NL57990C - - Google Patents

Info

Publication number
NL57990C
NL57990C NL57990DA NL57990C NL 57990 C NL57990 C NL 57990C NL 57990D A NL57990D A NL 57990DA NL 57990 C NL57990 C NL 57990C
Authority
NL
Netherlands
Application number
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.)
Publication of NL57990C publication Critical patent/NL57990C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
NL57990D 1939-04-04 NL57990C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB238537X 1939-04-04

Publications (1)

Publication Number Publication Date
NL57990C true NL57990C (xx)

Family

ID=10202379

Family Applications (1)

Application Number Title Priority Date Filing Date
NL57990D NL57990C (xx) 1939-04-04

Country Status (6)

Country Link
US (1) US2340809A (xx)
BE (1) BE438565A (xx)
CH (1) CH238537A (xx)
FR (1) FR864625A (xx)
GB (1) GB527836A (xx)
NL (1) NL57990C (xx)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB539745A (en) * 1940-02-16 1941-09-23 William Hatton Improvements in or relating to electric calculator equipment
US2543199A (en) * 1943-12-20 1951-02-27 Teletype Corp Message numbering apparatus
US2535218A (en) * 1945-01-11 1950-12-26 Automatic Elect Lab Automatic charge accounting system
US2627941A (en) * 1945-02-24 1953-02-10 Punch Engineering Pty Ltd Stock distributing system
US2657858A (en) * 1945-02-24 1953-11-03 Punch Engineering Pty Ltd Article dispensing system
US2588923A (en) * 1946-01-16 1952-03-11 Int Standard Electric Corp Calculator
US2594960A (en) * 1946-12-31 1952-04-29 Teleregister Corp Electrical storage and signaling system
US2636672A (en) * 1949-01-19 1953-04-28 Ibm Selective sequence electronic calculator
BE502094A (xx) * 1950-03-22
US2824694A (en) * 1950-09-06 1958-02-25 Boni Alessandro Analytic calculating machine
US3054560A (en) * 1958-02-04 1962-09-18 Westinghouse Air Brake Co Computer test and change-over circuit
US3078443A (en) * 1959-01-22 1963-02-19 Alan C Rose Compound error correction system
US3023958A (en) * 1959-08-14 1962-03-06 Honeywell Regulator Co Information handling apparatus
US3228001A (en) * 1960-02-04 1966-01-04 Sperry Gyroscope Company Of Ca Redundant input reliability check for programmed multi-channel position control
US4807228A (en) * 1987-03-18 1989-02-21 American Telephone And Telegraph Company, At&T Bell Laboratories Method of spare capacity use for fault detection in a multiprocessor system

Also Published As

Publication number Publication date
FR864625A (fr) 1941-05-01
CH238537A (fr) 1945-07-31
US2340809A (en) 1944-02-01
GB527836A (en) 1940-10-17
BE438565A (xx)

Similar Documents

Publication Publication Date Title
FR847856A (xx)
IT379688B (xx)
BE432222A (xx)
BE434526A (xx)
BE440896A (xx)
BE435911A (xx)
NL57990C (xx)
BE433708A (xx)
BE435823A (xx)
BE435757A (xx)
BE435664A (xx)
BE435654A (xx)
BE435601A (xx)
BE435474A (xx)
BE435413A (xx)
BE435335A (xx)
BE435213A (xx)
BE442032A (xx)
BE453062A (xx)
BE467443A (xx)
LU26267A1 (xx)
BE434846A (xx)
BE434714A (xx)
BE434662A (xx)
NL58209C (xx)