JPS63209381A - Still picture reproducing device with sound - Google Patents

Abstract

PURPOSE:To reproduce a desired picture with sound by previously storing picture numbers which associate with optional pictures among reproduction pictures on a recording medium according to the order of reproduction and continuing the optional pieces of the still pictures. CONSTITUTION:The picture numbers associating with the desired picture among the reproduction pictures in a video disk 1 are previously and sequentially stored according to the order of the reproduction in a data memory 15 through an input part 16. Then video information associating with the picture numbers stored in the memory 15 among the video information from a video demodulation circuit 7 read out from the disk 1 is written in a video memory 8 according to the order of memory. Reproduction video information is obtained by sequentially and repeatedly reading out the written video information. The audio information from an audio demodulation circuit 5 is used for reproduction audio information without any operation. Thus the desired picture can be reproduced with the sound by continuing the optional pieces of the still picture.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an apparatus for instantly reproducing recorded information that is capable of reproducing still images with audio.

BACKGROUND ART A recording medium, for example, a video memory capable of storing at least one field of video information obtained from a video disc, and outputting audio information read from the video disc sequentially as playback audio information,
A system for reproducing still images with audio by writing video information corresponding to a predetermined image into a video memory and repeatedly reading out the video information written in parentheses and outputting it as reproduced video information was proposed by the present applicant in Japanese Patent Application No. 1983- 1
It is proposed in No. 97619.

FIG. 3 shows a schematic configuration of a recorded information reproducing apparatus to which such a reproducing method is applied. In the figure, a video disc 1 is rotationally driven by a spindle motor 2, and recorded information is read by an optical pickup 3. The read output of this pick-up amplifier 3 is amplified by a preamplifier 4, the audio component of this amplified output is demodulated by an audio demodulation circuit 5 and supplied to an audio output terminal 6, and the video component is demodulated by a video demodulation circuit 7. The signal is then supplied to a video output terminal 9 via a video memory (field memory or frame memory) 8. The write clock generation circuit generates a clock locked to, for example, a horizontal synchronization signal or a color burst signal in the video signal that is the demodulated output of the video demodulation circuit 7, and uses this clock to control the timing of writing video information to the video memory 8. Clock. On the other hand, the video information written in the video memory 8 is read out based on a read clock generated in the read clock generation circuit 11 in synchronization with the reference signal from the reference signal generation circuit 12. Note that the writing of video information into the video memory 8 is performed by the control circuit (
This is carried out only during a period when a write command signal is supplied from a device (not shown).

In this configuration, video information is written into the video memory 8 by a write clock synchronized with the video signal while the write command signal is being supplied, and when the supply of the write command signal is stopped, writing of the video information is stopped.

On the other hand, reading of the video information written in the video memory 8 is always performed by a fixed frequency read clock regardless of whether the write command signal is supplied or stopped. As a result, the video information read from the video memory 8 is continuously output as reproduced video information to the monitor 13 via the video output terminal 9, and an image is displayed on the monitor 13.

The reading of recorded information from the video disc 1 is performed by normal playback operation, and if the viewer stops the write command at the desired image while watching the screen of the monitor 13, the video memory 8 stores the subsequent video information. No writing is done,
Since the video information corresponding to the desired image finally written in the video memory 8 is read out repeatedly, it is displayed as a still image on the monitor 13. On the other hand, regarding the audio information, since the playback operation of the video disc 1 remains normal playback, the read audio information is demodulated as is and is supplied to the speaker 14 via the audio output terminal 6 as normal playback audio information. , will play normally. If a write command is given again, a moving image will be obtained following the still image by normal playback from that time.

That is, by the above-described operation, a special playback effect such as inserting a still image in the middle of a normally played moving image can be obtained without interrupting audio playback.

In the still image playback device with audio configured in this way, the still image starts playing when the write command is stopped, but since the disk continues to play even during the still image playback period, the next still image you want to obtain cannot be played back. If you are unable to view the image on the monitor, and to obtain the next still image, first give a write command, play the video normally, and then stop the write command while watching this to switch to still image playback. I have no choice but to repeat the action. Therefore, only the effect of repeatedly playing still images, moving images, still images, moving images, etc. can be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a still image reproducing device with audio that can continuously reproduce an arbitrary number of desired still images with audio. purpose.

