DE69131028D1 - Kabelloses Telefon - Google Patents

Kabelloses Telefon

Info

Publication number
DE69131028D1
DE69131028D1 DE69131028T DE69131028T DE69131028D1 DE 69131028 D1 DE69131028 D1 DE 69131028D1 DE 69131028 T DE69131028 T DE 69131028T DE 69131028 T DE69131028 T DE 69131028T DE 69131028 D1 DE69131028 D1 DE 69131028D1
Authority
DE
Germany
Prior art keywords
wireless phone
phone
wireless
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.)
Expired - Fee Related
Application number
DE69131028T
Other languages
English (en)
Other versions
DE69131028T2 (de
Inventor
Masato Yamagata
Kanji Ohnishi
Takeho Yamada
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.)
Sony Corp
Original Assignee
Sony 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
Priority claimed from JP8170190A external-priority patent/JP3057506B2/ja
Priority claimed from JP12037890A external-priority patent/JPH03254554A/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69131028D1 publication Critical patent/DE69131028D1/de
Publication of DE69131028T2 publication Critical patent/DE69131028T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • H04M1/72505—Radio link set-up procedures
    • 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
DE69131028T 1990-01-12 1991-01-02 Kabelloses Telefon Expired - Fee Related DE69131028T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP566790 1990-01-12
JP8170190A JP3057506B2 (ja) 1990-03-29 1990-03-29 コードレステレホン
JP12037890A JPH03254554A (ja) 1990-01-12 1990-05-10 コードレステレホン

Publications (2)

Publication Number Publication Date
DE69131028D1 true DE69131028D1 (de) 1999-04-29
DE69131028T2 DE69131028T2 (de) 1999-09-23

Family

ID=27276844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131028T Expired - Fee Related DE69131028T2 (de) 1990-01-12 1991-01-02 Kabelloses Telefon

Country Status (3)

Country Link
US (1) US5233644A (de)
EP (1) EP0437380B1 (de)
DE (1) DE69131028T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69225084T2 (de) * 1991-03-06 1998-11-12 Nokia Mobile Phones Uk Tragbares Telefon
GB2284127B (en) * 1993-11-22 1998-08-12 Matsushita Electric Ind Co Ltd Cordless telephone system
EP0680188A2 (de) * 1994-04-28 1995-11-02 Uniden America Corporation Schnurloses Telefon zur Verwendung mit einem schnurgebundenen digitalen Telefonapparat
US6049719A (en) * 1994-11-12 2000-04-11 U.S. Philips Corporation Communication system with automatic call diversion or forwarding
JPH0951578A (ja) * 1995-08-04 1997-02-18 Uniden Corp コードレス電話装置
JP2953421B2 (ja) * 1997-02-14 1999-09-27 日本電気株式会社 デジタルコードレス電話機
US8145244B2 (en) * 2008-10-22 2012-03-27 Embarq Holdings Company, Llc System and method for determining base unit position of a cordless handset
US10848863B2 (en) * 2016-01-14 2020-11-24 Harman International Industries, Incorporated Acoustic radiation pattern control

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053717A (en) * 1976-02-27 1977-10-11 David Eugene Snider Cordless telephone
US4450319A (en) * 1981-07-31 1984-05-22 Controlonics Corporation Infrared telephone extension control system
JPS6182560A (ja) * 1984-09-28 1986-04-26 Aisin Seiki Co Ltd 電話装置
JPS6182561A (ja) * 1984-09-28 1986-04-26 Aisin Seiki Co Ltd 電話装置
US4731814A (en) * 1986-02-21 1988-03-15 AT&T Information Systems Inc. American Telephone & Telegraph Company Computer-controlled cordless telephone
JPS6338331A (ja) * 1986-08-01 1988-02-18 Nec Corp 無線電話装置
JPH0646749B2 (ja) * 1986-12-26 1994-06-15 株式会社東芝 無線電話装置
JPH0738744B2 (ja) * 1987-03-23 1995-04-26 株式会社東芝 無線電話装置
JP2507436B2 (ja) * 1987-06-03 1996-06-12 日本電信電話株式会社 親子コ−ドレス電話装置
JPS6489841A (en) * 1987-09-30 1989-04-05 Toshiba Corp Radiotelephony system
JPH01170151A (ja) * 1987-12-24 1989-07-05 Ricoh Co Ltd Ｍｆトーン信号出力方式
JP2664923B2 (ja) * 1988-03-04 1997-10-22 日本電気株式会社 無線電話装置
FR2644167B1 (fr) * 1989-03-10 1991-06-21 Inst Francais Du Petrole Procede de condensation d'au moins un epoxyde sur au moins un anhydride cyclique en presence d'un catalyseur a base d'au moins un complexe de titane
EP0435775B1 (de) * 1989-12-27 1998-12-09 Sony Corporation Schnurloses Telefon

Also Published As

Publication number Publication date
EP0437380A2 (de) 1991-07-17
EP0437380A3 (en) 1992-12-30
DE69131028T2 (de) 1999-09-23
EP0437380B1 (de) 1999-03-24
US5233644A (en) 1993-08-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee