Optical disc recording apparatus
Номер патента: MY107086A
Опубликовано: 30-09-1995
Автор(ы): Iimura Shinichiro, Ogawa Hiroshi
Принадлежит: Sony Corp
Опубликовано: 30-09-1995
Автор(ы): Iimura Shinichiro, Ogawa Hiroshi
Принадлежит: Sony Corp
Реферат: AN OPTICAL DISC RECORDING APPARATUS FOR RECORDING INFORMATION SIGNALS ON AN OPTICAL DISC HAVING AN OPTICAL RECORDING MEDIUM WITH A LARGER THERMAL TIME CONSTANT, SUCH AS AN ORGANIC DYESTUFF BASE MATERIAL, BY IRRADIATING THE DISC WITH A RECORDING LIGHT MODULATED BY SIGNALS PRODUCED BY EIGHT FOURTEEN MODULATION OF INFORMATION SIGNALS, IS DISCLOSED. THE APPARATUS INCLUDES A RECORDING PULSE FORMING UNIT FOR FORMING RECORDING PULSES FROM THE EIGHT FOURTEEN MODULATED SIGNALS, WHICH RECORDING PULSES ARE OF PULSE WIDTHS SHORTER THAN THE EIGHT FOURTEEN MODULATED SIGNALS BY A PULSE WIDTH CORRESPONDING TO THE ELONGATION FROM THE REGULAR LENGTH OF A PIT FORMED ON THE RECORDING MEDIUM ON THE BASIS OF THE EIGHT FOURTEEN MODULATED SIGNALS, AND AN OPTICAL HEAD SUPPLIED WITH THE RECORDING PULSES FORMED BY THE PULSE FORMING UNIT FOR PRODUCING THE LIGHT WHICH HAS BEEN EIGHT PULSE WIDTH MODULATED BY THE RECORDING PULSES.( FIG. 3 )
Optical disc apparatus and tracking control method
Номер патента: US20090086599A1. Автор: Yoshinori Tazaki. Владелец: Toshiba Corp. Дата публикации: 2009-04-02.