NO169748C - DEVELOPMENT FOR AA FOEYE IN LOCAL ANALOGUE SERVICE SIGNALS DIGITAL SERVICE CHANNELS IN A DIRECTORY RADIO CONNECTION - Google Patents

DEVELOPMENT FOR AA FOEYE IN LOCAL ANALOGUE SERVICE SIGNALS DIGITAL SERVICE CHANNELS IN A DIRECTORY RADIO CONNECTION

Info

Publication number
NO169748C
NO169748C NO870881A NO870881A NO169748C NO 169748 C NO169748 C NO 169748C NO 870881 A NO870881 A NO 870881A NO 870881 A NO870881 A NO 870881A NO 169748 C NO169748 C NO 169748C
Authority
NO
Norway
Prior art keywords
service
digital
signals
foeye
directory
Prior art date
Application number
NO870881A
Other languages
Norwegian (no)
Other versions
NO870881D0 (en
NO169748B (en
NO870881L (en
Inventor
Hermann Barth
Walter Kucera
Josef A Nossek
Eckard Tiwald
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 NO870881D0 publication Critical patent/NO870881D0/en
Publication of NO870881L publication Critical patent/NO870881L/en
Publication of NO169748B publication Critical patent/NO169748B/en
Publication of NO169748C publication Critical patent/NO169748C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Transceivers (AREA)

Abstract

1. Apparatus for inserting local analog service signals into digital service channels of a radio relay link, in which the terminal stations and the intermediate stations arranged between the latter are provided with a service channel device, characterized in that elements are provided in the service channel device of the intermediate stations for digital service signal superimposition in such a way that the analog service signals, e.g. the FSK signals of a remote monitoring device (FÜ) of the parallel type, are supplied via a PCM codec as A/D converter (2) and a following expander (3) to a digital superimposing device with saturation curve, and are superimposed in the latter (4) with the service signals in digital form which pass through the respective intermediate station, are coupled out of the demodulator and are likewise conducted via an expander (5), and the composite signal is subsequently supplied via a compander (6) to the demodulator of the intermediate station again for onward transmission.
NO870881A 1986-03-10 1987-03-03 DEVELOPMENT FOR AA FOEYE IN LOCAL ANALOGUE SERVICE SIGNALS DIGITAL SERVICE CHANNELS IN A DIRECTORY RADIO CONNECTION NO169748C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3607881 1986-03-10

Publications (4)

Publication Number Publication Date
NO870881D0 NO870881D0 (en) 1987-03-03
NO870881L NO870881L (en) 1987-09-11
NO169748B NO169748B (en) 1992-04-21
NO169748C true NO169748C (en) 1992-07-29

Family

ID=6295955

Family Applications (1)

Application Number Title Priority Date Filing Date
NO870881A NO169748C (en) 1986-03-10 1987-03-03 DEVELOPMENT FOR AA FOEYE IN LOCAL ANALOGUE SERVICE SIGNALS DIGITAL SERVICE CHANNELS IN A DIRECTORY RADIO CONNECTION

Country Status (5)

Country Link
EP (1) EP0238910B1 (en)
AT (1) ATE56330T1 (en)
AU (1) AU593888B2 (en)
DE (1) DE3764682D1 (en)
NO (1) NO169748C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7125833B2 (en) 2003-03-24 2006-10-24 Wacker Chemie Ag Cyclodextrin laundry detergent additive complexes and compositions containing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA979528A (en) * 1973-06-29 1975-12-09 Northern Electric Company Limited Digital/analog subterminal
FR2522908B1 (en) * 1982-03-02 1988-09-16 Lignes Telegraph Telephon METHOD FOR TRANSMITTING A SERVICE CHANNEL, WHICH MAY BE MODIFIED DURING TRANSMISSION, TRANSMITTER AND RECEIVER FOR IMPLEMENTING SUCH A METHOD
DE3322851A1 (en) * 1983-06-24 1985-01-03 Siemens AG, 1000 Berlin und 8000 München METHOD AND ARRANGEMENT FOR TRANSMITTING DIGITAL AUXILIARY SIGNALS IN DIGITAL DIRECTIONAL RADIO SYSTEMS
DE3327517A1 (en) * 1983-07-29 1985-02-07 Siemens AG, 1000 Berlin und 8000 München METHOD AND ARRANGEMENT FOR MONITORING DIGITAL RADIO COMMUNICATIONS

Also Published As

Publication number Publication date
NO870881D0 (en) 1987-03-03
NO169748B (en) 1992-04-21
AU593888B2 (en) 1990-02-22
DE3764682D1 (en) 1990-10-11
NO870881L (en) 1987-09-11
EP0238910B1 (en) 1990-09-05
AU6981687A (en) 1987-09-17
EP0238910A1 (en) 1987-09-30
ATE56330T1 (en) 1990-09-15

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