Picture processor and picture editing system

Details Picture processor and picture editing system Picture processor and picture editing system

1996-10-15

2001-04-10

Tran, Thai (Department: 2715)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000

Reexamination Certificate

active

06215949

ABSTRACT:

TECHNICAL FIELD
This invention relates to an image processing apparatus and a video editing system. More particularly, this invention relates to an image processing apparatus and a system using that in which an editing point of a real-time reproduced image is set by means of a processing apparatus of time-division task type.
BACKGROUND ART
A time code (“hour, minute, second, and a frame number” or “hour, minute, second, a frame number, and a field number”) is given to respective images which are reproduced by a video tape recorder as time information.
Generally, a video processing apparatus used for video editing captures and stores a video image at the point directed to treat by the user in a memory as an editing point image, and displays the stored editing point image and the corresponding time code as one pair.
At this time, the video processing apparatus usually either displays a pair of editing point image of normal size or plural pairs of editing point images of reduced size.
On the other hand, when a processing apparatus of time-division task type such as a workstation is used in this kind of video processing apparatus, there is the following problem.
In the workstation, the processing time is divided into plural time slices, and the respective task is conducted in each time slice.
Therefore, when a capture instruction is obtained from the user, the capture processing of images cannot be executed at once, as a result, it cannot be avoided that a time lag is generated between the time code of the image which is actually captured and the time code of the image which is to be captured.
To avoid this, it has been required to place some kind of image capturing hardware such as a time code reader.
However, there is a problem that if an image capturing hardware is placed in this manner, the image processing apparatus becomes larger and its structure becomes complicated.
DISCLOSURE OF THE INVENTION
This invention relates to an image processing apparatus and a video editing system for solving the above-described problem.
In this invention, a time-divided multi-task image processing apparatus comprises: identification code generating means for generating a first identification code; first control means for corresponding the picture information input sequentially to the first identification code; memory means for storing the picture information and the first identification code which has been correlated to each other by the first control means as one pair for a specified period; and second control means, such that when the second identification code of any value is given from an external device for generating the second identification code which synchronizes with the first identification code, for searching the first identification code which has the nearest value to the value of the second identification code in which a fixed relation between that is satisfied, and reading out the picture information which is combined with the first identification code from the memory means.
In the image processing apparatus according to this invention, the picture information to be processed is memorized corresponding to the first identification code, and is searched using the second identification code which has a relation of synchronization between the first identification code when searching. As a result, even in a time-divided multi-task image processing apparatus in which the time for image processing is not constant, necessary picture information can be detected certainly.


REFERENCES:
patent: 5508871 (1996-04-01), Ng
patent: 5706386 (1998-01-01), Miyazawa
patent: 5825967 (1998-10-01), Stewart et al.
patent: 0 176 324 A1 (1986-04-01), None
patent: 2-94883 (1990-04-01), None
patent: 4-3384 (1992-01-01), None
patent: 4-77188 (1992-03-01), None

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