Abstract:
A data recording and reproducing apparatus having a recording and reproducing means for recording and reproducing data containing video data and/or audio data to and from a record medium that is non-linearly accessible and a plurality of input and output processing means for accessing the recording and reproducing means in respectively assigned time slot periods, outputting the data that is output from the outside to the recording and reproducing means, and inputting the data from the recording and reproducing means is disclosed, that comprises an operating means for performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium, and a displaying means for displaying the data that is input to and that is output from the plurality of input and output means, wherein the operating means and the displaying means are integrally structured.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a data recording and reproducing apparatus and a data displaying method for storing audio data and/or video data to a record medium that is non-linearly accessible, for displaying input video data, and/or for reproducing and displaying stored video data. 
     2. Description of the Related Art 
     In recent television broadcasts, digital video and audio signals are becoming common. These television broadcasts are referred to as digital broadcasts. In the digital broadcasts, many information channels can be used. Thus, there are strong needs for recording and/or reproducing a plurality of channels of video data and/or audio data (hereinafter referred to as A/V data) with one A/V data recording and reproducing apparatus so that a plurality of channels of A/V data are recorded and reproduced in parallel and that while a particular channel of A/V data is recorded, another channel of A/V data is reproduced. To satisfy such needs, an apparatus that records A/V data with a random-accessible record medium (such as a hard disk) is becoming common (hereinafter such an apparatus is referred to as A/V (Audio and/or Video) server). 
     The A/V server has a plurality of inputs channels and output channels of A/V data. In addition, the A/V server is controlled by an external controller such as a dedicated editing device or a personal computer. The operator can observe A/V data stored in the A/V server and A/V data that is input to an input portion with a monitor connected to the A/V server using the controlling unit and the personal computer. 
     With the controller connected as an external unit to the A/V server, input A/V data is recorded to a record medium and A/V data stored in a record medium is edited. In the editing operation, the operator designates a desired IN point and a desired OUT point with the controller while observing a reproduced picture that is read and reproduced from the record medium. First, the operator coarsely designates an IN point and an OUT point with the controller. Thereafter, the operator causes the A/V server to reproduce the picture frame by frame and decides an exact IN point and an exact OUT point. A/V data from the designated IN point to the OUT point is output to the outside of the A/V server. The edited result may be stored as new A/V data to a record medium. 
     Conventionally, as described above, the monitor and the controller are separately disposed. Thus, when performing the editing operation, the operator who performs the editing operation should frequently turn his/her eyes between the monitor and the controller. Consequently, the editing operation is troublesome. 
     In addition, the A/V server may be used outdoors for example sports live broadcasts. In this case, the A/V server, the monitor, and the controller should be disposed in a limited space of a mobile broadcasting vehicle. 
     In addition to the A/V server, the monitor should be carried. In this case, the portability is low. 
     OBJECTS AND SUMMARY OF THE INVENTION 
     Thus, an object of the present invention is provide a data recording and reproducing apparatus and a data displaying method that allow A/V data stored in a record medium to be suitably displayed for an editing operation. 
     Another object of the present invention is to provide a data recording and reproducing apparatus and a picture displaying method that allow A/V data stored in a record medium to be displayed in a limited space. 
     A first aspect of the present invention is a data recording and reproducing apparatus having a recording and reproducing means for recording and reproducing data containing video data and/or audio data to and from a record medium that is non-linearly accessible and a plurality of input and output processing means for accessing the recording and reproducing means in respectively assigned time slot periods, outputting the data that is output from the outside to the recording and reproducing means, and inputting the data from the recording and reproducing means, the apparatus comprising an operating means for performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium, and a displaying means for displaying the data that is input to and that is output from the plurality of input and output means, wherein the operating means and the displaying means are integrally structured. 
     A second aspect of the present invention is a data recording and reproducing apparatus having a recording and reproducing means for recording and reproducing data containing video data and/or audio data to and from a record medium that is non-linearly accessible and a plurality of input and output processing means for accessing the recording and reproducing means in respectively assigned time slot periods, outputting the data that is output from the outside to the recording and reproducing means, and inputting the data from the recording and reproducing means, the apparatus comprising an operating means for performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium, a data storing means for temporarily storing the data recorded in the record medium, and a displaying means for displaying the data stored in the data storing means, wherein the operating means and the displaying means are integrally structured. 
     A third aspect of the present invention is a data recording and reproducing apparatus having a recording and reproducing means for recording and reproducing data containing video data and/or audio data to and from a record medium that is non-linearly accessible and a plurality of input and output processing means for accessing the recording and reproducing means in respectively assigned time slot periods, outputting the data that is output from the outside to the recording and reproducing means, and inputting the data from the recording and reproducing means, the apparatus comprising an operating means for performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium so as to edit the data, a data storing means for temporarily storing the data recorded in the record medium when the data is edited by a predetermined operation performed by the operating means, and a displaying means for displaying the data stored in the data storing means, wherein the operating means and the displaying means are integrally structured. 
     A fourth aspect of the present invention is a data displaying method for a data recording and reproducing apparatus for outputting data containing video data and/or audio data that is supplied from the outside to a record medium that is non-linearly accessible in an assigned time slot period and for outputting the data from the record medium in an assigned time slot period, the method comprising the steps of (a) performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium corresponding to an operation of an operating means, and (b) displaying the data on a displaying means integrally structured with the operating means corresponding to an operation performed at step (a). 
     A fifth aspect of the present invention is a data displaying method for a data recording and reproducing apparatus for outputting data containing video data and/or audio data that is supplied from the outside to a record medium that is non-linearly accessible in an assigned time slot period and for outputting the data from the record medium in an assigned time slot period, the method comprising the steps of (a) performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium corresponding to an operation of an operating means, (b) temporarily storing the data reproduced from the record medium corresponding to the reproduction operation performed at step (a), and (c) displaying the data temporarily stored at step (b) on a displaying means integrally structured with the operating means. 
     A sixth aspect of the present invention is a data displaying method for a data recording and reproducing apparatus for outputting data containing video data and/or audio data that is supplied from the outside to a record medium that is non-linearly accessible in an assigned time slot period and for outputting the data from the record medium in an assigned time slot period, the method comprising the steps of (a) performing at least a record operation for causing the data to be recorded to the record medium and a reproduction operation for causing the data to be reproduced from the record medium corresponding to an operation of an operating means so as to edit the data, (b) temporarily storing the data recorded in the record medium when the data is edited by a predetermined operation performed at step (a), and (c) displaying the data temporarily stored at step (b) on a displaying means integrally structured with the operating means. 
     These and other objects, features and advantages of the present invention will become more apparent in light of the following detailed description of a best mode embodiment thereof, as illustrated in the accompanying drawings. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view showing an appearance of a data recording and reproducing apparatus according to an embodiment of the present invention; 
     FIG. 2 is a front view showing the structures of principal portions of a meter panel and a control panel of the data recording and reproducing apparatus; 
     FIG. 3 is a schematic diagram showing the structure of further principal portions of the control panel; 
     FIG. 4 is a block diagram showing the circuit structure of the data recording and reproducing apparatus according to the embodiment of the present invention; 
     FIGS. 5A,  5 B, and  5 C are schematic diagrams showing outlined structures of file entry information, record entry information, and free space information; 
     FIGS. 6A,  6 B, and  6 C are schematic diagrams showing a file accessing operation with the record entry information; 
     FIG. 7 is a schematic diagram showing an example of the structure of a virtual file VFL; 
     FIG. 8 is a schematic diagram showing an example of the structure of fields of the virtual file VFL; 
     FIGS. 9A and 9B are schematic diagrams for explaining a process for reproducing a file separately written in different fields using a virtual file VFL; 
     FIG. 10 is a schematic diagram showing another example of fields of a virtual file VFL 
     FIG. 11 is a block diagram showing an example of the structure of the control panel; 
     FIG. 12 is a block diagram showing the structure of a moving picture displaying portion of the control panel; 
     FIG. 13 is a schematic diagram showing an example of information displayed on a displaying portion; 
     FIG. 14 is a schematic diagram showing another example of information displayed on the displaying portion; and 
     FIG. 15 is a schematic diagram showing another example of information displayed on the displaying portion. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     FIG. 1 is a perspective view showing an appearance of a data recording and reproducing apparatus according to an embodiment of the present invention. The data recording and reproducing apparatus is an A/V (Audio and/or Video) server that has a plurality of input and output ports and that records and stores audio data and/or video data and reproduces a plurality of channels of stored A/V data in parallel. 
     The data recording and reproducing apparatus  1  according to the embodiment of the present invention has one housing  2 . The size of the housing  2  is almost similar to the size of a conventional VCR. A meter panel  3  is disposed at an upper portion on the front side of the housing  2 . A control panel  4  is disposed below the meter panel  3 . The control panel  4  is detachable from the housing  2 . When the control panel  4  is not used, it can be removed from the housing  2 . Alternatively, the control panel  3  can be removed from the housing  2  and used as an independent unit in such a manner that it is connected a relevant circuit of the housing  2  with a cable. 
     FIG. 2 is a front view showing principal portions of the meter panel  3  and the control panel  4  shown in FIG.  1 . The data recording and reproducing apparatus  1  according to the embodiment of the present invention has four ports as an input portion that inputs A/V data and an output portion that outputs A/V data. Each port can input or output video data and four or eight channels of audio data. 
     The meter panel  3  shown in FIG. 2 has a displaying portion  11 . The displaying portion  11  has four display areas  11 A,  11 B,  11 C, and  11 D corresponding to the four ports. The display areas  11 A,  11 B,  11 C, and  11 D are disposed at an upper left portion, an upper right portion, a lower left portion, and a lower right portion of the displaying portion  11 , respectively. Each of the display areas  11 A to  11 D has an audio level meter portion  12 , a dot matrix portion  13 , a status displaying portion  14 , and an information displaying portion  15 . The audio level meter portion  12  displays audio level meters for four channels. The dot matrix portion  1  displays a time code and so forth. The state displaying portion  14  displays the current operation state (reproduction state, recording state, etc.) of each port. The information displaying portion  15  displays various types of information such as the type of a time code type that is currently displayed. 
     The audio level meter portion  12  displays channel numbers below the audio level meters of the individual channels. With a particular switch that will be described later, the audio level meter portion  12  selectively shows four audio level meters of the first to fourth channels or the fifth to eighth channels that are input/output to/from each port. 
     With the data recording and reproducing apparatus  1  according to the embodiment of the present invention, various operations such as an input selecting operation of A/V data, an audio data recording/reproduction level adjusting operation, and an audio channel selecting operation can be performed for each port. The meter panel  3  has four port selection switches that select the four ports for such operations. 
     The meter panel  3  also has four rotary encoders  17  and a rotary encoder  18 . The four rotary encoders  17  adjust the recording/reproducing levels of four channels of audio data. The rotary encoder  18  adjusts a video process. 
     On the other hand, the control panel shown in FIGS. 2 and 3 has various switches and an operating and displaying portion  21 . The various switches are used for the editing operation. The operating and displaying portion  21  has a displaying portion  200  that displays a picture and so forth for the editing operation. The displaying portion  200  displays a picture used for the editing operation and a recording picture as a moving picture or a still picture. In addition, the displaying portion  200  displays a list of picture files-and attribute information thereof. Moreover, the displaying portion  200  displays menus at a left edge position and a lower edge position thereof. The menus correspond to a plurality of soft keys L 1  to L 11  and F 1  to F 7  disposed in the operating and displaying portion  21 . A mode key  201  is used to select an operation mode. A shift key is used as an auxiliary key along with another key. 
     As with the four port selection switches  16 , the control panel  4  has four port selection switches  22  that select desired ports. The control panel  4  also has a record switch  23 , a rewind switch  24 , a reproduction (playback) switch  25 , a fast forward switch, and a stop switch. A switch  203  is an edit mode switch. With the data recording and reproducing apparatus  1  according to the embodiment, up to two external VCRs can be remotely controlled. The control panel  4  has two switches that select the external VCRs that are remotely controlled. 
     The control panel  4  has two dials  29  and  204 . The dial  29  is used to designate a reproduction speed and a chronological reproduction direction of A/V data. With three selection switches  205 , a mode of the dial  29  is selected. The dial  204  is a rotary encoder that can be rotated and pressed so as to perform a particular control. The dial  204  is referred to as multi-controller. With the dial  204 , a desired operation can be selected and a command can be issued corresponding to a list displayed on the displaying portion  200 . 
     The control panel  4  also has a plurality of switches  206 A,  206 B,  207 , and  208  that are used to designate an IN point and an OUT point for the editing operation. With the two switches  206 A or two switches  206 B, an IN point and an OUT point are designated. When one of two switches  206 A or  206 B and the entry switch  207  are pressed at the same time, an IN point or an OUT point is designated. The switch  208  is an auto edit switch used to automatically designate an IN point or an OUT point corresponding to a predetermined condition. 
     FIG. 4 is a block diagram showing the circuit structure of the data recording and reproducing apparatus according to the embodiment of the present invention. The data recording and reproducing apparatus  1  according to the embodiment of the present invention has a data bus  30 A and a CPU bus  30 B. The data bus  30 A sends A/V data, whereas the CPU bus  30 B sends a command. A timing managing portion  31 , an information managing portion  32 , a recording and reproducing portion  33 , data managing portions  34 A,  34 B,  34 C, and  34 D, and a controlling portion  36  are connected to the buses  30 A and  30 B. Data input and output portions  37 A,  37 B,  37 C, and  37 D are connected to the data managing portions  34 A,  34 B,  34 C, and  34 D, respectively. A special effect portion (effector)  39  is connected to the controlling portion  36 . The meter panel  3  is connected to the controlling portion  36 . The control panel  4  is connected to the timing managing portion  31 . These portions  31  to  39  are structured as respective circuit boards. 
     The timing managing portion  31  has a timing pulse generator  41 . The timing pulse generator  41  generates timing pulses and supplies them to predetermined portions. In reality, the timing pulse generator  41  assigns time slots to the ports  60 A,  60 B,  60 C, and  60 D. The time slots are assigned by the timing pulse generator  41  to CPUs  80 A,  80 B,  80 C, and  80 D through the bus  30 B. In the time slot periods, data stored in buffers  66 ,  67 ,  76 , and  77  is supplied to the recording and reproducing portion  33  through the data bus  30 A. A reference video signal Vref is supplied from the outside of the timing pulse generator  41 . The timing managing portion  31  has an interface  42  (abbreviated as I/F in FIG.  4 ). The interface connects the control panel  4  and the data bus  30 A. 
     The information managing portion  32  has a file managing portion  43  and a network driver  44 . The file managing portion  43  stores file system information that represents a file record area of a record medium. The file managing portion  43  manages files corresponding to the file system information. The network driver  44  is connected to an external network such as Ethernet so as to input and output data with the external network. Such file management information has been filed by the applicant of the present invention. 
     The recording and reproducing portion  33  has a video disk array controller  47 , an audio disk array controller  48 , and a buffer memory  49 . The video disk array controller  47  is connected to a plurality of hard disk drives  45  (hereinafter abbreviated as HDDs  45 ) that record video data. The video disk array controller  47  controls the HDDs  45 . The audio disk array controller  48  is connected to a plurality of HDDs  46  that record audio data. The audio disk array controller  48  controls the HDDs  46 . The buffer memory  49  is disposed among the disk array controllers  47  and  48  and the data bus  30 A. The buffer memory  49  temporarily stores data. The recording and reproducing portion  33  has nine video data HDDs  45  (eight HDDs  45  are used for recording A/V data; one HDD  45  is used for recording parity data). In addition, the recording and reproducing portion  33  has two audio data HDDs  46 . The two HDDs  46  and the audio disk array controller  48  are structured corresponding to RAID1. 
     The controlling portion  36  has and editing portion  51 , an interface  52  (abbreviated by I/F in FIG. 4) and a CPU  81 . The interface  52  connects the meter panel  3  and the data bus  30 A. The CPU  81  is connected to the CPU bus  30 B. Thus, the CPU  81  can communicate with other portions connected to the CPU bus  30 B. An edit command CE can be input from the outside of the controlling portion  36  to the interface  52 . The editing portion  51  has functions of a matrix switcher and an audio mixer. The editing portion  51  is connected to the special effect portion  39 . The editing portion  51  has two data output paths for outputting data to the special effect portion  39  and one data input path for inputting data from the special effect portion  39 . The editing portion  51  can output monitor data DM. 
     The special effect portion  39  performs a process for obtaining a special effect such as dissolve effect or wipe effect. 
     The data input and output portions  37 A,  37 B,  37 C, and  37 D are connected to terminals  61 A,  61 B,  61 C, and  61 D, respectively. In this example, it is assumed that the terminal  61 A is a data input terminal and the terminals  61 B to  61 D are data output terminals. In addition, it is assumed that A/V data that is input and output with the terminals  61 A to  61 D is digital data corresponding to for example serial digital interface (hereinafter referred to as SDI and standardized as SMPTE-259M in SMPTE). 
     The data input and output portion  37 A and the data managing portion  34 A compose the port  60 A. The data input and output portion  37 B and the data managing portion  34 B compose the port  60 B. The data input and output portion  37 C and the data managing portion  34 C composes the port  60 C. The data input and output portion  37 D and the data managing portion  34 D compose the port  60 D. 
     The data input and output portion  37 A has an encoder  62  and a selection switch  64 . The encoder  62  extracts video data or the like from the SDI format data and compresses the extracted video data or the like. The selection switch  64  selects one from two inputs. One input terminal of the switch  64  is connected to the terminal  61 A; the other input terminal thereof is connected to the editing portion  51 . The output terminal of the switch  64  is connected to an input terminal of the encoder  62 . The terminal  61 A is also connected to the editing portion  51 . 
     The data input and output portion  37 B has a decoder  63  and a selection switch  65 . The decoder  63  decompresses compressed data and converts it into SDI format data. The selection switch  65  selects one from two inputs. One input terminal of the switch  65  is connected to an output terminal of the decoder  63 ; the other input terminal is connected to the editing portion  51 . The output terminal of the switch  65  is connected to the terminal  61 B. The output terminal of the decoder  63  is also connected to the editing portion  51 . 
     The data input and output portion  37 C has a decoder  72  and a selection switch  74 . The decoder  72  decompresses compressed data and converts it into SDI format data. The selection switch  74  selects one from two inputs. One input terminal of the switch  74  is connected to an output terminal of the decoder  72 ; the other input terminal of the switch  74  is connected to the editing portion  51 . The output terminal of the switch  74  is connected to the terminal  61 C. The output terminal of the decoder  72  is also connected to the editing portion  51 . 
     The data input and output portion  37 D has a decoder  73  and a switch  75 . The decoder  73  decompresses compressed data and converts it into SDI format data. The selection switch  75  selects one from two inputs. One input terminal of the switch  75  is connected to an output terminal of the decoder  73 ; the other input terminal of the switch  75  is connected to the editing portion  51 . The output terminal of the switch  75  is connected to the terminal  61 D. The output terminal of the decoder  73  is also connected to the editing portion  51 . 
     The data managing portion  34 A has a buffer memory  66  disposed between the output terminal of the encoder  62  of the data input and output portion  37 A and the data bus  30 A. The data managing portion  34 B has a buffer memory  67  disposed between the data bus  30 A and the input terminal of the decoder  63  of the data input and output portion  37 B. The data managing portion  34 C has a buffer memory  76  disposed between the data bus  30 A and the input terminal of the decoder  72  of the data input and output portion  37 C. The data managing portion  34 D has a buffer memory  77  disposed between the data bus  30 A and the input terminal of the decoder  73  of the data input and output portion  37 D. The buffer  66  stores data in such a manner that input data is output in the assigned time slot period. On the other hand, the buffers  67 ,  76 , and  77  store data in such a manner that data that is output from the recording and reproducing portion  33  is output for each frame to the decoders  63 ,  72 , and  73  in their assigned time slot periods, respectively. 
     The data managing portion  34 A has the above-mentioned CPU  80 A that communicates with other portions connected to the CPU bus  30 B. Likewise, the data managing portions  34 B,  34 C, and  34 D have the above-mentioned CPUs  80 B,  80 C, and  80 D, respectively, that communicate with other portions connected to the CPU bus  30 B. 
     The data managing portion  34 A inputs a record command CR from the outside. The data managing portion  34 A sends data that is input from the terminal  61 A to the recording and reproducing portion  33  in the assigned time slot period and causes the recording and reproducing portion  33  to perform a recording operation for the data corresponding to the record command CR. A reproduction (playback) command CP can be input to the data managing portions  34 B to  34 D from the outside. The data managing portions  34 B to  34 D cause the recoding/reproducing portion  33  to perform a reproducing operation corresponding to the reproduction command CP. In addition, the data managing portions  34 B to  34 D input the data to the ports  60 B to  60 D in the assigned time slot periods and cause the data to be output from the terminals  61 B to  61 D, respectively. 
     The data input and output portions  37 A to  37 D and the data managing portions  34 A to  34 D can be substituted with those of another type. For example, one of output type pairs of the data input and output portion  37 B and the data managing portion  34 B; the data input and output portion  37 C and the data managing portion  34 C; and the data input and output portion  37 D and the data managing portion  34 D can be substituted with an input type pair of the data input and output portion  37 A and the data managing portion  34 A. In this case, the data recording and reproducing apparatus  1  becomes an apparatus having two input ports and two output ports. Of course, in various combinations, for example, the data recording and reproducing apparatus  1  can be used as an apparatus having one output port and three input ports. 
     Next, the operation of the data recording and reproducing apparatus  1  according to the embodiment of the present invention will be described. First of all, the operation for recording A/V data that is input from the outside will be described. SDI format data is input to the terminal  61 A. This data is sent to the encoder  62  through the switch  64  of the data input and output portion  37 A. The encoder  62  compresses the input data. The compressed data is temporarily stored in the buffer memory  66  of the data managing portion  34 A. The data managing portion  34 A accesses the recording and reproducing portion  33  in the assigned time slot period and sends data stored in the buffer memory  66  to the recording and reproducing portion  33  through the data bus  30 A. 
     In the recording and reproducing portion  33 , the received data is temporarily stored in the buffer memory  49 . Thereafter, the data is read from the buffer memory  49  and then video data and audio data thereof are input to the video disk array controller  47  and the audio disk array controller  48 , respectively. The video disk array controller  47  divides the input video data in a predetermined unit, calculates parity data, and records the divided data and the parity data to a predetermined one of the HDDs  45 . On the other hand, the audio disk array controller  48  records the input audio data to the two HDDs  46 . 
     Next, the operation for outputting recorded data to the outside will be described. In this case, a predetermined one of the data managing portions  34 B to  34 D accesses the recording and reproducing portion  33  in the assigned time slot period and causes the recording and reproducing portion  33  to reproduce data. In the data reproducing portion  33 , the video disk array controller  47  reads divided video data and parity data from the HDDs  45 . The video disk array controller  47  combines the divided video data that is read from the HDDs  45  and detects and corrects an error of the combined video data corresponding to the parity data. The audio disk array controller  48  reproduces error-free audio data from one of the two HDDs  46 . The reproduced video data and audio data are temporarily stored to the buffer memory  49 . Thereafter, the video data and audio data are read from the buffer memory  49  and sent to one of the data managing portions  34 B to  34 D through the data bus  30 A. 
     When data is output from the terminal  61 B to the outside, the reproduced data is supplied to the decoder  63  of the data input and output portion  37 B through the buffer memory  67  of the data managing portion  34 B. The decoder  63  decompresses the reproduced data and converts it into SDI format data. The SDI format data is output from the terminal  61 B to the outside through the switch  65 . Alternatively, the reproduced data is sent to the decoder  72  of the data input and output portion  37 C through the buffer memory  76  of the data managing portion  34 C. The decoder  72  decompresses the reproduced data. The decompressed data is output from the terminal  61 C to the outside through the switch  74 . Alternatively, the reproduced data is sent to the decoder  73  of the data input and output portion  37 D through the buffer memory  77  of the data managing portion  34 D. The decoder  73  decompresses the reproduced data. The decompressed data is output from the terminal  61 D to the outside through the switch  75 . 
     In the data recording and reproducing apparatus  1  according to the embodiment of the present invention, since the data managing portions  34 A to  34 D operate on time division basis, the same data or different data can be output simultaneously from the three terminals  61 B to  61 D. 
     Next, the operation for editing data will be described. The editing portion  51  of the controlling portion  36  performs an editing operation using at least one of data that is input from the outside and data reproduced from the recording and reproducing portion  33 . In other words, the editing portion  51  can input data from the outside through the terminal  61 A and data that is reproduced by the recording and reproducing portion  33  and decompressed by the decoders  63 ,  72 , and  73 . With at least one of these input data, the editing portion  51  performs an editing operation using the local matrix switcher and audio mixer. When necessary, the editing portion  51  performs the editing operation using the special effect portion  39 . The editing, portion  51  can perform an AB role editing operation for a special effect such as dissolve effect or wipe effect. 
     The editing portion  51  can output edited data to one of the switches  64 ,  65 ,  74 , and  75 . The data that is output to the switch  64  is recorded to the HDDs  45  and  46  by the recording and reproducing portion  33 . The data that is output to the switches  65 ,  74 , and  75  are output from the terminals  61 B,  61 C, and  61 D, respectively. 
     In the data recording and reproducing apparatus  1  according to the embodiment of the present invention, with the meter panel  3 , various operations such as an input port selecting operation of A/V data, an audio data recording/reproduction level adjusting operation, and an audio data monitor channel selecting operation can be performed. The displaying portion  11  of the meter panel  3  can display the operation states of the four ports. 
     In the data recording and reproducing apparatus  1  according to the embodiment, with the control panel  4 , the editing operation can be performed. 
     Next, the above-mentioned file system will be described in detail. The file system is a system that manages record positions of files recorded in the HDDs  45  of the recording and reproducing portion  33  as the server portion. The file managing portion  43  performs the file managing operation of the file system. 
     The file system information is mainly composed of three types of information: 
     (1) file entry information, 
     (2) record entry information, and 
     (3) free space list information. 
     FIGS. 5A,  5 B, and  5 C show examples of these three types of information. The file entry information, the record entry information, and the free space information are stored as file management information to the information managing portion  32 . 
     The file entry information (1) shown in FIG. 5A is composed of a file name and pointer information for the first record entry information. Thus, the file entry information is generated for each file. The file entry information is linked to record entry information corresponding to link information. When a record entry is recorded to a memory (not shown) of the file managing portion  43 , the link information is equivalent to pointer information for an address at which the record entry is recorded. 
     The record entry information (2) as shown in FIG. 5B contains address information and data length information. The address information represents the start address of a file in the HDDs  45 . The data length information represents the data length of a successive area for which the file is successively written from the start address. The record entry information also contains link information for the next record entry information. 
     One file may be separately written in different areas of the HDDs  45 . In this case, record entry information is generated for each separated area. The link information is for example pointer information that represents a link to record entry information that is the next area of the separated file. When the record entry information for each separated area is traced for pointer information contained in link information, address information of a file separately recorded in different areas can be obtained. When a file is completed in a successive area, for example “EOF (End Of File)” is written as link information. 
     FIGS. 6A,  6 B, and  6 C show a file accessing operation using record entry information. In this example, it is assumed that a file with a file name “A” (hereinafter, this file is abbreviated as file “A”) is written to an address apace of an HDD as shown in FIG.  6 A. In other words, the file “A” is divided into three portions. The first portion, the second portion, and the third portion of the file “A” are written to address “50” to address “100”, address “200” to address “300”, and address “500” to address “750”. In the following description, the values of addresses correspond to record/reproduction duration (minutes). For example, the address length “100” from address “100” to address “200” is represented as reproduction length “100”. 
     FIG. 6B shows examples of file entry information (FE) and record entry information (RE) corresponding to the divided file portions shown in FIG.  6 A. The file entry information contains the file name “A” and link information that links to the first record entry information. The link information represents the file name of the first record entry information to be linked first. Alternatively, the position of record entry information (for example, pointer information that represents an address) may be directly used as link information. 
     In the example of which the file “A” is divided into three portions, three sets of record entry information are generated. The first portion is successively written from address “50” to address “100” for data length “50”. In other words, data is successively written from address “50” to address “100”. The file “A” is written to the next successive area. When The link information is traced, record entry information that represents the next successive area of the file “A” is referenced. The record entry information represents that data is written to a successive area starting from address “200” for data length “100” (namely, from address “100” to address “200”). The file is also written to the next (third) successive area. As with the second successive area, when the link information is traced, record entry information that represents the third successive area of the file “A” is referenced. Since the file “A” ends at address “750”, the record entry information is not linked to another successive area. The record entry information contains “EOF” as link information. 
     The free space list information (3) contains information of a blank area in which data is not written. The structure of the free space list information is similar to the structure of the record entry information. In other words, as shown in FIG. 5C, the free space list information contains address information at which a blank area in which data is not written starts and the length of the blank area. In addition, the free space list information contains link information for the next free space list information. The link information is for example a file name of the first free space list information to be linked. Alternatively, the position of free space list information (for example, pointer information that represents an address) may be directly used as link information. 
     FIG. 6C shows a plurality of sets of free space list information that are linked corresponding to the divided portions of the file A shown in FIG.  6 A. In the example shown in FIG. 6A, an area from address “0” to address “50”, an area from address “100” to address “200”, and an area from address “300” to address “500” are areas in which data is not written. Thus, as shown in FIG. 6C, the first free space list information represents that the start address of the successive blank area is “0” and that the length thereof is “50”. When the link information is traced, the next free space list information is referenced. The second free space list represents that the start address of the blank area is “100” and that the length thereof is “100”. When the link information is traced, the next (third) free space information is referenced. The third free space information represents that the start address of the blank area is “300” and that the length thereof is “200”. The free space list information contains “EOF” that represents there is no blank area in the HDD. Thus, when a plurality of sets of free space list information are successively referenced corresponding to link information, blank areas of the HDD can be obtained. 
     With three types of information as file entry information, record entry information, and free space information according to the embodiment of the present invention, the file system that manages files recorded in the HDDs  45  is structured. In the case that the file “A” has been written to the HDDs  45 , when another file “B” is written to the HDDs  45 , file entry information is generated corresponding to the file “B”. With reference to free space list information, the file “B” is written to the HDDs  45 . At this point, record entry information is generated corresponding to the write address and the data length of the file “B”. Since the file “B” is written, the blank areas of the HDDs  45  vary. Thus, the free space list information is rewritten. 
     These file entry information, record entry information, and free space information are registered as file management information to for example the file managing portion  43 . 
     Next, the editing operation for A/V data according to the embodiment of the present invention will be described. In this embodiment, an edited result is not output as a real A/V data file. Instead, a virtual file that represents an edited result is generated (hereinafter, the virtual file is referred to as virtual file list VFL). The VFL contains information necessary for the data recording and reproducing apparatus  1  to reproduce the edited result. 
     An editing device is connected to the data recording and reproducing apparatus  1 . In the data recording and reproducing apparatus  1  according to the embodiment, with the control panel  4 , stored A/V data can be edited. In this example, the case that an external editing device is connected to the data recording and reproducing apparatus  1  will be described. 
     Various commands such as an edit command CE, a playback (reproduction) command CP, and a record command CR are supplied from the data recording and reproducing apparatus  1  to the editing device. When the file “A” stored in the data recording and reproducing apparatus  1  is edited, information that represents the file “A” is supplied from the editing device to the data recording and reproducing apparatus  1 . Since the data recording and reproducing apparatus  1  manages areas of the file “A” recorded in the HDDs  45  corresponding to file management information stored in the information managing portion  32 , the information managing portion  32  issues the reproduction (playback) command to the recording and reproducing portion  33  and causes it to reproduce the file “A”. The reproduced file “A” is supplied to for example the port  60 B through the data bus  30 A and then transmitted to the editing device through the port  60   b.    
     The file “A” is input to the editing device. The picture and sound of the file “A” are output from a monitor that is built in or connected to the editing device. While observing the picture with the monitor, the editing operator who edits the file “A” designates edit points that represent a portion used in the file “A” with an operating means disposed in the editing device. The editing operation includes various operations such as a designating operation for an IN point and an OUT point that represent a reproduction start point and a reproduction end point, respectively, and a special effect operation such as wipe effect or dissolve effect. Next, the case that the operator designates an IN point and an OUT point will be described. 
     After an IN point and an OUT point have been designated, the edited result is sent to the data recording and reproducing apparatus  1 . At this point, according to the embodiment, along with the file name of the edited A/V file, only the information of the designated IN point and OUT point is sent to the data recording and reproducing apparatus  1 . In other words, a real A/V file corresponding to the edited result is not generated. The above-mentioned VFL is composed of the file name and information of the designated IN point and OUT point. 
     The generated VFL is sent to the data recording and reproducing apparatus  1 . After the VFL is sent to the data recording and reproducing apparatus  1  and stored to a memory (not shown) of the information managing portion  32 , the editing operation is completed. When the data recording and reproducing apparatus  1  reads A/V data stored in the HDDs  45  corresponding to the VFL, the edited material is output. In other words, when the VFL is used, it is not necessary to record the edited result as a new A/V file. Thus, the material can be edited and the edited result can be sent on real time basis. 
     FIG. 7 shows an example of the structure of the VFL. The VFL contains the file name of a relevant A/V file, the reproduction start position of the file (namely, information of an IN point), and the reproduction end position of the file (namely, information of an OUT point). The reproduction start position and the reproduction end position are address information of the start position and the end position of the address space of the relevant A/V file. 
     In the example shown in FIG. 6A, when position “10” and position “60” of a file “A” with length “400” are designated as an IN point and an OUT point, respectively, as shown in FIG. 8, the reproduction start position and the reproduction end position are “10” and “80”, respectively. 
     As was described above, when a file is written to the HDDs  45 , the file may be separately written to different areas of the HDDs  45 . The separated file portions can be managed as one successive file by the file managing portion  43  that successively traces link information of record entry information. 
     Next, it is considered that a reproduction start position and a reproduction end position of the VFL may be separately written in different areas of the HDDs  45 . FIGS. 9A and 9B show an operation performed corresponding to the case shown in FIG.  6 A. FIG. 9A shows areas of a file “A” that are separately recorded in the HDDs  45 . FIG. 9B shows a reproduction start position and a reproduction end position of the address space of the VFL. 
     The file managing portion  43  accesses the reproduction start position contained in the VFL of the file “A” with the file start position data and the record length data of the successive area contained in the record entry information corresponding to the file entry information and the record entry information. In the example shown in FIG. 9A, the start position of the file “A” is address “50” of the address space of the HDDs  45 . Since the VFL represents that the reproduction start position is address “10” of the address space for the file “A”, it is reproduced from address “60” of the address space of the HDDs  45  (address “60” is obtained by adding length “10” to address “50” of the address space of the HDDs  45 ). 
     When the reproduction length that exceeds the record length of the successive area represented in the record entry information is designated with the reproduction start position and the reproduction end position of the VFL, the next record entry information is linked with the link information of the record entry information. In the example shown in FIG. 9A, the reproduction length represented by the VFL is “50”, whereas the record area represented by the first record entry information is from address “50” to address “100” of the address space of the HDDs  45 . Since the file “A” is reproduced from address “60”, to reproduce the file “A” for the reproduction length designated by the VFL, it is necessary to further reproduce data for length “10”. The data with length “10” is reproduced from the file start position represented by the next record entry information linked corresponding to the link information. In other words, data from address “200” to address “210” of the address space of the HDDs  45  is reproduced. 
     In other words, a reproduction area represented by the VFL for the file “A” in the address space of the VFL is separately written to a first areas with length “40” and a second area with length “10” of the HDDs  45  corresponding to a successive area of the address space of the HDDs  45  as shown in FIG.  9 B. 
     On the other hand, when the VFL contains information as shown in FIG. 10, in the address space of the HDDs  45 , data is reproduced as a successive area from address “60” to address “100”. 
