JPS6019247U - CATV converter - Google Patents
CATV converterInfo
- Publication number
- JPS6019247U JPS6019247U JP10932683U JP10932683U JPS6019247U JP S6019247 U JPS6019247 U JP S6019247U JP 10932683 U JP10932683 U JP 10932683U JP 10932683 U JP10932683 U JP 10932683U JP S6019247 U JPS6019247 U JP S6019247U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- stage
- converter
- catv
- amplifies
- 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
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＣＡＴＶコンバータの結合要部回路図、
第２図は本考案に係るＣＡＴＶコンバータの一次側アツ
ブコンバータと二次側ダウンコンバータとの結合要部回
路図、第３図はＣＡ、ＴＶコンバータとの処理信号の周
波数スペクトル特性図、第４図は同じくブロック図、及
び第５図はＣＡＴＶコンバータの具体的回路図である。
１１・・・・・・−次側アップコンバータ、１２・・・
・・・二次側ダウンコンバータ、１３．７０・・・区画
室、１７．７５・・・ローパスフィルタ、２４，２５゜
７１．７２・・・・・・コイル、２６，２７，７３．７
４・・・・・・コンデンサ、２２，２３，７６．７７・
・・・・・仕切板。Figure 1 is a circuit diagram of the main parts of a conventional CATV converter.
Fig. 2 is a circuit diagram of the main part of the connection between the primary side up converter and the secondary side down converter of the CATV converter according to the present invention, Fig. 3 is a frequency spectrum characteristic diagram of the processed signal with the CA and TV converter, and Fig. 4 This figure is also a block diagram, and FIG. 5 is a specific circuit diagram of the CATV converter. 11...-Next side up converter, 12...
... Secondary down converter, 13.70 ... Compartment, 17.75 ... Low pass filter, 24,25°71.72 ... Coil, 26,27,73.7
4... Capacitor, 22, 23, 76.77.
...Partition board.
Claims (1)
０−カル信号を生成する第１局部発振段、選択されたＣ
ＡＴＶ信号と第１０−カル信号を混合し第１１Ｆ信号に
変換する第１ミキサ段及びこの第１ＩＦアンプ段を増幅
する第１ｉＦアンプ段を含むアップコンバータ、及び固
定周波数の第２０−カル信号を生成する第２局部発振段
、前記ＩＦＦ信号第２０−カル信号を混合し第２ＩＦ信
号に変換する第２ミキサ段及びこの第２１Ｆ信号を増幅
する第２１Ｆアンプ段を含むダウンコンバータにより構
成され、前記アップコンバータと前記ダウンコンバータ
間の前記第１１ Ｆ信号の伝送路にローパスフィルタを
形成配置し、妨害排除するように結合したことを特徴と
するＣＡＴＶコンバータ。Input tuning stage for selecting CATV signals, variable frequency first
A first local oscillator stage that generates a 0-cal signal, selected C
an upconverter including a first mixer stage that mixes the ATV signal and the 10th-Cull signal and converts it into an 11F signal; and a first iF amplifier stage that amplifies the first IF amplifier stage; and generates a fixed frequency 20th-Cull signal. a second mixer stage that mixes the 20th IFF signal and converts it into a 2nd IF signal, and a 21F amplifier stage that amplifies the 21F signal; A CATV converter characterized in that a low-pass filter is formed and arranged on the transmission path of the 11th F signal between the converter and the down converter, and is coupled to eliminate interference.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10932683U JPS6019247U (en) | 1983-07-14 | 1983-07-14 | CATV converter |
| CA000455018A CA1212457A (en) | 1983-06-14 | 1984-05-24 | Frequency converter, especially catv converter |
| US06/614,834 US4569084A (en) | 1983-06-14 | 1984-05-29 | Frequency converter, especially CATV converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10932683U JPS6019247U (en) | 1983-07-14 | 1983-07-14 | CATV converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6019247U true JPS6019247U (en) | 1985-02-09 |
Family
ID=30254714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10932683U Pending JPS6019247U (en) | 1983-06-14 | 1983-07-14 | CATV converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019247U (en) |
-
1983
- 1983-07-14 JP JP10932683U patent/JPS6019247U/en active Pending
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