Sony Assigned Patent

Sony Corporation, Tokyo, Japan, has been assigned a patent (10,410,667) developed by Saito, Kimihiro, Saitama, Japan, and Horigome, Toshihiro, Kanagawa, Japan, for “high density optical disk processing apparatus, method, and computer-readable medium.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”There are provided an optical disk from which high-density data is reproduced and a reproduction apparatus that reproduces data from such an optical disk having high-density data recorded thereon. A photo-detecting section has two split detectors A and B in the direction of tracks on the disk. A signal processing section generates a TPP, (Tangential Push-pull) signal made of a differential signal derived from detection signals from the detectors A and B, and further generates a reproduced signal by extracting from the TPP signal a high-frequency component signal in a record signal recorded on the disk. The signal processing section reconstitutes a high-frequency component signal in the record signal recorded on the disk by frequency-shifting the TPP signal obtained as a readout signal from a superimposed signal having the carrier signal and the record signal superimposed with each other.”

The patent application was filed on November 21, 2016 (15/766,696).