JP2885286B2 - Playback device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a reproduction apparatus for an image information recording medium. [Related Art and its Problems] A still video playback device is an example of such a playback device. This apparatus uses a magnetic disk for recording a still image on each concentric track, which is called a still video floppy. When trying to reproduce each image recorded on the still video floppy, the conventional reproducing apparatus displays each image on a monitor screen by designating each track number,
You have to take steps to find the desired image. Therefore, for example, when a plurality of images recorded on one video floppy are to be sequentially displayed on a monitor device in a desired order in advance, it is necessary to check each track on which each image is recorded. Must. Further, a reproducing apparatus having a function of reducing a plurality of images recorded on a recording medium and displaying the reduced images collectively on a monitor device is known. However, in this apparatus, it is necessary to select a desired image from the plurality of images. It only has the function of. As described above, in the conventional still video reproducing apparatus, it takes a long time and effort to find a target recorded image when setting a desired reproducing order, and there is a problem in operability. Such a problem may occur not only in the still video system but also in other playback devices such as a VTR. Therefore, an object of the present invention is to provide a reproducing apparatus that can set the reproducing order of a plurality of images easily and in a short time. [Means for Solving the Problems] A playback device according to the present invention is a playback device that plays back a recorded image from a recording medium capable of recording image information, and stores image information read from the recording medium in a predetermined format. Supply means for displaying on the monitor means in the form of, a designation means for designating a reproduction mode, a setting means for program setting the reproduction order of a plurality of images displayed on the monitor means, a program setting by the setting means, Control means for controlling the supply means in accordance with the mode designation of the designation means. The control means enables the setting operation by the setting means in accordance with the mode designation by the designation means, and performs the program setting. After the plurality of images are simultaneously displayed on the monitor means in an array corresponding to the order based on the plurality of images, the plurality of images are sequentially displayed in the order based on the program. It is displayed. [Operation] By the supply means, a plurality of recorded images on a recording medium can be confirmed at once (or a small number of times of two or three), and a recorded image to be observed can be easily found. Further, the order of the program reproduction can be visually confirmed by the setting means and the display means. Therefore, the reproduction order of a plurality of images can be set easily and in a short time. Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic block diagram of the embodiment. In FIG. 1, reference numeral 10 denotes a CP for controlling each unit of the illustrated apparatus.
U. The CPU 10 has a confirmation mode in which a plurality of images recorded on the disk 12 are reduced and simultaneously displayed on a monitor, and a designated image reproduction mode in which an image of a designated track is reproduced and displayed on a monitor. Furthermore, the mode is divided into a manual mode in which an image of a track number designated by the operator is reproduced in a field or a frame, and a program mode in which an image of a series of track numbers is reproduced and displayed in the designated order. In the present embodiment, a method of setting a program in the confirmation mode will be mainly described. Reference numeral 12 denotes a still video floppy, which records 25 frame images on 50 tracks. The disk drive 14 rotates the disk 12 at a predetermined speed under the control of the CPU 10. The reproduction head 16 reproduces a video signal of a specified track on the disk 12 according to a head feed signal from the CPU 10. The FM demodulation circuit 18 FM-demodulates the signal from the reproducing head 16 to form a reproduced image signal. When the confirmation mode is set by operating the keyboard 36,
The switch 20 is connected to the contact 20a side by the CPU 10, and the FM
The output of the demodulation circuit 18 is applied to a reduction circuit 22 via a switch 20. In the example shown in the figure, the reducing circuit 22 converts the reproduced image vertically and horizontally 1 /
It is reduced to 5 (and therefore 1/25 in area). This reduction is
For example, by thinning or time compression. 24 is an image memory having a storage capacity for one field, 26
Is a memory control circuit that controls the operation and address of the image memory 24 under the control of the CPU 10. In the check mode in the present embodiment, the CPU 10 sequentially reproduces the recording signals of the odd-numbered tracks on the disk 12. Since the reduction circuit 22 reduces each reproduced image to 1/25, the image memory 26 can store 25 reduced images. FIG. 2 is a diagram schematically showing a storage position when 25 reduced images are stored in the image memory 24. Second
The figure is also a diagram showing the arrangement of each image on the playback monitor screen. The memory control circuit 26 controls the address of the image memory 24 so that the 25 field image signals reduced by the reduction circuit 22 are stored in the image memory 24 as shown in FIG. The image memory 24 digitally stores the image data,
The A / D conversion and the D / A conversion for that are not related to the present invention, so that illustration and description are omitted. It is preferable that track numbers are simultaneously displayed on the playback monitor screen to indicate on which track each image is recorded. 28 is a character generator for that purpose. The character pattern signal output from the character generator 28 is superimposed on the read signal from the image memory 24 in the adder 30. The output of the adder 30 is applied to a TV signal processing circuit 32, where it is converted into a television signal and applied to a monitor device. On the screen of the monitor device 34, 25 reduced images are simultaneously displayed as shown in FIG. The numerical value at the lower right of each reduced image is the corresponding track number of the disk 12. For displaying such a track number, the pattern may be written in a corresponding portion of the image memory 24 without using the character generator 28. In this confirmation mode, after the necessary reduced image data is stored in the image memory 24, the data stored in the image memory 24 is repeatedly read and displayed on the monitor device 34 until the mode shifts to the designated image reproduction mode. Become. When the designated image playback mode is set by operating the keyboard 36, the switch 20 is connected to the contact 20b side, and the playback image (field playback or frame playback) is displayed on the entire screen of the monitor device 34. As described above, the keyboard 36 is provided with operation switches for giving various instructions to the CPU 12 such as designating the operation mode of the CPU 12 and a reproduced image, and details thereof are shown in FIG. 40
Are up, down, right, and left shift keys for changing the position of the cursor displayed on the screen. The cursor on the screen is controlled by the CPU 10 so as to be displayed on the screen by the character generator 28. Reference numeral 41 designates a numeric key for specifying the number of a track to be played, 43 designates a playback order of images designated by the numeric key 41 or each shift key 40 in a program designation mode described later,
An EXE (execute) key for reproducing images in the order set in the designated mode. 45 is a key for designating the confirmation mode, 47 is a key for designating the designated screen playback mode. In the designated screen playback mode set by this key 47, the track of the number designated by the ten keys 41 is used. The image is displayed on the monitor 34. 49 is a program designation mode key for setting a program designation mode to be described later, 51 is a designation end (END) key for indicating that designation has been completed in the program designation mode, and 53 is a playback order designated in the program designation mode. OK key to confirm and enter OK or not, 55
Is the next screen key. In the above description, the 25 images recorded on the disk 12 are simultaneously displayed on the monitor device 34. Of course, the recorded images are divided into a plurality of grooves, and the monitor device 34 is provided for each group.
May be displayed. Next, a procedure for realizing the program-type designated screen reproduction mode will be described. FIG. 3 shows the flowchart.
