KR20000013801A - Receiving equipment of analog/digital broadcast - Google Patents
Receiving equipment of analog/digital broadcast Download PDFInfo
- Publication number
- KR20000013801A KR20000013801A KR1019980032878A KR19980032878A KR20000013801A KR 20000013801 A KR20000013801 A KR 20000013801A KR 1019980032878 A KR1019980032878 A KR 1019980032878A KR 19980032878 A KR19980032878 A KR 19980032878A KR 20000013801 A KR20000013801 A KR 20000013801A
- Authority
- KR
- South Korea
- Prior art keywords
- unit
- digital
- analog
- channel
- audio
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
Abstract
Description
본 발명은 아날로그방송과 디지탈방송을 모두 수신할 수 있는 아날로그방송 및 디지탈방송 수신장치에 관한 것으로, 보다 상세하게는 아날로그방송 수신시의 디지탈노이즈에 의한 영향을 제거하여 아날로그방송의 화질을 개선한 아날로그방송 및 디지탈 방송 수신장치에 관한 것이다.The present invention relates to an analog broadcast and a digital broadcast receiver capable of receiving both analog and digital broadcasts, and more particularly, to improve the quality of analog broadcasts by removing the effects of digital noise during analog broadcast reception. A broadcast and digital broadcast receiver.
일반적으로, 아날로그방송은 베이스밴드의 비디오신호 및 오디오신호를 고주파신호로 변조하여 송출하는 것인데 반하여, 디지탈방송은 베이스밴드의 비디오신호 및 오디오신호를 QAM변조후 디지탈신호로 변환하여 고주파 또는 마이크로파에 실어 보내는 것으로, 아날로그방송수신장치와 디지탈방송수신장치는 그 구성이 전혀 달라진다.In general, analog broadcasting modulates and transmits a baseband video signal and an audio signal into a high frequency signal, whereas digital broadcasting converts a baseband video signal and an audio signal into a digital signal after QAM modulation and loads it on a high frequency or a microwave. By sending, the analog broadcast receiver and the digital broadcast receiver are completely different in configuration.
따라서, 한 가구에서 아날로그방송과 디지탈방송을 모두 시청하고자 하는 경우에는 도1에 도시한 바와같이 수신시스템을 구성하여야 한다.Therefore, when one wants to watch both analog and digital broadcasting in a household, a reception system must be configured as shown in FIG.
즉, 디지탈방송을 시청하기 위해서는 디지탈방송수신장치가 구비되어야 하고, 아날로그방송을 시청하기 위해서는 아날로그방송수신장치가 구비되어야 하므로, 고주파방송신호가 입력받아 둘로 분배출력하는 분배기(11)와, 상기 분배기(11)의 한 출력단에 연결되어 입력되는 고주파방송신호중 디지탈방송채널을 선국수신하여 MPEG디코딩 및 엔코딩처리에 의해 오디오/비디오신호로 복원출력하는 디지탈방송수신기(12)와, 상기 분배기(11)의 다른 출력단에 연결되어 입력되는 고주파방송신호중 아날로그방송채널을 선국수신하여 오디오/비디오신호로 복조출력하는 아날로그방송수신기(13)와, 상기 디지탈방송수신기(12) 및 아날로그방송수신기(13)로부터 입력되는 오디오/비디오신호를 영상과 음성을 재생하는 TV(14)를 구비한다.That is, a digital broadcast receiver must be provided to watch digital broadcast, and an analog broadcast receiver must be provided to watch analog broadcast. Therefore, the distributor 11 receives the high frequency broadcast signal and divides it into two outputs. And a digital broadcast receiver 12 for pre-receiving a digital broadcast channel among high frequency broadcast signals input and connected to one output terminal of the receiver 11 to restore and output the audio / video signal by MPEG decoding and encoding processing. An analog broadcast receiver 13 for pre-receiving an analog broadcast channel among the high frequency broadcast signals input and connected to another output terminal and demodulating and outputting the audio / video signal, and input from the digital broadcast receiver 12 and the analog broadcast receiver 13; And a TV 14 for reproducing audio and video signals for video and audio.
이와 같이, 종래에는 아날로그방송과 디지탈방송을 모두 시청하기 위해서는 아날로그방송수신기와 디지탈방송수신기를 모두 구비하여야 하는 문제점이 있었다.As described above, in order to watch both analog and digital broadcasting, there is a problem in that both the analog broadcasting receiver and the digital broadcasting receiver must be provided.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 발명된 것으로서, 그 목적은 아날로그 방송 뿐만아니라 디지탈방송을 수신처리할 수 있으면서 특히 아날로그방송수신시, 아날로그방송신호에 영향을 미칠수 있는 디지탈노이즈의 발생을 제거하여 아날로그수신효율을 높힐 수 있는 아날로그 및 디지탈방송 수신장치를 제공하는 것이다.The present invention has been invented to solve the above-mentioned conventional problems, and its object is not only to provide analog broadcasting but also to process digital broadcasting, and in particular, when receiving analog broadcasting, it is possible to solve the problem of digital noise. It is to provide an analog and digital broadcast receiving device that can eliminate the occurrence and increase the analog reception efficiency.
도1은 종래 아날로그방송과 디지탈방송을 수신하기 위한 수신시스템의 구성예를 보이는 블록도이다.1 is a block diagram showing an example of the configuration of a receiving system for receiving conventional analog broadcasting and digital broadcasting.
도2는 본 발명에 의한 아날로그방송 및 디지탈 방송 수신장치의 구성을 보이는 블록도이다.2 is a block diagram showing the configuration of an analog broadcast and digital broadcast receiver according to the present invention.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
100 ... 전원부100 ... power supply
200 ... 채널부200 ... channel section
300 ... PIF부300 ... PIF part
400 ... MPEG디코딩부400 ... MPEG decoding unit
500 ... 선택스위칭부500 ... selection switch
상술한 본 발명의 목적을 달성하기 위한 구성수단으로서, 본 발명에 의한 아날로그방송 및 디지탈방송 수신장치는As a construction means for achieving the above object of the present invention, the analog broadcasting and digital broadcasting receiving apparatus according to the present invention
아날로그방송채널과 디지탈방송채널중 선국채널의 고주파신호를 수신하여 중간주파신호로 변환하는 튜너와 튜너로부터 출력되는 중간주파신호를 둘로 분배출력하는 분배기와 상기 분배기로부터 출력되는 중간주파수신호를 QAM복조 및 디지탈변환처리하는 디지탈처리부를 구비한 채널부와,QAM demodulation and a splitter for splitting and outputting a tuner for receiving a high frequency signal of a tuning channel among analog and digital broadcasting channels and converting it into an intermediate frequency signal, and a splitter for outputting the intermediate frequency signal output from the tuner in two; A channel unit having a digital processing unit for digital conversion processing;
상기 채널부의 분배기로부터 출력되는 중간주파신호를 증폭,필터처리한 후 베이스밴드의 오디오/비디오신호로 복조하는 PIF부와,A PIF unit for amplifying and filtering an intermediate frequency signal output from the distributor of the channel unit and demodulating the base frequency audio / video signal;
상기 MPEG디코딩부는 채널부의 튜닝동작 및 MPEG디코딩동작을 제어하는 제어부와,The MPEG decoding unit is a control unit for controlling the tuning operation and the MPEG decoding operation of the channel unit;
상기 제어부의 제어에 따라 상기 채널부의 디지탈처리부로부터 출력되는 디지탈데이타를 MPEG디코딩 및 부호화처리하여 베이스밴드의 오디오/비디오신호로 복원하는 MPEG디코딩부와,MPEG decoding unit for MPEG decoding and encoding digital data output from the digital processing unit of the channel unit under control of the control unit to restore the baseband audio / video signal;
상기 PIF로부터 출력되는 오디오/비디오신호 또는 상기 MPEG디코딩부로부터 출력되는 오디오/비디오신호를 선택출력하는 스위칭부를 구비함을 특징으로 한다.And a switching unit for selectively outputting an audio / video signal output from the PIF or an audio / video signal output from the MPEG decoding unit.
더하여, 본 발명에 의한 아날로그방송 및 디지탈방송 수신장치는 전원스위칭수단을 더 구비함을 특징으로 한다.In addition, the analog broadcasting and digital broadcasting receiving apparatus according to the present invention is characterized by further comprising a power switching means.
이하, 첨부한 도면을 참조하여 본 발명의 구성 및 작용을 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.
