KR200170494Y1 - Television for internet connect - Google Patents

Abstract

The present invention receives the video and audio signals of a broadcast program, converts them digitally, quantizes them, and outputs them.Then, they are firstly compressed by the MPEG technique and transmitted to a wireless transmitter. In particular, the present invention relates to a broadcast receiver corresponding to a digital TV broadcasting system that provides information about a digital television broadcasting system, and particularly, a modem (100) for connecting to a public communication network and a trunk line or for connecting to the Internet through a dedicated line of the Internet. The modem controller 100A for controlling the modem 100 for connection, the Internet connection unit 400 for operating the modem controller 100A under specific conditions to be connected to the Internet only under specific conditions, and the broadcasting station side. When the Internet site information is detected by detecting the Internet information provided by the user to control the Internet connection unit 400 Search unit 500 that searches for whether data selected by a user exists in the Internet connected through modem 100 as Internet information decoder 300 and Internet access unit 400 operate, and downloads the corresponding data. And a data storage unit 600 for storing the search data output from the search unit 500.

Description

Internet Search Receiver in Broadcast Data Second Compression Transmission Method

The present invention relates to a broadcast receiver corresponding to a broadcast method that transmits recorded programs to be broadcast within a normal broadcast time through secondary compression of digital broadcast data. The present invention relates to an Internet search receiver in a broadcast data secondary compression transmission method for extracting related information in advance and automatically executing the extracted site to quickly provide information when a viewer wants.

General purpose television broadcast signals are analog signals but are gradually becoming digital. This is to solve the requirements of users requesting a high picture quality of the screen, and as digitalized, there is an advantage that not only the picture quality can be improved but also the quality of additional services.

A brief description will be given with reference to FIGS. 1 and 2 attached to a broadcasting method of a broadcasting station for a digital television broadcasting and a configuration of a television broadcasting receiver which are being developed in the above-described trend.

1 is a simplified configuration of a broadcasting facility for conventional digital television broadcasting. The quantization unit 10 receives a digital signal of a broadcast program and a digital signal, quantizes the digital signal, and then quantizes the digital signal. MPEG compression unit 11 for compressing the data output by the compression method according to the MPEG method to reduce the amount of transmission data, and outputs a variety of broadcasting information and the MPEG compression unit 11 that is transmitted from broadcasting stations other than the broadcast program A multiplexer 12 for receiving data output from the multiplexer and outputting the multiplexed signal, an encoder 13 for receiving the data output from the multiplexer 12, encoding the data outputted from the multiplexer 12, and the encoder 13 It consists of a PM modulator 14 which modulates and transmits the output data to a wireless public telecommunication network.

The configuration of the digital TV corresponding to the broadcasting facility configured as described above includes a tuner 20 for tuning a broadcast corresponding to a specific frequency among the broadcast channels received through the antenna, as shown in FIG. A PM demodulator 21 for demodulating broadcast data received and tuned through the tuner 20, a decoder 22 for receiving and decoding demodulated data output from the PM demodulator 21, and the decoder. Error correction 23 for correcting or compensating for error data generated in the process of receiving data output from 22 and being transmitted through a wireless public communication network, and data corrected and output by error correction 23 The MPEG processor 24 expands the compressed data by receiving the input signal, and converts only the data related to the image from the data output from the MPEG processor 24 into an analog signal and converts the signal into an analog signal. The video signal inverse quantization unit 25 and the audio signal inverse quantization unit 26 which receives only data related to audio out of the data output from the MPEG processing unit 24 and converts it into an analog signal and outputs it to the speaker SP side. It consists of.

Looking briefly at the operation of the TV station side and the TV receiver side according to the conventional digital broadcast configured as described above, the TV station side information on the video signal and audio signal for a specific broadcast program and information about various services provided to the viewers on the broadcast station side. Uses broadcast information as a source. In this case, since the video signal and the audio signal are in an analog state, they are converted into digital data through the quantization unit 10. Since the data amount becomes considerably large, the video signal and the audio signal are compressed by the MPEG compression unit 11.

In general, taking an image signal as an example, the amount of information of an image signal used as a source is about 4.2 MHz in the analog state, and when the source is digitized, it is changed to about 20 MHz.

Therefore, since the digitized data is transmitted as it is, there is a significant problem due to the limitation on the band of the allocated frequency according to the current TV broadcast, so that data compression according to the MPEG method is performed. In general, when data compression is performed according to MPEG, data compression is performed at about 6 MHz.

