JPS6014541U

JPS6014541U - up converter

Info

Publication number: JPS6014541U
Application number: JP10604983U
Authority: JP
Inventors: 貞夫矢口
Original assignee: ミツミ電機株式会社
Priority date: 1983-07-08
Filing date: 1983-07-08
Publication date: 1985-01-31

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図Ａ、Ｂは夫々アップコンバート、フランスのＶＨ
Ｆ帯域のテレビジョン信号を説明するための図、第２図
、第３図は本考案になるアップコンバータの一実施例の
ブロック系統図、回路図である。　　　　　　　　　　
　　　　′・・。１、　４．　５・・・入力端子、２・・・帯域フィルタ
、３・・・混合回路、６．７・・・局部発振器、８・・
・スイッチ、９・・・電源端子、１０．１３・・・増幅
器、１１・・・中間周波増幅器、１２・・・出力端子す −・−２８０ｔｓｌ）　　４　　　　　　　　　　　−ＩＬｊ３
ｊ３Figure 1 A and B are respectively up-converted, French VH
Figures 2 and 3 for explaining F-band television signals are block diagrams and circuit diagrams of an embodiment of the up-converter according to the present invention.
'... 1, 4. 5... Input terminal, 2... Bandpass filter, 3... Mixing circuit, 6.7... Local oscillator, 8...
・Switch, 9...Power supply terminal, 10.13...Amplifier, 11...Intermediate frequency amplifier, 12...Output terminal (S--2 80tsl) 4-ILj3
j3

Claims

[Scope of utility model registration request]

In an up-converter that extracts an intermediate frequency signal of a constant frequency in a second frequency band obtained by mixing a television signal in a first frequency band with a local oscillation frequency signal, the television signal in the first frequency band is a first local oscillator that generates a local oscillation frequency signal for making the intermediate frequency signal of the difference signal a constant frequency in the second frequency band; and an intermediate sum signal of the television signal in the first frequency band; and a second local oscillator that generates a local oscillation frequency signal for making the frequency signal a constant frequency in the second frequency band.