JPS6121147U - data transmission equipment - Google Patents

data transmission equipment

Info

Publication number
JPS6121147U
JPS6121147U JP10403784U JP10403784U JPS6121147U JP S6121147 U JPS6121147 U JP S6121147U JP 10403784 U JP10403784 U JP 10403784U JP 10403784 U JP10403784 U JP 10403784U JP S6121147 U JPS6121147 U JP S6121147U
Authority
JP
Japan
Prior art keywords
data
pulse
selection
receiving
power line
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
Application number
JP10403784U
Other languages
Japanese (ja)
Inventor
龍宏 永井
Original Assignee
三洋電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP10403784U priority Critical patent/JPS6121147U/en
Publication of JPS6121147U publication Critical patent/JPS6121147U/en
Pending legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (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

【図面の簡単な説明】[Brief explanation of drawings]

図は本考案データ伝送装置を用いた通信回路のブロック
図である。 １．１’，２．２’，３．３’・・・発振器、４，４′
・・・スイッチ、５，５′・・・変調回Ｌ ６．６’・
・・重畳回路、８，８′・・・増巾器、１０，１０’，
１１，１１’，１２，１２’・・・バンドパスフィルタ
。The figure is a block diagram of a communication circuit using the data transmission device of the present invention. 1.1', 2.2', 3.3'...oscillator, 4,4'
...Switch, 5,5'...Modulation time L 6.6'.
...Superimposition circuit, 8,8'...Amplifier, 10,10',
11, 11', 12, 12'...Band pass filter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電力を供給するための電力線を介してデータ伝送を行う
伝送装置において周波数の異なる複数のパルス発振器と
これ等のパルス発振器のうちの一つを選択する選択手段
と、この選択手段によって選択されたパルス発振器から
のパルスにより電力線にデータを送出するデータ送出手
段と、上記電力線を介して返送されてくるデータを受け
る受信手段と、この受信手段での受信状態番千応じて上
記選択手段の選択状態を変化させる切換手段と、から成
６上記データ送出手段からデータ送出が為されてから所
定時間内に返信データが送られてきたとき、上記選択手
段によるパルス発振器の選択状態を固定するとともに、
所定時間内に返信データが送られて来無かったとき、上
記切換手段で上記選択手段によるパルス発振器の選択状
態を変化させることを特徴としたデータ伝送装置。In a transmission device that transmits data via a power line for supplying power, a plurality of pulse oscillators with different frequencies, a selection means for selecting one of these pulse oscillators, and a pulse selected by the selection means a data sending means for sending data to a power line using pulses from an oscillator; a receiving means for receiving data returned via the power line; and a selection state of the selection means according to a receiving state number of the receiving means. a switching means for changing the pulse oscillator;
A data transmission device characterized in that when no reply data is sent within a predetermined time, the switching means changes the selection state of the pulse oscillator by the selection means.
JP10403784U 1984-07-10 1984-07-10 data transmission equipment Pending JPS6121147U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10403784U JPS6121147U (en) 1984-07-10 1984-07-10 data transmission equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10403784U JPS6121147U (en) 1984-07-10 1984-07-10 data transmission equipment

Publications (1)

Publication Number Publication Date
JPS6121147U true JPS6121147U (en) 1986-02-07

Family

ID=30663401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10403784U Pending JPS6121147U (en) 1984-07-10 1984-07-10 data transmission equipment

Country Status (1)

Country Link
JP (1) JPS6121147U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503601A (en) * 1973-04-25 1975-01-16
JPS57155855A (en) * 1981-03-20 1982-09-27 Nec Corp Communication speed control system
JPS58178650A (en) * 1982-04-14 1983-10-19 Hitachi Denshi Service Kk Automatic controlling mechanism of data transmitting speed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503601A (en) * 1973-04-25 1975-01-16
JPS57155855A (en) * 1981-03-20 1982-09-27 Nec Corp Communication speed control system
JPS58178650A (en) * 1982-04-14 1983-10-19 Hitachi Denshi Service Kk Automatic controlling mechanism of data transmitting speed

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