In the still image playback device with audio according to the present invention, the image numbers corresponding to desired images among the playback images on the recording medium are stored in advance in the storage means sequentially according to the playback order, and among the video information read from the recording medium. The video information corresponding to the image numbers stored in the storage means is written into the video memory according to the storage order, and the written video information is sequentially and repeatedly read out as playback video information, and the read audio information is used as playback audio information. The structure is as follows.

Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention,
In the figure, parts equivalent to those in FIG. 3 are designated by the same reference numerals.

The video signal read from the video disc 1 includes an image number such as a frame number assigned to each playback screen, and this image number is used as an address when searching for and playing back any screen. becomes. A data memory 15 capable of storing an arbitrary number of image numbers is provided, and in this data memory 15, a series of images attached to a disc to be played, for example, Based on the number, the image number corresponding to the desired image is input as the target image number in accordance with the reproduction order. The data memory 15 sequentially stores the image numbers in the order of input, starting from the first address.

The video signal which is the demodulated output of the video demodulation circuit 7 is also supplied to the data separation circuit 17. The data separation circuit 17 separates and extracts data corresponding to the image number from the video signal. This data is decoded by the decoder 18 into an image number that changes from moment to moment as the reproduction progresses, and is supplied to the match detection circuit 19. The match detection circuit 19 includes, for example, a register that stores the target image number given from the data memory 15, a register that stores the reproduced image number obtained from the disk 1, and a match circuit that monitors whether the values of both registers match. The target image number and the reproduced image number are constantly compared, and if they match, the time corresponding to one field period or one frame period (determined depending on whether the video memory 8 is a field memory or a frame memory) is The configuration is such that a write command signal is issued only when the This write command signal is sent to the mode changeover switch 20.
The signal is supplied to the video memory 8 via the video memory 8, and is also supplied to the data memory 15, and controls to advance the data storage address by one address after the writing of the video memory 8 is completed. As a result, the next image number is automatically sent from the data memory 15 to the matching detection circuit 19. By switching the mode changeover switch 20 to the N side, the mode becomes the same playback mode as the conventional device shown in FIG.
By switching to the N side, the special playback mode according to the present invention is entered.

Next, the playback operation in the still image playback device with audio having such a configuration will be explained.

First, an arbitrary number of image numbers corresponding to desired images are input from the input section 16 in accordance with the reproduction order based on a series of image numbers attached to the disc to be reproduced, and are stored in the data memory 15 in advance. I'll keep it.

Next, the mode selector switch 20 is switched to the N side to start playing the disc. Thereby, the audio information read from the disc 1 is demodulated by the audio demodulation circuit 5, and is sequentially supplied to the speaker 14 as reproduced audio information and output as normal reproduced sound. On the other hand, the video information read from the disc 1 is demodulated by the video demodulation circuit 7 and sequentially supplied to the video memory 8, while the match detection circuit 19 sets the reproduction image number obtained from the video signal as a target given from the data memory 15. Since the write command signal is not supplied to the video memory 8 until a match with the image number is detected, no video information is written to the video memory 8.

The playback operation progresses and the playback image number reaches 1 in the data memory 15.
When the coincidence detection circuit 19 detects that the image number matches the target image number stored at the address, the circuit 19 outputs a write command signal. In response to this write command signal, video information corresponding to the target image number is written in the video memory 8 for one field or one frame, and thereafter, the video information is repeatedly read out and outputted as playback video information to the monitor 13. The still image will continue to be displayed. At the same time, at the time when the write command signal output from the match detection circuit 19 disappears, that is, at the time when writing to the video memory 8 is completed, the data storage address of the data memory 15 is advanced by one address, so that the next target image number matches. It is sent to the detection circuit 19, and the next target screen is in a standby state.

When the playback operation further progresses and a playback picture number that matches the new target picture number is obtained, the match detection circuit 19 again generates a write command signal to write video information corresponding to the new screen into the video memory 8. When writing is completed, the write command is stopped and the data memory 15 is
control to advance the address by one address. During this time,
New still images continue to be displayed on the monitor 13. In addition,
By storing the first image number of the disc in the first address of the data memory 15, a continuous still image can be displayed on the monitor 13 from the beginning to the end.

The above series of operations is performed until the target image number is the data memory 15.
By repeating the number of still images stored in , an arbitrary number of desired still images can be displayed one after another on the monitor 13. Further, since the normal playback operation continues from the beginning to the end, it goes without saying that normal playback sound can be obtained from the speaker 14.

