JPH02105175U - - Google Patents
Info
- Publication number
- JPH02105175U JPH02105175U JP1259489U JP1259489U JPH02105175U JP H02105175 U JPH02105175 U JP H02105175U JP 1259489 U JP1259489 U JP 1259489U JP 1259489 U JP1259489 U JP 1259489U JP H02105175 U JPH02105175 U JP H02105175U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- signal
- tuner
- power supply
- supply voltage
- 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 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の実施例を示すブロツク図、第
２図は変調回路の特性図、第３図は変調電源電圧
の波形図、第４図は衛星放送受信装置の概要図で
ある。
１…ＡＧＣ回路、２…ＶＣＯ回路、３…変調回
路、４…復調回路、５…表示器、１０１…放送衛
星、１０２…ＢＳアンテナ、１０３…ＢＳコンバ
ータ、１０４…接続ケーブル、１０５…ＢＳチユ
ーナ。
FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a characteristic diagram of a modulation circuit, FIG. 3 is a waveform diagram of a modulated power supply voltage, and FIG. 4 is a schematic diagram of a satellite broadcast receiving apparatus. DESCRIPTION OF SYMBOLS 1...AGC circuit, 2...VCO circuit, 3...Modulation circuit, 4...Demodulation circuit, 5...Display device, 101...Broadcasting satellite, 102...BS antenna, 103...BS converter, 104...Connection cable, 105...BS tuner.
Claims (1)
ナに付設されたＢＳコンバータにより復調し接続
ケーブルを介してＢＳチユーナに伝送するととも
に、前記ＢＳコンバータの電源電圧を前記接続ケ
ーブルを介して前記ＢＳチユーナから供給するよ
うにしたＢＳアンテナのチユーニング装置におい
て、 前記ＢＳチユーナに設けられ、前記受信信号に
基づいて前記ＢＳアンテナの受信電力を検出し、
その検出信号電圧レベルに対応した周波数の可変
周波数信号によつて前記電源電圧を変調する第１
の回路と、 前記ＢＳコンバータに設けられ、前記変調され
た電源電圧から前記可変周波数信号を復調し、そ
の復調信号に対応した表示信号を発生する第２の
回路と、 を備えたことを特徴とするＢＳアンテナのチユー
ニング装置。[Claims for Utility Model Registration] A received signal from a BS antenna is demodulated by a BS converter attached to the BS antenna and transmitted to the BS tuner via a connection cable, and the power supply voltage of the BS converter is connected to the connection cable. In the BS antenna tuning device, the BS antenna is supplied from the BS tuner via the BS tuner, and is provided in the BS tuner and detects the received power of the BS antenna based on the received signal;
A first modulating the power supply voltage with a variable frequency signal having a frequency corresponding to the detection signal voltage level.
and a second circuit provided in the BS converter, which demodulates the variable frequency signal from the modulated power supply voltage and generates a display signal corresponding to the demodulated signal. BS antenna tuning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259489U JPH02105175U (en) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259489U JPH02105175U (en) | 1989-02-07 | 1989-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02105175U true JPH02105175U (en) | 1990-08-21 |
Family
ID=31222169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259489U Pending JPH02105175U (en) | 1989-02-07 | 1989-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02105175U (en) |
-
1989
- 1989-02-07 JP JP1259489U patent/JPH02105175U/ja active Pending
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