JPS6126351U - Common filter subscriber line transmission equipment - Google Patents
Common filter subscriber line transmission equipmentInfo
- Publication number
- JPS6126351U JPS6126351U JP10888284U JP10888284U JPS6126351U JP S6126351 U JPS6126351 U JP S6126351U JP 10888284 U JP10888284 U JP 10888284U JP 10888284 U JP10888284 U JP 10888284U JP S6126351 U JPS6126351 U JP S6126351U
- Authority
- JP
- Japan
- Prior art keywords
- subscriber line
- transmission equipment
- line transmission
- common filter
- circuit
- 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
- Bidirectional Digital Transmission (AREA)
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、従来のアナログデータ伝送装置のブロック図
、第2図は送信信号と受信信号の時間配列図、第3図は
本考案の実施例の伝送装置のブロック図である。
1・・・復調回路、2・・・変調回路、3・・・帯域制
限フィルタ、4・・・ハイブリッド回路、5・・・制御
信号源、6・・・音声入出力端子、7・・・2線式伝送
路、8・・・復調データ出力、9・・・被変調データ入
力、10・・・送信信号タイミング、11・・・受信信
号タイミング、12・・・スイッチ回路、13・・・ス
イッチ制御回路、14・・・クロツク抽出回路、15・
・・同期回路。FIG. 1 is a block diagram of a conventional analog data transmission device, FIG. 2 is a time sequence diagram of transmitted signals and received signals, and FIG. 3 is a block diagram of a transmission device according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Demodulation circuit, 2... Modulation circuit, 3... Bandwidth limiting filter, 4... Hybrid circuit, 5... Control signal source, 6... Audio input/output terminal, 7... 2-wire transmission line, 8... demodulated data output, 9... modulated data input, 10... transmitted signal timing, 11... received signal timing, 12... switch circuit, 13... Switch control circuit, 14... Clock extraction circuit, 15.
...Synchronous circuit.
Claims (1)
回路より成る2線式双方向データ伝送装置において、送
信信号と受信信号との間で1個の帯域制限フィルタを共
通に時分割使用することを特徴とした共通フィルタ加入
者線伝送装置。In a two-wire bidirectional data transmission device consisting of a modulation circuit, a band-limiting filter, a demodulation circuit, and a synchronization circuit, one band-limiting filter is commonly used in time division between the transmitted signal and the received signal. Features common filter subscriber line transmission equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10888284U JPS6126351U (en) | 1984-07-20 | 1984-07-20 | Common filter subscriber line transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10888284U JPS6126351U (en) | 1984-07-20 | 1984-07-20 | Common filter subscriber line transmission equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6126351U true JPS6126351U (en) | 1986-02-17 |
Family
ID=30668054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10888284U Pending JPS6126351U (en) | 1984-07-20 | 1984-07-20 | Common filter subscriber line transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6126351U (en) |
-
1984
- 1984-07-20 JP JP10888284U patent/JPS6126351U/en active Pending
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