Patent ID: 11906564
Assignee: SIGMASENSE, LLC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A touch controller comprises:
a touch processing module; and
a plurality of drive sense circuits coupled to the touch processing module, wherein a drive sense circuit of the plurality of drive sense circuits includes:
an analog time domain circuit operable to:
generate an analog frequency domain signal;
provide, when operably coupled to a sensor of a touch screen, the analog frequency domain signal to the sensor; and
generate an analog frequency domain error correction signal based on an effect the sensor has on the analog frequency domain signal, wherein the analog frequency domain error correction signal includes embedded frequency domain data representative of the effect;

an analog to digital circuit operable to covert the analog frequency domain error correction signal into a digital frequency domain error correction signal; and
a digital frequency domain circuit operable to generate digital data regarding the sensor based on the digital frequency domain error correction signal; and

wherein the touch processing module is operable to process the digital data into touch sense data.