US Patent Issued to Ricoh on Sept. 8 for "Communication device and image forming apparatus" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,721, issued on Sept. 8, was assigned to Ricoh Co. Ltd. (Tokyo).

"Communication device and image forming apparatus" was invented by Tomohiko Kaneko (Kanagawa, Japan), Kenichi Watanabe (Kanagawa, Japan) and Kazuhiro Ikeda (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A communication device includes: a signal reception circuit to receive a differential signal and convert the differential signal into binary data; a squelch detection circuit to compare an amplitude level of the differential signal with threshold voltages to detect presence or absence of a signal and detect a non-squelch state and a squelch state; a start pattern detection ...