FR2402352A1 - Recepteur stereophonique - Google Patents

Recepteur stereophonique

Info

Publication number
FR2402352A1
FR2402352A1 FR7825053A FR7825053A FR2402352A1 FR 2402352 A1 FR2402352 A1 FR 2402352A1 FR 7825053 A FR7825053 A FR 7825053A FR 7825053 A FR7825053 A FR 7825053A FR 2402352 A1 FR2402352 A1 FR 2402352A1
Authority
FR
France
Prior art keywords
stereophonic
reception
demodulator
stage
broadcasts
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.)
Withdrawn
Application number
FR7825053A
Other languages
English (en)
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.)
Harris Corp
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Publication of FR2402352A1 publication Critical patent/FR2402352A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
    • H04H20/49—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for AM stereophonic broadcast systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

L'invention concerne la réception d'émissions en stérophonie. Un récepteur stéréophonique, destiné à recevoir des émissions stéréophoniques en modulation d'amplitude, transmises selon les techniques de modulation en quadrature, pure ou modifiée, comprend essentiellement un étage HF accordé 12, un générateur de signaux de référence 14, et un démodulateur stéréophonique 16. A partir des signaux de l'étage 12 et du générateur 14, le démodulateur 16 effectue une détection synchrone des composantes respectives du signal stéréophonique composite. Application à la réception d'émissions stéréophoniques en modulation d'amplitude.
FR7825053A 1977-08-31 1978-08-30 Recepteur stereophonique Withdrawn FR2402352A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/829,518 US4232189A (en) 1977-08-31 1977-08-31 AM Stereo receivers

Publications (1)

Publication Number Publication Date
FR2402352A1 true FR2402352A1 (fr) 1979-03-30

Family

ID=25254762

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825053A Withdrawn FR2402352A1 (fr) 1977-08-31 1978-08-30 Recepteur stereophonique

Country Status (4)

Country Link
US (1) US4232189A (fr)
JP (1) JPS5452903A (fr)
DE (1) DE2837198A1 (fr)
FR (1) FR2402352A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426728A (en) * 1981-08-31 1984-01-17 Kahn Leonard R Multiple system AM stereo receiver and pilot signal detector
JPS6184933A (ja) * 1984-10-03 1986-04-30 Pioneer Electronic Corp Ａｍステレオ復調装置
DE3505950A1 (de) * 1985-02-21 1986-08-21 Deutsche Itt Industries Gmbh, 7800 Freiburg Integrierbare schaltungsanordnung zur identifizierung eines pilottones
US4777658A (en) * 1986-10-21 1988-10-11 The United States Of America As Represented By The United States National Aeronautics & Space Administration Emergency locating transmitter and receiver system
US5097230A (en) * 1990-05-24 1992-03-17 Emhiser Research Limited Phase locked loop that includes D. C. modulation
US5802462A (en) * 1990-05-24 1998-09-01 Emhiser Research Limited FM-PM receivers with frequency deviation compression
US5222144A (en) * 1991-10-28 1993-06-22 Ford Motor Company Digital quadrature radio receiver with two-step processing
US6671494B1 (en) * 1998-06-18 2003-12-30 Competive Technologies, Inc. Small, battery operated RF transmitter for portable audio devices for use with headphones with RF receiver

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031529A (en) * 1958-07-21 1962-04-24 Philco Corp Phase-frequency control system for carrier-multiplex receiver
US3043914A (en) * 1958-10-20 1962-07-10 Philco Corp Single channel stereophonic system
US3109896A (en) * 1958-10-22 1963-11-05 Philco Corp Radio receiver means employing separable complementary units
US3059189A (en) * 1960-02-04 1962-10-16 Rca Corp Stereophonic detecting and matrixing circuit
US3311833A (en) * 1963-04-11 1967-03-28 Wilcox Electric Company Inc Method and apparatus for increasing the readability of amplitude modulated waves
US3944749A (en) * 1972-05-10 1976-03-16 Kahn Leonard R Compatible AM stereophonic receivers involving sideband separation at IF frequency
US4018994A (en) * 1974-07-10 1977-04-19 Kahn Leonard R Compatible AM stereophonic receivers
JPS51114058A (en) * 1975-04-01 1976-10-07 Nippon Gakki Seizo Kk Pll system

Also Published As

Publication number Publication date
JPS5452903A (en) 1979-04-25
US4232189A (en) 1980-11-04
DE2837198A1 (de) 1979-03-08

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Legal Events

Date Code Title Description
ST Notification of lapse