Patent US5459824A successfully refreshed from Google Patents.
US5459824A
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Navigation apparatus capable of changing color scheme of a displayed picture
Assignee: Pioneer Corp
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Filing: 1995-03-13
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Granted: 1995-10-17
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Expires: 2015-03-13
Abstract
Abstract A plurality of preset palette data are stored in a ROM. User palette data are input through an RS232C interface and stored in a nonvolatile RAM. Based on an instruction from a user and other information such as a signal indicating the status of an illumination switch, a MPU selects one of the palette data and sets the selected palette data in a look-up table. Image data representing a map, present position, etc. is converted into color data by the look-up table, and then to an analog video signal for a color CRT. A display can be made using the palette data prepared by the user.
Inventors
- 👤 Takashi Kashiwazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:43
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/26; G01C21/34; G01C21/36; G01C21/3667; G01C21/367; G01C21/3673; G09; G09B; G09B29/00; G09B29/10; G09B29/106
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A navigation apparatus which displays a map and a present position of an associated vehicle, said apparatus comprising: a first memory for storing image data; a second memory for storing a plurality of sets of color conversion information; a selection unit for allowing a user to select one of a plurality of sets of color conversion information; said sets of color conversion information including ROM palette data and user palette data; a conversion unit for converting the image data into color data based on the user selected set of color conversion information; and a display for displaying an image based on the color data.
Claim 2
Dependent Claim
104 words
A navigation apparatus which displays a map and a present position of an associated vehicle, said apparatus comprising: a first memory for storing image data; a second memory for storing a plurality of sets of color conversion information; a selection unit for allowing a user to select one of a plurality of sets of color conversion information; said sets of color conversion information including ROM palette data and user palette data; a conversion unit for converting the image data into color data based on the user selected set of color conversion information; and a display for displaying an image based on the color data.
Claim 3
Dependent Claim
54 words
The apparatus of claim 1, wherein each of the plurality of sets of color conversion information includes a set of color conversion information for daytime and a set for night-time, and the selection unit selects the one set of color conversion information by making judgments including a judgment whether it is daytime or night-time.
Claim 4
Dependent Claim
69 words
The apparatus of claim 1, wherein each of the plurality of sets of color conversion information includes a set of color conversion information to be used when the associated vehicle is moving and a set that to be used when it is stopped, and the selection unit selects the one set of color conversion information by making judgments including a judgment whether the associated vehicle is moving or stopped.
Claim 5
Dependent Claim
32 words
The apparatus of claim 1, wherein each of the plurality of sets of color conversion information includes a set of color conversion information for map information and a set for service information.
Claim 6
Dependent Claim
30 words
The apparatus of claim 1, further comprising a receiver unit for receiving color conversion information from said user palette data, and for transferring the received information to the second memory.
Claim 7
Dependent Claim
18 words
The apparatus of claim 1, wherein the conversion unit comprises a memory for storing a color conversion table.
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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) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |