JPH03120140U - - Google Patents
Info
- Publication number
- JPH03120140U JPH03120140U JP1990029492U JP2949290U JPH03120140U JP H03120140 U JPH03120140 U JP H03120140U JP 1990029492 U JP1990029492 U JP 1990029492U JP 2949290 U JP2949290 U JP 2949290U JP H03120140 U JPH03120140 U JP H03120140U
- Authority
- JP
- Japan
- Prior art keywords
- output
- satellite broadcast
- voltage
- circuit
- satellite
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005055 memory storage Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
図は本考案の一実施例を示すＢＳアンテナ用自
動電源供給回路のブロツク図である。
１はＢＳ等のアンテナ、３はＢＳ等のチユーナ
、４はレベルチエツク回路、５はマイクロプロセ
ツサ、６はスイツチ回路、７は電流検出回路、８
は電源回路である。
The figure is a block diagram of an automatic power supply circuit for a BS antenna showing an embodiment of the present invention. 1 is an antenna such as a BS, 3 is a tuner such as a BS, 4 is a level check circuit, 5 is a microprocessor, 6 is a switch circuit, 7 is a current detection circuit, 8
is the power supply circuit.
Claims (1)
テナ部出力を同軸ケーブルで衛星放送チユーナ入
力端子に接続し、同衛星放送チユーナの入力信号
の強弱に応じた電圧を出力する復調器出力をレベ
ルチエツク回路に接続し、同復調器出力電圧と同
レベルチエツク回路の比較電圧との比較出力の制
御電圧をマイクロプロセツサに接続し、同マイク
ロプロセツサ出力を前記衛星放送アンテナ部用電
源回路のスイツチ回路に接続し、同スイツチ回路
出力の電源電圧をそれぞれ電流検出回路を通して
の前記マイクロプロセツサのメモリー保持用と前
記衛星放送チユーナ入力端子を通して前記同軸ケ
ーブルに重畳して前記衛星放送アンテナ部とに供
給してなる個別受信及び共同受信時の自動切換え
を特徴とする受信装置。 In a satellite broadcast receiving device, the output of the satellite antenna section is connected to the satellite broadcast tuner input terminal with a coaxial cable, and the demodulator output, which outputs a voltage according to the strength of the input signal of the satellite broadcast tuner, is connected to a level check circuit. Connect the demodulator output voltage to the comparison voltage of the same level check circuit, and connect the control voltage of the comparison output to the microprocessor, and connect the microprocessor output to the switch circuit of the satellite broadcasting antenna power supply circuit. The power supply voltage output from the switch circuit is supplied to the memory storage of the microprocessor through a current detection circuit, and superimposed on the coaxial cable through the satellite broadcast tuner input terminal and supplied to the satellite broadcast antenna unit. A receiving device characterized by automatic switching during individual reception and joint reception.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029492U JPH03120140U (en) | 1990-03-22 | 1990-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029492U JPH03120140U (en) | 1990-03-22 | 1990-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120140U true JPH03120140U (en) | 1991-12-10 |
Family
ID=31532247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990029492U Pending JPH03120140U (en) | 1990-03-22 | 1990-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176193A (en) * | 2003-12-15 | 2005-06-30 | Miharu Communications Co Ltd | Optical reception terminal for subscriber with input switching function of ftth system |
-
1990
- 1990-03-22 JP JP1990029492U patent/JPH03120140U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176193A (en) * | 2003-12-15 | 2005-06-30 | Miharu Communications Co Ltd | Optical reception terminal for subscriber with input switching function of ftth system |
| JP4564745B2 (en) * | 2003-12-15 | 2010-10-20 | ミハル通信株式会社 | ONU for subscribers with input switching function in FTTH system |
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