KR20000002738A - Method for controlling tape position in a video cassette recorder - Google Patents

Abstract

PURPOSE: A VCR tape position control method is provided to solve the problems of conventional VISS(video index search system) and VASS(video address search system) techniques. CONSTITUTION: The method includes counting and recording VISS signals on a tape in the first stage of reservation recording, recording a TV program at the completion of is inputted at the completion of the writing the counted VISS signals, checking whether a reservation recording confirm key reservation recording, displaying reservation recording status menus associated with VISS numbers on an OSD(on-screen display) portion of a display screen when the reservation recording confirm key is inputted, checking whether a user inputs a VISS number, and controlling a deck part of the VCR so as to move the head of the VCR to a position on the tape in which the VISS number is recorded.

Description

How to control the tape position of VSI

The present invention relates to a method for controlling the tape position of VSI. More specifically, the user inputs a vis signal sequentially at the beginning of program recording in order to distinguish each recorded program during drug recording. If you press the record status check key by using the screen, the reserved recording status menu screen is displayed on the OS screen, and when the user selects the service No. of the program you want to see, the tape is automatically moved to the tape position.

A typical VSI system is to record various video / audio sources on a recording tape and to play and view the recorded video / audio programs. When recording a TV broadcast program on a VSI tape in a conventional VSI system, when the recording key of the remote control is pressed, the deck is driven by the control of the servo circuit and recording proceeds. As a signal for searching, an index signal is recorded through the control head to perform a video index search system (VISS) function.

The vis function records index information using a change of duty in a control pulse used for phase control of a capstan on a tape, so that the tape recording contents of a predetermined portion can be easily found. That is, by operating key buttons such as index +, index−, and index scan on the keypad side of the remote control transmitter, an index signal may be inserted or erased or taped to the index part during tape recording.

On the other hand, the tape program management technology as described above has a technology called VASS (Video Address Search System) using VHS type bus address format in addition to the service function, which has already been disclosed in Korea Patent Publication No. 1239 ( Publication No. 92-16026, which is shown in FIGS. 1 and 2.

1 shows an example of an address data format, and FIG. 2 shows a circuit block diagram of a bath system.

The bath system 20 includes a main controller 21 which performs heading assignment and bath address cataloging control of the bus address, and a composite image in a designated format by a control operation of the main controller so that characters can be synthesized in the composite video signal. And a character generator 22 for synthesizing characters to the signal, and a RAM 23 for storing the listed data so that the data can be displayed through the character generator during tape record retrieval.

Such a bath system is specifically processed as shown in FIG. 3. First, if there is a tape insert in the system, it is checked whether there is an input of a bath address listing key, and if there is an input of this key, a title OSD display and a tape rewinding operation are performed. After the rewind, it is checked whether the tape fast-forwarding, the title OSD display and the tape driving are finished, and if there is a tape end, whether there is a bath address detection. At this time, if there is a bath address detection, the bath address is detected and the ODS display unit real-time count is displayed to return to the tape fast forward mode, and if it is the end of the tape, it is checked whether there is a bath address detection.

However, as described above, in the conventional system, the service function is capable of determining whether the program is started or not on the tape, and there is no method for checking the recording state of the program. There was a hassle to see and check the screen of the program.

On the other hand, the latter bath function can improve the program search function by means of the cataloging of bath addresses, but the system configuration for this is complicated, and each bath address assigned to the tape is read, stored in memory, and then recombined. The difficulty of operating the system was difficult due to the complexity of the control means.

As another technique for controlling the position of a video tape, Korean Patent Application Publication No. 1455 (Publication No. 97-46013) is known, but this technique sets a method of setting an arbitrary number of ID signals specifying a tape position during playback. There is a problem that it is difficult to employ during reservation recording.

Accordingly, an object of the present invention is to provide a method for controlling tape position of VSI so that a user can easily search for a desired program when a plurality of programs are continuously recorded.

1 is a reference diagram showing a conventional VASS address data format form;

FIG. 2 is a circuit block diagram of a conventional system in which a bath address can be listed and operated.

3 is a reference diagram illustrating a bath address listing processing method according to FIG. 2;

4 is a circuit block diagram for implementing the present invention;

5A is a flowchart illustrating a service signal recording process during reservation recording according to the present invention;

5b is a flowchart showing a tape position checking process according to the present invention;

6 is a reference diagram showing a recording state of a bis signal according to the present invention.

** Explanation of symbols on the main parts of the drawing **

40: control head 41: Vis signal recording / detecting unit

42: microcomputer 43: register

44: memory 45: deck

46: servo portion 47: OSD

48: Video Rust / Replay

The present invention is to determine whether the reserved recording function key is set by the remote control or the like after the system power is initially turned on so as to realize the object of the above example, and if the reservation recording function key is determined at the step by the user Determining whether or not the preset scheduled recording start time has arrived; and if the reserved recording start time arrives at this step, counting the service number and recording the non-signal signal accordingly, and recording the non-signal signal in the step. And proceeding with recording, continuing to check whether the scheduled recording end time has arrived, and determining whether another scheduled recording has been set when the scheduled recording end time arrives at the step. Non-signal recording process during recording; Determining whether the reservation recording status confirmation key is input after the reservation recording is completed; and if the reservation recording status confirmation key is checked in the step, outputting the reservation recording status menu according to the service No. on the OS screen. And, if the reservation recording status menu is outputted in the step, determining whether there is an input of the service number by the user, and if it is determined in the step that there is an input of the service number, sending a control signal to the deck to send the control signal to the tape. Moving the tape to the place where the corresponding Bis No. is located; when the step is completed, proceeding with normal playback; determining whether a vis signal is detected during reproduction; When detected, it includes a tape position checking process which processes the step of judging whether a playback stop key has been input by the user. It is characterized by including.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

Fig. 4 shows the main circuit block of the VIAL system for implementing the tape position control method for the VSI according to the present invention.

The system includes a vis signal recording / detecting unit 41 for recording an index signal on the control track of the tape during recording of a video tape or vice versa at the time of reproduction, and the vis signal recording / detecting unit 41. The microcomputer 42 is connected to the input side of the microcomputer 42 to apply a control signal to the vis signal recording / detecting unit at the beginning of the reservation recording.

In addition, the system includes a register 43, a memory 44, a deck 45, a servo 46, an OS 47, a video recording / replay 48, and the like, which constitute a general VSI. Is connected.

The process of the present invention configured as described above is as follows.

That is, when the user presses the reserved recording function key of the remote control or the set key while the user inserts a tape into the deck unit 45 of the VSI system, the VSI microcomputer 42 determines whether the reserved recording function key is set. (Step 100) When it is determined that the setting is made, it is periodically checked whether the scheduled recording start time has arrived through the timer built in the microcomputer 42 (step 101).

On the other hand, when the scheduled recording start time arrives, the microcomputer 42 sends a control signal to the vis signal recording / detecting portion 41 to record the vis signal VISS 1 at the beginning of recording of the program 1 as shown in Fig. 6 (step 102). Also, as the reserved recording program 2, program 3, and program 4 are sequentially recorded, the non-signal signals VISS 1, VISS 2, VISS 3, and VISS 4 indicating the position of the tape are shown in FIGS. Will be written together.

When the recording of the vis signal VISS 1 is completed as described above, the microcomputer 42 continuously sends a control signal to the video recording / reproducing section 48 to advance the recording mode (step 103). While the recording mode is in progress, the timer periodically checks whether or not the scheduled recording end time has arrived (step 104). If the check result is reached, recording continues and if another scheduled recording is set, the scheduled recording end time is reached. (Step 105). At this time, if it is determined that another reserved recording has arrived, the process returns to step 101 again.

On the other hand, if you want to play the desired program on the tape recorded by the user in the state that all the reservation recording is completed, press the reservation recording status confirmation key provided on the remote control or set key, the microcomputer 42 is the reservation recording status confirmation key If it is checked whether or not it has been input (step 200), and if it is checked, the control signal is sent to the OS unit 47 to output the reserved recording status menu according to the service number to the OS screen (step 201).

Vis No. Date Start Time End Time 1 98/5/10 10:00 11: 302 98/5/10 12:10 01: 003 98/5/10 02:00 04: 004 98/5/11 10:00 11:00 Click the service number you want to view.

At this time, when the user presses the Vis No. that he / she wants to watch by using a remote controller or a set key, the VSI microcomputer 42 checks this (step 202), and then sends a control signal to the deck unit 45 and accordingly the deck unit ( 45) moves the tape to the corresponding service No. (step 204). When the movement is completed, the control signal is sent to the video recording / reproduction 48 again to proceed with the playback mode (step 204).

If a vis signal is detected during reproduction by the vis signal recording / detecting unit 41 after a predetermined time has elapsed, the microcomputer 42 checks it (step 205) and then determines whether a regeneration stop key has been input by the user. (Step 206), at this time. If it is determined that the regeneration stop key has been entered, the regeneration mode is terminated, and if no regeneration key is entered, the flow returns to step 201.

As described above, the present invention sequentially inputs a vis signal at the beginning of program recording to distinguish each of the recorded programs during drug recording, and when the recording is completed, when the user presses a recording status confirmation key using a remote control, the OS screen is displayed. When the schedule recording status menu screen is displayed and the user selects the service No. of the desired program, the tape is automatically moved to the tape position. It becomes possible.

Claims (1)

After determining that the reserved recording function key is set by the remote controller or the like after the system power is turned on initially (step 100), and if the reserved recording function key is set in the above step, the scheduled recording start time set by the user is Determining whether or not it has arrived (step 101), and if the scheduled recording start time arrives in this step, counting the service number and recording the service signal (step 102) accordingly, and recording the service signal in the step. When the recording is completed, the process of recording proceeds (step 103), and the step of checking whether or not the scheduled recording end time has arrived (step 104), and another scheduled recording is set when the scheduled recording end time arrives at this step. Recording the service signal at the time of reservation recording processing the step (step 105); A step of determining whether a reservation recording status confirmation key is input after the reservation recording is completed (step 200), and if the reservation recording status confirmation key is input in the above step, the reservation recording status menu according to service No. is displayed on the OS screen. Outputting (step 201), and if the reserved recording status menu is output in the step, determining whether the user inputs the service number (step 202), and inputting the service number in the step If it is determined that the control signal is sent to the deck to move the tape to the place where the corresponding service No. of the tape is located (step 203); Determining whether a vis signal is detected during playback (step 205), and when a vis signal is detected in the step, determining whether a playback stop key has been input by the user. System (step 206) the tape position of the V-sialic control comprises a tape position check processing the method