NL57990C - - Google Patents

Info

Publication number: NL57990C
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.)

1939-04-04

Publication of NL57990C publication Critical patent/NL57990C/xx

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 OR CALCULATING; 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

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Theoretical Computer Science (AREA)
Quality & Reliability (AREA)
Physics & Mathematics (AREA)
General Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Selective Calling Equipment (AREA)
Exchange Systems With Centralized Control (AREA)

NL57990D 1939-04-04 NL57990C (mo)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
NL57990C true NL57990C (mo)

Family

ID=10202379

Family Applications (1)

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

Country Status (6)

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

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
US2657858A (en) *	1945-02-24	1953-11-03	Punch Engineering Pty Ltd	Article dispensing system
US2627941A (en) *	1945-02-24	1953-02-10	Punch Engineering Pty Ltd	Stock distributing 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 (mo) *	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

0
- BE BE438565D patent/BE438565A/xx unknown
- NL NL57990D patent/NL57990C/xx active
1939
- 1939-04-04 GB GB10524/39A patent/GB527836A/en not_active Expired
1940
- 1940-04-03 FR FR864625D patent/FR864625A/fr not_active Expired
- 1940-04-05 US US328150A patent/US2340809A/en not_active Expired - Lifetime
- 1940-04-16 CH CH238537D patent/CH238537A/fr unknown

Also Published As

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

Publication	Publication Date	Title
FR847856A (mo)	1939-10-18
BE435413A (mo)
BE434030A (mo)
BE433994A (mo)
BE433833A (mo)
BE434647A (mo)
BE432222A (mo)
BE436007A (mo)	1939-09-30
BE432967A (mo)
BE435911A (mo)
NL59211C (mo)
SE107157C1 (mo)	1943-04-20
BE413600A (mo)
BE433626A (mo)
BE437654A (mo)
BE432719A (mo)
BE440896A (mo)
BE433599A (mo)
BE433845A (mo)
BE435664A (mo)	1939-08-31
LU26267A1 (mo)
BE436022A (mo)
BE434846A (mo)
BE432228A (mo)
BE434526A (mo)