KR20040059229A - System for controlling rating limit using iris cognition in digital TV receiver - Google Patents

Abstract

PURPOSE: A rating control system of a digital TV receiver using iris recognition is provided to recognize the iris of the eye of a user to change a rating limit lock/unlock state. CONSTITUTION: A rating control system of a digital TV receiver includes a camera(102), a storage unit(108), an iris recognition unit(100), and a digital TV receiving unit(200). The camera photographs the iris of the eye of a user. The storage unit stores iris data obtained using the camera and information about the user authorized to change a rating limit lock/unlock state. The iris recognition unit compares the iris data of the user, obtained using the camera, with iris data and user information previously stored in the storage unit to judge whether the user of the currently input iris data is authorized to change a rating limit lock/unlock state. The digital TV receiving unit changes the rating limit lock/unlock state of the digital TV receiver at the user's request when the iris recognition unit judges the user to be authorized to change the rating limit lock/unlock state.

Description

System for controlling rating limit using iris cognition in digital TV receiver

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital television (DTV) receiver, and in particular, a user sets a rating limit on a DTV receiver in order to restrict viewing of others according to rating information provided by digital television (DTV) broadcasting. When released, the present invention relates to a system that enables a user to change the grade limit lock / unlock state of a DTV receiver using biometric information of a user.

As the transition from analog broadcasting to digital broadcasting has expanded, it is possible to transmit not only a program that is broadcast with the expansion of a broadcast channel but also a large number of data such as a program guide, rating information, and advertisement. In particular, in current digital broadcasting, rating information is transmitted to each program, which is to prevent a user who does not match the rating from viewing the rating information of the corresponding program.

Currently, the DTV receiver will lock the password using a password and require the user to re-enter the appropriate password again in order to enter the menu for viewing or adjusting the rating. have.

However, this method is not only inconvenient for the user to remember the password at all times, but also if the password is lost, contact the call center or find the service manual for the master password. You must find out. Also, in order to prevent older children and inappropriate users from changing the DTV receiver's rating lock / unlock status, passwords must be changed periodically, but the average user tends to continue to use a consistent password. The password is at risk of being stolen, so there is no countermeasure for the case where an improper user (eg a child) steals the password to watch a program that exceeds the rating limit. Therefore, the user has a hassle to change the password periodically to prevent such a case.

The present invention is to solve the above problems, an object of the present invention is to recognize the user's iris when the user sets the rating limit (Rating Limit) in the DTV receiver according to the rating information provided by the DTV broadcast An object of the present invention is to provide a system for changing a class limit lock / unlock state of a DTV receiver.

1 is a block diagram of a digital TV receiver for iris recognition according to the present invention

2 is a flowchart showing an example of a rating control method using iris recognition in a digital TV receiver according to the present invention.

Explanation of symbols for main parts of the drawings

100: iris recognition unit 101: lighting light emitting diode

102: camera 103: distance measuring unit

104: light emitting diode driver 105: iris image processing unit

106: display unit 107: certification comparison unit

108: authentication data storage unit 109: iris image storage unit

110: authentication result notification unit 111: data input unit

200: DTV receiver

In order to achieve the above object, a rating control system using iris recognition of a DTV receiver according to the present invention includes a camera capable of capturing an iris of the user, iris data captured by the camera, and a rating limit lock inputted through the user. / Storage unit storing user information having the authority to change the unlock state, and the iris data currently input by comparing the iris data of the user photographed by the camera with the iris data and user information previously registered in the storage unit An iris recognition unit that determines whether the user of the user is a legitimate user who has the authority to change the grade limit lock / unlock state, and the rating limit lock of the DTV receiver according to the user's request And a DTV receiver for changing the unlock state.

