KR950014649B1 - Continuous reservation recording control apparatus and continuous recording method of vtr - Google Patents

Abstract

The continuous reserving and recording control device of a VTR comprises: a pulse generation unit for generating pulses by the rotation of a supply reel and a take-up reel; first and second counters for counting the pulses generated from the pulse generation unit; a tape position data computing unit for inputting the output of the counters and computing a tape position data; a memory unit having a first storing region for storing the tape position data corresponding to the end position of the recording region of the tape and a second storing region for storing the present tape position data; and a micom for comparing the stored data and then generating a control signal to record a program from the end position of the recording region of the tape.

Description

VTI's continuous scheduled recording controller and continuous recording method

1 is a block diagram of a continuous reservation recording control apparatus according to the present invention.

2 is a flowchart showing the recording process of the continuous reservation recording method according to the present invention.

* Explanation of symbols for main parts of the drawings

18: supply reel pulse generator 20: take-up reel pulse generator

22,24: counter 26: tape position data calculation

28: microcomputer 30: capstan motor drive unit

32: storage device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video tape recorder (VTR), and more particularly, to a continuous reservation recording control device and a continuous recording method of a VTR, which enables accurate recording from the end of an area recorded on a tape during recording.

The video tape recorder has an output switching switch therein so that it can be regarded as one small station which connects a pro transmitted from a station to a television or a pro played from a video tape to the television. Can record the received broadcast program on the inserted tape.

The signal recorded on the video tape is composed of an audio track on which an audio signal is recorded, a video track on which a video signal is recorded, and a control track for recording a control signal for controlling the position of the playhead. Part, and an empty part.

In general, in order to record on a tape a user wants to record using a recording tape, as described above, the user wants not to overlap with the already recorded portion or to record in succession. If you want to record after the end of the recording after moving the tape, check the end point and the corresponding part of the TV screen by pressing the CUE, REV, and PLAY KEY, press the STOP or PAUSE key, wait for recording, and then The key signal is input.

However, since the VTR starts recording after waiting 1-2 seconds from the time of recording, if you look at the actual recorded part, the part of the recorded end is deleted and recorded, or the non-recorded part is inserted and then recorded. There is.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. By performing reservation recording on the basis of the tape position detection signal during the reservation recording of the VTR, the tape automatically moves to the end of recording even if the current position of the tape is not at the recording end. The present invention provides a continuous reservation recording control device and a continuous recording method of a VTR that can prevent errors in recording position on a tape.

According to an aspect of the present invention for achieving the above object, the pulse generating means by the rotation of the supply reel and take-up reel for running the video tape, the first and second counters for inputting and counting the generated pulse; A tape position data calculator for calculating the tape position data by receiving the outputs of the two counters, a first storage area storing the tape position data corresponding to the end position of the recording area of the tape, and a current tape position data storing the current tape position data. Provided is a continuous reservation recording control apparatus for a VTR comprising a storage device including two storage areas and a microcomputer for generating a control signal to record a pro from the end of the recording area of the tape after comparing the stored position data.

According to another aspect of the present invention for achieving the above object, the tape position data corresponding to the end position of the recording area of the tape by receiving and counting the pulse generated by the rotation of the supply and take-up reel for driving the video tape And a continuous scheduled recording method for performing continuous scheduled recording using the current tape position data, the method comprising: moving the tape so that the recording area end position data stored before the reserved recording time coincides with the current tape position; Recording on the adjusted tape at the reserved time, initializing the tape position data at the end point detection of the tape, and updating the end position data of the tape recording area to the current tape position data in the stop mode before the tape end point. Continuous reservation of the VTR, consisting of storing the current tape position A recording method is provided.

Other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

In the present invention, in order to recognize the end position of the recorded portion on the tape area when the user intends to perform continuous scheduled recording after playing the portion recorded by the reservation recording, the present invention uses the count value counted as the tape travels to the end position. An object of the present invention is to be achieved based on the corresponding count value and the count value corresponding to the current tape position.

To this end, the present invention uses a signal provided from the VTR to obtain a precise count value according to tape travel. Looking at the tape's path during playback or recording, it travels through the supply reel, full-width erasing head, head drum or video head, audio control head, capstan, and take-up reel. At this time, a supply reel pulse and a take-up reel pulse are generated by a photo coupler attached to the reel disk, and these pulses are applied to respective counters 22 and 24 as shown in FIG. By counting, the tape position can be known.

The first counter 22 receives the reel pulse from the supply reel pulse generator 18 and outputs the counted value N. The second counter 24 receives the reel pulse from the take-up reel pulse generator 20. It outputs the count value n which is inputted and counted. Then, in order to receive the count values N and n and store them in the storage device 32, the tape position data calculating unit 26 provides these count values N and n to the data storage device 32.

As shown in FIG. 1, the microcomputer 28 has a storage device 32, and stores the output tape position data in the second storage area of the storage device and the specific position data in the first storage area. The stored data is utilized in the data processing according to the object of the present invention as described below.

2 is a flowchart showing a reservation recording process according to the present invention. When the user sets the reservation program in advance, the present invention is applied. Therefore, as in step 1, it is first determined whether or not the reservation program is present. If a reserved program is set, recording is performed according to the reserved time or program code. Next, if continuous recording is set as shown in step 2, it is determined whether or not the first recording is completed as shown in step 3, and then the sub-reel pulse and take-up reel pulses at the end point as shown in step 4 are determined. The tape position at the time is stored in the first storage area of the storage device 32. Therefore, when recording a new pro at a scheduled time, recording is performed from the location utilizing the stored data.

Next, as in step 5, it is checked whether or not the reservation time is 't' minutes, and if yes, the process proceeds to step 6. In steps 6, 7, and 8, the tape is moved so that the current tape position P 'can be detected and matched with the stored tape position. This means that the microcomputer 28 moves the capstan motor as shown in FIG. It is operated by driving.

Then, when the data of the second storage area storing the current position P 'of the tape and the data of the stored tape position P in the first storage area are compared with each other in step 7, the process proceeds to step 9. .

In step 9, the result of step 7 confirms whether the reserved recording time has been reached correctly before starting the recording operation. Since the position of the tape is adjusted but the time is not correct, the process proceeds to step 5 again before the reservation time, and when the reservation time is reached correctly, the process proceeds to step 12. FIG.

In step 12, the microcomputer outputs various control signals so as to proceed with the recording operation, and turns on the recording timer. If the tape end point is detected by the tape end detection sensor as shown in step 13 while the recording continues, the process proceeds to step 14 to reset and initialize the tape position memory device, and if the stop command is input as shown in step 15 before the tape end point is detected. In step 16, the end position of the recording area is stored by storing the data of the second storage area which has detected and stored the current position of the tape instead of the data in the first storage area. Subsequently, the process proceeds to step 5 where it is checked whether or not before the reservation time. However, since this is not the case, the process proceeds from step 5 to step 10.

In step 10, as in step 1, it is checked whether a reservation program is set, and in the case of continuous recording, each step of step 5 or less is carried out. When a plurality of reservation programs are set, it is executed without errors. If not at step 10, the process proceeds to step 1.

As described above, according to the present invention, after the position of the tape is determined by using the supplied pulse, continuous recording without error is possible at the time of the scheduled recording.

Claims (2)

Pulse generating means by rotation of the supply reel and take-up reel for traveling the video tape; First and second counters which receive and count the generated pulses; A tape position data calculating unit for receiving the output of the counter and calculating tape position data; A storage device including a first storage area for storing tape position data corresponding to an end position of the recording area of the tape, and a second storage area for storing current tape position data; And a recording device for continuous recording and recording of a VTR comprising a microcomputer for generating a control call to record a pro from the end of the recording area of the tape after the comparison of the stored data. Continuously records the tape position data corresponding to the end position of the tape recording area and the current tape position data by receiving pulses generated by rotation of the supply reel and take-up reel for driving the video tape. A continuous scheduled recording method, comprising: moving a tape so that the recording area end position data stored before the reserved recording time coincides with the current tape position; Performing recording at a scheduled time on the positioned tape; Initializing the tape position data when detecting the end point of the tape; And in the stop mode before the end of tape, updating the end position data of the tape recording area with the current tape position data, and storing the current tape position.