JP2001203973A - Recording and/or reproducing device and information processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability by a user by equipping a video camera with a function of performing retrieval while displaying a file reproduction picture. SOLUTION: When data recorded on a recording medium are displayed, a reproduction main picture and a subordinate picture for retrieval are displayed on one display panel at the same time. In the reproduction main picture, data to be reproduced and outputted are reproduced and displayed and in the subordinate picture for retrieval, some of the data recorded on the recording medium and related subordiante data are displayed as thumbnails. Then, operation for reproducing data displayed in a 2nd display area can be done.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a recording and / or reproducing apparatus capable of at least reproducing data recorded on a recording medium and an information processing method in such a recording and / or reproducing apparatus. The present invention relates to a configuration for designating and reproducing and outputting data recorded on a recording medium.

[0002]

2. Description of the Related Art For example, as a method for searching for a file of image data such as a moving image or a still image recorded on a recording medium, a so-called multiple thumbnail image is displayed as a table of contents (thumbnail display). It is done to be done. The thumbnail image is an image in which a representative screen such as a still image, which is representative for each file recorded on the recording medium, is displayed in one screen in a form smaller than usual.

FIG. 17A shows a thumbnail display example. In general, when thumbnail display is performed, one display screen P is divided into a plurality of divided display areas, for example, as shown in FIG. In this case, one screen is divided into nine divided display areas. Here, for the sake of convenience,
The number shown by is attached. Then, for these divided display areas, for example, thumbnail images SN, SN, SN,.
・ ・ It is assumed to be displayed by pasting.

By displaying thumbnails in this manner, for example, a user can visually grasp the contents of an image file recorded on the recording medium, and can quickly and easily find a desired file. It is possible to search accurately. For example, generally, a plurality of thumbnail images SN and S displayed as shown in FIG.
The user selects a thumbnail image corresponding to a desired file from among N, SN,... With a cursor or the like, and performs an operation such as a click. Then, for example, the image data of the file corresponding to the thumbnail image selected by the user is reproduced from the recording medium.
As shown in (b), the display screen P is displayed in a normal size.

[0005]

By the way, as described with reference to FIG. 17, for example, when a user interface for operating a search screen as a thumbnail display to reproduce and display a file is provided. While the file is being reproduced, the reproduced image is displayed using almost the entire display area of the display screen P. Therefore, during this time, file search using the display screen cannot be performed. Then, for example, if a user wants to search for another file while reproducing a certain file, for example, by temporarily terminating the reproduction of the file so far, for example, as shown in FIG. It is necessary to return to the thumbnail display screen shown in FIG. That is, in the related art, a file search screen cannot be displayed and a file search cannot be performed at the same time. Therefore, in consideration of user's convenience, a function that allows a user to search while displaying such a file play screen is used. Is preferably provided.

[0006]

In view of the above-mentioned problems, the present invention is firstly configured as a recording and / or reproducing apparatus as follows. That is, reading means for reading data recorded on the recording medium, display means, instruction information input means for inputting predetermined instruction information, and reading means for reading the first display area of the display means. The displayed first data is reproduced and displayed, and a part of the second data read by the reading means can be displayed on the second display area of the display means. When a part of the second data is displayed in the second display area and the instruction information for instructing the reproduction is input by the instruction information input means, a part of the second data is displayed in the second display area until now. And control means for controlling the display means so as to reproduce and display the second data displayed on the first area.

[0007] The recording and / or reproducing apparatus is also configured as follows. That is, a reading unit for reading data recorded on the recording medium, a display unit, an instruction information input unit for inputting predetermined instruction information, and a first display area of the display unit are provided on the recording medium. The first main data or the sub data related to the first main data is displayed, and the second main display area in the display means is displayed on the recording medium. Display control means capable of displaying sub-data related to the second main data, sub-data related to the second main data is displayed in a second display area, and
When instruction information for instructing reproduction is input in the instruction information input means, control is performed so that the second main data whose sub data has been displayed in the second display area is reproduced and output. And a reproduction control means for executing

The information processing method is configured as follows. That is, the readout procedure for reading data recorded on the recording medium, the instruction information input procedure for inputting predetermined instruction information, and the readout procedure for the first display area in the display area are performed by the above readout procedure. The first data can be reproduced and displayed, and a part of the second data read by the reading procedure can be displayed in the second display area in the display region, and the second display A part of the second data is displayed in the area, and
When instruction information for instructing reproduction is input according to the instruction information input procedure, the second data, a part of which has been displayed in the second display area, is reproduced in the first area. And a control procedure for controlling the display.

A reading procedure for reading data recorded on the recording medium, an instruction information inputting procedure for inputting predetermined instruction information, and recording on the recording medium with respect to a first display area in a display portion. The first that is said to be
Of the main data or the sub data related to the first main data, and the sub data related to the second main data recorded on the recording medium with respect to the second display area in the display area. And display instruction information for displaying the sub data related to the second main data in the second display area and instructing the reproduction by the instruction information input procedure. Is entered,
A reproduction control procedure for executing control so as to reproduce and output the second main data whose sub data has been displayed in the second display area until now is executed.

According to the above arrangements, when displaying data recorded on the recording medium, the display using the first display area and the display using the second display area on one display screen (display means, display portion) are performed. The display by the two display areas is simultaneously performed with the display area. In the first display area, reproduction display of data to be reproduced and output or display of sub-data that can indicate data being reproduced and output is performed.
In the second display area, for example, a part of data recorded on a recording medium or related sub-data is displayed. Then, an operation for reproducing data in which a part or related sub-data is displayed in the second display area is also enabled. This means that, at the same time as reproducing and displaying the data, information that allows the user to visually grasp the data recorded on the recording medium is displayed. Further, the reproducing operation is performed on the second display area. Means you can do it.

[0011]

Embodiments of the present invention will be described below. As a recording and / or reproducing apparatus according to the present embodiment, a portable video camera in which a camera unit and a recording and reproducing unit capable of recording and reproducing images (still images or moving images) and audio are integrated. Take the case where it is installed as an example. Further, the recording / reproducing device mounted on the video camera according to the present embodiment adopts a configuration for recording and reproducing data corresponding to a so-called mini disk, which is known as a kind of magneto-optical disk. The description will be made in the following order. 1. Disk format 2. 2. External configuration of video camera 3. Internal configuration of video camera 4. Configuration of media drive section 5. Example of disk structure corresponding to this embodiment 6. Thumbnail image generation processing Script 8. Operation screen display 9. File search function of present embodiment 9-1. First example 9-2. Second example

1. Disc Format The recording / reproducing device section mounted on the video camera of this example is assumed to be compatible with a format called MD data, which records / reproduces data in correspondence with a mini disc (magneto-optical disc). . As this MD data format, two types of formats called MD-DATA1 and MD-DATA2 have been developed, but the video camera of this example is capable of recording at higher density than MD-DATA1. It is assumed that recording and reproduction are performed in accordance with the format. So first, MD
-Disc format of DATA2 will be described.

FIGS. 1 and 2 conceptually show an example of a track structure of a disk as MD-DATA2. FIGS. 2A and 2B are a cross-sectional view and a plan view, respectively, showing an enlarged portion enclosed by a broken line A in FIG. As shown in these figures, two types of grooves (grooves) are previously formed on the disk surface: a wobbled groove WG provided with wobbles (meandering) and a non-wobbled groove NWG provided with no wobble. It is formed. The wobbled groove WG and the non-wobbled groove NWG
Exist in a double spiral on the disk so as to form a land Ld therebetween.

In the MD-DATA2 format, a land Ld is a recording track (a track on which data is recorded).
Since the wobbled groove WG and the non-wobbled groove NWG are formed as described above, the track Tr is also used as the recording track.
-The two tracks A, Tr and B are independent of each other,
It will be formed in a double spiral (double spiral) shape. The track Tr · A is a track in which the wobbled groove WG is located on the outer peripheral side of the disk and the non-wobbled groove NWG is located on the inner peripheral side of the disk.
On the other hand, the track Tr · B is a track in which the wobbled groove WG is located on the inner peripheral side of the disk and the non-wobbled groove NWG is located on the outer peripheral side of the disk.
In other words, it can be considered that wobbles are formed only on one side on the outer peripheral side of the disk for the track Tr.A, and wobbles are formed only on one side on the inner side of the disk for the track Tr.B. . In this case, the track pitch is a distance between the centers of the adjacent tracks Tr.A and Tr.B, and the track pitch is 0.95 μm as shown in FIG. 2B.

Here, the wobbles formed in the groove as the wobbled groove WG are formed based on a signal in which the physical address on the disk is encoded by FM modulation + biphase modulation. For this reason, it is possible to extract the physical address on the disk by demodulating the reproduction information obtained from the wobbling given to the wobbled groove WG at the time of recording / reproduction. Further, the address information as the wobbled groove WG is commonly effective for the tracks Tr · A and Tr · B. In other words, the track Tr · A located on the inner periphery of the wobbled groove WG and the track Tr · B located on the outer periphery share the address information by the wobbling given to the wobbled groove WG. . Such an addressing method is also called an interlace addressing method. By adopting this interlace addressing method, for example, it is possible to reduce the track pitch while suppressing crosstalk between adjacent wobbles. For a method of recording an address by forming a wobble in a groove, A
Also called DIP (Adress In Pregroove) method.

The identification of which one of the tracks Tr.A and Tr.B sharing the same address information is being traced can be performed as follows. For example, in a state where the main beam traces a track (land Ld) by applying a three-beam method, the remaining two side beams trace grooves located on both sides of the track traced by the main beam. It is possible to make it.

FIG. 2B shows, as a specific example, a state in which the main beam spot SPm traces the track Tr · A. In this case, of the two side beam spots SPs1 and SPs2, the inner side beam spot SPs1 traces the non-wobbled groove NWG and the outer side beam spot S
Ps2 traces the wobbled groove WG. On the other hand, although not shown, if the main beam spot SPm traces the tracks Tr and B, the side beam spot SPs1 traces the wobbled groove WG and the side beam spot SP
s2 traces the non-wobbled groove NWG. Thus, the main beam spot SPm
Tracing the track Tr · A and the track T
In the case of tracing r · B, the grooves to be traced by the side beam spots SPs1 and SPs2 are necessarily replaced by the wobbled groove WG and the non-wobbled groove NWG.

Side beam spots SPs1, SPs2
As a detection signal obtained by the photodetector due to the reflection of light, different waveforms are obtained depending on which of the wobbled groove WG and the non-wobbled groove NWG is being traced. By determining which of the side beam spots SPs1 and SPs2 traces the wobbled groove WG (or the non-wobbled groove NWG), the main beam is moved to the tracks Tr · A,
Which of Tr and B is being traced can be identified.

FIG. 3 shows the main specifications of the MD-DATA2 format having the track structure as described above.
It is a figure shown in comparison with D-DATA1 format.
First, in the MD-DATA1 format, the track pitch is 1.6 μm and the pit length is 0.59 μm / bi.
t. The laser wavelength λ is set to 780 nm, and the aperture ratio NA of the optical head is set to 0.45. As a recording method, a groove recording method is adopted. That is, the groove is used as a track for recording and reproduction. As a method of addressing, a method is used in which a groove (track) is formed by a single spiral, and a wobbled groove in which wobbles are formed as address information on both sides of the groove.

As a modulation method of recording data, EFM (8
-14 conversion). As an error correction method, ACIRC (Advanced Cross Interleave Reed-
Solomon Code) and a convolutional data interleave. Therefore, the data redundancy is 46.3%.

In the MD-DATA1 format, a CLV (Constant Linear V) is used as a disk drive system.
erocity) is adopted, and the linear velocity of CLV is
1.2 m / s. The standard data rate for recording and reproduction is 133 kB / s, and the recording capacity is 140 MB.

On the other hand, in the MD-DATA2 format which can be supported by the video camera of this embodiment, the track pitch is 0.95 μm and the pit length is 0.39 μm / b.
It can be seen that both are shorter than the MD-DATA1 format. For example, in order to realize the pit length, the laser wavelength λ = 650 nm and the aperture ratio NA of the optical head are set to 0.52, thereby narrowing the beam spot diameter at the in-focus position and expanding the band as an optical system. .

As described with reference to FIGS. 1 and 2, a land recording method is employed as a recording method, and an interlace addressing method is employed as an address method. As a modulation method of recording data, an RLL (1, 7) method (RLL;
Run Length Limited), the RS-PC method is used as an error correction method, and the block complete type is used as data interleaving. As a result of adopting each of the above methods, the data redundancy can be suppressed to 19.7%.

Also in the MD-DATA2 format, CLV is adopted as a disk drive system, but its linear velocity is 2.0 m / s, and the standard data rate for recording / reproducing is 589 kB / s. It is said. As a result, a recording capacity of 650 MB can be obtained. Compared with the MD-DATA1 format, this means that a high-density recording of almost four times is realized. For example, assuming that a moving image is to be recorded in the MD-DATA2 format, MPEG
In the case where the compression encoding by 2 is performed, it is possible to record a moving image of 15 minutes to 17 minutes in time, depending on the bit rate of the encoded data. Also, assuming that only audio signal data is recorded, the ATR
When a compression process using AC (Adaptive Transform Acoustic Coding) 2 is performed, recording can be performed for about 10 hours.

