METHOD AND APPARATUS FOR DETECTING AND RESPONDING TO AN ABSENCE OF JOURNEY-RELATED INFORMATION
First Claim
Patent Images
1. A method comprising:
- at a terrestrial vehicle;
detecting an absence of received radio frequency transmissions that are compliant with a first roadway information service;
in response to detecting an absence of received radio frequency transmissions that are compliant with the first roadway information service, automatically using substitute roadway information; and
automatically providing notice to at least a driver of the terrestrial vehicle regarding at least one of;
the absence of received radio frequency transmissions; and
the automatic use of substitute roadway information.
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Abstract
In a vehicle equipped with a dedicated short-range two-way communications system to acquire and otherwise participate in a roadway information service, method and apparatus are provided to detect (301) an absence of the availability of such a service and to respond by substituting (302) roadway information from other sources and to provide notice (303) to the driver regarding the absence of realtime service information and/or the present use of substituted roadway information.
16 Citations
40 Claims
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1. A method comprising:
at a terrestrial vehicle;
detecting an absence of received radio frequency transmissions that are compliant with a first roadway information service;
in response to detecting an absence of received radio frequency transmissions that are compliant with the first roadway information service, automatically using substitute roadway information; and
automatically providing notice to at least a driver of the terrestrial vehicle regarding at least one of;
the absence of received radio frequency transmissions; and
the automatic use of substitute roadway information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An apparatus for use in a terrestrial vehicle comprising:
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detection means for detecting an absence of received radio frequency transmissions that are compliant with a first roadway information service;
information means responsive to the detection means for automatically providing substitute roadway information when roadway information is not available from the first roadway information service;
notification means operably coupled to at least one of the detection means and the information means for providing notice to at least a driver of the terrestrial vehicle regarding at least one of the absence of received radio frequency transmissions and the automatic use of substitute roadway information. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40)
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Specification