DE3231123C2 - - Google Patents

Info

Publication number
DE3231123C2
DE3231123C2 DE3231123A DE3231123A DE3231123C2 DE 3231123 C2 DE3231123 C2 DE 3231123C2 DE 3231123 A DE3231123 A DE 3231123A DE 3231123 A DE3231123 A DE 3231123A DE 3231123 C2 DE3231123 C2 DE 3231123C2
Authority
DE
Germany
Prior art keywords
signal
stereo
pilot
signals
pilot signal
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
DE3231123A
Other languages
German (de)
English (en)
Other versions
DE3231123A1 (de
Inventor
Leonard Richard New York N.Y. Us Kahn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of DE3231123A1 publication Critical patent/DE3231123A1/de
Application granted granted Critical
Publication of DE3231123C2 publication Critical patent/DE3231123C2/de
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
DE19823231123 1981-08-31 1982-08-21 Empfaenger fuer stereofone rundfunksignale Granted DE3231123A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/298,230 US4426728A (en) 1981-08-31 1981-08-31 Multiple system AM stereo receiver and pilot signal detector

Publications (2)

Publication Number Publication Date
DE3231123A1 DE3231123A1 (de) 1983-03-10
DE3231123C2 true DE3231123C2 (US07655688-20100202-C00086.png) 1992-06-11

Family

ID=23149612

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823231123 Granted DE3231123A1 (de) 1981-08-31 1982-08-21 Empfaenger fuer stereofone rundfunksignale

Country Status (13)

Country Link
US (1) US4426728A (US07655688-20100202-C00086.png)
JP (1) JPS5846739A (US07655688-20100202-C00086.png)
AU (1) AU545881B2 (US07655688-20100202-C00086.png)
BR (1) BR8205035A (US07655688-20100202-C00086.png)
CA (1) CA1167110A (US07655688-20100202-C00086.png)
DE (1) DE3231123A1 (US07655688-20100202-C00086.png)
FR (1) FR2512295B1 (US07655688-20100202-C00086.png)
GB (1) GB2105558B (US07655688-20100202-C00086.png)
IT (1) IT1156503B (US07655688-20100202-C00086.png)
MX (1) MX158304A (US07655688-20100202-C00086.png)
NL (1) NL191044C (US07655688-20100202-C00086.png)
NZ (1) NZ201177A (US07655688-20100202-C00086.png)
ZA (1) ZA825535B (US07655688-20100202-C00086.png)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58206250A (ja) * 1982-05-27 1983-12-01 Sony Corp Ａｍステレオ受信機
JPS59140739A (ja) * 1983-01-31 1984-08-13 Sony Corp Ａｍステレオ受信機のパイロット信号検出回路
JPS60213143A (ja) * 1984-04-06 1985-10-25 Clarion Co Ltd Ａｍステレオ方式自動判定回路
JPS6159932A (ja) * 1984-08-31 1986-03-27 Fujitsu Ten Ltd 振幅変調ステレオ放送方式識別装置
JPS6162248A (ja) * 1984-09-04 1986-03-31 Fujitsu Ten Ltd 振幅変調ステレオ放送方式識別装置
JPS6163122A (ja) * 1984-09-05 1986-04-01 Fujitsu Ten Ltd 振幅変調ステレオ放送方式識別装置
KR900005891B1 (ko) * 1985-02-12 1990-08-13 산요덴기 가부시기가이샤 Am스테레오 수신기
US4641341A (en) * 1985-08-28 1987-02-03 Kahn Leonard R Automatic multi-system AM stereo receiver using existing single-system AM stereo decoder IC
US4653095A (en) * 1986-02-06 1987-03-24 Kahn Leonard R AM stereo receivers having platform motion protection
US4887297A (en) * 1986-12-01 1989-12-12 Hazeltine Corporation Apparatus for processing stereo signals and universal AM stereo receivers incorporating such apparatus
DE3786922T2 (de) * 1987-12-04 1994-02-24 Hazeltine Corp Vorrichtung zur Verarbeitung von Stereosignalen und universale AM-Stereoempfänger mit einer solchen Einrichtung.
JPH0392598U (US07655688-20100202-C00086.png) * 1990-01-09 1991-09-20
CA2100447A1 (en) * 1991-02-06 1992-08-07 Lawrence Marvin Ecklund Am-fm combined stereo receiver
US5239699A (en) * 1991-02-06 1993-08-24 Motorola, Inc. Am-fm combined stereo receiver
AU5154093A (en) * 1992-10-13 1994-05-09 Gilbarco Inc. Apparatus and method for encoding/recovering multimedia control signals in an audio/video program
DE4340012B4 (de) * 1993-11-24 2004-04-22 Blaupunkt-Werke Gmbh Demodulator
US5784466A (en) * 1997-01-16 1998-07-21 Ford Motor Company Co-channel interference detector
US6078896A (en) * 1997-11-05 2000-06-20 Marconi Commerce Systems Inc. Video identification for forecourt advertising
JP3645208B2 (ja) * 2001-10-24 2005-05-11 日本放送協会 中波ステレオ放送受信回路