2. Next, an example of the appearance of the video camera of this embodiment will be described. FIGS. 6A, 6B, 7A, and 7B are a plan view, a side view, a front view, and a rear view of the video camera of the present example, respectively. As shown in these figures, a camera lens 201 provided with an imaging lens, an aperture, and the like for taking a picture is provided on a front portion of a main body 200 of the video camera according to the present embodiment. Further, a microphone 202 for picking up an external sound at the time of shooting is provided on the lower side of the rear part of the same main body 200. That is, in this video camera, it is possible to record an image captured by the camera lens 201 and record stereo sound collected by the microphone 202. Here, it is assumed that a speaker 205 for outputting a reproduced sound is provided at the same position as the microphone 202. The speaker 205 also outputs a required message sound such as a beep sound.

A viewfinder 204 is provided on the back side of the main body 200, and displays an image (also referred to as a through image) taken from the camera lens 201, a character image, and the like during a recording operation and a standby state. Is done. The user can use this viewfinder 204
You can shoot while watching Also, a main dial 300, a release key 301, and a delete key 3 which will be described later.
The portion provided with 02 is openable and closable as a battery cover 206, and by opening the battery cover 206, a battery (rechargeable battery) can be loaded and unloaded.

A movable panel 203 is provided on the side surface of the main body 200. By being supported by the movable support portion 208, it is movably attached to the main body 200. The movement of the movable panel section 203 will be described later.

A display panel 67 (display screen) is provided on the back side of the movable panel section 203. Therefore,
When the movable panel unit 203 is in the housed state as shown in FIG. 6B, the display panel 67 is in a state of being housed facing the main body.

The display panel 67 is a portion for displaying and outputting a photographed image, an image reproduced by an internal recording and reproducing device, and the like. In addition, a message display using characters, characters, or the like for notifying a user of a required message according to the operation of the device is performed. The display device actually used as the display panel 67 is not particularly limited here, but a liquid crystal display or the like may be used, for example. In addition, the display panel 67
For example, a touch panel is provided on the back side of the display surface of the liquid crystal display to detect a pressing operation and output the information as operation information. That is, in the present embodiment, an operation as a so-called GUI in which a pressing operation is performed on an image displayed on the display panel 67 can be performed. Here, the operation on the display panel 67 may be performed by a finger or the like because the position at which the pressing force is applied to the touch panel is detected as coordinate position information. However, taking into account that the display area of the display panel 67 is limited, and the pointing operation may be difficult with a finger,
As shown in FIG. 6B, a stick-shaped pen 320
Is attached. The user replaces this finger with this pen 3
20 can be used to perform a pointing (touch) operation on the display panel 67.

Further, a portion on the side of the main body 200 in which the movable panel portion 203 is stored is a disk loading / unloading portion 205. A disc can be inserted or ejected.

Although not shown here, a video output terminal for outputting a reproduced image signal or the like to an external video device or a reproduced audio signal to an external audio device or headphones is actually provided. Headphone / line terminals, etc. are provided. In addition, an I / F corresponding to an interface function for performing data transmission with an external data device is provided.
Terminals and the like are also provided.

Further, in each part of the main body 200, various controls for user operation are provided. Hereinafter, the main operators will be described. Main dial 300
Is provided on the back side of the main body 200 as shown in FIG.
An operation element for setting a reproduction operation. In this case, a rotation operation can be performed. Main dial 30
When 0 is at the power-off position PS2, the power is off. Then, for example, if the main dial 300 is rotated from this state to the reproduction / edit position PS1,
When the power is turned on, a mode is set in which playback of a recorded file and various editing operations are possible. If the camera mode position is PS2, a mode (camera mode) in which a recording file as a moving image or a still image can be recorded while the power is on is provided. Furthermore, if the camera mode position PS2 is set, the interview mode is set. The interview mode will not be described in detail here, but as a recording operation, recording is performed mainly by voice, and at any time, when a release key 301 or a photo key 304 described later is pressed and operated, at that time, In this mode, a captured image is recorded as a still image. In the reproduction in the interview mode, a recorded file recorded in the interview mode is reproduced. At this time, for example, the still image is switched and displayed at the timing of recording while reproducing the audio.

A release key 301 is provided at the center of the rotating part of the main dial 300. The release key 301 functions as an operator for starting / ending recording in the camera mode or the interview mode.

A jog dial 303 is also provided on the back of the main body 200. The jog dial 303 is a disc-shaped operation element, is mounted so as to be rotatable in forward / reverse directions, and has a click feeling at each predetermined rotation angle. Here, the rotation direction along the upper direction of the arrow mark 303a shown in FIG. 7B is the forward direction, and the rotation direction along the lower direction is the reverse direction. In this case, the jog dial 311 is used.
In FIG. 7B, a pressing operation can be performed in the left direction indicated by the arrow mark 303b in FIG. The jog dial 303 is actually combined with, for example, a two-phase rotary encoder, for example,
For example, one click becomes one rotation step,
Information on the number of rotation steps corresponding to the rotation direction and rotation angle is output.

The delete key 302 functions as a decision key for deleting data reproduced in a predetermined mode.

As shown mainly in FIG. 6A, a photo key 304, a zoom key 305, a focus key 306, and a backlight correction key 307 are provided on the side of the main body 200 in a slightly upward state. The photo key 304 is an operator that functions as a shutter for recording a recorded file of a still image by pressing the photo key 304 in a camera mode, for example.

A zoom key 305 is an operator for operating a zoom state (tele side to wide side) in the lens optical system (camera lens 201). Focus key 306
Indicates the focus state of the lens optical system (for example, normal /
Control to switch between infinity, etc.). A backlight correction key 307 is an operator for turning on / off a backlight correction function.

As shown in FIG. 6B, on the side surface of the main body 200 on the side where the movable panel section 203 is arranged, a reproduction / pause key 308 is provided as a key mainly for recording and reproduction of a file (track). Stop key 30
9, slow playback key 310, search keys 311 and 31
2. A recording key 313 is provided. As shown in FIG. 6A, a screen display key 314 for displaying a screen and volume keys 315 and 316 for adjusting the volume of audio output from a speaker are provided on the upper surface of the main body 200. .

The appearance of the video camera shown in FIGS. 6 and 7 is merely an example, and may be changed as appropriate in accordance with the actual use conditions required for the video camera of this embodiment. . Of course, various types of operation elements, operation methods, and connection terminals with external devices can be considered.

The manner of movement of the movable panel section 203 described above will be described with reference to FIG. In FIG. 8, the appearance of the video camera is simplified for convenience of explanation. As the movement of the movable panel 203,
First, the position state can be changed from the position state shown in FIG. 6B along the direction of the arrow YJ1 as shown in FIG. 8A. In this case, the display screen (display panel 67) faces the photographer (viewfinder 204), and faces in a direction substantially opposite to the camera lens 201 that captures the captured image. In this position state of the display panel, for example, a photographer having a video camera can shoot (record) while monitoring the captured image displayed on the display panel 67.

Further, the movable panel 203 can be rotated from the state shown in FIG. 8A in the range of about 180 ° along the direction of the arrow YJ2. That is, as shown in FIG. 8B, the display panel 67 can be set to a position in which the display panel 67 faces the subject (camera lens). In this state, the user on the subject side can see the captured image. When a disk is inserted into or removed from the disk loading / unloading section 205, FIG.
As shown in (b), the operation is performed with the movable panel 203 raised from the main body 200.

The arrow YJ from the state shown in FIG.
The movable panel 203 can also be moved in the direction 3.
By doing so, although not shown, the movable panel 203 is in the storage position with the display panel 67 visible from the outside.

When the display panel is rotated in the direction of arrow YJ2 as described above, when the display panel 67 faces the photographer side and when the display panel 67 faces the subject side,
Although the appearance of the display image is inverted up and down and left and right as it is, in the present embodiment, the display image on the display panel 67 is always displayed by the user (the photographer and the subject) according to the rotation state of the movable panel unit 203. The above inconvenience is solved by performing the reverse display control so that the image can be viewed in an appropriate direction from the above (2).

3. FIG. 4 is a block diagram showing an example of the internal configuration of the video camera of the present embodiment. The lens block 1 shown in FIG. 1 includes, for example, an optical system 11 actually including an imaging lens and a diaphragm. The camera lens 201 shown in FIG. 6 is included in the optical system 11. The lens block 1 includes a focus motor for causing the optical system 11 to perform an autofocus operation, a zoom motor for moving a zoom lens based on the operation of the zoom key 304, and the like.
Provided as

The camera block 2 is provided with a circuit section for mainly converting image light photographed by the lens block 1 into a digital image signal. For the CCD (Charge Coupled Device) 21 of the camera block 2,
An optical image of the subject transmitted through the optical system 11 is provided. C
In the CD 21, an image pickup signal is generated by performing photoelectric conversion on the optical image, and the sample hold / AGC (A
utomatic Gain Control) circuit 22. The sample hold / AGC circuit 22 adjusts the gain of the imaging signal output from the CCD 21 and performs waveform shaping by performing sample hold processing. The output of the sample hold / AGC circuit 2 is a video A / D
By being supplied to the converter 23, it is converted into digital image signal data.

The above-mentioned CCD 21, sample hold / AG
Signal processing timing in the C circuit 22 and the video A / D converter 23 is controlled by a timing signal generated by a timing generator 24. The timing generator 24 receives a clock used for signal processing in a data processing / system control circuit 31 (in the video signal processing circuit 3) described later and generates a required timing signal based on the clock. Is done. Thereby, the signal processing timing in the camera block 2 is synchronized with the processing timing in the video signal processing unit 3. Camera controller 2
Reference numeral 5 is for performing necessary control so that each of the functional circuit units provided in the camera block 2 operates properly, and for performing autofocus, automatic exposure adjustment, aperture adjustment, zooming, and the like on the lens block 1. Is controlled. For example, in the case of auto-focus control, the camera controller 25 performs, based on focus control information obtained according to a predetermined auto-focus control method,
Controls the rotation angle of the focus motor. As a result, the imaging lens is driven to be in the just-focused state.

At the time of recording, the video signal processing unit 3 performs a compression process on the digital image signal supplied from the camera block 2 and the digital audio signal obtained by collecting sound by the microphone 202, and compresses the compressed data. The data is supplied to the subsequent media drive unit 4 as user recording data. Further, an image generated from the digital image signal and the character image supplied from the camera block 2 is supplied to the viewfinder drive unit 207 and displayed on the viewfinder 204. Further, at the time of reproduction, demodulation processing is performed on user reproduction data (data read from the disk 51) supplied from the media drive unit 4, that is, image signal data and audio signal data that have been subjected to compression processing, and these are reproduced. , And output as a reproduced audio signal.

In this example, as a compression / expansion processing method for image signal data (image data), MPEG (Moving Picture Experts Group) 2 is adopted for moving images, and JPEG (Joint Photographic) is applied for still images.
Coding Experts Group). Also, the audio signal data compression / expansion processing method includes ATR
AC (Adaptive Transform Acoustic Coding) 2 shall be adopted.

The data processing / system control circuit 31 of the video signal processing section 3 mainly performs control processing relating to compression / expansion processing of image signal data and audio signal data in the video signal processing section 3 and video signal processing section 3. Executes the process for controlling the input and output of the data passing through. The data processing / system control circuit 31
The control processing for the entire video signal processing unit 3 including
The video controller 38 is made to execute. The video controller 38 includes, for example, a microcomputer, and can communicate with the camera controller 25 of the camera block 2 and a driver controller 46 of the media drive unit 4 described later via, for example, a bus line (not shown). Have been. That is, the video controller 38 functions as a master controller that controls the entire system.

The video controller 38 is provided with a program memory 39. The program memory 39 is configured by a rewritable storage element such as an EEPROM or a flash memory, and stores information such as various programs to be executed by the video controller 38 as a master controller and various setting data. Is done.

As a basic operation at the time of recording in the video signal processing unit 3, image data supplied from the video A / D converter 23 of the camera block 2 is input to the data processing / system control circuit 31. The data processing / system control circuit 31 supplies the input image signal data to, for example, the motion detection circuit 35. The motion detection circuit 35 performs image processing such as motion compensation on the input image signal data while using the memory 36 as a work area, and supplies the processed image signal data to the MPEG2 video signal processing circuit 33.

The MPEG2 video signal processing circuit 33 performs compression processing on the input image signal data in accordance with the MPEG2 format while using, for example, the memory 34 as a work area, and generates a bit stream (MPEG2) of compressed data as a moving image. Bit stream). In the MPEG2 video signal processing circuit 33, for example, when extracting image data as a still image from image signal data as a moving image and performing compression processing on the extracted image data, the compressed image data as a still image in accordance with the JPEG format is used. Is configured to generate It should be noted that JPEG was not adopted and MPEG
As compressed image data in the second format, an I picture (Intra Picture), which is regular image data, may be treated as still image data. MPEG
The image signal data (compressed image data) compression-encoded by the two video signal processing circuit 33 is written into the buffer memory 32 at a predetermined transfer rate and temporarily stored. In the MPEG2 format, as is well known, a so-called encoding bit rate (data rate) is used as a constant bit rate (CBR).
ate) and a variable bit rate (VBR), and the video signal processing unit 3 can cope with these.

