Other

Nitto-Denko Corporation

Senthil Kumar

Visit Thaveeprungsriporn

Ewald Guenther

Mark Auch

Chua Soo Jin

Md Irwan Bin Md Kassim

Kittipong Kasamsook

Mohamad Sulhede Bin Samsudin

A device and method for removal of ambient noise signal from a photoplethysmographic measurement is provided. The method comprises obtaining a first signal waveform based on detecting light based on a first light illumination; obtaining a second signal waveform based on detecting light based on a second light illumination; tuning the first light and second light illumination such that the maximum amplitudes of the first and second signal waveforms are maximized and within a predetermined saturation range, such that ambient light interference for the first and second signal waveforms is reduced; obtaining a third signal waveform based on detecting ambient light; obtaining respective maximum and minimum values of the first and the second signal waveforms; and deriving signal values of the first and second signal waveforms with the removal of ambient noise by subtracting AC and DC average values of the third signal waveform from the first and second signals.

Device and method for removal of ambient noise signal from a photoplethysmograph

A barrier stack for sealing devices is described. The barrier stack includes at least first and second base layers bonded together with a high barrier adhesive. A base layer includes a flexible support coated on at least one major surface with a barrier layer. The adhesive advantageously seals defects, such as pinholes in the barrier layer, thus improving the barrier properties.

Barrier stack

Growing community of inventors

Singapore, Singapore

Senthil Kumar