Wireless hand-held electronic device for manipulating an object on a display
First Claim
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1. A wireless hand-held pointing device for manipulating an object on a display, the pointing device comprising:
- an accelerometer responsive to tilt of the pointing device in a plurality of axes wherein;
the tilt signals are measured as a response of the projection of static gravity on the tilted accelerometer;
accelerometer tilt signal generation does not rely on a detector selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector to generate a movement signal;
the accelerometer is most sensitive to tilt when the accelerometer is perpendicular to gravity; and
the tilt signal comprises a pitch signal and a roll signal where pitch and roll are rotations about two perpendicular axes orthogonal to the gravitational vector;
a linear input element that generates an electrical signal responsive to user input, wherein the linear input element does not use a detector selected from the group of an acoustic detector, a magnetic detector, and an optical detector to generate the electrical signal and the linear input element generates the electrical signal of a magnitude controlled by the user;
an electronic circuit connected to the accelerometer and connected to the linear input element wherein the circuit;
comprises a control unit, a memory unit, a communications unit, and a battery, wherein the control unit further comprises a micro-controller, a digital signal processor, and a machine readable storage device;
calculates the pitch and the roll from the accelerometer tilt signal without using input from a device selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector;
calculates pitch and roll according to the following equations;
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Abstract
A hand-held pointing device for manipulating an object on a display is disclosed. The device is constructed from at least one accelerometer and at least one linear input element. The accelerometer or accelerometers generate a pitch signal and a roll signal. These pitch and roll signals are used to determine a position on a display.
33 Citations
20 Claims
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1. A wireless hand-held pointing device for manipulating an object on a display, the pointing device comprising:
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an accelerometer responsive to tilt of the pointing device in a plurality of axes wherein; the tilt signals are measured as a response of the projection of static gravity on the tilted accelerometer; accelerometer tilt signal generation does not rely on a detector selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector to generate a movement signal; the accelerometer is most sensitive to tilt when the accelerometer is perpendicular to gravity; and the tilt signal comprises a pitch signal and a roll signal where pitch and roll are rotations about two perpendicular axes orthogonal to the gravitational vector; a linear input element that generates an electrical signal responsive to user input, wherein the linear input element does not use a detector selected from the group of an acoustic detector, a magnetic detector, and an optical detector to generate the electrical signal and the linear input element generates the electrical signal of a magnitude controlled by the user; an electronic circuit connected to the accelerometer and connected to the linear input element wherein the circuit; comprises a control unit, a memory unit, a communications unit, and a battery, wherein the control unit further comprises a micro-controller, a digital signal processor, and a machine readable storage device; calculates the pitch and the roll from the accelerometer tilt signal without using input from a device selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector; calculates pitch and roll according to the following equations; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless device for manipulating a graphical object in Cartesian space on a two-dimensional display, the device comprising:
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an accelerometer responsive to tilt of the device in a plurality of axes wherein; the tilt signals are measured as a response of the projection of static gravity on the tilted accelerometer; tilt signal generation does not rely on a detector selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector to generate a movement signal; the accelerometer is most sensitive to tilt when the accelerometer is perpendicular to gravity; and the tilt signal comprises a pitch signal and a roll signal where pitch and roll are rotations about two perpendicular axes orthogonal to the gravitational vector; a linear input element that generates an electrical signal responsive to user input, wherein the linear input element does not use a detector selected from the group of an acoustic detector, a magnetic detector, and an optical detector to generate the electrical signal and the linear input element generates the electrical signal of a magnitude controlled by a user; an electronic circuit connected to the accelerometer and connected to the linear input element wherein the circuit; comprises a control unit, a memory unit, a communications unit, and a battery, wherein the control unit further comprises a micro-controller and a machine readable storage device; calculates the pitch and the roll from the tilt signal without using input from a device selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector; calculates pitch and roll according to the following equations; - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for presenting user manipulation of a portable device onto a display, the method comprising the steps of:
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establishing a portable device; establishing an accelerometer in the portable device that generates a tilt signal responsive to a gravitational vector in the device; measuring pitch and roll about two perpendicular axes orthogonal to the gravitational vector in response to the projection of static gravity on the tilted accelerometer without using a detector selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector; establishing an additional input element that generates a signal in response to user input; using the additional input elements to generate an electrical signal of a magnitude controlled by the user and proportional to the user'"'"'s input action; establishing an electronic circuit that comprises a control unit, a memory unit, and a communications unit, and an electrical storage device, wherein the control unit further comprises a micro-controller; connecting the circuit to the accelerometer; connecting the circuit to the additional input elements; using the circuit to calculate pitch and roll from the tilt signals without using input from a device selected from the group consisting of a gyroscope, an acoustic detector, a magnetic detector, and an optical detector; calculating pitch and roll according to the following equations; - View Dependent Claims (18, 19, 20)
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Specification