JP2004326829A - Storage medium reproducing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To confirm the contents stored in a storage medium mountable on a main body, and to improve operability. <P>SOLUTION: A storage medium reproducing apparatus includes a main body 101, a lid 103 capable of opening/closing itself relative to the main body 101, an insertion/ejection opening 105 formed at the side of the main body 101 for inserting and ejecting an IC card 69 therethrough, a display 32 arranged on the rear side of the lid facing the main body for displaying information stored in the IC card 69, a switch 34 for detecting the closed state of the lid 103, and a controller 61 adapted to stop displaying on the display 32 when the closed state of the lid 103 is detected by the switch 34. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a recording medium reproducing apparatus in which another recording medium is mounted together with a recording medium such as an optical disk, and more particularly, to a recording medium reproducing apparatus including a display unit on which information stored in the storage medium is displayed.

  In addition to audio data, data such as video data (natural images, RGB graphics, color look-up table graphics, animations, etc.), computer data, and application programs (hereinafter, simply referred to as programs) are stored on a compact disc (hereinafter, referred to as CD). A system (hereinafter, referred to as a CD-I system) that records the data and allows the user to use these data interactively has been proposed. Since the CD-I system has a function of reproducing sound, characters, and images, and a function of executing a program, an AV device that mainly handles audio and video data, an electronic publishing that handles character data, an education that mainly deals with the execution of a program, It can be used for entertainment (games) and the like, and is expected as a new type of media system.

  The CD-I system includes an optical disk (hereinafter, referred to as a CD-I disk) on which audio data, video data, and the like are recorded, and a player (hereinafter, referred to as a CD-I player) that reproduces the CD-I disk. In the CD-I system, various specifications are defined in order to maintain compatibility and allow the system to be widely used for home use.

  For example, in a CD-I disc, a plurality of recording formats are prepared according to the reliability of various data. Audio data and video data for which high reliability is not required are recorded based on the so-called Form 2 in the data format of CD-I, and data requiring high reliability such as computer data and programs are recorded on CD-I. The data is recorded based on the so-called Form 1 in the data format, and error detection / correction is performed at the time of data reproduction.

  Also, in the CD-I system, audio data can be recorded and reproduced at four types of sound quality levels, and the audio data is subjected to data compression (coding) processing according to the sound quality levels and recorded on a CD-I disc. Is done. That is, so-called A-level, B-level, or C-level audio data (hereinafter, referred to as 16-bit PCM audio data) and 8-bit or 4-bit ADPCM (Adaptive Differential Pulse Code Modulation) on a conventional compact disc. ADPCM audio data).

  Also, in the CD-I system, four types of image qualities can be used for video data: natural images (for example, color photographs), RGB graphics, color look-up tables (hereinafter referred to as CLUT) graphics, and animations. The data is subjected to various data compression (coding) processes according to the image quality and recorded on a CD-I disc. That is, in the image quality of a natural image, video data encoded at 8 bits per pixel is recorded after being subjected to non-interlaced DYUV encoding processing, and in the image quality of RGB graphics, the three primary color (RGB) signals of each pixel are Each is encoded and recorded with 5 bits. In the image quality of CLUT graphics, 8 bits are allocated to each pixel, and video data is recorded so that 256 colors can be displayed simultaneously. Video data obtained by subjecting the video data to a data compression process using a so-called run length code (Run Length Coiding) is recorded.

  For example, as a microcomputer (hereinafter, referred to as a CPU) for controlling the operation of a CD-I player, a microcomputer of a 68000 series (a 16-bit CPU developed by Motorola) is used, and an operating system (hereinafter, referred to as an OS). ), The existing OS-9 (an OS developed by Microware) is used for the graphics / visual, pointer, audio processing, etc. in consideration of the compatibility of programs on the CD-I disk, the efficiency of execution, and the like. A so-called CD-RTOS (Compact Disc Real-Time Operating System) to which an / O (input / output) manager, a driver, and the like are added is used. As the input device, a pointing device having an XY device accessible in pixel units and a trigger button (execute / stop) is used. Further, it is defined that only music of the related art can reproduce a CD recorded as PCM audio data.

