JPH02108381A - Editing system - Google Patents

Abstract

PURPOSE:To confirm both pictures to be edited by synthesizing a part of repro duction picture of the deck of a source side between IN point and OUT point and the reproduction picture of the deck of a master side under a pre-view mode, and outputting it. CONSTITUTION:The time code of editting points (IN point and OUT point) at a source side VTR 1 and a master side VTR 2 is registered in an operation part 16. Next, a pre-view operation is started by the operation part 16, the tape travelling system 17 of the both VTR is controlled, and the tape is fed to a pre-roll point preceding to a specific time from the IN point. The tape reaching earlier stands by at the pre-roll point, when both are complete, the both VTR are reproduced, a reproduction signal is outputted from the VTR 2. Next, when it reaches an editing IN point, a switching signal 5 is operated through an instruction from a CPU 15, and the output from the VTR 2 is switched to the picture signal to be synthesized by a picture synthesization circuit 11. When it reaches an editing OUT point, the output from the VTR 2 is switched to the reproduction picture by an instruction from the CPU 15 again.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to an editing system, and particularly to an AI collection system that inserts a video signal recorded on a first medium into a video signal recorded on a second medium. .

[Conventional technology]

In general, the procedure for connecting two VTRs and performing insert editing is to select the master (note #i) tape side editing start point (hereinafter referred to as the IN point), the end point of the IIIA collection (hereinafter referred to as 00
7 points) and IN on the source (playback) tape side,
After registering the time codes of at least three points among the 007 points, confirmation is performed in a mode called preview before actual editing, and then the main editing begins. The operation of this preview mode is that when you press the preview button, both VTRs display a point a certain amount of time before the IN point (
(usually called the pre-roll point), and when both tapes have been fed to the pre-roll point, both VT
R enters the playback state, and after a certain period of time has elapsed from point 007, both VTRs enter the PAIJSE state. During this time, the video signal No. 43 outputted by the source side VTR is the reproduced image of the source tape, and the video signal outputted from the master side deck is the reproduced image of the master tape up to the IN point.
N, EE between 0IIT points (source tape playback image)
After the 0IIT point, the screen switches to the master tape playback image, allowing you to check the status of the m collection. [Problem to be Solved by the Invention 1] However, in the conventional example described above, although it is possible to check the image on the source side to be inserted during editing, it is not possible to check the image on the master side to be inserted during editing, that is, the image to be erased. Although it is possible to check the time code played back on the master side deck, it is difficult to understand the moment of switching.
Detailed confirmation is difficult. In addition, the confirmation work becomes troublesome twice, which impedes the efficiency of the editing work. SUMMARY OF THE INVENTION In view of these drawbacks, it is an object of the present invention to provide a device that allows confirmation of both images to be edited during preview. [Means for Solving the Problems] With this object in mind, the present invention provides an editing system for inserting a video signal recorded on a first medium into a video signal recorded on a second medium, in which each of the aforementioned first medium is inserted into a second medium. 1. The first medium is loaded with a second medium. a second deck, and a control unit including means for specifying an editing start point and an editing end point of the first medium and the second medium,
The editing is performed from the editing starting point in a preview mode in which the first and second decks are put into a playback state so that the editing start point and the editing end point of the first and second media are played back at the same timing. A composite video signal of the video signal reproduced by the first deck and the video signal reproduced by the second deck is output until the end point. [Function] According to the present invention, in the preview mode, IN,
By inserting and outputting the reproduced image of the master side (second) deck into a part of the reproduced image of the source side (first) deck between the 0IIT points, it is possible to eliminate the image that is erased at the same time as checking the editing status. Confirmation can be done on the same screen. [Example J] An example of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an editing system as an embodiment of the present invention. 1 is a source side VTR (deck), 2 is a master side VTR (deck), and the video signal V and audio signal A output from the source side VTR 1 are input to the master side VTR 2, and are also manually input to the source monitor 3. be done. Signals V and A input to the master side deck 2 are processed for recording in the video/audio processing section 4 when the master side deck 2 is set to recording mode, and are recorded on a magnetic tape by the electromagnetic conversion system 18. be done. On the other hand, these signals V and A are also input to the switching circuit 5 as video and audio EE. In addition, in the playback mode, the playback signal (^OUT.VOUT) from the electromagnetic conversion system 18 is also sent to the switching circuit 5 via the video and audio signal processing unit
is input. Here, the video signal EE (V) as EE
and the video playback signal VOIIT are each sent to the A/D conversion circuit 6.
．． 7 and stored in memory 8.9. The data of the signal stored in the memory 9 is thinned out by the sampling circuit 10, and the data is thinned out by the sampling circuit 1O, and the data is sent to the image synthesis circuit 1 together with the signal from the memory 8.
1 and a D/A conversion circuit 11', the image signal becomes an image signal in which the reproduced image 13 is embedded in a part of the EE image 12 as shown in FIG. 2, and is input to the switching circuit 5. Also, the audio signal EE(A) as EE is the reproduced audio signal from the source deck 1, and the reproduced audio signal A from the master deck 2.
It is manually input to the switching circuit 5 along with 0IIT. Video and audio signals switched depending on the mode are output from the switching circuit 5 and are manually input to the master side monitor 14. Reference numeral 15 denotes a CPU, which controls the source side VTRI and master side VTR 2 by manual key input from the operation section 16. Next, the operation in preview mode will be explained. Third
The figure shows CPt11 in preview mode in this embodiment.
5 is a flowchart showing the operation of step 5, and FIG. 4 is a timing chart. First, on the operation unit 16, edit points (I
After registering the time code of point N, point 007), press the preview button on the operation panel IB to start the preview operation, control the tape running system 17 of both VTRs, and record the time code a certain amount of time before the IN point. Send the tape towards the pre-roll point (Sl). The one that reaches the preroll point first waits in the PAUSE state (S2), and when both VTRs reach the preroll point (S3), both VTRs start playing (S4), and the master VTR 2 outputs a playback image signal (S2). S5). Next, when the editing IN point is reached (S6), the switching circuit 5
operates, and the output from the VTR 2 is switched to an image signal synthesized by the image synthesis circuit 11 (S7). At this time, the audio switches to EE. When the editing point 017 is reached (S8), the output from the VTR 2 is switched again to the playback image by a command from the CPU 15 (S9), and the editing point 017 is reached (S8).
After a certain period of time S has passed from the υT point (510),
The tape stops and enters the PAIJSE state (Sll). As mentioned above, during preview operation, 0 from the edit IN point
By incorporating the playback of the master side VTR into a part of the %EE image in the output image between the IIT points, it becomes possible to check the editing status and the image to be deleted at the same time. [Effects of the Invention] As explained above, according to the present invention, it is possible to simultaneously confirm the image to be recorded and the image to be erased.
Work during preview operation can be performed efficiently.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of an editing system as an embodiment of the present invention, Fig. 2 is a diagram showing the state of a composite image, and Fig. 3 is a CP in preview mode in the present invention.
FIG. 4 is a flowchart showing the operation of U. FIG. 4 is a timing chart showing the operation in preview mode in this embodiment. 1...Source side VTR. 2... Master side VTR. 4... Video and audio processing unit, 5... Switching circuit, 11... Synthesizing circuit, 12... Both EE image 13... Playback image of master VTR, 15... CP
Figure 2 Figure 4

Claims (1)

[Claims] 1) An editing system that inserts a video signal recorded on a first medium into a video signal recorded on a second medium, the first and second media being respectively attached to the editing system; a second deck; and a control section including means for specifying an editing start point and an editing end point of the first medium and the second medium, the editing starting point of the first and second media; and a video signal played by the first deck from the editing start point to the editing end point in a preview mode in which the first and second decks are put into a playback state so that the editing end point is played back at the same timing. and a video signal reproduced by the second deck to output a composite video signal.