DE3785115D1 - Schnurloses telephon mit zugriff zu mehreren kanaelen. - Google Patents

Schnurloses telephon mit zugriff zu mehreren kanaelen.

Info

Publication number
DE3785115D1
DE3785115D1 DE8787112034T DE3785115T DE3785115D1 DE 3785115 D1 DE3785115 D1 DE 3785115D1 DE 8787112034 T DE8787112034 T DE 8787112034T DE 3785115 T DE3785115 T DE 3785115T DE 3785115 D1 DE3785115 D1 DE 3785115D1
Authority
DE
Germany
Prior art keywords
channel
cordless telephone
mode
base unit
ram
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.)
Revoked
Application number
DE8787112034T
Other languages
English (en)
Other versions
DE3785115T2 (de
Inventor
Akio Nakanishi
Ken-Ichi Ikegaya
Takao Naitoh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16286562&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3785115(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3785115D1 publication Critical patent/DE3785115D1/de
Publication of DE3785115T2 publication Critical patent/DE3785115T2/de
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • H04M1/72511—Searching for available channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
DE8787112034T 1986-08-19 1987-08-19 Schnurloses telephon mit zugriff zu mehreren kanaelen. Revoked DE3785115T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61192152A JPS6348926A (ja) 1986-08-19 1986-08-19 コ−ドレステレホンのマルチチヤネルアクセス方式

Publications (2)

Publication Number Publication Date
DE3785115D1 true DE3785115D1 (de) 1993-05-06
DE3785115T2 DE3785115T2 (de) 1993-09-16

Family

ID=16286562

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787112034T Revoked DE3785115T2 (de) 1986-08-19 1987-08-19 Schnurloses telephon mit zugriff zu mehreren kanaelen.

Country Status (5)

Country Link
US (1) US4894856A (de)
EP (1) EP0258739B1 (de)
JP (1) JPS6348926A (de)
AT (1) ATE87783T1 (de)
DE (1) DE3785115T2 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249302A (en) * 1987-10-09 1993-09-28 Motorola, Inc. Mixed-mode transceiver system
GB2219466B (en) * 1988-06-06 1992-10-07 Plessey Co Plc Reducing power channel acquisition in a multichannel communication system
JPH0666825B2 (ja) * 1988-09-08 1994-08-24 シャープ株式会社 コードレス電話機
JPH0278331A (ja) * 1988-09-14 1990-03-19 Nec Corp 移動通信用送受信装置
JP3003131B2 (ja) * 1989-01-18 2000-01-24 ソニー株式会社 コードレステレホン
DE3918696A1 (de) * 1989-06-08 1990-12-13 Philips Patentverwaltung Kennungssuche bei nachrichtentechnischen geraeten
US5237603A (en) * 1989-12-11 1993-08-17 Sony Corporation Cordless telephone which intermittently monitors predetermined channels from all available channels
JP2822237B2 (ja) * 1989-12-11 1998-11-11 ソニー株式会社 通信方法及び装置
DE69029926T2 (de) * 1989-12-11 1997-05-28 Sony Corp Schnurloses Telefon
FR2657477A1 (fr) * 1990-01-19 1991-07-26 Cit Alcatel Procede de protection contre la saturation de la base de donnees d'un enregistreur de localisation des visiteurs pour un systeme de radiotelephonie cellulaire.
GB9003637D0 (en) * 1990-02-17 1990-04-11 Plessey Telecomm Telecommunications apparatus
US5044010A (en) * 1990-03-29 1991-08-27 At&T Bell Laboratories Arrangement and method for selecting an available communication channel for a cordless telephone
JP2595758B2 (ja) * 1990-04-24 1997-04-02 日本電気株式会社 コードレス電話方式
JPH048046A (ja) * 1990-04-26 1992-01-13 Fujitsu Ltd システムコードレス電話装置の空きチャンネル検索方法および装置
JP2994019B2 (ja) * 1990-10-18 1999-12-27 株式会社東芝 移動無線通信システムおよび移動親局装置
WO1992008310A1 (en) * 1990-10-26 1992-05-14 Weiser Telecommunications, Inc. Selectable cordless or corded telecommunications system
EP0488173A3 (en) * 1990-11-27 1993-04-28 Canon Kabushiki Kaisha Wireless communication channel selecting method
EP0494461B1 (de) * 1991-01-08 1997-12-03 Thomson Consumer Electronics, Inc. Automatisches Kanalwahlsystem für ein schnurloses Telefon
JPH04293325A (ja) * 1991-03-22 1992-10-16 Nec Corp 無線電話装置
US5259021A (en) * 1991-04-08 1993-11-02 Motorola, Inc. Transmission of interconnection information for next generation cordless telephone networks
CA2067560C (en) * 1991-05-23 1996-11-26 George P. Cotsonas Method and apparatus for resolving contention between multiple base units during a call setup in a public cordless telephone system
US5353341A (en) * 1991-10-21 1994-10-04 At&T Bell Laboratories Cordless telephone arranged for operation in a frequency hopping system
JP2746281B2 (ja) * 1991-11-05 1998-05-06 日本電気株式会社 無線電話システム
DE4138886C1 (de) * 1991-11-27 1993-04-08 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig Hollaend. Stiftung & Co Kg, 8510 Fuerth, De
DE4239416A1 (de) * 1992-11-19 1994-06-01 Deutsche Telephonwerk Kabel Anordnung in Kommunikations-Endgeräten zum Ersatz der Handapparateschnur
DE69333117T2 (de) * 1993-05-27 2004-04-01 Axonn, L.L.C. Funkgerät mit frequenzsprungbetrieb
CN1090418C (zh) * 1994-01-05 2002-09-04 汤姆森消费电子有限公司 无绳电话装置
JP3697732B2 (ja) * 1994-11-29 2005-09-21 ソニー株式会社 コードレス電話機
GB2297013B (en) 1995-01-10 1999-09-15 Nokia Mobile Phones Ltd Portable radio telephones and methods of operation
US5765112A (en) * 1995-06-06 1998-06-09 Flash Comm. Inc. Low cost wide area network for data communication using outbound message specifying inbound message time and frequency
US5589844A (en) * 1995-06-06 1996-12-31 Flash Comm, Inc. Automatic antenna tuner for low-cost mobile radio
CA2222691A1 (en) * 1995-06-06 1996-12-12 Flash Comm, Inc. Determining propagating and clear frequency in wireless data communications network
US5734963A (en) * 1995-06-06 1998-03-31 Flash Comm, Inc. Remote initiated messaging apparatus and method in a two way wireless data communications network
US6912375B2 (en) 1995-06-13 2005-06-28 Canon Kabushiki Kaisha Radio communicating apparatus
US5873026A (en) * 1995-07-07 1999-02-16 Reames; James B. Battery powered voice transmitter and receiver tuned to an RF frequency by the receiver
JPH0927836A (ja) * 1995-07-12 1997-01-28 Uniden Corp 停電検出機能を備えたコードレス電話機
JPH09130853A (ja) * 1995-10-26 1997-05-16 Uniden Corp 通信方法，通信装置及びコードレス電話装置
DE19545893C2 (de) * 1995-12-08 2003-09-25 Rohde & Schwarz System zum automatischen Aufbau einer Funkverbindung zur Datenübertragung zwischen zwei oder mehreren Sender-Empfänger-Stationen
US5809427A (en) * 1996-03-28 1998-09-15 Motorola Inc. Apparatus and method for channel acquisition in a communication system
US6021314A (en) * 1997-05-22 2000-02-01 Advanced Micro Devices, Inc. Free channel selector for selecting an optimal channel
US6215992B1 (en) * 1997-07-29 2001-04-10 Dennis S. Howell Universal dictation input apparatus and method
US5995849A (en) * 1997-11-26 1999-11-30 Direct Wireless Communication Corp. Direct wireless communication system and method of operation
WO2000018041A2 (en) * 1998-09-18 2000-03-30 Harris Corporation Distributed trunking mechanism for vhf networking
US6996088B1 (en) * 1998-09-18 2006-02-07 Harris Corporation Distributed trunking mechanism for VHF networking
US6304756B1 (en) * 1998-11-04 2001-10-16 Legerity, Inc. Channel arbitration between handset and base station in a cordless telephone system
US6799056B2 (en) 2001-01-31 2004-09-28 Joseph Curley Computer system including multi-channel wireless communication link to a remote station
US8155403B2 (en) * 2004-05-05 2012-04-10 University Of Iowa Research Foundation Methods and devices for airway tree labeling and/or matching
KR100774007B1 (ko) * 2005-07-18 2007-11-08 삼성전자주식회사 무선채널 검색 방법, 무선 송수신 시스템 및 무선 송신장치
US8094704B2 (en) 2005-09-15 2012-01-10 Avago Technologies Wiresless IP (Singapore) Pte. Ltd. Detecting wireless channel status from acoustic discrimination of spectral content

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391234B (de) * 1981-09-08 1990-09-10 Center Nachrichtentechnische A Drahtloser telefonapparat
JPS59186436A (ja) * 1983-04-07 1984-10-23 Sony Corp コ−ドレステレホン
US4484355A (en) * 1983-04-11 1984-11-20 Ritron, Inc. Handheld transceiver with frequency synthesizer and sub-audible tone squelch system
JPS6091736A (ja) * 1983-10-26 1985-05-23 Yuniden Kk 受信局における選択呼出信号受信検出回路
JPS61105138A (ja) * 1984-10-29 1986-05-23 Nec Corp 無線電話装置
DE3441907A1 (de) * 1984-11-16 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart Funknetz zum uebertragen von informationen zwischen jeweils einem paar von mehreren funkstationspaaren
JPH0352048Y2 (de) * 1985-04-30 1991-11-11
JPS61274531A (ja) * 1985-05-30 1986-12-04 Nec Corp チヤネル選択方式
US4672657A (en) * 1985-12-17 1987-06-09 Motorola, Inc. Multichannel telephone system
JPH0815351B2 (ja) * 1986-05-31 1996-02-14 日本電気株式会社 コ−ドレス電話方式
JP2580129B2 (ja) * 1986-07-18 1997-02-12 ソニー株式会社 送受信装置
EP0437098A3 (en) * 1990-01-11 1991-09-18 Warner-Lambert Company Compressed confectionery tablets with at least two phases and sequential flavour delivery system

Also Published As

Publication number Publication date
DE3785115T2 (de) 1993-09-16
EP0258739A3 (en) 1989-02-08
JPS6348926A (ja) 1988-03-01
EP0258739B1 (de) 1993-03-31
ATE87783T1 (de) 1993-04-15
EP0258739A2 (de) 1988-03-09
US4894856A (en) 1990-01-16

Similar Documents

Publication Publication Date Title
DE3785115D1 (de) Schnurloses telephon mit zugriff zu mehreren kanaelen.
JPS648733A (en) Portable radio communication equipment
DE69124386D1 (de) Funk-telefon system mit "besetzt" und "ausser bereich" funktionen
CA2037972A1 (en) Arrangement and method for selecting an available communication channel for a cordless telephone
SE8502319D0 (sv) Anleggning och system av anleggningar med berbara, snorlosa telefonapparater
FI964399A0 (fi) Käyttäjäliityntä
SE8803762D0 (sv) Mobilradiotelefonsystem
CA2085686A1 (en) Method and Circuit for Saving the Power of a Battery Used in a Portable Radio Telephone
NO921793L (no) System for optimal signaloverfoering under forflytting i et mobiltelefonnett av kategori cdma
KR920003687A (ko) 이동무선 통신시스템
CA2246324A1 (en) Quality driven voice channel selection in a cellular telephone system using idle voice channel signal strength measurements
EP0241287A3 (de) Kommunikationssystem mit Fähigkeit zur automatischen Teilnehmerbenachrichtigung beim Eintreffen eines freies Kanals
ATE147215T1 (de) Funkgerätekombination, insbesondere kombination von schnurlosem telefonapparat und funkrufempfänger
DE68925166D1 (de) Digitales mobiles Fernsprechgerät
MY110322A (en) Automatic channel selection system for a cordless telephone
EP0379332A3 (de) Schnurlose Telefone
EP0526207A3 (de) Funkverkehrssteuerungsvorrichtung mit Fähigkeit zur schnellen Suche eines freien Kanals im Wartezustand
ES2091148A1 (es) Aparato de telemensajes y radiotelefono.
EP0347167A3 (de) Funkfernsprechapparat
DE69030784D1 (de) Als unabhängige Einheit wirkender Telefonhandapparat
JPS57212856A (en) Terminal adaptor system
JPS566545A (en) Radio device for car telephone
KR970003990Y1 (ko) 무선호출장치
JPS566557A (en) Telephone with redialing function
KR940003410A (ko) 전기통신시스템

Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation