NO175129C - Kvadraturmottaker - Google Patents

Kvadraturmottaker

Info

Publication number
NO175129C
NO175129C NO891694A NO891694A NO175129C NO 175129 C NO175129 C NO 175129C NO 891694 A NO891694 A NO 891694A NO 891694 A NO891694 A NO 891694A NO 175129 C NO175129 C NO 175129C
Authority
NO
Norway
Prior art keywords
mixers
receiving path
quadrature
signal
fed
Prior art date
Application number
NO891694A
Other languages
English (en)
Other versions
NO175129B (no
NO891694L (no
NO891694D0 (no
Inventor
Dietrich Rother
Bernd Ripka
Reiner Berger
Original Assignee
Alcatel Nv
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 Alcatel Nv filed Critical Alcatel Nv
Publication of NO891694D0 publication Critical patent/NO891694D0/no
Publication of NO891694L publication Critical patent/NO891694L/no
Publication of NO175129B publication Critical patent/NO175129B/no
Publication of NO175129C publication Critical patent/NO175129C/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Retarders (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Pinball Game Machines (AREA)
  • Structure Of Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Surgical Instruments (AREA)
NO891694A 1988-05-04 1989-04-25 Kvadraturmottaker NO175129C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3815055A DE3815055A1 (de) 1988-05-04 1988-05-04 Quadratur-empfaenger

Publications (4)

Publication Number Publication Date
NO891694D0 NO891694D0 (no) 1989-04-25
NO891694L NO891694L (no) 1989-11-06
NO175129B NO175129B (no) 1994-05-24
NO175129C true NO175129C (no) 1994-08-31

Family

ID=6353525

Family Applications (1)

Application Number Title Priority Date Filing Date
NO891694A NO175129C (no) 1988-05-04 1989-04-25 Kvadraturmottaker

Country Status (8)

Country Link
US (1) US4955039A (no)
EP (1) EP0344467B1 (no)
AT (1) ATE79706T1 (no)
CA (1) CA1290403C (no)
DE (2) DE3815055A1 (no)
ES (1) ES2035414T3 (no)
FI (1) FI96812C (no)
NO (1) NO175129C (no)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3938126A1 (de) * 1989-11-16 1991-05-23 Philips Patentverwaltung Empfaenger mit direkter quadratur-abtastung des eingangssignals
GB2239143B (en) * 1989-12-16 1993-06-16 Stc Plc Cross-coupled mixer stage for zero if radio
US5222253A (en) * 1990-08-29 1993-06-22 Motorola, Inc. Transient suppression circuit for a time domain duplex transceiver
JP3068188B2 (ja) * 1991-11-25 2000-07-24 ジーメンス アクチエンゲゼルシャフト エスターライヒ 直交変調適用下での復調方法
US5375258A (en) * 1992-12-07 1994-12-20 Motorola, Inc. Circuit for generating signals in phase quadrature and associated method therefor
EP0701745B1 (en) * 1993-06-04 1999-09-15 Rca Thomson Licensing Corporation Direct conversion tuner
US5412351A (en) * 1993-10-07 1995-05-02 Nystrom; Christian Quadrature local oscillator network
FI951918A (fi) * 1995-04-21 1996-10-22 Nokia Mobile Phones Ltd Lähetin-vastaanotinlaite ja menetelmä kompleksien I/Q-signaalin synnyttämiseksi ja käsittelemiseksi
GB9617423D0 (en) * 1995-10-11 1996-10-02 Philips Electronics Nv Receiver circuit
FR2742620B1 (fr) * 1995-12-15 1998-02-20 Matra Communication Dispositif melangeur a rejection de frequence image
US6498929B1 (en) * 1996-06-21 2002-12-24 Kabushiki Kaisha Toshiba Receiver having DC offset decreasing function and communication system using the same
US5787362A (en) * 1996-07-08 1998-07-28 Nokia Mobile Phones Limited AM removal from FM signal generated by IQ modulator
US5768691A (en) * 1996-08-07 1998-06-16 Nokia Mobile Phones Limited Antenna switching circuits for radio telephones
GB2325102B (en) * 1997-05-09 2001-10-10 Nokia Mobile Phones Ltd Down conversion mixer
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
EP0977351B1 (en) 1998-07-30 2004-02-18 Motorola Semiconducteurs S.A. Method and apparatus for radio communication
GB2344712B (en) * 1998-12-12 2003-10-08 Roke Manor Research Improvements in or relating to receivers
US6396881B1 (en) 1999-02-19 2002-05-28 Stanley A. White Minimum-delay frequency-shift-compensating complex demodulator with arbitrary phase adjustment
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
JP4123320B2 (ja) * 1999-09-17 2008-07-23 ソニー株式会社 受信機およびそのｉｃ
US6671332B1 (en) * 1999-10-08 2003-12-30 Medtronic, Inc. Zero IF receiver with reduced AM detector
US6868128B1 (en) 2000-07-05 2005-03-15 Rfmd Wpan, Inc. Method and apparatus for calibrating DC-offsets in a direct conversion receiver
US20030072389A1 (en) * 2001-08-13 2003-04-17 Li Frank Xiaohui Precision inphase / Quadrature up-down converter structures and methods
US7003263B2 (en) * 2003-05-12 2006-02-21 Lucent Technologies Inc. Telecommunications receiver and a transmitter
US20110043286A1 (en) * 2009-08-18 2011-02-24 Gerald Youngblood Direct conversion receiver

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2435687C3 (de) * 1974-07-24 1979-06-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Empfangen von isochron binär modulierten Signalen in Fernmeldeanlagen
GB1530602A (en) * 1975-10-14 1978-11-01 Standard Telephones Cables Ltd Demodulator for fm signals
US4397039A (en) * 1980-12-29 1983-08-02 International Business Machines Corporation Instantaneous phase tracking in single sideband systems
US4476585A (en) * 1982-01-25 1984-10-09 International Telephone And Telegraph Corporation Baseband demodulator for FM signals
NL8301651A (nl) * 1983-05-10 1984-12-03 Philips Nv Menginrichting voorzien van eerste en tweede kwadratuurmengtrappen.
US4736390A (en) * 1986-10-15 1988-04-05 Itt Avionics, A Division Of Itt Corporation Zero IF radio receiver apparatus
US4852123A (en) * 1988-02-05 1989-07-25 Motorola, Inc. Nearly DC IF phase locked transceiver

Also Published As

Publication number Publication date
FI892081A (fi) 1989-11-05
DE58902067D1 (de) 1992-09-24
CA1290403C (en) 1991-10-08
US4955039A (en) 1990-09-04
FI96812B (fi) 1996-05-15
NO175129B (no) 1994-05-24
DE3815055A1 (de) 1989-11-16
ES2035414T3 (es) 1993-04-16
FI892081A0 (fi) 1989-05-02
EP0344467A1 (de) 1989-12-06
FI96812C (fi) 1996-08-26
ATE79706T1 (de) 1992-09-15
EP0344467B1 (de) 1992-08-19
NO891694L (no) 1989-11-06
NO891694D0 (no) 1989-04-25

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN OCTOBER 2002