JPH03248370A - Still picture reproducing device - Google Patents

Abstract

PURPOSE:To eliminate unnature of access to a picture data in the case of a recorded picture which should be hidden from others' eyes and inhibited from being reproduced by replacably transferring and storing in turn a picture data of other recorded picture to be reproduced to a prescribed storage area in a regenerative information storage area stored with a picture data of such a recorded picture as decided to be unnecessary for reproducing. CONSTITUTION:A recorded picture stored, for instance, in a storage area (#4) in a picture data storage area 45 in the regenerative information storage area 40 is decided by the operator to be unnecessary for reproducing, and this effect is inputted as a data by an operation input part 208. At this time, a CPU 212 refers to management information stored in a management information storage area of a nonregenerative information storage area 42 of a picture storage medium 12, and retrieves a nonrecorded area in a picture data storage area 47 is retrieved, and then the picture data decided as unneccessity of reproducing is transferred from the storage area (#4) and stored in this retrieved storage area. By this method, the unnature of access to a picture data in the case of its recorded picture which should be hidden from others' eyes and inhibited from being reproduced can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a still image reproducing apparatus for reproducing a desired still image recorded in a predetermined format on an image recording medium such as an optical disk or a digital audio tape fDAT+.

1. In this type of conventional still image recording and reproducing apparatus, among still images recorded on an image recording medium such as an optical disk, recorded images that are not to be seen by others during reproduction are reproduced as reproduction management information. By setting a password, the image cannot be played back by anyone who does not know the playback password.

By the way, when a long tape such as a digital audio tape is used as an image recording medium, image data is usually recorded in units of one screen in a storage area in the longitudinal direction of the tape. Therefore, when image data of recorded images for which a playback password is set and image data of recorded images for which a playback password is not set are mixed and stored in the storage area of an image recording medium, continuous playback of recorded images is not possible. If you do so, the storage area where the image data of the recorded images for which the playback password is set will be accessed by skipping, so when viewing the recorded images on the display screen of the monitor device, it will be difficult to access the image data of the recorded images. There was a problem that it caused unnaturalness.

The present invention was made in view of these circumstances, and
Continuous playback of recorded images when a method is taken to prohibit the playback of recorded images of multiple screens recorded on a long image recording medium such as a digital audio tape that you do not want others to see. An object of the present invention is to provide a still image reproducing device that eliminates the unnaturalness of accessing image data.

According to the present invention, in a still image reproducing device that reproduces a desired recorded image from an image recording medium on which recorded images of a plurality of screens are recorded, the image recording medium stores information related to image reproduction. and a non-reproduction information storage area in which information related to non-reproduction images is stored, and the reproduction information storage area stores management information related to the recorded image corresponding to each recorded image. The non-reproduction storage area consists of a first management information storage area in which the image data of each recorded image is stored, and a first image data storage area in which the image data of each recorded image is stored. It relates to the recorded image for which reproduction inhibition has been instructed among the recorded images stored in the storage area.

It consists of a second management information storage area in which management information including a playback password is stored, and a second image pig storage area in which image data of the recorded image for which reproduction inhibition has been instructed is stored in units of one screen; The playback device includes manual means for inputting instructions regarding image playback, records predetermined management information in first and second management information storage areas, and records data stored in the first image data storage area. A recording device that transfers and records image data of a recorded image that is instructed not to be reproduced among the images to a second image data storage area, an output device that outputs an image to be reproduced to a monitor device, and an output device that responds to the input device. reads management information and image data from a first management information storage area and a first image data storage area of the image recording medium, and outputs the read image data according to the read management information. and a control means for controlling the recording means, the control means storing the image data of the recorded image whose reproduction is instructed to be inhibited by the input means in the first image data storage area. The image data is transferred from a predetermined storage area to a predetermined storage area in a second image data storage area and stored therein, and information regarding non-reproduction of the image data is stored in the second management information storage area; The recording means is configured to transfer and store other image data to be reproduced in a storage area in the first image data storage area where the image data transferred to the second image data storage area is stored. It is something to control.

DETAILED DESCRIPTION Next, embodiments of a still image recording and reproducing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 shows the configuration of an embodiment of a still image recording device. In the figure, an image recording medium 12 is connected to the still image recording device IO via a connector 14.

The image recording medium 12 is, for example, a digital audio chip in this embodiment, and digital image data is recorded on this image recording medium 12.

The still image recording device IO includes an A/D converter 100, an encoding circuit 102, a frame memory 104, and an operation input section 10.
6 and a control circuit 108.

The A/D converter 100 converts the video signal input from the input terminal 16 into digital image data.

The encoding circuit 102 performs color separation and compression encoding of the image data output from the A/D converter 100.

The frame memory 104 stores one frame of image data output from the encoding circuit 102.

The operation input unit 106 is a means for manually issuing various recording instructions regarding image recording to the control circuit 108. Note that this instruction includes a personal identification number, personal identification code, etc. as a playback password.

The control circuit 108 controls the signal processing timing of the encoding circuit 102, the storage timing in the frame memory 104,
and controls writing of image data to the image recording medium 12.

As shown in FIG. 3, the image recording medium 12 has a reproduction information storage area 40 in which information related to image reproduction is stored, and a non-reproduction information storage area 42 in which information related to non-reproduction of images is stored. have.

The reproduction information storage area 40 is a management information storage area tTOcI) 44 in which management information related to reproduction of still images is stored.
, the image data of still images of multiple screens is displayed in units of one screen,
For example, it is composed of an image data storage area 45 that stores data for n screens.

Further, the non-reproduction information storage area 42 is the reproduction information storage area 40.
A management information storage area fTOcn 146 in which management information related to a non-reproduction image among the recorded images stored in the image data storage area 45 for which reproduction inhibition has been instructed by the operation input unit 106 is stored. , and an image data storage area 47 in which the image data of recorded images for which reproduction inhibition has been instructed is stored in units of one screen. In this embodiment, the storage capacity of the image data storage area 47 is sufficient if it has a storage capacity for storing image data for n screens, but is not limited to this, and may have a storage capacity of less than or more than that. It may be capacity.

Management information storage area fTOcI in the reproduction information storage area 40
+44 is provided with a storage area in which management information for n screens that can be stored in the image data storage area 42 at the time of image recording is stored. Management information storage area (TOCI) 44
For example, the management information for one screen stored in
As shown in A), the image number (IN) 50, the start address where the image data is stored (MA151), the date when the image data was first recorded fFR152, and the year and month when it was last accessed for playback. From the following data: date (LA153, title of recorded image (Tr154), number of accesses to reproduce the image data FAT+ 55g, and write prohibition flag fWFl 56 that indicates whether or not writing of image data is prohibited. Each of the configured data is stored in the management information storage area fTOcI for each screen.
+44.

Also, the management information storage area fT in the non-reproduction information storage area 42
The management information for one screen stored in the image data storage area 47 is the image number flNl 60 of the recorded image stored in the image data storage area 47, and the start address fMA) of the storage area where the image data of the recorded image is stored. 61゜Date when the image data was first recorded fFR162, date when it was last accessed for playback fLA163, title of the recorded image fTIl 64, playback password IRPI required to playback the recorded image 65, the image The number of accesses fATl 66 for reproducing data, a reproduction prohibition flag 1RFl 67 indicating whether or not to prohibit reproduction of the recorded image, and write prohibition indicating whether or not writing of image data is prohibited. The flag (consists of each data of the WFI 68). Each of these data is stored in the management information storage area fTOcI 1146 on a screen-by-screen basis.

Note that, as will be described later, when image data of a recorded image stored in the image data storage area 45 is transferred to and stored in a predetermined storage area of the image data storage area 47 during image data editing, the management information storage area The management information of the recorded image stored in the storage area 44 is deleted, and the management information of the recorded image is newly written to the management information storage area 46.

In such a configuration, when a video signal is input from the input terminal 16, this video signal is converted into digital format image data by the A/D converter 100, and the human operator unit 1
In response to a recording instruction input from 06 to the control circuit 108, the encoding circuit 102 performs color separation and compression encoding of this image data under the control of the control circuit 108. Furthermore, one frame of image data output from the encoding circuit 102 is stored in the frame memory 104.

Then from control circuit 108 address line 110 . The address of the image data storage area 45 in which image data of a still image to be recorded on the image recording medium 12 is stored is specified via the connector 14, and the image data of one screen of still images is stored in a frame in a predetermined storage area. The image is stored in the image recording medium 12 from the memory 104.

Furthermore, address lines 110 . control line 11
2. Management information related to playback of recorded images and address data of a storage area where the management information is stored are sent to the image recording medium 12 via the connector 14. Management information related to the reproduction of this recorded image, that is, the already mentioned image number TIN150 and the start address fMA151 where the image data of the recorded image is stored in a predetermined storage area of 144.
．． Date when the image data was first recorded fPR+52
, date of last access for playback fLA15
3. The title of the recorded image fTI154, the number of accesses to play the image data of the recorded image fAT1
55 and a write prohibition flag (WF156) that indicates whether or not writing of image data is prohibited.

A calendar is provided in the control circuit 108 to manage the current date and time of the device. The control circuit 108 obtains the current date and time from this calendar and records the recording date fFR).
52 records the recording date of the image data.

Next, FIG. 1 shows the configuration of an embodiment of a still image reproducing device. In the figure, the still image reproducing device 2o has a connector 1.
An image recording medium 12 is connected via 8.

The still image reproducing device 2o mainly uses a frame memory 200.
, a decoding circuit 202 , a D/A converter 204 , a signal processing circuit 206 , an operation input section 208 , and a control circuit 210
It is composed of.

The decoding circuit 202 is a circuit that decompresses and decodes one frame of compression-encoded image data read out from the frame memory 202.

The signal processing circuit 206 converts the analog signal converted by the D/A converter 204 into a standard television signal such as an RGB signal or an NTSC signal.

The operation input unit 208 is a means for manually issuing instructions regarding image reproduction to the control circuit 210. This instruction includes a password, a password, etc. as a playback password.

The control circuit 210 performs address designation in the image recording medium 12 and frame memory 2 when reading image data from the image recording medium 12 based on instructions from the human operator unit 208.
Control of image data read timing in 02, decoding circuit 202.0/A converter 204. Signal processing circuit 20
6, and manages and calculates management information.

The control circuit 210 includes a CPU 212, an input/output interface 214, a RAM 216, a ROM 218, and a timer 220. The timer 220 measures time and has a calendar function to generate the current date and time of the device.

Also, CPt1212 and human output interface 214
, RAM 216 , and ROM 218 are connected to each other by a pass line 222 .

The signal processing circuit 206 of the still image reproduction device 20 is connected to the monitor device 30 via the connector 22.

In this configuration, from the operation input unit 208 to the control circuit 210
When an instruction to reproduce a desired recorded image on the image recording medium 1 is input to the input/output interface 214, the image recording medium 1 is
Management information related to the reproduction of the recorded image to be reproduced is read out from the management information storage area ITOc I 144 in the reproduction information storage area 40 at 2 to the RAM 216 via the input/output ink face 214.

Next, the CPU 212 refers to the management information regarding reproduction of the recorded image stored in the RAtl 216 and causes the frame memory 200 to read one frame worth of image data of the corresponding recorded image.

Next, this image data is decompressed and decoded by a decoding circuit 202, and converted into an analog signal by an 0/A converter 204. This analog signal is processed by the signal processing circuit 206 to a predetermined ff! The image signal is converted into a television signal, and a recorded image represented by this image signal is displayed on the screen of the monitor device 30.

Furthermore, if you wish to view management information regarding the playback of the recorded image read into the RAM 216, by operating the operation input unit 208, the management information is transferred to the input/output interface 214 and the No. 11 circuit 2 under the control of the CPt 1212.
02. D/A converter 204 i3 and signal processing circuit 20
6 to the monitor device 30 and displayed on the display screen of the monitor device 30.

In this manner, the operator selects the management information storage area tii! of the reproduction information storage area 40 of the image recording medium 12! (TOCI +
It is necessary to check the management information corresponding to each recorded image stored in 44 and the recorded image on the display screen of the monitor device 30 one screen at a time, and to prohibit the reproduction of the recorded image by another person. Or, it is determined whether there is a need to temporarily reproduce the recorded image. For example, if the operator selects the playback information storage area 4 shown in FIG.
Storage area in the image data storage area 45 within 0 (#4
) is determined to be unnecessary for reproduction, and inputs data to that effect through the operation input unit 208.

At this time, the CPU 212 refers to the management information stored in the management information storage area of the non-reproduction information storage area 42 of the image recording medium 12 and records unrecorded or rewritable data in the image data storage area 47. - Search for an overlapping area and transfer the image data of the recorded image that is determined not to be reproduced to the storage area (for example, storage area f#i) from the storage area (#4) in the image data storage area 45 and store it. do. After the image data is thus transferred from the image data storage area 45 in the reproduction information storage area 40 to the image data storage area 47 in the non-reproduction information storage area 42, new data is transferred in response to an instruction from the operation input unit 208. Management information storage area td fTOc II) in the non-reproduction information storage area 42
6 stores the previously described management information related to the recorded image, and also stores the management information of the recorded image previously stored in the management information storage area fTOcI 144 jl 15 in the reproduction information storage area 40 and the image data storage area 45. Management information and image data will be deleted. Next, in the storage area (#4) of the image data storage area 45 in the reproduction information storage area 40, the image data of the recorded image that has been stored in the storage area (#5) is transferred again to the storage area (#5). The image data previously stored in the storage area (#6) is sequentially transferred in the same manner. The arrangement of the image data after the image data has been edited in this way is shown in Figure 5 (B
In addition to the management information stored in the management information storage area 44 as shown in FIG. fRP165 is set.

When the playback password fRP165 is set, a playback prohibition flag (key) 67 is automatically set. In this case, input the playback password + RPl 65 from the human operator section 208, and use that data and the image recording medium 1 in advance.
If the playback password stored in 2 matches, the 8 self-recorded image can be played back.

Note that in this embodiment, when a long image recording medium such as DAT is used, when editing the image data of a recorded image stored in the reproduction information storage area, it is determined that reproduction is not necessary at the present time. The image data of the recorded image is transferred to and stored in the non-reproduction information storage area, and the image data of the recorded image that was determined not to be reproduced is stored in a predetermined storage area of the reproduction information storage area for other reproduction. The image data of the recorded images to be recorded are sequentially transferred and stored. However, the present invention is not limited to this, and even though a search for image data reproduction has been performed more than a predetermined number of times among the recorded images stored in the reproduction information storage area,
For recorded images whose image data has not been accessed even once, the image data may be transferred from the reproduction information storage area to the non-reproduction information storage area and stored therein.

In this case, image data of other recorded images to be reproduced is sequentially transferred and stored in a predetermined storage area in the reproduction information storage area where the image data was stored.

Effects As explained above, in the present invention, in a still image reproducing device that reproduces a desired recorded image from an image recording medium on which multiple screens of recorded images are recorded, the recorded images stored in the reproduced information storage area are When editing the image data, the image data of the recorded image that is determined not to be reproduced is transferred and stored in the non-reproduced information storage area, and the image data of the recorded image determined not to be reproduced is stored. Since the image data of other recorded images to be reproduced is sequentially transferred and stored in a predetermined storage area of the reproduced information storage area, it is possible to transfer the image data of other recorded images to a predetermined storage area of the reproduced information storage area. The unnaturalness of accessing image data of recorded images that occurs in conventional devices is resolved when a method is taken to prohibit image playback of recorded images that are not desired to be seen by others among recorded images on multiple screens. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a still image reproducing device to which the present invention is applied; FIG. 2 is a block diagram showing the configuration of an embodiment of a still image recording device to which the present invention is applied; FIG. 3 is an explanatory diagram showing an example of the recording format in the storage area of the image recording medium in FIGS. 1 and 2. FIG. 4 is the data stored in the management information storage area of the recording format in FIG. 3. FIG. 5 is an explanatory diagram showing the arrangement state of data before and after editing of image data in the recording format of the storage area of the image recording medium shown in FIG. Explanation of - of main part 0 12゜20゜0 00 102. 104.200. 106.2CJ8. 108.21 (1. 2a2. 204, , . 2 (+6, , .), still image recording device, image recording medium, still image reproducing device, monitor device, AID converter encoding circuit, frame memory, operation input unit control circuit, decoding circuit, D/A converter, signal processing circuit

Claims (1)

[Scope of Claims] A still image reproducing device that reproduces a desired recorded image from an image recording medium in which recorded images of a plurality of screens are recorded, wherein the image recording medium has reproduction information in which information related to image reproduction is stored. It has a storage area and a non-reproduction information storage area in which information related to non-reproduction images is stored, and the reproduction information storage area stores management information related to the recorded image corresponding to each recorded image. and a first image data storage area in which image data of each recorded image is stored in units of one screen, and the non-reproduction storage area is in the first image data storage area. a second management information storage area in which management information including a playback password related to a recorded image for which playback is instructed to be prohibited among the stored recorded images; and an image of the recorded image for which playback is instructed to be prohibited; a second image data storage area in which data is stored in units of one screen; the playback device comprises: an input means for inputting instructions regarding image playback; and the first and second management information storage areas. Predetermined management information is recorded in the image data storage area, and the image data of the recorded image that is instructed not to be played out of the recorded images stored in the first image data storage area is transferred to and recorded in the second image data storage area. recording means; output means for outputting image data to be reproduced to a monitor device; and management information and output means from a first management information storage area and a first image data storage area of the image recording medium in response to the input means. a control means for reading image data, outputting the read image data to the output means according to the read management information, and controlling the recording means, the control means comprising: the input means; The image data of the recorded image for which reproduction is prohibited is transferred from a predetermined storage area in the first image data storage area where the image data is stored to a predetermined storage area in the second image data storage area. and storing information regarding non-reproduction of the image data in the second management information storage area, and storing the image data transferred to the second image data storage area in the first image data storage area. A still image reproducing apparatus characterized in that the recording means is controlled so as to transfer and store other image data to be reproduced in a storage area that has been previously reproduced.