BE670616A - - Google Patents

Info

Publication number
BE670616A
BE670616A BE670616DA BE670616A BE 670616 A BE670616 A BE 670616A BE 670616D A BE670616D A BE 670616DA BE 670616 A BE670616 A BE 670616A
Authority
BE
Belgium
Application number
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 FR991697A external-priority patent/FR1419019A/fr
Application filed filed Critical
Publication of BE670616A publication Critical patent/BE670616A/xx

Links

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
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/006—Angle modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity 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
    • H04B7/0842—Weighted combining
    • H04B7/0865—Independent weighting, i.e. weights based on own antenna reception parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
BE670616D 1964-10-16 1965-10-07 BE670616A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR991697A FR1419019A (fr) 1964-10-16 1964-10-16 Perfectionnements aux récepteurs d'ondes radio-électriques modulées en fréquence
FR19987A FR88081E (fr) 1964-10-16 1965-06-09 Perfectionnements aux récepteurs d'ondes radioélectriques modulées en fréquence

Publications (1)

Publication Number Publication Date
BE670616A true BE670616A (fr) 1966-04-07

Family

ID=26164073

Family Applications (1)

Application Number Title Priority Date Filing Date
BE670616D BE670616A (fr) 1964-10-16 1965-10-07

Country Status (8)

Country Link
US (1) US3457512A (fr)
BE (1) BE670616A (fr)
DE (1) DE1466048B2 (fr)
FR (1) FR88081E (fr)
GB (1) GB1104436A (fr)
LU (1) LU49630A1 (fr)
NL (1) NL6513363A (fr)
OA (1) OA01837A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681695A (en) * 1969-09-02 1972-08-01 Raytheon Co Multipath compensation system
US3746994A (en) * 1971-03-11 1973-07-17 Datel Corp Apparatus for determining the validity of data received by data
US4117410A (en) * 1977-10-13 1978-09-26 Motorola, Inc. Phase locked loop signal demodulator and squelch circuit
US4340782A (en) * 1980-06-13 1982-07-20 Magnavox Consumer Electronics Co. Circuit for demodulating amplitude and angle modulated broadcast signals

Family Cites Families (6)

* 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
US3195049A (en) * 1960-05-04 1965-07-13 Itt Radio diversity receiving system with automatic phase control
US3188571A (en) * 1962-11-28 1965-06-08 Collins Radio Co Detected noise actuated, agc noisequieting action dependent, and total noise level adaptive rf receiver squelch system
US3328698A (en) * 1963-06-28 1967-06-27 Itt Selector for choosing the strongest signal including means for inhibiting all signals below a selected level
US3348152A (en) * 1964-03-23 1967-10-17 Jr Charles R Laughlin Diversity receiving system with diversity phase-lock
US3366884A (en) * 1964-07-30 1968-01-30 Fujitsu Ltd Radio frequency noise eliminating circuit

Also Published As

Publication number Publication date
DE1466048A1 (fr) 1971-03-25
US3457512A (en) 1969-07-22
DE1466048B2 (de) 1971-03-25
FR88081E (fr) 1966-01-07
LU49630A1 (fr) 1965-12-13
GB1104436A (en) 1968-02-28
OA01837A (fr) 1970-01-14
NL6513363A (fr) 1966-04-18

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