     FIG. 11 shows an example of the structure of the control panel  4 . The control panel  4  has a switch board portion  120  and a CPU board portion  121 . In addition, the control panel  4  has an LCD (Liquid Crystal Display)  113  and an LCD I/F  112 . The LCD I/F  112  is an interface that interfaces with the CPU board  121  and the LCD  113 . The LCD  113  corresponds to the displaying portion  200  of the control panel  4 . 
     In the CPU board portion  121 , a main CPU  100 , a ROM  101 , a RAM  102 , and a DPRAM (dual port RAM)  103  are connected to a bus  150 A. The main CPU  100  operates corresponding to program data stored in the ROM  101 . The main CPU  100  performs a process for receiving a command from the outside. The RAM  102  is a work memory of the CPU  100 . A NAND flash memory  116  that is a data rewritable memory is connected to the main CPU  100 . An internal synchronous signal (INT SYNC) generated by a sub CPU  108  (that will be described later) is supplied to the main CPU  100 . 
     The DPRAM  103  is a RAM having two input/output ports that independently input and/or output data. The main CPU  100  communicates with the sub CPU  108  through the DPRAM  103 . 
     On the other hand, in the CPU board  121 , the sub CPU  108 , a ROM  109 , a RAM  110 , and the DPRAM  103  are connected to a bus  150 B. The sub CPU  108  operates corresponding to program data stored in the ROM  109  and controls peripheral portions. The RAM  110  is a work memory for the sub CPU  108 . An external synchronous signal (EXT SYNC) that is output from a capture controller  106  (that will be described later) is supplied to the sub CPU  108 . The sub CPU  108  generates the above-described internal synchronous signal. 
     In addition, an Ether I/F  111  that is a communication interface corresponding to Ethernet standard is connected to the sub CPU  108 . The CPU board  121  (namely, the control panel  4 ) is connected to an interface  42  through the Ether I/F  111 . Thus, the CPU board  121  communicates with the data recording and reproducing apparatus  1 . A monitor output DM that is received from the editing device  51  of the data recording and reproducing apparatus  1  is supplied to the capture controller  106  (that will be described later). In FIG. 11, the monitor output DM and a signal supplied to the Ether I/F  111  are connected. This means that a common connector is used for the monitor output DM and the signal sent to the Ether I/F  111 . 
     An interface  114  (that will be described later) of the switch board portion  121  is connected to the sub CPU  108 . 
     An LCD controller  104 , an LCD RAM  105 , a capture controller  106 , and a capture RAM  107  are connected to the bus  150 B. 
     The LCD controller  104  controls the display of the LCD  113  corresponding to the supplied internal synchronous signal. The LCD RAM  105  is composed of two memories that are an upper memory and a lower memory of which display data of the upper half of the display area of the LCD  113  and display data of the lower half thereof are written to addresses corresponding to the display positions. The display data is supplied from for example the main CPU  100  or the capture controller  106  (that will be described later) to the LCD controller  104 . The LCD controller  104  alternately writes and reads data to/from the two memories of the LCD RAM  105  so that one screen of the LCD  113  is formed. The data that is read from the LCD RAM  105  is supplied to the LCD controller  104  through the bus  152 . The display data that is output from the LCD controller  104  is supplied to the LCD  113  through the LCD I/F  112 . The LCD  113  displays the supplied display data. 
     As described above, video data that is the monitor output DM of the data recording and reproducing apparatus  1  is supplied to the capture controller  106 . The capture RAM  107  is composed of two memories that are an odd memory and an even memory corresponding to odd fields and even fields, respectively. The capture controller  106  alternately switches these two memories corresponding to relevant fields of the video data and captures field pictures at predetermined timings. The video data that is read from the capture RAM  107  is supplied to the capture controller  106  through the bus  152 . The capture controller  106  generates a synchronous signal corresponding to the supplied video data and outputs the synchronous signal as an external synchronous signal. 
     As will be described later, the capture controller  106  and the LCD controller  104  are connected with a bus  151 . Video data supplied to the capture controller  106  is thinned out at predetermined intervals and thereby the picture size is reduced. The reduced video data is supplied to the LCD controller  104 . Thus, the displaying portion  200  can display a moving picture. 
     In the switch board portion  120 , the dials  29  and  104 , the soft keys L 1  to L 11  and F 1  to F 7 , and a SW/LED  115  are connected to the interface  114 . Rotation angle information of the dial  29  is supplied to the interface  114 . Rotation angle information and pressure information of the dial  104  are supplied to the interface  114 . Pressure information of the soft keys L 1  to L 11  and F 1  to F 7  is supplied to the interface  114 . On the other hand, the SW/LED  115  is a switch block including switches having displaying means of for example LEDs (Light Emission Diodes). For example, the switches  22  to  28 , the switch  203 , and the switches  205  to  208  correspond to the SW/LED  115 . Pressure information of the SW/LED  115  is supplied to the interface  114 . A display control signal of the displaying means is supplied from the interface  114  to the SW/LED  115 . The interface  114  converts pressure information and rotation angle information supplied from the dials  29  and  104 ,the soft keys L 1  to L 11  and F 1  to F 7 , and the SW/LED  115  into predetermined control signals and supplies the control signals to the sub CPU  108 . 
     As described above, the displaying portion  200  (namely, the LCD  113 ) can display: 
     (1) a list of A/V files stored in the recording and reproducing portion  33 , 
     (2) a moving picture that is input from a video camera or the like connected to the data recording and reproducing apparatus  1 , 
     (3) a still picture (stamp picture) obtained at the beginning of the recording operation, and 
     (4) still pictures and moving pictures for an IN point and an OUT point in the editing operation. 
     First, a method for displaying the file list (1) will be described. The file names of A/V files stored in the recording and reproducing apparatus  33  are registered as file management information to the file managing portion  43 . For example, when the data recording and reproducing apparatus  1  gets started, a CPU board portion  120  of the control panel  4  requests the file managing portion  43  for the file management information. Thus, the file management information is read from the file managing portion  43 . In this case, at least a file name and a material number added thereto are read as the file management information. The file management information that is read from the file managing portion  43  is supplied to the CPU board portion  120  through the Ether I/F  111  and written as file list information to for example the NAND flash memory  116 . 
     In the switch panel portion  120 , when the switches  23  and  25  on the control panel  4  are operated at the same time, a record command for video data that is input to for example the port  60 A is issued. This command is supplied to the CPU board portion  121 . When the CPU board portion  121  receives the command, a file name that is not used in the file list information is generated as a record file name. The record command and the record file name are suppled from the CPU board portion  121  to the CPU  80 A of the board  60 A. 
     The record file name is also supplied to the file managing portion  43 . The file managing portion  43  opens a file with the record file name for a blank area of the recording and reproducing portion  33  corresponding to the free space list information registered as the file management information. The video data that is input to the port  60 A is processed in a predetermined manner and then supplied to the recording and reproducing portion  33 . The recording and reproducing portion  33  starts recoding the video data to the file with the record file name. 
     When the recording operation gets started, the record file name is supplied to the CPU board portion  121  of the control panel  4  through the file managing portion  43 . Thus, the file list information stored in the memory  116  is updated with the record file name. The updated file list information is supplied to the LCD controller  104  through the DPRAM  103 . The file list of the LCD RAM  105  is written as display data to an address corresponding to the display position of the LCD  113 . The display data is read from the LCD RAM  105  and supplied to the LCD  113  through the LCD I/F  112 . The LCD  113  displays the display data as a file list. 
