US 12,405,356 B2
GmAPD data normalization using Bernoulli trials
Samuel Richard Wilton, Trenton, NJ (US)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Oct. 21, 2021, as Appl. No. 17/507,701.
Claims priority of provisional application 63/191,737, filed on May 21, 2021.
Prior Publication US 2022/0373658 A1, Nov. 24, 2022
Int. Cl. G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 7/4865 (2020.01); G01S 17/931 (2020.01)
CPC G01S 7/4865 (2013.01) [G01S 7/4816 (2013.01); G01S 17/931 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
detecting laser signals reflected from a target, by sensing an accumulation of single photons by a photon detector;
creating an avalanche histogram from the detected laser signals;
transforming the avalanche histogram to an avalanche probability histogram by framing raw data from the photon detector as a sequence of Bernoulli trials within a timestamp interval and applying a binomial confidence estimation;
transforming the avalanche probability histogram into a linearized intensity histogram by correcting waveform distortion; and
determining a photon intensity of the reflected laser signals from an average count rate and an average photon flux rate associated with the linearized intensity histogram.