JPS63183774U - - Google Patents
Info
- Publication number
- JPS63183774U JPS63183774U JP1987074076U JP7407687U JPS63183774U JP S63183774 U JPS63183774 U JP S63183774U JP 1987074076 U JP1987074076 U JP 1987074076U JP 7407687 U JP7407687 U JP 7407687U JP S63183774 U JPS63183774 U JP S63183774U
- Authority
- JP
- Japan
- Prior art keywords
- data
- pass filter
- terminal
- pass
- signal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Networks Using Active Elements (AREA)
Description
第１図は本考案の一実施例に係わるＣＡＴＶ線
路用データ伝送装置を示す接続構成図である。
ＲＦ―ＲＦ……伝送線路、Ｄ１〜Ｄ６……フオ
トカプラ、ＣＨ１〜ＣＨ４……ローパスフイルタ
、Ｃ１〜Ｃ３……ハイパスフイルタ。
FIG. 1 is a connection configuration diagram showing a data transmission device for CATV lines according to an embodiment of the present invention. RF-RF...transmission line, D1 - D6 ...photocoupler, CH1 - CH4 ...low-pass filter, C1 - C3 ...high-pass filter.
Claims (1)
と端末側とでデータ伝送を行なうＣＡＴＶ線路用
データ伝送装置において、センタ側及び端末側そ
れぞれに設けられデータ信号を通過させテレビ信
号を阻止するローパスフイルタと、上記信号伝送
路上における端部及び端末ユニツトの入出力端子
間に設けられテレビ信号を通過させデータ信号を
阻止するハイパスフイルタと、上記センタ及び端
末ユニツトにおけるローパスフイルタにその一次
側及び２次側が直列接続されるフオトカプラとを
具備したことを特徴とするＣＡＴＶ線路用データ
伝送装置。 In a data transmission device for a CATV line that transmits data between a center side and a terminal side via a signal transmission path of a CATV system, a low-pass filter is provided on each of the center side and the terminal side to pass data signals and block television signals; A high-pass filter is provided between the end of the signal transmission path and the input/output terminal of the terminal unit to pass the television signal and block the data signal, and its primary and secondary sides are connected in series to the low-pass filter at the center and terminal unit. A data transmission device for a CATV line, characterized in that it is equipped with a photocoupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074076U JPS63183774U (en) | 1987-05-18 | 1987-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987074076U JPS63183774U (en) | 1987-05-18 | 1987-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63183774U true JPS63183774U (en) | 1988-11-25 |
Family
ID=30918971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987074076U Pending JPS63183774U (en) | 1987-05-18 | 1987-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63183774U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5081424A (en) * | 1973-11-19 | 1975-07-02 | ||
| JPS53132938A (en) * | 1977-04-25 | 1978-11-20 | Matsushita Electric Ind Co Ltd | Two-way data transmitter |
| JPS5754359U (en) * | 1980-09-13 | 1982-03-30 |
-
1987
- 1987-05-18 JP JP1987074076U patent/JPS63183774U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5081424A (en) * | 1973-11-19 | 1975-07-02 | ||
| JPS53132938A (en) * | 1977-04-25 | 1978-11-20 | Matsushita Electric Ind Co Ltd | Two-way data transmitter |
| JPS5754359U (en) * | 1980-09-13 | 1982-03-30 |
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