GB2138656B - Cordless telephone systems and methods of preventing interference in such systems - Google Patents

Cordless telephone systems and methods of preventing interference in such systems

Info

Publication number
GB2138656B
GB2138656B GB08408979A GB8408979A GB2138656B GB 2138656 B GB2138656 B GB 2138656B GB 08408979 A GB08408979 A GB 08408979A GB 8408979 A GB8408979 A GB 8408979A GB 2138656 B GB2138656 B GB 2138656B
Authority
GB
United Kingdom
Prior art keywords
systems
methods
cordless telephone
preventing interference
telephone systems
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
Application number
GB08408979A
Other languages
English (en)
Other versions
GB2138656A (en
GB8408979D0 (en
Inventor
Sumio Iwase
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
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB8408979D0 publication Critical patent/GB8408979D0/en
Publication of GB2138656A publication Critical patent/GB2138656A/en
Application granted granted Critical
Publication of GB2138656B publication Critical patent/GB2138656B/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
    • H04M1/72502—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)
GB08408979A 1983-04-07 1984-04-06 Cordless telephone systems and methods of preventing interference in such systems Expired GB2138656B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58061301A JPS59186436A (ja) 1983-04-07 1983-04-07 コ−ドレステレホン

Publications (3)

Publication Number Publication Date
GB8408979D0 GB8408979D0 (en) 1984-05-16
GB2138656A GB2138656A (en) 1984-10-24
GB2138656B true GB2138656B (en) 1986-12-17

Family

ID=13167221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08408979A Expired GB2138656B (en) 1983-04-07 1984-04-06 Cordless telephone systems and methods of preventing interference in such systems

Country Status (8)

Country Link
US (1) US4694485A (en:Method)
JP (1) JPS59186436A (en:Method)
CA (1) CA1206638A (en:Method)
DE (1) DE3413050C2 (en:Method)
FR (1) FR2544153B1 (en:Method)
GB (1) GB2138656B (en:Method)
IT (1) IT1175983B (en:Method)
NL (1) NL193098C (en:Method)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4741019A (en) * 1984-03-15 1988-04-26 Sanyo Electric Co., Ltd. Cordless telephone
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
JPS61161039A (ja) * 1985-01-08 1986-07-21 Victor Co Of Japan Ltd コ−ドレス電話装置
FR2577369A1 (fr) * 1985-02-11 1986-08-14 Fay Stefan De Installation telephonique a postes sans combine et a combine portatif sans fil
JPS61139043U (en:Method) * 1985-02-15 1986-08-28
US4736404A (en) * 1985-03-29 1988-04-05 American Telephone And Telegraph Company, At&T Technologies Inc. Security arrangement for cordless telephone system
JPH0761029B2 (ja) * 1985-06-20 1995-06-28 ソニー株式会社 送受信装置
NL8503382A (nl) * 1985-12-09 1987-07-01 Philips Nv Werkwijze voor het gemeenschappelijk gebruik van duplex-kanalen in een automatisch kanaalkeuzesysteem en automatisch kanaalkeuzesysteem, waarin deze werkwijze wordt toegepast.
AU586603B2 (en) * 1986-04-26 1989-07-13 Nec Corporation Radio key telephone system having a common signaling channel
JPH0815350B2 (ja) * 1986-05-09 1996-02-14 日本電気株式会社 無線電話装置
JPH0815351B2 (ja) * 1986-05-31 1996-02-14 日本電気株式会社 コ−ドレス電話方式
JPS6324726A (ja) * 1986-07-16 1988-02-02 Sony Corp 送受信装置
JP2580129B2 (ja) * 1986-07-18 1997-02-12 ソニー株式会社 送受信装置
JPS6348926A (ja) * 1986-08-19 1988-03-01 Fujitsu Ltd コ−ドレステレホンのマルチチヤネルアクセス方式
JPS6350234A (ja) * 1986-08-20 1988-03-03 Fujitsu Ltd コ−ドレス電話機
JPS6374330A (ja) * 1986-09-18 1988-04-04 Sony Corp 無線通信方法及びそれに用いる通信機
USD302680S (en) 1986-12-16 1989-08-08 Mitsubishi Denki Kabushiki Kaisha Handset telephone
USD297839S (en) 1986-12-16 1988-09-27 Mitsubishi Denki Kabushiki Kaisha Portable handset telephone or similar article
USD301034S (en) 1986-12-16 1989-05-09 Shinichi Fujita Handset telephone
USD298241S (en) 1986-12-19 1988-10-25 Oki Electric Industry Co., Ltd. Portable handset radio telephone
USD298242S (en) 1986-12-19 1988-10-25 Oki Electric Industry Co., Ltd. Portable handset radio telephone
USD298243S (en) 1986-12-27 1988-10-25 Oki Electric Industry Co., Ltd. Portable radio telephone
USD298321S (en) 1986-12-27 1988-11-01 Oki Electric Industry Co., Ltd. Portable handset radio telephone
USD298036S (en) 1986-12-27 1988-10-11 Oki Electric Industry Co., Ltd. Portable handset radio telephone
USD298244S (en) 1986-12-27 1988-10-25 Oki Electric Industry Co., Ltd. Portable handset radio telephone
USD298035S (en) 1986-12-27 1988-10-11 Oki Electric Industry Co., Ltd. Portable handset radio telephone
JPH0695656B2 (ja) * 1987-03-12 1994-11-24 株式会社東芝 無線チヤネルサ−チ方式
JP2557889B2 (ja) * 1987-07-03 1996-11-27 株式会社東芝 無線通信方式
USD303382S (en) 1987-10-07 1989-09-12 Canon Kabushiki Kaisha Telephone
US5020094A (en) * 1987-12-23 1991-05-28 Rash Mark S Cordless telephone network
US5086452A (en) * 1988-06-13 1992-02-04 Kabushiki Kaisha Toshiba Radio telephone system and its control method
JP2692863B2 (ja) * 1988-06-24 1997-12-17 株式会社東芝 無線電話装置
USD316857S (en) 1989-05-24 1991-05-14 Gold Star Telecommunications Co., Ltd. Combined cordless handset
GB9003637D0 (en) * 1990-02-17 1990-04-11 Plessey Telecomm Telecommunications apparatus
DE4026426C2 (de) * 1990-08-21 1999-02-11 Siemens Ag System zur Datenübertragung
USD335667S (en) 1990-11-02 1993-05-18 Clarion Co., Ltd. Base for a mobile telephone
USD327060S (en) 1991-01-07 1992-06-16 General Instrument Corporation Combined remote control and cordless telephone handset and its base with an antenna
USD326449S (en) 1991-01-07 1992-05-26 General Instrument Corporation Combination integral remote control and cordless handset unit together with a telephone base unit with an antenna
DE69128338T2 (de) * 1991-01-08 1998-04-09 Thomson Consumer Electronics Automatisches Kanalwahlsystem für ein schnurloses Telefon
US5375163A (en) * 1991-04-25 1994-12-20 Matsushita Electric Industrial Co., Ltd. Multi-channel cordless telephone system for maintaining master-slave communication
US5388149A (en) * 1991-06-03 1995-02-07 At&T Corp. Method and apparatus for determining availability of a public base unit for communicating with a cordless telephone in a public cordless telephone system
DE4126695A1 (de) * 1991-08-13 1993-02-18 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
DE4126697A1 (de) * 1991-08-13 1993-02-18 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschine
DE4207205A1 (de) * 1992-03-09 1993-09-16 Votronic Entwicklung & Prod Einrichtung zur wechselseitigen uebertragung von analogen und/oder digitalen signalen
DE9207008U1 (de) * 1992-05-23 1993-09-23 Christoph Emmerich GmbH & Co KG, 60435 Frankfurt Drahtloses telekommunikations-endgeraet
USD342261S (en) 1992-09-03 1993-12-14 At&T Bell Laboratories Telephone handset
USD344514S (en) 1992-09-28 1994-02-22 At&T Bell Laboratories Telephone handset
DE4237395C1 (de) * 1992-11-05 1994-02-17 Siemens Ag Verfahren zum Programmieren einer Basisstation mit Hilfe eines Mobilteils
US5826201A (en) * 1992-11-25 1998-10-20 Asterion, Inc. Antenna microwave shield for cellular telephone
JP3319050B2 (ja) * 1993-06-29 2002-08-26 カシオ計算機株式会社 走行状態検出装置
SI9300634A (en) * 1993-12-03 1995-06-30 Ivan Stern Safety preventive method and coresponding device
DE9319508U1 (de) * 1993-12-18 1994-02-17 Hetronic Steuersysteme GmbH, 84085 Langquaid Funkfernsteuerung
WO1995019084A1 (en) * 1994-01-05 1995-07-13 Thomson Consumer Electronics, Inc. Clear channel selection system for a cordless telephone
JPH08102776A (ja) * 1994-09-30 1996-04-16 Sony Corp コードレス電話機
US5870678A (en) * 1994-12-22 1999-02-09 Matsushita Electric Industrial Co., Ltd. Cordless telephone apparatus
JPH08186624A (ja) * 1994-12-28 1996-07-16 Nec Corp コードレス電話システム
CA2221364A1 (en) * 1995-05-18 1996-11-21 Aura Communications, Inc. Short-range magnetic communication system
US5963848A (en) * 1996-04-24 1999-10-05 Motorola, Inc. Method and apparatus for assigning a channel to a mobile unit in a wireless communication system
EP0882349A1 (en) * 1996-11-29 1998-12-09 Koninklijke Philips Electronics N.V. A telecommunications system, a channel extension protocol, and a radio station
DE19705502B4 (de) * 1997-02-13 2009-11-05 Wolfgang Brendel Funkfernsteueranlage
USD413326S (en) 1998-12-31 1999-08-31 Tsai-Sheng Chao Mobile telephone
US9672519B2 (en) * 2012-06-08 2017-06-06 Fmr Llc Mobile device software radio for securely passing financial information between a customer and a financial services firm

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2546985C2 (de) * 1975-10-21 1987-03-12 Robert Bosch Gmbh, 7000 Stuttgart Mehrkanal-Sprechfunkgerät mit einem PLL-(phase locked loop-)Oszillatorkreis
NL7607300A (nl) * 1976-07-02 1978-01-04 Philips Nv Automatisch radio-telefoniesysteem.
JPS5411607A (en) * 1977-06-27 1979-01-27 Fujitsu Ltd Selection system for radio line
JPS55166326A (en) * 1979-06-12 1980-12-25 Nec Corp Channel switching circuit
AT391234B (de) * 1981-09-08 1990-09-10 Center Nachrichtentechnische A Drahtloser telefonapparat
US4467141A (en) * 1981-09-08 1984-08-21 Portaphone Ag Telecommunication system with radio line
SE430013B (sv) * 1981-12-21 1983-10-10 Ericsson Telefon Ab L M Forfarande och anleggning for overforing av telefonsamtal till en berbar, tradlos telefonapparat

Also Published As

Publication number Publication date
IT1175983B (it) 1987-08-12
CA1206638A (en) 1986-06-24
JPS59186436A (ja) 1984-10-23
JPH0471373B2 (en:Method) 1992-11-13
FR2544153A1 (fr) 1984-10-12
DE3413050C2 (de) 1995-08-10
NL193098C (nl) 1998-10-05
IT8420440A0 (it) 1984-04-06
GB2138656A (en) 1984-10-24
GB8408979D0 (en) 1984-05-16
US4694485A (en) 1987-09-15
NL193098B (nl) 1998-06-02
FR2544153B1 (fr) 1989-12-29
DE3413050A1 (de) 1984-10-11
IT8420440A1 (it) 1985-10-06
NL8401128A (nl) 1984-11-01

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20040405