DK234086D0 - Fm stereophonic broadcasting system utilizing companding of difference signal and having adaptive expander - Google Patents

Fm stereophonic broadcasting system utilizing companding of difference signal and having adaptive expander

Info

Publication number
DK234086D0
DK234086D0 DK234086A DK234086A DK234086D0 DK 234086 D0 DK234086 D0 DK 234086D0 DK 234086 A DK234086 A DK 234086A DK 234086 A DK234086 A DK 234086A DK 234086 D0 DK234086 D0 DK 234086D0
Authority
DK
Denmark
Prior art keywords
difference signal
signal
usual
difference
companding
Prior art date
Application number
DK234086A
Other languages
English (en)
Other versions
DK164681B (da
DK234086A (da
DK164681C (da
Inventor
Aldo G Cugnini
Daniel W Gravereaux
David W Stebbings
Original Assignee
Cbs Inc
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 Cbs Inc filed Critical Cbs Inc
Publication of DK234086D0 publication Critical patent/DK234086D0/da
Publication of DK234086A publication Critical patent/DK234086A/da
Publication of DK164681B publication Critical patent/DK164681B/da
Application granted granted Critical
Publication of DK164681C publication Critical patent/DK164681C/da

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)
DK234086A 1985-01-04 1986-05-20 Fm stereoradiospredningssystem og -modtager, hvor differenssignalet compandes DK164681C (da)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US68894085 1985-01-04
US06/688,940 US4602380A (en) 1985-01-04 1985-01-04 Compatible transmission techniques for FM stereophonic radio and television
US68885485 1985-01-04
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
US8502479 1985-12-13

Publications (4)

Publication Number Publication Date
DK234086D0 true DK234086D0 (da) 1986-05-20
DK234086A DK234086A (da) 1986-09-03
DK164681B DK164681B (da) 1992-07-27
DK164681C DK164681C (da) 1992-12-14

Family

ID=27104294

Family Applications (1)

Application Number Title Priority Date Filing Date
DK234086A DK164681C (da) 1985-01-04 1986-05-20 Fm stereoradiospredningssystem og -modtager, hvor differenssignalet compandes

Country Status (9)

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

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
NO862139L (no) 1986-11-04
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
DE3579460D1 (de) 1990-10-04

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