Information handling system totem pressure sensor
An information handling system interacts with a totem through a touchscreen display, such as with movement of the totem or pressured applied on the totem. A totem holder manages totem position on the touchscreen display to maintain the totem in a desired location, such as to prevent sliding of the totem in the event of motion of the touchscreen display from a horizontal to a more vertical orientation.
1. A system for interacting with an information handling system, the system comprising:
a touchscreen display operable to present information as visual images and to accept touches as inputs;
a totem having a disc shape and a bottom surface configured to touch the touchscreen in an identifiable pattern so that movement applied to the totem is discernible as inputs at the touchscreen display;
a stylus configured to touch the touchscreen display to present end user inputs at the touchscreen display as lines drawn at stylus touch locations; and
a pressure sensor disposed in the totem, the pressure sensor detecting an amount of force applied against an upper surface of the totem and communicating the amount of force as quantity values to the information handling system, the quantity values varying in proportion to the amount of force;
wherein the information handling system presents the stylus lines with a thickness varied based upon one of rotation of the totem or the amount of force.
2. The system of claim 1 further comprising:
a wireless network interface card integrated in the totem and interfaced with the pressure sensor to report the quantity values with wireless communications; and
instructions stored in non-transitory memory of the information handling system, the instructions when executed on a processor causing the pressure sensor values to be applied as inputs.
3. The system of claim 2 wherein touch inputs at the touchscreen display adjust the sensitivity of the quantity values for a given amount of force by adjusting the proportion of force detected to the quantity value.
4. The system of claim 2 wherein touch inputs at the touchscreen display adjust the application of quantity values as inputs between on and off states.
5. The system of claim 4 wherein a touch input to an off state turns off the wireless communications.
6. The system of claim 4 wherein a touch input to an off state turns off application of the quantity values as inputs by the instructions.
7. The system of claim 2 wherein the pressure sensor comprises a strain gauge disposed in the totem and aligned to detect increased strain as the amount of force applied at the totem upper surface increases.
8. The system of claim 2 wherein the pressure sensor comprises a strain gauge disposed in the totem and biased to a strained condition, the strain gauge aligned to detect increased strain as the amount of force applied at the totem upper surface decreases.
9. The system of claim 1 wherein the pressure sensor comprises a member that aligns to different positions relative to the totem bottom surface based upon the amount of force applied to the totem upper surface, the different positions communicating the amount of force quantity values with touch to the touchscreen display.
10. A method for interacting with an information handling system, the method comprising:
disposing a totem on a touchscreen display surface;
locking an outer perimeter section of the totem in position on the touchscreen display surface;
rotating an inner perimeter section of the totem relative to the outer perimeter as a first input to the information handling system;
pressing down on the totem with varying amounts of force, the amount of force providing second input to the information handling system;
detecting the amount of force with a pressure sensor integrated in the totem; and
communicating one of the rotating or the amount of force as a quantity value to the information handling system for use as by the information handling system, the quantity value varying in proportion to the amount of force.
11. The method of claim 10 wherein detecting the amount of force at the totem further comprises detecting increased strain at a strain gauge with increased pressure placed on the totem.
12. The method of claim 11 wherein detecting the amount of force at the totem further comprises detecting decreased strain at the strain gauge with increased pressure placed on the totem.
13. The method of claim 10 wherein detecting the amount of force at the totem further comprises detecting motion translated to touches at the touchscreen display in response to pressure placed on the totem.
14. The method of claim 13 further comprising:
removing the totem from the touchscreen display; and
communicating the amount of force quantity values to the information handling system through a wireless signal.
15. The method of claim 10 further comprising:
turning on the detecting the amount of force at the totem with a first touch indication at the touchscreen display, the turning on communicating the amount of force quantity values to the information handling system for application as an input; and
turning off the detecting the amount of force at the totem with a second touch indication at the touchscreen display, the turning off stopping the communicating the amount of force quantity values to the information handling system.
16. The method of claim 15 wherein the first and second touches comprise finger taps on the touchscreen display.
17. The method of claim 10 further comprising adjusting the quantity value for a given amount of force by rotating the totem.
18. A totem system comprising:
a totem housing having a circular disc shape with an inner portion and outer portion, the inner portion rotating relative to the outer portion with the outer portion resting stationary on a touchscreen display;
a pressure sensor in the totem housing, the pressure sensor operable to detect an amount of force applied to press down on an upper surface of the totem housing;
a communication device operable to communicate the amount of rotation and the amount of force to an information handling system, the amount of force communicated as a quantity value that varies in proportion to the amount of force; and
instructions stored in non-transitory memory of the information handling system that when executed on a processor apply one of the amount of rotation or the amount of force to process information, the amount of rotation or amount of force selected based upon a setting at the information handling system.
19. The totem system of claim 18 wherein the pressure sensor comprises a strain gauge and the communication device comprises a wireless network device.
20. The totem system of claim 18 wherein the pressure sensor comprises an arm that touches the touchscreen display at different locations based upon the amount of pressure.