ALEXANDRIA, Va., July 30 -- United States Patent no. 12,375,181, issued on July 29, was assigned to Lumentum Operations LLC (San Jose, Calif.).

"Shutdown circuitry for a laser emitter" was invented by Mikhail Dolganov (Gilroy, Calif.), Lijun Zhu (Dublin, Calif.) and Hao Huang (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A shutdown circuit may include a filter, for receiving a laser trigger signal for a laser emitter, that is configured to output a filtered signal. The shutdown circuit may include a logic gate configured to receive the filtered signal and at least one of a first signal based on a signal from a photodiode or a second signal based on a signal from a conductive path. The shut...