Speed limit indicator and method for displaying speed and the relevant speed limit
DC CAFC
First Claim
Patent Images
1. A speed limit indicator comprising:
- a colored display to delineate which speed readings are in violation of the speed limit at a vehicle'"'"'s current location;
a speedometer integrally attached to said colored display; and
a display controller connected to said colored display, wherein said display controller adjusts said colored display independently of said speedometer to continuously update the delineation of which speed readings are in violation of the speed limit at a vehicle'"'"'s present location.
3 Assignments
Litigations
3 Petitions
Accused Products
Abstract
Speed limit indicators and methods for determining speed, the relevant speed limit, and displaying same make it easy for the driver of a vehicle to compare his current speed with the legal limit for the location in which he is traveling. This eliminates the need for the driver to take his eyes off the road to look for speed limit signs, thereby reducing the chance of an accident, and resolves any confusion that might exist as to what the current legal limit is. An audible warning of excessive speed reduces the amount of time the driver needs to spend examining the speedometer.
70 Citations
20 Claims
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1. A speed limit indicator comprising:
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a colored display to delineate which speed readings are in violation of the speed limit at a vehicle'"'"'s current location;
a speedometer integrally attached to said colored display; and
a display controller connected to said colored display, wherein said display controller adjusts said colored display independently of said speedometer to continuously update the delineation of which speed readings are in violation of the speed limit at a vehicle'"'"'s present location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
a needle;
an axle having opposing ends with one end attached to said needle; and
a speedometer cable having opposing ends with one end attached to said axle.
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5. The speed limit indicator as defined in claim 4, wherein said speedometer further comprises:
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a backplate;
plurality of speed denoting markings affixed to said backplate; and
a housing enclosing said backplate.
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6. The speed limit indicator as defined in claim 1, wherein said speedometer comprises a liquid crystal display.
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7. The speed limit indicator as defined in claim 1, further comprising:
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an electrically conductive wire having opposing ends with one end connected to said display controller; and
a speed limit locating device connected to said opposing end of said wire.
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8. The speed limit indicator as defined in claim 7, wherein said speed limit locating device comprises:
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a global positioning receiver; and
a database of locations and their corresponding speed limits which is accessible by said display controller.
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9. The speed limit indicator as defined in claim 1, wherein said display controller further comprises a tone generator.
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20. A method of determining speed, the relevant speed limit, and displaying same, which comprises the steps of:
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uploading current information to regional speed limit database;
determining vehicle location and speed;
obtaining speed limit for said vehicle location from said database;
comparing vehicle speed to said speed limit;
generating tone if said vehicle speed exceeds said speed limit;
sending speed limit to display control unit; and
modifying the limit indicator as defined in claim 1 to reflect which speeds are below said speed limit and which speeds exceed said speed limit.
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10. A speed limit indicator comprising:
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a global positioning system receiver;
a display controller connected to said global positioning system receiver, wherein said display controller adjusts a colored display in response to signals from said global positioning system receiver to continuously update the delineation of which speed readings are in violation of the speed limit at a vehicle'"'"'s present location; and
a speedometer integrally attached to said colored display. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
a needle;
an axle having opposing ends with one end attached to said needle; and
a speedometer cable having opposing ends with one end attached to said axle.
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16. The seed limit indicator as defined in claim 15, wherein said speedometer further comprises:
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a backplate;
a plurality of speed denoting markings affixed to said backplate; and
a housing enclosing said backplate.
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17. The speed limit indicator as defined in claim 14, wherein said display controller rotates said colored filter independently of said speedometer to continuously update the delineation of which speed readings are in violation of the speed limit at a vehicle'"'"'s present location.
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18. The speed limit indicator as defined in claim 10, wherein said speedometer comprises a liquid crystal display.
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19. The speed limit indicator as defined in claim 10, wherein said display controller further comprises a tone generator.
Specification
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Litigation Data
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Current AssigneeCuozzo Speed Technologies LLC (Empire IP LLC)
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Original AssigneeGiuseppe A. Cuozzo
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InventorsCuozzo, Giuseppe A.
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Primary Examiner(s)TONG, NINA C
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Application NumberUS10/100,378Time in Patent Office883 DaysField of Search340/441, 340/905, 340/438, 340/901, 340/988, 701/117, 701/119, 701/202US Class Current340/441CPC Class CodesG01D 7/00 Indicating measured valuesG01P 1/08 Arrangements of scales, poi...G01P 1/103 by comparing the value of t...
