Patent Application Number: 2006203756
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| Summary / Description | Railway signaling and traffic control operated using a radio channel between trains and the central office... provides location information to the central office via radio when the train enters and leaves each zone... route requests and the zone occupancy messages representing the signal aspects (the maximum speed at which the train can proceed), not only for the zone currently occupied, but also for the zone next ahead. |
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| Type of Prior Art | Issued Patents - US |
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| Country | United States of America |
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| Patent/Application # | United States Patent 4711418 |
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| Kind Code | United States (US) - United STATES Patent - A |
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| Patentee Name | John H. Aver |
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| Relevant Pages, Columns, or Lines | |
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| URL | |
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| Filing Date | April 8, 1986 |
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| Additional Information | |
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| Notes | '418 uses an odometer coupled with a wireless network. The P2P application uses the speed of the train in determining location within the track network. |
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Excerpt The present invention relates to railway signaling and traffic control systems, and particularly to a railway signaling and traffic control system wherein information is conveyed between the trains and the central office by radio signals. The invention is especially suitable for providing a radio based railway signaling and traffic control system which utilizes the existing voice radio channel with which the trains and central office are equipped. Communication may also be provided over separate dedicated radio channels or by way of satellites in orbit above the Earth. |
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Claims
A method for accessing a wireless railroad data network (25) comprising: sensing presence of a rail vehicle on a rail track (12); authenticating the rail vehicle to gain temporary access to the wireless railroad data network (25) based on sensed presence of the rail vehicle on the rail track (12 and permitting temporary access by the rail vehicle to the wireless railroad data network (25) based on sensed presence and authentication of the rail vehicle.
| Relevance | Claim 1. ... wherein first radio signals are transmitted from trains travelling along tracks and received at a central office and second radio signals are transmitted from the central office to the trains, said system comprising means for transmitting said first signals which represent the locations of each of said trains with respect to boundaries of successive zones along the tracks and identify the train which is transmitting said signals and the zones which the identified trains are entering and leaving, means responsive to said first signals for transmitting to identified trains said second signals which represent a signal aspect for the zone occupied by each of said identified trains and for the next zone, means on each train for displaying the aspect of the zone which it occupies and for storing the aspect for the next zone, means on each train for automatically operating said displaying means for displaying the stored aspect for the next zone ahead when the train enters the next zone, and means for automatically operating said displaying means for displaying in each train a signal aspect for said next zone more restricted than the signal aspect displayed by said displaying means in said train for the preceding occupied zone in the event that the signal aspect for said next zone is not being stored when said train enters said next zone. |
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A system for accessing a wireless railroad data network (25) comprising: a detection circuitry (22) configured to detect presence of a rail vehicle on a rail track (12); a wireless network interface (26) configured to receive and transmit rail vehicle data; and a wireless network access point (24) coupled to the detection circuitry (22) and configured to provide temporary access to the network interface (26) based on a signal from the detection circuitry (22).
| Relevance | Claim 1 is applicable |
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The system of claim 6, wherein the detection circuitry (22) comprises a control circuit (32) communicatively coupled to the wireless network access point (24) and configured to authenticate the rail vehicle to gain temporary access to the wireless railroad data network (25) based on sensed presence of the rail vehicle on the rail track (12).
| Relevance | Claim 1 is applicable |
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A wireless railroad data network system (10) comprising: a detection circuitry (22) configured to detect presence of a rail vehicle on a rail track (12); a wireless network interface (26) configured to receive and transmit data with a rail vehicle; a wireless network access point (24) coupled to the detection circuitry (22) and configured to provide temporary access to the network interface (26) based on signal from the detection circuitry (22); and an electric power source (28) configured to supply electric power to the wireless network access point (24) based on the signal from the detection circuitry (22).
| Relevance | Claim 1 is applicable |
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The system (10) of claim 9, wherein the detection circuitry (22) comprises a control circuit (32) communicatively coupled to the wireless network access point (24) and configured to authenticate the rail vehicle to gain temporary access to the wireless network access point (24) based on sensed presence of the rail vehicle on the rail track (12).
| Relevance | Claim 1 is applicable |
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United States