JPH03150933A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPH03150933A
JPH03150933A JP29085689A JP29085689A JPH03150933A JP H03150933 A JPH03150933 A JP H03150933A JP 29085689 A JP29085689 A JP 29085689A JP 29085689 A JP29085689 A JP 29085689A JP H03150933 A JPH03150933 A JP H03150933A
Authority
JP
Japan
Prior art keywords
power line
equipment
data
modulation
equipments
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
JP29085689A
Other languages
Japanese (ja)
Inventor
Masatoshi Kimura
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP29085689A priority Critical patent/JPH03150933A/en
Publication of JPH03150933A publication Critical patent/JPH03150933A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce number of pins of a connector interconnecting equipments by superimposing a modulation signal onto a power line driving circuit components in the equipment so as to send a data between the equipments.
CONSTITUTION: When a data signal is sent from an equipment to other equipment, e.g. from a storage device 1 to a terminal equipment 30, a modulation demodulation circuit 4a superimposes a modulation signal of a sent data signal onto a power line 16a. The modulation signal on the power line 16a is inputted to a modulation demodulation circuit 4b via a power line 16b and demodulated to be a demodulation signal representing a sent data. Thus, it is not required to provide exclusive signals pins for data transmission and reception to the connector interconnecting equipments and number of pins of the connector is reduced.
COPYRIGHT: (C)1991,JPO&Japio
JP29085689A 1989-11-07 1989-11-07 Data transmission system Pending JPH03150933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29085689A JPH03150933A (en) 1989-11-07 1989-11-07 Data transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29085689A JPH03150933A (en) 1989-11-07 1989-11-07 Data transmission system

Publications (1)

Publication Number Publication Date
JPH03150933A true JPH03150933A (en) 1991-06-27

Family

ID=17761379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29085689A Pending JPH03150933A (en) 1989-11-07 1989-11-07 Data transmission system

Country Status (1)

Country Link
JP (1) JPH03150933A (en)

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