GB1485877A - Transmission systems - Google Patents

Transmission systems

Info

Publication number
GB1485877A
GB1485877A GB54804/74A GB5480474A GB1485877A GB 1485877 A GB1485877 A GB 1485877A GB 54804/74 A GB54804/74 A GB 54804/74A GB 5480474 A GB5480474 A GB 5480474A GB 1485877 A GB1485877 A GB 1485877A
Authority
GB
United Kingdom
Prior art keywords
generator
pulse
counter
pulse pattern
frequency
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
GB54804/74A
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 Corp
Original Assignee
Siemens Corp
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
Priority claimed from DE19742404663 external-priority patent/DE2404663C2/de
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1485877A publication Critical patent/GB1485877A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/40—Monitoring; Testing of relay systems
    • H04B17/401—Monitoring; Testing of relay systems with selective localization
    • H04B17/402—Monitoring; Testing of relay systems with selective localization using different frequencies
    • H04B17/404—Monitoring; Testing of relay systems with selective localization using different frequencies selected by local filters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
GB54804/74A 1974-01-31 1974-12-18 Transmission systems Expired GB1485877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742404663 DE2404663C2 (de) 1974-01-31 Einrichtung zur Ermittlung von Fehlern in mit Regeneratoren versehenen Zwischenstellen eines mit Pulscodemodulation arbeitenden Übertragunssystems

Publications (1)

Publication Number Publication Date
GB1485877A true GB1485877A (en) 1977-09-14

Family

ID=5906215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54804/74A Expired GB1485877A (en) 1974-01-31 1974-12-18 Transmission systems

Country Status (12)

Country Link
JP (1) JPS552107B2 (en, 2012)
AT (1) AT367550B (en, 2012)
BE (1) BE825049A (en, 2012)
BR (1) BR7500599A (en, 2012)
FR (1) FR2260233B1 (en, 2012)
GB (1) GB1485877A (en, 2012)
IL (1) IL46404A (en, 2012)
IN (1) IN143373B (en, 2012)
IT (1) IT1031204B (en, 2012)
NL (1) NL169130C (en, 2012)
SE (1) SE393722B (en, 2012)
YU (1) YU36569B (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478910A1 (fr) * 1980-03-18 1981-09-25 Trt Telecom Radio Electr Systeme de telelocalisation de repeteurs

Also Published As

Publication number Publication date
SE393722B (sv) 1977-05-16
FR2260233B1 (en, 2012) 1977-04-15
SE7501014L (en, 2012) 1975-08-01
DE2404663A1 (en, 2012) 1975-07-31
IT1031204B (it) 1979-04-30
DE2404663B1 (de) 1975-07-31
IL46404A0 (en) 1975-04-25
AT367550B (de) 1982-07-12
BR7500599A (pt) 1975-11-11
NL169130C (nl) 1982-06-01
ATA36875A (de) 1981-11-15
NL169130B (nl) 1982-01-04
NL7501070A (nl) 1975-08-04
JPS50110214A (en, 2012) 1975-08-30
YU22875A (en) 1982-02-25
YU36569B (en) 1984-02-29
BE825049A (fr) 1975-05-15
IL46404A (en) 1977-03-31
IN143373B (en, 2012) 1977-11-12
AU7714575A (en) 1976-07-08
FR2260233A1 (en, 2012) 1975-08-29
JPS552107B2 (en, 2012) 1980-01-18

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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