For example, when performing image compression processing using VBR, for example, the motion detection circuit 35 performs motion detection in the range of several tens to several hundreds of frames before and after in macroblock units to determine that there is motion. If this is done, the detection result is transmitted to the MPEG2 video signal processing circuit 33 as motion vector information. In the MPEG2 video signal processing circuit 33, the quantization coefficient for each macroblock is calculated by using the required information such as the motion vector information so that the image data after the compression and encoding has a certain required data rate. It will be decided.

The audio compression encoder / decoder 37 includes:
A / D converter 64 (display / image / audio input / output unit 6)
For example, the sound collected by the microphone 202 is input as digital sound signal data. The audio compression encoder / decoder 37 performs compression processing on the input audio signal data in accordance with the ATRAC2 format as described above. This compressed audio signal data is also written into the buffer memory 32 by the data processing / system control circuit 31 at a predetermined transfer rate, and is temporarily stored here.

As described above, the compressed image data and the compressed audio signal data can be stored in the buffer memory 32. The buffer memory 32 mainly absorbs the speed difference between the data transfer rate between the camera block 2 or the display / image / audio input / output unit 6 and the buffer memory 32 and the data transfer rate between the buffer memory 32 and the media drive unit 4. Has a function for Buffer memory 3
The compressed image data and the compressed audio signal data stored in 2 are read out sequentially at a predetermined timing during recording, and are transmitted to the MD-DATA2 encoder / decoder 41 of the media drive unit 4. However, for example, during the reproduction, the reading of the data stored in the buffer memory 32 and the operation of recording the read data from the media drive unit 4 to the disk 51 via the deck unit 5 are performed intermittently. No problem. The control of writing and reading data to and from the buffer memory 32 is executed by, for example, the data processing / system control circuit 31.

The operation at the time of reproduction in the video signal processing section 3 is roughly as follows. At the time of reproduction, compressed image data and compressed audio signal data (user reproduction data) read from the disk 51 and decoded according to the MD-DATA2 format by the processing of the MD-DATA2 encoder / decoder 41 (in the media drive unit 4) Data processing / system control circuit 31
Is transmitted to The data processing / system control circuit 31 temporarily stores the input compressed image data and compressed audio signal data in the buffer memory 32, for example. Then, the compressed image data and the compressed audio signal data are read from the buffer memory 32 at a required timing and at a transfer rate at which the reproduction time axis can be matched.
The compressed audio signal data is supplied to the video signal processing circuit 33, and the compressed audio signal data is supplied to the audio compression encoder / decoder 37.

In the MPEG2 video signal processing circuit 33,
Decompresses the input compressed image data,
It is transmitted to the data processing / system control circuit 31. In the data processing / system control circuit 31,
The decompressed image signal data is supplied to the video D / A converter 61 (in the display / image / audio input / output unit 6). The audio compression encoder / decoder 37 performs an expansion process on the input compressed audio signal data,
/ A converter 65 (in display / image / audio input / output unit 6)
To supply.

In the display / image / audio input / output unit 6,
The image signal data input to the video D / A converter 61 is converted into an analog image signal here, and is branched and input to the display controller 62 and the composite signal processing circuit 63. The display controller 62 drives the display unit 6A based on the input image signal. As a result, a reproduced image is displayed on the display unit 6A. Further, in the display unit 6A, not only an image obtained by reproducing from the disk 51 but also a captured image obtained by photographing with a camera part composed of the lens block 1 and the camera block 2 as a matter of course. It is possible to display and output almost in real time. In addition to the reproduced image and the captured image, as described above, a message display using characters, characters, or the like for notifying the user of a required message in accordance with the operation of the device is also performed. Such a message display should be output from the data processing / system control circuit 31 to the video D / A converter 61 so that required characters, characters, and the like are displayed at predetermined positions under the control of the video controller 38, for example. Processing for synthesizing image signal data such as required characters and characters may be performed on the image signal data.

A display panel 67 is formed by combining the touch panel 6B with the display section 6A. The touch panel 6B detects the position information of the pressing operation performed on the display unit 6A, and outputs this to the video controller 38 as operation information.

The composite signal processing circuit 63 converts the analog image signal supplied from the video D / A converter 61 into a composite signal and outputs the composite signal to the video output terminal T1. For example, if a connection is made to an external monitor device or the like via the video output terminal T1, an image reproduced by the video camera can be displayed on the external monitor device.

In the display / image / sound input / output unit 6, the sound signal data input from the sound compression encoder / decoder 37 to the D / A converter 65 is converted into an analog sound signal here, and the signal is supplied to a headphone / line terminal. T
2 is output. Further, the analog audio signal output from the D / A converter 65 is also branched and output to the speaker 205 via the amplifier 66, whereby the reproduced audio and the like are output from the speaker 205. Become.

At the time of recording, the media drive section 4 mainly encodes the recording data in accordance with the MD-DATA2 format so as to conform to the disc recording and transmits the encoded data to the deck section 5. By performing decoding processing on the read data, reproduction data is obtained and transmitted to the video signal processing unit 3.

The MD-DAT of the media drive unit 4
When recording, the A2 encoder / decoder 41
Recording data (compressed image data + compressed audio signal data) is input from the data processing / system control circuit 31, the recording data is subjected to a predetermined encoding process in accordance with the MD-DATA2 format, and the encoded data is temporarily stored. The data is stored in the buffer memory 42. Then, the data is transmitted to the deck unit 5 while being read at a required timing.

At the time of reproduction, the digital reproduction signal read from the disk 51 and input through the RF signal processing circuit 44 and the binarization circuit 43 is subjected to MD-DAT.
A decoding process according to the A2 format is performed, and the data is transmitted to the data processing / system control circuit 31 of the video signal processing unit 3 as reproduction data. Also at this time, if necessary, the reproduced data is temporarily stored in the buffer memory 42, and the data read therefrom at a required timing is transmitted to the data processing / system control circuit 31 for output. Such write / read control for the buffer memory 42 is performed by the driver controller 46. For example, even when the servo or the like is deviated due to disturbance or the like at the time of reproduction of the disk 51 and reading of a signal from the disk becomes impossible, the read data is not stored in the buffer memory 42 during the period. If the reproduction operation for the disc is resumed, the chronological continuity as the reproduction data can be maintained.

The RF signal processing circuit 44 includes a disk 51
By performing the required processing on the read signal from
For example, a servo control signal such as an RF signal as reproduction data, a focus error signal for servo control of the deck unit 5, and a tracking error signal is generated. RF
The signal is binarized by the binarization circuit 43 as described above, and input to the MD-DATA2 encoder / decoder 41 as digital signal data. The generated various servo control signals are supplied to the servo circuit 45. In the servo circuit 45, based on the input servo control signal,
The required servo control in the deck section 5 is executed.

In this example, MD-DATA1
An encoder / decoder 47 corresponding to the format is provided. The encoder / decoder 47 encodes the recording data supplied from the video signal processing unit 3 in accordance with the MD-DATA1 format and records the encoded data on the disk 51. It is also possible to perform decoding processing on data encoded in accordance with the MD-DATA1 format, and transmit and output it to the video signal processing unit 3. That is, as the video camera of this example, the MD-DATA2 format and the MD-DATA2 format are used.
It is configured to obtain compatibility with the DATA1 format. The driver controller 46 is a functional circuit unit for controlling the media drive unit 4 as a whole.

The deck section 5 is a part comprising a mechanism for driving the disk 51. Although not shown here, in the deck section 5, the disk 5 to be loaded is
1 is detachable, and has a mechanism (disk slot 203 (see FIG. 6)) that can be replaced by a user's work. Further, it is assumed that the disk 51 here is a magneto-optical disk corresponding to the MD-DATA2 format or the MD-DATA1 format.

In the deck section 5, a spindle motor 5 for rotating the loaded disk 51 by CLV is used.
2 is driven to rotate by the CLV. The optical head 53 irradiates the disk 51 with laser light during recording / reproduction. The optical head 53 performs high-level laser output for heating the recording track to the Curie temperature during recording, and performs relatively low-level laser output for detecting data from reflected light by the magnetic Kerr effect during reproduction. . Therefore, the optical head 53
Although not shown in detail here, a laser diode as a laser output unit, an optical system including a polarizing beam splitter and an objective lens, and a detector for detecting reflected light are mounted. The objective lens provided in the optical head 53 is held, for example, by a biaxial mechanism so as to be displaceable in the radial direction of the disk and in the direction in which the disk comes into contact with and separates from the disk.

The optical head 5 with the disk 51 interposed
A magnetic head 54 is arranged at a position facing 3. The magnetic head 54 performs an operation of applying a magnetic field modulated by recording data to the disk 51. Although not shown, the thread motor 55
And a thread mechanism driven by the thread mechanism. By driving the sled mechanism, the entire optical head 53 and the magnetic head 54 can be moved in the disk radial direction.

The operation unit 7 corresponds to the various operators shown in FIG. 6, and various operation information of the user by these operators is output to, for example, the video controller 38. The video controller 38 controls the camera controller 25 and the driver controller 46 with control information for causing each unit to execute necessary operations corresponding to the operation information output from the touch panel 6B and the operation unit 7 described above. To supply.

The external interface 8 is provided so that data can be transmitted between the video camera and the external device. For example, as shown in FIG. Can be

In the case of the present embodiment, it is assumed that the external interface 8 is an Ethernet widely used for a LAN (Local Area Network).
As is well known, Ethernet has a single transmission path, has a simple structure and is inexpensive, and is suitable for constructing a LAN or the like. The external interface 8 is Ethe
rnet, the communication protocol is I
It is assumed that P (Internet Protocol) is adopted. The I / F terminal T3 has a terminal shape corresponding to a connector of a cable corresponding to Ethernet.

For example, the video camera of this embodiment is
When connected to an Ethernet transmission path via the F terminal T3, communication with a personal computer device or other digital image equipment connected to the transmission path is performed, and
Transmission and reception of audio data and the like can be performed. Also,
Depending on the configuration, it is also possible to remotely control the video camera of the present embodiment from a device connected via Ethernet.

Although detailed description is omitted here,
For personal computer devices, Ethernet
In the case of transmitting and outputting, for example, thumbnail image data for displaying a thumbnail via the transmission line t, in the present embodiment, it is possible to output a thumbnail display image created as an HTML-format Web file. ing. For this purpose, for example, a set (program) for generating data as a Web file in the HTML format is also stored in the program memory 39.

In the video camera according to the present embodiment, an interface for exchanging data with the outside is, for example, an IEEE 1
A 394 interface or the like may be added as needed. In other words, as the external interface 8 shown in this figure, a plurality of interface units having different standards may be provided according to the number of interface functions actually provided.

The power supply block 9 supplies a required level of power supply voltage to each functional circuit unit using a DC power supply obtained from a built-in battery or a DC power supply generated from a commercial AC power supply. The power supply on / off by the power supply block 9 is controlled by the video controller 38 according to the operation of the main dial 300 described above. During the recording operation, the video controller 38 causes the indicator 206 to emit light.

4. Configuration of Media Drive Unit Next, as the configuration of the media drive unit 4 shown in FIG. 4, a detailed configuration in which a functional circuit unit corresponding to MD-DATA2 is extracted will be described with reference to the block diagram of FIG. Although FIG. 5 shows the deck unit 5 together with the media drive unit 4, the internal configuration of the deck unit 5 has been described with reference to FIG. I do. In the media drive unit 4 shown in FIG. 5, the same reference numerals are given to the ranges corresponding to the blocks in FIG.

Information detected by data reading operation of the optical head 53 from the disk 51 (photocurrent obtained by detecting laser reflected light by a photodetector)
Is supplied to the RF amplifier 101 in the RF signal processing circuit 44. The RF amplifier 101 generates a reproduction RF signal as a reproduction signal from the input detection information and supplies the reproduction RF signal to the binarization circuit 43. The binarization circuit 43 binarizes the input reproduction RF signal to obtain a digital reproduction RF signal (binary RF signal). This binarized RF signal is supplied to the MD-DATA2 encoder / decoder 41, and first, the AGC / clamp circuit 103
, And then input to the equalizer / PLL circuit 104. The equalizer / PLL circuit 104 performs equalizing processing on the input binary RF signal, and
5 is output. In addition, binarization R after equalizing processing
By inputting the F signal to the PLL circuit, the binarized RF
Clock C synchronized with signal (RLL (1,7) code string)
Extract LK.

The frequency of the clock CLK corresponds to the current disk rotation speed. Therefore, the CLV processor 11
1, the clock C is output from the equalizer / PLL circuit 104.
LK is input, error information is obtained by comparing with a reference value corresponding to a predetermined CLV speed (see FIG. 3), and this error information is used as a signal component for generating a spindle error signal SPE. In addition, the clock CLK includes, for example, the RLL (1, 7) demodulation circuit 106 and the like.
It is used as a clock for processing in a required signal processing circuit system.

The Viterbi decoder 105 has an equalizer / P
The binary RF signal input from the LL circuit 104 is subjected to a decoding process according to a so-called Viterbi decoding method. As a result, reproduced data as an RLL (1, 7) code string is obtained. This reproduced data is RLL (1,
7) The signal is input to the demodulation circuit 106, where RLL (1,
7) The data stream is subjected to demodulation.

The data stream obtained by the demodulation processing in the RLL (1, 7) demodulation circuit 106 is written to the buffer memory 42 via the data bus 114 and developed on the buffer memory 42. The data stream expanded on the buffer memory 42 in this manner is first subjected to error correction processing in error correction block units according to the RS-PC system by the ECC processing circuit 116, and further descramble / E
The DC decoding circuit 117 performs a descrambling process and an EDC decoding process (error detection process). The data processed so far is the reproduction data DA
TAp. The reproduction data DATAp is transmitted at a transfer rate according to the transfer clock generated by the transfer clock generation circuit 121, for example, from the descrambling / EDC decoding circuit 117 to the data processing / processing of the video signal processing unit 3.
The data is transmitted to the system control circuit 31.

The transfer clock generation circuit 121 includes, for example,
When a crystal clock is used for data transmission between the media drive unit 4 and the video signal processing unit 3 and data transmission between functional circuit units in the media drive unit 4,
This is a portion for generating a transfer clock (data transfer rate) having a frequency appropriately determined. Further, it generates a clock of a required frequency to be supplied to each functional circuit unit of the media drive unit 4 and the video signal processing unit 3 according to the operation state of the video camera.

The detection information (photocurrent) read from the disk 51 by the optical head 53 is transmitted to the matrix amplifier 1
07 is also supplied. The matrix amplifier 107 performs required arithmetic processing on the input detection information, thereby obtaining a tracking error signal TE, a focus error signal FE, and groove information (absolute address information recorded as a wobbled groove WG on the disk 51) GFM. Are supplied to the servo circuit 45. That is, the extracted tracking error signal TE and focus error signal FE are supplied to the servo processor 112, and the groove information GFM is stored in the ADIP bandpass filter 108.
Supplied to

The groove information GFM band-limited by the ADIP band-pass filter 108 is supplied to an A / B track detection circuit 109, an ADIP decoder 110, and a CLV.
It is supplied to the processor 111. In the A / B track detecting circuit 109, based on the input groove information GFM, for example, the track currently being traced is determined by the method described in FIG.
A, TR or B is determined, and the track determination information is transmitted to the driver controller 46.
Output to The ADIP decoder 110 decodes the input groove information GFM to extract an ADIP signal, which is absolute address information on the disk, and outputs the signal to the driver controller 46. The driver controller 46 executes necessary control processing based on the track discrimination information and the ADIP signal.

The CLV processor 111 receives the clock CLK from the equalizer / PLL circuit 104 and the groove information GFM via the ADIP band pass filter 108. The CLV processor 111 generates a spindle error signal SPE for CLV servo control based on, for example, an error signal obtained by integrating a phase error between the groove information GFM and the clock CLK, and outputs the spindle error signal SPE to the servo processor 112. The required operation to be executed by the CLV processor 111 is controlled by the driver controller 46.

The servo processor 112 receives various servo control signals based on the tracking error signal TE, focus error signal FE, spindle error signal SPE, track jump command and access command from the driver controller 46 input as described above. (Tracking control signal, focus control signal, thread control signal, spindle control signal, etc.) are generated and output to the servo driver 113. In the servo driver 113,
A required servo drive signal is generated based on the servo control signal supplied from the servo processor 112. Here, the servo drive signal includes a two-axis drive signal (two types of focus direction and tracking direction) for driving the two-axis mechanism, a sled motor drive signal for driving the sled mechanism, and a spindle motor drive signal for driving the spindle motor 52. Becomes By supplying such a servo drive signal to the deck section 5, focus control and tracking control on the disk 51 and CLV control on the spindle motor 52 are performed.

When a recording operation is performed on the disk 51, for example, the data processing /
Scramble / ED from system control circuit 31
The recording data DATAR for the C encoding circuit 115
Will be input. This user record data DAT
Ar is input in synchronization with a transfer clock (data transfer rate) generated by the transfer clock generation circuit 121, for example.

Scramble / EDC encoding circuit 11
In step 5, for example, the recording data DATAR is written into the buffer memory 42 and expanded, and the data scramble processing is performed.
DC encoding processing (addition processing of an error detection code by a predetermined method) is performed. After this processing, for example, the ECC processing circuit 116 adds an error correction code according to the RS-PC method to the recording data DATAR developed in the buffer memory 42. The recording data DATAR that has been processed up to this point is read from the buffer memory 42 and transmitted to the RL via the data bus 114.
The signal is supplied to the L (1, 7) modulation circuit 118.

In the RLL (1, 7) modulation circuit 118, RLL (1, 7) is applied to the input recording data DATAR.
7) A modulation process is performed, and the recording data as the RLL (1, 7) code string is output to the magnetic head drive circuit 119.

Incidentally, the MD-DATA2 format employs a so-called laser strobe magnetic field modulation system as a recording system for a disk. The laser strobe magnetic field modulation method refers to a recording method in which a magnetic field modulated by recording data is applied to a recording surface of a disk, and a laser beam to be irradiated on the disk is pulsed in synchronization with the recording data. In such a laser strobe magnetic field modulation method, the process of forming a pit edge recorded on a disk does not depend on transient characteristics such as the reversal speed of a magnetic field, but is determined by the laser pulse irradiation timing. For this reason, the laser strobe magnetic field modulation method is compared with, for example, a simple magnetic field modulation method (a method in which a laser beam is constantly irradiated onto a disk and a magnetic field modulated by recording data is applied to a disk recording surface). In this case, the jitter of the recording pit can be extremely reduced. That is, the laser strobe magnetic field modulation method is a recording method advantageous for high-density recording.

The magnetic head drive circuit 119 of the media drive unit 4 operates so that a magnetic field modulated by the input recording data is applied from the magnetic head 54 to the disk 51. Further, the RLL (1, 7) modulation circuit 118 outputs a clock synchronized with the recording data to the laser driver 120. The laser driver 120 controls the optical head 5 so that the disk is irradiated with a laser pulse synchronized with recording data generated as a magnetic field by the magnetic head 54 based on the input clock.
The third laser diode is driven. At this time, the laser pulse emitted and output from the laser diode is based on a required laser power suitable for recording. In this way, the recording operation as the laser strobe magnetic field modulation method is enabled by the media drive unit 4 of the present embodiment.

[0092] 5. Next, an example of a data structure of the disk 51 according to the present embodiment will be described. First, as a premise, MD-DAT
A data unit called a sector or a cluster in the format of A2 will be described. A sector is a minimum unit for physically reading data from a disk, and a PSA (Physical Sector Address) is assigned to each sector. The cluster is a minimum unit of physical data writing to the disk, and is formed by a set of 16 consecutive sectors having a PSA of 0h to Fh. Each cluster is assigned a PCA (Physical Cluster Address). A sector in a lead-in area (pre-mastered area) described later can be uniquely specified by the PCA. Further, as for the clusters in the recordable area, the clusters having the same PCA exist for each of the tracks Tr.A and Tr.B.

FIG. 9 conceptually shows an example of a data management mode of the disk 51 according to the present embodiment. Note that the physical format of the disk 51 shown in this figure is as described above with reference to FIGS. In the disk 51, for example, PTOC and RTOC are set as management information. PTOC is
Required management information is recorded in a pit form. This P
The contents of the TOC cannot be rewritten. RTOC
For example, basic information necessary for managing data recorded on a disc is recorded. For example, in the case of this example, as data recorded on the disk, tracks (sometimes synonymous with files) and folders (structures for managing tracks by grouping them) are used for recording and reproducing. Information is stored. Note that RT
The contents of the OC are sequentially rewritten in accordance with, for example, the results of data recording on the disk and the results of editing processing such as deletion of tracks (files) and folders.

The user data is managed as a volume folder (Volume Folder) placed in one root folder. In the present embodiment, a volume
Is defined as a complete set of user data, and is defined as having only one volume on one disk. The data contained in this volume is stored as folders and tracks under the volume folder except for those managed by the PTOC and RTOC.

In the volume folder, a volume index track (VIT: Volume Index Track) of a predetermined size (for example, 12 clusters) is placed. This volume index track is, for example,
If the OC and RTOC are the main management information, they are defined as areas in which the sub-management information is recorded.
Data) has a table in which information for managing properties, titles, and packet data forming a track is recorded.

Also, as a track managed in the volume folder, a thumbnail track (Thumbnail Pictu
re Track) can be placed as an option.
In the present embodiment, one still image with a predetermined resolution can be included as a thumbnail image in association with each file recorded on the disk. The thumbnail image is treated as a representative image for making the file visually recognizable. The thumbnail track is recorded together with index information indicating a correspondence with a file (track) recorded on the disc and a storage position of the thumbnail image. The data length of the thumbnail track can be arbitrarily expanded according to the number of stored thumbnail images and the like.

For example, image / audio data recorded by the user by photographing or the like is managed on a file basis, and is placed in the volume folder as a track under the volume folder or in a folder placed below the volume folder. Will be placed. FIG. 9 shows a state in which a certain file is represented as one track and this track is stored in a certain folder. As described above, a folder has a structure for managing tracks or folders in one group. Therefore, in the structure below the volume folder, an arbitrary number of tracks or folders is stored within the range defined by the maximum number of records that can be stored in the volume folder and the maximum number of levels in the folder hierarchical structure.

An auxiliary data track in which auxiliary data (Auxiliary Data) is stored in the volume folder.
(Auxiliary Data Track) is placed. The information to be stored in the auxiliary data track is arbitrary depending on, for example, an application to be actually applied. In the present embodiment, script information as playback control information is stored. Although detailed description is omitted here, the image data (Imag
e) is also stored.

By the way, the PTO, which is the management information described above,
The information stored in the C, RTOC, or even the volume index track (these information is collectively referred to as “management information” in the present embodiment) is read, for example, when a disc is loaded. For example,
The data is held in a predetermined area of the buffer memory 42 (or the buffer memory 32) of the media drive unit 4. Then, at the time of data recording or editing, the management information stored in the buffer memory is rewritten according to the recording result or the editing result, and then, at a predetermined opportunity and timing, the management information is rewritten to the buffer memory. The management information of the disk 51 is rewritten (updated) based on the content of the held management information (however, P
No update is performed for the TOC).

FIG. 10 shows the data management form shown in FIG. 9 in association with the physical structure of the disk 51. The lead-in area shown in this figure is a pit area on the innermost circumference of the disc, in which PTOC information is recorded.

A recordable area is formed around the outer periphery of the lead-in area via a transition area. This recordable area is a magneto-optical recording area where magneto-optical recording and reproduction can be performed. In the recordable area, as described above with reference to FIGS. 1 and 2, two tracks of the tracks Tr.A and Tr.B are formed on a double spiral.

At the innermost circumference of the recordable area,
An RTOC area is provided for each of the tracks Tr.A and Tr.B. Then, in the RTOC area of the track Tr · A, information of the RTOC having a size of four clusters is repeatedly recorded three times. And following this, 12
A cluster size volume index track is arranged. Following the volume index track, a thumbnail track can be arranged as an option. It is defined that at least the first cluster is located as a thumbnail track in the RTOC area. Then, for example, when the number of thumbnail image data increases as the number of files increases and exceeds the capacity of the thumbnail track in the RTOC area, additional recording can be performed in a recordable data area described later. . At this time, the thumbnail track on the recordable data area is managed by a volume index track (or RTOC).

Following the thumbnail track in the RTOC area, an area for recording script and image data as auxiliary data can be set as an option. Further, when the script and image data exceed the recordable capacity in the RTOC area, they are additionally recorded in the recordable data area in a form managed by the volume index track (or RTOC). You can go.

A recordable data area is provided from the address position indicated by the recordable data area start address W. AV data, that is, track (file) data, is recorded in the recordable data area. The thumbnail image data and auxiliary data described above can also be recorded.

When the recordable data area ends, a lead-out area is formed from the address position indicated by the lead-out area start address L to the outermost periphery.

The above description relates to the track Tr.A. However, as can be seen from FIG. 10, the area setting for the track Tr.B is similar to that of the track Tr.
However, the RTOC area is undefined at this stage. That is, the RTOC area includes the track Tr
Only A is used substantially.

The example of the disk structure shown in FIGS. 9 and 10 is merely an example, and the physical positional relationship of each area on the disk may be changed according to the actual use conditions and the like. The structure in which the data is stored may be changed.

6. Thumbnail Image Generation Processing The thumbnail images stored in the thumbnail tracks shown in FIG. 9 and FIG. 10 can be generated by the video camera of the present embodiment. Let me explain. Here, a case will be described in which a thumbnail image is generated for an image file already recorded on a disc.

As described above, the management information (PTOC, RTOC, volume index track) recorded on the disk 51, for example, is read out at a predetermined timing such as when the disk is loaded, and is stored in the buffer memory 42 (or the buffer memory 42). 32).

The driver controller 46 refers to, for example, management information stored in the buffer memory 42 and records image data designated as a thumbnail image for a file from which a thumbnail image is to be generated. By obtaining an address on the disc and accessing the address to execute a read operation on the disc, image data as a thumbnail image generation source is obtained. This image data is
The data is sequentially transmitted from the media drive unit 4 to the video signal processing unit 3 and supplied to the data processing / system control circuit 31. Unless otherwise specified, the image data specified as the thumbnail image generation source by the management information is assumed to specify, for example, the first frame (or field) image data in the file.

The data processing / system control circuit 31 first controls the MPEG2 video signal processing circuit 33 for the supplied screen data,
Decompression processing according to the EG2 format is performed, and data decoded to the level of image data in field image units is obtained.

