Magnetic manual user interface devices
Various finger tip controlled manual interface devices that can be used as inputs to personal computers, electromechanical systems and video game consoles utilize concentrically arranged magnets. The polarities of the magnets are oriented to provide restoration forces on a one of the magnets to bias it toward a neutral position. A magnetic sensor including a plurality of sensing elements such as Hall effect devices generates output signals representative of direction and amount of movement of the magnet that is biased to the neutral position.
1. A device, comprising:
an actuator having an axis;
an annular magnet;
a magnet operatively coupled to the actuator; and
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis;
wherein the actuator comprises a pliant deformable element.
2. A device, comprising:
an actuator having an axis;
an annular magnet;
a magnet operatively coupled to the actuator;
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis; and
a ball-sleeve supporting the annular magnet.
3. A device, comprising:
an actuator having an axis;
an annular magnet;
a magnet operatively coupled to the actuator; and
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis;
wherein the three-axis integrated circuit magnetic sensor is mounted on a printed circuit board (PCB) and the PCB is oriented in the device to be positioned below the annular magnet when the actuator is in an upright position.
4. The device of claim 3 , wherein the annular magnet is disposed on the PCB.
5. A device, comprising:
an actuator having an axis and comprising a compliant deformable material;
an annular magnet;
a magnet operatively coupled to the actuator;
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis; and
a mechanically actuated switch positioned to be actuated by a user's digit.
6. A device, comprising:
an actuator having an axis;
an annular magnet;
a magnet operatively coupled to the actuator; and
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis;
wherein the magnet and the annular magnet are positioned so that the annular magnet provides a restorative force when the actuator is moved from a neutral state position.
7. The device of claim 1 , 2 , 5 , or 6 , wherein the annular magnet is disposed on the PCB.
8. A device, comprising:
an actuator having an axis and comprising a pliant deformable element;
an annular magnet;
a magnet operatively coupled to the actuator;
a three-axis integrated circuit magnetic sensor positioned to detect changes in a magnetic field due to movement of the magnet operatively coupled to the actuator and generate signals representative of the direction and amount of movement of the magnet operatively coupled to the actuator relative to a reference axis; and
a plurality of light emitting diodes (LEDs) and electronic circuitry to drive the LEDs in conjunction with a movement of the actuator.