GB2352945B - Mobile telephone comprising a device for the transmission/of a phase and amplitude modulated signal and associated method - Google Patents

Mobile telephone comprising a device for the transmission/of a phase and amplitude modulated signal and associated method

Info

Publication number
GB2352945B
GB2352945B GB0014369A GB0014369A GB2352945B GB 2352945 B GB2352945 B GB 2352945B GB 0014369 A GB0014369 A GB 0014369A GB 0014369 A GB0014369 A GB 0014369A GB 2352945 B GB2352945 B GB 2352945B
Authority
GB
United Kingdom
Prior art keywords
phase
transmission
modulated signal
mobile telephone
amplitude modulated
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
GB0014369A
Other versions
GB2352945A (en
GB0014369D0 (en
Inventor
Fernando Romao
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.)
Sagem SA
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
Publication of GB0014369D0 publication Critical patent/GB0014369D0/en
Publication of GB2352945A publication Critical patent/GB2352945A/en
Application granted granted Critical
Publication of GB2352945B publication Critical patent/GB2352945B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB0014369A 1999-06-15 2000-06-14 Mobile telephone comprising a device for the transmission/of a phase and amplitude modulated signal and associated method Expired - Lifetime GB2352945B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9907561A FR2795280B1 (en) 1999-06-15 1999-06-15 MOBILE TELEPHONE COMPRISING A DEVICE FOR TRANSMITTING A MODULATED PHASE AND AMPLITUDE SIGNAL AND ITS ASSOCIATED METHOD

Publications (3)

Publication Number Publication Date
GB0014369D0 GB0014369D0 (en) 2000-08-02
GB2352945A GB2352945A (en) 2001-02-07
GB2352945B true GB2352945B (en) 2004-03-03

Family

ID=9546815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0014369A Expired - Lifetime GB2352945B (en) 1999-06-15 2000-06-14 Mobile telephone comprising a device for the transmission/of a phase and amplitude modulated signal and associated method

Country Status (3)

Country Link
DE (1) DE10029117A1 (en)
FR (1) FR2795280B1 (en)
GB (1) GB2352945B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10138225C2 (en) * 2001-08-03 2003-06-26 Siemens Ag Mobile radio device and method for transmission
FR2828963B1 (en) * 2001-08-22 2003-11-07 Excem METHOD AND DEVICE FOR GENERATING A MODULATED SIGNAL WITH HIGH EFFICIENCY
DE10209516A1 (en) 2002-03-04 2003-07-17 Infineon Technologies Ag UMTS transmitter has selectable phase only or phase with amplitude modulation.
DE10257435B3 (en) * 2002-11-14 2004-09-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. transmitting stage
DE50305069D1 (en) 2002-11-14 2006-10-26 Fraunhofer Ges Forschung SENDING STAGE WITH PHASES AND AMPLITUDE RULEBAR
DE10259356A1 (en) * 2002-12-18 2004-07-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. transmitting stage
FR2871000B1 (en) * 2004-05-25 2006-08-11 St Microelectronics Sa MODULATION DEVICE AND TRANSMITTER COMPRISING SUCH A DEVICE
DE102005032060A1 (en) * 2005-07-08 2007-01-18 Infineon Technologies Ag Transmission arrangement, transceiver with the transmission arrangement and method for signal processing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955072A (en) * 1988-09-15 1990-09-04 Asea Brown Boveri Ltd Method of generating an amplitude-modulated ISB transmission signal and apparatus for carrying out the method
GB2291754A (en) * 1994-02-23 1996-01-31 Motorola Inc Power amplifier having nested amplitude modulation controller and phase modulation controller
EP0708545A2 (en) * 1994-10-21 1996-04-24 Deutsche Telekom AG Narrowband QAM transmission
WO1999025104A1 (en) * 1997-11-07 1999-05-20 Telefonaktiebolaget Lm Ericsson (Publ) Qam modulation using direct digital synthesis and upconversion
EP0942563A2 (en) * 1998-03-13 1999-09-15 Conexant Systems, Inc. Non-linear constant envelope modulator and transmitter architecture
WO2000031881A1 (en) * 1998-11-19 2000-06-02 Cadence Design Systems Inc. Linear rf power amplifier and transmitter
EP1035701A1 (en) * 1999-03-08 2000-09-13 Motorola, Inc. Modulator using envelope elimination and restoration by means of look-up tables

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353311A (en) * 1992-01-09 1994-10-04 Nec Corporation Radio transmitter
GB9316869D0 (en) * 1993-08-13 1993-09-29 Philips Electronics Uk Ltd Transmitter and power amplifier therefor
US5974305A (en) * 1997-05-15 1999-10-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations
US5831475A (en) * 1997-08-04 1998-11-03 Motorola, Inc. Method and apparatus for delay matching in a power amplifier
US6125266A (en) * 1997-12-31 2000-09-26 Nokia Mobile Phones Limited Dual band architectures for mobile stations having transmitter linearization feedback

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955072A (en) * 1988-09-15 1990-09-04 Asea Brown Boveri Ltd Method of generating an amplitude-modulated ISB transmission signal and apparatus for carrying out the method
GB2291754A (en) * 1994-02-23 1996-01-31 Motorola Inc Power amplifier having nested amplitude modulation controller and phase modulation controller
EP0708545A2 (en) * 1994-10-21 1996-04-24 Deutsche Telekom AG Narrowband QAM transmission
WO1999025104A1 (en) * 1997-11-07 1999-05-20 Telefonaktiebolaget Lm Ericsson (Publ) Qam modulation using direct digital synthesis and upconversion
EP0942563A2 (en) * 1998-03-13 1999-09-15 Conexant Systems, Inc. Non-linear constant envelope modulator and transmitter architecture
WO2000031881A1 (en) * 1998-11-19 2000-06-02 Cadence Design Systems Inc. Linear rf power amplifier and transmitter
EP1035701A1 (en) * 1999-03-08 2000-09-13 Motorola, Inc. Modulator using envelope elimination and restoration by means of look-up tables

Also Published As

Publication number Publication date
GB2352945A (en) 2001-02-07
FR2795280B1 (en) 2001-08-10
DE10029117A1 (en) 2001-02-08
FR2795280A1 (en) 2000-12-22
GB0014369D0 (en) 2000-08-02

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120426 AND 20120502

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120503 AND 20120509

PE20 Patent expired after termination of 20 years

Expiry date: 20200613