For example, at the stage of image data decoded to the level of the field image unit, usually,
The data is data having an image size (number of pixels) enough to be displayed in a substantially full size on the display screen. Therefore,
After the full-size image data in the unit of the field image is obtained, the reduction processing is performed on the full-size image data so that the actual required thumbnail image size can be obtained. Become. In order to reduce the image size, for example, the original full-size image data is sampled at appropriate timing for pixel data, and a signal is generated to reconstruct the image data using the sampled pixel data. What is necessary is just to perform a process.

Then, for example, the video controller 38
Generates index information (described with reference to FIG. 9) for the thumbnail image data thus obtained,
Control is performed so that the thumbnail image data is recorded on the thumbnail track of the disk together with the index information. In this way, thumbnail image data corresponding to each file is obtained and recorded on the disc.

In this embodiment, as can be seen from the above description, in addition to image data (including audio data), audio data using only audio, and character information data can be recorded as a file. However, for example, when there is no image data from which the thumbnail image is generated in the file such as audio data and character information data, for example, it is visually determined that the data is audio data or character information data in advance. Prepare image data of a pattern that can be recognized by the
M, or stored in a predetermined area of a disk), and this image data may be used as a thumbnail image.

7. Script In the present embodiment, it is possible to perform an editing process on a file (mainly a recorded file) recorded by the video camera, such as specifying a reproduction order and giving a required special effect at the time of reproduction. In performing the editing as described above, in the present embodiment, a script is provided as playback control information capable of giving a required playback output mode for a recorded file. In a video camera, for example, the video controller 38 By interpreting the script, a reproduction output mode (for example, reproduction order) according to the editing result is obtained. In the editing stage, the content of the script is updated to execute the editing process. In addition,
Here, the “script” refers to a procedure writing structure described in a predetermined programming language in order to reproduce and output moving image data, still image data, audio data, and even document data at the same time. Is done.

First, a script used as reproduction control information in the present embodiment will be schematically described.

In this embodiment, SMIL (Synchronized Multimedia Integration Language) is used as a script.
ge). SMIL is a language standardized by W3C (Internet standardization organization) in order to realize, for example, television program broadcasting and presentations on the Internet.
It is intended to realize a chronological presentation or the like based on the grammar of a (super set of TML).

First, the scheduling is <seq>, <
par>. <Seq>
Means sequential, that is, serial, and the information enclosed by this tag is reproduced in chronological order. <
par> means parallel, that is, parallel,
The information enclosed by the tags is reproduced synchronously.

Here, for example, in a file assumed to be recorded on a disk, video1, video1
2, for a file of image data represented as video3, video1 → video2 → video3
If you specify to play in the order of Or The description is made as follows.

Also, the file video1 → video
2 → video3 and video1
For audio1 which is a file of audio data
If you want to play simultaneously as a post-recording track, Will be described as follows.

A description is also provided for specifying, for a file to be reproduced synchronously with a certain file, the reproduction from a position several seconds after the reproduction of the certain file. For example, in a case where a caption (for example, an image as character information) is displayed 5 seconds after the image file of video1 is displayed (reproduced), <par><video src = "video1"><image src = The description is made as in “scratch1” begin = “5s”><//par>.

For example, if the user instructs to display the file picture 1 as a still picture file for 5 seconds, the description is as follows: <image src = “picture 1” dur = “5s”>.

Also, when a so-called frame mute is used to extract and reproduce a part of a certain moving image file, "range" is used. For example, SMPTE (Society of Motion Pictu
re and Television) can be described as follows: <video src = “video1” range = “smpte: 10: 07: 00 7: 00-10: 07: 33”>

To repeat a file by designating a certain file, "repeat" is used. For example, vi
If the file of video1 is to be repeated 10 times, the description is made as follows: <videosrc = “video1” repeat = “10”>.

In the present embodiment, such a script called SMIL is used to execute display control for giving a required display form as a thumbnail display. For this reason, for example, in the video camera system of the present embodiment, this S
Interpretation and script description (generation) corresponding to MIL
, A subset of XML is prepared. This may be stored in advance in the program memory 39 or the like as a program to be executed by the video controller 38, or may be recorded in the application layer of the disc so that the program can be read out.

In the present embodiment, such a script is generated or updated by the video controller 38 in, for example, an editing stage (or a stage in which a recording operation is being performed). It is to be kept in the area. Then, the script held in the buffer memory 32 in this manner is recorded on a disk at a predetermined opportunity or timing. The data of this script is shown in FIG. 9 and FIG.
Auxiliary Data Trac described in
k) is stored as a script file. By recording the script on the disc in this way, the next time the disc is newly loaded, the script recorded on the disc is read out,
For example, by holding the data in the buffer memory 32 and referring to the data, it is possible to perform editing and reproduction in accordance with the reproduction order and the like obtained by the previous editing.

8. Operation Screen Display In the video camera of the present embodiment, an operation screen is displayed on the display panel 67 when searching for a file recorded on a disc, and performing various editing and setting processes. The operation screen presents various information on the currently loaded disc and files recorded on the disc. Then, various operations for a certain purpose are realized by using a pressing operation on the operation screen (hereinafter referred to as a pointing operation) and an operation on various operating elements in combination.
Here, as the operation screen of the present embodiment, a so-called thumbnail display for presenting a corresponding thumbnail image (small image) for each file recorded on the currently loaded disc is also performed. That is, the user can visually confirm the contents of the file (track) recorded on the disc by looking at the thumbnail image displayed on the operation screen. In addition, a file search, reproduction, and the like can be performed by operating the thumbnail image.

FIG. 11 shows an example of a display form of an operation screen displayed on the display panel 67 of the video camera according to the present embodiment. This operation screen is displayed as an initial screen when, for example, a reproduction / edit mode is set in a state where a disc is loaded.

In the figure, first, an information display area A1 is provided in the upper part of the display area. In the information display area A1, various kinds of information required by the user are presented. Here, the battery remaining amount display area A1-1, the sports mode display area A1
-2, a reproduction mode display area A1-3, a remaining recording time display area A1-4, and a disc icon A1-5.

In the remaining battery level display area A1-1, the remaining battery level is indicated by a battery symbol and time. Although detailed description is omitted here, in the video camera of the present embodiment, a sports mode in which a user can confirm a movement of a subject or the like photographed by performing frame-by-frame playback or the like as a playback mode, for example, is performed. It can be set. Then, in the sport mode display area A1-2, when the sport mode is set, the fact that the sport mode is currently set is notified by, for example, characters "SPORT" as shown in the figure. In the reproduction mode display area A1-3, various special reproduction modes such as shuffle reproduction, repeat reproduction, and reproduction between AB are presented by characters, symbols, and the like. The remaining recording time display area A1-4 indicates the remaining recordable capacity of the disc by time. The disc icon A1-5 displays, for example, that a disc is loaded. When a pointing operation is performed on the disc icon A1-5, various information on the currently loaded disc is displayed from the operation screen shown in FIG. Is displayed,
It is possible to switch to the display of the disc information screen.

[0131] A thumbnail display area A2 is provided below the information display area A1. Here, up to 9
It is possible to display a thumbnail image (for nine files), and here, a state is shown in which thumbnail images SN of A to I are displayed. Although not shown here, for example, actually, as each thumbnail image SN,
For example, if the file is a recorded file, an image extracted from the recorded file is displayed as a still image.

Here, the arrangement order of the thumbnail images SN in alphabetical order of A to I basically follows the reproduction order. That is, in the present embodiment, the thumbnail images can be displayed in a predetermined arrangement order according to the file reproduction order specified by the script. However, if an operation such as sorting is performed, thumbnails are displayed according to the sort order.

In this case, the number of thumbnail images that can be displayed at one time is nine. For example, when the number of tracks (files) recorded on the disc is more than nine, and thus the number of thumbnail images is also more than nine, Is to point the scroll bar A4 displayed on the right side of the thumbnail display area A2 by pointing and performing, for example, a drag operation, so that the thumbnail images displayed in the thumbnail display area A2 are displayed while being scrolled. Is available.

Various icons are superimposed on each thumbnail image SN displayed in the thumbnail display area A2. As these icons, a moving image icon i1 indicates that the file corresponding to the thumbnail image on which this icon is superimposed is a file in which a moving image is recorded. In the case of FIG. 11, it is recognized that the thumbnail images (A, B, C, D, E) are moving image files.

The icon displayed on the thumbnail image (G) is a still image icon i2, which indicates that the file is a still image file. What is displayed on the thumbnail image (H) is the interview file icon i3, which indicates that it is an interview file recorded in the above-described interview mode.

Although the interview mode has been described above, it should be noted here that, for confirmation, a mode in which recording is performed mainly by voice and an image captured at that time is recorded as a still image at an arbitrary timing. It is. Therefore, the interview file is a file in which still image data is added to audio data. Further, in the interview file, the output timing of the still image data with respect to the reproduction progress time of the audio data is defined according to the timing at the time of recording. And
For example, as the actual thumbnail image (H) as an interview file, one of the still image data recorded along with the audio data is selected and displayed as a reduced image.

By the way, if the still image recording is not performed when recording in the interview mode, still image data is not attached to the interview file. That is, the file is a file containing only audio data. For example, when the thumbnail image (H) corresponds to such an interview file containing only audio data, the thumbnail image (H) is omitted in the figure, instead of displaying a reduced image of a still image. The enlarged interview file icon i3 is displayed.

[0138] Also displayed on the thumbnail image (I) is a group icon i4. In the video camera according to the present embodiment, as management on the thumbnail display,
A plurality of files that are continuous in the reproduction order can be grouped together, and the grouped files can be displayed as one thumbnail image.
The group icon i4 is superimposed on the thumbnail image corresponding to the grouping in this way.

The icon displayed on the thumbnail image (F) is a memo file icon i5. In the video camera according to the present embodiment, as an editing function, the contents of a memo written by the user can be created as one independent file. For example, if such a memo file is inserted in front of an arbitrary file and reproduced, the title content of the file can be displayed by the memo file. The memo file icon i5 indicates that the file is a memo file.

Further, for example, the icon imitating a pencil displayed on the thumbnail image (C, E) is a graffiti icon i6. As an editing function of the video camera of the present embodiment, the user can use the pen 320 or the like to perform an operation trajectory on the panel display unit 67 or to paste a stamp image or the like on an already recorded image file.
It is possible to add a graffiti-like image.
The graffiti icon i6 indicates that the file has been scribbled by the scribble function.

A mark icon i7 is displayed on the thumbnail images (B, E). The user can add a mark to an arbitrary file by an operation described later. For example, the user is made to mark a file that is important to him as a reminder. The mark icon i7 indicates that the mark is attached.

A lock icon i8 is displayed on the thumbnail images (A, E). The user can set “lock” so as not to delete or change any of the files by an operation described later. The lock icon i8 indicates that the file is locked. An effect icon i9 is displayed below the thumbnail images (A, E). In the present embodiment, it is possible to give a special reproduction effect such as various scene changes or mosaics to the file.
Indicates that the file has such a special effect.

In the present embodiment, various icons are superimposed on the thumbnail image in this manner, and various attributes such as the type of the file corresponding to the thumbnail image and various setting conditions can be provided to the user. It is possible to make them visually recognized.

The pointer icon i10 displayed so as to frame the image of the thumbnail image (E) is displayed by, for example, the user performing a pointing operation on the thumbnail image with the pen 320 or the like. It is moved and displayed with respect to the image. Then, the thumbnail image in which the pointer icon i10 is arranged and displayed is currently selected.

In addition, as for the operation screen of the present embodiment, as for the thumbnail image on which the pointer icon i10 is not arranged, the icon is not displayed in a superimposed manner, and when the pointer icon i10 is arranged and the selection is made. The icon is superimposed on the thumbnail image.

For example, if the user operates the play / pause key 308 with the pointer icon i10 placed on the desired thumbnail image, the playback starts from the file where the pointer icon i10 is placed and selected. It is getting started. Or,
When the pointing operation is performed again on the thumbnail image on which the pointer icon i10 is arranged and displayed, the reproduction is started from the track on which the pointer icon i10 is arranged.

A menu key area A3 for displaying various menu keys is provided on the left side of the thumbnail display area A2. In this menu key area A3,
In order from the top, a reproduction menu key A3-1, an edit menu key A3-2, a graffiti / effect menu key A3-3, a studio menu key A3-4, and a setting menu key A3-
5. The advanced menu key A3-6 is arranged and displayed.

The reproduction menu key A3-1 is a key for presenting a menu related to various types of reproduction and setting the reproduction mode. For example, a reproduction mode reflected in the reproduction mode display area A1-3 can be set. The edit menu key A3-2 presents various items related to editing in a recorded file unit. For example, a track (file) is moved, copied, deleted, track divided, a file is grouped, and a still image is taken out ( For example, selection of a still image to be displayed as a thumbnail image) can be performed. Also,
The operation for displaying the track information and performing a transition to the track information screen on which various settings for each track information can be performed can also be performed here.

The graffiti / effect menu key A3-3 is used to set a graffiti function and various special reproduction effects such as scene change (fade-in, fade-out, wipe, etc.), sound special effects, and image special effects (mosaic, sepia processing). Is presented. Further, the video camera of the present embodiment has a function of easily creating a video work by recording and operating the user according to the GUI. Studio menu key A3-4
Presents a menu corresponding to such a simplified video work creation function.

The setting menu key A3-5 is a menu for making various settings such as the brightness of the screen as the display section 6A, the shade of the panel color, the brightness of the viewfinder, the date and time setting, and the still image setting time. Be presented. The advanced menu key A3-6 presents a menu relating to a connection function with an external device such as a personal computer or a demo mode.

A track information display area A5 is provided below the display area. In the track information display area A5, information about the track corresponding to the thumbnail image selected in the thumbnail display area A2 (where the pointer icon i10 is arranged) is displayed. Here, first, the track number is shown in the track number display area A5-1, and subsequently,
In the date / time / title display area A5-2, the recording date / time and the title assigned to the track are alternately displayed at predetermined time intervals (for example, several seconds). The total time of the track is displayed in the time display area A5-3. The shortcut icons A5-4 correspond to the various icons described above (for example, the moving image icon i1 and the still image icon i) in accordance with the type of the file corresponding to the selected thumbnail image, the presence or absence of the grouping setting, and the like.
2. One of the interview file icon i3, the group icon i4, and the memo file icon i5) is displayed. And this shortcut icon A5-4
When a pointing operation is performed on the track information screen, it is possible to move to a track information screen.

Here, as an operation example of the menu key area A3, a case of the reproduction menu key A3-1 will be described with reference to FIG. For example, as shown in FIG. 12, when a pointing operation is performed on the reproduction menu key A3-1 with, for example, the pen 320, a first pop-up menu is displayed. First
In this case, the pop-up menu contains "← back",
Menu items of “sport analysis mode”, “play mode”, and “sort” are displayed. When the first pop-up menu is displayed, for example, when the jog dial 303 is rotated (or may be dragged on the screen with a pen or the like), the selected item moves according to the rotation direction. Let go. Then, for example, as shown in the figure, "play mode"
Is selected and the jog dial 303 is pressed (or a pointing operation with a pen for a certain period of time or more may be performed) to display a second pop-up menu.

Here, in the second pop-up menu,
Four items of "normal", "disk repeat", "shuffle", and "intro scan" are displayed. Then, the user can select and determine a desired item from these items by performing the same operation on the second pop-up menu as the above-described operation on the first pop-up menu. The play mode set in this way is reflected on the display contents of the reproduction mode display area shown in FIG. 11, for example.

9. File search function of present embodiment 9-1. First Example Next, on the premise of the configuration of the video camera of the present embodiment described above, the file search function according to the present embodiment will be described. As a file search function to be described below, even when a playback image is displayed on the display panel 67 of the video camera, a search is performed on the display panel 67 for a file that can be played back and output. It is possible to shift to the operation of reproducing the searched file.
Therefore, first, the first example of the file search function according to the present embodiment will be described.

FIG. 13 shows an operation procedure example corresponding to the file search function as the first example, corresponding to the display state on the display panel 67. In FIG. 13A, since the video camera is playing a certain file, the display panel 67 is in a state where the playback main screen PP is displayed using almost the entire display area. It is shown. That is, the reproduced image of the file is displayed and output. At this time, if the reproduced file is a moving image file, the moving image is displayed. If the reproduced file is a still image file or an interview file, a still image is displayed. When an interview file containing only audio is being played, the playback main screen PP is not displayed. However, it is also possible to display, for example, an audio-only interview file, that is, an image or the like designed to indicate an audio track.

Under the display state shown in FIG. 13A, for example, if the user performs a rotation operation on the jog dial 303, the display content on the display panel 67 changes as shown in FIG. 13B. I do.

As the display contents of the display panel 67 shown in FIG. 13B, the same display of the main reproduction screen PP as shown in FIG. 13A is continued, and, for example, the lower left of this main reproduction screen PP is displayed. The search child screen CP is superimposed and displayed on the side. Actually, any one of the thumbnail images SN displayed on the operation screen shown in FIG. 11 is to be displayed on the search sub-screen CP in a similar display form. . That is, for the area of the search sub-screen CP, the first
In the case of the example, a thumbnail image corresponding to the file recorded on the currently loaded disc is displayed. At this time, various icons to be displayed in each of the thumbnail images SN described with reference to FIG. 11 may be displayed. However,
Since the search sub-screen CP has a small area size, the display of various icons may be omitted.
Also, instead of displaying all the icons to be actually presented, for example, a representative icon may be displayed at least to the extent that the file type can be grasped.

Here, the first jog dial 3 described above is used.
In the present embodiment, which file thumbnail image is to be displayed in the search sub-screen CP initially displayed in response to the rotation operation of “03” is determined as follows. It is assumed that First, when the jog dial 303 is rotated in the forward direction (refer to FIG. 7B), the file to be reproduced next in the reproduction order starts from the file currently displayed on the main reproduction screen PP. The corresponding thumbnail image is displayed.
When the jog dial 303 is rotated in the reverse direction (see FIG. 7B), the file should be played back immediately before in the playback order, starting from the file currently displayed on the main playback screen PP. Displays a thumbnail image corresponding to the file. Therefore, at this stage, the user sees the search sub-screen CP initially displayed in accordance with the rotation operation direction of the jog dial 303 to determine what is the file in the next or previous reproduction order of the currently reproduced file. Can be visually grasped.

[0159] For example, it is assumed that a rotation operation on the jog dial 303 is further performed while the search child screen CP is displayed as shown in FIG. 13B. Then, as shown in FIGS. 13 (b) and 13 (c), the files are sent or returned in the order of reproduction in accordance with the rotation direction of the jog dial 303 and the number of clicks. The thumbnail images displayed in the CP are changed. In other words, when the jog dial 303 is rotated in the forward direction, every time a click feeling is obtained, switching is performed so that the thumbnail image corresponding to the next file in the playback order is displayed. Become. On the other hand, when the jog dial 303 is rotated in the reverse direction, each time a click sensation is obtained, the image is switched so that the thumbnail image corresponding to the previous file is displayed in playback order. It is.

That is, in the present embodiment, by rotating the jog dial 303 as described above to change the thumbnail image displayed on the search sub-screen CP, for example, the file is transmitted / received in the reproduction order. It is possible to perform a file search by performing a return. At this time, the reproduction main screen PP is continuously displayed, and accordingly, the display panel 67
In the state where the search child screen CP is superimposed and displayed, it is possible to perform a file search while displaying the image state of the file currently reproduced and output.

Then, for example, the above-described jog dial 3
It is assumed that a file search is performed by the rotation operation of 03, and a pressing operation is performed on the jog dial 303 in a state where a thumbnail image corresponding to a certain file is displayed in the search sub-screen CP. In this state, for example, it is assumed that a file corresponding to the thumbnail image displayed in the search sub-screen CP is an image file. That is, it is assumed that the file is a moving image file or a still image file. This state corresponds to FIG. 13 described above.
It is assumed that the case shown in FIG. The pressing operation on the jog dial 303 is a reproduction instruction operation.
Therefore, as shown in FIG. 13B, if a pressing operation on the jog dial 303 is performed in a state where the thumbnail image corresponding to the image file is displayed in the search sub-screen CP, the reproduction is performed by The reproduction of the file as the screen PP is ended, and the reproduction and output of the file corresponding to the thumbnail image which has been displayed in the search sub-screen CP is started. Then, FIG.
As shown in (e), on the display panel 67,
The playback image of the file whose playback output has been started is displayed as the playback main screen PP.

In the present embodiment, when the reproduction file is changed as described above, the sub-screen for search CP which has been displayed so far is erased. Then, after this, if the rotation operation on the jog dial 303 is performed again,
As described as the transition from FIG. 13A to FIG. 13B, the search child screen CP is displayed.

On the other hand, for example, in the state shown in FIG. 13C, it is assumed that a thumbnail image corresponding to a certain interview file is displayed in the search child screen CP. If a pressing operation (playback instruction operation) on the jog dial 303 is performed in this state, in this case, as shown in a transition to FIG. 13F, the search operation shown in FIG. The reproduction and output of the interview file corresponding to the thumbnail image in the child screen CP is started. If the interview file reproduced and output here is accompanied by a still image, a still image synchronized with the reproduction timing is displayed on the display panel 67 shown in FIG. Will be. On the other hand, if the interview file to be played back is only audio data without a still image,
The display panel 67 shown in FIG. 13F is not displayed as described above. That is, the image display as the reproduction main screen PP is not performed.

As can be seen from the above description, in the present embodiment, by displaying the search sub-screen CP together with the main reproduction screen PP on the display panel 67, the image display currently being reproduced and output is erased. Without retrieving the file, it is possible to search for a file and switch to reproduction of a desired file.

[0165] In FIG. 13, the search child screen CP is displayed on the lower left side of the display panel 67.
It is not necessary to be limited to this, and it may actually be changed. Here, the search sub-screen CP is superimposed on a predetermined area in the reproduction main screen PP. However, for example, the reproduction main screen PP and the search sub-screen CP do not overlap depending on the display mode. As described above, it is also conceivable to display in different display areas. Furthermore, the number of thumbnail images (the number of files) to be displayed in the search sub-screen CP is not limited to one, and for example, thumbnail images corresponding to two or more files that are consecutive in reproduction order are displayed. It is also conceivable to display the information in a predetermined arrangement state.

Next, the processing operation for realizing the file search function as the first example shown in FIG. 13 will be described with reference to FIG.
Shown in Note that the processing operations shown in this figure are realized, for example, by the video controller 38 functioning as a master controller and the data processing / system control circuit 31, the driver controller 46, and the like executing control processing as necessary. You.

In the process shown in FIG. 14, as shown as the process of step S101, a control process for starting reproduction of a specified file from among the files recorded on the disc is executed. Where it starts. By this processing, a reproduced image is displayed on the display panel 67 as the main reproduction screen PP, for example, as described with reference to FIG.

In the next step S102, the process waits for the first rotation operation to be performed on the jog dial 303 after the file reproduction is started, and it is determined here that the rotation operation to the jog dial 303 has been performed. If so, the process proceeds to step S103.

In step S103, processing for initial display of the search child screen CP is executed in response to the above-described rotation operation on the jog dial 303. That is, as described as the transition from FIG. 13A to FIG. 13B, according to the rotation direction of the jog dial 303, the file to be reproduced next to the currently reproduced file, or one file to be reproduced. A thumbnail image corresponding to the previous file is displayed as a search sub-screen CP.

For this purpose, for example, the video controller 38 detects the rotation direction as operation information corresponding to the operation of the jog dial 303. Then, in accordance with the detected rotation direction, the file next to the file currently being reproduced or the file immediately before is specified, and the file of the thumbnail image data corresponding to the specified file is specified from the thumbnail track of the disk. read out. However, if it is assumed that the thumbnail images have already been read from the disk and stored in, for example, the buffer memory 32, the search may be performed from the buffer memory 32 and the necessary thumbnail image data may be read. It is said. Then, the thumbnail image data obtained by reading as described above is acquired, for example, as shown in FIG.
As shown in (1), the image is superimposed on the position of the search sub-screen CP so as to be superimposed on the current reproduction image data as the main reproduction screen PP and output for display.

When the initial display of the search child screen CP in step S103 is completed, in the next step S104, it is determined again whether or not the rotation operation of the jog dial 303 has been performed. The rotation operation of the jog dial 303 determined here is as shown in FIG.
This corresponds to the sending / returning operation according to the file playback order for the thumbnail images in the search sub-screen CP described as the transition between (c). Then, step S104
If a negative result is obtained in step S106, step S106
Proceeds to step S10 if a positive result is obtained.
Go to 5.

When it is determined in step S104 that a rotation operation has been performed on the jog dial 303, information on the rotation direction and the number of clicks is obtained as the operation information. Therefore, the next step S10
In 5, a display control process for changing the thumbnail image to be displayed in the area of the search sub-screen CP is executed according to the information on the rotation direction and the number of clicks. In this case, according to the information of the rotation direction and the number of clicks, for example, the thumbnail image currently displayed on the search sub-screen CP is set in the corresponding file as a base point and later in reproduction order than that. Target file or a target file that is placed before in the reproduction order, and a thumbnail image corresponding to the specified file is searched for in the search sub-screen C.
This is to be superimposed on the area P. This step S
After the processing of 105 is completed, the process proceeds to step S106.

In step S106, it is determined whether or not a jog dial pressing operation has been performed. The jog dial pressing operation here is performed, for example, as shown in FIG.
As described as (e) or the transition from FIG. 13 (c) to FIG. 13 (f), this is a determination operation for starting reproduction of a file corresponding to a thumbnail image displayed on the search child screen CP. .

If a negative result is obtained in step S106, the process returns to step S104. If a positive result is obtained, step S107 is performed.
Proceed to. In step S107, first, the file playback operation that has been played back is stopped. Thus, for example, if a reproduced image is displayed on the display panel, the reproduced image is not output. At the same time, the search sub-screen CP that has been superimposed and displayed is also deleted. Then, the next step S108
In, access to the file is executed. That is, the video controller 38 determines in step S106
At the time of the determination operation determined by
The file corresponding to the thumbnail image displayed on P is recognized, and an access is made to the recording position on the disk where the file is recorded. If the access has been completed, the process returns to step S101 to start file playback from this access position. Thereby, reproduction of the file searched and selected on the search sub-screen CP is started. And
If the file has information as image data, the reproduced image is displayed and output on the display panel 67 as the main reproduction screen PP.

