CH337242A - Schaltungsanordnung zur Frequenzdemodulation - Google Patents

Schaltungsanordnung zur Frequenzdemodulation

Info

Publication number: CH337242A
Authority: CH; Switzerland
Prior art keywords: circuit arrangement; frequency demodulation; demodulation; frequency; arrangement
Prior art date: 1953-10-21

Application number

Other languages

English (en)

Inventor

Hubertus Janssen Pete Johannes

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.)

1953-10-21

Filing date

1955-12-09

Publication date

1959-03-31

1955-12-09 Application filed by Philips Nv filed Critical Philips Nv

1959-03-31 Publication of CH337242A publication Critical patent/CH337242A/de

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Filters And Equalizers (AREA)
Amplifiers (AREA)
Plasma Technology (AREA)
Electrostatic Charge, Transfer And Separation In Electrography (AREA)

CH337242D 1953-10-21 1955-12-09 Schaltungsanordnung zur Frequenzdemodulation CH337242A (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL322503X		1953-10-21
NL193145		1954-12-11

Publications (1)

Publication Number	Publication Date
CH337242A true CH337242A (de)	1959-03-31

Family

ID=26641590

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
CH322503D CH322503A (de)	1953-10-21	1954-10-19	Schaltungsanordnung zum Frequenzdemodulieren
CH337242D CH337242A (de)	1953-10-21	1955-12-09	Schaltungsanordnung zur Frequenzdemodulation

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
CH322503D CH322503A (de)	1953-10-21	1954-10-19	Schaltungsanordnung zum Frequenzdemodulieren

Country Status (7)

Country	Link
US (2)	US2904675A (de)
BE (2)	BE543501A (de)
CH (2)	CH322503A (de)
DE (2)	DE940174C (de)
FR (2)	FR1110195A (de)
GB (2)	GB758802A (de)
NL (2)	NL102009C (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2943263A (en) *	1957-08-20	1960-06-28	Hazeltine Research Inc	Phase detector
US3063019A (en) *	1958-10-06	1962-11-06	Tno	Circuit for the demodulation of frequency modulated signals
DE1090277B (de) *	1958-12-08	1960-10-06	Telefunken Gmbh	Schaltungsanordnung zur Begrenzung der Spannungsamplitude von Hochfrequenzschwingungen an einem Schwingungskreis
US3256489A (en) *	1963-01-11	1966-06-14	Rca Corp	Amplitude dependent zero shift reduction for frequency discriminators
DE1302309B (de) *	1964-08-20	1970-10-15
GB1126030A (en) *	1966-10-07	1968-09-05	Telefunken Patent	Improvements in or relating to frequency demodulators
US3621409A (en) *	1969-10-27	1971-11-16	Matsushita Electric Ind Co Ltd	Frequency discriminator circuit having a narrow detection band

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL79628B (de) *	1935-10-17
US2251382A (en) *	1940-06-04	1941-08-05	Rca Corp	Frequency modulated wave receiver
US2285957A (en) *	1941-03-29	1942-06-09	Hazeltine Corp	Balanced frequency detector
US2353468A (en) *	1942-05-22	1944-07-11	Rca Corp	Frequency modulation receiver circuit
BE477489A (de) *	1942-06-29
US2420248A (en) *	1944-07-19	1947-05-06	Rca Corp	Amplitude limiter circuit
US2477391A (en) *	1944-11-24	1949-07-26	Avco Mfg Corp	Radio receiving system
US2478023A (en) *	1946-03-22	1949-08-02	Gen Electric	Frequency monitoring system
US2539637A (en) *	1946-04-30	1951-01-30	Rca Corp	Frequency modulation receiver
US2524556A (en) *	1946-09-20	1950-10-03	Gen Electric	Amplitude limiter
US2561059A (en) *	1947-02-27	1951-07-17	Rca Corp	Signal amplitude controlling transformer loading circuit
DE809672C (de) *	1948-12-02	1951-08-02	Philips Nv	Schaltung zur Demodulation einer frequenzmodulierten Schwingung
FR1020433A (fr) *	1950-06-16	1953-02-06	Thomson Houston Comp Francaise	Perfectionnement aux circuits détecteurs d'ondes modulées en fréquence

0
- NL NL99524D patent/NL99524C/xx active
- BE BE532653D patent/BE532653A/xx unknown
- NL NL102009D patent/NL102009C/xx active
- BE BE543501D patent/BE543501A/xx unknown
1954
- 1954-10-18 GB GB29998/54A patent/GB758802A/en not_active Expired
- 1954-10-19 FR FR1110195D patent/FR1110195A/fr not_active Expired
- 1954-10-19 DE DEN9610A patent/DE940174C/de not_active Expired
- 1954-10-19 CH CH322503D patent/CH322503A/de unknown
- 1954-10-20 US US463508A patent/US2904675A/en not_active Expired - Lifetime
1955
- 1955-11-21 US US548201A patent/US2873365A/en not_active Expired - Lifetime
- 1955-12-07 DE DEN11553A patent/DE1007387B/de active Pending
- 1955-12-08 GB GB35263/55A patent/GB795561A/en not_active Expired
- 1955-12-09 FR FR68385D patent/FR68385E/fr not_active Expired
- 1955-12-09 CH CH337242D patent/CH337242A/de unknown

Also Published As

Publication number	Publication date
US2904675A (en)	1959-09-15
FR68385E (fr)	1958-04-29
GB758802A (en)	1956-10-10
GB795561A (en)	1958-05-28
NL102009C (de)
FR1110195A (fr)	1956-02-07
BE543501A (de)
US2873365A (en)	1959-02-10
DE1007387B (de)	1957-05-02
BE532653A (de)
DE940174C (de)	1956-03-15
CH322503A (de)	1957-06-15
NL99524C (de)

Publication	Publication Date	Title
CH339364A (de)	1959-06-30	Bauteil
CH325506A (de)	1957-11-15	Hochfrequenzanlage zur Entfernungsbestimmung
FR1131189A (fr)	1957-02-18	Oscillateur
FR1114488A (fr)	1956-04-12	Circuits électriques
FR1104843A (fr)	1955-11-24	Disjoncteur
CH337242A (de)	1959-03-31	Schaltungsanordnung zur Frequenzdemodulation
FR1111164A (fr)	1956-02-23	Circuit démodulateur perfectionné
FR1104301A (fr)	1955-11-18	Circuit oscillateur commandé
FR1112084A (fr)	1956-03-08	Disjoncteur
CH324054A (fr)	1957-08-31	Disjoncteur
CH325324A (de)	1957-10-31	Schaltungsanordnung zur Frequenzmodulation
FR1118089A (fr)	1956-05-31	Interrupteur de circuit
FR1112850A (fr)	1956-03-19	Circuit discriminateur de fréquence
FR1113341A (fr)	1956-03-28	Disjoncteur
CH325638A (de)	1957-11-15	Leistungsschalter
FR1114389A (fr)	1956-04-11	Discriminateur de fréquence
CH323185A (de)	1957-07-15	Einrichtung zur Trägerfrequenztelegraphie
FR1107365A (fr)	1955-12-30	Circuits de changement de fréquence
AT185853B (de)	1956-06-11	Schaltungsanordnung zur Identifizierung von Leitungen
CH332678A (de)	1958-09-15	Hochfrequenzgabelschaltung
FR1092789A (fr)	1955-04-27	Changeur de fréquence
AT186673B (de)	1956-09-10	Trägerfrequenztelegraphie-Einrichtung
FR1103375A (fr)	1955-11-02	Radiorécepteur
FR1103962A (fr)	1955-11-15	Modulateur de fréquence équilibré
FR1092183A (fr)	1955-04-19	Disjoncteur