도2는 본 발명에 의한 아날로그방송 및 디지탈방송 수신장치를 도시한 블록구성도로서, 각 블록에 동작전원(10V, 5V,...)을 공급하는 전원부(100)와, 입력되는 고주파신호(RFin)중 선국채널의 고주파신호를 수신하여 중간주파신호를 변환하는 튜너(201)와 상기 튜너(201)로부터 출력되는 중간주파신호를 둘로 분배출력하는 분배부(202)와 상기 분배부(202)의 한 출력단자로부터 출력되는 중간주파신호를 QAM복조 및 디지탈변환하여 디지탈데이타(TS:트랜스포트스트림)를 출력하는 디지탈처리부(203)와 아날로그채널수신시 상기 전원부(100)로부터 디지탈처리부(203)로 입력되는 전원을 차단시키는 전원스위칭부(204)를 구비한 채널부(200)와, 상기 채널부(200)의 분배부(202)의 다른 출력단자로부터 출력되는 중간주파신호를 베이스밴드의 비디오, 오디오신호로 복조하는 PIF부(300)와, 채널부(200)의 선국 및 MPEG디코더(402)의 디코딩동작 뿐만아니라 스위칭동작을 제어하는 제어부(401)와 상기 채널부(200)의 디지탈처리부(203)로부터 출력되는 디지탈데이타(TS)를 디코딩하여 원래의 비디오/오디오데이타로 복원하는 MPEG디코더(402)와 상기 MPEG디코더(402)로부터 출력되는 디지탈비디오/오디오신호를 아날로그의 비디오/오디오신호로 변환하는 엔코더(403)로 이루어지는 MPEG디코딩부(400)와, 상기 PIF부(300)로부터 출력되는 아날로그방송의 비디오/오디오신호와 상기 MPEG디코딩부(400)로부터 출력되는 디지탈방송의 비디오/오디오신호를 외부기기(즉, 텔레비젼)로 선택출력하는 스위칭부(500)를 구비한다.Fig. 2 is a block diagram showing an analog broadcasting and digital broadcasting receiving apparatus according to the present invention, which includes a power supply unit 100 for supplying operating powers (10V, 5V, ...) to each block, and an input high frequency signal ( A divider 202 and a divider 202 for receiving a high frequency signal of a channel selected from RFin and converting an intermediate frequency signal into a splitter 202 and a middle frequency signal outputted from the tuner 201. Digital processing unit 203 for outputting digital data (TS: transport stream) by QAM demodulation and digital conversion of the intermediate frequency signal output from one output terminal of the digital output unit 203 from the power supply unit 100 when receiving an analog channel. The video signal of the baseband is provided with a channel unit 200 having a power switching unit 204 for interrupting power inputted to the channel, and an intermediate frequency signal output from another output terminal of the distribution unit 202 of the channel unit 200. PI demodulated with audio signal The control unit 401 for controlling the switching operation as well as the decoding operation of the F unit 300, the channel unit 200, and the selection of the channel decoder 200 and the MPEG decoder 402 are output from the digital processing unit 203 of the channel unit 200. An MPEG decoder 402 for decoding digital data (TS) and restoring the original video / audio data, and an encoder for converting a digital video / audio signal output from the MPEG decoder 402 into an analog video / audio signal (403). MPEG video decoding unit 400, an analog broadcasting video / audio signal output from the PIF unit 300, and a digital broadcasting video / audio signal output from the MPEG decoding unit 400 are used. And a switching unit 500 for selectively outputting to a TV).
상술한 구성의 아날로그방송 및 디지탈방송 수신장치의 동작은 다음과 같이 이루어진다.The operation of the analog broadcasting and digital broadcasting receivers having the above-described configuration is performed as follows.
먼저, 전원부(100)에 의하여 각 블록, 즉 채널부(200)와 MPEG디코딩부(400) 등에 전원이 공급되어 각 블록은 동작가능상태가 된다.First, power is supplied to each block, that is, the channel unit 200 and the MPEG decoding unit 400, by the power supply unit 100 so that each block becomes an operable state.
이에, 동작가능하게 된 채널부(200)의 튜너(201)에서 고주파입력신호(RFin)중 선국채널의 고주파신호를 수신하여 중간주파신호로 변환시키고, 분배부(202)에서는 상기 튜너(201)로부터 출력되는 중간주파신호를 둘로 분배출력되어 디지탈처리부(203) 및 PIF부(300)로 입력된다.Accordingly, the tuner 201 of the channel unit 200 that is operable receives the high frequency signal of the channel selected from the high frequency input signal RFin and converts the high frequency signal into an intermediate frequency signal, and the distribution unit 202 transmits the tuner 201. The intermediate frequency signal outputted from the apparatus is divided into two outputs and input to the digital processing unit 203 and the PIF unit 300.
