3D pointing devices with orientation compensation and improved usability
DCFirst Claim
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1. A system comprising:
- means for generating, from a first sensor, a first output associated with motion of a handheld device;
means for detecting, by a second sensor, acceleration of said handheld device and outputting at least one second output; and
means for processing said first output and said at least one second output, said processing means including;
means for determining an orientation in which said handheld device is held using said at least one second output; and
means for compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of said orientation.
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Abstract
Systems and methods according to the present invention describe 3D pointing devices which enhance usability by transforming sensed motion data from a first frame of reference (e.g., the body of the 3D pointing device) into a second frame of reference (e.g., a user'"'"'s frame of reference). One exemplary embodiment of the present invention removes effects associated with a tilt orientation in which the 3D pointing device is held by a user.
429 Citations
95 Claims
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1. A system comprising:
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means for generating, from a first sensor, a first output associated with motion of a handheld device; means for detecting, by a second sensor, acceleration of said handheld device and outputting at least one second output; and means for processing said first output and said at least one second output, said processing means including; means for determining an orientation in which said handheld device is held using said at least one second output; and means for compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of said orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for using a free space pointing device comprising the steps of:
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detecting movement of said free space pointing device using an accelerometer and at least one other sensor; determining an orientation in which said free space pointing device is held; and compensating said at least one other sensor'"'"'s detected movement based on said determined orientation by performing a two-dimensional rotational transform on said at least one other sensor'"'"'s detected movement to generate an output which is substantially independent of said orientation. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A handheld device comprising:
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a sensor for generating a first output associated with motion of said handheld device; an accelerometer for detecting acceleration of said handheld device and outputting at least one second output; and a processing unit for receiving and processing said first output from said sensor and said at least one second output from said accelerometer, said processing including; determining an orientation in which said handheld device is held using said at least one second output; and compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of said orientation. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A system comprising:
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(a) a handheld device including; a sensor for generating a first output associated with motion of said handheld device; and an accelerometer for detecting acceleration of said handheld device and outputting at least one second output; and (b) a processing unit for receiving and processing said first output from said sensor and said at least one second output from said accelerometer, said processing including; determining an orientation in which said handheld device is held using said at least one second output; and compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of said orientation. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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77. A method comprising:
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generating, from a first sensor, a first output associated with motion of a handheld device; detecting, by a second sensor, acceleration of said handheld device and outputting at least one second output; and processing said first output and said at least one second output, said processing including; determining an orientation in which said handheld device is held using said at least one second output; and compensating said first output based on said determined orientation by performing a two-dimensional rotational transform on said first output to generate an output which is substantially independent of said orientation. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95)
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Specification