HIGH PASS FILTERING DEVICE FOR AN OPTICAL DISC DRIVE
    31.
    发明申请
    HIGH PASS FILTERING DEVICE FOR AN OPTICAL DISC DRIVE 审中-公开
    用于光盘驱动器的高通滤波器件

    公开(公告)号:US20070291622A1

    公开(公告)日:2007-12-20

    申请号:US11758094

    申请日:2007-06-05

    CPC classification number: G11B7/0943 G11B7/0903 G11B7/0909 G11B7/1263

    Abstract: A high pass filtering device for an optical disc drive comprises a first low pass filter (LPF) of a first sampling rate, filtering a digital input signal; a down-sampler receiving a first filtered signal form the first LPF to down-sample the first filtered signal by an integer factor N; a second LPF of a second sampling rate, filtering a first down-sampled signal from the down-sampler, wherein the second LPF has a corner frequency corresponding to a desired frequency of the high pass filtering device, and the second sampling rate is equal to 1/N times the first sampling rate; an up-sampler receiving a second filtered signal from the second LPF to up-sample the second filtered signal by the factor N; and a subtractor subtracting an up-sampled signal output by the up-sampler from the digital input signal when the filter frequency is below a threshold frequency.

    Abstract translation: 用于光盘驱动器的高通滤波装置包括第一采样率的第一低通滤波器(LPF),对数字输入信号进行滤波; 下采样器从第一LPF接收第一滤波信号,以对第一滤波信号进行下采样整数因子N; 第二采样率的第二LPF,滤波来自下采样器的第一下采样信号,其中第二LPF具有对应于高通滤波器件的期望频率的转角频率,第二采样率等于 1 / N次第一次采样率; 上采样器接收来自第二LPF的第二滤波信号,以将第二滤波信号向上采样因子N; 以及当滤波器频率低于阈值频率时,减法器从数字输入信号中减去上采样器输出的上采样信号。

    Read-only optical recording medium with ZnO near-field optical interaction layer
    33.
    发明授权
    Read-only optical recording medium with ZnO near-field optical interaction layer 失效
    具有ZnO近场光学相互作用层的只读光学记录介质

    公开(公告)号:US07027386B2

    公开(公告)日:2006-04-11

    申请号:US10330151

    申请日:2002-12-30

    Abstract: This invention relates to a read-only near-field optical disk using a zinc-oxide (ZnO) nano-structured thin film as the localized near-field optical interaction layer. This read-only near-field optical disk is a multi-layered body at least comprising; (a) a transparent substrate with pre-recorded pits or marks; (b) a reflection thin film; (c) a zinc-oxide (ZnO) nano-structured thin film which is capable of causing localized near-field optical interactions; (d) a first and a second protective and spacer layers formed above or below the localized near-field optical interaction layer, which are also made of transparent dielectric material. Ultrahigh density near-field optical readout can be achieved by localized near-field optical interaction between the zinc-oxide (ZnO) nano-structured thin film and the reflection layer on pre-recorded structure.

    Abstract translation: 本发明涉及使用氧化锌(ZnO)纳米结构薄膜作为局部近场光学相互作用层的只读近场光盘。 该只读近场光盘是多层体,至少包括: (a)具有预先记录的凹坑或痕迹的透明基底; (b)反射薄膜; (c)能够引起局部近场光学相互作用的氧化锌(ZnO)纳米结构薄膜; (d)形成在局部近场光学相互作用层之上或之下的第一和第二保护层和间隔层,其也由透明电介质材料制成。 可以通过在预记录结构上的氧化锌(ZnO)纳米结构薄膜和反射层之间的局部近场光学相互作用来实现超高密度近场光学读出。

    Write-once optical recording medium with ZnO near-field optical interaction layer
    34.
    发明授权
    Write-once optical recording medium with ZnO near-field optical interaction layer 失效
    一次光学记录介质,具有ZnO近场光学相互作用层

    公开(公告)号:US06938266B2

    公开(公告)日:2005-08-30

    申请号:US10337785

    申请日:2003-01-08

    Abstract: This invention is a write-once near-field optical medium using a zinc oxide nano-structured thin film as the localized near-field optical interaction layer. This write-once near-field optical medium is a multi-layered body at least comprising: (a) a substrate of transparent material; (b) a first protective and spacer layer formed on one surface of the substrate, which is made of transparent dielectric material; (c) a zinc oxide nano-structured thin film which is capable of causing localized near-field optical interactions; (d) a second protective and spacer layer formed on the localized near-field optical interaction layer, which is also made of transparent dielectric material; (e) a write-once recording layer; (f) a third protective and spacer layer formed on the write-once recording layer, which is also made of transparent dielectric material. Ultra-high density near-field optical recording can be achieved by the localized near-field optical interactions of the zinc-oxide (ZnO) nano-structured thin film that is in the near-field region of the write-once recording layer.

    Abstract translation: 本发明是使用氧化锌纳米结构薄膜作为局部近场光学相互作用层的一次写入式近场光学介质。 这种一次写入的近场光学介质是多层体,至少包括:(a)透明材料的基底; (b)形成在由透明电介质材料制成的衬底的一个表面上的第一保护和隔离层; (c)能够引起局部近场光学相互作用的氧化锌纳米结构薄膜; (d)形成在局部近场光学相互作用层上的第二保护和间隔层,其也由透明电介质材料制成; (e)一次写入记录层; (f)形成在一次记录层上的第三保护层和间隔层,其也由透明介电材料制成。 可以通过在一次写入记录层的近场区域中的氧化锌(ZnO)纳米结构薄膜的局部近场光学相互作用来实现超高密度近场光学记录。

    Near-field super-resolution optical cover glass slip or mount
    35.
    发明授权
    Near-field super-resolution optical cover glass slip or mount 有权
    近场超分辨率光学盖玻璃滑盖或安装座

    公开(公告)号:US06737167B2

    公开(公告)日:2004-05-18

    申请号:US10307370

    申请日:2002-12-02

    CPC classification number: C03C17/3417 C03C17/3435 G01Q60/22 G02B21/34

    Abstract: This invention is a super-resolution optical cover glass slip or mount which can resolve the optical information on a sample surface without diffraction limit. This super-resolution optical cover glass slip or mount is a multi-layered body at least comprising: (a) a substrate of transparent material; (b) a first protective and spacer layer formed on one surface of the substrate, which is made from transparent dielectric material; (c) a nano structure thin film which is capable of causing localized non-linear near-field optical interaction; (d) a second protective and spacer layer formed on the localized non-linear near-field optical interaction layer, which is also made from transparent dielectric material.

