Hand-held controller using sensors for hand disambiguation
A hand-held controller includes a handle extending in a longitudinal direction. The handle is shaped and dimensioned to be grasped by a hand of a user. A ring is attached to an end of the handle and surrounds a thumb of the user when the handle is grasped by the hand of the user. The ring has an annular surface defining a plane that forms a predetermined angle with respect to the longitudinal direction. The ring also has a curved outer surface. A sensor is embedded within the ring or mounted on a side surface of the handle to detect whether the hand of the user grasping the handle is a right hand of the user or a left hand of the user.
1. A hand-held controller, comprising:
a handle extending in a longitudinal direction, the handle shaped and dimensioned to be grasped by a hand of a user; and
a first capacitive electrode mounted on a first side surface of the handle and a second capacitive electrode mounted on a second side surface of the handle opposite to the first side surface, the first capacitive electrode configured to generate a first capacitance and be contacted by one of a finger or a palm of the hand of the user, the second capacitive electrode configured to generate a second capacitance and be contacted by another of the finger or the palm of the hand, the first capacitive electrode and the second capacitive electrode configured to transmit signals corresponding to the first capacitance and the second capacitance to a processor to detect whether the hand of the user grasping the handle is a right hand of the user or a left hand of the user by:
comparing the first capacitance and the second capacitance,
responsive to the first capacitance being larger than the second capacitance, determining that the hand is the right hand, and
responsive to the second capacitance being larger than the first capacitance, determining that the hand is the left hand.
2. The hand-held controller of claim 1 , wherein, responsive to the first capacitance being lower than the second capacitance, the processor is configured to determine:
the first capacitance is a capacitance between the handle and the finger of the hand of the user grasping the handle; and
the second capacitance is a capacitance between the handle and the palm of the hand of the user grasping the handle.
3. The hand-held controller of claim 1 , further comprising a wireless communication interface configured to transmit wireless signals indicating whether the hand of the user grasping the handle is a right hand of the user or a left hand of the user.
4. The hand-held controller of claim 1 , further comprising:
a ring attached to an end of the handle and having (i) an annular surface defining a plane that forms a predetermined angle with respect to the longitudinal direction, and (ii) a curved outer surface.
5. The hand-held controller of claim 1 , wherein the processor is located in the hand-held controller.
6. The hand-held controller of claim 1 , wherein the processor is located in a device separated from the hand-held controller.
7. A method, comprising:
determining, by a first capacitive electrode mounted on a first side surface of a handle of a hand-held controller and contacted by one of a finger or a palm of a hand of a user grasping the handle, a first capacitance between the handle and the hand;
determining, by a second capacitive electrode mounted on a second side surface of the handle and contacted by another of the finger or the palm of the hand of the user grasping the handle, a second capacitance between the handle and the hand; and
determining whether the hand of the user grasping the handle is a right hand of the user or a left hand of the user, determining whether the hand the right hand or the left hand comprising:
comparing the first capacitance and the second capacitance,
responsive to the first capacitance being larger than the second capacitance, determining that the hand is the right hand, and
responsive to the second capacitance being larger than the first capacitance, determining that the hand is the left hand.
8. The method of claim 7 , further comprising:
generating, by the first capacitive electrode, first sensor signals corresponding to the first capacitance; and
generating, by the second capacitive electrode, second sensor signals corresponding to the second capacitance.
9. The method of claim 7 , further comprising, responsive to the first capacitance being lower than the second capacitance, determining the first capacitance is a capacitance between the handle and the finger of the hand of the user grasping the handle.
10. The method of claim 7 , further comprising, responsive to the first capacitance being lower than the second capacitance, determining the second capacitance is a capacitance between the handle and the palm of the hand of the user grasping the handle.
11. The method of claim 7 , wherein determining whether the hand is the right hand or the left hand is performed by a processor that located in the hand-held controller.