JPS58115670A - Editing device - Google Patents

Abstract

PURPOSE:To decide on an editing point of a video tape easily, by controlling the tape running speed of VTRs optionally. CONSTITUTION:Speeds of an original and a master tape at editing points are X and time codes of desired video parts of both tapes at editing points are Tcx and Tcy. Then, VTRs 1 and 4 are adjusted in phase to start reproduction at a prescribed speed (x), and the current time code Tx of the VTR1 and the current time code Ty of the VTR4 are supplied to the CPU3 respectively to decide on an expressionI. When the expression does not hold, such calculation that Z= ¦Tcy-Ty¦-¦Tcx-Tx¦is carried out to generate DELTAZ in relation to the current value of Z; and the tape running speed of the VTR1 is set to x-DELTAZ to equalize the movement distance Dy of the master tape corresponding to¦Tcy- Ty¦to the movement distance Dx of the original tape corresponding to¦Tcy- Tx¦. When the expression holds, Dx and Dy are equal, so that VTR1 is operated at an (x)-fold speed. Said method is applicable to a system using plural VTRs.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an editing device suitable for use, for example, in editing a video tape, and particularly to a video tape editing device. This makes it easy to decide whether or not to discard editing when editing, and allows for good editing.

Hereinafter, an embodiment of the concentrator according to the present invention will be explained with reference to FIG.

In Figure 1, (1) and (2) are the original photos taken respectively! A helical scan type video recorder (hereinafter referred to as a VTR) for reproducing the video data may be small, basically one TI unit, or 2ξ3 or more may be installed depending on the cost. In these VTRs (1) and (2),
In addition to normal playback, it is possible to perform playback at a tape running speed different from the tape running speed at the time of recording (normal speed), that is, slow playback, double speed playback, still playback, reverse playback, etc. In this case, it is possible to provide the reproducing head with an electro-mechanical conversion element as well as a history changing means so that tracking is always performed correctly and a normal video signal can be obtained even during the above-mentioned special reproduction. can.

In addition, these VTRs (1) and (2) are equipped with a time code read head and a time code read circuit. The time code is supplied to a central processing unit (hereinafter referred to as CPU) (3).

In addition, (4) is the master VT loaded with the master tape.
R, this master VTR (4) is also configured to be able to perform slow playback, double speed playback, still playback, reverse playback, etc. in addition to normal running, and has a built-in time code readout circuit. The found time code is supplied to the CPU (3).

Furthermore, a reference time code is supplied to the CPU (3) from a reference time code generator (5). Also CPU (3
) so that the contents of the time code generator (5) can be reset to a predetermined value +*rc7'.

From the CPU (3), each VTR (1), (2),
(4) is supplied with a teno running control signal and a recording/playback control signal through a VTR:F control interface circuit (6).

On the other hand, an operation mode signal is supplied from each VTR (4), (2), (4) to CP[J (3) via this VTR control interface circuit (6).

Another original chi! Data such as the speed at the editing point of the original team, the time code of the desired editing point of the original team, the desired playback time, the speed at the editing point of the master team, the time code of the editing point of the master team, etc. are stored in the VTR controller (
8) Edit control interface circuit (7)t
- is supplied to the CPU (3) via the CPU (3).

1! Operation of K CPU (3) A memory (9) in which GLODARAM etc. are written is provided, and the processing operation of cpυ (3) is performed by the signal from this memory (9), and the data etc. from the CPU (3) are゛It is stored in this memory (9).

And in a part of this memory (9), for example, #I2 diagram,
Processing procedures as shown in the flowcharts of FIGS. 3 and 5 are included. Note that this Grodarum shows the case where the reference time code from the time code generator (5) is used to determine, rehearse, and trim editing points between the original and master chips 7.

Furthermore, a video signal switching circuit (7) is provided, and the VTR (1)
, the output Eirin signals from (2) and (4) are switched so that they are supplied to Mokotar α-ken and (1'4). Also, (to) indicates the video signal output terminal, and this video signal output terminal a3 is The obtained Eirin signal can be broadcast.

Next, the case of determining mutual editing points between master VTR (4) and VTR (1) will be explained in detail.

When determining the editing point, use the search dial α◆ on the VTR controller (8) to arbitrarily change the speed of the chives on the VTRs (1) and (4), and press the ? Enter the editing point by operating the 'fr-' key (-).

Here, T o x 1 is the original number of VTR (1)! Tey1 indicates the time code of the first editing point of the master tape of the master VTR (4). Also, α is Noriroll time expressed by time code, and X is search dial α.
This is the speed of travel set in ◆.

