FR2822612B1 - RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE - Google Patents

RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE

Info

Publication number
FR2822612B1
FR2822612B1 FR0103779A FR0103779A FR2822612B1 FR 2822612 B1 FR2822612 B1 FR 2822612B1 FR 0103779 A FR0103779 A FR 0103779A FR 0103779 A FR0103779 A FR 0103779A FR 2822612 B1 FR2822612 B1 FR 2822612B1
Authority
FR
France
Prior art keywords
radio frequency
mobile telephone
multiplexing device
frequency multiplexing
band mobile
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 - Lifetime
Application number
FR0103779A
Other languages
French (fr)
Other versions
FR2822612A1 (en
Inventor
Olivier Jeunet
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.)
Apple Inc
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Priority to FR0103779A priority Critical patent/FR2822612B1/en
Priority to GB0206446A priority patent/GB2375905B/en
Priority to DE2002112380 priority patent/DE10212380B4/en
Publication of FR2822612A1 publication Critical patent/FR2822612A1/en
Application granted granted Critical
Publication of FR2822612B1 publication Critical patent/FR2822612B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • 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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
FR0103779A 2001-03-20 2001-03-20 RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE Expired - Lifetime FR2822612B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR0103779A FR2822612B1 (en) 2001-03-20 2001-03-20 RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE
GB0206446A GB2375905B (en) 2001-03-20 2002-03-19 "Radio-frequency multiplexing device with cross-switching system for dual-band telephone"
DE2002112380 DE10212380B4 (en) 2001-03-20 2002-03-20 Radio frequency cross-talk multiplexing device for a dual band mobile phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0103779A FR2822612B1 (en) 2001-03-20 2001-03-20 RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE

Publications (2)

Publication Number Publication Date
FR2822612A1 FR2822612A1 (en) 2002-09-27
FR2822612B1 true FR2822612B1 (en) 2003-07-11

Family

ID=8861351

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0103779A Expired - Lifetime FR2822612B1 (en) 2001-03-20 2001-03-20 RADIO FREQUENCY MULTIPLEXING DEVICE WITH CROSS CONTROL FOR TWO-BAND MOBILE TELEPHONE

Country Status (3)

Country Link
DE (1) DE10212380B4 (en)
FR (1) FR2822612B1 (en)
GB (1) GB2375905B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0301200D0 (en) 2003-04-24 2003-04-24 Amc Centurion Ab Antenna device and portable radio communication device including such an antenna device
US7197284B2 (en) 2003-04-25 2007-03-27 Telefonaktiebolaget Lm Ericsson (Publ) Antenna switches including field effect transistors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616185C3 (en) * 1976-04-13 1978-10-26 Siemens Ag, 1000 Berlin Und 8000 Muenchen Transceiver with a switchable coupling circuit
US4220874A (en) * 1977-02-15 1980-09-02 Oki Electric Industry Co., Ltd. High frequency semiconductor devices
DE3321354A1 (en) * 1983-06-14 1984-12-20 Philips Patentverwaltung Gmbh, 2000 Hamburg CIRCUIT ARRANGEMENT FROM AN AMPLIFIER AND AN ELECTRONIC SWITCHER
SE518416C2 (en) * 1998-12-22 2002-10-08 Ericsson Telefon Ab L M Antenna Switch Module
WO2000041326A1 (en) * 1999-01-07 2000-07-13 Motorola Inc. A radio frequency (rf) switch using a single quarter wave isolating section and method of forming same
JP2002064301A (en) * 1999-03-18 2002-02-28 Hitachi Metals Ltd High frequency switch module for triple band
US7324493B2 (en) * 2000-06-26 2008-01-29 Matsushita Electric Industrial Co., Ltd. 3-frequency branching circuit, branching circuit and radio communication equipment
DE10030982A1 (en) * 2000-06-30 2002-01-10 Nokia Mobile Phones Ltd Antenna switch for transceiver units in a mobile station

Also Published As

Publication number Publication date
GB2375905A (en) 2002-11-27
DE10212380A1 (en) 2002-10-02
GB2375905B (en) 2004-12-01
GB0206446D0 (en) 2002-05-01
FR2822612A1 (en) 2002-09-27
DE10212380B4 (en) 2006-06-01

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Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name
TP Transmission of property
TP Transmission of property
TP Transmission of property

Owner name: APPLE INC., US

Effective date: 20111229

PLFP Fee payment

Year of fee payment: 16

PLFP Fee payment

Year of fee payment: 17

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

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