  Note that an optical disc on which only PCM audio data is recorded is called a CD-DA disc, and an optical disc on which ADPCM audio data other than PCM audio data, video data, programs, and the like are recorded is called a CD-I disc. An optical disc on which PCM audio data, ADPCM audio data, video data, a program, and the like are recorded is called a CD-I / CD-DA disc.

  In the case of a CD-I disc and a CD-I / CD-DA disc, mechanical dimensions such as an outer diameter dimension, a center hole dimension, and a thickness, optical parameters such as a refractive index and a reflectance, a disc rotation direction, and a recording linear density. The recording parameters such as the track shape, track pitch, etc., and the use environment are all the same as those of a normal compact disc, that is, a CD-DA disc.

  The discrimination between a CD-I disc, a CD-I / CD-DA disc, and a CD-DA disc can be made based on TOC (Table of Contens) information recorded in a so-called lead-in area. .

  Specifically, the PSEC information of POINT = A0 is [10] for a CD-I disc and a CD-I / CD-DA disc, whereas the PSEC information of POINT = A0 is [00] for a CD-DA disc. ], The discrimination between the CD-I disc, the CD-I / CD-DA disc, and the CD-DA disc can be made based on the PSEC information of POINT = A0. The control fields of POINT = A0, A1, and A2 of the CD-I disc are all set to [01X0] (X is 1 or 0), whereas the control field of POINT = A0 is set for the CD-I / CD-DA disc. Since the control field is set to [01X0] and the control fields of POINT = A1 and A2 are set to [00X0], the CD-I disc and the CD-I / CD-DA are controlled based on the control field information of POINT = A1 and A2. The disc can be determined.

  In the CD-I system in which various specifications are defined as described above, when a user executes a program, for example, plays a desired music or image, or executes a desired application program, an operation described below is performed. Is performed.

  When the power of the CD-I player is turned on and the optical disk is inserted, the above-described TOC information is reproduced, the type of the mounted optical disk is determined, and an operation according to the type is performed. For example, when a CD-I disc is loaded, the TOC information recorded on the CD-I disc is first reproduced, and the loaded optical disc is determined to be a CD-I disc, and the TOC information recorded on the CD-I disc is read. Music numbers, application program titles, operation details, and the like are displayed on, for example, a built-in display unit or a connected television receiver. Next, when the user performs an operation of playing music, for example, using the XY device and the trigger button, the reproduction of the CD-I disk starts, and the audio data is sequentially reproduced from the track where the music is recorded. You. The reproduced audio data is subjected to a so-called ADPCM (Adaptive Differential Pulse Code Modulation) decoding process and the like, and then converted into an audio signal by a digital / analog converter. Then, the audio signal is output to, for example, a headphone to reproduce music.

  When the user performs an operation to execute the application program using the XY device and the trigger button, the reproduction of the CD-I disk starts, and the application program is reproduced from the track where the application program is recorded. . The reproduced application program is temporarily stored in, for example, a built-in RAM. Then, the execution of the application program stored in the RAM is started. At this time, data necessary for executing the application program, for example, audio data and video data are sequentially read from the CD-I disk, and then the audio signal and the video signal are reproduced from the audio data and the video data. The execution contents of the application program are displayed on the television receiver. In addition, a sound generated by executing the application program is reproduced by the headphones. Specifically, when the game program is executed, for example, an animation is displayed on the display unit or the screen of the television receiver, and the sound effect of the game is reproduced on the headphones.

  By the way, in the above-described reproducing apparatus for reproducing a CD-I disk, data during execution obtained when a program recorded on the CD-I disk is executed, and data obtained when the program is executed are obtained. There has been proposed a device in which a storage medium such as an IC card for storing a result can be mounted.

  In this type of reproduction apparatus, by appropriately displaying information stored in a storage medium to be mounted, a program to be reproduced is executed in various modes, and reproduction is performed with the aid of the previously executed program. It is desired that such reproduction can be realized.

  Therefore, the present invention further provides a display unit for displaying the contents of a storage medium to be mounted, thereby making it possible to check the contents stored in the storage medium and realizing an improvement in operability. It is intended to provide a playback device.