In the above embodiment, when storing the target image number in the data memory 15, the image number corresponding to the desired image is input to the input section based on a series of image numbers attached to the disc to be played. It is assumed that an arbitrary number from 16 is input according to the playback order, but the most preferable is
With the disc being played back in advance, the viewer issues a storage command each time a desired image is played while watching the video displayed on the monitor 13, thereby sequentially storing the image numbers included in the corresponding video information. It's a method.

FIG. 2 shows the configuration of a still image playback device with audio to which this method is applied.

In FIG. 2, there is a data separation circuit 21 that separates and extracts data corresponding to a picture number from a video signal output from the video memory 8, and a data separation circuit 21 that decodes the data separated and extracted into a picture number. A decoder 22 to input the image number from the decoder 22 to the input unit 16.
A gate circuit 23 for supplying data to the data memory 15 in response to a storage command from ' is newly provided, and the other configuration is the same as that of FIG. 1.

Although the data separation circuit 21 and the decoder 22 are provided separately, it is also possible to use these as the data separation circuit 17 and the decoder 18, and to make the output of the decoder 18 the input of the gate circuit 23.

In this configuration, first, the mode changeover switch 20
is switched to the N side to start normal playback operation. and,
The moving image displayed on the monitor 13 is monitored, and when the desired screen is reproduced, a storage command is issued from the input section 16-.

As a result, the gate circuit 23 becomes open, and the image number of that screen is stored as the target image number in the data memory 15. Thereafter, when a desired screen is reproduced, a storage command is issued, and an arbitrary The target image numbers are sequentially stored in the data memory 15 in accordance with the playback order of the disc. Of course, you can skip unrelated parts by fast forwarding to get to the desired screen, or in order to accurately capture the desired screen, use frame-by-frame playback or still image playback mode before memorizing the target image number. I don't mind.

Once the target image number has been stored in the data memory 15 in this way, the mode selector switch 20 can be switched to the S side and the disc can be played back normally from the beginning. You can get it.

In each of the embodiments described above, the data memory 15 and the match detection circuit 19 perform the writing process in the video memory 8 using hardware, but it is also possible to perform the writing process using software using a microcomputer.

Further, in the above embodiment, the case where the present invention is applied to a video disc player has been described, but the present invention can also be applied to a video tape recorder.

As described in detail of the invention, in the still image reproducing device with audio according to the present invention, image numbers corresponding to desired images among the reproduced images on the recording medium are stored in advance in the storage means sequentially in accordance with the reproduction order, Writing the video information corresponding to the image number stored in the storage means among the video information read from the recording medium into the video memory in accordance with the storage order;
This written video information is sequentially and repeatedly read out as playback video information, and the read audio information is used as playback audio information as it is, so new video can be created by continuously playing back only desired images as still images. Expressive effects can be obtained with audio.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment of the invention, and FIG. 3 is a block diagram showing a conventional example. Description of symbols of main parts 3... Optical pickup 5... Audio demodulation circuit 7... Video demodulation circuit 8... Video memory 15... ...Data memory 17.21...Data separation circuit 19...
・Match detection circuit

Claims (3)

[Claims] (1) It has a video memory capable of storing at least one field worth of video information obtained from a recording medium, and outputs the audio information read from the recording medium sequentially as playback audio information and corresponds to a predetermined image. A still image playback device with audio that writes video information in the video memory and repeatedly reads out the written video information and outputs it as playback video information, wherein the image number corresponds to a desired image among the playback images on the recording medium. an input means for inputting image numbers in accordance with the playback order; a storage means for sequentially storing image numbers input by the input means; and an image number stored in the storage means among the video information read from the recording medium. 1. A still image playback device with audio, comprising: write control means for controlling writing of corresponding video information into the video memory according to the storage order of the storage means. (2) The write control means detects that the means for extracting an image number from the video signal read from the recording medium matches the extracted image number and the image number stored in the storage means. and a match detecting means for detecting a match, and writing in the video memory is performed based on the detection output of the match detecting means, and the data storage address of the storage means is controlled to advance by one address. The still image playback device with audio according to item 1. (3) The input means issues an input command every time a desired image is played back while the recording medium has been played back in advance, and sequentially stores the image number included in the playback video information at that time in the storage means. A still image reproducing device with audio according to claim 1, characterized in that: