US Patent Issued to ROHM on May 12 for "Sine wave generation circuit and test device" (Japanese Inventor)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,512, issued on May 12, was assigned to ROHM Co. LTD. (Kyoto, Japan).

"Sine wave generation circuit and test device" was invented by Keno Sato (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sine wave generation circuit includes: a first direct digital synthesizer generating a digital sine wave fundamental signal having a frequency f0 in a normal operation mode and a calibration mode; a second direct digital synthesizer generating a digital second harmonic correction signal having a frequency 2f0 in the normal operation mode; a correction circuit superimposing the digital second harmonic correction signal on the digital sine wave fundam...