US Patent Issued to ROHM on Dec. 23 for "Audio amplifier circuit and audio output device using the same" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,462, issued on Dec. 23, was assigned to ROHM Co. LTD. (Kyoto, Japan).

"Audio amplifier circuit and audio output device using the same" was invented by Tetsuya Ogawa (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A current mirror circuit generates test currents supplied to a first output pin and a second output pin. The current mirror circuit includes first to sixth transistors and first to fifth switches. The first switch and the second switch are turned on in a first mode requiring a large amount of test current and turned off in a second mode requiring a small amount of a first test current and a second test current."

The patent was...