JPH0467882U - - Google Patents
Info
- Publication number
- JPH0467882U JPH0467882U JP1990110882U JP11088290U JPH0467882U JP H0467882 U JPH0467882 U JP H0467882U JP 1990110882 U JP1990110882 U JP 1990110882U JP 11088290 U JP11088290 U JP 11088290U JP H0467882 U JPH0467882 U JP H0467882U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- circuit
- satellite broadcasting
- descrambler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000926 separation method Methods 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Description
図は本考案の衛星放送受信機のブロツク図であ
る。
図中１０はＢＳ−ＩＦ信号、１１は高周波増幅
部、１２は選局信号、１３は局発信号、１４は局
発部、１５は選局部、１６はキー入力部、１７は
混合部、１８は第２のＩＦ信号、１９は中間周波
増幅部、２０は復調部、２１は復調信号、２２は
フイルタ回路、２３および２５は映像信号、２４
はデスクランブラ、２６は同期検出部、２７は垂
直同期信号、２８はタイマ回路、２９は切換信号
、３０は出力スイツチ、３１は出力映像信号、３
２は音声復調部、３３はデジタル／アナログ変換
器、３４は出力音声信号である。
The figure is a block diagram of the satellite broadcasting receiver of the present invention. In the figure, 10 is a BS-IF signal, 11 is a high frequency amplification section, 12 is a tuning signal, 13 is a local oscillation signal, 14 is a local oscillation section, 15 is a tuning section, 16 is a key input section, 17 is a mixing section, 18 2 is a second IF signal, 19 is an intermediate frequency amplification section, 20 is a demodulation section, 21 is a demodulation signal, 22 is a filter circuit, 23 and 25 are video signals, 24
26 is a descrambler, 26 is a synchronization detection section, 27 is a vertical synchronization signal, 28 is a timer circuit, 29 is a switching signal, 30 is an output switch, 31 is an output video signal, 3
2 is an audio demodulator, 33 is a digital/analog converter, and 34 is an output audio signal.
Claims (1)
ＢＳ−ＩＦ信号に交換した衛星放送信号を入力し
、選局回路の指定するチヤンネルの信号を選択し
て第２のＩＦ信号とし、増幅復調して出力した信
号よりフイルタ回路を介して映像信号を抽出する
とともに、同復調出力をデスクランブラにも供給
し、スクランブルを解除した有料放送の契約番組
の映像信号またはフイルタ回路を介した映像信号
のいずれかを切換出力する衛星放送受信機におい
て、前記デスクランブラの出力する映像信号の同
期信号分離回路を備え、出力した垂直同期信号で
再トリガ型のタイマ回路を起動し、同タイマ回路
の出力で同デスクランブラの出力する映像信号を
選択出力するスイツチ回路を備えたことを特徴と
する衛星放送受信機。 Input the satellite broadcasting signal captured by the satellite broadcasting antenna and exchanged to BS-IF signal by the converter, select the signal of the channel specified by the channel selection circuit as the second IF signal, amplify and demodulate, and output the signal. In addition to extracting the video signal via the filter circuit, the demodulated output is also supplied to the descrambler, and the output is switched to either the descrambled video signal of the paid broadcast contract program or the video signal that has passed through the filter circuit. The satellite broadcasting receiver is equipped with a synchronization signal separation circuit for the video signal output from the descrambler, the output vertical synchronization signal activates a re-trigger type timer circuit, and the output of the timer circuit is used to output the descrambler. A satellite broadcasting receiver characterized by being equipped with a switch circuit that selectively outputs video signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990110882U JPH0467882U (en) | 1990-10-23 | 1990-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990110882U JPH0467882U (en) | 1990-10-23 | 1990-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0467882U true JPH0467882U (en) | 1992-06-16 |
Family
ID=31858285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990110882U Pending JPH0467882U (en) | 1990-10-23 | 1990-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0467882U (en) |
-
1990
- 1990-10-23 JP JP1990110882U patent/JPH0467882U/ja active Pending
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