BR8106120A - Disposicao de circuito para pequenos centros telefonicos particulares com transmissao reciproca de sinais digitais entre uma instalacao central e aparelhos telefonicos - Google Patents

Disposicao de circuito para pequenos centros telefonicos particulares com transmissao reciproca de sinais digitais entre uma instalacao central e aparelhos telefonicos

Info

Publication number
BR8106120A
BR8106120A BR8106120A BR8106120A BR8106120A BR 8106120 A BR8106120 A BR 8106120A BR 8106120 A BR8106120 A BR 8106120A BR 8106120 A BR8106120 A BR 8106120A BR 8106120 A BR8106120 A BR 8106120A
Authority
BR
Brazil
Prior art keywords
telephone
digital signal
signal transmission
circuit arrangement
appliances
Prior art date
Application number
BR8106120A
Other languages
English (en)
Portuguese (pt)
Inventor
D Blossfeldt
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of BR8106120A publication Critical patent/BR8106120A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • H04M9/003—Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set, e.g. keyboard or display equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephonic Communication Services (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Meter Arrangements (AREA)
BR8106120A 1980-09-25 1981-09-24 Disposicao de circuito para pequenos centros telefonicos particulares com transmissao reciproca de sinais digitais entre uma instalacao central e aparelhos telefonicos BR8106120A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3036182A DE3036182C2 (de) 1980-09-25 1980-09-25 Verfahren zur wechselseitigen Übertragung von binären Digitalsignalen zwischen einer zentralen Einrichtung und mit ihr verbundenen Fernsprechteilnehmerstellen

Publications (1)

Publication Number Publication Date
BR8106120A true BR8106120A (pt) 1982-06-15

Family

ID=6112832

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8106120A BR8106120A (pt) 1980-09-25 1981-09-24 Disposicao de circuito para pequenos centros telefonicos particulares com transmissao reciproca de sinais digitais entre uma instalacao central e aparelhos telefonicos

Country Status (12)

Country Link
EP (1) EP0048925B1 (enExample)
AR (1) AR230911A1 (enExample)
AT (1) ATE6719T1 (enExample)
AU (1) AU543544B2 (enExample)
BR (1) BR8106120A (enExample)
CA (1) CA1185024A (enExample)
DE (1) DE3036182C2 (enExample)
FI (1) FI74567C (enExample)
GB (1) GB2085695B (enExample)
IN (1) IN155068B (enExample)
NO (1) NO153589C (enExample)
TR (1) TR21185A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248276A1 (de) * 1982-12-28 1984-06-28 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schnittstellenschaltung fuer ein fernmeldesystem
DE4107593C1 (enExample) * 1991-03-09 1992-05-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215779A (en) * 1961-02-24 1965-11-02 Hallicrafters Co Digital data conversion and transmission system
CA1018270A (en) * 1972-05-23 1977-09-27 Federico R. Laliccia Key telephone system using time division and space division control
US4046972A (en) * 1976-10-27 1977-09-06 Bell Telephone Laboratories, Incorporated Key telephone station set circuit

Also Published As

Publication number Publication date
GB2085695B (en) 1984-09-12
NO153589B (no) 1986-01-06
CA1185024A (en) 1985-04-02
AU7564481A (en) 1982-04-01
DE3036182A1 (de) 1982-04-01
DE3036182C2 (de) 1983-12-01
FI74567C (fi) 1988-02-08
IN155068B (enExample) 1984-12-29
AU543544B2 (en) 1985-04-26
GB2085695A (en) 1982-04-28
FI812977L (fi) 1982-03-26
TR21185A (tr) 1983-12-06
NO813203L (no) 1982-03-26
ATE6719T1 (de) 1984-03-15
EP0048925B1 (de) 1984-03-14
FI74567B (fi) 1987-10-30
NO153589C (no) 1986-04-16
AR230911A1 (es) 1984-07-31
EP0048925A1 (de) 1982-04-07

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