JP3304997B2 - Disc player, signal processing device, and display method in signal processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a CD-I (CD Int)
eractive) a disc player, such as a disc, a signal
The present invention relates to a processing device and a display method thereof .

[0002]

2. Description of the Related Art Audio data as well as image data (natural images, animations,
Computer graphics, etc.), text data, program data, etc., which can be operated interactively
DI systems have been proposed. Such a CD-I
Since the system has a function of reproducing characters, images, voices, computer data, etc., it can be used for audio-visual and video-based AV consumer devices, text-based electronic publishing, information file-based database services, and interactive responses. It can be used for education, entertainment, etc. centered on, and is expected as a new form of media.

Various specifications have been set for the CD-I player used in the CD-I system in order to maintain compatibility and to make it widely available for home use. That is, in the CD-I player, 68000 is used as the CPU.
A system (a 16-bit microprocessor developed by Motorola) is used, and a widely used real-time operating system based on the OS 9 is used as a real-time operating system for handling various files. As an input device, an XY device and two trigger buttons are used, and as an output system, two systems of audio and video are prepared. Further, the CD-I player is defined so that a normal music compact disc can be reproduced.

[0004]

By the way, this kind of C
In the DI disk player, a display is provided for an image reproducing function. In order to use this display in a stationary manner, in addition to the disk 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.

[0005] Considering the convenience of the user who uses the stationery, it is preferable that the display screen of the built-in function displayed on the display first after the player is turned on can be selected by the user.

However, in this type of conventional disc player, priorities are assigned to the display of the plurality of built-in functions in advance, and the display order is not determined at random. Therefore, the user cannot set the display screen of the built-in function, which is first displayed on the display after the power is turned on, to a desired one, which is inconvenient.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a disc player in which a user can set a display screen of a built-in function which is displayed first after the power is turned on.

[0008]

In order to solve the above-mentioned problems, a disk player according to the present invention comprises a disk reproducing unit for reproducing a disk, and a plurality of built-in units other than a reproducing function.
A built function executing unit for executing capacity, and an operation unit operated by a user, and a control unit for controlling the operation of the disc reproducing unit or built function execution unit based on an input from the operation unit, the control A memory for storing data relating to an initial setting mode set by using the operation unit, wherein the control unit sets the disc playback unit to a non-playback state after power is turned on. In some cases, data regarding the initial setting mode is read from the memory , and among the plurality of built-in functions based on the read data regarding the initial setting mode.
A display signal for displaying a screen of one of the built-in functions selected from the above is output.

[0009]

The user can enter the initial setting mode by performing a specific operation input. In this initial setting mode, for example, when one of the plurality of built-in function screens to be preferentially displayed on the display is selected and set , the set priority information is stored in the memory.

When the first built-in function screen is displayed after the power is turned on, the set selection information of the built-in function screen is stored in a memo.
Read Li or, et al., Built function screen specified by the selection information is displayed on the display.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One 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] Appearance configuration of the device according to an embodiment of the present invention [2] Format of CD-I [3] Internal configuration of an embodiment of the present invention [4] Description of display screen [5] Initial setting Description of the mode [6] Description of the operation of the embodiment The order will be described.

[1] Appearance Configuration of Apparatus According to One Embodiment of the Invention FIGS. 2 and 3 show the overall configuration of one embodiment of a disc player to which the invention is applied.
This is an example of an I-player.

Referring to FIGS. 2 and 3, the CD-I of this example is shown.
The player 1 is of a portable type. For this reason, for example, a display 14 composed of an LCD is integrated, and an integrated circuit and the use of chip components are used.
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 a thickness of 60 mm.

The CD-I player 1 includes a player main body 2 and an outer lid 15 and an inner lid 7 rotatably attached to a rear edge of the player main body 2. A disk drive unit for rotating and driving a disk (not shown) loaded in the housing of the player main body 2;
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 therein. Also, a computer comprising a 68000-series CPU is stored.

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

The inner lid 7 covers the upper surface side of the player main body 2, and a central portion on the side facing the player main body 2 has a turntable 10 on the upper surface of the player main body 2. A chucking member 19 is provided correspondingly. When the inner lid is closed, the disk mounted on the disk mounting part 9 and mounted on the turntable 10 is sandwiched between the chucking member 19 and the turntable 10.

