KR0160827B1 - Satellite broadcast upgrade receiver and the method for the same - Google Patents

Abstract

The present invention relates to a satellite broadcasting upgrade receiving apparatus and method, comprising: receiving a data ID to be upgraded in satellite broadcasting, determining whether the received ID matches a receiver ID in a receiver, and the receiver ID matches If it is to perform the pseudo-attribution to the user, determining whether to upgrade by performing the pseudo-attraction, and if the upgrade is to be upgraded by judging whether to upgrade, storing the upgrade data in the SRAM; Switching the upgrade data to a lighting mode of a flash memory for power supply, switching to a read mode to cut off the power supply of the lighting mode, and resetting the read mode to a state of zero; It is easy to change the program or modify the contents. You can watch the program.

Description

Satellite broadcasting upgrade receiver and method.

1 is a block diagram of a conventional satellite broadcasting receiver.

2 is a block diagram of a satellite broadcasting receiver according to the present invention.

3 is a flowchart for upgrading a satellite broadcast receiver according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: antenna 2: converter

3: station selection 4: FM demodulation unit

5: Audio image separation unit 6: DMPIS unit

7: Energy diffusion signal suppression unit 8: 4 phase QPSK demodulation unit

9: PCM demodulator 10: TV

11: tuner 12: QPSK demodulation unit

13: FEC decoder 14: TS circuit

15 DRAM 16 microprocessor

17: SRAM 18: Flash memory

19: Video / audio part 20: NTSC encoder

30: outdoor unit 40: receiver

The present invention relates to a satellite broadcasting upgrade receiving apparatus and method, and more particularly, to a satellite broadcasting upgrading receiving apparatus and method which has been improved in that it is difficult to change a program or modify contents after installing a receiver.

In general, satellite broadcasting by Broadcasting Satellite (BS) and Communication Satellite (CS) means that broadcast satellites that are broadcast from terrestrial broadcasting stations are relayed on a stop orbit around 35,000-36,000km. Relaunched to the ground and received in each home by using parabolic antenna. Within the radio range, there are no blind spots and you can watch with clear screen and perfect sound. Together with this, the age of satellite broadcasting will be reached. Broadcasting satellites and communication satellites are not inherently different from satellite broadcasting systems, but broadcasting satellites have a transmission power of approximately 100W-200W in order to reduce the cost of the receiving system for the broadcasting service for the purpose of receiving individual radio waves from stationary satellites. do. TV voice transmission method by broadcasting satellite includes FM audio transmission method which is analog method and PCM audio transmission method which is digital method. In the PCM digital method, a video signal is transmitted by time division multiplexing a luminance signal and a color difference signal, and multiplexed at the vertical retrace time of the video signal for an audio signal. Satellite broadcasting requires an appropriate receiver system to receive SHF (3G13G) frequency signals. In addition, compared to the conventional VHF and UHF radio waves, the strength of the radio waves on the ground is weak, there is a characteristic of being affected by rain, cloud effects, buildings, etc. In order to obtain a good image quality, a good antenna, converter, tuner is required. When a satellite station emits a signal to a satellite that is about 35,000 to 36,000 kilometers above the equator, it receives it from the satellite and re-launchs it in the designated area. In the home, the signal is broadcast to the TV via an antenna, a converter, and a tuner. Will receive.

FIG. 1 is a block diagram of a conventional satellite broadcasting receiver, wherein the radio wave emitted from the satellite is 3G-13 GHz, which has a high directivity, and thus receives low noise and high amplification at a frequency of 1/10 at a frequency of 1/10. It outputs to the converter 2 which plays a role. The output wave is supplied to the tuner unit 11 through the coaxial cable. The tuner section 11 is output to the video audio separation section 5 separating the video and audio through the FM demodulation section 4 for reproducing the original signal from the FM modulated wave in the line. PCM demodulator for reproducing the original signal from the PCM modulated wave through the four-phase QPSK demodulator (8) to reproduce the original signal in the four-phase QPSK modulated wave in the video audio separation unit ( 9). Next, in order to eliminate the pre-emphasis effect introduced into the high frequency component of the audio signal prior to reproduction, the audio is output through the de-emphasis unit 6 which reduces the relative intensity of the high frequency component and returns the signal level to its original state. do. In addition, in the video audio separation unit 5, the video signal is demultiplexed to reduce the relative strength of the high frequency component to restore the signal level to the original state in order to solve the pre-emphasis effect introduced into the high frequency component of the video signal prior to reproduction. An image is output via the sheath 6 and through an energy diffusion signal control unit 7 which prevents the spread of energy of radio waves that do not interfere with terrestrial wireless communication.

Once the receiver is installed, there is a problem that the function can not be extended or modified by the user.

An object of the present invention is to expand the function by receiving the upgrade data to solve the above problems.

The present invention includes the steps of receiving a data ID to be upgraded in satellite broadcasting to achieve the above object, determining whether the received ID and the receiver ID in the receiver is identical, and if the receiver ID matches, pseudo Storing the upgrade data in the SRAM; and supplying power to the upgrade data stored in the SRAM, if the upgrade is performed by determining whether to upgrade. Switching to a writing mode of the flash memory, switching to a read mode to cut off the power supply of the writing mode, and resetting the read mode to zero.

