Patent ID: 11868565
Assignee: CYPRESS SEMICONDUCTOR CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A device comprising:
a sensing channel comprising an attenuator, the attenuator to receive an input signal from at least one sense electrode; and
a signal generator coupled to the attenuator, wherein the signal generator is:
to generate a rectified sinusoidal signal to modulate a gain of the attenuator,
to generate a sinusoidal signal, based at least in part, on one or more noise characteristics of a scan sequence associated with one or more transmit electrodes,
to generate the rectified sinusoidal signal based on the sinusoidal signal, and
to provide the rectified sinusoidal signal to the attenuator during the scan sequence; and

wherein the attenuator is configured to multiply the input signal with the rectified sinusoidal signal to reduce a noise characteristic of the input signal.