KR19990025604A - How to restrict viewing of certain video playback screens - Google Patents

Abstract

The present invention relates to a video playback method in a VCR that plays back a video tape seated on a video technology and outputs the video signal and the audio signal separately. In particular, an adult video is provided for specific parts of a video stored in a video tape. The first step of recording the code with a specific code in the corresponding control track of the videotape, the second step of registering a password for parental control when the videotape is played by the user, and placing the videotape on the video tape. A third process of requesting a user to input a password during a reproduction operation, a fourth process of comparing the password input by the third process with a password registered through the second process, and the fourth process If it is determined that the passwords are not identical to each other, the code is written to The images of the part relates to a parental control for a particular video playback display method characterized in that it does not play a fifth step of reproducing only the image of the other part.

Description

How to restrict viewing of certain video playback screens

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a VCR, and more particularly, to a method of restricting viewing of a specific video playing screen for setting a viewing grade of a playing screen when playing a videotape and limiting viewing of a specific screen during playing a videotape.

In general, a VCR is a device for recording a video signal and an audio signal on a magnetizable video tape, and reproducing the video signal and an audio signal when necessary to view the video signal through a display means such as a CRT or a TV. As it is.

The conventional VCR shown in FIG. 1 includes a microcomputer 600 which generally controls the operation of the VCR by manipulation of the keypad 900C or the remote controller 900B, and stores data to be processed by the microcomputer 600. The tuner 100 receives a broadcast signal of a channel selected by the tuner voltage output from the microcomputer 600, the tuner 100 from the antenna ANT, and the broadcast signal received from the tuner 100. IF detector 200 for detecting a frequency, and a video tape (cassette) that is operated in accordance with the operation control signal output from the microcomputer 600, the video detector (cassette) seated in the video technology through the head (H) A recording unit 300 for recording a signal output from the 200 and an operation control signal output from the microcomputer 600 (generally recoil with respect to the recording unit 300), and the video mounted on the video tech Tape (cassette) OSD for outputting a corresponding character image to receive the output information through the playback unit 400 to access the recorded signal through the head (H) and output the character information output from the microcomputer 600 It is largely composed of a generator 700, a signal processor 800 for processing the signal output from the playback unit 400 and the jitter output from the OSD generator 700 to pass to the TV or CRT side. .

In the VCR configured as described above, since the playback operation is performed without classifying the video tape, that is, adult, child, or youth, children can watch a violent video. This requires careful consideration of parents. On the other hand, even if parents care about the regulation of videotape ratings, there are some harmful parts to programs that teens and children can watch. There is a problem that it is difficult to prohibit and difficult to watch as it is.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a method for restricting viewing of a specific video playback screen to set a viewing grade of a playback screen when playing a videotape and to restrict viewing of a specific screen during video playback. There is.

1 is a block diagram of a general VCR

2 is an illustration of technical concepts used in the present invention.

3 is a flowchart of a parental control process of a specific video playback screen according to the present invention;

Explanation of symbols for main parts of the drawings

ANT: antenna H: head

100: tuner 200: IF detector

300: recording unit 400: playback unit

500: memory 600: microcomputer

700: OSD generator 800: signal processor

900C: Keypad 900B: Remote Control

A feature of the present invention for achieving the above object is a video playback method in a VCR that reproduces a video tape seated on a video tech and outputs the video signal and an audio signal separately, wherein the video is recorded in the video tape. A first step of recording an adult image of a certain part in a corresponding control track of a video tape with a specific code, a second step of registering a password for parental level restriction when a video tape is played by a user, and an arbitrary video tape A third process of requesting a user to input a password during a playback operation after seating on the video tech, a fourth process of comparing the password input by the third process with a password registered through the second process, and If it is determined that the two passwords are not the same through the fourth process, the first and second The through image of the partial write to a specific code is to not play a fifth step of reproducing only the image of the other part.

As an additional feature of the present invention for achieving the above object, the first process includes a first step in which a maker of a video tape determines whether an image above a certain reference is present among images of a program that is recommended during production of the video tape; The second step of recording a specific code using a CTL pulse on the control track of the position associated with the video track in which the image is stored when the portion of the image is determined to be above the specified reference in the first step.

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

2 is an exemplary view illustrating a technical concept used in the present invention, and FIG. 3 is a flowchart of a parental control process of a specific video playback screen according to the present invention.

First, the technical concept for parental control used in the present invention, as shown in the accompanying FIG. 2, first of all the part where the producer uses the CTL pulse on the control track CT to store the sensational or violent image. A specific code is inputted and stored at the beginning and end of the video track VT in advance.

In addition, the user registers a password for the reproduction of the adult screen portion, which is a criterion for determining whether the current user is authorized by the user.

Thereafter, when the microcomputer 600 receives a video playback request from the user, the microcomputer 600 requests the user to input a password and then inputs the password through the process of step S101.

The microcomputer 600, which has received the password through the process of step S101, compares the password with the user preset password in step S102 to determine whether the identity is the same. At this time, if it is determined in step S102 that the passwords are identical to each other, the process proceeds to step S103, where the entire tape is rewound to perform normal playback operation.

On the other hand, if it is determined in step S102 that the passwords are not identical to each other, the flow advances to step S104 where only the non-adult part of the tape is reproduced.

That is, as shown in FIG. 2 attached to the control track CT through the playback unit 400 while performing a normal playback operation, if a CTL pulse indicating an adult screen portion is detected, this part is skipped. Will play.

Providing a method for restricting viewing of a specific video playback screen according to the present invention operating as described above may be harmful to the youth partly because of the program that can be viewed by the youth or children, it is also difficult to prohibit viewing as a whole The problem that it becomes difficult to watch as it is can be solved.

Claims (2)

A video playback method in a VCR that plays back a video tape seated on a video tech and outputs the video and audio signals separately. A first step of recording an adult image of specific portions of an image of a program stored on the video tape with a specific code in a corresponding control track of the video tape; A second step of registering, by the user, a password for parental level restriction upon playing the videotape; A third step of placing an arbitrary video tape on the video tech and requesting a user to input a password during a playback operation; A fourth process of comparing the password input by the third process with a password registered through the second process; And And if it is determined that the passwords are not the same through the fourth process, a fifth process of reproducing only the image of the other portion without reproducing the image of the portion recorded with the specific code through the first process. How to restrict viewing of certain video playback screens. The method of claim 1, wherein the first process comprises: a first step of a video tape maker determining whether an image above a certain reference is present among images of a program which is recommended during production of the video tape; And a second step of recording a specific code using a CTL pulse on a control track at a position associated with a video track in which the corresponding video is stored when storing a portion of the image determined to exist above a certain reference in the first step. How to limit the viewing of a particular video playback screen.