BE657664A - - Google Patents
Info
- Publication number
- BE657664A BE657664A BE657664DA BE657664A BE 657664 A BE657664 A BE 657664A BE 657664D A BE657664D A BE 657664DA BE 657664 A BE657664 A BE 657664A
- Authority
- BE
- Belgium
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/04—Indicating or recording train identities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L17/00—Switching systems for classification yards
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/003—Modifications for increasing the reliability for protection
- H03K19/00307—Modifications for increasing the reliability for protection in bipolar transistor circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/007—Fail-safe circuits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Automation & Control Theory (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
- Safety Devices In Control Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR959624A FR1391823A (fr) | 1964-01-08 | 1964-01-08 | Circuit logique de sécurité du type et |
| FR963433A FR85339E (fr) | 1964-01-08 | 1964-02-12 | Circuit logique de sécurité du type et |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE657664A true BE657664A (me) | 1965-04-16 |
Family
ID=26205257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE657664D BE657664A (me) | 1964-01-08 | 1964-12-28 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3421018A (me) |
| BE (1) | BE657664A (me) |
| CH (1) | CH423878A (me) |
| DE (1) | DE1265786B (me) |
| ES (1) | ES307886A1 (me) |
| FR (2) | FR1391823A (me) |
| GB (1) | GB1099001A (me) |
| NL (1) | NL6500180A (me) |
| SE (1) | SE313838B (me) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1290585B (de) * | 1965-09-14 | 1969-03-13 | Siemens Ag | Fehlergeschuetzte Gatterschaltung aus einer Mehrzahl von kettenfoermig hintereinandergeschalteten Transistorverstaerkerstufen |
| US3558905A (en) * | 1967-05-02 | 1971-01-26 | Kokusai Denshin Denwa Co Ltd | Fail-safe logical system |
| US3512010A (en) * | 1967-09-25 | 1970-05-12 | Sybron Corp | Switching circuit with hysteresis |
| US3600604A (en) * | 1968-12-03 | 1971-08-17 | Westinghouse Electric Corp | Failsafe logic gates |
| US3577006A (en) * | 1969-03-10 | 1971-05-04 | Collins Radio Co | Fail-safe pulsed logic and gate |
| US3585377A (en) * | 1969-06-16 | 1971-06-15 | Ibm | Fail-safe decoder circuits |
| US3673429A (en) * | 1970-10-19 | 1972-06-27 | Westinghouse Electric Corp | Pseudo-and gate having failsafe qualities |
| DE2555436C2 (de) * | 1975-12-10 | 1982-09-30 | Brown, Boveri & Cie Ag, 6800 Mannheim | Abfallverzögertes Zeitwerk für ein gepulstes System |
| FR2510845A1 (fr) * | 1981-07-31 | 1983-02-04 | Omera Segid | Circuits logiques de securite utilisables notamment en signalisation ferroviaire et boite de traitement electronique, ou automatisme incorporant au moins un de ces circuits |
| US4795921A (en) * | 1984-04-23 | 1989-01-03 | The Nippon Signal Co., Ltd. | Logic operation-oscillation circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB847224A (en) * | 1956-09-19 | 1960-09-07 | Nat Res Dev | Improvements in or relating to electrical decision element circuits |
| BE639553A (me) * | 1962-11-05 | |||
| US3314013A (en) * | 1963-06-06 | 1967-04-11 | Ibm | Variable delay pulse generating apparatus |
-
1964
- 1964-01-08 FR FR959624A patent/FR1391823A/fr not_active Expired
- 1964-02-12 FR FR963433A patent/FR85339E/fr not_active Expired
- 1964-12-15 DE DEC34654A patent/DE1265786B/de active Pending
- 1964-12-28 BE BE657664D patent/BE657664A/xx unknown
-
1965
- 1965-01-01 GB GB125/65A patent/GB1099001A/en not_active Expired
- 1965-01-05 US US423521A patent/US3421018A/en not_active Expired - Lifetime
- 1965-01-07 ES ES0307886A patent/ES307886A1/es not_active Expired
- 1965-01-07 CH CH13765A patent/CH423878A/fr unknown
- 1965-01-08 NL NL6500180A patent/NL6500180A/xx unknown
- 1965-01-09 SE SE112/65A patent/SE313838B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1391823A (fr) | 1965-03-12 |
| CH423878A (fr) | 1966-11-15 |
| ES307886A1 (es) | 1965-05-01 |
| US3421018A (en) | 1969-01-07 |
| FR85339E (fr) | 1965-07-23 |
| NL6500180A (me) | 1965-07-09 |
| DE1265786B (de) | 1968-04-11 |
| SE313838B (me) | 1969-08-25 |
| GB1099001A (en) | 1968-01-10 |