IT1206690B - Apparecchiatura per trasmissione telefonica senza filo. - Google Patents

Apparecchiatura per trasmissione telefonica senza filo.

Info

Publication number: IT1206690B
Authority: IT; Italy
Prior art keywords: wireless telephone; transmission equipment; telephone transmission; equipment; wireless
Prior art date: 1982-07-06

Application number

IT8321936A

Other languages

English (en)

Other versions

IT8321936A0 (it

Inventor

Dag Eison Akerberg

Original Assignee

Ericsson Telefon Ab L M

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.)

1982-07-06

Filing date

1983-07-05

Publication date

1989-04-27

1983-07-05 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1983-07-05 Publication of IT8321936A0 publication Critical patent/IT8321936A0/it

1989-04-27 Application granted granted Critical

1989-04-27 Publication of IT1206690B publication Critical patent/IT1206690B/it

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
- H04M1/733—Cordless telephones with a plurality of base stations connected to a plurality of lines
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Mobile Radio Communication Systems (AREA)
Time-Division Multiplex Systems (AREA)
Transceivers (AREA)
Telephonic Communication Services (AREA)

IT8321936A 1982-07-06 1983-07-05 Apparecchiatura per trasmissione telefonica senza filo. IT1206690B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8204187A SE453449B (sv)	1982-07-06	1982-07-06	Anleggning for tradlos overforing av telefonsamtal

Publications (2)

Publication Number	Publication Date
IT8321936A0 IT8321936A0 (it)	1983-07-05
IT1206690B true IT1206690B (it)	1989-04-27

Family

ID=20347310

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT8321936A IT1206690B (it)	1982-07-06	1983-07-05	Apparecchiatura per trasmissione telefonica senza filo.

Country Status (9)

Country	Link
US (1)	US4682350A (it)
EP (1)	EP0112850B1 (it)
JP (1)	JPS59501240A (it)
CA (1)	CA1197640A (it)
DE (1)	DE3366796D1 (it)
DK (1)	DK159705C (it)
IT (1)	IT1206690B (it)
SE (1)	SE453449B (it)
WO (1)	WO1984000455A1 (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2151436A (en) *	1983-12-09	1985-07-17	Philips Electronic Associated	Duplex speech transmission method and a system therefor
US4741019A (en) *	1984-03-15	1988-04-26	Sanyo Electric Co., Ltd.	Cordless telephone
GB8418935D0 (en) *	1984-07-25	1984-08-30	Racal Res Ltd	Duplex communications
US4737975A (en) *	1984-09-18	1988-04-12	Metrofone, Inc.	Programmable system for interfacing a standard telephone set with a radio transceiver
US4675863A (en)	1985-03-20	1987-06-23	International Mobile Machines Corp.	Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
SE448199B (sv) *	1985-05-09	1987-01-26	Ericsson Telefon Ab L M	Anleggning med flera berbara, snorlosa telefonapparater
EP0261127B2 (en) *	1986-03-25	2005-07-20	Motorola, Inc.	Tdm communication system for efficient spectrum utilization
US4754450A (en) *	1986-03-25	1988-06-28	Motorola, Inc.	TDM communication system for efficient spectrum utilization
JPS63151119A (ja) *	1986-12-15	1988-06-23	Nec Corp	プレス検出回路
US4935927A (en) *	1987-11-20	1990-06-19	International Mobile Machines Corporation	Base station emulator
US5930297A (en) *	1989-11-20	1999-07-27	Interdigital Technology Corporation	Base station emulator
US7106819B1 (en)	1987-11-20	2006-09-12	Interdigital Technology Corporation	Plural subscriber system utilizing synchronized timeslots on a single frequency
US5495508A (en) *	1987-11-20	1996-02-27	Interdigital Technology Corporation	Base station emulator
US5490167A (en) *	1989-08-09	1996-02-06	Touhoku-Denryoku Kabushiki Kaisha	Duplex voice communication radio transmitter-receiver
JPH04342345A (ja) *	1991-05-20	1992-11-27	Pioneer Commun Corp	コードレス電話の一斉音声呼出し方式
EP0523366A3 (en) *	1991-06-27	1993-06-23	Siemens Aktiengesellschaft	Method for reducing power consumption in the mobile part of a cordless telephone
FI103442B (fi) *	1993-09-24	1999-06-30	Nokia Telecommunications Oy	Digitaalinen radiolinkkijärjestelmä ja radiolinkkilaite
US5546383A (en)	1993-09-30	1996-08-13	Cooley; David M.	Modularly clustered radiotelephone system
US6075831A (en) *	1995-12-29	2000-06-13	Advanced Micro Devices	FIFO and system synchronization system and method
JP2000036702A (ja) *	1998-07-21	2000-02-02	Hitachi Ltd	無線端末
JP3784583B2 (ja) *	1999-08-13	2006-06-14	沖電気工業株式会社	音声蓄積装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3673335A (en) *	1970-08-24	1972-06-27	Bell Telephone Labor Inc	Switching of time division multiplex lines and analog trunks through telephone central offices
GB1364808A (en) *	1971-12-08	1974-08-29	Sendai Television Broadcasting	Simultaneous radio communication system
NL7511562A (nl) *	1975-02-05	1976-08-09	Chiba Communications Ind	Radiocommunicatie-stelsel met mogelijkheid van gelijktijdige communicatie tussen radioposten.
JPS5335411A (en) *	1976-09-14	1978-04-01	Sony Corp	Communicating method for dual directions
US4268722A (en) *	1978-02-13	1981-05-19	Motorola, Inc.	Radiotelephone communications system
JPS5548812A (en) *	1978-10-02	1980-04-08	Yorimoto Tanno	Compressing and expanding unit for time axis of audio
GB2043400A (en) *	1979-02-23	1980-10-01	Tung Chen Wang	Portable telephone set coupled to a telephone line by a radio link
GB2109197B (en) *	1981-10-13	1985-12-04	Standard Telephones Cables Ltd	Radio system
CA1181184A (en) *	1982-07-29	1985-01-15	Ephraim Arnon	Time compression multiplex digital transmission system

