CPC G06F 3/04162 (2019.05) [G06F 3/0383 (2013.01); G06F 3/03545 (2013.01); G06F 3/044 (2013.01); G06F 3/046 (2013.01); G06F 3/0416 (2013.01); G06F 3/0418 (2013.01); G06F 3/0441 (2019.05); G06F 3/0442 (2019.05); G06F 3/0446 (2019.05); G06F 3/04166 (2019.05); G06F 2203/04104 (2013.01); G06F 2203/04105 (2013.01); G06F 2203/04106 (2013.01); G06F 2203/04108 (2013.01)] | 20 Claims |
1. A combination touch and transducer input system, comprising:
a transducer configured to generate an electric field;
an array of electrodes; and
a controller coupled to the array of electrodes, the controller being configured to:
when operating in a touch mode, determine a position of a proximate object by capacitively sensing the object with the array of electrodes; and
when operating in a transducer mode, determine a position of the transducer by measuring attributes of a plurality of sensing signals, the plurality of sensing signals being induced in the array of electrodes by the electric field generated by the transducer;
wherein the transducer is configured to transmit digital data to the array of electrodes by modulating a signal of a frequency selected among multiple frequencies by dividing down a known base frequency, and the controller is configured to receive the digital data via the array of electrodes.
|