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
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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Exchange Systems With Centralized Control (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB238537X | 1939-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL57990C true NL57990C (US20070167544A1-20070719-C00007.png) |
Family
ID=10202379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL57990D NL57990C (US20070167544A1-20070719-C00007.png) | 1939-04-04 |
Country Status (6)
Families Citing this family (15)
| 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 (US20070167544A1-20070719-C00007.png) * | 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 |
|---|---|
| CH238537A (fr) | 1945-07-31 |
| BE438565A (US20070167544A1-20070719-C00007.png) | |
| US2340809A (en) | 1944-02-01 |
| FR864625A (fr) | 1941-05-01 |
| GB527836A (en) | 1940-10-17 |
