Rockley Photonics has been granted a patent for a method to determine a calibration function. This involves calculating distances between target and comparison spectra, calibrating the target spectra, and confirming that the calibration improves accuracy by comparing distances before and after calibration. GlobalData’s report on Rockley Photonics gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
According to GlobalData’s company profile on Rockley Photonics, was a key innovation area identified from patents. Rockley Photonics's grant share as of July 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Method for calibrating target spectra using comparison distributions
The patent US12066327B2 outlines a method and processing circuit for determining a calibration function based on spectral data. The method involves calculating distances between a distribution of target spectra, measured by a target sensor, and a comparison distribution of spectra from multiple comparison sensors. Initially, a first distance is calculated, followed by the application of a preliminary calibration function to create a calibrated target spectrum. A second distance is then computed, and if this second distance is found to be less than the first, the calibration function is set to the preliminary function. The target sensor is specified as a light source, and the method can utilize various metrics for distance calculation, including Wasserstein distance and Kullback-Leibler divergence.
Additionally, the patent describes the potential for the target sensor to be an optical spectrophotometer, with the comparison sensors also being optical spectrophotometers. The method allows for the calibration of spectra from samples of the same class, ensuring consistency in the comparison. The calibration function can be defined through a neural network that maps nominal wavelengths to calibrated wavelengths. The processing circuit, which can be integrated into the target sensor, is designed to facilitate this calibration process by receiving target spectra and comparison distributions, potentially from external storage. This innovation aims to enhance the accuracy of spectral measurements by establishing a reliable calibration function based on comparative analysis.
To know more about GlobalData’s detailed insights on Rockley Photonics, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
