Sharp and Memory-Tech Holdings Assigned Patent

Sharp Kabushiki Kaisha, Sakai, Japan, and Memory-Tech Holdings Inc., Tokyo, Japan, has been assigned a patent (9,633,688) developed by Tajima, Hideharu, Yamamoto, Masaki, Yamada, Hirohisa, Naka, Takayuki, Osaka, Japan, and Konishi, Masahito, Chikusei, Japan, for a “reproducing device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A reproducing device, (100) includes, (i) an optical pickup, (6) for irradiating, with reproduction light, an optical disk, (1) which is a super-resolution medium, (ii) an RF signal processing circuit, (9) for converting, into a reproduction signal, light which reflected off optical disk, (1), (iii) an i-MLSE detecting section, (141) for evaluating quality of the reproduction signal, and, (iv) a spherical aberration correcting section, (142) for correcting a spherical aberration by using a result of evaluation of the quality of the reproduction signal.”

The patent application was filed on April 8, 2014 (14/902,941).