  In order to achieve the above object, a recording medium reproducing apparatus according to the present invention includes a main body, a lid provided to be able to open and close with respect to the main body, and a side surface of the main body for inserting and removing a storage medium. An insertion / removal opening, a display unit provided on the back surface of the lid unit facing the main body and displaying information stored in the storage medium, a switch for detecting a closed state of the lid unit, and a switch for closing the lid unit by the switch. Control means for stopping the display on the display unit when the detection is performed.

  In the recording medium reproducing apparatus according to the present invention, the display unit is provided on the lid which can be opened and closed on the main body, and when the lid is opened, the display on the display unit can be performed. The display on the display unit can be executed only in the middle. Therefore, a necessary display can be reliably displayed on the display unit during the reproducing operation.

  Hereinafter, embodiments of a recording medium reproducing apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 shows an example in which the present invention is applied to a portable CD-I player 1. As shown in FIG. 1, this CD-I player 1 has a CD-I disc or a CD-DA disc. A disk drive unit 10 for reproducing data such as audio data, video data, and application programs (hereinafter, simply referred to as programs) from the optical disc 2; a video signal processing unit 20 for generating a video signal from the video data; For example, a liquid crystal display unit 30 that displays, for example, the title, operation content, and program execution content of information currently being reproduced, and a video signal interface unit 40 that converts a video signal into a video signal conforming to, for example, the so-called NTSC system. An audio signal processing unit 50 for reproducing an audio signal from audio data; While, the disk drive unit 10, a video signal processing unit 20, a control unit 60 which controls the audio signal processing unit 50 or the like, and an operation unit 70. the user operates. Further, the disk drive unit 10, the video signal processing unit 20, the audio signal processing unit 50, and the control unit 60 are connected to each other by a common bus 5.

  As shown in FIG. 1 described above, the disk drive unit 10 irradiates a laser beam onto the optical disk 2 with a spindle motor 11 that rotates the optical disk 2 at a constant linear velocity (CLV), and detects the intensity of the reflected light. A pickup 12 for reproducing the reproduced RF signal, a compact disk drive (hereinafter referred to as CDD) 13 for controlling the spindle motor 11 and the pickup 12 and for demodulating data such as audio data from the reproduced RF signal, and a CDD 13 It comprises a compact disk error correction circuit (hereinafter referred to as CDC) 14 for detecting / correcting errors in demodulated data, and a sub-computer (hereinafter referred to as SCPU) 15 for controlling the CDD 13, CDC 14, and the like.

  The spindle motor 11 drives the optical disc 2 to rotate at a constant linear velocity. The CDD 13 includes a so-called focus servo circuit, a tracking servo circuit, a thread servo circuit, and the like, and performs a servo control on a so-called two-axis device of the pickup 12 and includes a linear motor that moves the pickup 12 in a radial direction. , So that the pickup 12 can access the target track. The CDD 13 includes, for example, an equalizer, a waveform shaper, a clock reproducing circuit, a so-called EFM (Eight to Fourteen Modulation) demodulator, and reproduces data such as audio data from a reproduced RF signal. On the other hand, the CDC 14 performs error correction on computer data and the like that require error correction, and under the control of the control unit 60, ADPCM audio data, video data, and ADPCM data that have been subjected to data compression by so-called ADPCM (Adaptive Differential Pulse Code Modulation). In addition to outputting computer data and programs to the bus 5, 16-bit PCM audio data not subjected to data compression is directly output to the audio signal processing unit 50. Further, a light emitting diode group 77 for displaying a function of a pointing device 74 provided as the operation unit 70 is connected to the SCPU 15, and the SCPU 15 controls display switching of the light emitting diode group 77. .

