JPH0485892U - - Google Patents

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Publication number
JPH0485892U
JPH0485892U JP12426290U JP12426290U JPH0485892U JP H0485892 U JPH0485892 U JP H0485892U JP 12426290 U JP12426290 U JP 12426290U JP 12426290 U JP12426290 U JP 12426290U JP H0485892 U JPH0485892 U JP H0485892U
Authority
JP
Japan
Prior art keywords
communication device
audio signal
digital signal
diagram showing
communication section
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
JP12426290U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP12426290U priority Critical patent/JPH0485892U/ja
Publication of JPH0485892U publication Critical patent/JPH0485892U/ja
Pending legal-status Critical Current

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Description

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

第１図は本考案のブロツク図、第２図は電力供
給／デイジタル信号通信部２の回路例を示す図、
第３図は第２図の回路の動作を示す波形図、第４
図は電力受電／デイジタル信号通信部１０の回路
例を示す図、第５図は第４図の回路の動作を示す
波形図、第６図は音声信号通信部３の回路例を示
す図、第７図は全体の動作を示すための波形図で
ある。 １……主たる通信装置、２……電力供給／デイ
ジタル信号通信部、３……音声信号通信部、４…
…高周波チヨーク、５……高周波チヨーク、６…
…バイパスコンデンサ、７……バイパスコンデン
サ、８……２本の電線、９……従たる通信装置、
１０……電力受電／デイジタル信号通信部、１１
……高周波チヨーク、１２……高周波チヨーク、
１３……バイパスコンデンサ、１４……バイパス
コンデンサ。 FIG. 1 is a block diagram of the present invention, FIG. 2 is a diagram showing an example of the circuit of the power supply/digital signal communication section 2,
Figure 3 is a waveform diagram showing the operation of the circuit in Figure 2;
5 is a waveform diagram showing the operation of the circuit of FIG. 4. FIG. 6 is a diagram showing an example of the circuit of the audio signal communication section 3. FIG. 7 is a waveform diagram showing the overall operation. DESCRIPTION OF SYMBOLS 1...Main communication device, 2...Power supply/digital signal communication section, 3...Audio signal communication section, 4...
...High frequency chart, 5...High frequency chart, 6...
... Bypass capacitor, 7 ... Bypass capacitor, 8 ... Two electric wires, 9 ... Subordinate communication device,
10...Power receiving/digital signal communication section, 11
...High frequency chiyoke, 12...High frequency chiyoke,
13...Bypass capacitor, 14...Bypass capacitor.

Claims (1)

【実用新案登録請求の範囲】 電力と、デジタル信号と、音声信号とを重畳し
て２本の線により伝送する２線式の通信装置にお
いて、 前記音声信号を周波数変調してから重畳するこ
とを特徴とする通信装置。[Claims for Utility Model Registration] In a two-wire communication device that superimposes electric power, a digital signal, and an audio signal and transmits them through two lines, the audio signal is frequency-modulated and then superimposed. Characteristic communication device.
JP12426290U 1990-11-28 1990-11-28 Pending JPH0485892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12426290U JPH0485892U (en) 1990-11-28 1990-11-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12426290U JPH0485892U (en) 1990-11-28 1990-11-28

Publications (1)

Publication Number Publication Date
JPH0485892U true JPH0485892U (en) 1992-07-27

Family

ID=31871921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12426290U Pending JPH0485892U (en) 1990-11-28 1990-11-28

Country Status (1)

Country Link
JP (1) JPH0485892U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214124A (en) * 1984-04-09 1985-10-26 Matsushita Electric Ind Co Ltd Signal transmitter
JPH02154597A (en) * 1988-12-07 1990-06-13 Hitachi Chem Co Ltd Automation system control system
JPH03140075A (en) * 1989-10-26 1991-06-14 Mitsubishi Electric Corp Television doorphone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60214124A (en) * 1984-04-09 1985-10-26 Matsushita Electric Ind Co Ltd Signal transmitter
JPH02154597A (en) * 1988-12-07 1990-06-13 Hitachi Chem Co Ltd Automation system control system
JPH03140075A (en) * 1989-10-26 1991-06-14 Mitsubishi Electric Corp Television doorphone

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