JPS56160161A - Data transmitting system - Google Patents

Data transmitting system

Info

Publication number
JPS56160161A
JPS56160161A JP6366780A JP6366780A JPS56160161A JP S56160161 A JPS56160161 A JP S56160161A JP 6366780 A JP6366780 A JP 6366780A JP 6366780 A JP6366780 A JP 6366780A JP S56160161 A JPS56160161 A JP S56160161A
Authority
JP
Japan
Prior art keywords
switch
terminal device
clock pulse
power consumption
analog switch
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
JP6366780A
Other languages
Japanese (ja)
Inventor
Ichiro Yoshihara
Kiyoshi Sone
Kiyoshi Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6366780A priority Critical patent/JPS56160161A/en
Publication of JPS56160161A publication Critical patent/JPS56160161A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Abstract

PURPOSE:To minimize the power consumption at the side of a terminal device, by carrying out an on-off control of a switching element with an analog switch to vary the impedance of the terminal device. CONSTITUTION:An on-off control is given to a transistor TR1 with the data signal itself flowing through a switch SW by means of a C-MOS analog switch 30. Thus a reduction is attained for the power consumption at a terminal device. In such a case, the analog switch is controlled by a clock pulse. The switch 30 is turned on or off when the clock pulse is at a high level or a low level respectively. As a result, the contact current flowing through the switch SW never flows when the clock pulse is at a low level to reduce the power consumption furthermore. In addition, no current flows regardless of the switch SW turned on as long as no clock pulse exists. In such connection, this system is effectively applied particularly to a terminal device incorporating with a battery.
JP6366780A 1980-05-14 1980-05-14 Data transmitting system Pending JPS56160161A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6366780A JPS56160161A (en) 1980-05-14 1980-05-14 Data transmitting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6366780A JPS56160161A (en) 1980-05-14 1980-05-14 Data transmitting system

Publications (1)

Publication Number Publication Date
JPS56160161A true JPS56160161A (en) 1981-12-09

Family

ID=13235920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6366780A Pending JPS56160161A (en) 1980-05-14 1980-05-14 Data transmitting system

Country Status (1)

Country Link
JP (1) JPS56160161A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090455A (en) * 1983-05-31 1985-05-21 M Syst Giken:Kk Device collecting data while supplying power to terminal device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109804A (en) * 1976-01-09 1977-09-14 Post Office Data transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109804A (en) * 1976-01-09 1977-09-14 Post Office Data transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090455A (en) * 1983-05-31 1985-05-21 M Syst Giken:Kk Device collecting data while supplying power to terminal device

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