IT1009134B - Modem numerico a divisione di tem po per trasmissione di dati - Google Patents

Modem numerico a divisione di tem po per trasmissione di dati

Info

Publication number
IT1009134B
IT1009134B IT6735674A IT6735674A IT1009134B IT 1009134 B IT1009134 B IT 1009134B IT 6735674 A IT6735674 A IT 6735674A IT 6735674 A IT6735674 A IT 6735674A IT 1009134 B IT1009134 B IT 1009134B
Authority
IT
Italy
Prior art keywords
modem
numerical
data transmission
time division
division
Prior art date
Application number
IT6735674A
Other languages
English (en)
Italian (it)
Inventor
R Fidanza
R Rocci
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT6735674A priority Critical patent/IT1009134B/it
Priority to FR7503574A priority patent/FR2260900A1/fr
Priority to DE19752505457 priority patent/DE2505457C3/de
Priority to CH156375A priority patent/CH582458A5/xx
Application granted granted Critical
Publication of IT1009134B publication Critical patent/IT1009134B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/448—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal
    • H04Q1/4485—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency with conversion of a single frequency signal into a digital signal which is transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IT6735674A 1974-02-11 1974-02-11 Modem numerico a divisione di tem po per trasmissione di dati IT1009134B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT6735674A IT1009134B (it) 1974-02-11 1974-02-11 Modem numerico a divisione di tem po per trasmissione di dati
FR7503574A FR2260900A1 (en) 1974-02-11 1975-02-05 Time multiplex transmission system for digital data signals - has modems between telephone exchanges for asynchronous data conversion
DE19752505457 DE2505457C3 (de) 1974-02-11 1975-02-10 Verfahren und Schaltungsanordnung zur Übertragung von Signalisierungsinformationen oder Dateninformationen zwischen digitalen Vermittlungsämtern
CH156375A CH582458A5 (forum.php) 1974-02-11 1975-02-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6735674A IT1009134B (it) 1974-02-11 1974-02-11 Modem numerico a divisione di tem po per trasmissione di dati

Publications (1)

Publication Number Publication Date
IT1009134B true IT1009134B (it) 1976-12-10

Family

ID=11301710

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6735674A IT1009134B (it) 1974-02-11 1974-02-11 Modem numerico a divisione di tem po per trasmissione di dati

Country Status (4)

Country Link
CH (1) CH582458A5 (forum.php)
DE (1) DE2505457C3 (forum.php)
FR (1) FR2260900A1 (forum.php)
IT (1) IT1009134B (forum.php)

Also Published As

Publication number Publication date
FR2260900A1 (en) 1975-09-05
DE2505457A1 (de) 1975-08-14
DE2505457B2 (forum.php) 1979-03-22
FR2260900B1 (forum.php) 1978-02-03
DE2505457C3 (de) 1979-11-22
CH582458A5 (forum.php) 1976-11-30

Similar Documents

Publication Publication Date Title
GB1516512A (en) Chalcogenium salts
GB1516352A (en) Halonium salts
JPS5177803A (en) Dodenkikidotaibaayo surotsutorainaa ken hojigu
GB1521465A (en) Gearboxes
GB1491586A (en) Automatic machines
SE420128B (sv) Indikeringsratt for vridspindlar
ZA7540B (en) Substituted chalcones
ZA752653B (en) Phenol compounds
SE421649B (sv) Transmission
IT1043435B (it) Additivi per lubrificanti
NO144586C (no) Styringssystem for et hydrofoilfartoey.
IT1013435B (it) Reattore per idrolisi
IT1024828B (it) Equalizzatore numerico per trasmissione di dati
IT1043606B (it) Disposizione circuitale per la trasmisstone di dati in duplice a due fili
DK361275A (da) Faksimile transmissionsanleg beduchaud m
HK39478A (en) Knitting method
IT1042638B (it) Disposizione circuitale per un convestitore a specuenza inter fria
IT1046391B (it) Complesso di trasmissione a ingranaggi
IT1009134B (it) Modem numerico a divisione di tem po per trasmissione di dati
SE7511366L (sv) Transmissionsanleggning
ZA751005B (en) Guide arrangement for roads
IT1052426B (it) Trasmissione per veicoli
IT1030433B (it) Macchina bruciapelo per filati con dispositivo a raschiare
SE7506337L (sv) Transmissionsledning
SE392867B (sv) Secktomningsmaskin