FR1188597A - Système téléphonique - Google Patents

Système téléphonique

Info

Publication number
FR1188597A
FR1188597A FR1188597DA FR1188597A FR 1188597 A FR1188597 A FR 1188597A FR 1188597D A FR1188597D A FR 1188597DA FR 1188597 A FR1188597 A FR 1188597A
Authority
FR
France
Prior art keywords
telephone system
telephone
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)
French (fr)
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.)
General Telephone Laboratories Inc
Original Assignee
General Telephone Laboratories Inc
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 General Telephone Laboratories Inc filed Critical General Telephone Laboratories Inc
Application granted granted Critical
Publication of FR1188597A publication Critical patent/FR1188597A/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)
  • Amplifiers (AREA)
FR1188597D 1956-11-28 1957-11-16 Système téléphonique Expired FR1188597A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US358833XA 1956-11-28 1956-11-28

Publications (1)

Publication Number Publication Date
FR1188597A true FR1188597A (fr) 1959-09-23

Family

ID=21885349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1188597D Expired FR1188597A (fr) 1956-11-28 1957-11-16 Système téléphonique

Country Status (5)

Country Link
BE (1) BE562469A (instruction)
CH (1) CH358833A (instruction)
DE (1) DE1089418B (instruction)
FR (1) FR1188597A (instruction)
GB (1) GB849530A (instruction)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126454A (en) * 1959-08-31 1964-03-24 Telephone instrument
NL271741A (instruction) * 1960-11-24
NL271744A (instruction) * 1960-11-24
NL271742A (instruction) * 1960-11-24

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE678028C (de) * 1931-10-05 1939-07-07 Stabilovolt G M B H Schaltung fuer Elektronenroehren zur Abnahme einer negativen Gittervorspannung
AT193438B (de) * 1955-11-03 1957-11-25 Kapsch Telephon Telegraph Fernsprechstation mit Verstärker

Also Published As

Publication number Publication date
GB849530A (en) 1960-09-28
DE1089418B (de) 1960-09-22
CH358833A (de) 1961-12-15
BE562469A (instruction)

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