JPS55147045A - Power supply device for cordless telephone - Google Patents

Power supply device for cordless telephone

Info

Publication number
JPS55147045A
JPS55147045A JP3589080A JP3589080A JPS55147045A JP S55147045 A JPS55147045 A JP S55147045A JP 3589080 A JP3589080 A JP 3589080A JP 3589080 A JP3589080 A JP 3589080A JP S55147045 A JPS55147045 A JP S55147045A
Authority
JP
Japan
Prior art keywords
power supply
master station
charged
cordless telephone
station
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.)
Granted
Application number
JP3589080A
Other languages
Japanese (ja)
Other versions
JPS5856289B2 (en
Inventor
Akihide Nishiyama
Susumu Naka
Tadashi Nishizaki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP55035890A priority Critical patent/JPS5856289B2/en
Publication of JPS55147045A publication Critical patent/JPS55147045A/en
Publication of JPS5856289B2 publication Critical patent/JPS5856289B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/73—Battery saving arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To enable to use the DC power supply which is always being charged, as the auxiliary power supply if the DC power supply for the slave station is discharged, in the master station of cordless telephone set in which the subscriber lines in-house are constituted with radio lines. CONSTITUTION:The master station 1 is connected to the subscriber lines 1, and the master ans slave stations 2 are connected with radio lines. The master station 1 is provided with the chargeable DC power supply, it is always charged, and the power supply to the radio unit in the master station 1 is given from commercial power supply, but on failure, the DC power supply charged is changed over for the power supply of the master station 1. The slave station 2 is provided with the battery for the supply of DC power. The communication without interruption can be made by using the DC power supply charged at the master station 1 if this battery is discharged.
JP55035890A 1980-03-21 1980-03-21 Power supply method for cordless telephones Expired JPS5856289B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55035890A JPS5856289B2 (en) 1980-03-21 1980-03-21 Power supply method for cordless telephones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55035890A JPS5856289B2 (en) 1980-03-21 1980-03-21 Power supply method for cordless telephones

Publications (2)

Publication Number Publication Date
JPS55147045A true JPS55147045A (en) 1980-11-15
JPS5856289B2 JPS5856289B2 (en) 1983-12-14

Family

ID=12454608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55035890A Expired JPS5856289B2 (en) 1980-03-21 1980-03-21 Power supply method for cordless telephones

Country Status (1)

Country Link
JP (1) JPS5856289B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857155U (en) * 1981-10-14 1983-04-18 川崎電気株式会社 Telephone charge indication device
JPS6350234A (en) * 1986-08-20 1988-03-03 Fujitsu Ltd Cordless telephone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857155U (en) * 1981-10-14 1983-04-18 川崎電気株式会社 Telephone charge indication device
JPS6350234A (en) * 1986-08-20 1988-03-03 Fujitsu Ltd Cordless telephone

Also Published As

Publication number Publication date
JPS5856289B2 (en) 1983-12-14

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