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发明授权
CN101064133B 光盘装置 失效 - 权利终止 转让

光盘装置
摘要：
本发明所涉及的光盘装置，如图1及图2所示，具备除去从拾取头的各受光元件输出的信号的低频分量，在由高速低位的AD变换器进行AD变换之后生成通过数字处理进行光盘的记录和再生所必需的各种信号的高频带处理电路；以及除去从拾取头的各受光元件输出的信号的高频分量，在由低速高位的AD变换器进行AD变换之后生成通过数字处理进行光盘的记录和再生所必需的各种信号的低频带处理电路。结果，可以以一个电路生成光盘的记录及再生所必需的各种信号，所以可以实现产品的低成本化、低功耗化和电路规模小型化。
摘要（英）：

As shown in 1 and 2, an optical disc device includes: a high-frequency band processing circuit for removing a low-frequency component of a signal output from each light receiving element of a pickup, performing AD conversion by a high-speed low-bit AD converter, and after this, generating various signals required for recording/reproduction of the optical disc by digital processing; and a low-frequency band processing circuit for removing a high-frequency component of a signal output from each light receiving element of the pickup, performing AD conversion by a low-speed high-bit AD converter, and after this, generating various signals required for recording/reproduction of the optical disc by digital processing. Thus, by using a single circuit, it is possible to generate various signalsrequired for recording/reproduction of an optical disc, thereby reducing the product cost, power consumption, and the circuit size.

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