  As shown in FIG. 1 described above, the video signal processing unit 20 has two systems of video data processing circuits for performing superposition of screens, switching of screens, and the like. (Direct Memory Access) RAMs 21a and 21b for temporarily storing video data transferred thereto, and video data stored in the RAMs 21a and 21b are subjected to DYUV decoding processing, run-length decoding processing, and the like to reproduce the video data. A video controller (hereinafter, referred to as VSC) 22a, 22b, a video synthesizer (hereinafter, referred to as VSR) 23 which performs a process of superimposing or switching each video data from the VSC 22a, 22b, and converts the video data into an analog signal; Consists of

  As shown in FIG. 1 described above, the liquid crystal display unit 30 includes an LCD interface circuit (hereinafter referred to as LCDINF) 31 for driving a liquid crystal display panel (hereinafter referred to as LCD) 32 based on a video signal converted into an analog signal from the VSR 23. And an LCD 32. Further, the LCDINF 31 is provided with a volume 33 for adjusting the contrast of the LCD 32 and a switch 34 for stopping the display of the LCD 32 for saving power.

  As shown in FIG. 1 described above, the video signal interface unit 40 includes an interface circuit (hereinafter referred to as INF) 41 for converting a video signal from the VSR 23 into a video signal conforming to, for example, the NTSC system or the so-called PAL system. An INF 42 that performs a reverse conversion to the INF 41 and a crystal oscillator 43 that supplies a clock having a frequency corresponding to each system to the VSCs 22a, 22b, and VSR 23. Then, the video signal converted into a predetermined format by the INF 41 is output to, for example, a television receiver (not shown) via the video output terminal 45. Further, a video signal from, for example, a video tape recorder (not shown) is supplied to the INF 42 via the video input terminal 46. The oscillation frequency of the crystal oscillator 43 is, for example, 30.202977 MHz in the case of the NTSC system, and is, for example, 30.00 MHz in the case of the PAL system.

  As shown in FIG. 1 described above, the audio signal processing unit 50 decodes the ADPCM audio data transferred from the CDC 14 or the like via the bus 5, and the decoded ADPCM decoder 51 from the ADPCM decoder 51. A digital / analog (hereinafter referred to as D / A) converter 52 for converting PCM audio data or PCM audio data directly transmitted from the CDC 14 into an analog signal, a low-pass filter (hereinafter referred to as LPF) 53, and conversion into the analog signal And an amplifier 54 for amplifying the obtained audio signal. The ADPCM decoder 51 is provided with, for example, a 16.9 MHz crystal oscillator 55 for ADPCM decoding. The amplifier 54 is provided with a volume 56 for adjusting the volume. The audio signal adjusted by the volume 56 is output to, for example, a headphone (not shown) via an audio output terminal 57.

  As shown in FIG. 1 described above, the control unit 60 includes a 68000-series microcomputer (hereinafter referred to as MCPU) 61 and a master controller (hereinafter referred to as MC) which decodes an address from the MCPU 61 and controls DMA and the like. 62, a ROM 63 in which a so-called CD-RTOS (Compact Disc Real-Time Operating System) is stored, a non-volatile RAM 64 in which data and the like during execution of the program are temporarily stored, a clock circuit 65 for managing time, For example, a so-called SCSI (Small Computor System Interface) 66 for transmitting and receiving data and commands to and from a host computer via a data input / output terminal 68, and a detachable nonvolatile memory for storing data (hereinafter referred to as a so-called IC card) ) 69. Further, the MCPU 61 is provided with a crystal oscillator 67 for operating the MCPU 61.

  The operation unit 70 includes a pointing device 74 having an XY device 71 and trigger buttons 72 and 73 that can be accessed in pixel units operated by a user, and, for example, when a power switch is forgotten to be turned off and an upper lid described below is closed, And a door switch 75 for saving power.

Here, the appearance of the CD-I player 1 having the above circuit configuration will be briefly described. The same components as the circuit components shown in FIG.

The overall size of the CD-I player 1 is, for example, 140 mm in width, 170 mm in length, and 60 mm in height so that it can be easily carried as described above. As shown in FIGS. 2 and 3, the CD-I player 1 has a main body 101, an inner lid 102 having one side edge openably and closably attached to the main body 101, and one side edge having a main body. An outer lid 103 is attached to one side edge of the part 101 so as to be openable and closable.

  The above-described disk drive unit 10, video signal processing unit 20, video signal interface unit 40, audio signal processing unit 50, control unit 60, operation unit 70 operated by a user, and the like are housed in the housing of the main body unit 101. ing. As shown in FIGS. 2 and 3, the audio output terminal 57, the volume adjustment dial 111 for operating the volume 56, and the power switch 82 are provided on the front operation panel 101A of the main body 101. A video output terminal 45, a video input terminal 46, and a data input / output terminal 68 are provided on a rear panel 101B of the main body 101. An open button 112 for opening the inner lid 102 is provided on the upper front edge of the main body 101.

  Further, on the side panel 101C of the main body 101, there are provided an IC card insertion / removal slot 105 for mounting the IC card 69, and a detachment operation button 106 for detaching the IC card 69. In addition, a lid for dustproofing is hinged inside the IC card insertion / removal opening 105. When the IC card 69 is inserted from the IC card insertion / removal opening 105, the lid is pushed open so that the IC card 69 can be mounted. It has become. On the other hand, when the user presses the detachment operation button 106, the IC card 69 is detached and the lid is closed.

  As shown in FIG. 3 described above, the inner cover 102 is opened when the open button 112 is pressed, so that the optical disk 2 can be loaded / unloaded. In addition, a window 104 is provided in the inner lid 102, and a transparent member is provided in the window 104. Then, through the window 104, the presence or absence of the optical disk 2, the rotation state, and the like can be confirmed. In addition, an XY device 71 of a pointing device 74 and trigger buttons 72 and 73 are provided at a front edge of the inner lid 102, and when the portions deviated from the center of the XY device 71, respectively, are pressed, The position in the X direction and the Y direction can be designated.

  The outer lid 103 can be opened by 90 degrees or more by hand, and can be fixed at a predetermined opening / closing angle Θ. On the back surface 103A of the outer lid 103, an LCD 32, a contrast dial 113 for operating the volume 33, and a switch 34 are provided. When the outer lid 103 is opened, the LCD 32 is exposed to the outside so that the screen of the LCD 32 can be viewed.

Next, the operation of the CD-I player 1 configured as described above will be described with reference to the flowchart shown in FIG.

When the power switch 82 of the CD-I player 1 is turned on, first, in a first step S1, it is determined whether or not the optical disk 2 is mounted. When the result of the determination in the first step S1 is "NO", that is, when the optical disk is not mounted, the process proceeds to the second step S2 to perform display control indicating that the optical disk is not mounted, and the operation of returning to the first step S1 is repeated. It waits for the optical disk 2 to be loaded.

  In the display control in the second step S2, as shown in FIG. 5, a display indicating that the optical disk is not mounted is displayed on the display area 32a of the LCD 32, and, for example, a calendar and time are displayed on the display area 32b.

  When the result of the determination in the first step S1 is "YES", that is, when the optical disk 2 is loaded, the process proceeds to the third step S3, where a so-called TOC (Table of Contens) area (also referred to as a lead-in area) of the optical disk 2 To access. That is, when the optical disk 2 is mounted on the CD-I player 1, the reproduction of the optical disk 2 is started. Then, the TOC information recorded in the TOC area of the optical disk 2 is reproduced by the pickups 12 to 14, and the TOC information is transferred to the MCPU 61.

  In the next fourth step S4, a process of determining whether or not the mounted optical disk 2 is a CD-DA disk is performed. In the determination process of the fourth step S4, when the PSEC information of POINT = A0 in the TOC area is [00], it is determined that the mounted optical disk 2 is a CD-DA disk. If the result of the fourth step S4 is "YES", that is, if the mounted optical disk 2 is a CD-DA disk, the process proceeds to the fifth step S5 to perform display control when the CD-DA disk is mounted. . Specifically, as shown in FIG. 6, the MCPU 61 performs a display indicating that a CD-DA disk is mounted on the display area 32b of the LCD 32, and indicates that the mounted optical disk 2 is a CD-DA disk.

  In the fifth step S5, the SCPU 15 controls the pointing device 74 to function as a mode designation switch. Specifically, the pointing device 74 is defined by the SCPU 15 such that the XY device 71 is defined as an operation key for designating the reproduction direction, and the trigger buttons 72 and 73 are defined as a play key and a stop key, as shown in FIG. Thus, the light emitting diode group 77 is controlled so as to display the function display patterns 71b, 72b, and 73b indicating the functions. Accordingly, the user can easily and reliably operate the XY device 71 and the trigger buttons 72 and 73 based on the display content of the light emitting diode group 77 provided on the pointing device 74.

  Then, in the next sixth step S6, the operation of the XY device 71 and the trigger buttons 72 and 73 is received, and for example, a reproduction operation of the CD-DA disc is performed according to the operation. As a result, the PCM audio data reproduced from the optical disk 2 by the disk drive unit 10 is converted into an audio signal by the D / A converter 52 and the LPF 53, and output to the headphone via the amplifier 54 and the audio output terminal 57. You.

  If the result of the determination in the fourth step S4 is "NO", that is, if the loaded optical disk 2 is not a CD-DA disk, the operation proceeds to the seventh step S7 to determine whether the optical disk 2 is a CD-I disk. A determination process is performed to determine whether or not there is no error. In the determination processing of the seventh step S7, when the information of the control field of POINT = A1, A2 in the TOC area is [00X0], it is determined that the mounted optical disk 2 is a CD-I / CD-DA disk. It is determined, and in other cases, it is determined that the loaded optical disk 2 is a CD-I disk.

  If the result of the seventh step S7 is "YES", that is, if the loaded optical disc 2 is a CD-I disc, the process proceeds to the eighth step S8 to perform display control when the CD-I disc is loaded. Specifically, as shown in FIG. 8, the MCPU 61 performs a display indicating that a CD-I disk is mounted on the display area 32c of the LCD 32, and indicates that the mounted optical disk 2 is a CD-I disk.

  In the eighth step S8, the SCPU 15 controls the display of the function of the pointing device 74 displayed by the light emitting diode group 77. More specifically, the pointing device 74 is defined by the SCPU 15 such that the XY device 71 is defined as an operation key in the XY directions, and the trigger buttons 72 and 73 are defined as an execution key and a stop key. As shown, the light emitting diode group 77 is controlled so as to display the function display patterns 71a, 72a, 73a.

  Then, in the next ninth step S9, the operation of the XY device 71 and the trigger buttons 72 and 73 is received, and according to the operation, for example, the reproducing operation of the CD-I disc is performed, and the program is executed. Specifically, the program reproduced by the disk drive unit 10 is transferred to, for example, the RAM 64, and the MCPU 61 executes the program based on the stored program. In this case, for example, a natural image or an animation is generated by the video signal processing unit 20 and displayed on the screen of the LCD 32 by executing the program, and, for example, music or narration is reproduced by the audio signal processing unit 50 and output to the headphone. Is done.

  Further, in the ninth step S9, the MCPU 61 controls to write the result (data) of the program execution to the IC card 69. For example, when an educational program is executed, the user's answer data to the problem, data of the correct answer rate, or data of how many problems have been completed when the program is interrupted are written in the IC card 69. . Further, for example, when a game program is executed, data such as the name of the person who played the game, the score data of those people, the highest score data so far, and the like are written in the IC card 69. Then, these stored data are read out under the control of the MCPU 61 and displayed on the screen of the LCD 32 when the same program is executed next time, for example. As a result, the progress of learning can be grasped, and it is very convenient when solving the next problem. In addition, the score up to the previous time is displayed, and the fun of the game is doubled. Further, the IC card 69 is detachable as described above, and the user can remove the IC card 69 and save the stored data, for example, personally.

  If the result of the seventh step S7 is "NO", that is, if the loaded optical disk 2 is a CD-I / CD-DA disk, the process proceeds to the tenth step S10, where the CD-I / CD-DA disk is mounted. Display control. More specifically, as shown in FIG. 10, the MCPU 61 displays on the display area 32a of the LCD 32 a message indicating that a CD-I / CD-DA disc has been loaded, and the loaded optical disc 2 is displayed as a CD-I / CD-DA. The fact that the disc is a disc is displayed in the display area 32c.

  In the tenth step S10, PLAY, AMS, STOP and the like necessary for the music reproducing operation are displayed in the display area 32b. Further, the function of the pointing device 74 is displayed by the light emitting diode group 77. Specifically, as shown in FIG. 9 described above, the pointing device 74 is defined by the SCPU 15 such that the XY device 71 is defined as an XY direction operation key, and the trigger buttons 72 and 73 are defined as execution keys. The light emitting diode group 77 is controlled so as to be defined as a stop key and to display its function.

  In the next eleventh step S11, a reproduction operation by operating the XY device 71 and the trigger buttons 72 and 73 is accepted. Further, in a twelfth step S12, a determination process is performed to determine whether or not only the CD-DA area of the CD-I / CD-DA disc is reproduced by the reproduction operation accepted in the eleventh step S11.

  If the result of the determination in the twelfth step S12 is "YES", that is, if the reproduction operation is specified only for the CD-DA area, the operation proceeds to the thirteenth step S13, where the XY device 71, the trigger buttons 72, 73 According to the operation described above, the reproducing operation of only the CD-DA area of the CD-I disc is performed.

  If the result of the determination in the twelfth step S12 is "NO", that is, if the execution of the program for the CD-I / CD-DA disc is designated, the operation proceeds to the fourteenth step S14, where the XY device 71, Upon receiving the operation of the trigger buttons 72 and 73, the CD-I / CD-DA disc is reproduced and the program is executed. Specifically, for example, a natural image, animation, or the like is generated by the video signal processing unit 20 and displayed on the screen of the LCD 32 by executing the program, and, for example, music or narration is reproduced by the audio signal processing unit 50, and the headphones Is output to At this time, the result (data) of the program execution is stored in the IC card 69.

As described above, by providing the IC card 69, data can be stored as needed, and the convenience of the CD-I player can be improved and the range of application can be expanded. Furthermore, the IC card 69 is detachable, and the user can remove the IC card 69 and save the stored data, for example, personally.

  The present invention is not limited to the embodiment, and a program or the like temporarily stored in the RAM 64 may be stored in the IC card 69. In this case, the RAM 64 is not required, and the cost can be reduced. In addition, when the same program is repeatedly executed, it is not necessary to reproduce the program every time the program is executed from the optical disc 2, and the program is repeatedly executed at high speed. can do. Further, by storing the CD-RTOS stored in the ROM 63 in the IC card 69, the ROM 63 can be deleted.

FIG. 2 is a block circuit diagram illustrating a circuit configuration of a CD-I player to which the present invention has been applied. It is an external appearance perspective view in the state where the outer lid of the CD-I player was opened. It is an external appearance perspective view in the state where the outer lid and the inner lid of the CD-I player were opened. 6 is a flowchart showing the operation of the CD-I player. FIG. 4 is a diagram illustrating display contents of a liquid crystal display unit when an optical disc is not mounted on a CD-I player. FIG. 3 is a diagram showing display contents of the liquid crystal display unit when a CD-DA disc is mounted on a CD-I player. FIG. 3 is a diagram showing a function display state of a pointing device when a CD-DA disc is mounted on a CD-I player. FIG. 4 is a diagram showing display contents of the liquid crystal display unit when a CD-I disc is mounted on a CD-I player. FIG. 3 is a diagram showing a function display state of the pointing device when a CD-I disc or a CD-I / CD-DA disc is mounted on a CD-I player. FIG. 3 is a diagram showing display contents of the liquid crystal display unit when a CD-I / CD-DA disc is mounted on a CD-I player.

Explanation of reference numerals

  1 CD-I player, 2 optical disk, 32 LCD, 32a, 32b display area, 34 switch, 60 control unit, 61 MCPU, 69 IC card, 101 main body, 103 outer lid, 105 IC card slot

Claims (1)

Body and
A lid provided to be openable and closable with respect to the main body,
An insertion / removal opening provided on the side surface of the main body, for inserting and removing a storage medium,
A display unit that is provided on the back surface of the lid facing the main body and displays information stored in the storage medium;
A switch for detecting a closed state of the lid,
A control unit for stopping display on the display unit when the closed state of the lid is detected by the switch.

Images