ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,920, issued on Sept. 1, was assigned to Kyoto University (Kyoto, Japan).

"System and method for quantum absorption spectroscopy" was invented by Shigeki Takeuchi (Kyoto, Japan), Yu Mukai (Kyoto, Japan) and Ryo Okamoto (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image sensor includes a light receiving surface on which a plurality of pixels are disposed, and detects a signal photon. A memory stores, a correspondence between a parameter indicating the position of each pixel and the wavelength of the signal photon detected by the pixel. A processor executes arithmetic processing for calculating the spectral characteristic of a sample...