GB1369598A - Railway communication systems - Google Patents
Railway communication systemsInfo
- Publication number
- GB1369598A GB1369598A GB5052070A GB5052070A GB1369598A GB 1369598 A GB1369598 A GB 1369598A GB 5052070 A GB5052070 A GB 5052070A GB 5052070 A GB5052070 A GB 5052070A GB 1369598 A GB1369598 A GB 1369598A
- Authority
- GB
- United Kingdom
- Prior art keywords
- train
- memory
- matrix
- memories
- read
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 230000015654 memory Effects 0.000 abstract 6
- 239000011159 matrix material Substances 0.000 abstract 3
- 101001106432 Homo sapiens Rod outer segment membrane protein 1 Proteins 0.000 abstract 1
- 101150065817 ROM2 gene Proteins 0.000 abstract 1
- 102100021424 Rod outer segment membrane protein 1 Human genes 0.000 abstract 1
- 101100524639 Toxoplasma gondii ROM3 gene Proteins 0.000 abstract 1
- 101100524644 Toxoplasma gondii ROM4 gene Proteins 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
- B61L3/225—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using separate conductors along the route
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
1369598 Automatic train control BRITISH RAILWAYS BOARD 7 Oct 1971 [23 Oct 1970] 50520/70 Heading B7N [Also in Division G4] In a railway communication system, a transmitter selects the contents of one of a plurality of read-only memories according to the identity of a prevailing one of a plurality of signal aspects and transmits them continuously for as long as the prevailing aspect is showing. Fig. 1 shows trackside equipment in a track-to-train communication system. One or more relays HR, HHR, DR are energized to light one or more coloured signal lamps Y1, G, Y2, R and connect the output of one of clock-pulse driven readonly memories ROM1, ROM2, ROM3, ROM4 to a modulator 7 from which the information (including parity bits) from the memory is inductively coupled via track conductors to the train to control train speed or indicate maximum permissible speed visually to the driver. As a modification the relays could control supply of power or the clock pulses to the memories. The system could be applied to telemetry instead. Read-only memory (Fig. 2).-A clock pulse input 26 drives a counter 16 which selects successive columns of a 16 x 16 diode matrix at 11, 12, 23, 24 and drives a counter 32 via line 20 to select successive rows of the matrix via decoder 30, 31. The positions of each column of the matrix are connected to an input of 11 or 12 respective to the column via two NANDs 13, 14 and a NOR 15 (which thus act as an AND). Thus the memory is read out completely, serial by bit, at 25, repeatedly.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5052070A GB1369598A (en) | 1970-10-23 | 1970-10-23 | Railway communication systems |
| US188065A US3867573A (en) | 1970-10-23 | 1971-10-12 | Track to train communication systems |
| ZA716816A ZA716816B (en) | 1970-10-23 | 1971-10-12 | Improvements relating to track to train communication systems |
| CA125,082A CA941494A (en) | 1970-10-23 | 1971-10-13 | Track to train communication systems |
| AU34511/71A AU460860B2 (en) | 1970-10-23 | 1971-10-13 | Improvements relating to track to train communication systems |
| CH1525671A CH534933A (en) | 1970-10-23 | 1971-10-20 | Device for transmitting information in digital code, in a signaling installation |
| DE19712152363 DE2152363A1 (en) | 1970-10-23 | 1971-10-21 | Transmitter for signaling devices for the transmission of digitally coded information |
| AT910571A AT323803B (en) | 1970-10-23 | 1971-10-21 | TRACK REMOTE DETECTION SYSTEM FOR TRANSMISSION OR SENDING TRACK INFORMATION TO A RECEIVER |
| FR7138019A FR2113115A5 (en) | 1970-10-23 | 1971-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5052070A GB1369598A (en) | 1970-10-23 | 1970-10-23 | Railway communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1369598A true GB1369598A (en) | 1974-10-09 |
Family
ID=10456201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5052070A Expired GB1369598A (en) | 1970-10-23 | 1970-10-23 | Railway communication systems |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3867573A (en) |
| AT (1) | AT323803B (en) |
| AU (1) | AU460860B2 (en) |
| CA (1) | CA941494A (en) |
| CH (1) | CH534933A (en) |
| DE (1) | DE2152363A1 (en) |
| FR (1) | FR2113115A5 (en) |
| GB (1) | GB1369598A (en) |
| ZA (1) | ZA716816B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE380769B (en) * | 1974-03-25 | 1975-11-17 | Philips Svenska Ab | INFORMATION TRANSMISSION SYSTEM FOR TRANSMISSION OF INFORMATION REGARDING DIFFERENT SIGNAL CONDITIONS |
| US4166599A (en) * | 1977-06-21 | 1979-09-04 | General Signal Corporation | Wayside oriented moving block |
| CA1192616A (en) * | 1981-06-08 | 1985-08-27 | Robert C. Field | Radio channel visual identification system |
| FR2639306B1 (en) * | 1988-11-18 | 1990-12-21 | Alsthom Gec | SYSTEM FOR TRANSMITTING INITIALIZATION INFORMATION, BETWEEN FIXED FACILITIES AND TRAINS |
| DE50012604D1 (en) * | 2000-07-12 | 2006-05-24 | Siemens Schweiz Ag Zuerich | Device for transmitting a status signal of a traffic control device to a vehicle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3272979A (en) * | 1963-01-24 | 1966-09-13 | Gen Signal Corp | Decoding apparatus for continuous inductive transmission system |
| US3272980A (en) * | 1963-02-25 | 1966-09-13 | Gen Signal Corp | Intermittent train control system |
| US3495677A (en) * | 1968-01-31 | 1970-02-17 | American Chain & Cable Co | Guidance system |
| US3696758A (en) * | 1969-12-18 | 1972-10-10 | Genisco Technology Corp | Locomotive signaling and control system |
| US3659275A (en) * | 1970-06-08 | 1972-04-25 | Cogar Corp | Memory correction redundancy system |
| US3665426A (en) * | 1970-10-07 | 1972-05-23 | Singer Co | Alterable read only memory organization |
-
1970
- 1970-10-23 GB GB5052070A patent/GB1369598A/en not_active Expired
-
1971
- 1971-10-12 US US188065A patent/US3867573A/en not_active Expired - Lifetime
- 1971-10-12 ZA ZA716816A patent/ZA716816B/en unknown
- 1971-10-13 AU AU34511/71A patent/AU460860B2/en not_active Expired
- 1971-10-13 CA CA125,082A patent/CA941494A/en not_active Expired
- 1971-10-20 CH CH1525671A patent/CH534933A/en not_active IP Right Cessation
- 1971-10-21 DE DE19712152363 patent/DE2152363A1/en active Pending
- 1971-10-21 AT AT910571A patent/AT323803B/en not_active IP Right Cessation
- 1971-10-22 FR FR7138019A patent/FR2113115A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ZA716816B (en) | 1972-06-28 |
| CH534933A (en) | 1973-03-15 |
| FR2113115A5 (en) | 1972-06-23 |
| AU3451171A (en) | 1973-04-19 |
| US3867573A (en) | 1975-02-18 |
| DE2152363A1 (en) | 1972-04-27 |
| AT323803B (en) | 1975-07-25 |
| AU460860B2 (en) | 1975-05-08 |
| CA941494A (en) | 1974-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |