IT951804B - Traslatore per linee telefoniche - Google Patents

Traslatore per linee telefoniche

Info

Publication number
IT951804B
IT951804B IT21157/72A IT2115772A IT951804B IT 951804 B IT951804 B IT 951804B IT 21157/72 A IT21157/72 A IT 21157/72A IT 2115772 A IT2115772 A IT 2115772A IT 951804 B IT951804 B IT 951804B
Authority
IT
Italy
Prior art keywords
translator
telephone lines
telephone
lines
Prior art date
Application number
IT21157/72A
Other languages
English (en)
Inventor
N Montefusco
M Manca
Original Assignee
Sits Soc It Telecom Siemens
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
Priority to BE790791D priority Critical patent/BE790791A/xx
Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Priority to IT21157/72A priority patent/IT951804B/it
Priority to FR7239766A priority patent/FR2173899B1/fr
Priority to GB5385872A priority patent/GB1405166A/en
Priority to DE2307015A priority patent/DE2307015A1/de
Priority to NL7302513A priority patent/NL7302513A/xx
Priority to US00336717A priority patent/US3843943A/en
Application granted granted Critical
Publication of IT951804B publication Critical patent/IT951804B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/46—One-port networks
    • H03H11/48—One-port networks simulating reactances
    • H03H11/485—Simulating inductances using operational amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/46—One-port networks
    • H03H11/52—One-port networks simulating negative resistances

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
IT21157/72A 1972-02-29 1972-02-29 Traslatore per linee telefoniche IT951804B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE790791D BE790791A (fr) 1972-02-29 Transformateur pour lignes telephoniques
IT21157/72A IT951804B (it) 1972-02-29 1972-02-29 Traslatore per linee telefoniche
FR7239766A FR2173899B1 (it) 1972-02-29 1972-11-09
GB5385872A GB1405166A (en) 1972-02-29 1972-11-22 Telephone coupler
DE2307015A DE2307015A1 (de) 1972-02-29 1973-02-13 Uebertrageranordnung fuer den anschluss einer vorrichtung an eine fernsprechleitung
NL7302513A NL7302513A (it) 1972-02-29 1973-02-22
US00336717A US3843943A (en) 1972-02-29 1973-02-28 Coupling circuit for telephone line and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21157/72A IT951804B (it) 1972-02-29 1972-02-29 Traslatore per linee telefoniche

Publications (1)

Publication Number Publication Date
IT951804B true IT951804B (it) 1973-07-10

Family

ID=11177593

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21157/72A IT951804B (it) 1972-02-29 1972-02-29 Traslatore per linee telefoniche

Country Status (7)

Country Link
US (1) US3843943A (it)
BE (1) BE790791A (it)
DE (1) DE2307015A1 (it)
FR (1) FR2173899B1 (it)
GB (1) GB1405166A (it)
IT (1) IT951804B (it)
NL (1) NL7302513A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113439A (en) * 1975-03-28 1976-10-06 Yokogawa Hokushin Electric Corp Negative impedance circuit
FR2462006A1 (fr) * 1979-07-20 1981-02-06 Ibm France Dispositif pour augmenter l'inductance parallele d'un transformateur
DE3007791A1 (de) * 1980-02-29 1981-09-10 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur erhoehung der induktivitaet eines uebertragers
US5740241A (en) * 1995-05-12 1998-04-14 Carrier Access Corporation T1 channel bank control process and apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH366309A (it) * 1955-08-10 1962-12-31 S T I P E L Societa Telefonica Dispositivo d'amplificazione ad impedenza negativa
US2941041A (en) * 1955-10-25 1960-06-14 Philips Corp Arrangement for transmitting audiofrequency signals and ringing signals below the audio-frequency band
US3061790A (en) * 1960-02-16 1962-10-30 Rca Corp Signal detectors
US3108231A (en) * 1960-02-29 1963-10-22 Rca Corp Negative resistance amplifier
US3243740A (en) * 1960-10-20 1966-03-29 Westinghouse Electric Corp Reactance enhancing networks
US3344285A (en) * 1965-01-19 1967-09-26 Tektronix Inc Ramp generator and comparator circuit employing non-saturating gate
US3493901A (en) * 1968-03-05 1970-02-03 Nasa Gyrator type circuit
CA939016A (en) * 1972-02-02 1973-12-25 T. Lim Jin Active delay-equalizer network

Also Published As

Publication number Publication date
DE2307015A1 (de) 1973-10-04
BE790791A (fr) 1973-02-15
FR2173899B1 (it) 1976-10-29
US3843943A (en) 1974-10-22
NL7302513A (it) 1973-08-31
FR2173899A1 (it) 1973-10-12
GB1405166A (en) 1975-09-03

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