That is, as explained in the flowchart of Fig. 2, this system of equipment is started, transferred to the nori roll point Tcxl -αX of the VTR (1)'t-original team, and stopped, and then transferred to the master VTR (4).
is transferred to the master tape's glue roll point Tcyl-αX and stopped. Then VTR (1) and (4)
All the phases are adjusted at the same time to start the playback state at a predetermined speed X, and the current time code Tx and V of the VTR (1) are
The current time code 'ry of TR (4) is sent to each CPU.
(3).Next, in CPU (3), I
Tcy -Ty 1% l rag -TX When 1 is determined and the left side is larger than the right side, Z=lTcy-T
yl-lTcx-TX1 is calculated, and at this time, Δ(Z) t- is created in relation to the value of 2, and the chive running speed of VTR (1) is set to the speed of X-Δ(Z), corresponding to ITey-Tyl. The original chi corresponding to the master tape movement distance D7 and IT・x −Tx l! The moving distance Dx is set to be equal to the moving distance Dx.

In this case, when the value on the right side is larger than the value on the left side, Z' z l Tex-TXI -1τey-Tyl is calculated, and at this time, Δ(2') is created in relation to the value of 2', and VTR(i) The running speed of the chive is set to the speed of X+(2'), and DF and Dx are made equal.

In this case, when the value on the right side and the value on the left side are equal, Dx
and D7 are equal, so VTR(1)? Make it run at x times the speed. In this state, Master Chi while watching monitor α and (6)! and original chi! Find an edit point other than the first edit point, enter it, and store it in the memory (9) as a Grodarum. Repeat the above-mentioned decision to collect fish until the command to cancel is given, until the desired point is reached. configure the program. In FIG. 2, the symbol is used to indicate both forward mode and reverse mode.

In this case, since the tape running speed of VTRs (1) and (4) can be set to an arbitrary X times speed, editing points can be easily determined and accuracy can be increased.

In the improvement example, master VTR (4) and VTR (1
), but in the same way, edit points can be determined in four different ways between the master VTR (4) and VTRs (1) and (2), or between multiple VTRs. It is easy to understand that a desired editing point can be determined mutually.

Next, the case where the editing point is determined between the master VTR (4) and the VTR (1) as described above and rehearsal is performed at the playback speed X will be explained using the flowchart of FIG. Here, X is search, and the team set with dial 0◆
It is the running speed. In this case, this playback speed #XFi first! It is determined by the programmed speed, but the search dial α is set during execution.
By adjusting ◆, it can be determined arbitrarily.

First, to explain the case of rehearsing in the forward direction as shown in FIG.
x Master Qi of this point Master VTR (4)! The time code is "1m," and this original chi f (time at the end point (OUT) of D editing: r-) is iT. Pl Time code tT of the master tape at this point. , and so on.

Start this rehearsal with L, VTR (1) and (4).
) is determined to be the normal direction, and if this tape running direction is the forward direction, the VTR (4)
and (1) t-Nori roll. That is, VTR (4) O
Transfer the master tape to T11-αX and stop it, and also record the original tape of VTR (1). is stopped at TIF-αX. Next, start playback on both VTRs (4) and (1) at a speed of This is reproduced, and at this time, the output video signal of the contents of the original chip of the monitor αJ K VTit (1) is supplied, and this is reproduced. Then, the tapes of the VTRs (1) and (4) are run in synchronization.

Next is the editing point (IN point), that is, Master Chi! is the time code Tl1l (original Chi! time code “1+
, ), and when this IN point is reached, the output video signal (B) of VTR (1) is supplied to the main monitor type A and played back. The other editing point (point 007), that is, the master tape, which supplies the output video signal to the monitor ○ and plays it back, has time code T.

1 (original chive time code T.?)], and when it reaches this 007 point, the main monitor α
l) Supply the output video signal (C) of the K VTR (4) and play it back to this 1. At this time, supply the output video signal of the VTR (1) to the monitor Q and play it back, and this rehearsal ends. . In this case, the content of the edit can be monitored on the main monitor A1, and this playback mode i VTR
By adjusting the search dial (of the controller (8)), the desired result can be obtained, so that a good editing rehearsal can be performed.

Next, a case where rehearsal is performed by reversing the editing time as shown in FIG. 4B will be explained. Reversing this time allows you to better understand the connections between the paintings, which is extremely effective as a rehearsal.

When rehearsing in reverse, it is determined that the tape running direction of VTRs (1) and (4) is in the reverse direction, and the VTR
(4) and (1) Wogriroll. That is, VTR (4)
(Transfer the D-r starchive to "on+αX" and stop it, and stop the original chive of VTR (1) to "OF+αX".) Next, move this VTR (4) and (1) together to -
Start reverse playback at a speed of
The output video signal of TR (1) is supplied and reproduced. Then, the tapes of the VTRs (1) and (4) are run in synchronization. Next, it is determined whether another editing point (007 point) has been reached, and when this 007 point has been reached, the output video signal (B) of the VTR (1) is supplied to the main monitor αυ and played back. Then, the output video signal of @V'rR (4) is supplied to the monitor screen for playback. It is determined whether the editing point (IN point) has been reached, and when this IN point is reached, the main monitor aυ The output video signal (A) of the VTR (4) is supplied to the monitor Q and reproduced, and at this time the output video signal of the VTR (1) is supplied to the monitor Q and reproduced, and this reversal rehearsal is completed. In the above example, the rehearsal between the master VTR (4) and the VTR (1) was described, but in the same way, the rehearsal between the i-star VTR (4) and the VTRs (1) and (2), and between the rehearsal It is easy to understand that rehearsals can be performed in the same way with a plurality of VTRs as described above.

Next, when editing information needs to be corrected (trimmed) during the above-mentioned rehearsal, it is done according to the flowchart in FIG.

This trimming will be explained, for example, in the case of correcting the IN point in FIG. 4A.

When this trimming is started, it is determined whether the editing information has been determined, and if it has not been determined, it is terminated, and when it has been determined, the master VTR (4), which is the preceding material, is output to the KFi main monitor Ql). Video signal (4
) is supplied and played, and the output video signal of the VTR (1) is supplied to the monitor α for playback.1st, it is determined whether there is a rehearsal command, and if there is a rehearsal command, the above-mentioned editing rehearsal is performed. If there is no trimming cancellation command after this, K determines whether there is a next trimming cancellation command, and if there is no trimming cancellation command, VT
It is determined whether there is a command to move the material from the dial of the R controller (8), and if there is a command to move the material, the material is moved, and then if there is no command to move the material, the next color is Editorial information! It is determined whether there is a rehearsal command, and if the change command is valid, the change is executed, or if there is no change command, then it is determined whether there is a rehearsal command again. Repeat this action in the trench where there is an order to cancel trimming. In this case, the VTR (4
) and (1) can be set to any desired speed by adjusting the low playback, still playback, and search dial α4, so it is possible to make better testicular corrections with ease.

Next time there is a command to cancel trimming, it will be determined whether or not the meeting has changed, and if this change occurs, it will be stored in the memory (9)! Of program? If there is an editing point m, the IN point is corrected. After that, or if you do not change the nested information, the main monitor Hyc will display the subsequent material.
The output video signal (B) of R(1) is supplied and reproduced, the monitor 〇-〇 is turned black, and the trimming is completed. When performing trising again, repeat the above prayer.

In addition to the above, various other modifications are possible in this book @ Akira.

fil f- uses both monitors Oυ and (6
), and at the same time, the display gray displaying the editing information is returned from the state of waiting for the determination of the next editing point to the state corresponding to the previous i, +11 dust versal. Alternatively, when modifying the threat information, the above-mentioned display can be returned from the state of waiting for the next editing point to the previous state.
l! When the editing information includes one or both of an effect and variable speed playback information, this effect and variable speed playback information are checked! In connection with the above time code, the switcher or V
Send commands for effect and/or variable speed playback to TR.

In addition, the VTR described above may include a recording and playback device for other materials, or if the editing point of one material is corrected when editing the editing point, the editing point of the other material is automatically corrected by the same amount (image Similar to known editing devices, the present invention has the function of saving the relative position of the materials before and after modification, and the function of independently modifying the editing points of both materials.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various other configurations can be taken without departing from the gist of the present invention.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing one embodiment of the editing device of the present invention, and FIG.
FIG. 3, FIG. 4, and FIG. 5 are diagrams for explaining the present invention, respectively. (1) and (2) are husband k VTR, (3) ViCP (J
, (4) li mass I - VT) t, (8) is VT
R: +7 controller, (9) is memory, and 0υ and 0v are monitors, respectively. 1st t&j 4th F61 Time phrase steam line -- Ginma e4 Tue-1◆

Claims (1)

[Claims] Each of the plurality of VTRs is set as a variable speed Nyuueiguchi J^Jin, and the VT of the above count is used at the time of editing rehearsal.
) An editing device that is praised for being able to arbitrarily control the tape running speed of t.