PT90679A - Modulo de recepcao fm - Google Patents

Modulo de recepcao fm

Info

Publication number
PT90679A
PT90679A PT90679A PT9067989A PT90679A PT 90679 A PT90679 A PT 90679A PT 90679 A PT90679 A PT 90679A PT 9067989 A PT9067989 A PT 9067989A PT 90679 A PT90679 A PT 90679A
Authority
PT
Portugal
Prior art keywords
unit
receiving
characteristic
interference states
circuits
Prior art date
Application number
PT90679A
Other languages
English (en)
Other versions
PT90679B (pt
Inventor
Jens Hansen
Original Assignee
H U C Elektronik Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6355680&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT90679(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by H U C Elektronik Gmbh filed Critical H U C Elektronik Gmbh
Publication of PT90679A publication Critical patent/PT90679A/pt
Publication of PT90679B publication Critical patent/PT90679B/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/005—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling a bandpass filter
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • H04B1/1669—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silicon Polymers (AREA)
  • Superheterodyne Receivers (AREA)
PT90679A 1988-05-30 1989-05-30 Modulo de recepcao fm PT90679B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3818752A DE3818752A1 (de) 1988-05-30 1988-05-30 Fm-empfangsteil

Publications (2)

Publication Number Publication Date
PT90679A true PT90679A (pt) 1989-11-30
PT90679B PT90679B (pt) 1995-03-31

Family

ID=6355680

Family Applications (1)

Application Number Title Priority Date Filing Date
PT90679A PT90679B (pt) 1988-05-30 1989-05-30 Modulo de recepcao fm

Country Status (11)

Country Link
US (1) US5251332A (pt)
EP (1) EP0417148B1 (pt)
JP (1) JPH03504672A (pt)
AT (1) ATE100650T1 (pt)
AU (1) AU635206B2 (pt)
BR (1) BR8907460A (pt)
DE (2) DE3818752A1 (pt)
FI (1) FI905850A0 (pt)
MY (1) MY105250A (pt)
PT (1) PT90679B (pt)
WO (1) WO1989012357A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015568A1 (de) * 1992-01-27 1993-08-05 H.U.C. Elektronik Gmbh Verfahren zur erzeugung eines nachbarkanalstörungen anzeigenden signals
DE4235852A1 (de) * 1992-10-23 1994-04-28 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Steuerung der Störfestigkeit bei einem Empfangsgerät
US6313620B1 (en) 1995-09-14 2001-11-06 Northrop Grumman Corporation Detector system for identifying the frequency of a received signal useful in a channelized receiver
SE521875C2 (sv) 1998-12-23 2003-12-16 Ericsson Telefon Ab L M Förfarande och anordning i ett radiokommunikationssystem
US7877290B1 (en) 1999-03-29 2011-01-25 The Directv Group, Inc. System and method for transmitting, receiving and displaying advertisements
US7552458B1 (en) 1999-03-29 2009-06-23 The Directv Group, Inc. Method and apparatus for transmission receipt and display of advertisements
US7085529B1 (en) 2001-10-24 2006-08-01 The Directv Group, Inc. Method and apparatus for determining a direct-to-home satellite receiver multi-switch type
US20060203946A1 (en) * 2005-03-11 2006-09-14 Lockheed Martin Corporation Channelized receiver system with architecture for signal detection and discrimination
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
FR2944929B1 (fr) * 2009-04-23 2016-06-24 Continental Automotive France Systeme a interface numerique pour la reception et le traitement numerique de signaux radiofrequence et procede associe
US8634793B2 (en) * 2010-05-10 2014-01-21 Csr Technology Inc. IP2 calibration measurement and signal generation
US8687947B2 (en) 2012-02-20 2014-04-01 Rr Donnelley & Sons Company Systems and methods for variable video production, distribution and presentation

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL67099C (pt) * 1940-06-29
US3231822A (en) * 1961-12-22 1966-01-25 Bell Telephone Labor Inc Frequency modulation feedback receiver
JPS52119108A (en) * 1976-03-31 1977-10-06 Sansui Electric Co Muutuning device
JPS539403A (en) 1976-07-14 1978-01-27 Pioneer Electronic Corp Fm stereophonic receiver
US4081771A (en) * 1976-12-06 1978-03-28 Zenith Radio Corporation 82 Detent manual varactor tuning system
US4192970A (en) * 1977-01-31 1980-03-11 Kahn Leonard R Reduction of adjacent channel interference
US4356567A (en) * 1977-06-28 1982-10-26 Pioneer Electronic Corporation Radio receiver with bandwidth switching
JPS5828968B2 (ja) * 1977-08-31 1983-06-20 ソニー株式会社 Ｐｌｌ方式周波数シンセサイザチュ−ナ
US4267605A (en) * 1979-02-26 1981-05-12 Trio Kabushiki Kaisha Interference eliminator in communication receiver
DE2929647C2 (de) * 1979-07-21 1990-09-13 Blaupunkt-Werke Gmbh, 3200 Hildesheim UKW-Stereo-Autoempfänger
US4352208A (en) * 1980-03-04 1982-09-28 Motorola, Inc. Automatic IF selectivity for radio receiver system
US4385402A (en) * 1980-04-16 1983-05-24 Redifon Telecommunications Limited Switchable filter circuits
JPS5733834A (en) * 1980-08-07 1982-02-24 Clarion Co Ltd Frequency modulation noise reducing circuit
FR2490427B1 (fr) * 1980-09-16 1986-04-18 Thomson Csf Demodulateur d'un signal module en frequence et systeme de television comportant un tel demodulateur
DE3048263A1 (de) * 1980-12-20 1982-07-29 Blaupunkt-Werke Gmbh, 3200 Hildesheim Rundfunkempfangsgeraet
CA1190289A (en) * 1981-04-28 1985-07-09 Nippon Hoso Kyokai Fm signal demodulation system
US4388731A (en) * 1981-07-01 1983-06-14 Rockwell International Corporation Receiver with squelch for offset carrier environment
JPS6250029B1 (pt) 1981-08-31 1987-10-22 Oki Electric Ind Co Ltd
DE3137843A1 (de) * 1981-09-23 1983-03-31 Robert Bosch Gmbh, 7000 Stuttgart Filter- und demodulationsschaltung
US4406019A (en) * 1981-11-16 1983-09-20 The Bendix Corporation Selectivity means in amplitude modulated radio receivers
CA1196966A (en) * 1982-03-23 1985-11-19 Kouzou Kage Interference wave detection circuit for use in radio receiver
JPS59185433A (ja) * 1983-04-06 1984-10-22 Trio Kenwood Corp Ａｍ受信機
US4654884A (en) * 1984-05-10 1987-03-31 Alps Electric Co., Ltd. Radio receiver with switching circuit for elimination of intermodulation interference
JPS6172418A (ja) * 1984-09-17 1986-04-14 Alps Electric Co Ltd 衛星放送用受信機
DE3438286A1 (de) * 1984-10-16 1986-04-17 Hansen/Catito Elektronik, 1000 Berlin Verfahren und schaltungsanordnung zum umsetzen frequenzmodulierter signale ueber mindestens eine zwischenfrequenz in niederfrequenzsignale
JPH0746780B2 (ja) * 1985-01-31 1995-05-17 松下電器産業株式会社 ラジオ受信機
US4812851A (en) * 1985-10-31 1989-03-14 Digital Marine Electronics Corporation Radio receiver with automatic interference cancellation
US4761829A (en) * 1985-11-27 1988-08-02 Motorola Inc. Adaptive signal strength and/or ambient noise driven audio shaping system
DE3724604A1 (de) * 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals

Also Published As

Publication number Publication date
EP0417148A1 (de) 1991-03-20
MY105250A (en) 1994-09-30
BR8907460A (pt) 1991-04-02
DE3818752A1 (de) 1989-12-07
AU3692089A (en) 1990-01-05
PT90679B (pt) 1995-03-31
FI905850A0 (fi) 1990-11-28
DE58906783D1 (de) 1994-03-03
WO1989012357A1 (en) 1989-12-14
ATE100650T1 (de) 1994-02-15
EP0417148B1 (de) 1994-01-19
US5251332A (en) 1993-10-05
AU635206B2 (en) 1993-03-18
JPH03504672A (ja) 1991-10-09

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19940909

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19970331