The multiplexer 12 multiplexes and outputs the data output from the MPEG compressor 11 and various broadcast information transmitted from a broadcasting station other than the broadcast program. The data output from 12 is encoded by the encoder 13 to suppress an error. Since the data output from the encoder 13 is digital data, it is pulse-modulated by the PM modulator 14 and transmitted to the wireless public communication network through the antenna.

The broadcast data transmitted according to the above-described process may be provided with normal video and audio through the reverse process of the above-described process by the TV receiver configured as shown in FIG. 2.

However, as the society has been diversified, specialized, and personalized, working forms are diversified, and people are unable to watch TV broadcasts in the normal broadcasting time. Therefore, although a certain program is recorded and watched through a VCR, such recording process is quite cumbersome, and there are also people who do not watch TV at all, and the complaints of these people are rising.

In order to resolve such complaints, the method proposed by the present inventors and the applicant transmits recorded programs to be broadcast within the normal broadcast time through the second compression of the digital broadcast data as shown in FIG. As compared with the conventional broadcast method shown in FIG. 1, an MPEG compression unit is added between the encoder 13 and the PM modulator 14. As shown in FIG.

In this case, the second MPEG compression unit 100 operates at a non-regular broadcast time zone, that is, from AM 02:00 to AM 05:00 or PM 12:00 to PM 05:00, and operates at other broadcasting time zones. I never do that.

On the other hand, when a user who needs the broadcast method as described above wants to obtain Internet information about the broadcast, it is difficult to use a broadcast receiver according to the broadcast method.

An object of the present invention for solving the above problems is to extract information about Internet sites from the signals received by digital compression broadcasting in advance and to automatically run the extracted sites to provide information quickly when viewers want An Internet search receiver in a data secondary compression transmission method is provided.

1 is a conventional simplified configuration diagram of a broadcasting facility for digital television broadcasting

2 is a diagram illustrating a conventional simplified configuration of a digital broadcast receiver.

3 is a simplified block diagram of a broadcasting facility in accordance with the broadcast data secondary compression transmission method;

4 is an Internet search receiver according to the present invention corresponding to the broadcasting method shown in FIG.

<Explanation of symbols for main parts of drawing>

10: quantization unit 11: MPEG compression unit

12: multiplexer 13: encoder

100: secondary MPEG compression unit 14: PM modulator

A feature of the present invention for achieving the above object is, by receiving the video signal and the audio signal of the broadcast program, digital conversion and quantization to output the quantization and then the first and second compression by a compression technique according to the MPEG method wireless transmission unit A broadcast receiver corresponding to a digital TV broadcasting system which transmits to a side and provides information on an Internet site of a corresponding broadcast, comprising: a modem for connecting to a public communication network and a trunk line or for connecting to the Internet through a dedicated line of the Internet; A modem controller for controlling the modem for access to the internet, an internet connection for operating the modem controller under a specific condition so that it can be connected to the internet only under a specific condition, and internet information provided by a broadcasting station. Detect the Internet site information when the Internet connection is detected Internet information decoder for controlling the unit, a search unit for searching whether there is data selected by the user in the Internet connected through the modem as the Internet access unit operates, and downloads the data, and the search unit 500 It includes a data storage for storing the search data output from the.

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

4 shows a broadcast receiver according to the present invention, demodulating a tuner 20 for tuning a broadcast corresponding to a specific frequency among broadcast channels received through an antenna and broadcast data tuned and received through the tuner 20. A PM demodulator 21, a storage unit 200A for receiving and storing demodulated data output from the PM demodulator 21, and a control unit for controlling storage and access of data to the storage unit 200A ( 200B) and an MPEG decompressor 200 which receives demodulated data output from the PM demodulator 21 or data accessed from the storage 200A and performs data decompression for the second compression of FIG. 3. And a decoder 22 that receives and decodes the data output from the MPEG decompressor 200, and error data generated in the process of transmitting the data output from the decoder 22 through a wireless public communication network. Correction or The upper and lower sides of the MPEG processor 24, the MPEG processor 24 which receives data corrected by the error correction 23 and outputs the compressed data, and the data output from the MPEG processor 24 A video signal dequantizer 25 that receives only data related to an image and converts it into an analog signal and outputs it to the CRT side, and receives only data related to audio from the data output from the MPEG processor 24 into an analog signal The voice signal dequantization unit 26 outputted to the (SP) side, the modem 100 for connecting to the public communication network through a trunk line or for connecting to the Internet through a dedicated line of the Internet, and for connecting to the Internet. Modem controller 100A for controlling the modem 100, and operation of the modem controller 100A to operate under a specific condition so that the system can be connected to the Internet An Internet information decoder 300 for receiving the data output from the error correction unit 23, the Internet information decoder 300 for searching for information on the Internet site among the broadcasting information transmitted from the broadcasting station, and the Internet As the connection unit 400 operates, the search unit 500 searches for whether data selected by a user exists in the Internet connected through the modem 100 and downloads the corresponding data from the search unit 500. It is composed of a data storage unit 600 for storing the output search data, and a data converter 700 for outputting to the CVBS to access the data stored in the data storage unit 600 to display through the CRT have.

