JPH0330946B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an editing device that sequentially edits a plurality of events (one unit of editing) recorded on a plurality of video cassettes.

Recently, an editing device 1 as shown in FIG. 1 has been proposed. In this Figure 1, 2 is a central processing unit (CPU) as a control unit, 3 is a read-only memory (ROM) that contains software and is used for reading only and outputs to the CPU 2, and 4 is, for example, Register B ₁ , register B ₂ , etc. as data areas corresponding to each of the 128 events, and which one of the ₁₂₈ registers B is called into register A as a work area or is being called is memorized. Indicates the edit number register that is currently in use.

These registers B ₁ , B ₂ , ..., B ₁₂₈ each contain the reel number (two for A-B rolls that use two playback tapes at the same time) and the type of edit mode (assemble mode or insert mode). ), the type of source (for example, VTR, camera), the editing start point (IN point) and editing end point (OUT point) of the playback VTR and recording VTR for editing, the editing start point (IN point) of the audio signal, etc. Store it in memory and use it for editing work. Such register Bi
(i=1, 2, . . . , 128) is called in the register A as a work area in a predetermined case so as to participate in the editing operation. In other words, these registers allow the data stored in any register to be accessed by the CPU.
It functions as a random access memory that can be read or written according to register designation by No. 2.

Reference numeral 5 designates a key block for the editor to issue commands, and the commands from this key block 5 enable desired commands to be transmitted to the CPU 2 via the key interface 6. 7 indicates a display block that displays information necessary for editing such as reel number and time code.
A display signal is transmitted from the display interface 8 through the display interface 8.

9 indicates a recording VTR, 10, 11, . . . 19 indicates a reproduction VTR, and these VTRs 9, 10,
11..., 19 is the VTR interface 20,
21, . . . , 30 to communicate with the CPU 2.

Specifically, the key block 5 mentioned above is an entry key 3 for inputting editing data.
1. An edit key 32 for inputting edit numbers, a reel number key 33 for inputting reel numbers, a numeric key block 34 for inputting numerical values, a GO TO key 35 used for auto search, etc. are placed in the center of the controller 36. Provided as shown in Figure 2. Also, on the left side of the upper surface of the controller 36, there is a playback VTR 10.
Eject key 37, search dial 3, etc.
8 etc., and a key block 39 related to the recording VTR 9 is provided on the upper right side of the controller 36.

Further, each VTR 9, 10, ..., 19 is provided with an auto mode and local mode selection switch (not shown), which operates independently of the controller 36 when the local mode is selected. do. Note that the other parts are configured in the same manner as the conventional editing apparatus.

According to the editing device 1 having such a configuration, the individual registers B ₁ , B _{2 ,} . 5
By performing a predetermined command operation, the editing point can be smoothly specified by the register each time an event is edited. Therefore, for example, by using a plurality of reproduction master tapes, a plurality of reproduction VTRs 10, 11, . . . , 19
Even if you use a master tape with multiple events recorded, you can select the tape that corresponds to the reel number in the register at the appropriate time,
This allows efficient editing operations.

However, for example, when a tape is set to 10 on a playback VTR, the editing device does not have a means to detect the reel number of the tape and compare it with the memory contents of the edited data in the register. Tape with different reel number on VTR10
Even if the editor is set to , the editor may proceed with the editing work or correcting the editing points without noticing, and there is a possibility that the editing work will be done against the user's wishes. For example, if you are using a master tape on which only the first to third events are recorded, and you want to finish editing up to the end point of the third event, then edit the third event. In this case, another master tape recording the fourth to seventh events must be used. However, in this case, if there is no means to detect the reel number of the tape set in the playback VTR 10 and compare it with the memory contents of the edited data in the register, the fourth event is also detected as the first one. Alternatively, the master tape on which the third event was edited may be mistakenly recognized as being allowed to be edited from the editing start point specified for the master tape, and the editing may be continued without changing the master tape correctly. There are cases where this happens.

In view of this, it is an object of the present invention to provide an editing device that can detect and warn when the tape currently in use is unsuitable for use in the desired editing or correction to be performed next. It is.

An embodiment of the editing apparatus of the present invention will be described below with reference to FIG. In FIG. 3, parts corresponding to those in FIGS. 1 and 2 are given the same reference numerals, and detailed explanation thereof will be omitted.

In FIG. 3, reference numeral 40 indicates a comparison device that compares the reel number of the selected register with the read reel number stored in the playback side.This comparison device 40 uses register A as a work area and performs random access Registers B ₁ , B ₂ , ... that act as memory
..., B ₁₂₈ , compares the reel number of the edited data of the register selected with the reel number of the tape currently being used on the playback VTR, for example, 10, and detects whether the numbers match or do not match. It is something. If the reel numbers do not match, in other words, if the desired editing work or edit point correction work cannot be continued due to the current playback of the tape, an error message will be displayed after checking as described below. Do as you please.

Further, the configuration and operation of the editing apparatus of the present invention will be explained with reference to FIG.

When power is applied to the editing device, register A is first
Set reel number 101 and all registers Bn
Start editing by leaving (n=1, ..., 128) blank. Next, it is determined whether the reel number has been changed by manual operation and the contents of register A as a work area are changed. Then, it is determined whether the entry operation of the edit point has been completed, and if the operation has been completed, it is determined whether register Bn is blank, and if register Bn is blank, register A is stored in register Bn.
The data is transferred as shown in the fourth diagram. When register Bn is not blank, the comparator 40 compares the data in register A and register Bn, and if the reel numbers are not equal, it is determined that there is a reel number error, an error is displayed, and the lamp built in the eject button 37 is lit. Set the reel error flag to "1" and display the correct reel number of register Bn at the predetermined display position. Here, such an error display may include lighting up a display for the VTR in which the master tape in error is loaded. If there is no error in the reel number, no error will be displayed.

In addition, if an edit point entry operation has not been performed, it is determined whether or not there is an operation using the goto key 35 to cue the edit point, an operation of the button 32 for changing the edit number, or an operation of the auto mode button. If any of the operations is performed here and register Bn is blank or if the reel numbers of register A and register Bn are the same, it is not an error and no error is displayed. register
If Bn is not blank and the reel number data in register A and register Bn are not the same, it will be judged as a reel number error, an error will be displayed, and the lamp built into the eject button 37 will be lit to warn you of the need to replace the tape. , the reel error flag is set to "1", and the reel number of the correct register Bn is displayed on the display block 41 to facilitate tape replacement.

On the other hand, if there is no operation with the Goat Wookey 35, no operation of the edit number change button, or no operation of the auto mode button, it is determined whether the cassette is loaded or the reel error flag is set to "1", and if there is an error. When the reel is taken out and it is determined that the error has been cleared, the error display will stop, the eject button 37 built-in lamp will stop blinking, the reel error flag will be returned to "0", and the contents of register A will be changed to the correct contents of register Bn. do. If register Bn is blank or the data in register A and register Bn are the same, no error display operation is performed. Incidentally, since such a routine is repeated many times during editing work, an error message will be displayed immediately at the appropriate time.

As described above, according to the present invention, if the data currently in use during editing is unsuitable for use in the desired editing or correction to be performed next, it is automatically detected by the reel number comparison device 40. Since the system detects errors and immediately warns you by displaying an error message, there is no need to continue editing work by using the wrong tape. Therefore, there is an advantage that accurate editing can be performed efficiently and with peace of mind.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various other configurations may be adopted without departing from the gist of the present invention.

[Brief explanation of drawings]

FIG. 1 is a system diagram for explaining one embodiment of the editing device of the present invention, FIGS. 2 and 4 are diagrams for explaining the example in FIG. 1, and FIG. 3 is a diagram showing the main parts of the example in FIG. It is a system diagram provided for explanation. A, B ₁ , B ₂ , ..., B ₁₂₈ are registers, 10 ~
19 is a reproduction VTR, 9 is a recording VTR, and 40 is a reel number comparison device.

Claims (1)

[Claims] 1 It has a register that stores data of a plurality of events, and the register stores the reel number, editing start point, and editing end point of the event, and also has means for reading out the reel number stored on the playback side. The editing device compares the reel number of the selected register with the reel number of the reading means and displays an error if they do not match.