US5402117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of collecting traffic information, and system for performing the method
Assignee: US Philips Corp
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Filing: 1993-11-29
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Granted: 1995-03-28
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Expires: 2013-11-29
Abstract
Abstract Via a cellular radio communication system, measured values are transmitted from vehicles to a computer. The measured values are chosen so that they can be used to determine Origin-Destination matrices without infringing upon the privacy of the users.
Inventors
- 👤 Frans Zijderhand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:18
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0968; G08G1/096805; G08G1/096827; G08G1/01; G08G1/0104; G08G1/0108; G08G1/012; G08G1/0112; G08G1/0137; G08G1/0141; G08G1/0969
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
A method of collecting, processing and disseminating traffic flow information for a predefined geographic area serviced by a cellular radio system, said method comprising the steps of: a. transmitting, from a plurality of cellular-radio-equipped vehicles travelling in the predefined geographic area to a cellular radio receiver in the cellular radio system, position information periodically identifying the respective positions of said cellular-radio-equipped vehicles relative to predetermined reference positions in said predefined geographic area; b. processing the position information at a central processor in communication with the cellular radio receiver to produce an origin-destination matrix representative of the rates of travel of the cellular-radio-equipped vehicles along predefined route segments in the predefined geographic area; c. transmitting, from a cellular radio transmitter in communication with the central processor to the cellular-radio-equipped vehicles travelling in the predefined geographic area, traffic-flow-rate information derived from the origin-destination matrix.
Claim 2
Independent Claim
142 words
A method of collecting, processing and disseminating traffic flow information for a predefined geographic area serviced by a cellular radio system, said method comprising the steps of: a. transmitting, from a plurality of cellular-radio-equipped vehicles travelling in the predefined geographic area to a cellular radio receiver in the cellular radio system, position information periodically identifying the respective positions of said cellular-radio-equipped vehicles relative to predetermined reference positions in said predefined geographic area; b. processing the position information at a central processor in communication with the cellular radio receiver to produce an origin-destination matrix representative of the rates of travel of the cellular-radio-equipped vehicles along predefined route segments in the predefined geographic area; c. transmitting, from a cellular radio transmitter in communication with the central processor to the cellular-radio-equipped vehicles travelling in the predefined geographic area, traffic-flow-rate information derived from the origin-destination matrix.
Claim 3
Dependent Claim
19 words
A method as in claim 1 where the predetermined reference positions comprise road junctions in the predefined geographic area.
Claim 4
Dependent Claim
31 words
A method as in claim 2 where the position information transmitted by each of the cellular-radio-equipped vehicles includes information identifying when said vehicle is present at each of the road junctions.
Claim 5
Dependent Claim
31 words
A method as in claim 2 where the position information transmitted by each of the cellular-radio-equipped vehicles includes information representing time spent travelling a completed one of the predefined route segments.
Claim 6
Dependent Claim
138 words
A traffic information system for collecting, processing and disseminating traffic flow information for a predefined geographic area serviced by a cellular radio system, said traffic information system comprising: a. a cellular radio receiver for receiving, from a plurality of cellular-radio-equipped vehicles travelling in the predefined geographic area, position information periodically identifying the respective positions of said cellular-radio-equipped vehicles relative to predetermined reference positions in said predefined geographic area; b. a central processor in communication with the cellular radio receiver for processing the position information to produce an origin-destination matrix representative of the rates of travel of the cellular-radio-equipped vehicles along predefined route segments in the predefined geographic area; c. a cellular radio transmitter in communication with the central processor for transmitting, to the cellular-radio-equipped vehicles travelling in the predefined geographic area, traffic-flow-rate information derived from the origin-destination matrix.
Claim 7
Dependent Claim
138 words
A traffic information system for collecting, processing and disseminating traffic flow information for a predefined geographic area serviced by a cellular radio system, said traffic information system comprising: a. a cellular radio receiver for receiving, from a plurality of cellular-radio-equipped vehicles travelling in the predefined geographic area, position information periodically identifying the respective positions of said cellular-radio-equipped vehicles relative to predetermined reference positions in said predefined geographic area; b. a central processor in communication with the cellular radio receiver for processing the position information to produce an origin-destination matrix representative of the rates of travel of the cellular-radio-equipped vehicles along predefined route segments in the predefined geographic area; c. a cellular radio transmitter in communication with the central processor for transmitting, to the cellular-radio-equipped vehicles travelling in the predefined geographic area, traffic-flow-rate information derived from the origin-destination matrix.
Claim 8
Dependent Claim
21 words
A traffic information system as in claim 5 where the predetermined reference positions comprise road junctions in the predefined geographic area.
Claim 9
Dependent Claim
33 words
A traffic information system as in claim 6 where the position information transmitted by each of the cellular-radio-equipped vehicles includes information identifying when said vehicle is present at each of the road junctions.
Claim 10
Dependent Claim
33 words
A traffic information system as in claim 6 where the position information transmitted by each of the cellular-radio-equipped vehicles includes information representing time spent travelling a completed one of the predefined route segments.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-27 | 1998-09-26 | 1999-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-27 | 2002-09-26 | 2003-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-27 | 2006-09-26 | 2007-03-28 | $7700.00 | Window Closed / Lapsed |