Referring to the preferred operation example according to the present invention configured as described above in detail.

First, it is assumed that information about an Internet site that stores specific information about a broadcast program transmitted by a broadcasting station is transmitted as broadcast information.

The tuner 20 tunes a broadcast corresponding to a specific frequency among broadcast channels received through the antenna, and the data received on the tuned frequency is demodulated by the PM demodulator 21.

In this case, the data demodulated by the demodulator 21 is input to the first input terminal and the storage unit 200A of the MPEG decompression unit 200, which is input by the storage unit 200A according to the operation of the controller 200B. Data to be stored. In addition, the control unit 200B does not operate the MPEG decompression unit 200 when the user decides whether or not the current TV watching is desired to watch TV. As a result, all of the broadcast programs transmitted by the broadcasting station are stored in the compressed state.

On the other hand, when the user wants to access and view the data stored in the storage unit 200A, or when he wants to watch TV at the time when the data is stored in the storage unit 200A, the MPEG decompression unit 200 is the storage unit. The data accessed and outputted at 200A is input to the second data input terminal, and the MPEG compression is decompressed and output. The encoded data is decoded by the decoder 22 at this time.

The data decoded and output by the decoder 22 is subjected to error compensation according to a correction and compensation process for an error that may have been generated in the process of being transmitted through a wireless public communication network through the error correction unit 23. Lose.

Thereafter, the data corrected and output by the error correction unit 23 is MPEG processed by the MPEG processing unit 24 to decompress data, and the data output by the MPEG processing unit 24 dequantizes video and audio, respectively. The video signal dequantizer 25 and the audio signal dequantizer 26 are converted into analog signals and output through the CRT or the speaker SP.

At this time, the MPEG decompression unit 200 does not decompress during the normal broadcast time zone, and outputs data input to the first data input terminal to the decoder 22 without performing data decompression in the normal broadcast time zone.

In addition, while expanding and watching the compressed broadcast as described above, the Internet information decoder 300 detects whether the information about the Internet site is provided as the broadcast information from the error-corrected data. This alerts the (200B) side.

Accordingly, the microcomputer 200B drives the modem 100, the modem controller 100A, and the interconnect connector 400 to access the Internet. When connected to the Internet through the above-described process, the search unit 500 drives to search for a site currently connected to the Internet, and downloads data from the site detected by the Internet information decoder 300 to the data storage unit 600. Save it.

Subsequently, when the user requests the display of the stored data, the data stored in the data storage unit 600 may be an RGB signal or a signal of a CVBS state to be displayed on the CRT through the data converter 600. The output is converted.

By providing an Internet search receiver in the broadcast data secondary compression transmission method according to the present invention operating as described above, viewers who cannot watch TV broadcasts in the regular broadcast time zone can watch the broadcast except the live broadcast time in the irregular broadcast time zone, Get automatic search and display of internet information.

Claims (1)

Video signal and audio signal of broadcasting program are received, digitally converted, quantized, and then quantized, and then it is first and second-compressed by MPEG compression method and transmitted to wireless transmitter. In the broadcast receiver corresponding to the digital TV broadcasting system for providing a, A modem 100 for connecting to a public communication network and a trunk line or for connecting to the Internet through a dedicated line of the Internet; A modem controller (100A) for controlling the modem (100) for access to the Internet; An internet connection unit 400 for operating the modem controller 100A under a specific condition so that the modem controller 100A can be connected to the Internet only under a specific condition; An internet information decoder (300) for detecting internet information provided by a broadcasting station and controlling the internet access unit (400) when internet site information is detected; A search unit 500 which searches for whether data selected by a user exists in the Internet connected through the modem 100 as the Internet access unit 400 operates and downloads the data; And Internet search receiver in the secondary compression transmission method comprising a data storage unit for storing the search data output from the search unit (500).