Patent JPS6163930A successfully refreshed from Google Patents.
US4954959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigation system
Assignee: Aisin AW Co Ltd
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Filing: 1988-12-27
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Granted: 1990-09-04
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Expires: 2008-12-27
Abstract
Abstract A first external storage device which may be a CD stores data representing standard map of a particular area and that required for guidance, and a second external storage device which may be an IC card stores individual data which cannot be complemented by said data representing the standard map and said guidance data. Since the data is stored in both CD and IC card, the number of data can be reduced. This makes the operation simpler and enables a data that meets the demand of a user to be selectively supplied to the user. In consequence, guided navigation is made possible from any starting point to a destination, and data updating can be made relatively easy.
Inventors
- 👤 Shuzo Moroto
- 👤 Masao Kawai
- 👤 Shoji Yokoyama
- 👤 Koji Kobayashi
- 👤 Koji Sumiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:03
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0968; G08G1/0969; G01; G01C; G01C21/00; G01C21/38; G01C21/3863; G01C21/387; G01C21/3878
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
114 words
A navigation system for a vehicle comprising: a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; and second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said supplemented guidance data via said output means.
Claim 2
Dependent Claim
114 words
A navigation system for a vehicle comprising: a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; and second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said supplemented guidance data via said output means.
Claim 3
Dependent Claim
32 words
A navigation system according to claim 1, wherein said second external storage device comprises one of a floppy disk, an optical disk, a magnetic tape, an IC card and an optical card.
Claim 4
Dependent Claim
58 words
A navigation system according to claim 1, wherein said CPU means prepares a comparison data list from said first and second guidance data stored in each of said first and second external storage means, and selectively operates said first and second guidance data stored in said first and second external storage means based on said comparison data list.
Claim 5
Dependent Claim
51 words
A navigation system according to claim 1, wherein said second guidance data includes a comparison data list of said first and second guidance data, and said CPU means selectively operates said first and second guidance data stored in said first and second external storage means based upon said comparison data list.
Claim 6
Dependent Claim
48 words
A navigation system according to claim 1, wherein said second guidance data includes a table for coordinating said first and second guidance data, and said CPU means selectively operates said first and second guidance data stored in said first and second external storage device based upon said table.
Claim 7
Dependent Claim
35 words
A navigation system according to claim 1, wherein said first guidance data corresponds to a larger geographical area and said second guidance data corresponds to said smaller geographical area contained within said larger geographical area.
Claim 8
Dependent Claim
20 words
A navigation system according to claim 1 including receiving means for inputting said second guidance data from an external source.
Claim 9
Dependent Claim
14 words
A navigation system according to claim 7, wherein said receiving means includes a modem.
Claim 10
Dependent Claim
45 words
A navigation system according to claim 1, wherein said second external storage means includes removable media and said second guidance data can be replaced by new second guidance data by replacing said removable media with a new removable media containing said new second guidance data.
Claim 11
Dependent Claim
129 words
A navigation system for a vehicle comprising: present position means for determining a present position of said vehicle; first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data association with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information together with said present position via said output means based on said supplemented guidance data.
Claim 12
Dependent Claim
129 words
A navigation system for a vehicle comprising: present position means for determining a present position of said vehicle; first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data association with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information together with said present position via said output means based on said supplemented guidance data.
Claim 13
Dependent Claim
16 words
A navigation system according to claim 10 wherein said present position means comprises a GPS receiver.
Claim 14
Dependent Claim
16 words
A navigation system according to claim 10 wherein said present position means comprises a beacon receiver.
Claim 15
Dependent Claim
20 words
A navigation system according to claim 10 wherein said present position means comprises a geomagnetic sensor and a distance sensor.
Claim 16
Dependent Claim
20 words
A navigation system according to claim 10 wherein said present position means comprises a distance sensor and a steering sensor.
Claim 17
Dependent Claim
159 words
A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a present position means for determining a present position of said vehicle; a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said guidance data; output means for outputting guidance information, including a display means for displaying visual information; and CPU means for receiving said first and second guidance data from said first and second external storage means, setting a guide route based on said starting point and said destination including supplementing said first guidance data by said second guidance data, and outputting said guide route as said guidance information together with said present position data via said output means.
Claim 18
Dependent Claim
159 words
A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a present position means for determining a present position of said vehicle; a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said guidance data; output means for outputting guidance information, including a display means for displaying visual information; and CPU means for receiving said first and second guidance data from said first and second external storage means, setting a guide route based on said starting point and said destination including supplementing said first guidance data by said second guidance data, and outputting said guide route as said guidance information together with said present position data via said output means.
Claim 19
Dependent Claim
146 words
A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data association with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, setting coordinates of a plurality of points from said starting point to said destination including supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said set coordinates via said output means at each of said points up to said destination.
Claim 20
Dependent Claim
146 words
A navigation system for a vehicle comprising: input means for inputting a starting point and destination; a first external storage means for storing first guidance data including road and intersection data; a second external storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data association with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said first and second external storage means, setting coordinates of a plurality of points from said starting point to said destination including supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said set coordinates via said output means at each of said points up to said destination.
Claim 21
Dependent Claim
110 words
A navigation system for a vehicle comprising: an external storage means for storing guidance data including road and intersection data; an internal storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said external and internal storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said supplemented guidance data via said output means.
Claim 22
Dependent Claim
110 words
A navigation system for a vehicle comprising: an external storage means for storing guidance data including road and intersection data; an internal storage means for storing second guidance data; said second guidance data being linked to said first guidance data and including more detailed road and intersection data associated with a smaller geographic area when compared to said first guidance data; output means for outputting guidance information; and CPU means for receiving said first and second guidance data from said external and internal storage means, supplementing said first guidance data by said second guidance data, and outputting said guidance information based on said supplemented guidance data via said output means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |