KR19990042791A - Home Shopping Using Satellite Broadcast Receiver - Google Patents

Abstract

The present invention provides an advertisement service for various products in a satellite broadcasting system, and relates to a home shopping method of a satellite broadcasting receiver in which a user can directly purchase various products online using the same. The bit stream includes various advertisement screen information for the home shopping, and the method further comprises: when the advertisement screen request signal for performing the home shopping is input during the normal viewing mode of the satellite broadcasting receiver, the bit is transmitted. Extracting the various advertisement screen information inserted into the stream; A second step of displaying the extracted advertisement screen information through a predetermined signal processing process and checking input of a selection key signal for any product included in the displayed various advertisement screens; A third step of reading the user information registered in the satellite broadcasting receiver when a selection key signal for the product is input; A fourth step of transmitting the read user information and the selected arbitrary product information to the home shopping service provider using the modem; And a fifth step of turning off the displayed advertisement screen when the key signal for ending the home shopping process is input and switching the operation of the satellite broadcasting receiver to the normal viewing mode.

Description

Home Shopping Using Satellite Broadcast Receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a home shopping method using a satellite broadcast receiver suitable for purchasing various products and direct purchase of each product using the satellite broadcast receiver.

In recent years, the broadcast method using satellites, which is rapidly expanding in use, is a method of providing a broadcast signal to a wider area by using a satellite (communication satellite) located at an altitude of about tens to hundreds of kilos on the surface of the earth. In this satellite broadcasting system, for example, an old band RF signal having a frequency band of 11.7 GHz to 12.0 GHz is used.

To this end, the antenna for satellite broadcasting reception is provided with a low noise blockdown converter for converting a radio frequency (RF) signal of a very high frequency into an intermediate frequency (IF) signal, which is a high frequency RF signal. Is converted into an IF (intermediate frequency) signal in the hundreds to thousands of MHz bands (e.g., 950 MHz-2050 MHz) receivable by a satellite broadcasting receiver (receiver).

Therefore, in the satellite broadcasting tuner provided in the satellite broadcasting receiver (receiver), the IF signal received through the low noise converter is inputted to tune the channel selected by the user. The satellite broadcasting receiver maximizes channel utilization, image and sound. Along with the improvement of signal quality and the ease of transmitting additional digital service data, the significant improvement of the user interface is a big advantage.

Meanwhile, in satellite broadcasting, a transmission signal of a digital broadcasting signal received from a satellite body through a fixed channel to a satellite broadcasting receiver is restored to a transport stream through a process of converting to an intermediate frequency, demodulating, and correcting an error. The stream includes program service data such as television broadcasting and data broadcasting, and program guide data.

That is, satellite broadcasting transmits data to the satellite broadcasting receiver through a packet aging based on the MPEG-2 standard, for example, in a packet stream of 188 bytes, in which the packet is mainly divided into a program guide packet and a program service data packet. Each packet includes 4 bytes of header information.

Here, the program guide packet includes a channel information packet having program combination table (PAT) information of N bits of program identifier (PID) (for example, 13 bits of program identifier) information indicating a program number of each channel; A program information packet having program map table (PMT) information of N-bit program identifier (PID) information meaning audio, video, text, etc. of a specific channel; and the program service data packet includes audio data of each channel. Packet, a video data packet, a text data packet, and the like, wherein program guide packets are continuously inserted and transmitted at intervals of several seconds between program service data packets.

Therefore, the satellite broadcasting receiver extracts program guide packets inserted at intervals of several seconds between program service data packets based on the header information (ie, PID) when the power is turned on by the user. (Ie, channel guide information and channel identifier (CID), program information and program identifier (PID) for each channel, text information and text identifier (TID), etc.) are stored in the memory area of the satellite broadcasting receiver. In more detail, the program guide information includes a channel ID, a program name, a start time and a broadcast time of a program, a grade of a program, a voice mode, and the presence or absence of paid broadcasting.

Then, the program guide information stored in the memory area is used to tune a specific channel selected in a transport stream received through a satellite channel when a specific channel is selected by the user, and also by the user. When the provision of broadcast program information of the channel (i.e., display) is requested, it is composed of a menu screen and displayed on the monitor.

In addition, such a general satellite broadcasting receiver includes a modem for charging according to paying program viewing, and when a user purchases a paying program to watch the paying program, the user information is transmitted to the service provider, so that charging processing for the corresponding program is automatically performed. do.

On the other hand, in recent years, the need for new service techniques for providing a variety of services, rather than simply providing a program guide service has emerged in reality. For example, satellite TV receivers provide a separate advertisement image and use a modem to provide users with on-line service, as a variety of product advertisements are realized through advertisement sites on the Internet. If a home shopping function for directly purchasing a product is provided, it will be possible to provide a wider variety of services to the user, thereby improving convenience of life.

Accordingly, the present invention has been made in view of the above-mentioned point, and provides a variety of advertisements in a satellite broadcasting receiver, and a user uses a satellite broadcasting receiver that can directly purchase an advertisement product using a modem mounted in the satellite broadcasting receiver. The purpose is to provide a shopping method.

In order to achieve the above object, the present invention receives a bit stream for a variety of broadcast programs provided from the satellite and displays them on a monitor through a predetermined signal processing process, using a modem when viewing a paid program of the various broadcast programs In the home shopping method using a satellite broadcasting receiver for transmitting the user information registered to the satellite broadcasting receiver to the pay program provider, the bit stream includes a variety of advertisement screen information for the home shopping, A first step of extracting the various advertisement screen information inserted into the bit stream when the advertisement screen request signal for performing the home shopping is input during the normal viewing mode of the satellite broadcasting receiver; A second step of displaying the extracted advertisement screen information through a predetermined signal processing process and checking input of a selection key signal for any product included in the displayed various advertisement screens; A third step of reading the user information registered in the satellite broadcasting receiver when a selection key signal for the product is input; A fourth step of transmitting the read user information and the selected arbitrary product information to the home shopping service provider using the modem; And a fifth step of turning off the displayed advertisement screen and switching the operation of the satellite broadcasting receiver to the normal viewing mode when a key signal for terminating the home shopping process is input. Provide a method.

1 is a block diagram of a satellite broadcast receiver suitable for applying a home shopping method using a satellite broadcast receiver according to an embodiment of the present invention;

2 is a view for explaining a home shopping method using a satellite broadcast receiver according to an embodiment of the present invention;

3 is a flowchart illustrating a process of performing a home shopping method using a satellite broadcast receiver according to an exemplary embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

105: key input unit 110: microcomputer

115: tuner and demodulator 120: MPEG decoder

125: video encoder 130: video synthesis unit

135: modem 140: smart card

145: memory unit 150: OSD unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

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

1 is a block diagram of a satellite broadcast receiver suitable for applying a home shopping method using a satellite broadcast receiver according to an exemplary embodiment of the present invention, and includes a key input unit 105, a microcomputer 110, a tuner, and a demodulator 115. , An MPEG decoder 120, a video encoder 125, an image synthesizer 130, a modem 135, a smart card 140, a memory 145, and an OSD unit 150.

First, in order to provide an improved channel information to a user according to the present invention, a predetermined predetermined advertisement packet carrying advertising data in addition to the broadcast signal of each channel on a transport stream received by the satellite broadcasting receiving system through a satellite receiving antenna. It is inserted at intervals and can be extracted based on the identifier (PID) information for these text advertisement packets.

