APPLICATION
`NUMBER
`61/292,558
`
`FILING or
`37l(c)DATE
`01/06/2010
`
`GRPART
`UNIT
`
`FIL FEE REC'D
`110
`
`4586
`ROSENBERG, KLEIN & LEE
`3458 ELLICOTT CENTER DRIVE-SUITE 101
`ELLICOTT CITY, MD 21043
`
`Ul\TfED STATES DEPA RTME'IT OF COMMERCE
`United States Patent
`and Trademark
`Office
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`\VVi\V.USpto.gov
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`ATTY.DOCKET.NO
`MR3871-156/P
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`TOT CLAIMS
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`IND CLAIMS
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`CONFIRMATION NO. 1981
`FILING RECEIPT
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`
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`I llllllll llll llll lllll ll]~!l]!~l!~l!~IIJIJJl!ll!I)] 111111111111111 IIII IIII
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`Date Mailed: 01/26/2010
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`Receipt is acknowledged of this provisional patent application. It will not be examined for patentability and will
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`Applicant( s)
`
`ZHOU YE, FOSTER CITY, CA;
`SHAN-NAN LIOU, KAOHSIUNG CITY, TAIWAN;
`SHENG-WENG JENG, TAINAN CITY, TAIWAN;
`Power of Attorney:
`Morton Rosenberg--26049
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`If Required, Foreign Filing License Granted: 01/21/2010
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`** SMALL ENTITY **
`Title
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`30 POINTING DEVICES AND METHODS OF THE SAME
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`PROTECTING YOUR INVENTION OUTSIDE THE UNITED STATES
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`Since the rights granted by a U.S. patent extend only throughout the territory of the United States and have no
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`effect as a regular national patent application in each PCT-member country. The PCT process simplifies the filing
`page 1 of 3
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`Attorney Docket Number MR3871-156/P
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`Title of Invention
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`3D POINTING DEVICES AND METHODS OF THE SAME
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`r
`,DD 1can t I f
`n orma 10n:
`f
`A
`Aoolicant 1
`Applicant Authority (!)Inventor
`Prefix Given Name
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`ZHOU
`YE
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`542 HANBURY LANE
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`SHAN-NAN
`LIOU
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`City KAOHSIUNG CITY 806
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`Mailing Address of Applicant:
`Address 1
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`NO. 28, LN. 341, GANGSHAN N. ST.
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`
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`QIANZHEN DIST.
`I KAOHSIUNG CITY 806
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`SHENG-WENG
`JENG
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`I TW
`City TAINAN CITY 701
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`PTO/SB/14 (07-07)
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`Attorney Docket Number MR3871-156/P
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`Title of Invention
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`3D POINTING DEVICES AND METHODS OF THE SAME
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`NO. 8, ALY. 3, CHONG DE 4TH ST.
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`30 POINTING DEVICES AND METHODS OF THE SAME
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`MR3871-156/P
`
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`
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`
`3D POINTING DEVICES AND METHODS OF THE SAME
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`/MORTON J_ ROSENBERG/
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`2010-01-06
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`MORTON
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`

`

`PROVISIONAL APPLICATION FOR
`
`3D POINTING DEVICES AND METHODS OF THE SAME
`
`[0001]
`
`The present invention may generally related to methods or apparatuses of human
`
`interface devices, and more particularly, to methods or apparatuses of 3-dimentional controller
`
`5
`
`devices.
`
`BACKGROUND OF THE INVENTION
`
`[0002]
`
`A three-dimensional
`
`(3D) pointing device may refer to an input device applicable to
`
`be moved by a user in three or more dimensions in the space (e.g., air) in front of a screen (or
`
`monitor) to control a corresponding user interface by translating those motions done by the user
`
`10 with the 3D pointing device directly into commands acceptable by the user interface, for
`
`example, movement of a cursor on the screen. The transfer of data between the 3D pointing
`
`device may be performed via a wire or a wireless way coupled the 3D pointing device to another
`
`device where the user interface setup in and/or displayed with. Conventionally,
`
`the 30 pointing
`
`device may enhance usability by transforming sensed motion data generated accordingly to the
`
`15
`
`user's motion from a body frame of the 3D pointing device into another frame of reference (e.g.,
`
`a user's frame of reference).
`
`[0003]
`Conventionally, the 3D pointing device may include an accelerometer (g-sensor) and
`a gyroscope, wherein the accelerometer is used to detect/measure the acceleration of the 3D
`
`pointing device in a specific direction(s) (e.g., the three axis directions), and the gyroscope is
`
`20
`
`used to measure the rotation (e.g., the rotation rate) of the 3D pointing device. The displacement
`
`and the rotation of the 30 pointing device may be measured or tracked by applying integral to
`
`the acceleration/rotation of the 3D pointing device. However, error, that is or may be the
`
`difference between a real track which a user wants to take his/her motion(s) to get and the track
`
`generated after the acceleration/rotation of the 3D pointing device is detected or measured by its
`
`25
`
`accelerometer or gyroscope, may be accumulated during continuously calculating the integral for
`
`

`

`calculating the displacement or rotation of the tracking (i.e., the error is also integrated into the
`
`calculation result).
`
`[0004]
`
`Compensation to the accumulated error may be done by calibration with reference to
`
`a magnetic direction, for example, the magnetic line(s) or force direction (magnetic field
`
`5
`
`direction) at the position of the 3D pointing device, detected by a magneto-resistance (MR, or
`
`magnetic reluctance) sensor equipped in the 3D pointing device. An example of the prior art can
`
`easily be found from Chinese patent numbered CN 1664506A of which acceleration measured by
`
`a 3-axis accelerometer and magneto field detected by a 3-axis MR sensor may be calibrated by
`
`measurement done by a 3-axis gyroscope. Another example of the prior art may be found fron~
`
`10 Chinese patent numbered CN1740746A of which a direction cosine matrix may be modified by a
`
`I-axis accelerometer, a 3-axis MR sensor and a 3-axis gyroscope to estimate/measure a posture
`
`of a 3D pointing device.
`
`[0005]
`
`However, the MR sensor may suffer from slow response due to its characteristic.
`
`Therefore, the calibration of the abovementioned prior art may be delayed and thus the
`
`15
`
`performance of the 3D pointing device may be lowered down.
`
`[0006]
`
`It may therefore be desirable to have a 3D pointing device and method of the same to
`
`solve the abovementioned problem(s).
`
`PRELIMINARY DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
`
`The foregoing summary, as well as the following detailed description of the
`[0007]
`invention, wiH be better understood when read in conjunction with the appended drawings. For
`
`20
`
`the purpose of illustrating the invention, there are shown in the drawings examples which are
`
`presently preferred. It should be understood, however, that the invention is not limhed to the
`
`precise arrangements and instrumentalities shown.
`[0008]
`
`In the drawings:
`
`25
`
`[0009]
`
`FIG. 1 is a diagram illustrating inertial signal definition of a remote controller or a
`
`joystick according to an example of the present invention;
`
`2
`
`

`

`[OOlOJ
`
`FIG. 2A is a diagram illustrating measuring results of tilt angles generated from an
`
`accelerometer;
`
`[0011]
`
`FIG. 2B is a diagram illustrating a tilt angle calculated from measuring results of an
`
`accelerometer in y-axis direction;
`
`5
`
`[0012]
`
`FIG. 2C is a diagram illustrating integrated angles calculated from measuring results
`
`of a gyroscope;
`
`[0013]
`
`FIG. 2D is a diagram illustrating bias of integrated angles caused by thermal run-
`
`away while a gyroscope stays still;
`
`[0014]
`
`FIG. 2E is a diagram illustrating measuring results related to low sampling rate of an
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`10
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`accelerometer and/or sensitivity issues of MR sensor;
`
`[0015]
`
`FIGS. 3A and 3B are diagrams of a dynamic analysis and measuring results according
`
`to an example of the present invention;
`
`[0016]
`
`FIG. 4 is a diagram of a dynamic analysis of a 3D pointing device according to an
`
`example of the present invention;
`
`15
`
`[0017}
`
`FIG. 5A is a functional block diagram of a 3D pointing device according to another
`
`example of the present invention;
`
`[0018]
`
`FIG. 5B is a flowchart of a method of a 3D pointing device according to still another
`
`example of the present invention;
`
`[0019]
`FIG. 6 is a diagram illustrating measuring results of a 3D pointing device according
`to yet another example of the present invention;
`
`20
`
`[0020]
`
`FIG. 7 A is a block diagram illustrating a system of a 3D pointing device including a
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`mapping tool according to other example of the present invention; and
`
`3
`
`

`

`[0021]
`
`FIG. 7B is a diagram illustrating an exemplary graphic user interface (GUI) for
`
`setting the mapping tool of the system of the 3D pointing device illustrated in FIG. 7 A.
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`PRELIMINARY DESCRJPTION OF THE INVENTION
`
`[0022]
`
`Reference will now be made in detail to the present examples of the invention,
`
`5
`
`examples of which are illustrated in the accompanying drawings. Wherever possible, the same
`
`reference numbers will be used throughout the drawings to refer to the same or like parts.
`
`[0023]
`
`FIG. 1 is a diagram illustrating inertial signal definition(s) of a remote controller, a
`
`joystick or a cellular phone 10 (hereinafter the "remote controller 1 O") according to an example
`
`of the present invention, wherein the cellular phone may also be applicable to control a remote
`device such as a TV, a PC, a laptop or a gamer if it is configured as a transmitter capable of
`
`10
`
`generating and sending control signals to the remote device, and if the remote device is capable
`
`of receiving the control signals, either equipped a receiver for receiving the control signals
`
`directiy, or coupled with a gateway to receive the control signals in some examples of the present
`
`invention.
`
`15
`
`[0024]
`
`Referring to FIG. 1, the remote controller 10 may be used to point a cursor or control
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`a game displayed on a screen 12. The remote controller 10 may include a motion-sensor module
`
`which not shown in FIG. I but will be described and illustrated as a motion-sensor module 40
`
`with reference to FIG. 4. The motion-sensor module (40 shown in dashed lines) may be formed
`
`or disposed in the remote controller 10. The motion-sensor module may include an
`
`20
`
`accelerometer (such as an accelerometer 41 shown in FIG. 4), a gyroscope (such as a gyroscope
`
`42 shown in FIG. 4) and a magnetic sensor (such as an MR sensor 43 shown in FIG. 4). The
`
`ac;celerometer (41) may be configured to measure acceleration of the remote controller 10. In
`
`one example, the accelerometer may include, but is not limited to at least one of a single-axis, a
`
`dual-axis or a 3-axis accelerometer for measuring acceleration of the remote controller 10
`
`25
`
`generated in different direction(s).
`
`In the example of applying the 3-axis accelerometer
`
`in the
`
`motion-sensor module, accelerations in x-axis, y-axis and z-axis directions of the remote
`
`controller 10 may be defined and measured as (Ax, Ay, Az). Those skilled in the art can easily
`
`understand that the 3-axis accelerometer for measuring accelerations
`
`in the three axes can also be
`
`4
`
`

`

`configured, implemented or replaced by three single-axis accelerometers configured for
`
`measuring the accelerations in the three directions, that is, to be mounted to face on different
`
`direction according to the three axes, or by one single-axis accelerometer and one dual-axis
`
`accelerometer instead, and thus should not become limitation to the present invention.
`
`5
`
`[0025]
`
`The gyroscope (42) may be configured to measure rotation of the remote controller
`
`10. In one example, the gyroscope may include, but is not limited to at least one of a single-axis,
`
`a dual-axis or a 3-axis gyroscope for measuring rotation of the remote controller 10 in various
`
`direction(s). Similarly, in the example of applying the 2-axis gyroscope in the motion-sensor
`
`10
`
`module, rotations (or rotation rate(s)) defined as Wx and Wz in the x-axis direction and z-axis
`direction or in at least two directions of the x-axis, y-axis and z-axis directions of the remote
`controller 10 may be measured. Those skilled in the art can easily understand that the 3-axis
`
`gyroscope for measuring rotation(s) defined as Wx, Wyand Wz in the three axes can also be
`
`applied according to various design requirement(s).
`
`In one example, the 2-axis gyroscope or the
`
`3-axis gyroscope may also be configured, implemented or replaced by combination(s) of single-
`
`15
`
`axis and/or 2-axis gyroscope(s).
`
`[0026]
`
`Moreover, the MR sensor may be configured to measure magneto-field (magnetism)
`
`which the remote controller 10 suffers in various directions.
`
`In one example, the MR sensor may
`
`include, but is not limited to at least one of a single-axis, a dual-axis or a 3-axis magnetic sensor
`
`for measuring magnetisms of the remote controller 10 in various direction(s). Moreover, the MR
`
`20
`
`sensor may include an electrical compass (ore-compass).
`
`In the example of applying the 3-axis
`
`magnetic sensor in the motion-sensor module ( 40), magnetism defined as Mx, My and Mz in x(cid:173)
`
`axis, y-axis and z-axis directions of the remote controller 10 may be measured. Those skilled in
`
`the art can easily understand that the direction(s), axis or axes, or the number of the axes which
`
`the MR sensor may be configured should not become the limitation of the present invention.
`
`25
`
`[0027]
`
`Therefore, the inertial signal definition(s) of the remote controller 10 according to the
`
`present example should be as follows:
`
`Ax, Ay and Az are the acceleration signals sensed by the accelerometer(s)
`
`in the x-, y-, z(cid:173)
`
`axis directions, respectively;
`
`5
`
`

`

`Wx, Wyand Wz are the angle (rotation) rate signals sensed by or calculated from the
`
`gyroscope pivoted at the x-, y-, z-axis directions, respectively; and
`
`Mx, My and Mz are the magnetic (magneto-field) signals sensed by the MR sensor pivoted
`at the x-, y-, z~axis directions, respectively.
`
`5
`
`[0028]
`
`In one example, when the remote controller 10 is pointed as doing the cursor control
`
`in the air, it may use rotation angles pivoted at any two axes to map into cursor movement(s) in
`
`x- and y-axis direction(s) shown on the screen 12, of which the tilt angles of the remote
`controller 10 may be calculated by the Ax and Ay signals, integrated signals Ix and I2 may be
`calculated by W x and W z signals and both tilt angles or integrated angles may be compensated by
`
`l O
`
`the magne