이때, 선국채널이 디지탈방송채널이라면, 상기 디지탈처리부(203)에 의하여 QAM복조되고 디지탈변환되는데, 상기 디지탈처리부(203)로부터 출력되는 데이타를 트랜스포트스트림(TS)이라 한다.At this time, if the selected channel is a digital broadcast channel, the digital processing unit 203 performs QAM demodulation and digital conversion. The data output from the digital processing unit 203 is called a transport stream (TS).
상기 트랜스포트스트림(TS)은 MPEG디코딩부(400)로 입력되어, MPEG디코더(402)에 의해 MPEG디코딩되어 원래의 비디오/오디오데이타로 복원되고, 엔코더(403)에 의하여 아날로그의 오디오/비디오신호로 부호화된다. 이와같은 처리에 의해 복원된 선국채널의 오디오/비디오신호는 스위칭부(500)를 통해 TV로 보내진다.The transport stream TS is input to the MPEG decoding unit 400, MPEG decoded by the MPEG decoder 402 to be restored to the original video / audio data, and an analog audio / video signal by the encoder 403. Is encoded by. The audio / video signal of the tuning channel restored by this process is sent to the TV through the switching unit 500.
반대로 상기에서, 선국채널이 아날로그방송의 채널인 경우에는, 상기 PIF부(300)에서 분배부(202)로부터 출력되는 중간주파수신호를 입력받아 원래의 비디오/오디오신호로 복조한다. 그리고, 상기 PIF부(300)로부터 출력되는 선국채널의 비디오/오디오신호는 스위칭부(500)를 통해 TV로 출력된다.On the contrary, in the above case, when the channel is an analog broadcast channel, the PIF unit 300 receives an intermediate frequency signal output from the distribution unit 202 and demodulates the original video / audio signal. The video / audio signal of the channel selected from the PIF unit 300 is output to the TV through the switching unit 500.
상기에서, 스위칭부(500)은 제어부(401)에 의하여 아날로그방송수신시에는 PIF부(300)의 출력신호를 TV로 출력하고, 디지탈방송수신시에는 MPEG디코딩부(400)의 출력신호를 TV로 출력한다.In the above, the switching unit 500 outputs the output signal of the PIF unit 300 to the TV when receiving the analog broadcast by the control unit 401, and outputs the output signal of the MPEG decoding unit 400 to the TV when receiving the digital broadcast. Will output
이와 같은 구성 및 동작에 의하여 본 발명에 의한 아날로그방송 및 디지탈방송 수신장치는 아날로그방송 뿐만아니라 디지탈방송을 수신처리하여, 시청자가 시청할 수 있도록 한다.By such a configuration and operation, the analog broadcasting and digital broadcasting receiving apparatus according to the present invention receives and processes not only analog broadcasting but also digital broadcasting, so that the viewer can watch.
여기에서, 아날로그방송을 수신하는 경우, 채널부(200)의 전원스위칭부(204)가 제어부(401)의 제어에 따라서 턴오프되어 채널부(200)내의 디지탈처리부(203)로 입력되는 전원을 차단한다.Here, in case of receiving the analog broadcast, the power switching unit 204 of the channel unit 200 is turned off under the control of the control unit 401 to supply power input to the digital processing unit 203 in the channel unit 200. Block it.
이에, 아날로그방송수신시, 채널부(200)내의 디지탈처리장치는 동작하지 못하게 됨으로서 디지탈노이즈의 발생을 제거할 수 있다.Accordingly, when receiving an analog broadcast, the digital processing apparatus in the channel unit 200 may not operate so that generation of digital noise can be eliminated.
따라서, 디지탈방송신호에 비하여 상대적으로 노이즈에 의한 영향을 쉽게 받는 아날로그방송신호의 수신효율을 개선시키고, 아날로그수신시의 화질을 개선시킬 수 있게 된다.Therefore, it is possible to improve the reception efficiency of the analog broadcast signal, which is relatively affected by noise, and to improve the image quality at the time of analog reception, compared to the digital broadcast signal.
반대로, 디지탈방송수신시에는 스위칭부(204)가 CPU(401)의 제어를 받아 턴온되어 동작전원을 디지탈처리부(203)로 공급한다.On the contrary, at the time of digital broadcast reception, the switching unit 204 is turned on under the control of the CPU 401 to supply operating power to the digital processing unit 203.
따라서, 디지탈처리부(203)가 분배부(202)로부터 입력되는 중간주파신호에 즉 QAM복조, FEC에러정정, 디지탈변환 등의 디지탈처리를 행하여 트랜스포트스트림(TS)으로 출력할 수 있게 된다.Therefore, the digital processing unit 203 can perform digital processing such as QAM demodulation, FEC error correction, digital conversion, etc. on the intermediate frequency signal input from the distribution unit 202, and output it as a transport stream TS.
이와 같이, 본 발명은 아날로그방송수신기와 디지탈방송수신기를 각각 구비하지 않고도, 본 발명에 의한 아날로그방송 및 디지탈방송 수신기 하나만을 구비함에 의하여 아날로그방송 뿐만아니라 디지탈방송도 시청할 수 있는 우수한 효과가 있으며, 더하여 아날로그방송 및 디지탈방송 수신기로 아날로그방송수신시 디지탈처리부의 전원을 차단시킴으로서 디지탈노이즈에 의해 아날로그수신효율이 저하되고 화질이 나빠지는 것을 방지할 수 있는 우수한 효과가 있다.As described above, the present invention has an excellent effect of viewing not only analog broadcast but also digital broadcast by providing only one analog broadcast and digital broadcast receiver according to the present invention without having an analog broadcast receiver and a digital broadcast receiver. By cutting off the power of the digital processing unit when receiving analog broadcasting and digital broadcasting receiver, there is an excellent effect of preventing analog reception efficiency and image quality from being degraded by digital noise.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980032878A KR20000013801A (en) | 1998-08-13 | 1998-08-13 | Receiving equipment of analog/digital broadcast |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019980032878A KR20000013801A (en) | 1998-08-13 | 1998-08-13 | Receiving equipment of analog/digital broadcast |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20000013801A true KR20000013801A (en) | 2000-03-06 |
Family
ID=19547143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019980032878A KR20000013801A (en) | 1998-08-13 | 1998-08-13 | Receiving equipment of analog/digital broadcast |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20000013801A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040096406A (en) * | 2003-05-09 | 2004-11-16 | 주식회사 지오나스 | Device for digitally storing broadcasting signal of analog and/or digital type and for performing three-dimensional image |
KR100675368B1 (en) * | 2005-03-14 | 2007-01-29 | 삼성전자주식회사 | Image display apparatus for removing noise of tuner uniting analog and digital and noise removing method thereof |
-
1998
- 1998-08-13 KR KR1019980032878A patent/KR20000013801A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040096406A (en) * | 2003-05-09 | 2004-11-16 | 주식회사 지오나스 | Device for digitally storing broadcasting signal of analog and/or digital type and for performing three-dimensional image |
KR100675368B1 (en) * | 2005-03-14 | 2007-01-29 | 삼성전자주식회사 | Image display apparatus for removing noise of tuner uniting analog and digital and noise removing method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6542203B1 (en) | Digital receiver for receiving and demodulating a plurality of digital signals and method thereof | |
KR100313890B1 (en) | TV set of watching Digital and Analog broadcasting signal | |
KR20000003223A (en) | Digital/analog broadcasting signal processing device | |
KR950035384A (en) | Device and method for interface | |
KR101225594B1 (en) | System and method for receiving multiple channels | |
KR20020018231A (en) | Multi digital broadcasting receiver | |
KR20000013801A (en) | Receiving equipment of analog/digital broadcast | |
JPH04369189A (en) | Television receiver | |
KR100252995B1 (en) | Digital/satellite broadcast reception of the common equipment | |
KR200217277Y1 (en) | Device for receiving channel of analog broadcast and digital broadcast | |
JP2000236523A (en) | Re-transmitter for catv system | |
KR100254498B1 (en) | Multiple receiver for digital broadcasting signal | |
JP2004328366A (en) | Digital broadcast receiver and receiving channel change method | |
KR100774452B1 (en) | Digital broadcasting receiving apparatus for multiplex broadcasting | |
JP2004032231A (en) | Television signal receiving apparatus | |
JPH11355681A (en) | Receiver of television broadcasting | |
JP4029894B2 (en) | Sending method | |
JP3783704B2 (en) | Receiver | |
KR100504773B1 (en) | PC's digital broadcasting receiver | |
KR970057762A (en) | Multifunctional Digital Receiver | |
KR19990070246A (en) | Broadcast receiver on cable TV subscriber | |
KR100293036B1 (en) | The apparatus for stopping video on broadcasting satellite receiver | |
JPH0369461B2 (en) | ||
JP5055825B2 (en) | Television receiver | |
KR20000028464A (en) | System for distributing satellite broadcasts for households use |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |