Patent Publication Number: US-2003231858-A1

Title: Reproduction display apparatus and reproduction display method

Description:
[0001] The present disclosure relates to the subject matter contained in Japanese Patent Application No. 2002-156624 filed May 30, 2002, which is incorporated herein by reference in its entirety.  
       BACKGROUND OF THE INVENTION  
       [0002] 1. Field of the Invention  
       [0003] The present invention relates to a reproduction display apparatus configured by a display device that displays video information, and a reproduction device that reproduces a recording medium on which the video information is recorded.  
       [0004] 2. Description of the Related Art  
       [0005] For example, a conventional reproduction display apparatus is mounted in the vicinity of a driver&#39;s seat of a vehicle that is a mobile unit. The reproduction display apparatus comprises a multimedia player that can reproduce a recording medium on which video information is recorded (for example, a DVD (Digital Versatile Disc)-Video or a Video-CD), and also a recording medium on which only information other than video information is recorded (for example, a CD-DA (Compact Disc-Digital Audio)); and a monitor that displays video information which is reproduced by the multimedia player.  
       [0006] As such a monitor, for example, an in-vehicle monitor is known which is housed in a casing disposed in a dashboard of a vehicle, and which is held so as to be movable and retractable with respect to the casing. When the monitor is to be used, the monitor is moved to the outside of the casing, and, when the monitor is not to be used, the monitor is housed into the casing.  
       [0007] In the above-described conventional reproduction display apparatus, when a recording medium is loaded on the multimedia player, the monitor housed in the casing is automatically moved to the outside of the casing. Namely, an operation of inputting a command to move the monitor to the outside of the casing is omitted so as to improve convenience. In the conventional reproduction display apparatus, the movement of the monitor to the outside of the casing is performed simply by using the loading of a recording medium as a trigger. Therefore, the monitor is moved even when a recording medium on which video information to be displayed on the monitor is not recorded is loaded. Namely, even in the case where the user inserts a recording medium such as a CD, i.e., a recording medium which does not require the use of the monitor into the multimedia player in order to reproduce it, the monitor housed in the casing is automatically moved to the outside of the casing. As a result, there arises a problem in that a cumbersome operation of housing the monitor, which has been once moved to the outside of the casing, into the casing must be performed.  
       SUMMARY OF THE INVENTION  
       [0008] The invention has been devised in order to solve at least the above-described problem. It is an object of the invention to provide a reproduction display apparatus and a reproduction display method in which activation of a display device is controlled in accordance with kinds of a recording medium loaded on a reproduction device.  
       [0009] In order to attain the object, a first aspect of the invention provides a reproduction display apparatus having: a display device that displays video information; a reproduction device that reproduces a recording medium on which at least video information to be displayed on the display device is recorded; and a control section which, when it is judged that a recording medium loaded on the reproduction device is a recording medium on which such video information is recorded, activates the display device that is not in an activated state.  
       [0010] A second aspect of the invention provides a reproduction display apparatus having: a display device that is disposed to be movable inside and outside a case fixed to a vehicle; a reproduction device that reproduces a recording medium on which at least video information to be displayed on the display device is recorded; a moving section which moves the display device to inside and outside of the case; and a control section which, when it is judged that a recording medium loaded on the reproduction device is a recording medium on which such video information is recorded, controls the moving section to move the display device that is housed in the case to outside of the case.  
       [0011] Another aspect of the invention provides a reproduction display method for a reproduction display apparatus having a display device that displays video information; and a reproduction device that reproduces a recording medium on which at least video information to be displayed on the display device is recorded, the method including: judging whether or not a recording medium loaded on the reproduction device is a recording medium on which video information is recorded; activating the display device that is not in an activated state, when it is judged that the recording medium is a recording medium on which video information is recorded; and displaying the video information recorded on the recording medium, on the activated display device.  
