NL174312C - Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling. - Google Patents

Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling.

Info

Publication number
NL174312C
NL174312C NLAANVRAGE7805292,A NL7805292A NL174312C NL 174312 C NL174312 C NL 174312C NL 7805292 A NL7805292 A NL 7805292A NL 174312 C NL174312 C NL 174312C
Authority
NL
Netherlands
Prior art keywords
phase lock
stereo decoder
oscillation phase
improved oscillation
19khz pilot
Prior art date
Application number
NLAANVRAGE7805292,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7805292A (nl
NL174312B (nl
Inventor
Albert Jan Ir Stienstra
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NLAANVRAGE7805292,A priority Critical patent/NL174312C/xx
Priority to US06/036,470 priority patent/US4249038A/en
Priority to AU47008/79A priority patent/AU525875B2/en
Priority to DE2919296A priority patent/DE2919296C2/de
Priority to ES480533A priority patent/ES480533A1/es
Priority to GB7916638A priority patent/GB2021361B/en
Priority to JP5902379A priority patent/JPS54150001A/ja
Priority to SE7904181A priority patent/SE432040B/sv
Priority to IT22674/79A priority patent/IT1113992B/it
Priority to FR7912483A priority patent/FR2426368A1/fr
Publication of NL7805292A publication Critical patent/NL7805292A/xx
Priority to HK541/83A priority patent/HK54183A/xx
Publication of NL174312B publication Critical patent/NL174312B/xx
Application granted granted Critical
Publication of NL174312C publication Critical patent/NL174312C/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
    • H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
NLAANVRAGE7805292,A 1978-05-17 1978-05-17 Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling. NL174312C (nl)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NLAANVRAGE7805292,A NL174312C (nl) 1978-05-17 1978-05-17 Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling.
US06/036,470 US4249038A (en) 1978-05-17 1979-05-07 Stereo decoder with 19KHz-pilot suppression and improved oscillator phase locking
AU47008/79A AU525875B2 (en) 1978-05-17 1979-05-11 Stereo decoder with 19khz-pilot suppression and improving osciallation phase locking
DE2919296A DE2919296C2 (de) 1978-05-17 1979-05-12 Stereodecoder mit 19 kHz-Pilotunterdrückung und verbesserter Phasenverriegelung des Hilfsträger- Oszillators
GB7916638A GB2021361B (en) 1978-05-17 1979-05-14 Decoder for multiplex stereo signals
JP5902379A JPS54150001A (en) 1978-05-17 1979-05-14 Stereoodecoder
ES480533A ES480533A1 (es) 1978-05-17 1979-05-14 Un descodificador estereo perfeccionado.
SE7904181A SE432040B (sv) 1978-05-17 1979-05-14 Stereodekoder for multiplexa signaler
IT22674/79A IT1113992B (it) 1978-05-17 1979-05-14 Decodificatore stereo con soppressione del segnale pilota a 19khz e miglioramento delle condizioni di aggancio di fase delle oscillazioni
FR7912483A FR2426368A1 (fr) 1978-05-17 1979-05-16 Decodeur stereo avec suppression du ton pilote a 19 khz et oscillateur a synchronisation de phase amelioree
HK541/83A HK54183A (en) 1978-05-17 1983-11-10 Decorder for multiplex stereo signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7805292,A NL174312C (nl) 1978-05-17 1978-05-17 Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling.

Publications (3)

Publication Number Publication Date
NL7805292A NL7805292A (nl) 1979-11-20
NL174312B NL174312B (nl) 1983-12-16
NL174312C true NL174312C (nl) 1984-05-16

Family

ID=19830845

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7805292,A NL174312C (nl) 1978-05-17 1978-05-17 Stereodecoder met 19khz-piloot onderdrukking en verbeterende oscillatie-fase-vergrendeling.

Country Status (11)

Country Link
US (1) US4249038A (xx)
JP (1) JPS54150001A (xx)
AU (1) AU525875B2 (xx)
DE (1) DE2919296C2 (xx)
ES (1) ES480533A1 (xx)
FR (1) FR2426368A1 (xx)
GB (1) GB2021361B (xx)
HK (1) HK54183A (xx)
IT (1) IT1113992B (xx)
NL (1) NL174312C (xx)
SE (1) SE432040B (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344038A (en) * 1980-05-27 1982-08-10 The Magnavox Company Low frequency tone detector
DE3446078A1 (de) * 1984-12-18 1986-06-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Fm-stereoempfaenger
US4972482A (en) * 1987-09-18 1990-11-20 Sanyo Electric Co., Ltd. Fm stereo demodulator
JPH01160976U (xx) * 1988-04-28 1989-11-08
KR960014217B1 (ko) * 1993-01-21 1996-10-14 삼성전자 주식회사 스테레오와 듀얼 음성 인식 회로
FR3088787B1 (fr) 2018-11-21 2020-11-13 Continental Automotive France Procédé de démodulation d’un signal stéréophonique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964712A (en) * 1959-09-29 1960-12-13 Gulf Research Development Co Automatically tuned notch filter
US3133993A (en) * 1960-04-18 1964-05-19 Zenith Radio Corp Stereo fm transmission system
DE2006397A1 (de) * 1969-02-18 1970-10-15 PGH Tonfunk, Ermsleben Patentwesen Ost-Berlin WPl37937 Schaltungsanordnung zur Abtrennung eines schmalen Frequenzbandes aus einem breiteren Frequenzband, insbesondere zur Abtrennung der Pilotfrequenz aus dem Multiplexsignal in Stereo-Decodern
CA997000A (en) * 1969-12-29 1976-09-14 Allen L. Limberg Multiplex decoding system
JPS52119852A (en) * 1976-04-01 1977-10-07 Sony Corp Pll
US4160217A (en) * 1976-04-01 1979-07-03 Sony Corporation Phase locked loop circuit
JPS52127103A (en) * 1976-04-19 1977-10-25 Pioneer Electronic Corp Circuit for generating pilot cancel signal in mpx demodulator
JPS5335302A (en) * 1976-09-13 1978-04-01 Hitachi Ltd Cancel circuit for mpx decoder pilot signal
JPS5377102A (en) * 1976-12-20 1978-07-08 Nippon Gakki Seizo Kk Fm stereo demodulating circuit

Also Published As

Publication number Publication date
GB2021361B (en) 1982-04-07
FR2426368A1 (fr) 1979-12-14
GB2021361A (en) 1979-11-28
JPS54150001A (en) 1979-11-24
DE2919296A1 (de) 1979-11-22
FR2426368B1 (xx) 1985-02-15
IT7922674A0 (it) 1979-05-14
HK54183A (en) 1983-11-18
DE2919296C2 (de) 1983-06-01
IT1113992B (it) 1986-01-27
NL7805292A (nl) 1979-11-20
ES480533A1 (es) 1979-12-16
AU525875B2 (en) 1982-12-02
SE432040B (sv) 1984-03-12
US4249038A (en) 1981-02-03
AU4700879A (en) 1979-11-22
NL174312B (nl) 1983-12-16
SE7904181L (sv) 1979-11-18
JPS6227580B2 (xx) 1987-06-16

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee