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公开(公告)号：US11818631B2
公开(公告)日：2023-11-14
申请号：US17510823
申请日：2021-10-26
发明人： Carl L. Haas , Padam Dhoj Swar , Brian Kurz , Richard S. Klemanski , James Cowan , Daniel McGee
IPC分类号： H04W4/12 , H04B17/318 , H04W24/10 , H04W24/08
CPC分类号： H04W4/12 , H04B17/318 , H04W24/08 , H04W24/10
摘要： A communication device and method may include at least one tuner circuit that monitors at least a first frequency channel and a second frequency channel. A controller of the radio receiver may measure a first received signal strength indicator (RSSI) value over time for the first frequency channel and a second RSSI value over time for the second frequency channel. The first and second RSSI values are based on a signal strength of radio frequency (RF) energy received on the first and second frequency channels, respectively. The controller may detect a leader portion of a message on the first frequency channel responsive to a change in the first RSSI value exceeding a step change threshold. The controller may extract, via a detector circuit, message data from a carrier wave of the RF message.
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公开(公告)号：US20230362694A1
公开(公告)日：2023-11-09
申请号：US18301806
申请日：2023-04-17
发明人： Padam Dhoj Swar , Stephen Craven
CPC分类号： H04W24/08 , B60W30/18109 , B60W40/02 , B60W2510/182 , B60W2555/20
摘要： A method of communication monitoring. The method may include receiving wireless communication signal strengths measured in different areas from one or more communication devices disposed onboard a first system moving through the different areas or stationary communication devices at wayside locations in the different areas. The method may include receiving locations where the wireless communication signal strengths were measured. The method may then include determining a spatial distribution of the wireless communication signal strengths based on values of the wireless communication signal strengths that were measured and the locations where the wireless communication signal strengths were measured. The method may include changing operation of a second system based on the spatial distribution that may be determined.
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公开(公告)号：US20230328491A1
公开(公告)日：2023-10-12
申请号：US18119474
申请日：2023-03-09
发明人： Padam Dhoj Swar , Carl L. Haas , Brian Kurz , Richard S. Klemanski , Daniel McGee , James Cowan
IPC分类号： H04W4/46
CPC分类号： H04W4/46
摘要： A communication system may include communication devices configured to be onboard vehicles in a multi-vehicle system. Each of the communication devices may operate in a lead mode, a repeater mode, or a trail mode. The communication devices operating in the lead mode may transmit a command signal to control movement of the multi-vehicle system. The communication devices operating in the repeater mode may re-transmit the command signal received from the one or more communication devices operating in the lead mode. The communication devices operating in the trail mode may receive the command signal received from the one or more communication devices operating in the lead mode or in the repeater mode. Each of the communication devices may be remotely switched between the lead mode or the trail mode to the repeater mode.
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公开(公告)号：US20230128650A1
公开(公告)日：2023-04-27
申请号：US17510823
申请日：2021-10-26
发明人： Carl L. Haas , Padam Dhoj Swar , Brian Kurz , Richard S. Klemanski , James Cowan , Daniel McGee
IPC分类号： H04W4/12 , H04W24/08 , H04W24/10 , H04B17/318
摘要： A communication device and method may include at least one tuner circuit that monitors at least a first frequency channel and a second frequency channel. A controller of the radio receiver may measure a first received signal strength indicator (RSSI) value over time for the first frequency channel and a second RSSI value over time for the second frequency channel. The first and second RSSI values are based on a signal strength of radio frequency (RF) energy received on the first and second frequency channels, respectively. The controller may detect a leader portion of a message on the first frequency channel responsive to a change in the first RSSI value exceeding a step change threshold. The controller may extract, via a detector circuit, message data from a carrier wave of the RF message.
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公开(公告)号：US20230242163A1
公开(公告)日：2023-08-03
申请号：US18133391
申请日：2023-04-11
CPC分类号： B61L15/0054 , B61L15/0027 , H01Q1/3233
摘要： A device adapted for attachment to a coupler of a trailing railcar of a train includes an enclosure defining an internal compartment, a port adapted for connection to an air brake hose receiving air from a brake pipe of the train, a handle extending from the enclosure, a communication device disposed within the internal compartment of the enclosure, and at least one antenna connected to the communication device and extending at least partially through the internal compartment of the enclosure and into an internal cavity of the handle.
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公开(公告)号：US20240179502A1
公开(公告)日：2024-05-30
申请号：US18436618
申请日：2024-02-08
发明人： Brian Kurz , Richard S. Klemanski , Padam Dhoj Swar , Carl L. Haas , Daniel McGee , James Cowan
摘要： A system is provided that may include a first communication controller that may communicate with a vehicle system formed from two or more vehicles. The first communication controller may operate in different modes, including a first mode to control movement of the vehicle system without repeating any control signals communicated between the vehicles, and in a second mode to monitor different frequencies for receipt of the control signals, receive and repeat a first control signal of the control signals at a first frequency, and receive and repeats a second control signal of the control signals at a second frequency. The first communication controller may also operate in a third mode in which the first communication controller may monitor the first frequency but not the second frequency for the first control signal, receives the first control signal at the first frequency, and repeats the first control signal at the first frequency.
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公开(公告)号：US20240109564A1
公开(公告)日：2024-04-04
申请号：US18537474
申请日：2023-12-12
发明人： Padam Dhoj Swar , Carl L. Haas , Danial Rice , Rebecca W. Dreasher , Adam Hausmann , Matthew Steven Vrba , Edward J. Kuchar , James Lucas , Andrew Ryan Staats , Jerrid D. Chapman , Jeffrey D. Kernwein , Janmejay Tripathy , Stephen Craven , Tania Lindsley , Derek K. Woo , Ann K. Grimm , Scott Sollars , Phillip A. Burgart , James Allen Oswald , Shannon K. Struttmann , Stuart J. Barr , Keith Smith , Francois P. Pretorius , Craig K. Green , Kendrick Gawne , Irwin Morris , Joseph W. Gorman , Srivallidevi Muthusami , Mahesh Babu Natarajan , Jeremiah Dirnberger , Adam Franco
IPC分类号： B61L15/00
CPC分类号： B61L15/0027 , B61L15/0062 , B61L2201/00 , B61L2205/00
摘要： A method is provided that can include activating at least two wireless communication channels in parallel, between a first wireless transceiver and a second wireless transceiver. Each of the at least two wireless communication channels can operate at a different radio carrier frequency, and the first wireless transceiver may be part of a first vehicle. The method can also include transmitting, by the first wireless transceiver, common information in parallel on the at least two wireless communication channels to the second wireless transceiver and deactivating the at least two wireless communication channels.
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公开(公告)号：US11932292B2
公开(公告)日：2024-03-19
申请号：US17550026
申请日：2021-12-14
发明人： Brian Kurz , Richard S. Klemanski , Padam Dhoj Swar , Carl L. Haas , Daniel McGee , James Cowan
CPC分类号： B61L15/0018 , B61L15/0054 , B61L27/70
摘要： A system is provided that may include a first communication controller that may communicate with a vehicle system formed from two or more vehicles. The first communication controller may operate in different modes, including a first mode to control movement of the vehicle system without repeating any control signals communicated between the vehicles, and in a second mode to monitor different frequencies for receipt of the control signals, receive and repeat a first control signal of the control signals at a first frequency, and receive and repeats a second control signal of the control signals at a second frequency. The first communication controller may also operate in a third mode in which the first communication controller may monitor the first frequency but not the second frequency for the first control signal, receives the first control signal at the first frequency, and repeats the first control signal at the first frequency.
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公开(公告)号：US20230182789A1
公开(公告)日：2023-06-15
申请号：US17550026
申请日：2021-12-14
发明人： Brian Kurz , Richard S. Klemanski , Padam Dhoj Swar , Carl L. Haas , Daniel McGee , James Cowan
CPC分类号： B61L15/0018 , B61L15/0054 , B61L27/70
摘要： A system is provided that may include a first communication controller that may communicate with a vehicle system formed from two or more vehicles. The first communication controller may operate in different modes, including a first mode to control movement of the vehicle system without repeating any control signals communicated between the vehicles, and in a second mode to monitor different frequencies for receipt of the control signals, receive and repeat a first control signal of the control signals at a first frequency, and receive and repeats a second control signal of the control signals at a second frequency. The first communication controller may also operate in a third mode in which the first communication controller may monitor the first frequency but not the second frequency for the first control signal, receives the first control signal at the first frequency, and repeats the first control signal at the first frequency.
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