Katten Muchin Zavis Rosenman
Method and apparatus for recording optical information by varying recording pulse width
A method and an apparatus capable of recording optical information at high density are disclosed. A recording pulse which includes a top pulse followed by a multiple pulse set is generated to form a pit, wherein, based on the distance from the top pulse, either pulse widths of pulses within the multiple pulse set are set to be sequentially smaller or pulse intervals of pulses within the multiple pulse set are set to be sequentially larger.
Taiyo Yuden Co., Ltd.
G G
G11B G11B
inventional inventional
Masahiko Ryou Toru
Hirano Negishi Fujii