US6574551B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Autoscaling of recommended route
Assignee: DIDI HK Science and Technology Ltd
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Filing: 1998-06-19
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Granted: 2003-06-03
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Expires: 2018-06-19
Abstract
Abstract A navigation system is used to assist a user in proceeding from a current location to a desired destination. The navigation system includes a processor for storing a database of roads and a system for determining the current position of a vehicle in relation to the database. A user can select a desired destination in the database by using an input device which sends the selection to the processor. The navigation system determines a route to the selected destination. An output device displays the route and the vehicle's current position by automatically scaling the display to include the route and the current position.
Inventors
- 👤 Kenneth G. Maxwell
- 👤 Jeffrey A. Millington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:06
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/26; G01C21/34; G01C21/36; G01C21/3667; G01C21/367
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
90 words
A navigation system comprising: a database of roads; a system for determining a position of the navigation system relative to the database; a system for determining a route to a destination in said database; a display for displaying said route and said position, said display automatically scaling said display to include said route and said position when said position is not on said route; and means for determining a distance from said position to said route wherein said display displays said distance when said position is not on said route.
Claim 2
Dependent Claim
90 words
A navigation system comprising: a database of roads; a system for determining a position of the navigation system relative to the database; a system for determining a route to a destination in said database; a display for displaying said route and said position, said display automatically scaling said display to include said route and said position when said position is not on said route; and means for determining a distance from said position to said route wherein said display displays said distance when said position is not on said route.
Claim 3
Dependent Claim
53 words
A navigation system of claim 1 wherein said position includes at least a first position and a second position, said system for determining said route based on said first position and said display being automatically scaled to display said route and said second position, said first position being different than said second position.
Claim 4
Dependent Claim
46 words
A navigation system of claim 2 wherein said first position is a location of a vehicle when said destination is selected and said second position is a location of the vehicle when said system for determining said route has completed determining said route to said destination.
Claim 5
Dependent Claim
16 words
A navigation system of claim 2 further wherein said second position is not on said route.
Claim 6
Dependent Claim
26 words
The navigation system of claim 1 wherein the means for determining a distance determines the distance from the position to a nearest point on the route.
Claim 7
Dependent Claim
167 words
A navigation system comprising: a database of roads; a system for determining a position of the navigation system relative to the database; a system for determining a route to a destination in said database; a display for displaying said route and said position, said display automatically scaling said display to include said route and said position wherein said position includes at least a first position comprising a location of a vehicle when said destination is selected and a second position comprising a location of the vehicle when said system for determining said route has completed determining said route to said destination and wherein said system for determining said route is based on said first position and said display is automatically scaled to display said route and said second position, said first position being different than said second position, and wherein said second position is not on said route; and means for determining a distance from said second position to said route wherein said display displays said distance.
Claim 8
Dependent Claim
167 words
A navigation system comprising: a database of roads; a system for determining a position of the navigation system relative to the database; a system for determining a route to a destination in said database; a display for displaying said route and said position, said display automatically scaling said display to include said route and said position wherein said position includes at least a first position comprising a location of a vehicle when said destination is selected and a second position comprising a location of the vehicle when said system for determining said route has completed determining said route to said destination and wherein said system for determining said route is based on said first position and said display is automatically scaled to display said route and said second position, said first position being different than said second position, and wherein said second position is not on said route; and means for determining a distance from said second position to said route wherein said display displays said distance.
Claim 9
Dependent Claim
27 words
The navigation system of claim 6 wherein the means for determining a distance determines the distance from the second position to a nearest point on the route.
Claim 10
Independent Claim
105 words
A method for automatically scaling a display for a navigation system including the steps of: (a) determining a first position of the display relative to a database of roads; (b) selecting a destination in the database; (c) calculating a route to the destination in the database; (d) calculating a map scale including said route and said first position when the first position is not on said route; (e) displaying said route and said first position based on said map scale when said first position is not on said route; and (f) determining a distance from said route to said first position and displaying said distance.
Claim 11
Independent Claim
105 words
A method for automatically scaling a display for a navigation system including the steps of: (a) determining a first position of the display relative to a database of roads; (b) selecting a destination in the database; (c) calculating a route to the destination in the database; (d) calculating a map scale including said route and said first position when the first position is not on said route; (e) displaying said route and said first position based on said map scale when said first position is not on said route; and (f) determining a distance from said route to said first position and displaying said distance.
Claim 12
Dependent Claim
64 words
The method of claim 8 further including the step of determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated.
Claim 13
Dependent Claim
27 words
The method of claim 8 wherein said step (f) includes the step of determining the distance between the first position and a nearest point on the route.
Claim 14
Independent Claim
145 words
A method for automatically scaling a display for a navigation system including the steps of: (a) determining a first position of the display relative to a database of roads; (b) selecting a destination in the database; (c) calculating a route to the destination in the database; (d) calculating a map scale including said route and said first position; (e) determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated; (f) determining said route based on said first position and calculating said map scale based on said second position; (g) displaying said route and said second position based on said map scale.
Claim 15
Independent Claim
145 words
A method for automatically scaling a display for a navigation system including the steps of: (a) determining a first position of the display relative to a database of roads; (b) selecting a destination in the database; (c) calculating a route to the destination in the database; (d) calculating a map scale including said route and said first position; (e) determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated; (f) determining said route based on said first position and calculating said map scale based on said second position; (g) displaying said route and said second position based on said map scale.
Claim 16
Dependent Claim
22 words
The method of claim 11 further including the step of displaying said route and said second position based on said map scale.
Claim 17
Dependent Claim
24 words
The method of claim 11 further including the step of determining a distance from said route to said second position and displaying said distance.
Claim 18
Dependent Claim
40 words
The method of claim 11 further including the steps of: (h) displaying at a first map scale prior to said step (g), and (i) displaying at a second map scale different from said first map scale during said step (g).
Claim 19
Dependent Claim
14 words
The method of claim 11 wherein the second position is not on the route.
Claim 20
Dependent Claim
142 words
A navigation system comprising: an input device for selecting a desired destination; a processor for storing a database of roads and for receiving input from said input device; a system for determining a first position of the navigation system relative to the database; a system for calculating a route to the desired destination in the database; means for calculating a map scale that includes said route and said first position when said first position is not on said route; an output device for displaying said route and said first position when said first position is not on said route, said output device being automatically scaled to display said route and said first position simultaneously; and means for determining a distance from said first position to said route, said distance being displayed via said output device with said route and said first position.
Claim 21
Dependent Claim
142 words
A navigation system comprising: an input device for selecting a desired destination; a processor for storing a database of roads and for receiving input from said input device; a system for determining a first position of the navigation system relative to the database; a system for calculating a route to the desired destination in the database; means for calculating a map scale that includes said route and said first position when said first position is not on said route; an output device for displaying said route and said first position when said first position is not on said route, said output device being automatically scaled to display said route and said first position simultaneously; and means for determining a distance from said first position to said route, said distance being displayed via said output device with said route and said first position.
Claim 22
Dependent Claim
64 words
A navigation system of claim 16 further including means for determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated.
Claim 23
Independent Claim
102 words
A method for automatically scaling a display for a navigation system including the steps of: determining a first position of the navigation system relative to a database of roads; calculating a route in the database; calculating a second position of the navigation system relative to the database of roads, subsequent to the first position; determining a map scale which would ensure that the route and first position can both be displayed simultaneously; changing the map scale to ensure that the route and second position can both be displayed simultaneously; and displaying said route and said second position based on said map scale.
Claim 24
Independent Claim
102 words
A method for automatically scaling a display for a navigation system including the steps of: determining a first position of the navigation system relative to a database of roads; calculating a route in the database; calculating a second position of the navigation system relative to the database of roads, subsequent to the first position; determining a map scale which would ensure that the route and first position can both be displayed simultaneously; changing the map scale to ensure that the route and second position can both be displayed simultaneously; and displaying said route and said second position based on said map scale.
Claim 25
Dependent Claim
14 words
The method of claim 18 wherein the second position is not on the route.
Claim 26
Dependent Claim
168 words
A navigation system comprising: an input device for selecting a desired destination; a processor for storing a database of roads and for receiving input from said input device; a system for determining a first position of the navigation system relative to the database; a system for calculating a route to the desired destination in the database; means for determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated; an output device for displaying said route and said second position, said output device being automatically scaled to display said route and said second position simultaneously wherein said system for calculating said route calculates said route based on said first position and said output device is automatically scaled to display said route and said second position.
Claim 27
Dependent Claim
168 words
A navigation system comprising: an input device for selecting a desired destination; a processor for storing a database of roads and for receiving input from said input device; a system for determining a first position of the navigation system relative to the database; a system for calculating a route to the desired destination in the database; means for determining a second position relative to the database wherein said first position is different than said second position such that said first position corresponds to a first location of a vehicle when the destination is selected and said second position corresponds to a second location of the vehicle once said route has been calculated; an output device for displaying said route and said second position, said output device being automatically scaled to display said route and said second position simultaneously wherein said system for calculating said route calculates said route based on said first position and said output device is automatically scaled to display said route and said second position.
Claim 28
Dependent Claim
22 words
A navigation system of claim 20 further including means for calculating a map scale that includes said route and said second position.
Claim 29
Dependent Claim
35 words
A navigation system of claim 21 further including means for determining a distance from said second position to said route, said distance being displayed via said output device with said route and said second position.
Claim 30
Dependent Claim
15 words
The navigation system of claim 20 wherein the second position is not on the route.
References Cited (Backward Citations)
US5121326A
Cited
US5359527A
Cited
US5371497A
Cited
US5497149A
Cited
JPH0869515A
Cited
US5774073A
Cited
US5689252A
Cited
EP0720003A1
Cited
JPH08305283A
Cited
US5902349A
Cited
US6049753A
Cited
US5951622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-02 | 2006-12-02 | 2007-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-02 | 2010-12-02 | 2011-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-02 | 2014-12-02 | 2015-06-03 | $7700.00 | Window Closed / Lapsed |