IT1009134B - NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION - Google Patents

NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION

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
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/en
Priority to FR7503574A priority patent/FR2260900A1/en
Priority to DE19752505457 priority patent/DE2505457C3/en
Priority to CH156375A priority patent/CH582458A5/xx
Application granted granted Critical
Publication of IT1009134B publication Critical patent/IT1009134B/en

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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IT6735674A 1974-02-11 1974-02-11 NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION IT1009134B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT6735674A IT1009134B (en) 1974-02-11 1974-02-11 NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION
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 (en) 1974-02-11 1975-02-10 Method and circuit arrangement for the transmission of signaling information or data information between digital switching offices
CH156375A CH582458A5 (en) 1974-02-11 1975-02-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6735674A IT1009134B (en) 1974-02-11 1974-02-11 NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION

Publications (1)

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

Family

ID=11301710

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6735674A IT1009134B (en) 1974-02-11 1974-02-11 NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION

Country Status (4)

Country Link
CH (1) CH582458A5 (en)
DE (1) DE2505457C3 (en)
FR (1) FR2260900A1 (en)
IT (1) IT1009134B (en)

Also Published As

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

Similar Documents

Publication Publication Date Title
GB1516512A (en) Chalcogenium salts
GB1521465A (en) Gearboxes
GB1491586A (en) Automatic machines
SE420128B (en) INDICATOR RATE INDICATOR
ZA7540B (en) Substituted chalcones
ZA752653B (en) Phenol compounds
JPS5126132A (en) Gorufubooruno teii ofusochi
SE421649B (en) TRANSMISSION
IT1043435B (en) ADDITIVES FOR LUBRICANTS
NO144586C (en) MANAGEMENT SYSTEM FOR A HYDROFOIL VESSEL.
IT1013435B (en) REACTOR FOR HYDROLYSIS
IT1024828B (en) NUMERICAL EQUALIZER FOR DATA TRANSMISSION
IT1043606B (en) CIRCUITIVE PROVISION FOR THE TRANSMISSION OF DATA IN TWO-WIRE TWO
DK361275A (en) FAXIMILE TRANSMISSION SYSTEM BEDUCHAUD M
HK39478A (en) Knitting method
IT1042638B (en) CIRCUITIVE ARRANGEMENT FOR AN INTER FRIA-MADE CONVERSOR
IT1046391B (en) GEAR TRANSMISSION COMPLEX
IT1009134B (en) NUMERICAL MODEM WITH TIME DIVISION FOR DATA TRANSMISSION
SE7511366L (en) TRANSMISSION PLANT
ZA751005B (en) Guide arrangement for roads
IT1052426B (en) TRANSMISSION FOR VEHICLES
IT1030433B (en) HAIR-BURNING MACHINE FOR YARN WITH SCRAPING DEVICE
SE7506337L (en) TRANSMISSION MANAGEMENT
SE392867B (en) SECTOM EMPTY MACHINE
GB1446832A (en) Box construction