KR100964663B1 - Digital broadcasting receiver with security system and method for driving the same - Google Patents

Abstract

The present invention relates to a digital broadcast receiver and a driving method comprising a security system configured to store an external image photographed by an external camera on a storage medium and transmit the external image to a user to inform whether an external intruder is invaded. An external camera for photographing an external image and outputting an analog signal with respect to the external image; An A / D converter for receiving an analog signal output from the external camera and outputting a digital signal; A tuner which tunes a desired signal from an externally received RF signal and outputs the tuned signal; A demodulator for receiving a tuned signal output from the tuner and outputting a transport stream signal; An MPEG processor which receives a transport stream signal output from the demodulator and a digital signal output from the A / D converter and outputs an image, an audio signal and image data, respectively; A storage medium storing image data output from the MPEG processor; A modem for receiving image data stored in the storage medium through the MPEG processor and transmitting the received image data to an external receiver; A central processing unit for controlling the operation of the components; And a memory for storing data generated by the control of the central processing unit, additional data obtained from the transport stream signal, and the like.

External camera, A / D converter, video data, storage media, modem

Description

Digital broadcasting receiver with security system and method for driving the same}

1 is a block diagram of a digital broadcast receiver configured with a security system according to the present invention

2 is a driving flowchart illustrating a method of driving a digital broadcast receiver configured with a security system according to the present invention.

* Explanation of symbols on the main parts of the drawings

11: external camera 12: A / D converter

13 tuner 14 demodulator

15: MPEG processing unit 16: storage medium

17 modem 18 central processing unit

19: memory

The present invention relates to a digital broadcast receiver, and more particularly, a digital broadcast receiver and a drive configured with a security system configured to store an external image photographed by an external camera and transmit the external image to a user to inform whether an external intruder is invaded. It is about a method.

In general, a PVR (Private Video Recorder) is a device that can store / play digital broadcast programs using a storage medium such as a hard disk.

Recently, a digital TV or a digital broadcast receiver (Set-Top) having a function of storing / playing a digital broadcast program using a storage medium such as a hard disk has emerged. The PVR allows a user to broadcast a broadcast program in real time. Pause / Replay allows you to pause and watch multiple programs at the same time, allowing you to watch your music independently of the broadcast schedule.

However, the digital broadcast receiver having a storage medium such as the PVR is mainly used only in a limited area for recording a broadcast program that could not be watched when the user was away. It has been used inefficiently compared to storage capacity.

The present invention is to solve such a conventional problem, the digital broadcast receiver and drive configured with a security system configured to store an external image taken by using an external camera in a storage medium, to inform the user of the intrusion of an external intruder The purpose is to provide a method.

A digital broadcast receiver configured with a security system according to the present invention for achieving the above object comprises: an external camera for capturing an external image and outputting an analog signal for the external image; An A / D converter for receiving an analog signal output from the external camera and outputting a digital signal; A tuner which tunes a desired signal from an externally received RF signal and outputs the tuned signal; A demodulator for receiving a tuned signal output from the tuner and outputting a transport stream signal; An MPEG processor which receives a transport stream signal output from the demodulator and a digital signal output from the A / D converter and outputs an image, an audio signal and image data, respectively; A storage medium storing image data output from the MPEG processor; A modem for receiving image data stored in the storage medium through the MPEG processor and transmitting the received image data to an external receiver; A central processing unit for controlling the operation of the components; And a memory for storing data generated by the control of the central processing unit or additional data obtained from the transport stream signal.

In addition, a method of driving a digital broadcast receiver configured with a security system according to the present invention for achieving the above object includes a first step of capturing an external image; A second step of confirming whether a storage capacity of a storage medium for storing image data of the captured external image is sufficient; A third step of storing the image data on the storage medium; A fourth step of comparing the image data with previous image data stored immediately before the image data to determine whether there is a change between the image data and the previous image data according to a comparison result; A fifth step of transmitting the image data and previous image data to an external receiver; A sixth step of checking whether there is a transmission request signal for data of the external receiver; A seventh step of transmitting a first selection menu or a first voice announcement message to the external receiver; An eighth step of receiving a response to the first selection menu or a first voice announcement message from the external receiver; And a ninth step of transmitting image data of a specific time zone corresponding to the response to the external receiver.

Here, the storage medium is preferably a storage device such as a hard disk, DRAM or CD-RW.

Preferably, the modem uses a device capable of transmitting data by wire and wireless, such as a general telephone or a mobile communication terminal. The modem may also support internet communication or IMT2000.

The external receiver preferably uses a device capable of transmitting and receiving data such as a computer, an ordinary telephone, or a mobile communication terminal, which is capable of the Internet.

Hereinafter, a digital broadcast receiver configured with a security system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a digital broadcast receiver configured with a security system according to the present invention, and FIG. 2 is a driving flowchart illustrating a method of driving a digital broadcast receiver configured with a security system according to the present invention.

As shown in FIG. 1, a digital broadcast receiver configured with a security system according to the present invention includes: an external camera 11 for capturing an external image and outputting an analog signal for the external image; An A / D converter 12 for receiving an analog signal output from the external camera 11 and outputting a digital signal; A tuner 13 for tuning a desired signal among the RF signals received from the outside and outputting the tuned signal; A demodulator (14) for receiving a tuned signal output from the tuner (13) and outputting a transport stream signal; An MPEG processor 15 which receives a transport stream signal output from the demodulator 14 and a digital signal output from the A / D converter and outputs a video, audio signal and video data, respectively; A storage medium 16 for storing image data output from the MPEG processor 15; A modem 17 for receiving image data stored in the storage medium 16 through the MPEG processor 15 and transmitting the image data to an external receiver (not shown); A central processing unit (CUP) 18 for controlling the operation of the components; And a memory 19 for storing data generated by the control of the central processing unit 18, additional data obtained from the transport stream signal, and the like.

Hereinafter, referring to FIGS. 1 and 2, a method of driving a digital broadcast receiver having a security system configured as described above will be described in detail.

The external camera 11 captures an external image (1s), converts the external image into an analog signal, and outputs it to the A / D converter 12, and the A / D converter 12 converts the input analog signal into a digital signal. The signal is converted into a signal and output to the MPEG processor 15.

On the other hand, the tuner 13 receives the RF signal from the outside and outputs the tuned signal to the demodulator 14, the demodulator 14 outputs the input, the tuned signal to the MPEG processor 15. Then, the MPEG processor 15 receives the tuned signal and outputs a video and audio signal, and receives the digital signal to output video data.

Here, when the MPEG processor 15 includes an encoder, the MPEG processor 15 outputs video data by encoding the digital signal and outputting the image data. If not provided, video data is output by formatting the digital signal.

Here, since the image data is continuously stored in the storage medium 16, the storage capacity of the storage medium 16 is reduced (2s).

In particular, since the image data that has undergone the encoding process has a large data amount, the image data is set and stored in one of several methods according to the data amount.

That is, all image data is stored, only specific coded image data (eg, I-PICTURE) is stored, or the ratio of the amount of image data stored per hour is adjusted or stored, or the stored image data is stored at a specific time. After this, it is set to be deleted (3s).

If the storage capacity for the image data to be stored becomes insufficient as the image data continues to be stored (3s), the digital broadcast receiver may perform a second selection menu indicating that the storage capacity is insufficient through a modem 17 or The second voice announcement message is automatically transmitted to the user (10s).

The second selection menu or the second voice guidance message includes a total storage capacity and available storage capacity, a time amount of currently stored video data, and a content to delete or a time to delete.

Therefore, when the user receives and confirms information on the second selection menu or the second voice announcement message to an external receiver (not shown), and transmits a response to the second selection menu or the second voice announcement message, The digital broadcast receiver may properly maintain the storage capacity of the storage medium by receiving the transmitted response (11s) and deleting image data of a specific time zone corresponding to the received response (12s).

At this time, the user receives the second selection menu or the second voice guidance message transmitted from the modem 17 through an external receiver (not shown) such as a computer or a general telephone capable of internet, and the external A receiver (not shown) is used to transmit a command for deleting the image data to the modem 17.

Meanwhile, the digital broadcast receiver compares the image data stored in the storage medium 16 with previous image data stored immediately before the image data (4s), and if there is a difference between the image data and the previous image data, the user The image data and the previous image data are automatically transmitted to an external receiver (not shown) of 5s.

Here, the change between the image data and the previous image data is detected by the MPEG processor 15.

That is, when the MPEG processor 15 includes an encoder, the MPEG processor 15 may transmit the image data and the previous image data through a difference in a motion vector between the image data and the previous image data. Will detect the difference.                     

When the MPEG processor 15 does not include an encoder, the MPEG processor 15 may determine a difference between the previous image data and the current image data through a difference value between the previous image data and the current image data. Will be detected.

As such, when the MPEG processor 15 detects a difference between the image data and the previous image data, the image data and the previous image data stored in the storage medium are output to the modem 17, and the modem 17 Transmits the image data and the previous image data to an external receiver (not shown) of the user.

At this time, when the external receiver (not shown) is a display device capable of displaying an image such as a computer, the user observes the image corresponding to the image data and the previous image data, and the image of the image as in a general telephone. In the case of a device that cannot be displayed, information on image data and previous image data to be received through the voice guidance message, that is, information on the possibility of intrusion by an external intruder, is received by voice.

In particular, in the case of a device such as a mobile communication terminal (PCS), by negotiating with a mobile communication provider in advance, the user can receive information on the image data as a text message to his mobile communication terminal.

In addition, the image data stored in the storage medium 16 is transmitted to the user when there is a request for data transmission through an external receiver (not shown) of the user.

That is, when the user dials the modem 17 through an external receiver (not shown) such as a computer or a general telephone capable of the Internet from the outside, and transmits a transmission request signal for data, the digital broadcast receiver is set in advance. The first selection menu or the first voice announcement message is transmitted to the user's computer or telephone via the modem 17.

 The first selection menu or the first voice announcement message may include a start time of image data to be transmitted based on a time when a user makes a call using an external receiver (not shown) and sends a transmission request signal for data. It contains a question about the total time of the image data to be transmitted.

Thus, when the user responds to the first menu or the first voice announcement message using the external receiver (not shown), the modem 17 displays image data of a specific time zone stored in the storage medium 16, that is, The image data of a specific time zone corresponding to the user's response is received through the MPEG processor 15 and finally transmitted to the user.

At this time, when the user is connected through a display device capable of displaying an image, such as a computer, as an external receiver (not shown), the user observes the image corresponding to the image data. When connected through a device that cannot be displayed, information about the image data of the specific time zone to be transmitted through the voice guidance message is received by voice.

In particular, in the case of a device such as a mobile communication terminal (PCS), by negotiating with the mobile communication provider in advance, the user can receive information on the image data of the specific time zone as a text message to his mobile communication terminal.                     

In addition, the digital broadcast receiver provides a function of setting a plurality of reception numbers of an external receiver capable of receiving the video data.

That is, a plurality of reception numbers can be set by inputting n telephone numbers of ordinary telephones, p IP addresses of computers capable of internet access, and m telephone numbers of mobile communication terminals.

The digital broadcasting receiver having the security system according to the present invention as described above has the following effects.

First, the user can save the external image captured by the external camera in the storage medium, and if the user requests from the outside, the user can immediately transmit the desired image data by using the modem. Can be sent.

Second, if a difference is found in the external image photographed using the external camera, that is, if there is an external chip particle, the information about the image is automatically transmitted to the user so that the user can easily cope with the external intruder even when he is out. Can be.

