DK132479C - Apparat til indikering af lekstromme i en matrix - Google Patents

Apparat til indikering af lekstromme i en matrix

Info

Publication number
DK132479C
DK132479C DK194969A DK194969A DK132479C DK 132479 C DK132479 C DK 132479C DK 194969 A DK194969 A DK 194969A DK 194969 A DK194969 A DK 194969A DK 132479 C DK132479 C DK 132479C
Authority
DK
Denmark
Prior art keywords
lesson
drums
matrix
indicating
lesson drums
Prior art date
Application number
DK194969A
Other languages
English (en)
Other versions
DK132479B (da
Inventor
B G Magnusson
S E H Nilsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of DK132479B publication Critical patent/DK132479B/da
Application granted granted Critical
Publication of DK132479C publication Critical patent/DK132479C/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electronic Switches (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
DK194969A 1968-04-10 1969-04-09 Apparat til indikering af lekstromme i en matrix DK132479C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE4852/68A SE318335B (da) 1968-04-10 1968-04-10

Publications (2)

Publication Number Publication Date
DK132479B DK132479B (da) 1975-12-08
DK132479C true DK132479C (da) 1976-05-10

Family

ID=20265122

Family Applications (1)

Application Number Title Priority Date Filing Date
DK194969A DK132479C (da) 1968-04-10 1969-04-09 Apparat til indikering af lekstromme i en matrix

Country Status (10)

Country Link
US (1) US3609546A (da)
BE (1) BE731068A (da)
DE (1) DE1915321B2 (da)
DK (1) DK132479C (da)
FI (1) FI51410C (da)
FR (1) FR2006002A1 (da)
GB (1) GB1263568A (da)
NL (1) NL6905447A (da)
NO (1) NO120646B (da)
SE (1) SE318335B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161159A5 (da) * 1971-11-16 1973-07-06 Commissariat Energie Atomique
US4150331A (en) * 1977-07-29 1979-04-17 Burroughs Corporation Signature encoding for integrated circuits
US5751159A (en) * 1995-09-05 1998-05-12 Motorola, Inc. Semiconductor array and switches formed on a common substrate for array testing purposes
US20040164939A1 (en) * 2001-05-15 2004-08-26 Johnson Mark Thomas Display device comprising a plurality of leds

Also Published As

Publication number Publication date
US3609546A (en) 1971-09-28
GB1263568A (en) 1972-02-09
DE1915321A1 (de) 1969-11-13
NL6905447A (da) 1969-10-14
DK132479B (da) 1975-12-08
DE1915321B2 (de) 1971-07-15
FR2006002A1 (da) 1969-12-19
SE318335B (da) 1969-12-08
BE731068A (da) 1969-09-15
FI51410B (da) 1976-08-31
FI51410C (fi) 1976-12-10
NO120646B (da) 1970-11-16

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