KR940004931B1 - Automatic editing system in a magnetic recorder - Google Patents

Abstract

The device includes a tape inserting means, a displaying means which displays an address of VASS and END MARK, an execution means which executes a rewinding mode, a termination mode and a high speed winding mode, an execution means which executes a record mode to record deck and a reproduction mode to the reproduction deck, a terminating means which detects an end point of tape, and an expiration means which erase an editing mode.

Description

Automatic editing system of magnetic recording device

1 is a block diagram of an automatic editing apparatus of the magnetic recording apparatus according to the present invention.

2 is an internal circuit diagram of the editing block shown in FIG.

3 is an overall control flow chart for automatically editing magnetic tapes in accordance with the present invention.

4 is a control flow chart for VASS marking magnetic tape.

5 is a control flow chart in the auto edit mode.

6 is a control flow chart in the manual edit mode.

* Explanation of symbols for the main parts of the drawings

1: Key input unit 2: Microcomputer

3: play deck drive unit 4, 10: audio head

7: play video head 8: monitor

9: recording deck drive unit 11: video head

12: edit block 13: blue screen controller

14: subtitle information generator 15: mixer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic editing system of a magnetic recording apparatus, and more particularly to a magnetic recording apparatus for automatically editing a video tape in a double-deck video tape recorder using a video address search system (hereinafter referred to as VASS). It is about automatic editing system of.

At present, the Applicant has produced and marketed a so-called double-deck video tape recorder equipped with a playback-only deck and a playback and / or recording deck. If you want to edit and record the scene you want to play and / or record on the playback tape (hereinafter referred to as the recording deck), you have to find the scene manually and operate the playback deck and recording deck. However, there was a drawback that the recording time is very long.

Accordingly, the present invention has been invented in view of the above circumstances, and the start and end points using VASS are displayed on a part of a double deck video tape recorder to be inserted into a playback deck to automatically edit a desired part of the tape. Its purpose is to provide an automatic editing system for a magnetic recording apparatus.

According to an embodiment of the present invention for achieving the above object is provided an automatic editing method of a magnetic recording device having a playback deck and a recording deck, which is to reproduce the tape to be edited inserted in the playback deck Start address is given the address of VASS; At the end of the screen is given an address for an end point different from the VHS format to the control track of the videotape; After the setting of the editing mode is completed, the playback deck is played, and only the screen on which the VASS address is displayed is recorded on the video tape mounted in the recording deck.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a double deck video tape recorder having an auto-editing function according to the present invention. The key input unit 1 provides a key signal for performing all functions of the double deck video tape recorder. The input unit 1 receives a key signal of the set itself or a key signal from a remote controller to provide a key signal to the microcomputer 2. If a playback signal is input from the key input section 1, the microcomputer 2 provides a signal to the playback deck drive section 3 so that the audio head 4 is operated to record on a video tape (not shown). The read signal is read and output from the speaker 6 via the dubbing unit 5 to output the audio signal recorded on the audio track of the videotape. At the same time, the playback deck drive unit 3 operates the video head 7 for reproduction. The video signal recorded on the video track is read so that the dubbing unit 5 displays the video signal on the via monitor 8. Therefore, in the reproduction mode, the audio signal and the video signal reproduced by the audio head 4 and the video head 7 can be displayed on the speaker 6 and the monitor 6, respectively.

In addition, if the user wants to record the entire videotape by simply using an external signal or a playback deck instead of an editing function, the user operates the key input unit 1 to input a signal for the microcomputer 2 to the playback deck. If you want to record a videotape, the playback deck drive section 3 is activated so that the video tape signal on the playback deck is routed to the speaker 6 and the monitor 8 via the dubbing section 5, respectively. At the same time, the recording deck driver 9 is operated under the control of the microcomputer 2 so that the audio head 10 and the video head 11 are operated so that the video deck signal of the playback deck via the dubbing unit 5 (audio + Video signal) can be recorded on a video tape (not shown) mounted on the recording deck.

On the other hand, the microcomputer 2 controls the editing block 12 to record the important portion of the tape in the playback deck on the tape mounted on the recording deck, and controls the blue screen controller 14 and the subtitle information generator 14 The signal output from the blue screen controller 13 and the subtitle information generator 14 is displayed on the monitor 8 after being mixed in the mixer 15, where the editing block 12 is described in detail in FIG. Shown.

That is, the output terminal Q of the two JK flip-flops ICI (IC2), in which the start point pulse and the end point pulse are respectively applied as the clock only, is applied to the other side of the two AND gates IC3 and IC4, and the VASS information is directed to one side. The recording setting information that is also applied to the other side of the OR gate IC5 that is input is applied to one side of the two AND gates IC3 and IC4, and the outputs of the OR gate IC5 and the AND gate IC3 are applied. The outputs of the input AND gates IC6 are respectively input to the exclusive OR gates IC7 together with the outputs of the AND gates IC4, and the outputs of the exclusive OR gates IC7 are regenerative stop / After being output as a start or recording stop / start signal, and via the inverter IC8, an automatic / manual selection signal is applied to one side of the AND gate IC9, which is applied to the other side, and a high-speed winding control signal at its output terminal. (FF) is output.

3 is an overall control flow chart according to the present invention. First, a user provides a key signal to the microcomputer 2 to turn on the power by operating the key input unit 1.

Then, the microcomputer 2 first supplies the respective power supplies including the dubbing unit 5 and the editing block 12 (step 101). Then, the user inserts the video tape to be edited into the playback deck, and inserts the video tape to be edited into the recording deck (steps 102 and 103).

At this time, the user sets a part to be edited on the video tape mounted on the playback deck in step 104. This flowchart is shown in FIG.

With the video tape to be edited into the playback deck inserted, the user sets and plays the VASS mode setting key in the key input section 1 (step 201), giving the address of the VASS to the beginning of the desired screen (step 202). At the end of the screen, a portion to be edited is designated while giving an end point (END MARK) different from the VHS format to the control track of the videotape (step 203).

If there are several parts to be edited, the program returns from step 204 to step 202 to repeat the above-described process.

When the editing portion is completely designated, when the user presses the stop key, the microcomputer 2 recognizes this and controls the operation of the play deck drive unit 3 to stop the operation of the play deck on which the video tape currently being played is mounted. (Step 205).

Then, when the rewind key is pressed, the microcomputer 2 controls the playback deck drive unit 3 to perform a rewind (REW) operation of the video tape (step 206). If the stop key is not pressed from the outside in this rewind mode, the program proceeds from step 207 to step 208. If the tape is not completely wound, the program proceeds from step 208 to step 206. The above process is repeated to detect the first point of the tape (i.e., the rewind operation), and when the stop key is pressed or the initial point of the tape is detected, the microcomputer 2 stops the operation of the playback deck (step). 209). This concludes the initial stage of editing. The user then operates the key input section 1 to select the edit mode (step 105) (see FIG. 3), and presses the Auto EDIT key (not shown) on the key input section 1. The program proceeds from step 106 to step 107, which is illustrated in the flowchart of FIG.

First, if the auto-edit key is pressed, the program proceeds from step 301 to step 302 so that the microcomputer 2 operates the playback deck in the forward fast forward mode so that the VASS mart searches the display point (step 303). . If the VASS mark is detected during fast forward rewind of the playback deck, the program proceeds from step 304 to step 305 so that the microcomputer 2 automatically stops the playback deck.

However, since there is a slight progression in the forward fast forward, the microcomputer 2 rewinds the playback deck until the VASS signal and then stops the playback deck (steps 306 and 307).

When the playback deck is played back, the VASS mark is searched again and if this is detected, the microcomputer 3 operates the recording deck in the recording mode (steps 308 to 311). When the recording deck is activated, the editing operation is performed (steps 312 and 313). When the VASS end point is detected during editing, the program proceeds from step 314 to step 315 so that the microcomputer 2 records with the playback deck. The program returns from step 317 to step 303 in order to perform the editing function if the end point of the tape is not detected by stopping all the decks and then forwarding the playback deck only (step 316). Will be repeated. However, if the end point of the playback tape is detected after the editing is completed, the microcomputer 2 recognizes this, releases the editing mode (step 318), and ends the program.

On the other hand, as shown in the flowchart of FIG. 3, in step 106, if the program is in the manual mode instead of the automatic mode, the program proceeds to step 108. This process is illustrated in FIG. .

6 illustrates the case where the editing function is operated in the manual mode. First, while the editing mode is manually set (step 401), the user presses the address of a program to be edited and stops the playback deck. (Step 402).

When the user presses the forward fast forward switch of the playback deck (step 403), the microcomputer 2 searches for the VASS mark when the tape is fast forwarded (step 404).

If the VASS mark is detected during such a search, the program proceeds from step 405 to step 406, and the microcomputer 2 rewinds the playback deck until the VASS signal and stops the playback deck (steps 407 and 408). After the playback deck is stopped, the microcomputer 2 operates the playback deck as the playback mode and searches for the VASS mark (steps 409 and 410). When the VASS mark is detected, the program proceeds to step (411). Proceed to step 412 to operate the recording deck as a recording mode. Then, video and audio signals reproduced from the playback deck are edited to the video tape mounted on the recording deck (step 413).

When performing this editing operation, the microcomputer 2 searches for the VASS endpoint. If the VASS endpoint is detected during the search (steps 414 and 415), the microcomputer 2 stops the operation of the playback deck and the recording deck (step). 416). If there are more parts to be edited later, the program returns from step 417 to step 402 to repeat the above-described process, and when all editing is completed, the editing mode is canceled and the editing operation is stopped (step 418). ).

According to the present invention operating as described above, when the playback deck is set to the playback mode after displaying the VASS start point and the VASS end point on the desired part of the video tape to be edited, only the part desired by the user can be sequentially recorded on the video tape on the recording deck. It provides convenience for use and saves editing time.

Claims (1)

In the automatic editing system of a double-deck magnetic recording device equipped with a reproducing technology and a recording deck, supplying power and inserting a tape to be edited and a tape to be edited into the replay deck and the recording deck, and the user sets the VASS mode. Displaying the VASS address and END MARK at the start and end of the desired screen while operating the playback deck in playback mode by turning the key on, and performing the above editing for each desired part. When this is turned on, the playback deck performs the rewind mode; when the user presses the stop key while rewinding to the initial position of the tape, stops it at the on position; and when the user turns on the auto edit key Operate the playback deck to the position where the VASS mark is in fast forward mode, find the correct VASS signal position, and stop the playback. The recording deck is operated in the recording mode in the large playback mode, the editing recording is performed until the end point is detected, and the playback deck and the recording deck are stopped in the process of canceling the editing mode when the end of the tape is detected. Stopping the playback deck while selecting the VASS address of the desired program while the user selects the manual editing mode, and when the VASS mark is detected while operating the playback deck in the fast forward mode, the playback deck is moved to the correct position. Stopping editing, playing deck in playback mode, recording deck in recording mode, performing edit recording until the end point is detected, and canceling the edit mode if the user does not select a VASS address for continuous recording. In this case, only the screen displaying the address of VASS is edited and recorded. Automatic editing system of recorder.