Panasonic Intellectual Property Management Assigned Patent

Panasonic Intellectual Property Management Co., Ltd., Osaka, Japan, has been assigned a patent (11,393,505) developed by Nakamura, Atsushi, and Kokura, Takeshi, Okayama, Japan, for “optical disk recording method, optical disk device, and integrated circuit.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A mark corresponding to recording data is formed on an optical disk by: encoding the recording data in accordance with a modulation code and generating encoded data, classifying the encoded data by a combination of at least two of a mark length of a mark, a space length of a preceding space, the mark length of a preceding mark, and the space length of a succeeding space, setting a correction amount for adjusting the position of the start edge and the end edge of a recording pulse based on an evaluation index of a decoding result, which is a result of decoding a reproduction signal of the encoded data, for each of the classification, and generating the recording pulse corresponding to the encoded data by using the correction amount corresponding to the classification of the run length of the encoded data.”

The patent application was filed on April 28, 2021 (17/242,787).