TW234803B - Power relay control circuit for network communication device - Google Patents

Power relay control circuit for network communication device

Info

Publication number
TW234803B
TW234803B TW082108048A TW82108048A TW234803B TW 234803 B TW234803 B TW 234803B TW 082108048 A TW082108048 A TW 082108048A TW 82108048 A TW82108048 A TW 82108048A TW 234803 B TW234803 B TW 234803B
Authority
TW
Taiwan
Prior art keywords
signal
communication device
control circuit
relay control
network communication
Prior art date
Application number
TW082108048A
Other languages
Chinese (zh)
Inventor
Ji-Yeong Suen
Miin-Chang Lin
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW082108048A priority Critical patent/TW234803B/en
Application granted granted Critical
Publication of TW234803B publication Critical patent/TW234803B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A power relay control circuit for network communication device with powersaving feature includes: 1. on/off hook detector connected to the phone line for detecting if thephone is in use and outputting one on/off hook detected signal; 2. ring detector connected to the phone line for detecting the input andgenerating one ringing detected signal; 3. master switch; 4. logic operation for receiving the on/off hook signal, ring signal and theoutput of master switch and outputting one power on signal after logicoperation; 5. relay control circuit for receiving the power on signal from the logicoperation and generating on/off operation to control the on/off of mainpower of communication device.
TW082108048A 1993-09-24 1993-09-24 Power relay control circuit for network communication device TW234803B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW082108048A TW234803B (en) 1993-09-24 1993-09-24 Power relay control circuit for network communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW082108048A TW234803B (en) 1993-09-24 1993-09-24 Power relay control circuit for network communication device

Publications (1)

Publication Number Publication Date
TW234803B true TW234803B (en) 1994-11-21

Family

ID=51348821

Family Applications (1)

Application Number Title Priority Date Filing Date
TW082108048A TW234803B (en) 1993-09-24 1993-09-24 Power relay control circuit for network communication device

Country Status (1)

Country Link
TW (1) TW234803B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233689B1 (en) 1994-09-29 2001-05-15 Maxim Integrated Products, Inc. Communication circuit having network connection detection capability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233689B1 (en) 1994-09-29 2001-05-15 Maxim Integrated Products, Inc. Communication circuit having network connection detection capability

Similar Documents

Publication Publication Date Title
US4508935A (en) Cordless telephone having a remote control function
CA2025140A1 (en) Communication terminal having means for controlling power transfer
CA2148723A1 (en) Diverter Interface Between Two Telecommunication Lines and a Station Set
TW234803B (en) Power relay control circuit for network communication device
MXPA01007337A (en) The testing of telephone lines.
KR910015131A (en) A cordless phone device
KR970004587A (en) Phone having a function of converting voice transmission matters into text transmission matters and outputting the same
JPS648736A (en) Answer-back system
KR950009648B1 (en) Method of control the function of calling telephone for fax
JPS6418383A (en) Warning transmission system
KR860009570A (en) Interphone device with safety function
KR920020913A (en) Door phone interface circuit in key phone system
KR960009823B1 (en) Power control system for p.c.
JPS6478041A (en) Radio telephone set
KR920006207Y1 (en) Telephone automatic stand-by switching circuit
JPS56120251A (en) Generating system for call tone and alarm tone
KR940017640A (en) Method for preventing unauthorized telephone coupler and its device
JPS54139319A (en) Key telephone system
TW264596B (en) Device for preventing telephone lock-control system from being destroyed
JPS5797753A (en) Loop digital data highway device
JPS6436250A (en) Expanded telephone system
KR970008923B1 (en) The loopback control method of common line signal metwork of receiving point in electronic change
ES2146187A1 (en) Telephone line protector
KR920022740A (en) How to automatically switch the dial mode of the phone
JPS6481494A (en) Pushbutton telephone master device