The iris recognition unit outputs an iris image processing unit for processing a feature pattern of an iris image photographed by the camera according to an image analysis, and outputs from the iris image processing unit if the user is currently authenticating for a grade limit lock / unlock state control. An authentication comparison unit for determining whether the iris data matching the iris data is already stored in the storage unit, and if so, whether the user of the iris data is a legitimate user authorized to change the grade limit lock / unlock state; And an authentication result notifying unit notifying the result of the determination to the DTV receiving unit.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, By the technical spirit of the present invention described above and its core configuration and operation is not limited.

In the present invention, when a user purchases and uses a DTV receiver for the first time, the user stores an iris image of himself and his family, and stores each user's name, age, and other information as necessary. If you select a iris that can be accessed from the stored iris data after setting a rating limit or a password in the DTV receiver, only the users of the iris are recognized as legitimate users, and only those legitimate users are locked / locked in the DTV receiver. You can change the unlock status.

Here, the iris refers to a peripheral portion outside the pupil from the inside of the black masturbator and is composed of muscles that control opening and closing of the pupil. After all, the iris is a muscle that controls the amount of light that enters the eye from the outside world. It is known that the human eye is formed until about 6 months of gestation, and at that time, a hole is opened in the part of the pupil, and a weight (皺 = wrinkle) is generated outward from the opening (瞳) toward the chaotic phase. The growth of this weight usually stops after a few years of life, and does not change over its lifetime, forming a pattern of its own. This pattern is different for the right and left eyes of the same person and also for identical twins.

On the other hand, if the user wants to reset the rating limit or release the lock on the DTV receiver to watch a program that exceeds the rating limit, the user can bring the iris close to the camera installed in the DTV receiver. The iris image captured by the camera allows the DTV receiver to authenticate that the user is a legitimate user who can release the lock, so that the user can change the status if the user has the authority to change the rating lock / unlock status. Do not release the lock.

For example, to prevent younger adolescents from watching inappropriate TV programs, parents can only set their own iris in the access list when they set the DTV receiver's TV rating and then set the lock. have. Then, if the parent wants to watch a TV program that exceeds the rating limit while watching TV, or wants to temporarily unlock it for other reasons (temporary unlock), select the appropriate menu from the DTV receiver's lock / unlock menu and then enter the DTV receiver. By bringing the iris to the installed camera, the DTV receiver recognizes the parent's iris and releases the lock of the DTV receiver. Meanwhile, when the power of the DTV receiver is turned off and then on again, the class limit lock state of the DTV receiver is maintained again.

On the other hand, when children try to watch a TV program that exceeds the parental ratings, their children cannot watch the program because their iris data cannot have access to the lock / unlock state change of the DTV receiver.

1 is a block diagram illustrating a schematic configuration of a digital TV receiver according to the present invention, and an iris recognition unit 100 for determining whether a user is a legitimate user who can change a status of a restricted / locked state by recognizing an iris of a user. When the user is determined to be a legitimate user in the iris recognition unit 100, the user is divided into a DTV receiver 200 for changing the grade limit lock / unlock state of the DTV receiver according to the user's request.

To this end, the iris recognition unit 100 of the DTV receiver of the present invention is equipped with a camera 102 capable of capturing the iris of a person to be recognized, and emits light for illumination on the left and right sides of the camera 102 based on eyes. Diode 101 is provided. Here, the camera 102 may photograph the iris of the user in various ways. For example, the user can directly photograph the iris by holding the camera 102 by hand, the face approach by which the user approaches the camera 102 to photograph the iris, and the camera 102 is connected to the face of a person. There is an automatic method for capturing an eye image suitable for iris recognition by performing eye rotation, zooming, and focusing automatically. In the present invention, there is no limitation on the iris photographing method.

