GR33807B - Βελτιωσεις εις και εν σχεσει προς συστημα μεταδοσεως τηλεφωνικουσηματος. - Google Patents

Βελτιωσεις εις και εν σχεσει προς συστημα μεταδοσεως τηλεφωνικουσηματος.

Info

Publication number
GR33807B
GR33807B GR670133807A GR670133807A GR33807B GR 33807 B GR33807 B GR 33807B GR 670133807 A GR670133807 A GR 670133807A GR 670133807 A GR670133807 A GR 670133807A GR 33807 B GR33807 B GR 33807B
Authority
GR
Greece
Prior art keywords
transmission system
signal
telephone transmission
samples
relation
Prior art date
Application number
GR670133807A
Other languages
English (en)
Inventor
Fabio Balugani
Franco Mammucari
Isidoro Poretti
Original Assignee
Societa Italiana Telecomunication Siemens S.P.A.
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 Societa Italiana Telecomunication Siemens S.P.A. filed Critical Societa Italiana Telecomunication Siemens S.P.A.
Publication of GR33807B publication Critical patent/GR33807B/el

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Dc Digital Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Furnace Details (AREA)

Abstract

ν σύστημα τηλεφωνικής μεταδόσεως του τύπου χρονικής κατανομής παρέχον διαπολικόν δειγματισμό και λήψιν σήματος ταυτοχρόνως επί αμφοτέρων των ακροδεκτών μόνον όταν η διέλευσης του σήματος είναι ταυτοχρόνως παρούσα επί αμφοτέρων των κατευθύνσεων με τον σκοπό όπως αφαιρεθώσι οι θόρυβοι λόγω φαινομένωνήχους χαρακτηριζόμενη εκ του ότι εν κύκλωμα Δ επίεκάστου ακροδέκτου εκτελεί σύγκρισιν μεταξύ της στάθμης των δειγμάτων σήματος εν μετάδοση και της αντιστοίχου στάθμης δειγμάτων σήματος εν λήψη, ίνααποκλείσει την ανίχνευση του εν μετάδοση δείγματος επί του αντιθέτου ακροδέκτου όταν τα ειρημένα δείγματα δημιουργούνται εκ της ανακλάσεως των αντιστοίχων εν λήψη σημάτων.
GR670133807A 1966-05-05 1967-02-27 Βελτιωσεις εις και εν σχεσει προς συστημα μεταδοσεως τηλεφωνικουσηματος. GR33807B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1016966 1966-05-05

Publications (1)

Publication Number Publication Date
GR33807B true GR33807B (el) 1968-02-06

Family

ID=11133945

Family Applications (1)

Application Number Title Priority Date Filing Date
GR670133807A GR33807B (el) 1966-05-05 1967-02-27 Βελτιωσεις εις και εν σχεσει προς συστημα μεταδοσεως τηλεφωνικουσηματος.

Country Status (9)

Country Link
US (1) US3548103A (el)
AT (1) AT296399B (el)
BE (1) BE695947A (el)
CH (1) CH460092A (el)
DE (1) DE1512781B2 (el)
GB (1) GB1181123A (el)
GR (1) GR33807B (el)
NL (1) NL6706166A (el)
NO (1) NO125707B (el)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896273A (en) * 1971-01-08 1975-07-22 Communications Satellite Corp Digital echo suppressor

Also Published As

Publication number Publication date
US3548103A (en) 1970-12-15
NL6706166A (el) 1967-11-06
DE1512781A1 (de) 1969-09-11
BE695947A (el) 1967-09-01
CH460092A (it) 1968-07-31
GB1181123A (en) 1970-02-11
AT296399B (de) 1972-02-10
DE1512781B2 (de) 1971-01-21
NO125707B (el) 1972-10-16

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