     Next, a method for displaying a moving picture (2) that is input from a video camera or the like connected to the data recording and reproducing apparatus  1  will be described. FIG. 12 is a block diagram showing the structure of a moving picture displaying portion of the control panel shown in FIG. 11. A video processor  130  and a capture controller  131  correspond to the capture controller  106  shown in FIG.  11 . An LCD memory controller  133  corresponds to the LCD controller  105 . Two buffers  132 A and  132 B connected to the capture buffer controller  131  correspond to the two memories of the capture RAM  107 . The buffer  132 A stores picture data of an odd field. The buffer  132 B stores picture data of an even field. Likewise, two memories  134 A and  134 B connected to the LCD memory controller  133  store display data of an upper portion and a lower portion of the LCD  113  at addresses corresponding to display positions, respectively. 
     The monitor output DM is supplied as an analog video signal to the video input processor  130 . The video input processor  130  converts the supplied analog video signal into digital video data and supplies it to the capture buffer controller  131 . At this point, the video input processor extracts a synchronous signal from the analog video signal. The extracted synchronous signal is supplied as an external synchronous signal to the capture buffer controller  131 . 
     The capture buffer controller  131  averages for example every four lines of the supplied video data. Likewise, the capture buffer controller  131  performs an interpolating process in the horizontal direction of the supplied video data. Thus, the picture size of the video signal that is input to the processor  130  is reduced to ¼ in each of the vertical direction and the horizontal direction. The odd field and even field of the resultant picture data are alternately written to the buffers  132 A and  132 B, respectively, under the control of the capture buffer controller  131 . 
     Picture data is read from one of the buffers  132 A and  132 B while picture data is written to the other. The picture data that is read from one of the buffers  132 A and  132 B is supplied to the LCD memory controller  133 . 
     The sub CPU  108  supplies display data such as file list information to the LCD memory controller  131 . The LCD memory controller  133  alternately writes display data to one of the memories  134 A and  134 B corresponding to the upper area and the lower area of the LCD  113  and reads display data from the other, field by field. The display data that is read from one of the memories  134 A and  134 B and the internal synchronous signal are supplied to the LCD  113 . 
     When display data is alternately updated in the memories  134 A and  134 B, field by field, there is a blanking interval in which the display data is not-read from the memories  134 A and  134 B to the LCD  113 . Video data written to the buffers  132 A and  132 B is written to the memories  134 A and  134 B at the blanking interval under the control of the capture buffer controller  131  and the LCD memory controller  133 . At this point, corresponding to address data supplied to the capture buffer controller  131  and the LCD memory controller  133 , the write addresses of the memories  134 A and  134 B are controlled so that the video data displayed at a predetermined position. 
     The video data that is suppled as the monitor output DM from the data recording and reproducing apparatus  1  is delayed by one field and output to the LCD  113 . 
     Next, with reference to FIG. 11, a method for displaying a stamp picture (3) obtained at the beginning of the recording operation will be described. According to the embodiment of the present invention, when video data that is input from a video camera connected to the data recording and reproducing apparatus  1  is recorded, the top picture of the video data can be stored as a stamp picture to the flash memory  116 . In other words, picture data for one field is obtained when the recording operation is performed. The obtained picture data is reduced in a predetermined method, correlated with file information such as a material number and a file name of a record file, and stored as a stamp picture to the flash memory  116 . When a file is selected from the above-described file list being displayed, a stamp picture that has been stored can be displayed on the displaying portion  200 . 
     For example, it is assumed that a video camera is connected to the port  60 A and then a record command is issued from the control panel  4  so as to record video data. Video data that is output from the video camera connected to the port  60 A is always supplied from the terminal  61 A to the port  60 A. The video data is input to one input terminal of the switch  64  and supplied to the editing portion  51 . The video data that is supplied to the editing portion  51  is output as a monitor output DM and supplied to the capture controller  106  of the control panel  4 . The monitor output DM is displayed on the LCD  113  in the above-described method for displaying a moving picture (1). 
     When the operator presses the record switch  23  and the reproduction (playback) switch  25  of the control panel  4  at the same time, a relevant signal is supplied to the sub CPU  108 . The sub CPU  108  outputs a record start request corresponding to the signal. The record start request is supplied from the sub CPU  108  to the main CPU  100  through the DPRAM  103 . The main CPU  100  issues a record command to the port  60 A corresponding to the supplied record start request. The record command is supplied to the data recoding/reproducing apparatus  1  through the Ether I/F  111  and then supplied to the port  60 A. 
     In addition to the record command, the main CPU  100  supplies to the sub CPU  108  a capture request for video data supplied as the monitor output DM to the capture controller  106 . The capture request causes a command to be issued so that video data is captured when the recording operation is started. In other words, the recording operation corresponding to the record command issued by the main CPU is delayed for a predetermined time period. Since the delay time period is known, the capture request is issued so that the video data is delayed for the predetermined time period. 
     Corresponding to the capture request, the sub CPU  108  causes the capture controller  106  to capture video data. In other words, as described in the method displaying a moving picture (2), video data is always processed in a predetermined manner under the control of the capture controller  106  and the LCD controller  104 . The resultant video data is supplied to the LCD  113 . Thus, when the capture request is issued, data is read from the capture RAM  107 . Thus, video data for one field can be captured. The captured picture data is written to the RAM  103  through the DPRAM  103 . 
     When the recording operation for video data has been normally started on the port  60 A, a relevant message is sent from the port  60 A to the main CPU  100 . In other words, the message that represents that the recording operation has been normally started and file information of the recording video data such as a material number are output. The message and the file information are supplied to the sub CPU  108  of the CPU board portion  120  through the CPU bus  30 B, the interface  42 , the Ether I/F  111 , and so forth. In addition, the message and the file information are supplied from the sub CPU  108  to the main CPU  100  through the DPRAM  103 . The main CPU  100  correlates the captured picture data written to the RAM  102  with the file information and writes the resultant data to the NAND flash memory  116 . 
     When the main CPU  100  receives a message that represents that the recording operation has not been normally started, the captured picture data written to the RAM  102  is discarded. 
     In the above-mentioned example, the case that the top picture of video data is stored as a stamp picture was described. However, it should be noted that the present invention is not limited to such an example. Instead, after the recording operation is started, an intermediate picture may be stored as a stamp picture. Alternatively, the last picture of the video data may be stored as a stamp picture. 
     Next, a method for displaying stamp pictures (4) for an IN point and an OUT point in the editing operation will be described. When the editing operation is performed, an A/V file is reproduced from the recording and reproducing portion  33 . Video data reproduced by the recording and reproducing portion  33  is supplied to for example the port  60 B and output as a monitor output DM through the decoder  63  and the editing portion  51 . The monitor output DM is displayed on the LCD  113  through the capture controller  106 . With the monitor output DM displayed on the LCD  113 , an IN point and an OUT point are designated. Since the operation for obtaining a stamp picture for an IN point is the same as that for an OUT point, for simplicity, only the operation for obtaining an IN point will be described. 
     The stamp picture is obtained in almost the same as the method for displaying a stamp picture (3) obtained at the beginning of the recording operation. When the edit key  203  is pressed on the control panel  4 , the data recording and reproducing apparatus  1  operates as an edit mode. 
     In addition to the edit mode, the data recording and reproducing apparatus  1  has a material mode and a setup mode. The material mode is used to record or reproduce data to/from a file. The setup mode is used to set various types of information for the data recording and reproducing apparatus  1 . 
     When the switch  25  is pressed, video data is reproduced from a selected A/V file. The reproduced video data is displayed as a moving picture on the LCD  113  in the above-described manner. While observing video data displayed on the LCD  113 , the operator presses the IN point input switch of the switch  206 B and the switch  207  at the same time so as to designate an IN point. The designated IN point information is supplied to the sub CPU  108  through the interface  114 . In addition, the designated IN point information is supplied to the main CPU  100  through the DPRAM  103 . 
     Corresponding to the designated IN point information, a capture request is issued from the main CPU  100  to the sub CPU  108  through the DPRAM  103  so that video data is captured when the IN point is designated. The sub CPU  108  causes the capture controller  106  to capture video data. A stamp picture of which video data has been captured is written to the RAM  102 . Predetermined edit data is added to the stamp picture written to the RAM  102 . The resultant data is stored to the NAND flash memory  116 . 
     The edit data added to the stamp picture contains for example an identification of an IN point or an OUT point for a stored stamp picture and a page number. The page number is data equivalent to one edit cut. The page number represents the order of edit cuts of a material to be edited. 
     FIGS. 13,  14 , and  15  show examples of the displaying portion  200  that display file list information, a moving picture, and a stamp picture that are obtained in the above-described methods. FIG. 13 is an example showing a stamp picture of a file selected corresponding to file list information. This is an example of a display screen in the material mode. 
     The displaying portion  200  displays a menu  300  at a left edge position thereof. The menu  300  represents functions corresponds to the soft keys L 1  to L 11 . The display portion  200  displays a menu  301  at a lower edge position thereof. The menu  301  represents functions corresponding to the soft keys F 1  to F 7 . An upper portion of the displaying portion  200  is a port information display area  310  for displaying information of a port selected by the port selection switch  22 . The CPUs  80 A to  80 D of the ports  60 A to  60 D always monitor the states of the respective ports and supply information that represents the port states to the control panel  4  through the CPU bus  30 B and the interface  42 . 
     Almost the lower half portion of the displaying portion  200  is a file list display area  302 . The file list display area  302  represents a list of material numbers, file names, and file update date/time. When a file name is selected, it is highlighted. When the dial  204  of the control panel  4  is rotated, a selective file can be successively varied. When the soft key L 2  corresponding to function “Name” at the second position of the menu  300  is pressed, the file name of the selected file can be changed. 
     In addition, a stamp picture of the selected file is displayed in the display area  303 . File information of the file is represented in the display area  304 . Corresponding to the operation of the dial  204 , a control command is supplied from the interface  114  to the sub CPU  108 . The control command is supplied from the sub CPU  108  to the main CPU  100  through the DPRAM  103 . The main CPU  100  reads a stamp picture corresponding to a material number of a selected file from the NAND flash memory  116 . The stamp picture that has been read from the NAND flash memory  116  is supplied to the DPRAM  103 . The stamp picture stored in the DPRAM  103  is written to an address of the LCD RAM  105  corresponding to the display area of the stamp picture by the sub CPU  108 . The data stored in the LCD RAM  105  is read by the LCD controller  104  and then displayed on the LCD  113  through the LCD I/F  112 . 
     In the example that a stamp picture corresponding to the file list display area  302  is displayed in the display area  303 , the display area  303  and the port information display information area  310  are clearly separated. 
     FIG. 14 shows an example of which a moving picture  306  is displayed as a monitor output DM instead of the stamp picture in the display area  303  (hereinafter, a stamp picture displayed in the display area  303  may be referred to as stamp picture  303 ). For example, a picture photographed by a video camera connected to the port  60 A selected by the port selection switch  22  is displayed as the moving picture  306  in the method for displaying a moving picture (2). In the example of which the moving picture  306  is displayed, unlike with the example of which the stamp picture  303  is displayed, assuming that the port information display area  310  is associated with the moving picture  306 , they are combined with a display area  307 . 
     In the examples shown in FIGS. 13 and 14, when the stamp picture  303  and the moving picture  306  are not required, the file list display area  302  may be enlarged, causing the stamp picture  303  and the moving picture  306  to disappear. This operation may be performed with the soft key F 7  (corresponding to function “Select Active”) of the menu  301 . 
     FIG. 15 shows an edit screen in the edit mode. In this example, the case that an IN point and an OUT point are designated will be described. In the states shown in FIG. 13 or  14 , when for example the edit switch  203  is pressed, a selected file can be edited. In the example shown in FIG. 15, an IN point picture display area  320  and an OUT point picture display area  321  are disposed. In this case, the menu  300  corresponding to the soft keys L 1  to L 11  and L 1  to F 7  shown in FIGS. 13 and 14 is changed to menus  300 ′ and  301 ′. With the menus  300 ′ and  301 ′, functions different from those in the material mode can be used. 
     In the example shown in FIG. 15, an IN point and an OUT point have been designated. However, when they have not been designated, a reproduced picture of a selected file is displayed as a moving picture in the IN point picture display area  320 . In this case, no picture is displayed in the OUT point picture display area  321 . While observing the moving picture in the display area  320 , the operator designates an IN point corresponding to the method for displaying still pictures and moving pictures (4) for an IN point and an OUT point in the editing operation. After the IN point has been designated, a moving picture captured for the IN point is read from the flash memory  116  and displayed in the display area  320 . 
     In addition, a reproduced picture is displayed as a moving picture in the display area  321 . In the same manner as the IN point, while observing the moving picture in the display area  321 , the operator designates an OUT point. Thus, a moving picture captured for the OUT point is displayed in the display area  321 . 
     The display area  322  displays information of the designated IN point and OUT point. The display area  323  displays predetermined edit information such as a page number. 
     In the example shown in FIG. 15, the case that only an IN point and an OUT point are designated was described. However, it should be noted that the present invention is not limited to such an example. In other words, all pictures that are output as a monitor output DM can be displayed on the displaying portion  200 . Thus, a picture edited by the special effect portion  39  can be displayed on the displaying screen  200 . 
     As described above, according to the present invention, the control panel for operating the data recoding and reproducing apparatus has displaying portions that display a monitor picture and operation states of the individual ports. Thus, without need to use an extra monitor, the operator can observe pictures that are being recorded and/or reproduced on the individual ports and edit and manage files stored on a record medium. 
     In addition, since the operator can monitor and edit files with the data recording and reproducing apparatus, the portability thereof is high. Thus, since the data recording and reproducing apparatus can be used in a limited space, it can be used outdoors or in a mobile broadcasting vehicle. 
     In addition, since the controller portion that controls the data recording and reproducing apparatus has displaying portions that display a monitor picture and so forth, it is not necessary for the operator to frequently turn his/her eyes. Thus, the operability of the data recording and reproducing apparatus improves. 
     In addition, according to the embodiment of the present invention, since all the displaying portion can be used for data display instead of a monitor picture and/or a stamp picture, the operability of the data recording and reproducing apparatus improves. 
     Although the present invention has been shown and described with respect to a best mode embodiment thereof, it should be understood by those skilled in the art that the foregoing and various other changes, omissions, and additions in the form and detail thereof may be made therein without departing from the spirit and scope of the present invention.