JPH0195884U - - Google Patents
Info
- Publication number
- JPH0195884U JPH0195884U JP19134787U JP19134787U JPH0195884U JP H0195884 U JPH0195884 U JP H0195884U JP 19134787 U JP19134787 U JP 19134787U JP 19134787 U JP19134787 U JP 19134787U JP H0195884 U JPH0195884 U JP H0195884U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- shf
- noise
- band
- converts
- 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
Landscapes
- Noise Elimination (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Description
第１図は本考案のＳＨＦ放送疑似信号発生装置
の一実施例を示すブロツク図、第２図はＳＨＦ衛
星放送受信装置の構成を示すブロツク図、第３図
は従来のＳＨＦ放送疑似信号発生装置を示すブロ
ツク図である。
１……ビデオ信号発生器、２……ＳＨＦ変調器
、３……Ｓ―Ｕコンバータ、４……ノイズ発生器
、５……増幅器、６……混合器。
Fig. 1 is a block diagram showing an embodiment of the SHF broadcast pseudo signal generator of the present invention, Fig. 2 is a block diagram showing the configuration of an SHF satellite broadcast receiver, and Fig. 3 is a conventional SHF broadcast pseudo signal generator. FIG. DESCRIPTION OF SYMBOLS 1...Video signal generator, 2...SHF modulator, 3...S-U converter, 4...Noise generator, 5...Amplifier, 6...Mixer.
Claims (1)
変調するＳＨＦ変調器と、 このＳＨＦ変調器からのＳＨＦ帯の信号をＵＨ
Ｆ帯の信号に変換する周波数変換器と、 ＵＨＦ帯のノイズ信号を発生するノイズ発生器
と、 このノイズ信号の増幅量を変化可能とする可変
増幅器と、 この可変増幅器からのノイズ信号を前記周波数
変換器からの信号と混合する混合器とを具備した
ことを特徴とするＳＨＦ放送疑似信号発生装置。[Claims for Utility Model Registration] A video signal generator, an SHF modulator that inputs this video signal and modulates an SHF band carrier signal, and converts the SHF band signal from this SHF modulator into UH
A frequency converter that converts into an F-band signal, a noise generator that generates a UHF-band noise signal, a variable amplifier that can change the amount of amplification of this noise signal, and a noise signal from this variable amplifier that converts the noise signal to the above frequency. An SHF broadcasting pseudo signal generator comprising a mixer for mixing a signal from a converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19134787U JPH0195884U (en) | 1987-12-18 | 1987-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19134787U JPH0195884U (en) | 1987-12-18 | 1987-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0195884U true JPH0195884U (en) | 1989-06-26 |
Family
ID=31482266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19134787U Pending JPH0195884U (en) | 1987-12-18 | 1987-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0195884U (en) |
-
1987
- 1987-12-18 JP JP19134787U patent/JPH0195884U/ja active Pending
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