FR605263A - Perfectionnements dans la transmission des ondes - Google Patents

Perfectionnements dans la transmission des ondes

Info

Publication number
FR605263A
FR605263A FR605263DA FR605263A FR 605263 A FR605263 A FR 605263A FR 605263D A FR605263D A FR 605263DA FR 605263 A FR605263 A FR 605263A
Authority
FR
France
Prior art keywords
wave transmission
wave
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
Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR605263A publication Critical patent/FR605263A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details 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
    • H04B1/66—Details 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 reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/662—Details 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 reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
FR605263D 1925-07-21 1925-09-30 Perfectionnements dans la transmission des ondes Expired FR605263A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18610/25A GB259328A (en) 1925-07-21 1925-07-21 Improvements in wave signalling systems

Publications (1)

Publication Number Publication Date
FR605263A true FR605263A (fr) 1926-05-22

Family

ID=10115388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR605263D Expired FR605263A (fr) 1925-07-21 1925-09-30 Perfectionnements dans la transmission des ondes

Country Status (3)

Country Link
US (1) US1671151A (fr)
FR (1) FR605263A (fr)
GB (1) GB259328A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559661A (en) * 1947-04-02 1951-07-10 Int Standard Electric Corp Multichannel electrical pulse communication system
US2645770A (en) * 1948-02-16 1953-07-14 Veaux Henri Maurice Time division multiplex radio system
US2659869A (en) * 1951-04-18 1953-11-17 Sprague Electric Co Electrical signal delay device
US2886650A (en) * 1952-10-22 1959-05-12 Univ Illinois Recording device
NL199670A (fr) * 1954-08-13
US2879337A (en) * 1955-01-03 1959-03-24 Charles S Reis Apparatus for frequency compression and expansion
US2906816A (en) * 1956-07-24 1959-09-29 Bell Telephone Labor Inc Method and apparatus for reducing television bandwidth

Also Published As

Publication number Publication date
US1671151A (en) 1928-05-29
GB259328A (en) 1926-10-14

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