FR1048760A - Perfectionnements aux postes d'abonnés - Google Patents

Perfectionnements aux postes d'abonnés

Info

Publication number
FR1048760A
FR1048760A FR1048760DA FR1048760A FR 1048760 A FR1048760 A FR 1048760A FR 1048760D A FR1048760D A FR 1048760DA FR 1048760 A FR1048760 A FR 1048760A
Authority
FR
France
Prior art keywords
subscriber stations
subscriber
stations
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)
Inventor
Lyndall Crossthwaite Pocock
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1048760A publication Critical patent/FR1048760A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Devices For Supply Of Signal Current (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR1048760D 1951-04-18 1951-05-08 Perfectionnements aux postes d'abonnés Expired FR1048760A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2775649X 1951-04-18
GB308152X 1951-04-26

Publications (1)

Publication Number Publication Date
FR1048760A true FR1048760A (fr) 1953-12-23

Family

ID=32328137

Family Applications (3)

Application Number Title Priority Date Filing Date
FR1048760D Expired FR1048760A (fr) 1951-04-18 1951-05-08 Perfectionnements aux postes d'abonnés
FR63714D Expired FR63714E (fr) 1951-04-18 1952-04-17 Perfectionnements aux postes d'abonnés
FR63718D Expired FR63718E (fr) 1951-04-18 1952-04-25 Perfectionnements aux postes d'abonnés

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR63714D Expired FR63714E (fr) 1951-04-18 1952-04-17 Perfectionnements aux postes d'abonnés
FR63718D Expired FR63718E (fr) 1951-04-18 1952-04-25 Perfectionnements aux postes d'abonnés

Country Status (4)

Country Link
US (2) US2770679A (fr)
BE (1) BE510745A (fr)
CH (2) CH315749A (fr)
FR (3) FR1048760A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188662B (de) * 1963-07-11 1965-03-11 Standard Elektrik Lorenz Ag Ausgleichsnetzwerk fuer Fernsprech-Teilnehmerstationen
GB1050226A (fr) * 1963-11-27
JPS495644B1 (fr) * 1970-02-07 1974-02-08

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2287998A (en) * 1939-06-10 1942-06-30 Bell Telephone Labor Inc Telephone circuit
US2288049A (en) * 1939-06-10 1942-06-30 Bell Telephone Labor Inc Telephone set circuit
NL64921C (fr) * 1942-10-24
US2732436A (en) * 1947-12-22 1956-01-24 Frequency in cycles per second
US2604543A (en) * 1950-11-09 1952-07-22 Bell Telephone Labor Inc Equalizer circuit
BE505815A (fr) * 1950-12-27

Also Published As

Publication number Publication date
US2775649A (en) 1956-12-25
BE510745A (fr)
CH315749A (de) 1956-08-31
US2770679A (en) 1956-11-13
CH308152A (fr) 1955-06-30
FR63714E (fr) 1955-10-03
FR63718E (fr) 1955-10-03

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