invention has previously filed (Japanese Patent Application Laid-Open No. H-2542)
No. 96) can be used. With this, the user can easily set the optimum opening / closing angle only by directly raising and lowering the outer lid 15 itself.

As a result, not only when the display 14 provided on the back surface of the outer lid 15 is viewed, but also when the inner lid 7 is opened and the disc is attached to or detached from the disc mounting portion 9 of the player body 2, the outer lid 15 is pressed. It is possible to easily attach / detach the disc without opening and rotating the inner lid 7 in a state where it does not interfere with the opening / closing operation of the inner lid 7. The outer lid 15 can also be opened and closed manually. The outer lid 15 can be opened up to an opening / closing angle of 90 degrees or more.
It should be noted that a battery mounting / accommodating portion (not shown) is formed on the rear surface side of the player main body 2 as with other electronic devices, and a battery having a predetermined capacity is mounted as a power source.

As described above, the back surface 16 of the outer lid 15 is exposed with the display 14 having a size of 4 inches, for example, so that the screen of the display 14 can be seen.
A display drive switch 17 is arranged on the back surface 16. By operating the display drive switch 17, it is possible to control on / off of the display 14.
The display 14 and the electric circuit of the player main body 2 are connected by a flexible wiring board 13.

[2] CD-I format In the CD-I player to which the present invention is applied, a CD-I disc and a CD-I / CD-DA disc (CD-I disc and CD-DA disc are used. It is possible to reproduce mixed discs) and CD-DA discs (compact discs for normal music reproduction). Here, the data format of the CD-I will be described.

[2] -1. Data Structure CD-I records data in a form based on a CD-ROM. The data recording unit is CD-RO
Like M, it is a block.

The capacity of one block is 2352 bytes. The recording capacity of the entire CD-I disc is 12 cm in diameter.
In the case of the disc, the size is 640 Mbytes.

There are two types of data structures of CD-I, form 1 and form 2, which correspond to mode 1 and mode 2 of the CD-ROM, respectively. In the mode 1 of the CD-ROM, an error detection code and an error correction code are added to one block of data so that strong error correction can be performed. Mode 2 in the CD-ROM does not have an error detection code and an error correction code, and allows large user data.

In the CD-I, the form 1 and the form 2 can be designated for each block, and the form 1 and the form 2 can be mixed in one disc.

The CD-I format differs from the CD-ROM format in that a sub-header of 8 bytes is provided at the beginning of the user data. In this sub-header, each block in which sound, images, and data are recorded is time-division multiplexed in block units, and in order to process these in real time, necessary data is double-written and stored. ..

That is, FIG. 4A shows the structure of Form 1. Form 1 has a sync at the beginning (12 bytes)
Is provided, followed by a header (4 bytes) and a subheader (8 bytes).
After this, user data (2048 bytes) is provided, and an error detection code EDC (4 bytes), P parity (172 bytes) for error correction, and Q parity (104 bytes) are added to this. Form 1 has improved error correction capability, and this form 1 is suitable for handling data such as character data and program data in which an error cannot be interpolated.

FIG. 4B shows the structure of Form 2. In the form 2, a sync (12 bytes) is provided at the beginning, a header (4 bytes) is provided subsequent to this, and a sub-header (8 bytes) is further provided. After this, user data (2324 bytes) is provided, and a reserve area (4 bytes) is further provided. This form 2
Is suitable for handling interpolable data such as audio data and video data.

As shown in FIG. 5, the sub-header added to the head of the user data includes a file number (2 bytes), a channel number (2 bytes), a sub mode (2 bytes) and a data type (2 bytes). ) And.

[2] -2. Audio Writing There are four modes for writing audio data of CD-I.

One mode has a sampling frequency of 4
Current C with 4.1 kHz and 16-bit quantization
It is the same recording method as D-DA. This mode is intended for ultra high fidelity playback.

In another one mode, the recording method is A
DPCM (adaptive differential PCM) is used. The sampling frequency is 37.8 kHz and the number of quantization bits is 8 bits. In this mode, the sound quality of an LP record can be reproduced. Playback time is 2 hours for stereo and 4 hours for monaural. This mode is intended for high fidelity playback.

