18374560. Physiological Sensors with Combined Signal Outputs (Apple Inc.)
Physiological Sensors with Combined Signal Outputs
Organization Name
Inventor(s)
Adriaan J. Taal of San Diego CA US
Amandeep Singh of San Jose CA US
Physiological Sensors with Combined Signal Outputs
This abstract first appeared for US patent application 18374560 titled 'Physiological Sensors with Combined Signal Outputs
Original Abstract Submitted
A device includes a physiological sensor having a plurality of sensing electrodes, and a signal combining chip having a plurality of input channels, a waveform generator, a summing circuit, and an output channel. The plurality of input channels are configured to receive a plurality of voltage signals. Each input channel is configured to receive a respective one of the plurality of voltage signals from a respective one of the plurality of sensing electrodes. The waveform generator is configured to generate a set of modulation signals, each of which modulates a corresponding voltage signal of the plurality of voltage signals to generate a corresponding encoded voltage signal and form a set of encoded voltage signals. The summing circuit is configured to superimpose the set of encoded voltage signals to form a combined voltage signal that is outputted through the output channel.
