GB1407088A - Telecommunication systems - Google Patents

Telecommunication systems

Info

Publication number
GB1407088A
GB1407088A GB4501372A GB4501372A GB1407088A GB 1407088 A GB1407088 A GB 1407088A GB 4501372 A GB4501372 A GB 4501372A GB 4501372 A GB4501372 A GB 4501372A GB 1407088 A GB1407088 A GB 1407088A
Authority
GB
United Kingdom
Prior art keywords
channels
frequencies
radio
transmitter
link
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4501372A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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 GB1407088A publication Critical patent/GB1407088A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)
GB4501372A 1971-10-22 1972-09-29 Telecommunication systems Expired GB1407088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2152721A DE2152721C2 (de) 1971-10-22 1971-10-22 System zur Übertragung von In formationen

Publications (1)

Publication Number Publication Date
GB1407088A true GB1407088A (en) 1975-09-24

Family

ID=5823130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4501372A Expired GB1407088A (en) 1971-10-22 1972-09-29 Telecommunication systems

Country Status (16)

Country Link
JP (1) JPS5434485B2 (ja)
AR (1) AR201272A1 (ja)
AT (1) AT318013B (ja)
AU (1) AU451259B2 (ja)
BE (1) BE790393A (ja)
CA (1) CA996192A (ja)
CH (1) CH545042A (ja)
DE (1) DE2152721C2 (ja)
FI (1) FI58415C (ja)
FR (1) FR2156830B1 (ja)
GB (1) GB1407088A (ja)
IL (1) IL40552A (ja)
IT (1) IT969653B (ja)
NL (1) NL163397B (ja)
SE (1) SE388329B (ja)
YU (1) YU35201B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260881A (en) * 1991-10-26 1993-04-28 Motorola Ltd Trunked system fallback operation

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232668A1 (de) * 1982-09-02 1984-03-08 Siemens AG, 1000 Berlin und 8000 München System zur uebertragung von informationen
DE3232691A1 (de) * 1982-09-02 1984-03-08 Siemens AG, 1000 Berlin und 8000 München System zur uebertragung von informationen
DE3642378A1 (de) * 1986-12-11 1988-06-30 Siemens Ag System zur uebertragung von informationen mit ersatzschalteinrichtungen
WO1997015987A1 (de) * 1995-10-25 1997-05-01 Siemens Aktiengesellschaft System zur übertragung von informationen durch einen gemischtbetrieb einer pdh und einer sdh mit einem ersatzübertragungskanal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260881A (en) * 1991-10-26 1993-04-28 Motorola Ltd Trunked system fallback operation
GB2260881B (en) * 1991-10-26 1995-08-23 Motorola Ltd Trunked system fallback operation

Also Published As

Publication number Publication date
DE2152721C2 (de) 1973-10-31
NL7214293A (ja) 1973-04-25
IL40552A0 (en) 1972-12-29
YU254872A (en) 1980-03-15
IT969653B (it) 1974-04-10
FI58415C (fi) 1981-01-12
JPS5434485B2 (ja) 1979-10-27
SE388329B (sv) 1976-09-27
BE790393A (fr) 1973-02-15
NL163397B (nl) 1980-03-17
JPS4851521A (ja) 1973-07-19
DE2152721A1 (ja) 1973-04-12
AR201272A1 (es) 1975-02-28
YU35201B (en) 1980-09-25
IL40552A (en) 1975-12-31
FR2156830A1 (ja) 1973-06-01
FR2156830B1 (ja) 1977-04-01
CH545042A (de) 1973-11-30
DE2152721B1 (de) 1973-04-12
AU451259B2 (en) 1974-08-01
CA996192A (en) 1976-08-31
AU4764672A (en) 1974-04-26
FI58415B (fi) 1980-09-30
AT318013B (de) 1974-09-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee