Handheld power tools with kickback detection and methods of detecting a kickback condition of a handheld power tool

(canceled)

3:

• The method of claim 1, wherein the detecting further includes detecting a workpiece contact parameter, wherein, when the circular saw blade is in contact with a workpiece, the workpiece contact parameter is within a contact value range, wherein, when the circular saw blade is spaced apart from the workpiece, the workpiece contact parameter is within a no-contact value range, and further wherein the verification parameter further includes the workpiece contact parameter and/or wherein the method includes determining that the kickback condition exists when the workpiece contact parameter is within the contact value range.

(canceled)

5:

• The method of claim 3, wherein the workpiece contact parameter includes a power consumption of the circular saw during the rotating, wherein a motor of the circular saw defines a maximum rated power consumption, and further wherein the contact value range includes a power consumption that is greater than a threshold percentage of the maximum rated power consumption.

6:

• The method of claim 3, wherein the circular saw includes a contact detector configured to detect contact between the circular saw blade and the workpiece, and further Wherein the contact detector is configured to generate the workpiece contact parameter.

7:

• The method of claim 1, wherein the detecting the magnitude of the acceleration includes detecting a first acceleration component in a first direction that is within the acceleration detection plane and detecting a second acceleration component in a second direction that is perpendicular to the first direction and within the acceleration detection plane, and wherein the magnitude of the acceleration is determined from the first acceleration component and the second acceleration component.

(canceled)

9:

• The method of claim 7, wherein the detecting the angular velocity of the circular saw includes detecting a first angular velocity component about the first direction and detecting a second angular velocity component about the second direction, and wherein the angular velocity of the circular saw is a vector sum of the first angular velocity component and the second angular velocity component.

10:

• The method of claim 1, wherein the threshold acceleration value is at least 1 meter per second squared (m/s2).

12-13. (canceled)

14:

• The method of claim 1, wherein the threshold angular velocity value is at least 1 degree per second (°/s).

15:

• The method of claim 1, wherein the threshold angular velocity value includes angular velocities that urge a blade-proximate side of a workpiece support of the circular saw away from a workpiece.

-19. (canceled)

20:

• The method of claim 1, wherein the method further includes applying a falsification parameter, further wherein the determining is based, at least in part, on the falsification parameter.

21-25. (canceled)

26:

• The method of claim 20, wherein the falsification parameter is determined within a detection time window.

27-29. (canceled)

31-38. (canceled)

(canceled)

44-45. (canceled)

46:

• The method of claim 39, wherein the falsification parameter is determined within a detection time window.

(canceled)

48:

• The circular saw of claim 30, wherein the motion sensor is positioned in a distance from the pivot axis, wherein the distance is between 1 cm and 20 cm, wherein the motion sensor is oriented such that an acceleration detection axis extends substantially perpendicular to the pivot axis.

49:

• The circular saw of claim 30 wherein the user-actuated assembly comprises a circuit board, wherein the circuit board includes both the controller and the motion sensor.