Method for data communication between a vehicle and a remote terminal
First Claim
1. An apparatus for validating with minimal delay data transmitted to a data bus of a vehicle from a remote location and data transmitted from the data bus of the vehicle to a remote location, wherein said apparatus comprises:
- a local transceiver in operable electrical communication with the data bus of the vehicle, wherein said local transceiver transmits data from the data bus to a remote location and receives data transmitted to the data bus from a remote location; and
a local processor in electrical communication with both said local transceiver and the data bus of the vehicle, wherein data output by said local processor to the data bus and data transmitted by the local transceiver to a remote location are also received by said local processor as false data, wherein said local processor analyzes data received by said local processor and prevents propagation of false data to either the data bus or to the remote location, and wherein said local processor analyzes the data one bit at a time such that data may be transmitted from and to the data bus with minimal delay.
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Accused Products
Abstract
An apparatus and methods are provided for data communications associated with a vehicle. The apparatus preferably includes at least one electronic subsystem associated with the vehicle and a plurality of electrical conductors connected to the at least one electronic subsystem and associated with the vehicle. A vehicle data communications protocol converter is preferably connected to the plurality of electrical conductors for converting a first data communications protocol associated with data communications along the plurality of electrical conductors to a second data communications protocol such as a local-area infrared or an RF data communications protocol. The apparatus also preferably includes a transceiver connected to the data communications protocol converter for transmitting the second data communications protocol from the vehicle and receiving the data communications protocol from a remote data communications terminal or another portion of the vehicle.
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Citations
34 Claims
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1. An apparatus for validating with minimal delay data transmitted to a data bus of a vehicle from a remote location and data transmitted from the data bus of the vehicle to a remote location, wherein said apparatus comprises:
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a local transceiver in operable electrical communication with the data bus of the vehicle, wherein said local transceiver transmits data from the data bus to a remote location and receives data transmitted to the data bus from a remote location; and a local processor in electrical communication with both said local transceiver and the data bus of the vehicle, wherein data output by said local processor to the data bus and data transmitted by the local transceiver to a remote location are also received by said local processor as false data, wherein said local processor analyzes data received by said local processor and prevents propagation of false data to either the data bus or to the remote location, and wherein said local processor analyzes the data one bit at a time such that data may be transmitted from and to the data bus with minimal delay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for validating with minimal delay data transmitted to a data bus of a vehicle from a remote location and data transmitted from the data bus of the vehicle to a remote location in a system where data transmitted to the data bus may also be received as false data at the remote location and data transmitted to a remote location from the data bus may also be received as false data at the data bus, wherein said method comprises steps of:
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analyzing data transmitted to and from the data bus one bit at a time such that data may be transmitted to and from the data bus with minimal delay; and preventing propagation of false data to the remote location when data is transmitted to the data bus and propagation of false data to the data bus when data is transmitted from the data bus to the remote location. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer program product for validating with minimal delay data transmitted to a data bus of a vehicle from a remote location and data transmitted from the data bus of the vehicle to a remote location in a system where data transmitted to the data bus may also be received as false data at the remote location and data transmitted to a remote location from the data bus may also be received as false data at the data bus, wherein the computer program product comprises:
a computer readable storage medium having computer readable program code means embodied in said medium, said computer-readable program code means comprising; first computer-readable program code means for analyzing data transmitted to and from the data bus one bit at a time such that data may be transmitted to and from the data bus with minimal delay; and second computer-readable program code means for preventing propagation of false data to the remote location when data is transmitted to the data bus and propagation of false data to the data bus when data is transmitted from the data bus to the remote location. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for establishing a data communication link between a data bus of a vehicle having a transceiver for receiving data and a remote interrogation device where unwanted signals may be received by the data bus and corrupt data on the data bus, wherein said method comprises the steps of:
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connecting the local transceiver and the data bus in a data transfer mode such that the data bus may receive data transmitted by the remote interrogation device; and isolating the local transceiver from the data bus in an idle mode such that unwanted signals received by the transceiver are not input to the data bus. - View Dependent Claims (34)
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Specification