1982
- 1982-07-06 SE SE8204187A patent/SE453449B/sv not_active IP Right Cessation
1983
- 1983-06-02 WO PCT/SE1983/000220 patent/WO1984000455A1/en not_active Ceased
- 1983-06-02 JP JP58501893A patent/JPS59501240A/ja active Pending
- 1983-06-02 EP EP83901843A patent/EP0112850B1/en not_active Expired
- 1983-06-02 DE DE8383901843T patent/DE3366796D1/de not_active Expired
- 1983-06-22 CA CA000430934A patent/CA1197640A/en not_active Expired
- 1983-07-05 IT IT8321936A patent/IT1206690B/it active
1984
- 1984-02-29 DK DK146184A patent/DK159705C/da not_active IP Right Cessation
1986
- 1986-04-10 US US06/850,222 patent/US4682350A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0112850B1 (en)	1986-10-08
SE8204187L (it)	1984-01-07
DK159705B (da)	1990-11-19
JPS59501240A (ja)	1984-07-12
DK146184A (da)	1984-02-29
EP0112850A1 (en)	1984-07-11
CA1197640A (en)	1985-12-03
IT8321936A0 (it)	1983-07-05
SE453449B (sv)	1988-02-01
SE8204187D0 (sv)	1982-07-06
DE3366796D1 (en)	1986-11-13
DK146184D0 (da)	1984-02-29
WO1984000455A1 (en)	1984-02-02
US4682350A (en)	1987-07-21
DK159705C (da)	1991-04-15

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19950714

Publication	Publication Date	Title
IT8321936A0 (it)	1983-07-05	Apparecchiatura per trasmissione telefonica senza filo.
IT8022510A0 (it)	1980-06-03	Apparecchiatura perfezionata di comunicazione di messaggi.
NO155368C (no)	1987-03-18	Traadloest telefonapparat.
DE3484672D1 (de)	1991-07-11	Mobilfunk-uebertragungssystem.
NL193098B (nl)	1998-06-02	Snoerloos telefoontoestel.
NO162575C (no)	1990-01-17	Laaseanordning.
DE3381415D1 (de)	1990-05-10	Quergetriebe.
CA51085S (en)	1983-03-21	Telecommunications handset
DE3854322D1 (de)	1995-09-21	Funkfernsprechapparat.
GB8311432D0 (en)	1983-06-02	Communication networks
IT8223041A0 (it)	1982-08-30	Telefono con altoparlante.
DK63281A (da)	1981-08-20	Telefonkredsloeb
FI840517A7 (fi)	1984-02-08	Nostolaitteisto.
FI844329A7 (fi)	1985-06-23	Siirrettävä porauslaitteisto.
JPS57129035A (en)	1982-08-10	Radio telephone system
GB2072465B (en)	1984-02-22	Telephone transmission circuit
IT8321387A0 (it)	1983-05-31	Indicatore telefonico.
ES268626Y (es)	1983-12-16	Perfeccionamientos en disposiciones de pulsadores para aparatos receptores de telecomunicacion.
NO160939C (no)	1989-06-14	Laaseanordning.
ES521575A0 (es)	1984-01-16	Instalacion radiotelefonica.
FI862115L (fi)	1986-11-22	Telefonapparat foer bords- och vaeggbruk.
DE3381372D1 (de)	1990-04-26	Endverschluss.
JPS5652266A (en)	1981-05-11	Mobile form equipment
FI832612A7 (fi)	1984-01-20	Suulakepursotuslaitteisto.
GB2075304B (en)	1983-09-21	Telephone receiving equipment