In addition, the authentication data storage unit 108 includes the user information having the authority to lock / unlock the class restriction of the DTV receiver, and the user inputs the data input unit 111 (eg, a remote control unit, a mouse, a keyboard, or the like). The personal information input through the iris is stored, and the iris image storage unit 109 stores iris data of people registered in advance through the iris recognition unit 100. In this case, the authentication data storage unit 108 may store information on the user's and family's identities, and the iris image storage unit 109 may store iris data of all family members. In this case, the authentication data storage unit 108 and the iris image storage unit 109 may be configured as one memory or may use each memory. In addition, the user may pre-set irises having access rights to change the grade limit lock / unlock state, and may allow the system to automatically identify irises having access rights using iris data and personal information.

In addition, the iris recognition unit 100 processes the output image signal of the camera 102 to extract the iris image to process according to the image analysis, and also to control the lighting of the light emitting diode 101 for lighting control signal The distance from the camera 102 to the eye is measured using an iris image processing unit 105 for outputting a light emitting device, a light emitting diode driver 104 for lighting the light emitting diode 101 according to the lighting control signal, and infrared rays. It is configured to include a distance measuring unit 103.

That is, the illumination light emitting diode 101 emits light according to a lighting control signal output from the iris image processing unit 105 so that the camera 102 can image the iris by irradiating light to the user's eyes. The distance measuring unit 103 may measure the distance from the camera 102 to the eye and then activate the iris recognition unit 100 or automatically control zooming and focusing according to the distance value. Alternatively, the light intensity or on / off of the light emitting diode 101 may be adjusted through the light emitting diode driver 104.

In addition, the iris recognition unit 100 indicates whether the iris data output from the display unit 106 and the iris image processing unit 105 indicating whether the iris is recognized is iris data having the authority to change the grade limit lock / unlock state. And an authentication result notifying unit 110 for notifying the DTV receiver 200 of the comparison result of the authentication comparing unit 107.

The display unit 106 may notify the iris recognition result by a voice or an alarm using an existing speaker, or display the iris recognition result by using the display screen or an external indicator of the DTV (On Screen Display). It can also be indicated by text. In this case, the display unit 106 may inform the user of the iris recognition result, whether the iris is acquired, an error message, or an instruction.

At this time, the iris data processed for image analysis by the iris image processing unit 105 is output to the iris image storage unit 109 and stored, or to the authentication comparison unit 107 for authentication. That is, the iris image processing unit 105 converts the feature pattern of the iris image captured by the camera 102 into data using an image processing technique and outputs the data to the iris image storage unit 109 or to the authentication comparison unit 107. Output

If the user is registering the iris, the iris data output from the iris image processing unit 105 is stored in the iris image storage unit 109, and the iris is being authenticated for the grade limit lock / unlock state control. The data is output to the authentication comparison unit 107. Whether the user is currently registering the iris or performing the authentication process can be selected by the user through a menu.

When the iris data is output from the iris image processing unit 105, the authentication comparison unit 107 may compare the previously stored iris data and user image information to lock / unlock the grade restriction of the DTV receiver. Determine if the person is authorized. For example, in the case where the access right is selectively set to the iris data stored in the iris image storage unit 109, the iris data currently photographed and input through comparison with the iris data stored in the iris image storage unit 109 is set. It may be determined whether the iris data has access authority. Alternatively, whether the iris data corresponding to the currently captured and input iris data is stored in the iris image storage unit 109 is first determined, and if stored, the user information stored in the authentication data storage unit 108 is used. It is also possible to determine whether the iris data is the iris data of a legitimate user with access authority.

Then, the authentication result notification unit 110 notifies the DTV receiver 200 of the determination result of the authentication comparison unit 107. That is, when it is determined that the authentication comparison unit 107 is the iris data of the user having the access right, the DTV receiver 200 grants the user access right to change the status limit lock / unlock state. Disable access.

In this case, in FIG. 1, the DTV receiver 200 provides general functions of the DTV receiver in addition to allowing or disabling access to change the grade limit lock / unlock state, and receives broadcast data to receive video and voice. In addition, the general configuration for processing various data is omitted.

FIG. 2 is a flowchart illustrating an embodiment of a method of changing a grade limit lock / unlock state using iris recognition in a DTV receiver configured as shown in FIG. 1. For convenience of description in FIG. 2, the authentication data storage unit 108 stores user and family identification information in advance, and the iris image storage unit 109 may change the grade limit lock / unlock state (for example, For example, it is assumed that at least one or more iris data is stored including iris data of a parent).

That is, when the user photographs his iris image by using the camera 102 provided in the iris recognition unit 100 of the DTV receiver, the iris image processing unit 105 processes the image according to the analysis of the image and compares the authentication comparison unit 107. (Step 201). Then, the authentication comparison unit 107 compares the iris data inputted with the iris data of the persons stored in the authentication data and the iris image storage unit 108 and 109 (step 202), and matches the iris data currently photographed and input. It is determined whether the iris data is stored and if the user of the iris data is a legitimate user who has the authority to change the class restriction lock / unlock state of the DTV receiver (step 203).

If the determination result is a legitimate user, the authentication result notifying unit 110 notifies the DTV receiving unit 200 a message to change the state to the grade limit lock / unlock state changing mode (step 204), and thus the DTV as desired by the user. The rating limit lock / unlock state of the receiver may be changed (step 205). If it is determined that the user is not a legitimate user, the authentication result notification unit 110 transmits a notification message to the DTV receiver 200 that the state cannot be changed. The state cannot be changed (step 206).

In this case, if the user is a legitimate user, a message (eg, voice, beep, OSD text, etc.) indicating that the status has been changed to the status limit lock / unlock status change mode is displayed. Users can be notified via. Here, the description of the general operations of the DTV receiver 200 not changing or not changing the grade limit lock / unlock state by being notified of the authentication result is omitted.

On the other hand, the present invention, the personal information and iris data of the family previously stored in the authentication data storage unit 108 and the iris image storage unit 109 can be used to perform other functions other than the grade limit lock / unlock state change function. Can be.

In addition, the present invention may control the grade limit lock / unlock state of the digital TV using not only the iris but also other biometric information such as a fingerprint and a voice.

As described above, according to the rating control system using the iris recognition of the digital TV according to the present invention, the iris of the user who has the authority to change the rating limit lock / unlock state of the digital TV is registered in advance, and then through the iris recognition. By allowing the user to change the rating lock / unlock status only when determined to be a legitimate user, the user does not need to set a password to change the rating lock / unlock status of the DTV receiver, and also needs to remember the password individually. You can also lose the password and the hassle of having to find a Master Password.

Also, in order to prevent older children and inappropriate users from changing the DTV receiver's rating lock / unlock status, passwords should be changed periodically, but the average user tends to continue to use a consistent password. Although the password is exposed to the risk of being stolen, when the iris recognition of the present invention is applied, the password can be prevented in advance, and there is no need to change the password periodically.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (2)

In the rating control system of a digital TV receiver having a rating limit setting function, A camera capable of photographing an iris of a user; A storage unit for storing iris data photographed by the camera and user information having the authority to change the grade limit lock / unlock state input through the user; By comparing the iris data of the user photographed by the camera with the iris data and user information previously registered in the storage unit, it is determined whether the user of the currently input iris data is a legitimate user who has the authority to change the grade limit lock / unlock state. Determining an iris recognition unit; And Rating control using iris recognition in a digital TV receiver, comprising: a DTV receiver configured to change the rating limit lock / unlock state of the DTV receiver according to the user's request when the user is determined to be a legitimate user in the iris recognition unit; system. The method of claim 1, wherein the iris recognition unit An iris image processor configured to process a feature pattern of an iris image captured by the camera according to an image analysis; If the current user is authenticating for the status limit lock / unlock state control, whether the iris data corresponding to the iris data output from the iris image processing unit is already stored in the storage unit, and if so, the user of the iris data. An authentication comparison unit that determines whether the user is a legitimate user who has authority to change the status limit lock / unlock state, And an authentication result notification unit for notifying the result of the determination to the DTV receiver.