IE781186L - Telecommunications system - Google Patents

Telecommunications system

Info

Publication number
IE781186L
IE781186L IE781186A IE118678A IE781186L IE 781186 L IE781186 L IE 781186L IE 781186 A IE781186 A IE 781186A IE 118678 A IE118678 A IE 118678A IE 781186 L IE781186 L IE 781186L
Authority
IE
Ireland
Prior art keywords
digital
analog
network
telecommunications network
basic telecommunications
Prior art date
Application number
IE781186A
Other versions
IE46933B1 (en
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 IE781186L publication Critical patent/IE781186L/en
Publication of IE46933B1 publication Critical patent/IE46933B1/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H04N1/001—Systems or arrangements for the transmission of the picture signal specially adapted for transmission via digital wireline networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Facsimiles In General (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

This information transmission system for speech, music, text, images and data has a basic telecommunications network (I), in particular for analog transmission, and an additional digital overlay network (II). The two networks are interconnected between their terminating exchanges (6, 7, 9, 11) via analog-digital or digital-analog converters (10, 12). Current communications facilities are retained thanks to the continued existence of the basic telecommunications network (I), while a user group interested in new, high-speed forms of communication can be served via the digital network (II). <IMAGE> [GB1603898A]
IE1186/78A 1977-06-30 1978-06-13 A telecommunications system IE46933B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2729689A DE2729689B1 (en) 1977-06-30 1977-06-30 Communication system

Publications (2)

Publication Number Publication Date
IE781186L true IE781186L (en) 1978-12-30
IE46933B1 IE46933B1 (en) 1983-11-02

Family

ID=6012865

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1186/78A IE46933B1 (en) 1977-06-30 1978-06-13 A telecommunications system

Country Status (22)

Country Link
JP (1) JPS5413722A (en)
AR (1) AR227616A1 (en)
AT (1) AT361990B (en)
AU (1) AU518649B2 (en)
BE (1) BE868634A (en)
BR (1) BR7804167A (en)
CA (1) CA1108325A (en)
CH (1) CH634702A5 (en)
DE (1) DE2729689B1 (en)
DK (1) DK294678A (en)
FI (1) FI782046A (en)
FR (1) FR2396478B1 (en)
GB (1) GB1603898A (en)
IE (1) IE46933B1 (en)
IT (1) IT1108833B (en)
LU (1) LU79894A1 (en)
MX (1) MX145070A (en)
NL (1) NL7806930A (en)
NO (1) NO148658C (en)
SE (1) SE423588B (en)
YU (1) YU155478A (en)
ZA (1) ZA783426B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE1263T1 (en) * 1978-06-20 1982-07-15 Siemens Aktiengesellschaft Berlin Und Muenchen MESSAGE TRANSMISSION SYSTEM.
DE2917570B1 (en) * 1979-04-30 1980-05-14 Telefonbau & Normalzeit Gmbh Circuit arrangement for a digital telephone subscriber station
DE2919618C2 (en) * 1979-05-16 1981-06-19 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for telephone sets connected to PCM connection lines
DE3028155C2 (en) * 1980-07-25 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digital subscriber line for telephony, including text and data services
DE3033871C2 (en) * 1980-09-09 1982-11-25 Siemens AG, 1000 Berlin und 8000 München Messaging system
CA1189181A (en) * 1981-05-08 1985-06-18 Stephane Guerillot Process and device for the recreation of a brightness analog signal from a digital signal
FR2505588B1 (en) * 1981-05-08 1985-12-06 Agence France Presse SYSTEM FOR THE DIGITAL TRANSMISSION OF INFORMATION IN THE FORM OF ANALOG SIGNALS
JPS58138155A (en) * 1982-02-12 1983-08-16 Nippon Telegr & Teleph Corp <Ntt> Selective connection system for composite terminal
DE3217430A1 (en) * 1982-05-08 1983-11-10 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Circuit arrangement for a digital telecommunications switching system for pulse code and pulse delta modulation
GB2159367B (en) * 1984-05-25 1987-11-04 Stc Plc Telephone exchanges
JPS6120465A (en) * 1984-07-06 1986-01-29 Toshiba Corp Data collecting system
CA1278121C (en) * 1987-12-23 1990-12-18 Michael H. Reichmann Data communication system

Also Published As

Publication number Publication date
FI782046A (en) 1978-12-31
ATA474678A (en) 1980-09-15
AU518649B2 (en) 1981-10-15
AU3710478A (en) 1979-12-20
IT7825005A0 (en) 1978-06-27
FR2396478B1 (en) 1986-03-07
LU79894A1 (en) 1980-01-22
GB1603898A (en) 1981-12-02
JPS5413722A (en) 1979-02-01
AR227616A1 (en) 1982-11-30
SE7807377L (en) 1978-12-31
ZA783426B (en) 1979-06-27
NL7806930A (en) 1979-01-03
CH634702A5 (en) 1983-02-15
IE46933B1 (en) 1983-11-02
DK294678A (en) 1978-12-31
BR7804167A (en) 1979-04-10
NO148658C (en) 1983-11-16
CA1108325A (en) 1981-09-01
MX145070A (en) 1982-01-04
FR2396478A1 (en) 1979-01-26
DE2729689B1 (en) 1978-12-07
IT1108833B (en) 1985-12-09
NO148658B (en) 1983-08-08
SE423588B (en) 1982-05-10
YU155478A (en) 1982-06-30
NO782243L (en) 1979-01-03
BE868634A (en) 1979-01-02
AT361990B (en) 1981-04-10

Similar Documents

Publication Publication Date Title
KR920702115A (en) Multi-telephone signal transmission device and method
AU537810B2 (en) Broadcasting information using subscriber telephone network
AU2782092A (en) Digital telephone, cable tv system and local exchange bypass network
TW338215B (en) Method and apparatus for transmitting and routing voice telephone calls over a packet switched computer network
WO1996029793A3 (en) Multiple digital signal multiplexer
AU4496685A (en) Digital message format for two-way communication and control network
IE781186L (en) Telecommunications system
AU7639594A (en) High-speed digital communications network
AU1676892A (en) Data communication network providing power and message information
EP1381236A3 (en) Multimedia communications via public telephone networks
CA2248926A1 (en) Telecommunications routing based on format of message
WO1996039786A3 (en) Apparatus for providing a mobility adjunct for the public switched telephone network
CA2224605A1 (en) Synchronisation in digital communications networks
EP0353859A3 (en) Network transit prevention
CA2219559A1 (en) Teleconferencing and facsimile communications system and method
CA2146892A1 (en) Interface Arrangement for Providing ISDN Basic Rate Interface Full Channel Service
CA2174681A1 (en) Telecommunications Network for Serving Users from Two Switches
EP0843443A3 (en) Method of transfer of source and control data in a ring communication system
GB2113953B (en) Local loop communication network for routing data and telephone speech signals in digital form
PL326507A1 (en) Digital-analog communication method and system
TW357521B (en) Data transfer system and method for distributed digital cross-connect system
EP0200353A3 (en) Telecommunication system
EP0176953A3 (en) New simultaneous voice and date communications system, with possibility of connection to public or private networks
JPS6416043A (en) Packet communication system
JPS5580993A (en) Data/voice mixture transmission system