FR71464E - Circuits de réception radio en diversité pour ondes ultra courtes - Google Patents

Circuits de réception radio en diversité pour ondes ultra courtes

Info

Publication number
FR71464E
FR71464E FR71464DA FR71464E FR 71464 E FR71464 E FR 71464E FR 71464D A FR71464D A FR 71464DA FR 71464 E FR71464 E FR 71464E
Authority
FR
France
Prior art keywords
radio reception
reception circuits
diversity radio
shortwave
ultra
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.)
Expired
Application number
Other languages
English (en)
Inventor
Bent Bulow Jacobsen
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 GB10856/56A external-priority patent/GB797123A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR71464E publication Critical patent/FR71464E/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10Polarisation diversity; Directional diversity
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18Automatic scanning over a band of frequencies
    • H03J7/30Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/084Equal gain combining, only phase adjustments
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842Weighted combining
    • H04B7/0865Independent weighting, i.e. weights based on own antenna reception parameters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Toys (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Selective Calling Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
FR71464D 1953-04-22 1957-04-09 Circuits de réception radio en diversité pour ondes ultra courtes Expired FR71464E (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB328282X 1953-04-22
US787095XA 1954-09-20 1954-09-20
GB10856/56A GB797123A (en) 1953-04-22 1956-04-10 Radio diversity receiving system

Publications (1)

Publication Number Publication Date
FR71464E true FR71464E (fr) 1960-01-05

Family

ID=32329556

Family Applications (4)

Application Number Title Priority Date Filing Date
FR1104805D Expired FR1104805A (fr) 1953-04-22 1954-04-21 Circuits de réception radio en diversité pour ondes ultra-courtes
FR67714D Expired FR67714E (fr) 1953-04-22 1955-03-22 Circuits de réception radio en diversité pour ondes ultra-courtes
FR1138803D Expired FR1138803A (fr) 1953-04-22 1955-09-20 Dispositif d'accord perfectionné pour appareils récepteurs de radiophonie
FR71464D Expired FR71464E (fr) 1953-04-22 1957-04-09 Circuits de réception radio en diversité pour ondes ultra courtes

Family Applications Before (3)

Application Number Title Priority Date Filing Date
FR1104805D Expired FR1104805A (fr) 1953-04-22 1954-04-21 Circuits de réception radio en diversité pour ondes ultra-courtes
FR67714D Expired FR67714E (fr) 1953-04-22 1955-03-22 Circuits de réception radio en diversité pour ondes ultra-courtes
FR1138803D Expired FR1138803A (fr) 1953-04-22 1955-09-20 Dispositif d'accord perfectionné pour appareils récepteurs de radiophonie

Country Status (6)

Country Link
US (2) US2854568A (fr)
BE (1) BE528237A (fr)
CH (2) CH328282A (fr)
DE (1) DE971592C (fr)
FR (4) FR1104805A (fr)
GB (3) GB734545A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979613A (en) * 1958-08-26 1961-04-11 Itt Radio diversity receiving system
US3037113A (en) * 1959-10-12 1962-05-29 Motorola Inc Control system
GB932808A (en) * 1960-09-30 1963-07-31 Gen Electric Co Ltd Improvements in or relating to electric signal combining arrangements
FR2077969B1 (fr) * 1970-02-27 1973-10-19 Thomson Csf
US4075566A (en) * 1972-03-30 1978-02-21 Catv Components Co. Co-channel interference suppression apparatus
DE2912087C2 (de) * 1979-03-27 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Antenne mit einem unerwünschte Nullstellen aufweisenden Diagramm
US4293955A (en) * 1980-03-17 1981-10-06 Telex Communications, Inc. Diversity reception system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042831A (en) * 1934-05-28 1936-06-02 Rca Corp Receiving system
DE669326C (de) * 1935-12-28 1938-12-22 Telefunken Gmbh Anordnung zur Erzielung selbsttaetiger Regelungen in Empfaengern
US2375223A (en) * 1939-08-24 1945-05-08 Univ Leland Stanford Junior Dielectric guide signaling
US2448866A (en) * 1944-01-14 1948-09-07 Rca Corp Diversity receiving system
FR992116A (fr) * 1944-05-12 1951-10-15 Radio Electr Soc Fr Perfectionnements aux liaisons radio-électriques
NL75109C (fr) * 1944-10-05
US2499967A (en) * 1945-10-06 1950-03-07 Colonial Radio Corp Push-button tuning signal-seeking receiver
US2499584A (en) * 1945-10-15 1950-03-07 Belmont Radio Corp Signal-seeking tuner
US2629816A (en) * 1948-03-16 1953-02-24 Int Standard Electric Corp Diversity system
US2624834A (en) * 1949-09-29 1953-01-06 Rca Corp Diversity frequency shift reception
US2678385A (en) * 1951-04-16 1954-05-11 Rca Corp Diversity receiver
US2786133A (en) * 1953-03-05 1957-03-19 Motorola Inc Diversity receiving system

Also Published As

Publication number Publication date
FR1138803A (fr) 1957-06-20
GB787095A (en) 1957-12-04
FR67714E (fr) 1958-03-18
GB882988A (en) 1961-11-22
CH353776A (de) 1961-04-30
US2854568A (en) 1958-09-30
CH328282A (de) 1958-02-28
DE971592C (de) 1959-02-26
FR1104805A (fr) 1955-11-24
US2844716A (en) 1958-07-22
BE528237A (fr) 1900-01-01
GB734545A (en) 1955-08-03

Similar Documents

Publication Publication Date Title
CH322497A (fr) Récepteur radio pour ondes ultra-courtes
FR1081196A (fr) Aérien pour ondes électromagnétiques courtes
FR71464E (fr) Circuits de réception radio en diversité pour ondes ultra courtes
FR1128952A (fr) Antenne pour ondes ultra-courtes
FR1094934A (fr) Antenne pour micro-ondes à balayage de lobe
FR1114807A (fr) Antenne pour ondes ultra-courtes
FR1143093A (fr) Antenne pour radiophare
CH337882A (fr) Antenne pour ondes ultra-courtes
CH305586A (de) Radioempfangsschaltung.
FR1087641A (fr) Antenne radio pour automobiles
FR78247E (fr) Circuits de réception radio en diversité pour ondes ultra-courtes
CH322502A (de) Drahtlose Nachrichten-Übertragungsanlage
FR1054863A (fr) Antenne de réception pour ondes ultra-courtes
FR1085146A (fr) Antenne de réception pour hyperfréquences
FR1110827A (fr) Antenne incorporée pour récepteur de télévision
FR1051150A (fr) Antenne de réception pour ondes ultra-courtes
FR1113796A (fr) Antenne radioélectrique
FR1103375A (fr) Radiorécepteur
FR1088086A (fr) Antenne de télévision
FR1090990A (fr) Antenne radioélectrique
AT179317B (de) Radioempfangsschaltung
CH326808A (fr) Installation radiotélégraphique
FR1100719A (fr) Radio-émetteur pour télégraphie par glissement de fréquence
FR1058553A (fr) Antenne radio
CH328620A (de) Drahtlose Hochfrequenz-Nachrichtenübertragungsanlage