Patent ID: 9652090
Date: 2017-05-16
CPC Classifications: G06F

Claim:
1. A computing device configured to communicate with a peripheral input device, the computing device comprising: a processor; a touch interface in communication with the processor and configured to detect an input signal corresponding to an object approaching or contacting a surface; a digital data receiver in communication with the processor and the touch interface and configured to receive through the touch interface at least one input signal transmitted from the peripheral input device, wherein the at least one input signal transmitted from the peripheral input device includes an excitation signal with a first amplitude and digital data with a second amplitude, wherein the second amplitude is smaller than the first amplitude; and a plurality of switches configured to couple, in response to receiving the excitation signal, the digital data receiver to a plurality of sense lines of the touch interface to receive the digital data during transmission periods of the peripheral input device, and decouple, in response to receiving a termination signal from the peripheral input device, the digital data receiver from the plurality of sense lines of the touch interface; wherein the digital data receiver amplifies the at least one input signal creating at least one amplified input signal; and one of the processor or the digital data receiver analyzes the at least one amplified input signal and creates at least one digital output signal corresponding to the at least one input signal.