Although the processing is omitted in FIG.
For example, under the state where the search sub-screen CP is displayed,
If the operation on the jog dial 303 has not been performed for a certain period of time or more, the superimposed display of the search child screen CP is deleted, and only the reproduction main screen PP is displayed. In the above description, the operation on the search child screen CP is performed using the jog dial 303. However, the present invention is not limited to this, and other predetermined operation elements may be used. Not something.

9-2. Second Example Next, a file search function according to the present embodiment as a second example will be described. The second example corresponds to a case where the video camera device of the present embodiment and a device functioning as a server are connected via a network to form a communication system. Therefore, first, a configuration example of a communication system corresponding to the second example will be described with reference to FIG.

FIG. 15 shows the configuration of the communication system.
An example is shown in which the video camera 0 of the present embodiment and a computer device as the server 400 are interconnected. In this case, the video camera 0 and the server 400
It is connected by hernet. In other words, physically, for example, the I / F terminal T3 which is the Ethernet terminal of the video camera 0 and the Ethernet
The terminals are connected by cables.

In FIG. 15, the video camera 0
And the server 400 are individually connected, but for example, in actuality, the video camera 0 is connected to a LAN transmission path, such as another computer device connected to the LAN. A system configuration that can communicate with the device may be used. The communication system according to the present embodiment may be configured so as to communicably connect the video camera 0 according to the present embodiment to another image / audio data recording / reproducing device. is there. As the interface for communication in this case, the above-described Ethernet may be employed. For example, in consideration of the fact that the interconnected devices are video and audio recording / reproducing devices, the IEEE 1394 interface is used.
Alternatively, another data interface such as USB or Universal Serial Bus (USB) may be adopted. In other words, there is no need to make a network connection. As an example, if the connection is made by the IEEE 1394 interface, the external interface 8 is connected to the IEEE 1 interface.
394 interface, and I / F
The terminal T3 has a terminal shape corresponding to IEEE1394. However, in the following description, it is assumed that the video camera 0 shown in FIG. 15 and the server 400 as a personal computer are interconnected.

Next, a file search function as a second example will be described. As a second example, since the video camera 0 and the server 400 are connected by Ethernet, transmission and reception of data recorded on the mutual recording medium between the video camera 0 and the server 400 is enabled. You. Therefore, in the case of the present embodiment, for example, AV (A) such as an image file (moving image file, still image file) or an audio file recorded on a recording medium such as a hard disk provided in the server 400 side.
An udio Visual) file can be transmitted from the server 400 to the video camera 0. Then, the video camera 0 can receive the file transmitted from the server 400 and record it on a disk.
Of course, on the contrary, the file reproduced from the disc by the video camera 0 is transmitted to the server 400,
It is also possible for the server 400 to save and transmit the transmitted data.

As a second example of the present embodiment, the following file search function is provided on the premise that image / audio files can be transmitted and received as described above. After that, the file search function as the second example
This will be described with reference to the flowchart shown in FIG.

FIG. 16 shows the processing of the video camera 0 and the processing of the server 400. The processing of the video camera 0 is performed by the video controller 38 functioning as a master controller and the data processing / system control circuit 31, the driver controller 46, and the like appropriately executing the processing as in the case of FIG. You. On the other hand, the processing of the server 400
0, for example, C in the personal computer device
It is assumed that the PU executes.

In this case, first, in step S201, the video camera 0 waits for generation of a request for starting thumbnail display on the display panel 67. The thumbnail display here means
This means displaying a list of thumbnail images of AV files recorded on the server (ie, an external source). Then, if a thumbnail display start request is generated by performing a predetermined operation for starting thumbnail display on the operation unit 7 or transmitting a thumbnail display start request command by remote control from the server 400, for example, step S202. It is made to advance to.

In step S202, the server 40
Processing for transmitting a command for requesting data of a thumbnail image to 0 is executed.

On the server 400 side, first, in step S301, the video camera 0 as a client
Is waiting for the reception of the thumbnail image data request command transmitted from the MFP. If it is determined that the thumbnail image data request command has been received, the thumbnail image data request Is sent. At this time, the server 40
On the 0 side, for example, data of a thumbnail image recorded on a recording medium such as a hard disk is read, or
A thumbnail image is generated based on partial data of an AV file recorded on the hard disk, and the obtained thumbnail image data is transmitted and output. It should be noted that information for identifying the original AV file is also attached to each thumbnail image data file, so that file playback and file reading operations according to subsequent thumbnail display operations can be performed. It is possible.

In response to the transmission of the thumbnail image data as described above, the video camera 0
As indicated by reference numeral 203, the received thumbnail image data is received. In this case, the thumbnail image data is recorded on the disc. Then, by the processing of the subsequent step S204, thumbnail display is performed on the display panel 67 based on the transmitted thumbnail image data. At this time, for example, the thumbnails may be displayed in a display form as shown as the thumbnail display area A2 in FIG.

The thumbnail display in step S204 is continuously executed, for example, while waiting for the reproduction instruction operation in the next step S205. If it is determined in this step S205 that a reproduction instruction operation has been performed after selecting a certain thumbnail image on the thumbnail display, the process proceeds to step S206.

In step S206, a file request command is transmitted. This file request command
It has a command content for requesting the file (thumbnail image) selected on the thumbnail display when the reproduction instruction is received in step S205.

On the server 400 side, step S3
03, and waits for reception of the file request command. Then, upon receiving the file request command transmitted in the process of step S206, a positive result is obtained in step S303 and step S304 is obtained.
It is made to advance to.

[0189] In step S304, a process for reading the file requested by the file request command from the recording medium and transmitting the file to the video camera 0 is executed. Then, on the video camera 0 side, the reception of the transmitted file and the recording of the received file are started by the processing of step S207. In parallel with this, for example, the next step S2
As shown in a process 08, a control process for reproducing and outputting the received file data on the video camera 0 side is executed. That is, if the received file is an image data file, the image is output to the display unit 67 as the main reproduction screen PP. If the file has audio data, this audio is output.
As described above, in the second example, when a reproduced image is displayed as the reproduction main screen PP shown in FIG. 13A, for example, data transmitted from the server is displayed. is there.

After the reproduction output is started in this way, actually, at the required occasion, the subsequent step S
As indicated by reference numeral 209, a status notification is sent to the server 400. As this status notification, information having required information content according to the current playback status, display status, and the like is transmitted.For example, in this case, at least information for identifying the file that is currently being played back is included. , A search sub-screen CP displayed as described later
Has information for identifying the file (thumbnail image) displayed in.

Then, in the next step S210, control processing for continuing reception of a file and recording on a disk is executed. Although the file is received and recorded in step S210, first, when the process first proceeds to the process in step S208 and thereafter,
The reception and recording of the file requested in step S206 are performed. Then, for example, when the reception and recording of this file are completed, the server 400 makes appropriate selections from the remaining files and sequentially transmits them to the video camera 0 side. As described below, the file selected based on the contents of the status notification sequentially transmitted from the video camera 0 is transmitted. Then, as the process of step S210, the file transmitted from the server 400 is also received as described above, and the file is recorded on the disk.

That is, in the present embodiment, if there is enough space for writing / reading to / from the memory while reproducing / outputting the file, the file is uploaded from the server 400 by an instruction as a status notification.
The background operation of receiving this and recording it on the disk is performed. How the server 400 selects a file to be transmitted based on the contents of the notification status will be described later.

In the video camera 0, step S2
In step S211, which is assumed to be subsequent to 10, a search sub-screen CP is displayed as described with reference to FIG. 13, for example, and an operation (jog dial rotation operation) for performing a file search on the search sub-screen CP is performed. Control processing relating to the display and the like. If no rotation operation is performed on the jog dial 303, this step S211 and the following step S21 are performed.
Step 2 is omitted, and the process proceeds to step S214.

Step S following step S211
Depending on the processing as 212, it is determined whether or not a determination operation (jog dial pressing operation) for the file searched on the search child screen CP has been performed.
If a negative result is obtained here, step S214
Proceed to processing. On the other hand, if it is determined in step S212 that the determination operation has been performed, the process proceeds to step S212.
Proceed to 213.

In step S213, it is determined whether or not the file whose reproduction output has been designated by the above-described determination operation has already been recorded on the disk after the video camera 0 has completed capturing the file. Here, when a positive result is obtained, the process returns to step S208.
In step S208 in this case, for example, the data of the specified file recorded on the disc is reproduced and output. Then, the subsequent processing is executed. If a negative result is obtained in step S213, the process returns to step S206 to request the transmission of the file designated for reproduction, and thereafter, executes the processing in step S207 and thereafter, thereby executing the processing of the received file. Reproduction and output are performed while receiving and recording data. In any case, if it is determined in step S212 that the determination operation has been performed, the server 400
Fig. 13 for files downloaded from
The reproduction of the designated file is started as shown in (b) → (e) or FIG. 13 (c) → (f).

By the way, in such a process, recording of the received file in step S210 may be executed while playing back the file on the disc in step S208. For example, such an operation can be performed as long as the capacity of the buffer memory 32 is sufficient. That is,
By accumulating recording data and reproduction data in the buffer memory 32 and performing high-speed writing and reading on the disk, even if a pause period is provided for the writing and reading operations on the disk,
Recording and reproduction can be performed without interrupting the time series continuity of the recording data and the reproduction data.

The processing in step S214 includes:
It is determined whether the reproduction has ended or the reproduction has stopped.
The terminating reproduction here means that the reproduction output by the video camera 0 has been completed for all the files stored in the server 400 and to be reproduced and output in the reproduction order, for example. The term “reproduction stop” refers to, for example, interrupting the reproduction output operation so far by performing a reproduction stop operation on the video camera 0 side (or remote control for stopping reproduction from a server).

If a negative result is obtained in step S214, the process returns to step S208 to continue the reproduction operation up to now. Then, for example, if a jog dial operation for searching for a file is performed, a process corresponding to this is performed.
On the other hand, if a negative result is obtained in step S214, the process proceeds to step S215 to execute a required end process. Note that as one of the end processes, a cancel notification corresponding to the end of the playback operation on the video camera 0 side is made. Steps S206 to S2
In the process of repeating the process as 14, for example, when it is determined that the recording of all files to be downloaded to the disk has been completed, the status notification process in step S209, the file reception in step S210, Processing required for downloading a file, such as recording processing, is omitted and passed.

From here, the processing on the server 400 side is as follows:
The remaining processes after step S305 will be described. In step S305, the process waits for reception of a status notification transmitted from the video camera 0. If it is determined that the status notification has been received, the process proceeds to step S306.

In step S306, a file is selected based on the content of the received status notification, and processing for reading out the selected file from the recording medium and transmitting and transmitting the file is executed.

Here, in step S306,
The file selection based on the contents of the status notification is performed according to the following rules. As the operation status of the video camera 0, the reproduction main screen PP
When only the playback output of the file is performed and the search sub-screen CP is not displayed, the playback main screen PP
As a result, among the files whose reproduction order is later than the file being reproduced and output, the file with the smallest reproduction order is selected from the files that are not yet recorded on the disc. As the operation status of the video camera 0, the reproduction main screen PP
When the search sub-screen CP is displayed above, a file corresponding to the thumbnail image currently displayed on the search sub-screen CP is selected. By following the rules described above, for example, in practice, the file that is most likely to be reproduced and output after the file that is currently being reproduced and output is selected and uploaded to the video camera 0. It is to be considered as follows.

[0202] In the next step S307, it is determined whether or not a cancel notification transmitted from the video camera 0 has been received. If it is determined that the cancellation notification has not been received, the process advances to step S308 to determine whether transmission of all files to be transmitted to the video camera has been completed. Here, if a negative result is obtained, the process returns to step S305.
On the other hand, step S307 or step S3
If a positive result is obtained in step 08, the processing up to this point is terminated and the process returns to the original routine.

The present invention is not limited to the configuration described above, and various changes can be made. For example, the present invention can be applied to other than the video camera device described in the embodiment. That is, the present invention may be any audio / video device capable of reproducing images other than a video camera. Further, the recording medium on which the image and sound are recorded and reproduced is not limited to a disk, but may be any recording medium such as a recording medium using a memory element such as a flash memory, particularly any recording medium that can be randomly accessed. .

[0204]

As described above, according to the present invention, the display means (display panel) displays the first data to be reproduced and output from the recording medium in the first display area (reproduction main screen). , Second display area (child screen for search)
, A part of the data (thumbnail image) recorded on the recording medium is displayed. Then, for example, when a reproduction instruction is given in a state where the search sub-screen is displayed, the data for which the search sub-screen is partially displayed is displayed and output on the main reproduction screen. I have to.

As a result, according to the present invention, for example, while a reproduced main screen reproduced image is output and viewed, a data retrieval and a reproduction-related operation can be simultaneously performed by displaying a retrieval sub-screen and performing an operation corresponding thereto. And the usability of the user is improved accordingly.

According to the present invention, in the display portion (display panel), the first main data to be reproduced and output from the recording medium with respect to the first display area (reproduction main screen), or the first main data to be output. In addition to displaying related sub-data (thumbnail image of icon display, etc.), a second display area (search sub-screen) displays sub-data related to the second main data recorded on the recording medium. Is displayed, and in the same manner as described above, when a playback instruction is issued in a state where the search sub-screen is displayed, the search sub-screen at this time reproduces data of which a part is displayed. Display output on the main screen. This also provides the same effect as above.

[0207] Also, with the configuration of the present invention, by displaying the sub-data, even if the image information is not included as a part of the data, such as audio data, for example, For example, an icon indicating audio data is displayed as sub data. In the case of data mainly composed of audio data, which is accompanied by still image data, the still image data is displayed as sub-information. And this gives
For example, it facilitates visual search of voice data or voice-based data.

In the above configuration, if the user can change the second data (that is, the file) for which a part of the data is to be displayed in the second display area by an instruction operation by the user, for example, Can perform an operation for changing the file to be displayed in the second display area, so that the search function is further enhanced.

If the second display area is superimposed and displayed using a partial area in the first display area, even if there is a restriction that the display screen is relatively small, for example, Can be used to effectively display images in the first display area and the second display area at the same time.

Further, according to the present invention, by providing data acquisition means for acquiring data to be recorded on a recording medium, a wider range of applications can be obtained. Specifically, if a device for collecting captured images and sound, such as a CCD image pickup device and a microphone, is provided as a data acquisition unit, the device is suitable as a video camera device, a still camera device, and the like. If a possible interface is provided, a function of searching for data downloaded from an external device can be obtained. Further, according to the present invention, a search operation can be made lighter by configuring so as to correspond to a recording medium which can be randomly accessed, so that a search function more useful for a user can be provided. It is.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a track structure of a disc corresponding to a video camera according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a track portion of a disc corresponding to the video camera of the embodiment in an enlarged manner.

FIG. 3 is an explanatory diagram showing specifications of a disc corresponding to the video camera of the embodiment.

FIG. 4 is a block diagram of an internal configuration of the video camera according to the embodiment.

FIG. 5 is a block diagram of an internal configuration of a media drive unit of the video camera according to the embodiment.

FIG. 6 is a side view and a plan view of the video camera of the embodiment.

FIG. 7 is a front view and a rear view of the video camera of the embodiment.

FIG. 8 is a perspective view showing the movement of a movable panel unit.

FIG. 9 is a conceptual diagram showing an example of a data structure in a disk according to the embodiment.

FIG. 10 is a conceptual diagram showing an example of a data structure in a disk according to the embodiment, corresponding to a physical area of the disk.

FIG. 11 is an explanatory diagram showing a display form example of an operation screen (thumbnail display) in the video camera of the present embodiment.

FIG. 12 is an explanatory diagram showing an operation example of a reproduction menu key.

FIG. 13 is an explanatory diagram showing a file search function as a first example of the present embodiment, together with a display form of a display panel 67;

FIG. 14 is a flowchart showing a processing operation for realizing a file search function as a first example.

FIG. 15 is an explanatory diagram showing an example of a system configuration corresponding to a file search function as a second example.

FIG. 16 is a flowchart showing a processing operation for realizing a file search function as a second example.

FIG. 17 is an explanatory diagram showing a procedure for searching for a file as a conventional example.

[Explanation of symbols]

1 lens block, 2 camera block, 3 video signal processing section, 4 media drive section, 5 deck section,
6 display / image / audio input / output unit, 6A display unit, 6B
Touch panel, 7 operation unit, 8 external interface, 9 power supply block, 11 optical system, 12 motor unit, 22 sample hold / AGC circuit, 23 A /
D converter, 24 Timing generator, 25
Camera controller, 31 data processing / system control circuit, 32 buffer memory, 33 video signal processing circuit, 34 memory, 35 motion detection circuit, 36
Memory, 37 audio compression encoder / decoder, 38
Video controller, 39 program memory, 41
MD-DATA2 encoder / decoder, 42 buffer memory, 43 binarization circuit, 44 RF signal processing circuit, 45 servo circuit, 46 driver controller,
51 disk, 52 spindle motor, 53 optical head, 54 magnetic head, 55 thread motor, 61
Video D / A converter, 62 display controller,
63 composite signal processing circuit, 64 A / D converter, 65 D / A converter, 66 amplifier, 67 display panel, 101 RF amplifier, 103 AGC / clamp circuit, 104 equalizer / PLL circuit, 105
Viterbi decoder, 106 RLL (1,7) demodulation circuit,
107 matrix amplifier, 108 ADIP bandpass filter, 109 A / B track detection circuit, 110
ADIP decoder, 111 CLV processor, 11
2 Servo processor, 113 Servo driver, 11
4 data bus, 115 scramble / EDC encoding circuit, 116 ECC processing circuit, 117 descramble / EDC decoding circuit, 118 RLL (1,
7) Modulation circuit, 119 magnetic head drive circuit, 120
Laser driver, 121 transfer clock generation circuit, 20
1 camera lens, 202 microphone, 203 movable panel section, 204 viewfinder, 205 speaker, 300 main dial, 301 release key, 302 delete key, 303 jog dial, 30
4 photo key, 305 zoom key, 306 focus key, 307 backlight compensation key, 308 play / pause key, 309 stop key, 310 slow play key, 3
11, 312 Search key, 313 Record key, 314
Screen display key, 315, 316 Volume key, 320
Pen, 400 server, A-1 information display area, A-
2 Thumbnail display area, A-3 menu key area, A-4 scroll bar, A5 track information display area, i1 to i10, i20 to i21 icons (displayed on thumbnail images), Ld land, NWG
Non-wobbled grooves, WG wobbled grooves,
Tr / A, Tr / B tracks, A21 thumbnail image display area, A22 page change area, A23 operation button area

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H04N 5/76 H04N 5/907 B 5/85 5/91 J 5/907 G06F 15/40 370B 5/93 370D 15 / 403 380F H04N 5/91 N 5/93 Z F term (reference) 5B075 MM04 ND06 ND12 NK10 PP03 PP13 PQ02 PQ04 PQ32 PQ48 PQ70 UU40 5C022 AA11 AB22 AB40 AB66 AC03 AC12 AC16 AC32 AC34 AC42 AC54 AC56 AC71 A72A14 AA37 AA38 5C052 AA03 AB03 AB06 AC08 AC10 CC06 CC20 DD02 DD06 DD10 EE02 EE03 EE06 GA01 GA04 GA06 GA07 GA08 GA09 GB01 GB07 GE06 5C053 FA07 FA14 FA23 FA27 GA11 GB11 GB15 GB19 GB36 GB37 HA21 HA29 HA40 JA01 JA16 LA30 KA01 LA01

Claims (32)

[Claims] 1. A reading unit for reading data recorded on a recording medium, a display unit, an instruction information input unit for inputting predetermined instruction information, and a first display area in the display unit. The first data read by the reading means can be reproduced and displayed, and a part of the second data read by the reading means can be displayed in a second display area of the display means. And a part of the second data is displayed in the second display area, and
When the instruction information for instructing the reproduction is input by the instruction information input means, the second data, a part of which has been displayed in the second display area, is replaced with the first area. And a control means for controlling the display means so as to reproduce and display the recording and / or reproducing apparatus. 2. The controller according to claim 1, wherein a part of said second data is displayed in said second display area, and said instruction information for instructing said second data to be changed by said instruction information input means. Is input, a second part of which should be displayed in the second display area
2. The recording and / or reproducing apparatus according to claim 1, wherein the control is executed so that the data is changed. 3. The control unit according to claim 1, wherein the control unit controls the display unit so that a partial area in the first display area is displayed as the second display area. 2. The recording and / or reproducing apparatus according to claim 1. 4. A system comprising: data acquisition means for acquiring data to be recorded on a recording medium; and recording means for recording data acquired by the data acquisition means on the recording medium. The recording and / or reproducing apparatus according to claim 1, wherein 5. The recording and reproducing apparatus according to claim 4, wherein said data acquisition means is configured to be capable of converting a captured image and / or collected sound into data to be recorded on said recording medium. And / or a playback device. 6. The recording and / or reproducing apparatus according to claim 4, wherein the data acquisition means is configured to receive and acquire data transmitted from an external device. 7. The recording and / or reproducing apparatus according to claim 1, wherein the recording medium is a recording medium that enables random access. 8. A reading means for reading data recorded on a recording medium, a display means, an instruction information input means for inputting predetermined instruction information, and a first display area in the display means. Displaying the first main data recorded on the recording medium or the sub-data related to the first main data, and displaying the first main data on the second display area of the display means on the recording medium. Display control means capable of displaying sub-data related to the second main data that is recorded, and sub-data related to the second main data in the second display area When the instruction information for displaying and being input by the instruction information input means is input,
Recording control means for performing control so as to reproduce and output the second main data whose sub-data has been displayed in the second display area until now. Playback device. 9. The data recorded on the recording medium is audio data, and the sub-data is predetermined image information that can indicate that the data is audio data. A recording and / or reproducing apparatus as described in the above. 10. The data recorded on the recording medium,
9. The recording and / or reproducing apparatus according to claim 8, wherein audio data and one or more still image data accompanying the audio data are used, and the still image data is used as the sub data. 11. The display control means displays sub data related to the second main data in the second display area, and instructs the instruction information input means to change the second data. Control is performed such that, when instruction information is input, sub data related to the second main data, which is to be displayed in the second display area, is changed. The recording and / or reproducing apparatus according to claim 8, wherein 12. The display control device according to claim 1, wherein the display control device controls the display device so that a partial area in the first display area is displayed as the second display area. 9. The recording and / or reproducing apparatus according to 8. 13. A system comprising: data acquisition means for acquiring data to be recorded on a recording medium; and recording means for recording data acquired by the data acquisition means on the recording medium. 9. The recording and / or reproducing apparatus according to claim 8, wherein: 14. The recording and recording apparatus according to claim 13, wherein said data acquisition means is configured to be capable of converting a captured image and / or collected sound into data to be recorded on said recording medium. And / or a playback device. 15. The recording and / or reproducing apparatus according to claim 13, wherein said data acquisition means is configured to receive and acquire data transmitted from an external device. 16. The recording medium according to claim 8, wherein the recording medium is a recording medium that can be randomly accessed.
2. The recording and / or reproducing apparatus according to claim 1. 17. A readout procedure for reading data recorded on a recording medium, an instruction information input procedure for inputting predetermined instruction information, and a readout procedure for a first display area in a display area by the readout procedure. The reproduced first data is reproduced and displayed,
A part of the second data read by the reading procedure can be displayed on the second display area in the display region, and the second data is displayed on the second display area. When a part of the data is displayed and the instruction information for instructing the reproduction is input according to the instruction information input procedure, a part of the data is displayed in the second display area until now. And a control procedure for controlling the first data to be reproduced and displayed in the first area. 2. An information processing method comprising: 18. The control procedure, wherein a part of the second data is displayed in the second display area, and instruction information for instructing the second data change by the instruction information input procedure is provided. Is input, a second part of which should be displayed in the second display area
18. The information processing method according to claim 17, wherein the control is performed such that the data of the data is changed. 19. The control method according to claim 17, wherein the control is performed on the display portion so that a partial area in the first display area is displayed as the second display area. An information processing method according to claim 1. 20. A data acquisition procedure for acquiring data to be recorded on a recording medium, and a recording procedure for recording data acquired by the data acquisition procedure on the recording medium. The information processing method according to claim 17, wherein 21. The information according to claim 20, wherein the data acquisition step is configured to convert a captured image and / or collected sound into data to be recorded on the recording medium. Processing method. 22. The information processing method according to claim 20, wherein the data acquisition procedure is configured to receive and acquire data transmitted from an external device. 23. The recording medium according to claim 1, wherein the recording medium is a recording medium that can be randomly accessed.
8. The information processing method according to 7. 24. A reading procedure for reading data recorded on a recording medium, an instruction information inputting procedure for inputting predetermined instruction information, and a first display area in a display portion, wherein The first main data or the sub data related to the first main data that is recorded is displayed, and it is determined that the first main data is recorded on the recording medium with respect to the second display area in the display portion. A display control procedure capable of displaying the sub data related to the second main data to be displayed; and the sub data related to the second main data is displayed in the second display area; and When instruction information for instructing reproduction is input according to the instruction information input procedure, the second main data whose sub-data has been displayed in the second display area is reproduced and output. control And a reproduction control procedure for executing the information processing method. 25. The method according to claim 24, wherein the data recorded on the recording medium is audio data, and the sub-data is predetermined image information that can indicate that the data is audio data. The information processing method described. 26. Data recorded on the recording medium is as follows:
25. The information processing method according to claim 24, wherein the still data is audio data and one or more still image data accompanying the audio data, and the still image data is the sub data. 27. The display control procedure, wherein sub-data related to the second main data is displayed in the second display area, and the second data is instructed by the instruction information input procedure. Control is performed such that, when instruction information is input, sub data related to the second main data, which is to be displayed in the second display area, is changed. The information processing method according to claim 24, wherein 28. The display control procedure according to claim 28, wherein the control of the display portion is performed such that a partial area in the first display area is displayed as the second display area. 25. The information processing method according to 24. 29. A data acquisition procedure for acquiring data to be recorded on a recording medium, and a recording procedure for recording data acquired by the data acquisition procedure on the recording medium. 25. The information processing method according to claim 24, wherein: 30. The information according to claim 29, wherein the data acquisition procedure is configured to convert a captured image and / or collected sound into data to be recorded on the recording medium. Processing method. 31. The information processing method according to claim 29, wherein the data acquisition procedure is configured to receive and acquire data transmitted from an external device. 32. The recording medium according to claim 2, wherein the recording medium is a recording medium that can be randomly accessed.
5. The information processing method according to item 4.