FR864103A - Systèmes de transmission à fréquences élevées - Google Patents

Systèmes de transmission à fréquences élevées

Info

Publication number
FR864103A
FR864103A FR864103DA FR864103A FR 864103 A FR864103 A FR 864103A FR 864103D A FR864103D A FR 864103DA FR 864103 A FR864103 A FR 864103A
Authority
FR
France
Prior art keywords
high frequency
transmission systems
frequency transmission
systems
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.)
Expired
Application number
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 US263367A external-priority patent/US2285851A/en
Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR864103A publication Critical patent/FR864103A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/924—Coupled nut and bolt
    • Y10S411/929—Thread lock
    • Y10S411/935—Cam or cone grip

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Transmitters (AREA)
FR864103D 1939-03-22 1940-03-15 Systèmes de transmission à fréquences élevées Expired FR864103A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US263367A US2285851A (en) 1939-03-22 1939-03-22 Short wave transmitter
US420794A US2359618A (en) 1939-03-22 1941-11-28 Short-wave amplifier
US420796A US2321456A (en) 1939-03-22 1941-11-28 Short-wave keying device

Publications (1)

Publication Number Publication Date
FR864103A true FR864103A (fr) 1941-04-19

Family

ID=27401590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864103D Expired FR864103A (fr) 1939-03-22 1940-03-15 Systèmes de transmission à fréquences élevées

Country Status (3)

Country Link
US (2) US2321456A (fr)
BE (1) BE465289A (fr)
FR (1) FR864103A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE459544A (fr) * 1944-03-29
US2540817A (en) * 1947-01-30 1951-02-06 Philco Corp Band-pass coupling network
US2557969A (en) * 1948-12-29 1951-06-26 Frank C Isely Shielded ultra high frequency tuning apparatus
US2963703A (en) * 1956-10-01 1960-12-06 Carlyle J Sletten Method and means for antenna coupling
CN100590984C (zh) * 2002-01-31 2010-02-17 Nxp股份有限公司 发射机和/或接收机模块

Also Published As

Publication number Publication date
US2359618A (en) 1944-10-03
BE465289A (fr)
US2321456A (en) 1943-06-08

Similar Documents

Publication Publication Date Title
FR867296A (fr) Systèmes de transmission à fréquence élevée
FR869045A (fr) Systèmes de transmission à large bande
FR869048A (fr) Systèmes de transmission à modulation de fréquence
FR865937A (fr) Systèmes à fréquences ultra-élevées
FR843159A (fr) Systèmes de transmission
FR860224A (fr) Systèmes de transmission d'ondes électriques à fréquences élevées
FR860972A (fr) Systèmes de transmission d'ondes électriques
FR887810A (fr) Systèmes de transmission
FR867451A (fr) Systèmes de communications radioélectriques
FR863262A (fr) Systèmes de transmission à fréquences élevées
FR864103A (fr) Systèmes de transmission à fréquences élevées
FR841895A (fr) Systèmes de transmission à secret
FR833743A (fr) Systèmes de transmission radioélectriques
FR867450A (fr) Systèmes de communications à bureaux centraux
FR854914A (fr) Systèmes de transmission à courants porteurs
FR848805A (fr) Systèmes de télécommunications
FR867449A (fr) Systèmes de transmission
FR867359A (fr) Systèmes de communications radioélectriques
FR837921A (fr) Systèmes de transmission à hautes fréquences
FR867844A (fr) Systèmes de transmission à ondes porteuses modulées
FR858085A (fr) Systèmes de transmission d'ondes électriques à fréquences élevées
FR847620A (fr) Systèmes télégraphiques
FR861689A (fr) Systèmes de transmission à onde porteuse
FR867237A (fr) Systèmes de transmission à ondes porteuses
FR820424A (fr) Systèmes de transmission à haute fréquence