       [0012] A further aspect of the invention provides a reproduction display method for a reproduction display apparatus having a display device that is disposed to be movable inside and outside a case fixed to a vehicle; and a reproduction device that reproduces a recording medium on which at least video information to be displayed on the display device is recorded, the method including: judging whether or not a recording medium loaded on the reproduction device is a recording medium on which video information is recorded; moving the display device that is housed in the case, to outside of the case, when it is judged that the recording medium is a recording medium on which video information is recorded; and displaying the video information recorded on the recording medium, on the moved display device. 
     
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
     [0013]FIG. 1 is an external view showing a reproduction display apparatus of an embodiment of the invention;  
     [0014]FIG. 2 is a block diagram showing a configuration of a control system of the reproduction display apparatus;  
     [0015]FIG. 3 is a flowchart showing an operation of the control system of the reproduction display apparatus;  
     [0016]FIG. 4 is another flowchart ( 1 / 2 ) showing an operation of the control system of the reproduction display apparatus; and  
     [0017]FIG. 5 is a further flowchart ( 2 / 2 ) showing the operation of the control system of the reproduction display apparatus. 
    
    
     DETAILED DESCRIPTION OF THE PREFFERED EMBODIMENTS  
     [0018] Hereinafter, an embodiment of a reproduction display apparatus of the invention will be described with reference to the accompanying drawings. An in-vehicle reproduction display apparatus having a reproduction device which can reproduce recording media of a DVD and a CD, particularly a reproduction device that can reproduce a DVD-Video, a DVD-Audio, and a Video-CD as recording media on which video information is recorded; and a display device that is held so as to be movable and retractable with respect to a casing will be described as one embodiment.  
     [0019]FIG. 1 is an external view showing the appearance of the in-vehicle reproduction display apparatus of the embodiment. The in-vehicle reproduction display apparatus  1  shown in FIG. 1 is configured by a monitor  2  that is a display device disposed in a dashboard  4  which is positioned between a driver&#39;s seat of a vehicle and a passenger&#39;s seat; and a multimedia player  3  that is a reproduction device. The monitor  2  has a display screen  2   a  on which video information is to be displayed, and is held so as to be movable and retractable in inward and outward directions with respect to a casing  5  which is embedded into the dashboard  4 .  
     [0020] The monitor  2  is reciprocally moved by a moving mechanism configured by a driving motor and the like which are disposed in the casing  5 . The monitor  2  is moved inside and outside the casing  5  by the moving mechanism while the display screen  2   a  is downward directed. When the monitor  2  is to be moved from the inside of the casing  5  to the outside thereof, the monitor is moved while the display screen  2   a  is downward directed, and then turned so that the display screen  2   a  is directed in the movement direction. FIG. 1 shows a state where the monitor  2  is moved outside the casing and the display screen  2   a  is then turned so as to be directed in the movement direction. In the following description, this state is referred to as “raised state”.  
     [0021] The multimedia player  3  has an operation panel  3   a . In the operation panel  3   a , disposed are an insertion slot  3   b  through which a recording medium such as a DVD or a CD is to be inserted, various operation buttons  3   c  such as an eject button for ejecting a recording medium loaded on the multimedia player  3 , to the outside of the multimedia player  3  through the insertion slot  3   b , and a display unit  3   d  which displays information that indicating the progress of reproduction of the recording medium and the like.  
     [0022] The multimedia player  3  is provided with a transport mechanism which transports the recording medium inserted through the insertion slot  3   b  to a predetermined reproduction position, and which comprises a transport motor and the like; and a reproduction mechanism on which the recording medium transported to the predetermined reproduction position by the transport mechanism is to be loaded, and which reads and reproduces information recorded on the recording medium.  
     [0023] The reproduction mechanism can reproduce many kinds of media including a recording medium such as a DVD on which video information is recorded, and a CD on which audio information is recorded. The video information which is read by the reproduction mechanism is displayed on the display screen  2   a  of the monitor  2 .  
     [0024] Next, the configuration of the in-vehicle reproduction display apparatus  1  of the embodiment will be described in detail with reference to the block diagram of FIG. 2. First, the configuration of the monitor  2  of the in-vehicle reproduction display apparatus  1  will be described. The monitor  2  is roughly divided into the display screen  2   a , and a control unit  2   b  which conducts the control of the whole monitor  2 .  
     [0025] The display screen  2   a  is configured by a liquid crystal display device and the like, and displays a video signal which has been converted by the multimedia player  3  as video data to be displayed on the display screen  2   a . The control unit  2   b  performs a role of conducting the control of the whole monitor  2 , and also performs a role of conducting the operation control of the moving mechanism  6 . For example, the control unit  2   b  conducts processes such as switching over an image to be displayed on the display screen  2   a , and operating the moving mechanism  6  on the basis of a signal which is supplied from the multimedia player  3  through a communication line  8 .  
     [0026] The monitor  2  has a power switch  7 . A power source voltage is supplied from a battery of the vehicle through the power switch  7 , thereby setting the monitor  2  to an activated state. The power switch  7  is turned on/off under the control of the control unit  2   b.    
     [0027] Next, the configuration of the multimedia player  3  of the in-vehicle reproduction display apparatus  1  will be described. The multimedia player  3  comprises the transport mechanism  3   e  which is configured by transport rollers and the like, and which transports a recording medium D inserted through the insertion slot  3   b ; a detection unit for detecting that the recording medium D transported by the transport mechanism  3   e  is held by a damper and a turntable which are not shown, and which brings the recording medium D to the predetermined reproduction position. The detection unit also detects that the holding is cancelled. The detection unit is configured by mechanical switches and the like. The multimedia player  3  further comprises a spindle motor  3 F which rotates at a constant linear velocity the recording medium D that is brought to the predetermined reproduction position; and a pickup  3 G which reads information recorded on the recording medium D.  
     [0028] The pickup  3 G has an LD (Laser Diode) (not shown) which emits laser beams of different wavelengths in accordance with the kind of the recording medium D brought to the predetermined reproduction position; an objective lens (not shown) which converges the laser beam emitted from the LD to irradiate an information recording plane of the recording medium; and an actuator (not shown) which drives the objective lens in tracking and focusing directions. The pick up reads information recorded on the recording medium D, by means of the laser beam emitted from the LD.  
     [0029] The multimedia player  3  further comprises a carriage mechanism having a carriage motor  3 H which moves the pickup  3 G in a radial direction of the recording medium D brought to the predetermined reproduction position; a servo control unit  3 J having an RF amplifier  3 I that amplifies a signal read by the pickup  3 G, the servo control unit  3 J conducting various servo controls such as a tracking servo control, a focus servo control, a carriage servo control, and a spindle servo control, in accordance with a tracking error signal TE, a focus error signal FE, and a reproduction signal RF that are supplied from the RF amplifier  3 I; and a signal process unit  3 K which applies signal processes such as a predetermined error correction process and a signal demodulation process (in the case of video information, an MPEG demodulation process) on the reproduction signal RF that is supplied from the RF amplifier  3 I, and which separates the reproduction signal RF into a video signal and an audio signal.  
     [0030] The multimedia player  3  further comprises a D/A conversion unit  3 L which converts the audio signal that is separated by the signal process unit  3 K, into analog data; a loudspeaker  3 N which amplifies the analog audio signal that is converted by the D/A conversion unit  3 L, and which outputs the amplified audio signal; and a video conversion unit  3 M which decodes the video signal that is separated by the signal process unit  3 K, and which converts the decoded signal into video data to be displayed on the display screen  2   a  of the monitor  2 .  
     [0031] The video data which have been converted by the video conversion unit  3 M are supplied to the display screen  2   a  through the communication line  8  via the control unit  2   b  of the monitor  2 , and then displayed as an image on the screen. A control unit  3 P plays a role of conducting the control of the whole multimedia player  3 . The control unit controls the servo control unit and the transport mechanism on the basis of an operation signal which is supplied, for example, in response to an operation of the operation buttons  3   c  disposed on the operation panel  3   a.    
     [0032] The control unit  3 P supplies a signal indicative of the kind of the recording medium D brought to the predetermined reproduction position, to the control unit  2   b  of the monitor  2  through the communication line  8 . The control unit has an internal memory that stores a signal when the signal is a signal indicative of a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded. Furthermore, the control unit comprises a timer which measures a predetermined time elapsed after the loading of the recording medium is cancelled (for example, after the eject button is operated). When the signal indicative of a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded is not again obtained during the measurement by the timer, the signal stored in the internal memory is cleared after the measurement of the predetermined time by the timer is ended. The clamper, the turntable, the pickup  3 G, the spindle motor  3 F, the carriage mechanism, the servo control unit  3 J, the RF amplifier  31 , the signal process unit  3 K, the control unit  3 P, the video conversion unit  3 M, the D/A conversion unit  3 L, and the loudspeaker  3 N constitute the reproduction mechanism.  
     [0033] The operation and control of the multimedia player  3  which is a reproduction device of the thus configured in-vehicle reproduction is play apparatus  1  will be described with reference to the flowcharts shown in FIGS. 3 and 4. First, the user inserts a recording medium into the multimedia player  3  through the insertion slot  3   b , and the recording medium is then positioned to the predetermined reproduction position by the transport mechanism  3   e  so as to be held by the damper and the turntable. When the loading of the recording medium to the predetermined reproduction position is completed, the control unit  3 P first assumes that the loaded recording medium is a DVD, and sets the above-mentioned servo controls as those required for reading information recorded on a DVD. Thereafter, a process of reading information recorded on the recording medium is started by the various servo controls performed by the servo control unit (step S 1 ).  
     [0034] Next, the control unit  3 P judges whether information recorded on the recording medium has been normally read by the servo controls set in step S 1  or not (step S 2 ). At this time, the LD emits a laser beam of a wavelength (a shorter wavelength) necessary for reading information recorded on a DVD. When the recording medium brought to the predetermined reproduction position is a recording medium (for example, a CD or the like) having an information recording density which is different from that of a DVD, or when the information recording plane of the recording medium is not opposed to the pickup  3 G, a correct reflected light beam from the recording medium cannot be obtained. Therefore, the various servo controls cannot normally function and fail to be adequately closed. In view of such circumstances, it is judged whether the various servo controls are adequately closed or not. If the various servo controls are not adequately closed (step S 2 : NO), it is judged that the recording medium is a recording medium other than a DVD, or that the recording medium is not loaded in a normal state, and the control proceeds to step S 11  shown in FIG. 4. If the various servo controls are adequately closed, or if information recorded on the recording medium is normally read by the laser beam emitted from the LD of the pickup  3 G (step S 2 : YES), the kind of the loaded recording medium is judged as a DVD, and predetermined information recorded on the recording medium is read (step S 3 ).  
     [0035] The predetermined information which is to be read in this step is information recorded in “Volume and File structure” zone in the volume pace of a DVD. In the case of a DVD-Video, for example, a file of “VIDEO_TS.IFO” which stores information of a VMG (Video Manager) and the like is recorded in the zone. In the case of a DVD-Audio, a file of “AUDIO_TS.IFO” which stores information of an AMG (Audio Manager) and the like is recorded in the zone. In the case of a DVD-ROM (Read Only Memory), both files of “VIDEO_TS.IFO” and “AUDIO_TS.IFO” are not recorded in the zone.  
     [0036] The predetermined information which has been read in step S 3  is supplied to the signal process unit  3 K through the RF amplifier  3 I to be subjected to the signal process in the signal process unit  3 K, and then supplied to the control unit  3 P.  
     [0037] Thereafter, the control unit  3 P judges the kind of the recording medium which is brought to the predetermined reproduction position in the multimedia player  3  (step S 4 ). If it is judged that the recording medium broutht to the predetermined reproduction position is a DVD-Video, or if it is affirmed that a file of “VIDEO_TS.IFO” is stored in “Volume and File structure” zone in the volume space (step S 4 : YES), it is decided that the recording medium loaded on the multimedia player  3  is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 5 ).  
     [0038] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 , and stores the signal into the internal memory. Thereafter, the video information and the like recorded on the DVD-Video are reproduced. Specifically, the reproduction signal RF which is read by the pickup  3 G is amplified by the RF amplifier  3 I, a predetermined signal process is applied to the amplified signal in the signal process unit  3 K, and the amplified signal is separated into a video signal and an audio signal.  
     [0039] The video signal is supplied to the video conversion unit  3 M to be converted into video data which are to be displayed on the display screen  2   a  of the monitor  2 , and then to the control unit  2   b  of the monitor  2  through the communication line  8  to be displayed as an image on the display screen  2   a . The audio signal is supplied to the D/A conversion unit  3 L to be converted into an analog audio signal, and then amplified to be output as sound from the loudspeaker  3 N.  
     [0040] If it is judged in step S 4  that the recording medium brought to the predetermined reproduction position is not a DVD-Video, or if it is affirmed that a file of “VIDEO_TS.IFO” is not stored in “Volume and File structure” zone in the volume space (step S 4 : NO), it is further judged whether the recording medium brought to the predetermined reproduction position is a DVD-Audio or not (step S 6 ).  
     [0041] If it is judged that the recording medium is a DVD-Audio, or if it is affirmed that a file of “AUDIO_TS.IFO” is stored in “Volume and File structure” zone in the volume space (step S 6 : YES), it is decided that the recording medium loaded on the multimedia player  3  is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 7 ).  
     [0042] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 , and stores the signal into the internal memory. Thereafter, the video information and the like recorded on the DVD-Audio is reproduced.  
     [0043] Specifically, the reproduction signal RF which is read by the pickup  3 G is amplified by the RF amplifier  3 I, a predetermined signal process is applied to the amplified signal in the signal process unit  3 K, and the amplified signal is separated into a video signal and an audio signal.  
     [0044] The video signal is supplied to the video conversion unit  3 M to be converted into video data which are to be displayed on the display screen  2   a  of the monitor  2 , and then supplied through the communication line  8  to the control unit  2   b  of the monitor  2  to be displayed as an image on the display screen  2   a.    
     [0045] The audio signal is supplied to the D/A conversion unit  3 L to be converted into an analog audio signal, and then amplified to be output as sound from the loudspeaker  3 N.  
     [0046] If it is judged in step S 6  that the recording medium brought to the predetermined reproduction position is not a DVD-Audio, or if it is affirmed that a file of “AUDIO_TS.IFO” is not stored in “Volume and File structure” zone in the volume space (step S 6 : NO), the recording medium brought to the predetermined reproduction position is neither a DVD-Video nor a DVD-Audio. Therefore, it is determined that the recording medium is not a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (for example, a DVD-ROM) (step S 8 ).  
     [0047] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 . Thereafter, the recording medium brought to the predetermined reproduction position is reproduced. In this case, since a video signal is not contained in the reproduction signal RF which is read by the pickup  3 G and amplified by the RF amplifier  3 I, the separation process in the signal process unit  3 K is not performed, and the audio signal is converted into an analog audio signal by the D/A conversion unit  3 L and then output from the loudspeaker  3 N.  
     [0048] In the case where the recording medium is a DVD-ROM, for example, information to be output from the loudspeaker is not recorded on the recording medium as well, and hence the recording medium is compulsively ejected by the transport mechanism  3   e.    
     [0049] If the various servo controls fail in step S 2  to be adequately closed (step S 2 : NO), the control proceeds to step S 11  shown in FIG. 4 in which the control unit  3 P cancels the servo controls that have been set in order to read information recorded on a DVD, and sets servo controls required for reading information recorded on a CD. Thereafter, a process of reading information recorded on the recording medium is started by the various servo controls performed by the servo control unit  3 J.  
     [0050] Next, the control unit  3 P judges whether or not information recorded on the recording medium is normally read by the servo controls set in step S 11  (step S 12 ). At this time, the LD emits a laser beam of a wavelength necessary for reading information recorded on a CD (namely, a wavelength which is longer than that necessary for reading information recorded on a DVD).  
     [0051] If the various servo controls are not adequately closed (step S 12 : NO), it is judged that the recording medium is in a state where it is not normally loaded, such as that where the recording medium is not brought to the predetermined reproduction position in the state where the information recording plane of the recording medium is opposed to the pickup  3 G. Then, processes such as those of displaying an error indication on the display unit  3   d  of the operation panel  3   a , and compulsively ejecting the recording medium brought to the predetermined reproduction position, by the transport mechanism  3   e  are performed (step S 19 ).  
     [0052] If the various servo controls are adequately closed, or if information recorded on the recording medium is normally read by the laser beam emitted from the LD of the pickup  3 G (step S 12 : YES), the kind of the loaded recording medium is judged as a CD, and predetermined information recorded on the recording medium is read (step S 13 ).  
     [0053] The predetermined information which is to be read in this step is TOC information which is recorded in the lead-in area of the CD. In the case of a CD-DA, the whole TOC information consists of information related to recording tracks of audio signals, and, in the case of another CD (for example, a CD-ROM (Read Only Memory) or a Video-CD), the TOC information contains both information related to recording tracks of audio signals and that related to ROM data, or the whole TOC information consists of information related to recording tracks of ROM data. In the case of a Video-CD, information of track No.  1  contains information of one of “info.vcd” and “KARINFO.BIH”.  
     [0054] The predetermined information which is read in step S 13  is supplied to the signal process unit  3 K through the RF amplifier  3 I to be subjected to a signal process in the signal process unit  3 K, and then supplied to the control unit  3 P. Thereafter, the control unit  3 P judges the kind of the recording medium which is brought to the predetermined reproduction position in the multimedia player  3  (step S 14 ).  
     [0055] If it is judged that the recording medium brought to the predetermined reproduction position is a CD-DA, or if it is affirmed that the whole TOC information consists of information related to recording tracks of audio signals (step S 14 : YES), it is determined that the recording medium loaded on the multimedia player  3  is a recording medium on which video information to be displayed on the display screen  2   a  of the monitor  2  is not recorded (step S 15 ).  
     [0056] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 . Thereafter, information (audio signals) and the like which are recorded on the CD-DA, and which are not video information are reproduced. Specifically, the reproduction signal RF which is read by the pickup  3 G is amplified by the RF amplifier  3 I, a predetermined signal process is applied to the amplified signal in the signal process unit  3 K, the amplified signal is supplied to the D/A conversion unit  3 L to be converted into an analog audio signal, and then amplified to be output as sound from the loudspeaker  3 N.  
     [0057] If it is judged in step S 14  that the recording medium brought to the predetermined reproduction position is not a CD-DA, or if it is affirmed that the TOC information contains information related to recording tracks other than audio signals (step S 14 : NO), it is further judged whether the recording medium brought to the predetermined reproduction position is a Video-CD or not (step S 16 ). If it is judged that the recording medium is a Video-CD, or if it is affirmed that information of track No.  1  contains information of one of “info.vcd” and “KARINFO.BIH” (step S 16 : YES), it is determined that the recording medium loaded on the multimedia player  3  is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 17 ).  
     [0058] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 , and stores the signal into the internal memory. Thereafter, the video information and the like recorded on the Video-CD are reproduced. Specifically, the reproduction signal RF which is read by the pickup  3 G is amplified by the RF amplifier  3 I, a predetermined signal process is applied to the amplified signal in the signal process unit  3 K, and the amplified signal is separated into a video signal and an audio signal.  
     [0059] The video signal is supplied to the video conversion unit  3 M to be converted into video data which are to be displayed on the display screen  2   a  of the monitor  2 , and then supplied through the communication line  8  to the control unit  2   b  of the monitor  2  to be displayed as an image on the display screen  2   a . The audio signal is supplied to the D/A conversion unit  3 L to be converted into an analog audio signal, and then amplified to be output as sound from the loudspeaker  3 N.  
     [0060] If it is judged in step S 16  that the recording medium brought to the predetermined reproduction position is not a Video-CD, or if it is affirmed that the TOC information contains information related to recording tracks other than audio signals and information of track No.  1  contains no information of “info.vcd” and “KARINFO.BIH” (step S 16 : NO), it is determined that the recording medium brought to the predetermined reproduction position is not a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (for example, a CD-ROM) (step S 18 ).  
     [0061] The control unit  3 P supplies the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2  through the communication line  8 . Thereafter, the recording medium brought to the predetermined reproduction position is reproduced. In this case, since a video signal to be displayed on the display screen  2   a  of the monitor  2  is not contained in the reproduction signal RF which is read by the pickup  3 G and amplified by the RF amplifier  3 I, a reproduction process similar to that in the case of a CD-DA, namely the separation process in the signal process unit  3 K is not performed, and the audio signal is converted into an analog audio signal by the D/A conversion unit  3 L and then output as sound from the loudspeaker  3 N.  
     [0062] In the case where the recording medium is a CD-ROM, for example, even information to be output from the loudspeaker  3 N is not recorded on the recording medium, and hence a process similar to that in the case of a CD-DA is not performed and the recording medium is compulsively ejected by the transport mechanism  3   e.    
     [0063] Next, a process of controlling reproduction display in the in-vehicle reproduction is play apparatus  1  of the embodiment will be described with reference to the flowcharts shown in FIGS. 5A and 5B. FIG. 5A is a flowchart showing a display control on the monitor  2  when a recording medium is loaded on the multimedia player  3 , and FIG. 5B is a flowchart showing a control on the monitor  2  when the recording medium is ejected from the multimedia player  3 .  
     [0064] First, the display control on the monitor  2  when a recording medium is loaded on the multimedia player  3  will be described with reference to the flowchart shown in FIG. 5A. The control unit  3 P judges whether, with starting from the state where the monitor  2  is housed in the casing  5  and a recording medium is not loaded on the multimedia player  3 , a recording medium which is inserted through the insertion slot  3   b  of the multimedia player  3  and carried to the predetermined reproduction position by the transport mechanism  3   e  is held by the clamper and the turntable or not (step S 20 ).  
     [0065] If a recording medium is not brought to the predetermined reproduction position (step S 20 : NO), the control does not further proceed and waits for loading of a recording medium. If it is judged that a recording medium is brought to the predetermined reproduction position (step S 20 : YES), predetermined information of the recording medium is read by the pickup  3 G. On the basis of the predetermined information, it is judged whether or not the recording medium brought to the predetermined reproduction position is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 21 ).  
     [0066] If it is judged that the recording medium is not a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 21 : NO), a reproduction process is performed on the recording medium brought to the predetermined reproduction position, while not supplying the signal indicative of the kind of the recording medium to the control unit  2   b  of the monitor  2 . If it is judged that the recording medium is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 21 : YES), the signal indicative of the kind of the recording medium is stored into the internal memory, and the signal is supplied to the control unit  2   b  of the monitor  2  through the communication line  8 .  
     [0067] The control unit  2   b  of the monitor  2  which receives the signal controls the moving mechanism  6  so as to move the monitor  2  housed in the casing  5  to the outside thereof, and turns on the power switch  7  (step S 22 ).  
     [0068] The video data supplied from the multimedia player  3  are displayed on the display screen  2   a , and the loudspeaker  3 N outputs the audio signal.  
     [0069] Next, the display control of the monitor  2  in the case where the recording medium is ejected from the multimedia player  3  will be described with reference to the flowchart of FIG. 5B.  
     [0070] The control unit  3 P of the multimedia player  3  judges whether, in the state where the monitor  2  is moved to the outside of the casing  5  and the video information of the recording medium loaded on the multimedia player  3  is displayed on the display screen  2   a , the eject button of the operation panel  3   a  is operated by the user or not (step S 30 ). If the eject button of the operation panel  3   a  is not operated by the user (step S 30 : NO), the reproduction display operation is continued.  
     [0071] If the eject button of the operation panel  3   a  is operated by the user (step S 30 : YES), the reproduction of the recording medium which is in the predetermined reproduction position, and on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded is stopped, and the loaded state is cancelled.  
     [0072] The control unit  3 P starts the timer to measure the predetermined time. The recording medium which has been released from the loaded state is ejected from the predetermined reproduction position by the transport mechanism  3   e.    
     [0073] Next, it is judged whether the counting by the timer is ended or not (step S 31 ) . If the counting by the timer is not ended (step S 31 : NO), it is judged whether or not a recording medium which is newly brought to the predetermined reproduction position is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 32 ).  
     [0074] If during the predetermined time it is failed to judge that the recording medium which is newly brought to the predetermined reproduction position is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded, or if it is judged that the recording medium is not a recording medium on which video information is recorded (step S 32 : NO), the counting by the timer is ended, a signal indicative of the end is supplied to the control unit  2   b  of the monitor  2  through the communication line  8 , and the signal stored in the internal memory is cleared.  
     [0075] If a new recording medium is not brought to the predetermined reproduction position during the measurement of the predetermined time and the measurement of the predetermined time is ended (step S 31 : YES), the signal indicative of the end is supplied to the control unit  2   b  of the monitor  2  through the communication line  8 , and the signal stored in the internal memory is cleared.  
     [0076] The control unit  2   b  of the monitor  2  turns off the power switch  7 , and controls the moving mechanism  6  so as to house the monitor  2  in the raised state, into the casing  5  (step S 33 ).  
     [0077] By contrast, if during the predetermined time it is judged in step S 32  that the recording medium which is newly brought to the predetermined reproduction position is a recording medium on which at least video information to be displayed on the display screen  2   a  of the monitor  2  is recorded (step S 32 : YES), the counting by the timer is ended, and the signal stored in the internal memory is again supplied to the control unit  2   b  of the monitor  2 .  
     [0078] The control unit  2   b  of the monitor  2  which receives the signal maintains the on state of the power switch  7  of the monitor  2 , and holds the monitor  2  to the raised state. Namely, during the period when the signal stored in the internal memory is not cleared, the on state of the power switch  7  of the monitor  2 , and the raised state are maintained as they are. Then, the operation of reproducing the recording medium is started, and video information is displayed on the display screen  2   a  of the monitor  2 .  
     [0079] As described above in detail, in the reproduction display apparatus of the embodiment, it is judged whether or not the recording medium loaded on the multimedia player  3  is a recording medium on which video information to be displayed on the display screen  2   a  of the monitor  2  is recorded, and, if it is judged that the recording medium is a recording medium on which such video information is recorded, the monitor that is not in an activated state is activated. When a recording medium (for example, a CD-DA) which does not require the use of the monitor is loaded, the monitor that is not in an activated state is not activated, and hence a cumbersome operation can be omitted.  
     [0080] As the reproduction display apparatus of the invention, the embodiment which is an in-vehicle reproduction display apparatus has been described. The invention is not restricted to this. For example, the invention may be applied also to, for example, a home reproduction display apparatus.  
     [0081] The reproduction display apparatus of the invention may be applied not only to a monitor which is moved inside and outside a case but also to a stationary monitor by controlling the power switch described in the embodiment.  
     [0082] In the embodiment described above, the multimedia player which is the reproduction device is a single player (in which a recording medium inserted through the insertion slot is transported as it is to the reproduction position and then reproduced). The multimedia player may be of the type in which plural recording media are housed and a selected one of the recording media is taken out to be reproduced (the magazine type, or the type in which recording media are inserted one by one through an insertion slot to be housed in a housing unit in a player).  
     [0083] In the case where the multimedia player is a changer, a selected recording medium is transported from a magazine or a housing unit in which a plurality of recording media are housed, to a predetermined reproduction position by a transport mechanism of the changer, and are production process is performed on the selected recording medium. In the case where the multimedia player is a changer, therefore, the recording medium loaded on the reproduction device means the selected recording medium, and the judgments such as that whether or not the recording medium is a recording medium on which video information is recorded are performed on the selected recording medium.