In another one mode, the recording method is A
DPCM is used. Sampling frequency is 37.8
kHz and the number of quantization bits are 4 bits. In this mode, sound quality similar to FM broadcasting can be reproduced. The reproduction time is 4 hours for stereo and 8 hours for monaural. This mode is intended for high-fidelity reproduction for a long time.

In another one mode, as a recording method,
ADPCM is used. The sampling frequency is 18.
9 kHz, the number of quantization bits is 4 bits. The playback time is 8 hours for stereo and 16 hours for monaural. This mode is intended for speech playback.

[2] -3. Video writing Image data is processed as follows, depending on the type of image data.

In the case of a natural image, the sampling frequency of the luminance signal Y is 7.6 MHz, the sampling frequency of the color difference signals U and V is 3.8 MHz, and sampling is performed at a ratio of 4: 2: 2. Then, each bit is compressed into 4 bits and recorded, and is set to 8 bits during reproduction.

In the case of graphics, a CLUT (color lookup table) is used. CLUT graphics has 256 colors (8 bits), 128 colors (7
There are 3 modes of 16 bits (4 bits) and 16 colors,
You can select and use the required color from 16 million colors.

In the case of animation, a run length code is used. This is to compress image data using color information and the length between pixels. Using such code, you can achieve full screen animation.

[2] -4. Disc In the CD-I disc, mechanical dimensions such as outer diameter dimension, center hole dimension and thickness, optical parameters such as refractive index and reflectance, recording parameters such as disc rotation direction, recording linear velocity, track shape and track pitch. The usage environment and the like are all the same as those of a normal compact disc (CD-DA) for music.

Then, it is determined whether the disc is a CD-I disc by the TOC (Table Of C
It is made clear from the contents of ontents). That is, in the CD-I disc or the CD-I / CD-DA disc, the PSEC at the time of (POINT = A0) is 10. On the other hand, with other discs, (POIN
PSEC is set to 00 when T = A0). Therefore, from PSEC when (POINT = A0), CD
It can be determined whether the disc is an I disc, a CD-I / CD-DA disc, or another disc. The control field of (POINT = A0, A1, A2) of the CD-I disc is (01 × 0). CD-I / CD-D
The (POINT = A0) control field of the A disc is always (01 × 0), and the other control fields are (00 × 0). Therefore, from the control field, the CD-I disc or the CD-I
/ CD-DA disc can be discriminated.

Then, the CD-DA disc and the CD-D
In the case of a disc having a portion to be treated as an A disc, the TOC in the lead-in area of the disc contains information on tracks (for the number of songs) relating to audio information, total playing time of each song, total playing time of the entire disc, etc. The time information of is recorded.

[2] -5. Since the hardware CD-I includes audio data and requires high-speed processing in real time, processing in machine language is performed. As a CPU for that purpose, the 68000 series, which is a 16-bit CPU developed by Motorola, is specified. In addition, CE-RTO that handles various files
S (real-time operating system) is O
It is based on S9, and its program is incorporated in the system by ROM. As an input device, at least X
-Y device and two trigger buttons are prepared. For output, two systems of audio and video are prepared. The CD-I player is a CD-DA for music.
Have been made playable.

[3] Internal Structure of One Embodiment of the Present Invention FIG. 1 shows the internal structure of a CD-I player 1 to which the present invention is applied. In FIG. 1, the disk 21
Is CLV (constant linear velocity) by the spindle motor 23
It is rotated by. The rotation of the spindle motor 23 is controlled by the spindle servo circuit 24 based on the clock reproduced by the CD reproducing circuit 30. The spindle servo circuit 24 is also supplied with the output of the system controller 22.

The recording signal of the disk 21 is sent to the optical head 25.
Will be played. The optical head 25 is supported by a biaxial device. This two-axis device has a focus
In the tracking servo circuit 27, servo is applied to the optical head 25 in two axes of the focus direction and the tracking direction based on the output of the photo detector.

Further, the optical head 25 uses the slide feed mechanism 26 which uses, for example, a linear motor to drive the disk 2
1 can be moved in the radial direction. The slide feeding mechanism 26 is controlled by a sled servo circuit 28. The sled servo circuit 28 includes the system controller 22.
Are connected. The slide feed mechanism 26 allows the optical head 25 to access a desired track position.

The output of the optical head 25 is supplied to the CD reproducing circuit 30 via the RF amplifier 29. The CD reproduction circuit 30 includes a bit clock reproduction circuit, an EFM demodulation circuit,
It is composed of a CIRC error correction circuit and the like. In the CD reproducing circuit 30, the output of the optical head 25 is EFM demodulated and subjected to error correction processing. The CD reproduction circuit 30 is controlled by the system controller 22.

The output of the CD reproducing circuit 30 is supplied to the CD-ROM reproducing circuit 31. CD-ROM reproduction circuit 31
Is composed of a sync detection circuit, a descramble circuit, an error correction circuit, and the like. The CD reproduction circuit 30 detects the sync and descrambling. Then, the header address is checked and the target block is accessed. Then, in the case of form 1, error correction processing is further performed. This CD-ROM reproducing circuit 31
It is controlled by the system controller 22.

An input is given to the system controller 22 from the input device 32. The input device 32 includes an XY device 11 and two drigger buttons 12a and 12b. In addition, the system controller 22 has a CD-D.
Input is also given from the A key input unit 41. This CD-
A CD-DA disc can be reproduced by operating the keys of the DA key input unit 41.

Reference numeral 33 is a CPU for controlling the CD-I system. As the CPU 33, 6800
The 0 series is used. A master controller 34 is connected to the CPU 33. The CPU 33 and the system controller 22 are bidirectionally connected. CP
A bus 35 is derived from U33. The CPU 33
The master controller 34 and the master controller 34 may be integrated into one chip.

The data reproduced by the CD-ROM reproducing circuit 31 is sent to the bus 35. A RAM 37a is connected to the bus 35 via video controllers 36a and 36b, respectively.
And 37b are connected. The bus 35 also includes a system ROM 38, a backup non-volatile RAM 39,
The work area RAM 40 is bidirectionally connected. An audio decoder 42 is connected to the bus 35. During reproduction of the CD-DA disc, the CD-ROM reproduction circuit 31 is bypassed and the data from the CD reproduction circuit 30 is supplied to the bus 35.

The image data of the data reproduced by the CD-ROM reproducing circuit 31 is under the control of the CPU 33.
It is supplied to the video controllers 36a and 36b. The video controllers 36a and 36b form a video signal based on the image data. This video signal is supplied to the video synthesizer 43. The video synthesizer 43 switches or combines the video signal from the video controller 36a and the video signal from the video controller 36b. This video synthesizer 4
The output of No. 3 is supplied to the display 14 via the LCD drive circuit 44. The display 14 is driven by the LCD
It can be turned on / off by the drive switch 17.

The audio data of the data reproduced by the CD-ROM reproducing circuit 31 is supplied to the audio decoder 42 under the control of the CPU 33. When the audio data is ADPCM, the audio decoder 42 decodes the ADPCM. The decoded audio data is supplied to the D / A converter 45 and converted into an analog signal. Then, through the low pass filter 46 and the amplifier 47, the headphone output terminal 3
Is output from. The audio signal level output from the headphone output terminal 3 can be set by the volume adjustment dial 4.

[4] Description of Display Screen In this case, the CD-I player 1 has built-in software. This software is started immediately after the power switch 5 is turned on and performs various internal checks. After that, if a disc is inserted, the type of the inserted disc is determined, and as will be described later, the display 14 displays
CD-I disc, CD-I operation screen, CD
-In case of DA disc, CD-DA operation screen, CD
-CD-I / CD-for I / CD-DA discs
A DA operation screen (a screen that allows switching between the CD-I operation screen and the CD-DA operation screen) is displayed.

In this example, a plurality of built-in software functions and their display screens are provided so that the CD-I player can be used in a stationary manner even when the disc is not inserted. In the case of this example, the built-in function display screen has four screens of a clock, a calendar, a world clock, and a menu. The four built-in function display screens can be switched by instructing the button icons 51 to 54 displayed on the display 14 by the XY device 11 to select and specify them.

That is, FIG. 6 is an example of the built-in function display screen, and the area 57 below the button icons 51 to 56 is an area in which the contents of the display screen when each button icon is selected are displayed. 51 is a clock icon, 52 is a calendar icon, 53 is a world clock icon, 5
Reference numeral 4 is a menu icon. Also, 55 is a CD-D
A selection icon, 56 is a CD-I selection icon,
These icons 55 and 56 are not displayed on the display 14 when the disc is not loaded.

In the area 57 of the display 14, the present year, month, day, hour, minute, second are displayed in the case of the built-in function clock. When it is a calendar, the calendar for that month is displayed, and when it is a world clock, the world map and the name of the specified city within it, the current year and month of that city,
The day, hour, minute and second are displayed. Further, in the case of the menu, only the icons 51 to 56 are displayed and nothing is displayed in the area 57, which is a non-display screen.

In the case of this example, the user can set the initial screen for which built-in function screen is displayed in the screen area of the display 14 when the power is turned on without the disc mounted. Has been The player 1 of this example has two trigger buttons 12a and 12a immediately after a specific operation input, for example, the power switch 5 is turned on.
Pressing 2b at the same time enters this initial setting mode. At that time, a screen of the control panel as shown in FIG. 7 is displayed on the display 14.

As shown in the screen of FIG. 7, in this initial setting mode, in this example, the initial screen is set to the screen of the clock, calendar, world clock, or menu, and the clock function is set. Setting of whether the clock display in 12 hours display or 24 hours display in, the calendar display when the calendar function starts from Sunday to Monday,
It is also possible to set whether or not to automatically start the CD-I disk. The setting data is stored in the RAM 22M of the system controller 22. In addition, 66 is an end button icon,
Selecting this exits this initialization mode.

Next, FIG. 8A shows an example of the CD-I operating screen. In this CD-I operating screen, the icons 51 to 54 are displayed.
In addition to the CD-I selection icon 56, a disc rotation image 58, a disc title display 59, and a CD-I start command selection button icon 60 are displayed in the area 57. Then, on this screen, the user can load and start the CD-I disc (application) by selecting and operating the icon 60 with the XY device 11 and the trigger buttons 12a and 12b. At this time, the built-in software releases the used memory and abandons the control for the CD-I disk (application). When the CD-I disc is started on the CD-I operation screen, the reproduced image is displayed on the entire display 14 according to the program of the CD-I disc.

FIG. 8B shows an example of the CD-DA operating screen. In this CD-DA operating screen, icons 51 to
In addition to 54, a CD-DA selection icon 55 is displayed, and a disk rotation image 58 is displayed in the area 57.
A button icon 61 for selecting a performance mode, a button icon 62 for selecting repeat on / off, a button icon 63 for selecting a main time display, a reproduction track number display 64, and a performance of a music being reproduced. elapsed time,
A time display 65 regarding the remaining time and the like is displayed.

In this case, the time display is the main time display 65.
It is composed of a combination of a and the sub time display 65b, both of which are displayed as fractions, and the main time display 65a is represented by a larger number than the sub display 65b.
The button icon 63 allows the main time display to be selected as described below. The configuration related to this time display will be described later.

Then, the icons 61 to 63 on this screen are displayed.
The user selects the XY device 11 and the trigger button 1
It is possible to switch the performance mode and the like by performing a selection operation with 2a and 12b. Further, since the same operability as that of a normal CD player is provided, the CD-DA disc can be reproduced by operating the CD-DA key device 41 of the player main body 2.

FIG. 8C shows an example of the CD-I / CD-DA operating screen. On this CD-I / CD-DA operating screen, both the icons 55 and 56 are displayed on the display 14. And the loaded disc is CD-I
In the case of a / CD-DA disc, CD-I and CD-DA can be designated and selected by the icon 55 or 56, and a CD-I operation screen and a CD-DA are displayed in the area 57.
Either of the operation screens can be switched and displayed. The state of FIG. 8C is the CD-I operation screen.

In the case of this example, the CD-I operation screen and C
Button icons 51 to 54 are displayed on the display 14 on the D-DA operation screen. Therefore, by selecting and selecting any of these icons 51 to 54 by the XY device 11 and operating the trigger button, it is possible to switch from the operation screen of FIGS. It is possible to switch to the built-in function display screen even during reproduction of a portion handled as a DA disc or a CD-DA disc.

[5] Description of Operation of Embodiment FIG. 9 and FIG. 10 are flowcharts of an example of the operation of this example, and this operation will be described below. This shows the operation when the display 14 is turned on.

That is, when the power switch 5 is turned on and the power is turned on, the flow chart of this example starts from step 201. Then, the process proceeds to step 202, and it is determined whether or not the system file (CSD file) in the non-volatile RAM 39 (which is non-volatile by the backup battery) is normal. This judgment is made by opening the CSD file in the nonvolatile RAM 39. If the file can be opened, it is determined that the CSD file is normal, and the process proceeds to step 204. If the file cannot be opened, the system normally executes CS.
It is determined that the D file has not been copied to the nonvolatile RAM, and the process proceeds to step 203.

The reason why the CSD file is not normally copied is that there are many or large capacity files in the non-volatile RAM and the capacity for copying the CSD file cannot be secured. Therefore, in step 203, the file erasing screen of the nonvolatile RAM 39 is displayed to prompt the user to erase the file. The user erases the file,
It is internally reset when the capacity to copy the CSD file is secured. After the reset, the status will be the same as that immediately after the power is turned on.
Go to 02.

In step 204, it is judged whether or not there is a button input to shift to the above-mentioned setting mode. That is, it is determined whether or not the trigger buttons 12a and 12b are simultaneously pressed, and when it is determined that they are simultaneously pressed, the process proceeds to step 205 of the initial setting mode, and if not, the process proceeds to step 206.

In step 205, the above-mentioned flow chart of the initial setting mode is executed, the above-mentioned setting items such as the initial screen, the clock display, the calendar, the world clock, etc. are set, and the setting information thereof is stored in the system controller 2.
2 is stored in the built-in nonvolatile RAM 22M.

When the initial setting mode of step 205 is completed, the routine proceeds to step 210, where the display 14
Area 57 of the built-in function display screen as a display screen of
Displays a blank menu screen, then step 21
Go to 1.

In step 204, the trigger button 1
When it is determined that the operations of 2a and 12b are not performed, the process proceeds to step 206, the menu screen is displayed as the display screen of the display 14, and then the step 2 is performed.
Proceed to 07. In step 207, the user makes various settings in the initial setting mode, and the built-in RAM 22
It is determined whether or not the content of the data stored in M is correct. This judgment is made by using the consistency between the fixed value written in the internal RAM 22M and the checksum. If the contents of RAM 22M are correct, step 21
If it is incorrect, the process proceeds to step 208.

In step 208, the built-in RAM 22
The default value including the date and time setting value is written in M,
A message asking whether or not to make various settings in the initial setting mode is displayed on the display 14. Then, when the user inputs to perform the initial setting, step 2
In step 09, the initial setting mode is entered as in step 205, each setting is performed as described above, and the set data is written in the built-in nonvolatile RAM 22M.
If the user does not make the setting, the process proceeds to step 210 and the menu screen is displayed on the display 14.

Then, in step 211, it is determined whether or not the inner lid 7 is open. If the inner lid 7 is open, it is determined that the disc is not mounted and the process proceeds to step 217 to enter the screen display mode of the built-in function display system (referred to as the clock system screen mode). At this time, the initial screen is set in the initial setting mode. The built-in function display screen set as is displayed in the area 57.

When it is determined in step 211 that the inner lid 7 is closed, the process proceeds to step 212, and it is determined whether or not the disc is mounted in the disc mounting portion. Then, if it is determined that the disc is not loaded, the process proceeds to step 217, and the clock system screen mode is set. If it is determined that the disc is loaded, the process proceeds to step 213. In this step 213, the TOC at the innermost circumference of the disc is accessed, and the type of the disc is determined from the data of this TOC.

In this case, the disc is CD-I or C
Those treated as DI, CD-DA, or CD-DA
, CD-I / CD-DA, or CD-
It is classified into four types other than those handled as I / CD-DA. Then, in this step 213, the CD-I,
If it is determined that the disc is a CD-DA, a CD-ICD-DA, or a disc handled as them, step 2
If it is determined that the disc is a disc other than those described above, the process proceeds to step 214.

At step 214, a message is displayed on the display 14 to inform the user that the disc cannot be handled by the CD-I player of this example. Then, it progresses to step 215.

