FR2382808A1 - Faisceau hertzien pour exploitation a bande laterale unique - Google Patents

Faisceau hertzien pour exploitation a bande laterale unique

Info

Publication number
FR2382808A1
FR2382808A1 FR7806212A FR7806212A FR2382808A1 FR 2382808 A1 FR2382808 A1 FR 2382808A1 FR 7806212 A FR7806212 A FR 7806212A FR 7806212 A FR7806212 A FR 7806212A FR 2382808 A1 FR2382808 A1 FR 2382808A1
Authority
FR
France
Prior art keywords
radio
frequency
harness
band
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
FR7806212A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 to DE19772709232 priority Critical patent/DE2709232A1/de
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2382808A1 publication Critical patent/FR2382808A1/fr
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/01Reducing phase shift
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/68Details 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 for wholly or partially suppressing the carrier or one side band

Abstract

Faisceau hertzien pour la transmission au niveau de la fréquence intermédiaire d'un signal à bande latérale unique, modulé par des signaux à la fréquence porteuse. Deux ondes pilotes au moins (telles que 4/5 fo, fo, 6/5 fo sont affectées au signal à fréquence intermédiaire contenant la bande de base Bb. Un critère de syntonisation de l'oscillateur mélangeur du récepteur est dérivé de l'intervalle de fréquence des ondes pilotes et du décalage de fréquence produit par la transmission dans le champ radioélectrique.
FR7806212A 1977-03-03 1978-03-03 Faisceau hertzien pour exploitation a bande laterale unique Pending FR2382808A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772709232 DE2709232A1 (de) 1977-03-03 1977-03-03 Richtfunksystem fuer einseitenbandbetrieb

Publications (1)

Publication Number Publication Date
FR2382808A1 true FR2382808A1 (fr) 1978-09-29

Family

ID=6002689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806212A Pending FR2382808A1 (fr) 1977-03-03 1978-03-03 Faisceau hertzien pour exploitation a bande laterale unique

Country Status (6)

Country Link
US (1) US4209748A (fr)
JP (1) JPS53110312A (fr)
DE (1) DE2709232A1 (fr)
FR (1) FR2382808A1 (fr)
GB (1) GB1595673A (fr)
IT (1) IT1093348B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482339A1 (fr) * 1980-05-07 1981-11-13 Veyres Camille Systeme de transmission radioelectrique blu utilisant deux frequences pilotes pour l'asservissement d'oscillateurs locaux

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497360B1 (fr) * 1980-12-31 1984-09-21 Schlumberger Prospection
US4912773A (en) * 1982-09-21 1990-03-27 General Electric Company Communications system utilizing a pilot signal and a modulated signal
US4554679A (en) * 1983-11-15 1985-11-19 Rca Corporation Noise reduction system for a single sideband multiplex signal
US4618996A (en) * 1984-04-24 1986-10-21 Avnet, Inc. Dual pilot phase lock loop for radio frequency transmission
US5177604A (en) * 1986-05-14 1993-01-05 Radio Telcom & Technology, Inc. Interactive television and data transmission system
US5617148A (en) * 1991-06-14 1997-04-01 Wavephore, Inc. Filter by-pass for transmitting an additional signal with a video signal
US5559559A (en) * 1991-06-14 1996-09-24 Wavephore, Inc. Transmitting a secondary signal with dynamic injection level control
US5831679A (en) * 1991-06-14 1998-11-03 Wavephore, Inc. Network for retrieval and video transmission of information
US5410360A (en) * 1991-06-14 1995-04-25 Wavephore, Inc. Timing control for injecting a burst and data into a video signal
US5327237A (en) * 1991-06-14 1994-07-05 Wavephore, Inc. Transmitting data with video
US5387941A (en) * 1991-06-14 1995-02-07 Wavephore, Inc. Data with video transmitter
EP3195544A1 (fr) * 2014-09-18 2017-07-26 Telefonaktiebolaget LM Ericsson (publ) Estimation de fréquence

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB480847A (en) * 1936-07-20 1938-03-01 Telefunken Gmbh Improvements in or relating to suppressed carrier wave signalling systems
AT154551B (de) * 1936-07-20 1938-10-10 Aeg Verfahren zur Synchronisierung der an beliebiger Stelle zugesetzten Trägerschwingung bei Sendungen mit unterdrückter Trägerfrequenz.
FR920008A (fr) * 1943-10-21 1947-03-25 Philips Nv émetteur et récepteur de signaux de bande unilatérale
US3068416A (en) * 1957-02-07 1962-12-11 Sperry Rand Corp Communication system
US3088070A (en) * 1959-05-13 1963-04-30 Aeronautical Radio Inc Frequency correcting communication system and method
DE1196256B (de) * 1961-09-07 1965-07-08 Fuji Tsushinki Seizo Kabushiki Richtfunksystem mit Einseitenbandmodulation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB480847A (en) * 1936-07-20 1938-03-01 Telefunken Gmbh Improvements in or relating to suppressed carrier wave signalling systems
AT154551B (de) * 1936-07-20 1938-10-10 Aeg Verfahren zur Synchronisierung der an beliebiger Stelle zugesetzten Trägerschwingung bei Sendungen mit unterdrückter Trägerfrequenz.
FR920008A (fr) * 1943-10-21 1947-03-25 Philips Nv émetteur et récepteur de signaux de bande unilatérale
US2530614A (en) * 1943-10-21 1950-11-21 Hartford Nat Bank & Trust Co Transmitter and receiver for single-sideband signals
US3068416A (en) * 1957-02-07 1962-12-11 Sperry Rand Corp Communication system
US3088070A (en) * 1959-05-13 1963-04-30 Aeronautical Radio Inc Frequency correcting communication system and method
DE1196256B (de) * 1961-09-07 1965-07-08 Fuji Tsushinki Seizo Kabushiki Richtfunksystem mit Einseitenbandmodulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482339A1 (fr) * 1980-05-07 1981-11-13 Veyres Camille Systeme de transmission radioelectrique blu utilisant deux frequences pilotes pour l'asservissement d'oscillateurs locaux

Also Published As

Publication number Publication date
US4209748A (en) 1980-06-24
IT1093348B (it) 1985-07-19
DE2709232A1 (de) 1978-09-07
GB1595673A (en) 1981-08-12
IT7820886D0 (it) 1978-03-03
JPS53110312A (en) 1978-09-27

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name