AU3555871A - Signalling systems - Google Patents

Signalling systems

Info

Publication number: AU3555871A
Authority: AU; Australia
Prior art keywords: signalling systems; signalling; systems
Prior art date: 1970-11-13
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

Application number

AU35558/71A

Inventor

David Evan Naunton Davies

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

British Railways Board

Original Assignee

British Railways Board

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.)

1970-11-13

Filing date

1971-11-10

Publication date

1973-05-17

1971-11-10 Application filed by British Railways Board filed Critical British Railways Board

1973-05-17 Publication of AU3555871A publication Critical patent/AU3555871A/en

Status Expired legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
- B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
- B61L7/08—Circuitry
- B61L7/083—Common line wire control using currents of different amplitudes, polarities, frequencies, or the like
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
- G08C15/02—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division
- G08C15/04—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path simultaneously, i.e. using frequency division the signals being modulated on carrier frequencies

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Amplitude Modulation (AREA)
Train Traffic Observation, Control, And Security (AREA)
Selective Calling Equipment (AREA)

AU35558/71A 1970-11-13 1971-11-10 Signalling systems Expired AU3555871A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB5414870A GB1360000A (en)	1970-11-13	1970-11-13	Signalling systems

Publications (1)

Publication Number	Publication Date
AU3555871A true AU3555871A (en)	1973-05-17

Family

ID=10470080

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU35558/71A Expired AU3555871A (en)	1970-11-13	1971-11-10	Signalling systems

Country Status (9)

Country	Link
AT (1)	AT317304B (en)
AU (1)	AU3555871A (en)
CH (1)	CH543144A (en)
DE (1)	DE2156393B2 (en)
FR (1)	FR2114609A5 (en)
GB (1)	GB1360000A (en)
IT (1)	IT941120B (en)
SE (1)	SE378495B (en)
ZA (1)	ZA717485B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0776737B2 (en) *	1988-10-21	1995-08-16	富士重工業株式会社	Vehicle diagnostic system
RU2180301C1 (en) *	2001-06-29	2002-03-10	Московский государственный университет путей сообщения	Apparatus for providing enhanced safety degree in railway road station due to additional restrictions of arrival and departure of trains

1970
- 1970-11-13 GB GB5414870A patent/GB1360000A/en not_active Expired
1971
- 1971-11-08 ZA ZA717485A patent/ZA717485B/en unknown
- 1971-11-10 AU AU35558/71A patent/AU3555871A/en not_active Expired
- 1971-11-10 IT IT30918/71A patent/IT941120B/en active
- 1971-11-12 DE DE19712156393 patent/DE2156393B2/en active Pending
- 1971-11-12 CH CH1644071A patent/CH543144A/en not_active IP Right Cessation
- 1971-11-12 FR FR7140552A patent/FR2114609A5/fr not_active Expired
- 1971-11-12 AT AT977771A patent/AT317304B/en not_active IP Right Cessation
- 1971-11-12 SE SE7114505A patent/SE378495B/xx unknown

Also Published As

Publication number	Publication date
IT941120B (en)	1973-03-01
CH543144A (en)	1973-10-15
DE2156393A1 (en)	1972-06-22
SE378495B (en)	1975-09-01
GB1360000A (en)	1974-07-17
FR2114609A5 (en)	1972-06-30
ZA717485B (en)	1972-07-26
AT317304B (en)	1974-08-26
DE2156393B2 (en)	1976-04-22

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