In step 215, the message displayed in step 214 is displayed and the operation waits until the inner lid 7 is opened. When the inner lid 7 is opened, the process proceeds to step 217 in the mode of the clock system screen, and the display 14 is displayed. The display shifts to the default built-in function display screen.

In the clock system screen mode of step 217, the four built-in functions can be selected and switched to the built-in function display screen by selecting and designating the icons 51 to 54. Although the screen display does not change even if the inner lid 7 is opened while the clock system screen is displayed, if it is determined in step 219 that the inner lid 7 is closed, a disc may have been inserted. Therefore, the process returns to step 212, and it is checked whether or not the disc is loaded.

At step 213, as a result of discriminating the type based on the data of the TOC of the disc, CD-I, CD-DA,
After it is determined that the disc is a CD-I / CD-DA or a disc to be handled as these, in step 216, the operation screen as described above corresponding to the disc discriminated (referred to as a play system screen mode). Is the display 1
4 is displayed.

On the CD-I operation screen in the play screen mode, the CD-I disc can be loaded and started as described above. Also, CD-DA
On the operation screen, the CD-DA key input section 41 of the main body section 2 is operated in the same manner as a normal CD player.
The DA disc can be reproduced. Then, as will be described later, during reproduction, a combination of time display regarding the performance time is displayed on the display 14, as shown in FIG. 8B. Further, on the CD-I / CD-DA operating screen, the CD-I operating screen and the CD-DA operating screen can be switched by selecting the icons 55 and 56.

Also in this play system screen mode, by selecting one of the icons 51 to 54, it is possible to switch to the selected built-in function display screen in the clock system screen mode. Similarly, at this time, in the clock system mode in which the built-in function display screen is displayed, the CD-DA icon 55 or the CD-I icon is displayed.
Since the icon 56 or both are displayed on the screen of the display 14, it is possible to switch to the selected operation screen of the play screen by selecting the icons 55 and 56.

Then, if the inner lid 7 is opened while the play screen of step 216 is displayed, this is discriminated in step 218, and the routine proceeds to step 217. At this time, the built-in function screen displayed on the display 14 is the last-displayed built-in function screen during power-on. After the power is turned on, a direct play screen is displayed, and if there is no lastly displayed built-in display screen, the initial screen set in the initial setting mode is displayed.

[0083]

As described above, according to the present invention, the built-in function display screen can be displayed on the display even during the reproduction of the CD-DA disc. Moreover, the screen switching can be performed only by selecting and designating the button icon displayed on the display, so that the user can appropriately switch and select as necessary.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a disc player according to the present invention.

FIG. 2 is a diagram showing an embodiment of the configuration of a disc player device according to the present invention.

FIG. 3 is a diagram showing one embodiment of the configuration of a disc player device according to the present invention.

FIG. 4 is a diagram for explaining a signal format of a CD-I disc.

FIG. 5 is a diagram for explaining a signal format of a CD-I disc.

FIG. 6 is a diagram showing an example of a built-in function screen.

FIG. 7 is a diagram showing an example of a display screen in an initial setting mode.

FIG. 8 is a diagram showing an example of a disc operation screen.

FIG. 9 is a diagram showing a part of a flowchart of an embodiment of the operation of the disc player according to the present invention.

FIG. 10 is a diagram showing the rest of the flowchart of one embodiment of the operation of the disc player according to the present invention.

[Explanation of symbols]

 11 XY device 12a, 12b Trigger button 14 Display 22 System controller 23 Spindle motor 25 Optical head 30 CD reproducing circuit 31 CD-ROM reproducing circuit 33 CPU 36a, 36b Video controller 37a, 37b Video RAM 41 CD-DA key input section 42 audio decoder 48 clock circuit 51-56 button icon for screen selection 61-63 button icon for selection of performance mode etc.

Claims (1)

[Claims] 1. A disc rotation driving means for rotating and driving a disc in which image information and the like are recorded in addition to audio information, a display for displaying the image information, and a built-in function. To display a screen of the built-in function on the display, and a screen including the information about the reproduction state of the audio information and the built-in function selection button icon at the time of reproducing the audio information. Means for displaying the screen of the built-in function on the display instead of the information about the reproduction state of the audio information when the button icon for selecting the built-in function is selected during reproduction of the audio information. Disc player.