HU177519B - Frequency synthetiser for generating pilot signals and subcarriers - Google Patents

Frequency synthetiser for generating pilot signals and subcarriers Download PDF

Info

Publication number
HU177519B
HU177519B HUTE000919A HU177519B HU 177519 B HU177519 B HU 177519B HU TE000919 A HUTE000919 A HU TE000919A HU 177519 B HU177519 B HU 177519B
Authority
HU
Hungary
Prior art keywords
khz
output
bandpass filter
auxiliary
signal
Prior art date
Application number
Other languages
German (de)
English (en)
Hungarian (hu)
Inventor
Gyula Boglar
Gyoergy Molnar
Original Assignee
Telefongyar
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 Telefongyar filed Critical Telefongyar
Priority to HUTE000919 priority Critical patent/HU177519B/hu
Priority to BG045446A priority patent/BG39300A3/xx
Priority to DE19792945987 priority patent/DE2945987C2/de
Priority to PL22032279A priority patent/PL125237B1/pl
Priority to GB7943489A priority patent/GB2039441B/en
Priority to RO7999610A priority patent/RO76970A/fr
Priority to DD21794379A priority patent/DD148131A5/de
Priority to FR7931284A priority patent/FR2445063A1/fr
Publication of HU177519B publication Critical patent/HU177519B/hu

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • H03B21/025—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency by repeated mixing in combination with division of frequency only

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transmitters (AREA)
  • Superheterodyne Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
HUTE000919 1978-12-22 1978-12-22 Frequency synthetiser for generating pilot signals and subcarriers HU177519B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
HUTE000919 HU177519B (en) 1978-12-22 1978-12-22 Frequency synthetiser for generating pilot signals and subcarriers
BG045446A BG39300A3 (en) 1978-12-22 1979-11-09 Frequency synthesizer for generating of control and carrying frequencies
DE19792945987 DE2945987C2 (de) 1978-12-22 1979-11-14 Frequenzsynthetisierer zur Erzeugung von Pilotsignalen und Hilfsträgern
PL22032279A PL125237B1 (en) 1978-12-22 1979-12-11 Frequency synthetizer for generating pilot signals and auxiliary carrier signals
GB7943489A GB2039441B (en) 1978-12-22 1979-12-18 Frequency synthesizer
RO7999610A RO76970A (fr) 1978-12-22 1979-12-19 Synthetiseur de frequence pour la realisation des signals-pilotis et des signals porteurs auxiliaires
DD21794379A DD148131A5 (de) 1978-12-22 1979-12-20 Frequenzsynthetisator zur erzeugung von pilotsignalen und hilfstraegern
FR7931284A FR2445063A1 (fr) 1978-12-22 1979-12-20 Synthetiseur de frequences pour engendrer des frequences porteuses et des frequences pilotes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUTE000919 HU177519B (en) 1978-12-22 1978-12-22 Frequency synthetiser for generating pilot signals and subcarriers

Publications (1)

Publication Number Publication Date
HU177519B true HU177519B (en) 1981-10-28

Family

ID=11002089

Family Applications (1)

Application Number Title Priority Date Filing Date
HUTE000919 HU177519B (en) 1978-12-22 1978-12-22 Frequency synthetiser for generating pilot signals and subcarriers

Country Status (8)

Country Link
BG (1) BG39300A3 (fr)
DD (1) DD148131A5 (fr)
DE (1) DE2945987C2 (fr)
FR (1) FR2445063A1 (fr)
GB (1) GB2039441B (fr)
HU (1) HU177519B (fr)
PL (1) PL125237B1 (fr)
RO (1) RO76970A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU191731B (en) * 1984-12-19 1987-04-28 Telefongyar Circuit arrangement for generating system carrier, line pilot and channel carrier-control frequencies of multichannel open cable telephon equipments
CA2021481A1 (fr) * 1989-07-20 1991-01-21 Luis A. Rovira Methode de multiplication a limitation de sous-porteuse preservant l'information am dans les systemes fm
DE19811550C2 (de) * 1998-03-18 2002-06-27 Bosch Gmbh Robert Verfahren und Schaltungsanordnung zur Erzeugung von Frequenzsignalen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD68253A (fr) *
GB780152A (en) * 1955-11-28 1957-07-31 Standard Telephones Cables Ltd Improvements in or relating to carrier wave generators
GB961028A (en) * 1960-01-14 1964-06-17 Plessey Co Ltd Improvements in frequency synthesis apparatus
DE1260546B (de) * 1964-08-26 1968-02-08 Siemens Ag Anordnung zur Erzeugung der Pilotfrequenzen bei Traegerfrequenzsystemen
DE1762627B2 (de) * 1968-07-23 1971-02-18 Verfahren zur ableitung der kanaltraegerfrequenz von 112 bis 156 khz fuer ein vormodulationstraegerfrequenzsystem
GB1337166A (en) * 1971-10-28 1973-11-14 Marconi Co Ltd Frequency generators

Also Published As

Publication number Publication date
RO76970A (fr) 1981-06-22
GB2039441A (en) 1980-08-06
PL220322A1 (fr) 1980-09-22
PL125237B1 (en) 1983-04-30
DE2945987A1 (de) 1980-06-26
DE2945987C2 (de) 1985-01-17
FR2445063B1 (fr) 1983-04-22
BG39300A3 (en) 1986-05-15
DD148131A5 (de) 1981-05-06
FR2445063A1 (fr) 1980-07-18
GB2039441B (en) 1983-03-23

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee