发明名称 |
PROCESSO DE ESCRITA ADAPTATIVO PARA UMA APARELHAGEM ÓTICA DE ALTA DENSIDADE E UM CIRCUITO PARA O MESMO, E MAIS PARTICULARMENTE, A UM PROCESSO DE ESCRITA ADAPTATIVO PARA OTIMIZAÇÃO DA POTÊNCIA LUMINOSA DE UMA FONTE LUMINOSA, POR EXEMPLO, UM DIODO DE LASER, QUE SEJA ADEQUADO ÀS CARACTERÍSTICAS DE UMA APARELHAGEM DE REGISTRO, E UM CIRCUITO PARA O MESMO. |
摘要 |
<p>An adaptive writing method for a high-density optical recording apparatus and a circuit thereof are provided. The circuit includes a discriminator (102) for discriminating the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces, a generator (104,108) for controlling the waveform of the write pulse in accordance with the magnitude of the present mark of the input data and the magnitudes of the leading and/or trailing spaces to generate an adaptive write pulse, and a driver (110) for driving the light source by converting the adaptive write pulse into a current signal in accordance with driving power levels for the respective channels. The widths of the first and/or last pulses of a write pulse waveform are varied in accordance with the magnitude of the present mark of input NRZI data and the magnitude of the leading and/or trailing spaces, thereby minimizing jitter to enhance system reliability and performance.</p> |
申请公布号 |
BR9902936(B1) |
申请公布日期 |
2015.02.18 |
申请号 |
BR19999902936 |
申请日期 |
1999.07.23 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SEONG-SIN JOO;DU-SEOP YOON;MYUNG-DO ROH;YONG-JIN AHN;SEOUNG-SOO KIM;KYUNG-GEUN LEE;MYEONG-HO CHO;CHANG-JIN YANG;JONG-KYU KIM;SUNG-RO KO;TATSUHIRO OTSOKA;JIN-GYO SEO |
分类号 |
G11B7/00;G11B7/125;G11B7/0045;G11B7/006;G11B7/007;G11B20/10;G11B20/12;G11B20/14 |
主分类号 |
G11B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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