US Patent Issued to Rockwell Collins on Oct. 21 for "Photonic analog-to-digital converter (pADC) with photonic phase correction" (Maryland Inventor)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,714, issued on Oct. 21, was assigned to Rockwell Collins Inc. (Cedar Rapids, Iowa).

"Photonic analog-to-digital converter (pADC) with photonic phase correction" was invented by Daniel J. Esman (Columbia, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for correcting environmental phase drift between signal and reference branches of a photonic analog-digital converter (pADC) with passive remote sampler (PRS) sends a continuous-wave (CW) laser from a base unit through the PRS in a reverse optical path to measure the phase drift. The CW optical signal is converted to an electrical signal from which a phase-error signal indicative...