Referring to FIG. 1, the key input unit 105 is composed of key metrics on a remote controller or its own panel to generate a corresponding key signal by a user's operation and provide it to the microcomputer 110, and the microcomputer 110 provides a key. Each control signal for generating a corresponding function is generated based on a key signal from the input unit 105. For example, the control unit includes a microprocessor that performs overall operation control of a receiver, and broadcasts a user from outside. When a channel selection signal is input, a corresponding tuning control signal is generated and provided to the tuner and demodulator 115, which will be described later, and program guide data (i.e., channel information and program of each channel) from the tuner and demodulator 115. Information), when received, is sequentially stored in a predetermined area of the memory block 112.

In addition, the microcomputer 110 may include a memory unit 145 to be described later, so that the tuner and demodulator 115 may extract the advertisement packet data when an advertisement screen request signal for home shopping is input from the key input unit 105. The advertisement packet identifier (PID) information stored in the terminal is extracted and transmitted to the tuner and the demodulator 115.

The tuner and demodulator 115 extracts additional information (i.e., channel information, program information, advertisement screen information, etc.) inserted on a transport stream received through an antenna when the satellite broadcasting receiving system is powered on, that is, each channel. Channel information packet data having program combination table (PAT) information of N-bit program identifier (PID) information, which means the broadcast program number of the N-bit program identifier (N-bit program identifier, meaning audio, video, text, etc. of a specific channel) Program information packet data having Program Map Table (PMT) information of PID information is extracted, and the extracted packet data is restored to a transport stream through a process of converting to intermediate frequency, demodulation, and error correction. Next, the memory is stored in the memory unit 145 through the microcomputer 110.

At this time, the channel information packet data and the program information packet data extracted from the transport stream and provided to the microcomputer 110 may tune a specific channel selected from the transport stream received through the satellite channel when a specific channel desired by the user is selected. It is also used as actual content information of a menu screen when the user is required to provide (i.e. display) a plurality of channel information and broadcast program information of each channel by the user.

In addition, the tuner and demodulator 115 broadcast channel selected by the user in a broadcast signal received through a broadcast signal receiver (i.e., a satellite receiver antenna), not shown, based on a tuning control signal provided from the microcomputer 110. The tuned broadcast channel signal is restored to a transport stream through a process of converting to an intermediate frequency, demodulation and error correction, etc., and the restored transport stream is provided to the next MPEG decoder 120.

Further, in the tuner and demodulator 115, when the user requests an advertisement screen for home shopping while watching a satellite broadcasting television, the advertisement packet extracting signal provided from the microcomputer 110 described above, that is, an advertisement packet identifier (PID) Based on the information, advertisement packets carrying advertisement image data inserted on the transport stream at predetermined time intervals are extracted and restored to the original signal. The restored text advertisement data are provided to the MPEG decoder 120 to display various advertisement information. Done.

On the other hand, in the MPEG decoder 120, on the basis of the control signal provided from the microcomputer 110, the compressed and encoded audio signal and video signal of the broadcast channel provided from the tuner and demodulator 115, for example, of the video signal. In consideration of spatiotemporal and spatial correlation, the compressed and encoded video signal is restored to the original signal before encoding using a decoding technique such as variable length decoding, inverse DCT, inverse quantization, and motion compensation, and the digital broadcast video signal reconstructed here The next stage is provided to the video encoder 125, and the reconstructed audio signal is provided to an audio signal processor (not shown).

In addition, the video encoder 125 converts the selected digital broadcast video signal provided by the MPEG decoder 120 to an NTSC or PAL analog video signal and then provides the image synthesizer 130 to the video synthesizer 130. Restores the encoded various OSD data provided from the above-described tuner and demodulator 115, such as a broadcast channel menu service, to an original signal before encoding, and configures it as an OSD screen and provides it to the image synthesizer 130.

Therefore, the image synthesizing unit 130 transfers the analog satellite broadcasting signal output from the video encoder 125 to the display side, not shown, or omits the screen mixed with various menu screen data displayed through the OSD unit 150. To the display side.

Meanwhile, the modem 135 transmits data between the service provider and the mutual data through the switching line. For example, when the user watches a pay program, the microcomputer 110 receives user information registered in the smart card 140. The billing process for the program is performed by transmitting to the service provider, and in particular, when the user purchases any product during the home shopping according to the present invention, the purchase information and the user information selected by the user are transmitted to the service provider. Done.

3 is a flowchart illustrating a home shopping process using a satellite broadcasting receiver according to an embodiment of the present invention, which will be described in detail with reference to the accompanying drawings.

While the general operation of the satellite broadcasting receiver configured as described above displays the broadcast signal of the specific channel selected by the user through each process as described above (step 301), the home shopping is performed through the key input unit 105. When the advertisement screen request signal for the input is input (step 303), the microcomputer 110 generates an advertisement screen information extraction signal and provides it to the tuner and demodulator 115, whereby the tuner and demodulator 115 is a satellite. The advertisement screen information inserted in the bit stream provided from the SCR is extracted and provided to the MPEG decoder 120 (step 305).

The advertisement screen information input to the MPEG decoder 120 is provided to the display through the video encoder 125 and the image synthesizing unit 130 through a predetermined signal processing process, so that an advertisement screen as shown in FIG. Is displayed (step 307).

At this time, when the user operates the key input unit 105 to search for various products and then operates the key input unit 105 again to input a key signal for purchasing the desired product (step 309), the microcomputer 110 In response to the key signal, the user information (eg, name, address, telephone number, etc.) registered in the smart card 140 is read (step 311).

Subsequently, the microcomputer 110 transmits the read user information and the information about the product selected by the user to the home shopping service company through the modem 135 (step 313), and then the user's product purchase information (item name, price). Etc.) is stored in a predetermined area of the memory unit 145 so that the user can refer to it when desired (step 315).

After the above-described process, if the user wants to continue with the purchase of another product, the process after the above-described step 307 is repeated to perform the product purchase process, and conversely, the home through the key input unit 105 is performed. When a predetermined time elapses without inputting a shopping end key signal or inputting a key signal for performing another specific command, the advertisement screen displayed on the current screen is controlled by the microcomputer 110 through the above-described step 307. By being automatically turned off, the overall operation of the satellite broadcast receiver is switched to the normal viewing mode as in the initial step 301 described above (step 319).

As a result, by using a modem installed in a satellite broadcasting receiver, a user can directly purchase a desired product online.

As described above, according to the present invention, the satellite broadcasting receiver provides a separate advertisement screen, and the user can provide a home shopping function that enables the user to directly purchase a desired product online by using a modem. Therefore, there is an effect that can provide a more improved satellite broadcasting service.

Claims (2)

Receives bit streams for various broadcast programs provided from satellites and displays them on a monitor through a predetermined signal processing process, and user information registered to the satellite broadcast receiver using a modem when watching a pay program among the various broadcast programs. In the home shopping method using a satellite broadcast receiver for transmitting to the pay program provider, The bit stream includes various advertisement screen information for the home shopping. The method is: A first step of extracting the various advertisement screen information inserted into the bit stream when the advertisement screen request signal for performing the home shopping is input during the normal viewing mode of the satellite broadcasting receiver; A second step of displaying the extracted advertisement screen information through a predetermined signal processing process and checking input of a selection key signal for any product included in the displayed various advertisement screens; A third step of reading the user information registered in the satellite broadcasting receiver when a selection key signal for the product is input; A fourth step of transmitting the read user information and the selected arbitrary product information to the home shopping service provider using the modem; And a fifth step of turning off the displayed advertisement screen and switching the operation of the satellite broadcasting receiver to the normal viewing mode when a key signal for terminating the home shopping process is input. Way. The satellite broadcasting receiver of claim 1, wherein the fourth step further comprises storing the selected product information in a memory means of the satellite broadcasting receiver and displaying the selected product information on a guide screen of a predetermined form when the transmission process is completed. Home shopping method using.