Navigation device and method for displaying alternative routes
First Claim
Patent Images
1. A portable personal navigation device with an integral GPS receiver, programmed with a map database and navigation software that (a) enables a route to be planned and (b) generates a normal navigation mode screen on a touch screen display on the device, in which the current position and route guidance is shown on a road map;
- and in which the feature of using a very large touch screen area associated with a given soft key is consistently deployed to select core functions of the navigation software, unlike in stylus-based applications;
the user selects core functions of the navigation software by touching a key, button or icon shown on the touch screen display with a finger.
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Accused Products
Abstract
A navigation device has a route re-calculation function. This is activated by the user touching the screen to task away from the normal navigation map mode to a menu screen which displays multiple types of route re-calculation options.
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Citations
15 Claims
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1. A portable personal navigation device with an integral GPS receiver, programmed with a map database and navigation software that (a) enables a route to be planned and (b) generates a normal navigation mode screen on a touch screen display on the device, in which the current position and route guidance is shown on a road map;
and in which the feature of using a very large touch screen area associated with a given soft key is consistently deployed to select core functions of the navigation software, unlike in stylus-based applications;
the user selects core functions of the navigation software by touching a key, button or icon shown on the touch screen display with a finger.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product for a portable personal navigation device with an integral GPS receiver and programmed with a map database and the computer program product, the computer program product (a) enabling a route to be planned and (b) generating a normal navigation mode screen on a touch screen display fixed in a front face of the device, in which the current position and route guidance is shown on a road map;
and in which the feature of using a very large touch screen area associated with a given soft key is consistently deployed to select core functions of the navigation software, unlike in stylus-based application;
the user selects core functions of the navigation software by touching a key, button or icon shown on the touch screen display with a finger.- View Dependent Claims (13)
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14. A method of operating a portable personal navigation device with an integral GPS receiver, programmed with a map database and navigation software that (a) enables a route to be planned and (b) generates a normal navigation mode screen on a touch screen display fixed in a front face of the device, in which the current position and route guidance is shown on a road map;
and in which the feature of using a very large touch screen area associated with a given soft key is consistently deployed to select core functions of the navigation software, unlike in stylus-based application;
comprising the step of;
the user selecting with a finger a core function of the navigation software by touching a key, button or icon shown on the touch screen display.- View Dependent Claims (15)
Specification