US Patent Issued to Realtek Semiconductor on March 11 for "Four-phase clock buffer of twenty-five percent duty cycle" (California Inventor)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,989, issued on March 11, was assigned to Realtek Semiconductor Corp. (Hsinchu, Taiwan).

"Four-phase clock buffer of twenty-five percent duty cycle" was invented by Chia-Liang (Leon) Lin (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-stage 4-phase clock buffer having a cascade of a first stage and a second stage, wherein: the first stage includes four p-channel oxide semiconductor transistors (PMOSTs) configured in a common-source ring topology to dispatch a first 4-phase clock, and four n-channel oxide semiconductor transistors (NMOSTs) configured in a common-source topology to control the first 4-phase clock in response to a...