JPS6126381U - frequency converter - Google Patents
frequency converterInfo
- Publication number
- JPS6126381U JPS6126381U JP10985484U JP10985484U JPS6126381U JP S6126381 U JPS6126381 U JP S6126381U JP 10985484 U JP10985484 U JP 10985484U JP 10985484 U JP10985484 U JP 10985484U JP S6126381 U JPS6126381 U JP S6126381U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal group
- television signal
- low frequency
- group
- 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.)
- Granted
Links
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
第１図は本考案の一実施例を示した回路ブロック図、第
２図は本考案に止る周波数変換を示した周波数配置図、
第３図はＭＤＳにおけるチャンネル周波数の配置図であ
る。
１：混合回路、２：第１の入力端子、３：第２の入力端
子、４，５，１１，１３，１６：バンドパスフィルタ、
６，１７．１８：アンプ、７：混合器、８：局部発振器
、９：水晶発振器、１０，１２：逓倍器、１９：出力端
子。FIG. 1 is a circuit block diagram showing an embodiment of the present invention, FIG. 2 is a frequency allocation diagram showing frequency conversion according to the present invention,
FIG. 3 is a diagram showing the arrangement of channel frequencies in MDS. 1: Mixing circuit, 2: First input terminal, 3: Second input terminal, 4, 5, 11, 13, 16: Band pass filter,
6, 17.18: Amplifier, 7: Mixer, 8: Local oscillator, 9: Crystal oscillator, 10, 12: Multiplier, 19: Output terminal.
Claims (1)
ビ信号群を所定の空きチャンネル幅をもって周波数配置
し、前記低域テレビ信号群の映像搬送波及び音声搬送波
が高城テレビ信号群に対し逆配置され、該低域テレビ信
号群および高城テレビ信号群を所定の中間周波数信号に
変換する周波数変換器に於いて、 前記低域テレビ信号群の上限周波数より高く且つ前記高
域テレビ信号群の下限周波数より低い所定の発振周波数
を有する局部発振器と、前記低域テレビ信号群及び高城
テレビ信号群と前記局部発振器の出力とを混合する混合
器と、該混合器出力のうちの差又は和信号を出力する出
力回路とを備えたことを特徴とする周波数変換器。[Claims for Utility Model Registration] One or more channels of low frequency television signal group and high frequency television signal group are arranged in frequency with a predetermined empty channel width, and the video carrier wave and the audio carrier wave of the low frequency television signal group are the high frequency television signal group. a frequency converter arranged opposite to the group and converting the low frequency television signal group and the high frequency television signal group into a predetermined intermediate frequency signal, the frequency converter having a frequency higher than the upper limit frequency of the low frequency television signal group and higher than the upper limit frequency of the low frequency television signal group and a local oscillator having a predetermined oscillation frequency lower than the lower limit frequency of the signal group; a mixer for mixing the low frequency television signal group and the high castle television signal group with the output of the local oscillator; and a difference between the outputs of the mixer. or an output circuit that outputs a sum signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10985484U JPS6126381U (en) | 1984-07-20 | 1984-07-20 | frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10985484U JPS6126381U (en) | 1984-07-20 | 1984-07-20 | frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6126381U true JPS6126381U (en) | 1986-02-17 |
| JPH0416537Y2 JPH0416537Y2 (en) | 1992-04-14 |
Family
ID=30668987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10985484U Granted JPS6126381U (en) | 1984-07-20 | 1984-07-20 | frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6126381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0338370U (en) * | 1989-08-23 | 1991-04-12 |
-
1984
- 1984-07-20 JP JP10985484U patent/JPS6126381U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0338370U (en) * | 1989-08-23 | 1991-04-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416537Y2 (en) | 1992-04-14 |
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