Navigation pad and method of using same
First Claim
Patent Images
1. A handheld electronic device, comprising:
- an outer housing having a front face;
a display screen in the front face;
a navigation touch pad mounted in the front face of the housing and adapted to provide a user input for controlling the electronic device, the navigation touch pad having a circular configuration with a center and a circumference;
the touch pad having a plurality of touch sensors at predetermined locations about the area of the touch pad adapted to detect touching by a user'"'"'s finger and to provide an output control signal in response to touch detection, the touch sensors arranged at spaced angular intervals in a generally circular path around the touch pad and are adapted to detect movement of a finger in a corresponding circular path;
a plurality of light sources defining a single plane and extending linearly from the center to the circumference of the navigation touch pad and associated with each touch sensor, the light sources positioned to extend linearly and radially from the center to the circumference of the navigation touch pad at spaced intervals in the generally circular path, the light sources comprising light pipes, each light pipe linearly extending and continuously spanning from the center to the circumference of the navigation touch pad at spaced intervals in the generally circular path; and
a control unit adapted to activate each light source in response to receipt of an output control signal from the touch sensor associated with the light source.
2 Assignments
0 Petitions
Accused Products
Abstract
A handheld electronic device has an outer face in which a user display and a navigation touch pad are located. The touch pad is adapted to provide a user input for controlling at least one function of the electronic device. A plurality of touch sensors are located at predetermined locations about the area of the touch pad and detect touching by a user'"'"'s finger in order to provide an output control signal. A light source is associated with each touch sensor. A control unit receives input from the touch sensors and activates each light source in turn as the associated touch sensor is touched by a user, so that the user receives visual feedback as they are controlling the device.
-
Citations
14 Claims
-
1. A handheld electronic device, comprising:
-
an outer housing having a front face; a display screen in the front face; a navigation touch pad mounted in the front face of the housing and adapted to provide a user input for controlling the electronic device, the navigation touch pad having a circular configuration with a center and a circumference; the touch pad having a plurality of touch sensors at predetermined locations about the area of the touch pad adapted to detect touching by a user'"'"'s finger and to provide an output control signal in response to touch detection, the touch sensors arranged at spaced angular intervals in a generally circular path around the touch pad and are adapted to detect movement of a finger in a corresponding circular path; a plurality of light sources defining a single plane and extending linearly from the center to the circumference of the navigation touch pad and associated with each touch sensor, the light sources positioned to extend linearly and radially from the center to the circumference of the navigation touch pad at spaced intervals in the generally circular path, the light sources comprising light pipes, each light pipe linearly extending and continuously spanning from the center to the circumference of the navigation touch pad at spaced intervals in the generally circular path; and a control unit adapted to activate each light source in response to receipt of an output control signal from the touch sensor associated with the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of operating a navigation touch pad mounted on a personal electronic device, the touch pad having a circular configuration with a center and a circumference, comprising:
-
receiving finger or pointer touch input in a circular path about the touch pad; detecting location and movement of the finger using a series of touch sensors positioned in a circular path on the touch pad; lighting up a series of light sources around the touch pad in sequence as a series of touch sensors each associated with a respective light source receives the finger or pointer touch input, the light sources defining a single plane and positioned to extend linearly and radially from the center to the circumference of the navigation touch pad at spaced intervals in a generally circular path, the light sources comprising light pipes, each light pipe linearly extending and continuously spanning from the center to the circumference of the navigation touch pad at spaced intervals in the generally circular path; and controlling at least one function of the electronic device in response to the detection by the touch sensors. - View Dependent Claims (13, 14)
-
Specification