DD295483A5 - Schnurloses telefonsystem - Google Patents

Schnurloses telefonsystem Download PDF

Info

Publication number
DD295483A5
DD295483A5 DD90342366A DD34236690A DD295483A5 DD 295483 A5 DD295483 A5 DD 295483A5 DD 90342366 A DD90342366 A DD 90342366A DD 34236690 A DD34236690 A DD 34236690A DD 295483 A5 DD295483 A5 DD 295483A5
Authority
DD
German Democratic Republic
Prior art keywords
base unit
unit
portable
power
circuits
Prior art date
Application number
DD90342366A
Other languages
German (de)
English (en)
Inventor
Michael K Pedige
Original Assignee
Universal Appliances Limited 8/Fl.,Hk
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 Universal Appliances Limited 8/Fl.,Hk filed Critical Universal Appliances Limited 8/Fl.,Hk
Publication of DD295483A5 publication Critical patent/DD295483A5/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • 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
    • 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
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Devices For Supply Of Signal Current (AREA)
DD90342366A 1989-06-30 1990-06-29 Schnurloses telefonsystem DD295483A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/373,759 US4995072A (en) 1989-06-30 1989-06-30 Self-powered base and remote telephone communication set

Publications (1)

Publication Number Publication Date
DD295483A5 true DD295483A5 (de) 1991-10-31

Family

ID=23473763

Family Applications (1)

Application Number Title Priority Date Filing Date
DD90342366A DD295483A5 (de) 1989-06-30 1990-06-29 Schnurloses telefonsystem

Country Status (9)

Country Link
US (1) US4995072A (xx)
EP (1) EP0405714A3 (xx)
JP (1) JPH0342920A (xx)
CN (1) CN1055632A (xx)
AU (1) AU620011B2 (xx)
CA (1) CA2018510A1 (xx)
DD (1) DD295483A5 (xx)
HU (1) HU904046D0 (xx)
ZA (1) ZA902844B (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170494A (en) * 1988-12-08 1992-12-08 Nokia Mobile Phones Ltd. Two piece radio telephone
DE69222813T2 (de) * 1991-07-19 1998-03-12 Fujitsu Ltd Schnurloses Telefon
JP3610595B2 (ja) * 1994-07-20 2005-01-12 松下電器産業株式会社 コードレス電話装置
US5650668A (en) * 1995-06-23 1997-07-22 Lucent Technologies Inc. Low current voltage regulator circuit
JP3793298B2 (ja) * 1996-11-29 2006-07-05 ユニデン株式会社 電話装置
KR20000065062A (ko) * 1997-02-28 2000-11-06 롤페스 요하네스 게라투스 알베르투스 두 개이상의 장치 유니트 사이에서 유효 신호가 송신되는 장치
JPH10271028A (ja) * 1997-03-25 1998-10-09 Alps Electric Co Ltd セルラ−電話機の受信回路
US6049724A (en) * 1997-07-14 2000-04-11 Conexant Systems, Inc. Ultra-clean voltage power supply generator
US6256518B1 (en) * 1997-10-10 2001-07-03 At&T Corp. System for providing power to a wireless system
US5912514A (en) * 1998-01-06 1999-06-15 Smith Corona Corporation Uninterruptible power supply unit
US20040204154A1 (en) * 2002-03-01 2004-10-14 Li-Jung Chang Wireless transmitter-receiver set for mobile phone
US7076278B2 (en) 2003-03-31 2006-07-11 Vtech Telecommunications Limited Hybrid telephony device
US7245888B2 (en) * 2004-06-16 2007-07-17 Nokia Corporation Phone energy management for low battery voltages
KR100854533B1 (ko) * 2004-06-16 2008-08-26 노키아 코포레이션 저 배터리 전압을 위한 전화 에너지 관리
CN102568620A (zh) * 2011-12-27 2012-07-11 华北电力大学 一种反应堆控制棒驱动机构
CN109507470B (zh) * 2018-11-06 2021-11-05 武汉领普科技有限公司 一种基于极性检测的自供电方法和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930531A1 (de) * 1969-06-16 1970-12-23 Standard Elek K Lorenz Ag Fernsprechteilnehmerstelle mit einer ortsfesten Fernsprechstation und einem schnurlosen Handapparat
US3644681A (en) * 1969-02-10 1972-02-22 Cardwell Oil Corp Ltd N P L Cordless telephone system
JPS5329002A (en) * 1976-08-30 1978-03-17 Nec Corp Power charging system of communication equipmen t
JPS53146505A (en) * 1977-05-27 1978-12-20 Fujitsu Ltd Power circuit for cordless telephone set
US4731814A (en) * 1986-02-21 1988-03-15 AT&T Information Systems Inc. American Telephone & Telegraph Company Computer-controlled cordless telephone
DE3620857A1 (de) * 1986-06-21 1987-12-23 Bosch Gmbh Robert Schnurloses telefon
JP2580129B2 (ja) * 1986-07-18 1997-02-12 ソニー株式会社 送受信装置
JPS6382047A (ja) * 1986-09-26 1988-04-12 Toshiba Corp コ−ドレス電話装置

Also Published As

Publication number Publication date
CN1055632A (zh) 1991-10-23
US4995072A (en) 1991-02-19
AU5719790A (en) 1991-01-03
EP0405714A3 (en) 1992-06-24
AU620011B2 (en) 1992-02-06
ZA902844B (en) 1991-10-30
CA2018510A1 (en) 1990-12-31
EP0405714A2 (en) 1991-01-02
HU904046D0 (en) 1990-12-28
JPH0342920A (ja) 1991-02-25

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