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521752A (en) 1948-01-19 1950-09-12 Gen Motors Corp Radio station selector
US3218393A (en) * 1960-02-11 1965-11-16 Leonard R Kahn Compatible stereophonic transmission and reception systems, and methods and components characterizing same
US3555435A (en) 1968-11-21 1971-01-12 Robert E Vosteen Multifrequency signal detector
JPS4822644B1 (US07655688-20100202-C00086.png) * 1969-09-13 1973-07-07
US3798376A (en) * 1969-12-29 1974-03-19 Rca Corp Multiplex decoding system
US3908090A (en) * 1972-05-10 1975-09-23 Leonard R Kahn Compatible AM stereophonic transmission system
CA997278A (en) * 1972-05-30 1976-09-21 Keiichiro Ogura Discrete 4-channel stereo recording and/or reproducing system
US4109197A (en) 1973-03-15 1978-08-22 Westinghouse Electric Corp. Prf detection system and method
DE2313793A1 (de) * 1973-03-20 1974-09-26 Braun Ag Selektion von dekodierungsanordnungen
DE2408947C3 (de) 1974-02-25 1979-02-22 Blaupunkt-Werke Gmbh, 3200 Hildesheim Schaltungsanordnung zur Frequenzerkennung auf dem Gebiet des Verkehrsfunkempfangs
US4018994A (en) * 1974-07-10 1977-04-19 Kahn Leonard R Compatible AM stereophonic receivers
JPS5113208U (US07655688-20100202-C00086.png) * 1974-07-17 1976-01-30
US4109239A (en) 1975-09-30 1978-08-22 Scientific-Atlanta, Inc. Radio frequency alarm system including transmitting, coding and decoding circuitry
US4232189A (en) * 1977-08-31 1980-11-04 Harris Corporation AM Stereo receivers
US4199761A (en) 1978-08-02 1980-04-22 Westinghouse Electric Corp. Multichannel radio communication system for automated power line distribution networks
JPS5830793B2 (ja) 1978-10-04 1983-07-01 株式会社日立製作所 多周波信号受信方式
US4227255A (en) 1979-04-11 1980-10-07 Telcom, Inc. Signal classifier
US4344038A (en) 1980-05-27 1982-08-10 The Magnavox Company Low frequency tone detector

Also Published As

Publication number Publication date
NL8203292A (nl) 1983-03-16
CA1167110A (en) 1984-05-08
IT1156503B (it) 1987-02-04
JPS6243627B2 (US07655688-20100202-C00086.png) 1987-09-16
GB2105558B (en) 1985-07-31
IT8268059A0 (it) 1982-08-31
US4426728A (en) 1984-01-17
DE3231123A1 (de) 1983-03-10
ZA825535B (en) 1983-07-27
NL191044C (nl) 1994-12-16
MX158304A (es) 1989-01-20
JPS5846739A (ja) 1983-03-18
AU8578582A (en) 1983-03-10
FR2512295B1 (fr) 1987-02-13
GB2105558A (en) 1983-03-23
FR2512295A1 (fr) 1983-03-04
NZ201177A (en) 1985-08-16
NL191044B (nl) 1994-07-18
AU545881B2 (en) 1985-08-01
BR8205035A (pt) 1983-08-09

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee