JPH02214980A - Retrieving device for video information - Google Patents

Abstract

PURPOSE:To secure the semi-real time properties by reading the moving images out of a moving image memory at a high speed to store them again in another recording medium at a high speed, reproducing this storing information at a standard speed, and releasing the original moving image memory to prepare for the next access. CONSTITUTION:A video information medium including the video information to be reproduced and displayed is taken out of an information medium store device 6 and sent to a video information medium selecting device 7 based on the index information on the video information. Then the video information medium is reproduced by a video information high speed reproducing device 8 at a high speed and then recorded to the 2nd video media of the video information recording/reproducing devices 13, 23 and 33 at a high speed. These recorded video information are instantaneously reproduced at a standard speed and displayed on the display devices 12, 22 and 32 of the retrieving terminals 1-3 respectively. The original video information medium is released when the desired video information is recorded to the 2nd video information medium. Thus the released information medium is sent back to the device 6 and prepares for the next on-line retrieval. Thus the on-line retrieval is carried out via the video information medium.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a video information retrieval device, and more particularly, to a video information retrieval device for providing selected video information to an unspecified number of people through an online information system. Regarding a search device.

BACKGROUND OF THE INVENTION A conventional online information system is an extremely effective system for providing desired information to an unspecified number of people in real time. This is a system in which information is stored in a computer at the center, and those who wish to use the information stored in the center computer can perform a search from a remote terminal over a telephone line, etc., and obtain the search results through the same telephone line. be. In this case - if many people access this center computer at the same time, 3
Depending on the order of page access, the center computer processes questions or processes them in a time-sharing manner, but because the speed of information retrieval is extremely fast, only users can use this center computer exclusively. It has the same effect.

Problems to be Solved by the Invention However, this means that even if the information stored in this online information system is text information, numerical information, or image information, it is still image information, and the information is moving image information. In this case, the moving image reproducing device is monopolized while the moving images resulting from the search are being sent out, and even if another person attempts to use the moving image retrieval system, it will be in use. This means that, for example, an unspecified number of people cannot use CA'fV & Stem to use moving images stored in the center's moving image storage device in real time.

In order to solve these conventional problems, the present invention reads moving images stored in a moving image storage device at high speed, temporarily stores them in another recording medium at high speed, and stores the moving images stored in a moving image storage device at high speed. By reproducing the stored information at standard speed, the original moving image storage device is freed up and prepared for the next access, thereby ensuring near real-time performance.

Means for Solving the Problems The technical means of the present invention to solve the above problems are: a search device for searching index information of video information to be reproduced and displayed; a medium storage device; a video information medium selection device for selectively taking out from the video information medium storage device a video information medium whose index information includes video information that you want to play; a video information medium that you want to play from the selected video information medium; A video information high-speed playback device that plays back information at high speed, a video information recording and playback device that records the high-speed playback video information at a high speed and plays back the high-speed recorded video information at a standard speed, and the video information recording and playback device. It consists of a display device that displays reproduced video information.

For production 5 page The effects of the above technical means are as follows.

In other words, when an unspecified number of people request video information, especially moving video information, through the online system at about the same time, the system will request the video information based on the index information of the video information that is initially input and that they want to play and display. A first video information medium containing the video information is selected and taken out by a video information medium selection device from a video information medium storage device that stores a plurality of media, and the video information medium is played back at high speed by a video information high-speed playback device. The video information reproduced at high speed is recorded at the same speed on a second video medium of a separately provided video information recording and reproducing device. The video information recorded on the second video medium at high speed is immediately reproduced at standard speed and reproduced and displayed on the display device. When the desired video information is recorded on the second video information medium, the original first video information medium is released and returned to the original video information medium storage device, and is prepared for the next online search. Ru. In this way, an online search on the video information medium is performed.

67\--Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The figure is a system configuration diagram in a first embodiment of the present invention. In the figure, 1.2.3 is a search terminal installed at a remote location to search and display video information, and each one is an operating section such as a keyboard] 1.21.31 and a display such as a CRT or liquid crystal display Consisting of Section 12.22.32. Reference numeral 4 denotes a search device 4 that is placed in the online video information providing center and searches for information in response to requests from the search terminals 1.2.3. Reference numeral 5 denotes a video information medium, for example, a disk-shaped capacitive type, an optical disk type, or a magneto-optical disk type, on which moving images or still images are recorded. Reference numeral 6 denotes a video information medium storage device that stores a plurality of the video information media 5. 7 is a video information medium selection device which selects one video information medium 5 containing the desired video information from the video information medium storage device 6 based on the search results of the search device 4, This is a device that sets the number to 8. The video information high-speed playback device 8 plays the selected and set first video information medium 5, for example, in the case of an optical disc, by using a laser pre-recording speed, several times the standard playback speed, - N times the speed for boat fishing. It is played back. 13.23.33 is a video information recording and reproducing device, which includes a second video information medium. This second video information medium is composed of an optical disk or a magneto-optical disk, and has a function that allows video information to be recorded and erased many times using a laser beam. The video information reproduced by the video information high-speed reproducing device 8 at a high speed N times the integral speed is the video information recording and reproducing device〕3.2
3.33, and is also recorded at N times higher speed. The video information recorded at high speed by the video information recording and reproducing device 13.23.33 is reproduced at a standard speed according to an instruction from the search terminal 1.2.3 and displayed on the display unit 12.

Next, the operation will be explained. Now, let us consider a case where search requests including video information are received almost simultaneously from search terminals 1, 2, and 3 in this order. The search device 4 first searches for predetermined character information such as bibliographic items in accordance with the search request from the search terminal 1 and outputs it to the search terminal 1 via an online line. At the same time, the video information medium selection device 7 selects the video information medium 5 on which the corresponding video information is recorded from the video information medium storage device 6 according to the video information index in the search request, and the video information high-speed playback device 8 selects the video information medium 5 on which the corresponding video information is recorded. The data is reproduced at high speed N times and recorded in the video information recording/reproducing device 13 at high speed. The video information recorded at high speed in the video information recording and reproducing device 13 is reproduced on the display section 12 at the request of the search terminal 1. In this way, information corresponding to the search request from the search terminal 1 is displayed on the display section 12 of the search terminal.

When the recording of the first video information based on the search request from the search terminal 1 is completed in the video information recording and reproducing device 13, the video information medium 5 that was selectively supplied to the video information high-speed reproducing device 8 is returned to the video information medium storage device 6. and prepares for the next video information playback request. The search device 4 receives the search request from the search terminal 2 as the second search request, selects the video information medium 5 on which the corresponding video information is recorded from the video information medium storage device 6, and performs the same process as described above. The operation performs high-speed recording on the video information recording/reproducing device 23. The video information recorded at high speed is reproduced and displayed on the display section 22 of the search terminal 2.

During this time, the requested text information 12 is searched by the search device 4, and is sent to the display unit 2 of the search terminal 2 via the online line.
2. When the second video information is completely recorded in the video information recording and reproducing device, the search device 4 receives the search request from the search terminal 3 as a third search request, and in exactly the same manner, the corresponding video information is recorded as the video information. In this way, video information is recorded in the recording/reproducing device 33 and reproduced and displayed on the display unit 32 of the search terminal 3.
After being recorded in 23.33, the online line will no longer be monopolized to search and display video information. In addition, since recording to the video information recording and reproducing device is performed at N times the standard playback speed in response to a request from one search terminal, the waiting time of the search terminal described later is short, and quasi-real-time searches can be performed on 10 pages in a row. I can.

Effects of the Invention As described above, the present invention records video information on the post side at high speed in a separately provided video information recording and reproducing device in response to a search request from a search terminal in an online system, and reproduces the video information on the terminal side. This prevents the online line from being monopolized for long periods of time by searching and reproducing video information, and allows a large number of terminal users to search for information involving image information in near real time with almost no waiting time. It becomes possible to do so.

[Brief explanation of the drawing]

The figure is a block diagram showing the overall configuration of a video information retrieval device according to the present invention. 1.2.3... search terminal, 4... search device, 5 video information medium, 6... video information medium storage device, 7... movie information medium selection device, 8 video information high speed playback device, 11.
21.31...Operation unit, 12.22.32...Display unit, 13.23.33...Video information recording and reproducing device.

Claims (3)

[Claims] (1) A search terminal that instructs a search request for information to be searched;
a search device that searches for predetermined information in response to the search request;
A video information medium storage device that stores a plurality of video information media on which video information is recorded; a video information medium selection device that selects a video information medium containing video information to be reproduced from the video information medium storage device based on the search request; and the selection device. A video information high-speed playback device that plays back video information desired to be played back from a video information medium at high speed, and a video recording and playback device that records the high-speed playback video information at high speed and plays back the high-speed recorded video information at a standard speed. and means for displaying the video information reproduced by the video recording and reproducing device on a display unit of the search terminal. (2) The video information retrieval device according to claim 1, wherein the video information medium is a disk-shaped medium. (3) The video information retrieval device according to claim 1, wherein the video information medium is a tape-shaped medium stored in a cassette.