When the program is started at power-on or the like and the program designation mode is set by the designation key 49, first, the above-described confirmation mode is executed, and the recorded image of the disk 12 is sequentially reduced by the reduction circuit 22 while sending the track thereof. And stored in the image memory 24. Image memory 24 for 25 field images
At the stage where the images are stored, the respective images are displayed on the monitor device 34 together with the track numbers as shown in FIG. 2 (S1). After the step S1, the screen to be played back in full is designated by the numeric keypad at the track number or the position where the cursor is displayed on the screen from the keyboard 36. At the time of this designation, it is preferable that the track number of the corresponding image blinks or is displayed in a specific color for confirmation. In the next step S3, the CPU 10 displays a number indicating the playback order of the image thus designated at the time of program playback, for example, next to the track number. Steps S2 and S3 are repeated until the designation of the reproduced image is completed (S3). When the designation of the reproduction image is completed and the designation end key 51 is turned on, the recorded image on the disk 12 is reproduced again in the reproduction order, reduced by the reduction circuit 22, and stored in the image memory 24 (S5). That is, the displayed images are rearranged in the order of the set program reproduction. If the reproduction order is acceptable, the operator turns on the OK key 53, thereby shifting to the program reproduction mode (S6, S7), and displaying the designated images in full size on the monitor device 34 in order. That is, at this time, the switch 20 is switched to the contact 20b side. The switching of the playback image at that time is automatically performed at a certain interval,
Alternatively, it is performed by operating the next screen key of the keyboard 36. S6
If there is any inconvenience in the reproduction order, the process returns to step S2 and the designation is repeated. In the case of the manual playback mode, after S1 and S2, the playback head is moved to the track of the designated image, and the recorded image is played back in full size (that is, the switch 20 is connected to the contact 20b). After the observation, steps S1 and S2 are repeated again. Further, a disk presence / absence detection circuit 36 for detecting the presence / absence of the disk 12 is provided, and the presence / absence of the disk 12 is detected by the circuit 36, so that the confirmation mode is activated each time the disk 12 is inserted into the drive device. If you do, disk 12
Can be easily checked and extremely convenient. The disk presence / absence detection circuit 36 detects the presence / absence of the disk 12 from the outputs of the photocouplers 36A and 36B. Needless to say, when reproducing the recorded image of the disk 12 at full size, the image memory 24 is bypassed, that is, the output of the FM demodulation circuit 18 is added to the adder 30 or the TV signal processing circuit.
32 may be directly applied. In this embodiment, a disk-shaped recording medium is used.
The recording medium of the present invention may be in the form of a tape,
It may be a semiconductor memory. Although the image memory 24 is used to supply a plurality of images to the monitor device, the present invention is not limited to this, and a plurality of images may be supplied from the recording medium to the monitor device by a multi-head. As the setting means for program reproduction, the ten keys or each shift key shown in FIG. 4 and the EXE key were used.
Other switch means, for example, a light pen for detecting a bright spot on a monitor, may be used. In this embodiment, a plurality of images on the monitor are rearranged in order to display the setting state of the setting unit. However, the setting state of the setting unit may be displayed by a numeral or the like. [Effects of the Invention] As can be easily understood from the above description, according to the present invention, the contents of the images recorded on the recording medium can be checked in a list, and further, the reproduction order can be checked, so that it is extremely practical. It is convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, FIG. 2 is a diagram showing a state of a reproduced image or an image stored in an image memory in a confirmation mode, and FIG. FIG. 4 shows an example of a keyboard for the operation when performing the operation. 10 ... CPU, 12 ... Magnetic disk, 14 ... Disk drive device, 16 ... Reproduction head, 18 ... FM demodulation circuit, 20 ... Switch, 22 ... Reduction circuit, 24 ... Image memory, 26 ... ... Memory control circuit, 28 ... Character generator, 30 ...
... Adder, 32 ... TV signal processing circuit, 34 ... Monitor device,
36 ... keyboard

Continuation of front page       (56) References JP-A-60-22885 (JP, A)                 JP-A-58-120382 (JP, A)                 JP-A-61-99986 (JP, A)                 JP-A-62-179285 (JP, A)                 JP-A-55-75380 (JP, A)                 JP-A-59-8182 (JP, A)                 JP-A-60-68784 (JP, A)                 JP-A-61-117986 (JP, A)                 Showa 60-9382 (JP, U)

Claims (1)

(57) [Claims] What is claimed is: 1. A reproducing apparatus for reproducing a recorded image from a recording medium capable of recording image information, comprising: supplying means for displaying image information read from the recording medium on a monitor means in a predetermined manner; Means, setting means for program setting the reproduction order of a plurality of images displayed on the monitor means, and control means for controlling the supply means in accordance with the program setting by the setting means and the mode designation of the designation means. The control means enables the setting operation by the setting means in accordance with the mode designation by the designation means,
A reproducing apparatus, wherein a plurality of images are simultaneously displayed on the monitor means in an arrangement corresponding to an order based on the program setting, and then the plurality of images are sequentially displayed in an order based on the program. 2. The reproduction apparatus according to claim 1, wherein the reproduction order is displayed by rearranging a plurality of images displayed on the monitor means on the monitor means according to the program.