BE470229A - - Google Patents

Info

Publication number
BE470229A
BE470229A BE470229DA BE470229A BE 470229 A BE470229 A BE 470229A BE 470229D A BE470229D A BE 470229DA BE 470229 A BE470229 A BE 470229A
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.)
Publication of BE470229A publication Critical patent/BE470229A/xx

Links

Classifications

    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating
    • H04B3/34—Reducing cross-talk, e.g. by compensating by systematic interconnection of lengths of cable during laying; by addition of balancing components to cable during laying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rectifiers (AREA)
BE470229D 1941-11-18 BE470229A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1479841A GB551228A (en) 1941-11-18 1941-11-18 Improvements in or relating to selective electrical circuits

Publications (1)

Publication Number Publication Date
BE470229A true BE470229A (fr)

Family

ID=10047667

Family Applications (1)

Application Number Title Priority Date Filing Date
BE470229D BE470229A (fr) 1941-11-18

Country Status (2)

Country Link
BE (1) BE470229A (fr)
GB (1) GB551228A (fr)

Also Published As

Publication number Publication date
GB551228A (en) 1943-02-12

Similar Documents

Publication Publication Date Title
BE442109A (fr)
BE441893A (fr)
BE440580A (fr)
BE406989A (fr)
BE439798A (fr)
BE440507A (fr)
BE440517A (fr)
BE442130A (fr)
BE440765A (fr)
BE440983A (fr)
BE440997A (fr)
BE441030A (fr)
BE442153A (fr)
BE441261A (fr)
BE441273A (fr)
BE441477A (fr)
BE441524A (fr)
BE441571A (fr)
BE441636A (fr)
BE441671A (fr)
BE377531A (fr)
BE441833A (fr)
BE470229A (fr)
BE442102A (fr)
BE441713A (fr)