NO862139L - Stereofonisk fm-kringkastingssystem som utnytter kompandering av differansesignal og har adaptiv ekspander. - Google Patents

Stereofonisk fm-kringkastingssystem som utnytter kompandering av differansesignal og har adaptiv ekspander.

Info

Publication number
NO862139L
NO862139L NO862139A NO862139A NO862139L NO 862139 L NO862139 L NO 862139L NO 862139 A NO862139 A NO 862139A NO 862139 A NO862139 A NO 862139A NO 862139 L NO862139 L NO 862139L
Authority
NO
Norway
Prior art keywords
difference signal
signal
usual
difference
adaptive
Prior art date
Application number
NO862139A
Other languages
English (en)
Other versions
NO169268B (no
NO169268C (no
Inventor
Aldo G Cugnini
Daniel W Gravereaux
David W Stebbings
Original Assignee
Broadcast Tech Partners
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
Priority claimed from US06/688,940 external-priority patent/US4602380A/en
Priority claimed from US06/688,854 external-priority patent/US4602381A/en
Application filed by Broadcast Tech Partners filed Critical Broadcast Tech Partners
Publication of NO862139L publication Critical patent/NO862139L/no
Publication of NO169268B publication Critical patent/NO169268B/no
Publication of NO169268C publication Critical patent/NO169268C/no

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
    • H04H20/48—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 FM 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
    • H04B1/1692—Circuits adapted for the reception of stereophonic signals using companding of the stereo difference signal, e.g. FMX

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Circuits Of Receivers In General (AREA)
NO862139A 1985-01-04 1986-05-29 Mottaker for bruk i et stereofonisk fm-kringkastingssystem som utnytter kompandering av differansesignal og har adaptiv ekspander NO169268C (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/688,940 US4602380A (en) 1985-01-04 1985-01-04 Compatible transmission techniques for FM stereophonic radio and television
US06/688,854 US4602381A (en) 1985-01-04 1985-01-04 Adaptive expanders for FM stereophonic broadcasting system utilizing companding of difference signal
PCT/US1985/002479 WO1986004201A1 (en) 1985-01-04 1985-12-13 Broadcast stereo companding system and apparatus

Publications (3)

Publication Number Publication Date
NO862139L true NO862139L (no) 1986-11-04
NO169268B NO169268B (no) 1992-02-17
NO169268C NO169268C (no) 1992-05-27

Family

ID=27104294

Family Applications (1)

Application Number Title Priority Date Filing Date
NO862139A NO169268C (no) 1985-01-04 1986-05-29 Mottaker for bruk i et stereofonisk fm-kringkastingssystem som utnytter kompandering av differansesignal og har adaptiv ekspander

Country Status (9)

Country Link
EP (1) EP0207964B1 (no)
KR (1) KR900006261B1 (no)
AT (1) ATE56114T1 (no)
AU (1) AU578792B2 (no)
BR (1) BR8507150A (no)
DE (1) DE3579460D1 (no)
DK (1) DK164681C (no)
NO (1) NO169268C (no)
WO (1) WO1986004201A1 (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852167A (en) * 1987-01-20 1989-07-25 Sanyo Electric Co., Ltd. FMX stereophonic receiver
TWI433137B (zh) 2009-09-10 2014-04-01 Dolby Int Ab 藉由使用參數立體聲改良調頻立體聲收音機之聲頻信號之設備與方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067292A (en) * 1958-02-03 1962-12-04 Jerry B Minter Stereophonic sound transmission and reproduction
US4376916A (en) * 1980-05-29 1983-03-15 Cbs Inc. Signal compression and expansion system
US4338491A (en) * 1980-06-04 1982-07-06 Motorola Inc. Compatible AM stereophonic system
US4534054A (en) * 1980-11-28 1985-08-06 Maisel Douglas A Signaling system for FM transmission systems
US4485483A (en) * 1983-03-18 1984-11-27 Torick Emil L FM Stereophonic system incorporating companding of difference signal

Also Published As

Publication number Publication date
NO169268B (no) 1992-02-17
DK164681B (da) 1992-07-27
EP0207964B1 (en) 1990-08-29
WO1986004201A1 (en) 1986-07-17
KR870700188A (ko) 1987-03-14
DK234086A (da) 1986-09-03
KR900006261B1 (ko) 1990-08-27
AU5306986A (en) 1986-07-29
EP0207964A1 (en) 1987-01-14
BR8507150A (pt) 1987-03-31
DK164681C (da) 1992-12-14
ATE56114T1 (de) 1990-09-15
EP0207964A4 (en) 1987-06-16
NO169268C (no) 1992-05-27
AU578792B2 (en) 1988-11-03
DK234086D0 (da) 1986-05-20
DE3579460D1 (de) 1990-10-04

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