Claims (17)

 An external camera which takes an external image and outputs an analog signal with respect to the external image; An A / D converter for receiving an analog signal output from the external camera and outputting a digital signal; A tuner that tunes a desired signal from an externally received RF signal and outputs the tuned signal; A demodulator for receiving a tuned signal output from the tuner and outputting a transport stream signal; An MPEG processor for receiving a transport stream signal output from the demodulator and a digital signal output from the A / D converter and outputting an image, an audio signal, and image data; A storage medium storing image data output from the MPEG processor; A modem for receiving image data stored in the storage medium through the MPEG processor and transmitting the image data to an external receiver; A central processing unit for controlling the operation of the components; And And a memory for storing data generated by control of the central processing unit or additional data obtained from the transport stream signal. And the central processing unit controls the stored image data to be deleted after a specific time passes. The method of claim 1, And the external receiver comprises a device capable of transmitting and receiving data over the Internet. The method of claim 1, And the digital broadcast receiver configured with the security system stores a plurality of IP addresses, a plurality of telephone numbers, and a plurality of mobile communication terminal telephone numbers. The method of claim 1, And said storage medium comprises a hard disk, DRAM or CD-RW. The method of claim 1, The modem is a digital broadcast receiver configured with a security system, characterized in that for using a device capable of transmitting data by wire and wireless. The method of claim 1, And the MPEG processor outputs the video data by formatting the received digital signal when the MPEG processor does not have an encoder. The method of claim 1, And when the MPEG processor comprises an encoder, the MPEG processor encodes an input digital signal and outputs the video data. The method of claim 7, wherein And the central processing unit controls all or a part of the encoded image data to be stored according to the amount of data of the encoded image data.  A first step of photographing an external image;  A second step of confirming whether a storage capacity of a storage medium to store image data of the captured external image is sufficient;  The third step of storing the image data on the storage medium:  A fourth step of comparing the image data with previous image data stored immediately before the image data and checking whether there is a change between the image data and the previous image data according to a comparison result;  A fifth step of transmitting the image data and the previous image data to an external receiver;  A sixth step of checking whether there is a transmission request signal for data of the external receiver;  A seventh step of transmitting a first selection menu or a first voice announcement message to the external receiver;  An eighth step of receiving a response to the first selection menu or a first voice announcement message from the external receiver; And  And a ninth step of transmitting any image data corresponding to the response to the external receiver. The method of claim 9, In the fourth step, if there is no change between the image data and the previous image data, the sixth step is executed. The method of claim 9, In the sixth step, when there is no request signal for data of the external receiver, the control unit returns to the first step and repeats the first to ninth steps. Driving method. The method of claim 9, The first selection menu or the first voice announcement message includes a start time of image data to be transmitted and a total time of the image data to be transmitted based on a time point at which an external receiver transmits a transmission request signal. A method of driving a digital broadcast receiver configured with a security system. The method of claim 9, If the storage capacity of the storage medium is not sufficient, the second step, Transmitting a second selection menu or a second voice announcement message to the external receiver; Receiving a response to the second selection menu or a second voice announcement message from the external receiver; Deleting data of a specific time zone corresponding to the response; And Executing the third step; and a method of driving a digital broadcast receiver configured with a security system. The method of claim 13, The second selection menu or the second voice announcement message includes a total storage capacity and available storage capacity, a time amount of currently stored image data, and a content to be deleted or a time amount to be deleted. A method of driving a configured digital broadcast receiver. The method of claim 9, And a change between the image data and the previous image data is detected by an MPEG processor. The method of claim 15, When the MPEG processor is provided with an encoder, the MPEG processor detects the difference between the image data and the previous image data through a difference in the motion vector between the image data and the previous image data. A method of driving a configured digital broadcast receiver. The method of claim 15, If the MPEG processor does not have an encoder, the MPEG processor determines whether the image data and the previous image data are the same, and if not, detects a change between the image data and the previous image data. A method of driving a digital broadcast receiver configured with a security system.

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