In addition, the present invention is a step of receiving a data ID to be upgraded to satellite broadcasting in order to achieve the above object, determining whether the received ID and the receiver ID in the receiver, and if the receiver ID is matched to the user Performing pseudo-progression, determining whether to upgrade by performing the pseudo-exchange, storing upgrade data in SRAM if the upgrade is to be performed by determining whether to upgrade, and upgrading data stored in the SRAM. Switching to a lighting mode of the flash memory for supplying power, switching to a read mode to cut off the power supply of the lighting mode, and resetting the read mode to a zero state. .

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

2 is a block diagram of a satellite broadcasting receiver according to the present invention, the outdoor unit 30 is an antenna (1) for receiving a signal emitted from the satellite, the radio wave received through the antenna at a low frequency of 1/10, It consists of a converter (2) that serves to amplify a high amplification, the receiver 40 is a tuner (11) for converting the output wave through a coaxial cable, and transmits a video signal and an audio signal, and the digital modulation in the tuner A QPSK demodulator (12), a FEC decoder (13) which automatically corrects a data error from a received signal, and a TS (interconnection device) for converting each other while maintaining channel information between a digital satellite line and a ground line. A circuit section 14, a DRAM 15 used as a buffer as a temporary storage device, a micropro sensor 16, an SRAM 17 for storing received upgrade data, and an upgrade data stored in the SRAM. Flash memory (18) And an audio / video unit 19 for outputting video and audio, an NTSC encoder 20 for converting an analog TV signal, and a TV 10 for providing audio and video.

When the operation of the receiver is described in detail, the signal emitted from the satellite is output to the converter 2 which plays a role of low noise and high amplification of the radio wave received through the antenna 1 at a frequency of 1/10. The output wave is supplied to the tuner 11 through a coaxial cable. Quadrature Phase Shift Keying (QPSK) demodulator 12, which is a digital modulation method of converting a plurality of values of instantaneous phases of modulated waves by synthesizing carriers having the same frequency and different phases by 90 ° in the tuner 11 Is transmitted to the Forward Error Control (FEC) decoder 13 which automatically corrects data errors caused by thermal noise on the satellite line from the received signal. Next, since it is installed in a place away from the earth station and the exchange station, the earth station is moved by the MPEG (Moving Picture Export Group) through the TS (Transport Stream) circuit unit 4, which is a connection device for converting the channel information of the digital satellite line to the state maintained. After passing through the prescribed audio / video unit 19, video and audio are received by the TV 10 via an NTSC encoder 20 which converts a digitally received signal from a satellite into an analog TV signal. The TS circuit section 14 is connected to a DRAM 15 and a microprocessor 16, which serve as buffers for temporary storage. The microprocessor 16 is upgraded by the SRAM 17 storing the upgrade data received and the flash memory 18 recording the upgrade data stored in the SRAM when the ID is matched by inserting the smart card into the receiver. .

3 is a flowchart illustrating satellite broadcasting reception according to the present invention. After receiving the data ID to be upgraded (101), it is determined whether the receiver matches the receiver ID recognized by the receiver (102). In this case, if the receiver ID matches, the user is asked whether to upgrade (103). If the user decides to upgrade, the user determines whether to upgrade (104). If the user upgrades, the upgrade data is input and stored in the high-speed but small memory SRAM (105). At this time, if not upgraded to return to the original screen (109). Next, power is supplied 106 to switch to the writing mode of the flash memory for the receiver to write data temporarily stored in the SRAM. The power supply is cut off in order to switch to the read mode 5V in the written flash memory (107). The read mode is initialized by resetting to zero (108).

The present invention is easy to change or modify the program even after installing the receiver and can watch a variety of programs.

Claims (5)

An antenna for receiving a signal emitted from the satellite, a converter that serves to low noise and high amplification of the radio wave received through the antenna, and converts the channel of the satellite broadcasting through the coaxial cable to output the output wave from the converter, QPSK demodulation unit which is a digital modulation method for converting between the tuner unit to be transmitted and the carriers of the same frequency and 90 ° phase in the tuner to convert the instantaneous phase of the modulated wave, and the satellite circuit in the QPSK demodulator A FEC decoder that automatically corrects data errors caused by thermal noise on a signal, and a TS circuit unit which is a connection device for converting the FEC decoder into a state in which channel information between a digital satellite line and a ground line is maintained, and the TS DRAM connected to a circuit portion to use as a buffer, a micro sensor connected to the TS circuit portion, and the microprocessor An SRAM for storing upgrade data received from the SRAM, a flash memory for recording the upgrade data stored in the SRAM, an audio / video unit for synthesizing video and audio in the TS circuit unit, and a satellite to digital unit in the audio / video unit. And an NTSC encoder for converting a received signal into an analog TV signal, and a TV for outputting video and audio from the NTSC. Receiving a data ID to be upgraded in satellite broadcasting; determining whether the received ID matches a receiver ID in a receiver; if the receiver ID matches, performing a pseudo typing on a user; Determining whether to upgrade, storing the upgrade data in SRAM, and converting the upgrade data stored in the SRAM to the flash memory writing mode for power supply. And switching to lead mode to cut off the power supply of the lighting mode, and resetting the lead mode to zero. 3. The method of claim 2, wherein the upgrade data ID is recognized by a smart card. The satellite broadcasting upgrade receiving method according to claim 2, wherein 12 V is required to switch to the lighting mode of the flash memory. The satellite broadcasting upgrade receiving method according to claim 2, wherein 5 V is required to switch to the read mode of the flash memory.