BE693006A - - Google Patents

Info

Publication number
BE693006A
BE693006A BE693006DA BE693006A BE 693006 A BE693006 A BE 693006A BE 693006D A BE693006D A BE 693006DA BE 693006 A BE693006 A BE 693006A
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
Application filed filed Critical
Publication of BE693006A publication Critical patent/BE693006A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F29/146—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Coils Or Transformers For Communication (AREA)
BE693006D 1966-01-27 1967-01-23 BE693006A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52336566A 1966-01-27 1966-01-27
US54545166A 1966-04-26 1966-04-26

Publications (1)

Publication Number Publication Date
BE693006A true BE693006A (fr) 1967-07-24

Family

ID=27061124

Family Applications (1)

Application Number Title Priority Date Filing Date
BE693006D BE693006A (fr) 1966-01-27 1967-01-23

Country Status (2)

Country Link
US (2) US3461247A (fr)
BE (1) BE693006A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582561A (en) * 1969-02-11 1971-06-01 Automatic Elect Lab Permalloy film monitoring device for telephone line circuits
US4118597A (en) * 1975-06-23 1978-10-03 Proctor & Associates Company Method and apparatus for detecting direct currents in a transmission line

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911631A (en) * 1958-06-27 1959-11-03 Rca Corp Magnetic memory systems
US3138720A (en) * 1962-07-30 1964-06-23 Bell Telephone Labor Inc Ferromagnetic sensing device
US3268878A (en) * 1962-10-10 1966-08-23 Ex Cell O Corp Electromagnetic transducer heads

Also Published As

Publication number Publication date
US3466402A (en) 1969-09-09
US3461247A (en) 1969-08-12

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