When the open button 6 is pressed, the inner lid 7 is opened. By opening the inner lid 7, the loading / unloading of the disk can be performed. The inner lid 7 is provided with a window 8. The window 8 is provided at a position away from the mounting portion of the chucking member 19 and not facing the pickup provided on the disc mounting portion 9 of the player main body 2. A transparent member is fitted into the window 8, and even if the inner lid 7 is closed and the disk mounting portion 9 of the player body 2 is covered by the inner lid 7, The disk mounting portion 9 can be seen through from the outer surface side of the lid 7. For this reason, it is possible to easily and directly visually confirm the presence or absence of the disk in the disk mounting unit 9 and the rotational state of the disk.

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

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

The outer lid 15 is provided rotatably with respect to the player main body 2 by means of a shaft support 13a. The pivot support 13a for the player main body 2 incorporates a rotation support device. As this rotation support device, a rotation support device for electric equipment, which the applicant of the present invention previously filed (Japanese Patent Laid-Open No. 2542/1990).
No. 96) can be applied. Thus, the user can easily set the optimum opening / closing angle only by directly raising and lowering the outer lid 15 itself.

Thus, the inner lid 7 is opened and the outer lid 15 is pressed when the disc is attached to or detached from the disc mounting section 9 of the player main body 2 when the display 14 provided on the back surface of the outer lid 15 is viewed. Therefore, the disk is opened and rotated to a position where the opening and closing operation of the inner lid 7 is not hindered, and is stopped and held in a state where the disk is rotated. The outer lid 15 can also be manually opened and closed. The outer lid 15 can be opened up to an opening and closing angle of 90 degrees or more.
On the rear side of the player main body 2, a battery storage (not shown) is formed similarly to other electronic devices, and a battery having a predetermined capacity is mounted as a power supply.

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

[2] Format of CD-I In a CD-I player to which the present invention is applied, a CD-I disc, a CD-I / CD-DA disc (a CD-I disc and a CD-DA disc, It is possible to play back mixed discs and CD-DA discs (compact discs for normal music playback). 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. 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.
640 Mbytes in the case of the above-mentioned disk.

There are two types of data structures of the 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 powerful error correction can be performed. Mode 2 in the CD-ROM has no error detection code and no error correction code, and allows a large amount of user data.

In the CD-I, form 1 and form 2 can be specified for each block, and form 1 and form 2 can be mixed on one disk.

The CD-I format is different from the CD-ROM format in that an 8-byte subheader is provided at the head of user data. In this sub-header, necessary data is double-written and stored in order to perform time-division multiplexing of each block in which sound, image, and data are recorded in block units and to process these in real time. .

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

FIG. 4B shows the structure of Form 2. In Form 2, a sync (12 bytes) is provided at the head, followed by a header (4 bytes), and a sub-header (8 bytes). 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 subheader 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). ).

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

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

In another mode, the recording method is A
DPCM (Adaptive Difference PCM) is used. The sampling frequency is 37.8 kHz and the number of quantization bits is 8 bits. In this mode, sound quality comparable to LP records can be reproduced. The playback time is 2 hours for stereo and 4 hours for monaural. This mode is intended for hi-fi playback.

In another mode, the recording method is A
DPCM is used. The sampling frequency is 37.8
kHz, the number of quantization bits is 4 bits. In this mode, sound quality comparable to FM broadcasting can be reproduced. The playback time is 4 hours for stereo and 8 hours for monaural. This mode is intended for long-time Hi-Fi playback.

In another 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 reproduction.

[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 recorded after being compressed to 4 bits, and becomes 8 bits at the time of reproduction.

In the case of graphics, a CLUT (color lookup table) is used. CLUT graphics have 256 colors (8 bits) and 128 colors (7
Bit), 16 modes (4 bits)
The required colors can be selected and used from 16 million colors.

In the case of animation, a run length code is used. In this method, image data is compressed using color information and the length between pixels. Using such a code, full-screen animation can be realized.

[2] -4. Discs For CD-I discs, mechanical parameters such as outer diameter dimension, center hole dimension, and thickness, optical parameters such as refractive index and reflectivity, 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 disk (CD-DA) for music.

Whether or not the disc is a CD-I disc is determined by the TOC (Table Of C) in the lead-in area of the disc.
ontents). That is, for a CD-I disc or a CD-I / CD-DA disc, the PSEC at (POINT = A0) is set to 10. On the other hand, with other discs, (POIN
PSEC at the time of T = A0) is set to 00. Therefore, from PSEC at the time of (POINT = A0), CD
-It is possible to determine 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 set to (01 × 0). CD-I / CD-D
The control field of (POINT = A0) on the A disk is always (01 × 0), and the other control fields are (00 × 0). Therefore, the CD-I disc or the CD-I
/ CD-DA disc.

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

[3] Internal Configuration of One Embodiment of the Present Invention FIG. 6 shows the internal configuration of the CD-I player 1 to which the present invention is applied. In FIG.
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 a clock reproduced by the CD reproduction circuit 30. Further, an output of the system controller 22 is supplied to the spindle servo circuit 24.

The recording signal of the disk 21 is transmitted to the optical head 25.
Will be played back. The optical head 25 is supported by a biaxial device. This two-axis device has focus and
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 photodetector.

The optical head 25 is driven by a slide feed mechanism 26 using, for example, a linear motor.
1 can be moved in the radial direction. The slide feed mechanism 26 is controlled by a thread servo circuit 28. The thread servo circuit 28 includes the system controller 22
Is 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 a CD reproducing circuit 30 via an RF amplifier 29. The CD reproduction circuit 30 includes a bit clock reproduction circuit, an EFM demodulation circuit,
It comprises 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 a CD-ROM reproducing circuit 31. CD-ROM playback circuit 31
Is composed of a sync detection circuit, a descrambling circuit, an error correction circuit, and the like. The sync is detected by the CD reproducing circuit 30, and the scramble is released. Then, the header address is checked, and the target block is accessed. Then, in the case of Form 1, an error correction process 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. The system controller 22 includes a CD-D
An input is also provided from the A key input unit 41. This CD-
By operating the DA key input unit 41, a CD-DA disc can be reproduced.

Reference numeral 33 denotes a CPU for controlling the CD-I system. As the CPU 33, 6800
Type 0 is used. The master controller 34 is connected to the CPU 33. Further, the CPU 33 and the system controller 22 are bidirectionally connected. CP
A bus 35 is derived from U33. Note that 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 a bus 35. The bus 35 has a RAM 37a via video controllers 36a and 36b, respectively.
And 37b are connected. The bus 35 has a system ROM 38, a non-volatile RAM 39 for backup,
The work area RAM 40 is bidirectionally connected. The audio decoder 42 is connected to the bus 35. When reproducing a CD-DA disk, the CD-ROM reproduction circuit 31 is bypassed, and 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 transferred under the control of the CPU 33.
It is supplied to 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 3 is supplied to the display 14 via the LCD drive circuit 44. The display 14 is driven by an 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 an 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 is converted into an analog signal. Then, via the low-pass filter 46 and the amplifier 47, the headphone output terminal 3
Output from The audio signal level output from the headphone output terminal 3 can be set by a 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. Thereafter, if a disc is inserted, the type of the inserted disc is determined, and as described later,
In the case of a CD-I disc, a screen for operating the CD-I, a CD
-For DA disk, CD-DA operation screen, CD
-In the case of an I / CD-DA disc, a CD-I / CD-
A DA operation screen (a screen capable of switching between a CD-I operation screen and a CD-DA operation screen) is displayed.

In this example, a plurality of built-in software functions and a display screen 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 selecting and specifying the button icons 51 to 54 displayed on the display 14 by the XY device 11.

That is, FIG. 7 shows an example of the built-in function display screen. 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 denotes a menu icon. 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 current year, month, date, hour, minute, and second are displayed in the case of a clock having a built-in function. For a calendar, the calendar for that month is displayed. For a world clock, the world map and the name of the specified city, the current year, month,
Day, hour, minute and second are displayed. Further, in the case of a menu, only the icons 51 to 56 are displayed, and nothing is displayed in the area 57, and a non-display screen is displayed.

FIG. 9A shows an example of a CD-I operation screen. In the CD-I operation screen, icons 51 to 54 are displayed.
In addition, a CD-I selection icon 56 is displayed, and in the area 57, a disk rotation image 58, a disk title display 59, and a CD-I start command selection button icon 60 are displayed. Then, on this screen, the user can select and operate the icon 60 with the XY device 11 and the trigger buttons 12a and 12b, thereby loading and starting the CD-I disc (application). At that time, the built-in software releases the used memory for the CD-I disk (application) and relinquishes control. When the CD-I disc is started on the CD-I operation screen, a reproduced image is displayed on the entire display 14 according to the program of the CD-I disc.

FIG. 9B is an example of a CD-DA operation screen. In the CD-DA operation screen, icons 51 to 51 are displayed.
54, a CD-DA selection icon 55 is displayed, and in a region 57, a rotation image 58 of the disc,
A button icon 61 for selecting a play mode, a button icon 62 for selecting repeat on / off, a button icon 63 for selecting a main display time, a reproduction track number display 64, an elapsed time during reproduction, A time display 65 relating to the remaining time and the like is displayed. When the user selects and operates the icons 61 to 63 on this screen with the XY device 11 and the trigger buttons 12a and 12b, the performance mode and the like can be switched. Further, in order to provide the same operability as a normal CD player, the CD-DA key device 41 of the player main body 2 is provided.
By the operation described above, a CD-DA disc can be reproduced.

FIG. 9C shows an example of a CD-I / CD-DA operation screen. On the CD-I / CD-DA operation screen, icons 55 and 56 are displayed on the display 14. And the loaded disc is a CD-I
In the case of a / CD-DA disc, a CD-I and a CD-DA can be designated and selected by an icon 55 or 56, and a CD-I operation screen and a CD-DA
Any one of the operation screens can be switched and displayed. The state of FIG. 9C is a CD-I operation screen.

In the case of this example, the CD-I operation screen and C
In the D-DA operation screen, button icons 51 to 54 are displayed on the display 14. Therefore, any one of these icons 51 to 54 can be designated and selected by the XY device 11, and the trigger button can be operated to switch from the operation screens of FIGS. 9A to 9C to the built-in function display screen. -It is possible to switch to the built-in function display screen even during playback of a part handled as a DA disk or CD-DA disk.

[5] Description of Initial Setting Mode In this case, when the power is turned on with no disk loaded, an initial screen for displaying which built-in function screen is displayed in the screen area of the display 14 is displayed. The setting can be performed by the user. Player 1 of this example
When the two trigger buttons 12a and 12b are simultaneously pressed immediately after a specific operation input, for example, the power switch 5 is turned on, this initial setting mode is set. At that time, FIG.
The screen of the control panel shown in FIG.

As shown in the screen of FIG. 8, in this initial setting mode, in this example, in addition to setting the initial screen to be any one of a clock, a calendar, a world clock, and a menu, a clock function Setting whether the clock display in 12 hours display or 24 hours display, setting whether the calendar display when the calendar function starts on Sunday or Monday,
It is also possible to set whether to automatically start the CD-I disc or not. Note that 66
Is an end icon, and when selected, exits this setting mode.

FIG. 1 shows a flowchart of an example of the initial setting mode. That is, as described above,
When the power switch 5 is turned on and the two trigger buttons 12a and 12b are simultaneously pressed, step 1
The program proceeds to 01 and shifts to this initial setting mode. And
In step 102, it is determined what the setting item selected by the XY device 11 is.

For example, when the setting of the initial screen has been selected, the process proceeds from step 102 to step 103, in which it is determined whether or not the trigger button 12a or 12b has been pressed. The designation of the built-in function display screen that is displayed first after the input is turned on, that is, the setting of the initial screen changes cyclically in the order of menu, clock, calendar, and world clock. If the trigger button 12a or 12b has not been pressed, the process returns to step 102.

If the setting of the clock display has been selected, the process proceeds from step 102 to step 105, where it is determined whether or not the trigger button 12a or 12b has been pressed. If it is determined that the trigger button 12a or 12b has been pressed, the process proceeds to step 106. The 12-hour display and the 24-hour display are alternately selected. If the trigger button 12a or 12b has not been pressed, the process returns to step 102.

If the setting of the calendar display has been selected, the process proceeds from step 102 to step 107, in which it is determined whether or not the trigger button 12a or 12b has been pressed.
The process proceeds to step 08, and it is alternately selected whether the process starts on Sunday or Monday. If the trigger button 12a or 12b has not been pressed, the process returns to step 102.

If the automatic start setting of the CD-I has been selected, the process proceeds from step 102 to step 109, in which it is determined whether or not the trigger button 12a or 12b has been pressed.
Proceeding to step 110, the automatic start or not is alternately selected. If the trigger button 12a or 12b has not been pressed, the process returns to step 102.

Further, when the "end" button icon 66 on the display 14 is selected by the XY device 11, the process proceeds from step 102 to step 111, where it is determined whether or not the trigger button 12a or 12b has been pressed. If it is determined that the button has been pressed, step 1
The process proceeds to step S12, in which the set contents are written into a memory 22M built in the system controller 22 and made nonvolatile by a backup battery. Thereafter, the process proceeds to step 113 to exit from the setting mode flowchart and shift to the main flowchart.

[6] Description of Operation of Embodiment FIG. 10 and FIG. 11 are flowcharts of an example of the operation of this example. 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 enters the flowchart of this example from step 201. Then, the process proceeds to step 202, where it is determined whether or not the system file (CSD file) in the nonvolatile RAM 39 (which is made nonvolatile by the backup battery) is normal. This determination is made by opening the CSD file in the nonvolatile RAM 39. If the CSD file can be opened, it is determined that the CSD file is normal, and the process proceeds to step 204. If the CSD file cannot be opened, the 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 has not been copied normally is that a large number or large-capacity files exist in the nonvolatile RAM, and the capacity for copying the CSD file cannot be secured. Therefore, in step 203, a screen for erasing the file in the nonvolatile RAM 39 is displayed to prompt the user to erase the file. The user erases the file,
When the capacity for copying the CSD file has been secured, it is reset internally. After the reset, the status is the same as immediately after the power is turned on.
Go to 02.

In step 204, it is determined whether or not there is a button input for shifting to the setting mode described above. That is, it is determined whether or not the trigger buttons 12a and 12b have been pressed simultaneously. If it is determined that the trigger buttons 12a and 12b have been pressed simultaneously, the process proceeds to step 205 of the initial setting mode; otherwise, the process proceeds to step 206.

In step 205, the above-described flowchart of the initial setting mode is executed, and the above-described setting items such as an initial screen, a clock display, a calendar, and a world clock are set.
2 is stored in the internal nonvolatile RAM 22M.

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

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

In step 208, the internal RAM 22
The default value including the date and time setting value is written in M,
A message asking whether 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 is executed.
In step 09, the initial setting mode is set as in step 205, and each setting is performed as described above, and the set data is written to the built-in nonvolatile RAM 22M.
If the user does not make a setting, the process proceeds to step 210, and a 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 cover 7 is open, it is determined that the disc is not loaded, and the process proceeds to step 217, and the display mode of the screen of the built-in function display system (referred to as a clock system screen mode) is set. Is displayed in the area 57.

If it is determined in step 211 that the inner cover 7 is closed, the flow advances to step 212 to determine whether or not the disk is mounted on the disk mounting portion. When it is determined that the disk is not loaded, the process proceeds to step 217, and the timepiece-based screen mode is set. When it is determined that the disk is loaded, the process proceeds to step 213. In step 213, the innermost TOC of the disk is accessed, and the type of the disk is determined from the data of the TOC.

In this case, the disc is CD-I or C
What is treated as DI, CD-DA, or CD-DA
CD-I / CD-DA or CD-
I / CD-DA is classified into four types. 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 to be treated as such, step 2
The flow proceeds to step 214, and if it is determined that the disk is another disk, the flow proceeds to step 214.

At step 214, a message is displayed on the display 14 informing the user that the disc cannot be handled by the CD-I player of this embodiment. Thereafter, the process proceeds to step 215.

In step 215, while the message displayed in step 214 is being displayed, the process waits until the inner lid 7 is opened. When the inner lid 7 is opened, the process proceeds to step 217 of the clock system screen mode, and The display changes to the initially set built-in function display screen.

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

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

On the CD-I operation screen in the play screen mode, loading and starting of a CD-I disc can be performed as described above. CD-DA
On the operation screen, the CD-DA key input unit 41 of the main unit 2 operates the CD-DA in the same manner as a normal CD player.
A DA disc can be reproduced. In addition, CD
-In the I / CD-DA operation screen, the icons 55 and 56 are displayed for the CD-I operation screen and the CD-DA operation screen.
Can be switched by selecting.

In this play system screen mode, by selecting any 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 mode in which the built-in function display screen is displayed, the CD-DA icon 55 or the CD-I
Since the icon 56 or both are displayed on the screen of the display 14, by selecting the icons 55 and 56, it is possible to switch to the selected operation screen of the play system screen.

Then, when the inner cover 7 is opened while the play screen of step 216 is displayed, this is determined in step 218 and the process proceeds to step 217. At this time, the built-in function screen displayed on the display 14 is the last built-in function screen displayed while the power is on. After the power is turned on, a direct play screen is displayed. If there is no built-in display screen displayed last, the initial screen set in the initial setting mode is displayed.

It is needless to say that the present invention is not limited to the CD-I player, but can be applied to other disc players such as optical discs and magneto-optical discs.

[0089]

As described above, according to the present invention, after the power is turned on, the disc reproducing unit is in the non-reproducing state.
Is stored in memory according to user settings
A display signal corresponding to the initial setting mode is output from the control unit.
Display, the user can use the display based on this display signal.
To know that the disc playback unit is not in playback.
Power supply to the disc player itself
You can confirm that it has been entered. After the power is turned on, the display screen displayed when the disc reproducing unit is in the non-reproducing state can be selected from a plurality of built-in functions. Therefore, the built-in function desired by the user can always be displayed first, which is very convenient in practice.

[Brief description of the drawings]

FIG. 1 is a flowchart of one embodiment of an operation of a main part of a disc player according to the present invention.

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

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

FIG. 7 is a diagram showing an example of a built-in function screen.

FIG. 8 is a diagram illustrating an example of a display screen in an initial setting mode.

FIG. 9 is a diagram showing an example of a disk operation screen.

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

FIG. 11 is a diagram showing the remaining part 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 playback circuit 31 CD-ROM playback 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 screen selection icon

Claims (9)

(57) [Claims] 1. A disc reproducing unit for reproducing a disc, and a built-in device for executing a plurality of built-in functions other than a reproducing function.
A function execution unit, an operation unit operated by a user, a control unit that controls the operation of the disc playback unit based on an input from the operation unit, and a setting that is controlled by the control unit and that is set using the operation unit. A memory for storing data relating to the initialized setting mode, wherein the control unit stores data relating to the initial setting mode from the memory when the disc reproducing unit is in a non-reproducing state after the power is turned on. It reads a corresponding
Based on the read data on the initial setting mode
One of the built-in functions selected from the plurality of built-in functions
A disc player that outputs a display signal for displaying a function screen . 2. The disc player according to claim 1, further comprising: a display unit for switching a display based on data read from said memory by said control unit. 3. The disc player according to claim 2, further comprising a clock circuit, wherein the display unit is configured to switch the power on when the disc reproducing unit is not in a state of reproducing the disc. A disk player, wherein the display is switched by the control unit to a display based on an output from the clock circuit unit based on data on the initialization mode read from a memory. 4. The disk player according to claim 1, wherein the controller reads out data relating to the initial setting mode when the power is turned on and a disk is not loaded in the disk reproducing unit. A disc player, characterized by: 5. The disc player according to claim 1, further comprising: a lid for opening and closing the disc reproducing unit, wherein the control unit is configured to store data relating to the initialization mode when the lid is opened. A disc player for reading out data. 6. An operation unit operated by a user, a control unit for controlling an operation of a signal processing unit based on an input from the operation unit, and a control unit controlled by the control unit and set using the operation unit. A memory in which data relating to the initial setting mode is stored.When the signal processing unit is in a non-operation state after the power is turned on, the control unit transmits the data relating to the initial setting mode from the memory. Read and read
Multiple on the basis of the data relating to the initial setting mode issued
Screen of one built-in function selected from the number of built-in functions
A signal processing device configured to output a display signal for displaying an image. 7. The signal processing device according to claim 6, further comprising: a display unit that switches display based on data read from the memory by the control unit. . 8. The signal processing device according to claim 7, further comprising a clock circuit, wherein the display unit is connected to the memory when the power is turned on and the signal processing unit is in an inactive state. A signal processing device, wherein the display is switched by the control unit to a display based on an output from the clock circuit unit based on the read data regarding the initialization mode. 9. When the status for setting the initial setting mode is selected by the operation unit, the initial setting mode screen is displayed, and data relating to set initial setting mode in the displayed the initial setting mode screen After the power is turned on, when the signal processing unit is in a non-operation state, the stored data relating to the initial setting mode is read, and the built-in function screen based on the read data relating to the initial setting mode is displayed. A display method for a signal processing device, comprising: