University of Washington

Visvesh S Sathe

Xun Sun

William Anthony Smith

A control circuit includes one or more processors and a computer readable medium storing instructions that, when executed by the one or more processors, cause the control circuit to perform functions. The functions include providing a load current that flows into a digital load and determining a magnitude of a difference between a load voltage across the digital load and a reference voltage. The functions also includes determining a digital state of the digital load and adjusting the load current based on (i) the magnitude of the difference between the load voltage and the reference voltage and (ii) the digital state of the digital load.

Power management method

A control circuit includes an oscillator configured to provide, to a digital load, a clock signal having an oscillation period that (i) depends on a supply voltage and (ii) is greater than a critical path delay of the digital load. The control circuit also includes a control module configured to provide the supply voltage to the digital load and the oscillator and adjust the supply voltage based on (i) a degree of a voltage difference between the supply voltage and a reference voltage and (ii) a degree of a phase difference between the clock signal and a reference clock such that the oscillator changes the oscillation period to reduce the degree of the phase difference between the clock signal and the reference clock.

Dual feedback loops for integrated voltage and clock regulation

Examples of recording channels and methods for biopotential signal acquisition and/or recording are described. Recording channels described herein may implement any combination of techniques described herein including multiplexing of multiple electrode inputs, delta encoding of biopotential signals, and common mode suppression.

Growing community of inventors

Seattle, WA, United States of America

Visvesh S Sathe