    Abstract translation: 本发明是一种超分辨率光学玻璃滑盖或安装座,可以解析样品表面上的光学信息而无衍射极限。 这种超分辨率光学盖玻璃滑盖或支架是多层体,至少包括:(a)透明材料的基底; (b)由透明介电材料制成的在基板的一个表面上形成的第一保护和隔离层; (c)能够引起局部非线性近场光学相互作用的纳米结构薄膜; (d)形成在局部非线性近场光学相互作用层上的第二保护和间隔层,其也由透明介电材料制成。

    APPARATUS AND METHOD FOR DEMODULATING INPUT SIGNAL MODULATED FROM REFERENCE SIGNAL AND DATA SIGNAL
    37.
    发明申请
    APPARATUS AND METHOD FOR DEMODULATING INPUT SIGNAL MODULATED FROM REFERENCE SIGNAL AND DATA SIGNAL 有权
    用于解调参考信号和数据信号调制输入信号的装置和方法

    公开(公告)号:US20090296545A1

    公开(公告)日:2009-12-03

    申请号:US12129666

    申请日:2008-05-29

    Abstract: An apparatus and method for demodulating an input signal modulated from a reference signal and a data signal are disclosed. The apparatus includes a determining unit, a first calculating unit, and a comparing unit. The determining unit is utilized for determining a plurality of first calculating timings of changing different calculating modes according to the input signal. The first calculating unit is coupled to the determining unit and utilized for generating a first calculating result of the input signal according to the first calculating timings and the calculating modes thereof. The comparing unit is coupled to the first calculating unit and utilized for generating a comparing result according to the first calculating result of the input signal and a threshold setting, and for outputting a demodulated data of the input signal according to the comparing result.

    Abstract translation: 公开了一种用于解调从参考信号和数据信号调制的输入信号的装置和方法。 该装置包括确定单元,第一计算单元和比较单元。 确定单元用于根据输入信号确定改变不同计算模式的多个第一计算定时。 第一计算单元耦合到确定单元,用于根据第一计算定时及其计算模式产生输入信号的第一计算结果。 比较单元耦合到第一计算单元,用于根据输入信号的第一计算结果和阈值设置产生比较结果,并且用于根据比较结果输出输入信号的解调数据。

    ASYMMETRY MEASUREMENT APPARATUS
    38.
    发明申请
    ASYMMETRY MEASUREMENT APPARATUS 审中-公开
    不对称测量装置

    公开(公告)号:US20070280079A1

    公开(公告)日:2007-12-06

    申请号:US11758006

    申请日:2007-06-05

    CPC classification number: G11B20/10009 G11B2220/2537

    Abstract: An asymmetry measurement apparatus is disclosed. The asymmetry measurement apparatus is designed for detecting the recorded data reproduction waveform of an optical storage device in digital domain. The asymmetry measurement apparatus includes an Analog to Digital Converter (ADC) for converting an analog signal to a digital signal; a detection unit for detecting plurality values of the digital signal; and an asymmetry calculation unit for generating an asymmetry value of the digital signal according to the plurality values.

    Abstract translation: 公开了一种不对称测量装置。 不对称测量装置被设计用于检测数字域中的光存储装置的记录数据再现波形。 不对称测量装置包括用于将模拟信号转换为数字信号的模数转换器(ADC); 检测单元,用于检测数字信号的多个值; 以及不对称计算单元,用于根据多个值产生数字信号的不对称值。

    APPARATUS AND METHODS FOR LIGHT SPOT SERVO SIGNAL DETECTION
    39.
    发明申请
    APPARATUS AND METHODS FOR LIGHT SPOT SERVO SIGNAL DETECTION 有权
    用于轻点服务信号检测的装置和方法

    公开(公告)号:US20070280059A1

    公开(公告)日:2007-12-06

    申请号:US11757426

    申请日:2007-06-04

    Abstract: An apparatus for light spot servo signal detection for reading an optical recording medium having a plurality of non-writable areas between writable data areas containing address information. An optical pickup provides a light spot to the non-writable areas of the optical recording medium with a predetermined state according to a control signal, and detects optical reflecting signals from the optical recording medium to generate a detection signal. A signal adjusting module offsets signal levels of the detection signal to an operating range to generate an offset shifted detection signal. An analog to digital converter digitizes the offset shifted detection signal to generate a digital signal. A detection circuit detects the servo detection signal according to the digital signal.

    Abstract translation: 一种光点伺服信号检测装置,用于读取在包含地址信息的可写数据区之间具有多个不可写区域的光记录介质。 光拾取器根据控制信号以预定状态向光记录介质的不可写区域提供光点,并且检测来自光记录介质的光反射信号以产生检测信号。 信号调整模块将检测信号的信号电平偏移到工作范围以产生偏移移位的检测信号。 模数转换器对偏移检测信号进行数字化以产生数字信号。 检测电路根据数字信号检测伺服检测信号。

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