BE468046A - - Google Patents

Info

Publication number
BE468046A
BE468046A BE468046DA BE468046A BE 468046 A BE468046 A BE 468046A BE 468046D A BE468046D A BE 468046DA BE 468046 A BE468046 A BE 468046A
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 BE468046A publication Critical patent/BE468046A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephone Function (AREA)
  • Thermistors And Varistors (AREA)
BE468046D 1942-10-24 BE468046A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463184A US2387269A (en) 1942-10-24 1942-10-24 Telephone system

Publications (1)

Publication Number Publication Date
BE468046A true BE468046A (xx)

Family

ID=23839177

Family Applications (1)

Application Number Title Priority Date Filing Date
BE468046D BE468046A (xx) 1942-10-24

Country Status (6)

Country Link
US (1) US2387269A (xx)
BE (1) BE468046A (xx)
ES (1) ES177484A1 (xx)
FR (1) FR941331A (xx)
GB (1) GB591495A (xx)
NL (1) NL64921C (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518178A (en) * 1947-11-05 1950-08-08 Automatic Elect Lab Antisidetone and line balancing substation circuits for telephone systems
US2732436A (en) * 1947-12-22 1956-01-24 Frequency in cycles per second
US2568150A (en) * 1948-06-15 1951-09-18 Bell Telephone Labor Inc Balancing network for subscribers' telephone sets
US2604543A (en) * 1950-11-09 1952-07-22 Bell Telephone Labor Inc Equalizer circuit
BE505815A (xx) * 1950-12-27
DE886766C (de) * 1951-03-03 1953-08-17 Normalzeit G M B H Einrichtung zur Verhinderung des unerlaubten Abhoerens von Telephongespraechen
DE1039104B (de) * 1951-04-18 1958-09-18 Int Standard Electric Corp Schaltungsanordnung fuer Fernsprech-stationen zur Verhinderung des Mithoerens der eigenen Sprache
BE510745A (xx) * 1951-04-18
DE1038118B (de) * 1951-04-26 1958-09-04 Int Standard Electric Corp Schaltungsanordnung fuer Fernsprechstationen zur Verhinderung des Mithoerens der eigenen Sprache und von Raumgeraeuschen
BE539848A (xx) * 1954-07-16
US3119063A (en) * 1961-01-13 1964-01-21 Gen Dynamics Corp Transmission line terminating impedance distinguishing circuit
DE1928434A1 (de) * 1969-06-04 1970-12-10 Siemens Ag Schaltungsanordnung zum Anschluss von Gleichstrom-Datenuebertragungssystemen mit niedriger Sendespannung an eine Datenvermittlung
NL7805416A (nl) * 1978-05-19 1979-11-21 Philips Nv Zelf-instellende vorkschakeling.
US6146056A (en) * 1998-01-14 2000-11-14 Jennmar Corporation Channel and bearing plate assembly

Also Published As

Publication number Publication date
ES177484A1 (es) 1947-05-01
FR941331A (fr) 1949-01-07
NL64921C (xx)
GB591495A (en) 1947-08-20
US2387269A (en) 1945-10-23

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