Wobble signal reproducing circuit
    1.
    发明申请
    Wobble signal reproducing circuit 有权
    摆动信号再现电路

    公开(公告)号:US20070030769A1

    公开(公告)日:2007-02-08

    申请号:US11546289

    申请日:2006-10-12

    IPC分类号: G11B7/00

    摘要: The present invention has an object to stably reproduce wobble signals of all disks of CD-R/RW, DVD-R/RW and DVD-RAM by one wobble signal reproducing circuit. In the wobble signal reproducing circuit, an AGC (AUTOMATIC GAIN CONTROL) circuit for equating a push-pull circuit output of a wide range and an RF amplitude of an optical detector output of two systems obtained by push-pull, and an AGC (AUTOMATIC GAIN CONTROL) circuit for making a wobble amplitude uniform are provided with a function to hold a gain or to change over a response time constant, and at the time of reproduction of the DVD-R/RW, a land pre-pit region is detected by the push-pull output to hold AGC (AUTOMATIC GAIN CONTROL) or change over a response time constant. Besides, in an address information recording region (PID region) at the time of reproduction of the DVD-RAM, the AGC (AUTOMATIC GAIN CONTROL) is held or the response time constant is changed over.

    摘要翻译: 本发明的目的是通过一个摆动信号再现电路来稳定地再现CD-R / RW,DVD-R / RW和DVD-RAM的所有磁盘的摆动信号。 在摆动信号再现电路中,用于将宽范围的推挽电路输出与通过推挽获得的两个系统的光检测器输出的RF幅度和AGC(AUTOMATIC)之间进行等效的AGC(自动增益控制)电路 提供摆动幅度均匀的增益控制电路具有保持增益或改变响应时间常数的功能,并且在再现DVD-R / RW时,检测到纹间预制凹坑区域 通过推挽输出保持AGC(自动增益控制)或更改响应时间常数。 此外,在再现DVD-RAM时的地址信息记录区域(PID区域)中,保持AGC(自动增益控制)或者改变响应时间常数。

    Wobble signal reproducing circuit
    2.
    发明授权
    Wobble signal reproducing circuit 有权
    摆动信号再现电路

    公开(公告)号:US06785207B2

    公开(公告)日:2004-08-31

    申请号:US09794393

    申请日:2001-02-28

    IPC分类号: G11B509

    摘要: The present invention has an object to stably reproduce wobble signals of all disks of CD-R/RW, DVD-R/RW and DVD-RAM by one wobble signal reproducing circuit. In the wobble signal reproducing circuit, an AGC (AUTOMATIC GAIN CONTROL) circuit for equating a push-pull circuit output of a wide range and an RF amplitude of an optical detector output of two systems obtained by push-pull, and an AGC circuit for making a wobble amplitude uniform are provided with a function to hold a gain or to change over a response time constant, and an address information recording region (PID region) at the time of reproduction, the AGC (AUTOMATIC GAIN CONTROL) is held or the response time constant is changed over.

    摘要翻译: 本发明的目的是通过一个摆动信号再现电路来稳定地再现CD-R / RW,DVD-R / RW和DVD-RAM的所有磁盘的摆动信号。 在摆动信号再现电路中,用于将宽范围的推挽电路输出与通过推挽获得的两个系统的光检测器输出的RF振幅等价的AGC(自动增益控制)电路和用于 提供了摆动幅度均匀性,具有保持增益或改变响应时间常数的功能,以及再现时的地址信息记录区域(PID区域),AGC(自动增益控制)被保持或 响应时间常数被改变。

    Wobble signal reproducing circuit

    公开(公告)号:US07295499B2

    公开(公告)日:2007-11-13

    申请号:US11546289

    申请日:2006-10-12

    IPC分类号: G11B7/00

    摘要: The present invention has an object to stably reproduce wobble signals of all disks of CD-R/RW, DVD-R/RW and DVD-RAM by one wobble signal reproducing circuit. In the wobble signal reproducing circuit, an AGC (AUTOMATIC GAIN CONTROL) circuit for equating a push-pull circuit output of a wide range and an RF amplitude of an optical detector output of two systems obtained by push-pull, and an AGC (AUTOMATIC GAIN CONTROL) circuit for making a wobble amplitude uniform are provided with a function to hold a gain or to change over a response time constant, and at the time of reproduction of the DVD-R/RW, a land pre-pit region is detected by the push-pull output to hold AGC (AUTOMATIC GAIN CONTROL) or change over a response time constant. Besides, in an address information recording region (PID region) at the time of reproduction of the DVD-RAM, the AGC (AUTOMATIC GAIN CONTROL) is held or the response time constant is changed over.

    Wobble signal reproducing circuit
    4.
    发明授权
    Wobble signal reproducing circuit 有权
    摆动信号再现电路

    公开(公告)号:US07133335B2

    公开(公告)日:2006-11-07

    申请号:US10836213

    申请日:2004-05-03

    IPC分类号: G11B7/05 G11B19/02

    摘要: The present invention has an object to stably reproduce wobble signals of all disks of CD-R/RW, DVD-R/RW and DVD-RAM by one wobble signal reproducing circuit. In the wobble signal reproducing circuit, an AGC (AUTOMATIC GAIN CONTROL) circuit for equating a push-pull circuit output of a wide range and an RF amplitude of an optical detector output of two systems obtained by push-pull, and an AGC (AUTOMATIC GAIN CONTROL) circuit for making a wobble amplitude uniform are provided with a function to hold a gain or to change over a response time constant, and at the time of reproduction of the DVD-R/RW, a land pre-pit region is detected by the push-pull output to hold AGC (AUTOMATIC GAIN CONTROL) or change over a response time constant. Besides, in an address information recording region (PID region) at the time of reproduction of the DVD-RAM, the AGC (AUTOMATIC GAIN CONTROL) is held or the response time constant is changed over.

    摘要翻译: 本发明的目的是通过一个摆动信号再现电路来稳定地再现CD-R / RW,DVD-R / RW和DVD-RAM的所有磁盘的摆动信号。 在摆动信号再现电路中,用于将宽范围的推挽电路输出与通过推挽获得的两个系统的光检测器输出的RF幅度和AGC(AUTOMATIC)之间进行等效的AGC(自动增益控制)电路 提供摆动幅度均匀的增益控制电路具有保持增益或改变响应时间常数的功能,并且在再现DVD-R / RW时,检测到纹间预制凹坑区域 通过推挽输出保持AGC(自动增益控制)或更改响应时间常数。 此外,在再现DVD-RAM时的地址信息记录区域(PID区域)中,保持AGC(自动增益控制)或者改变响应时间常数。

    Adaptive equalizer circuit
    5.
    发明授权
    Adaptive equalizer circuit 失效
    自适应均衡器电路

    公开(公告)号:US06904086B2

    公开(公告)日:2005-06-07

    申请号:US09812694

    申请日:2001-03-21

    摘要: An adaptive equalizer processing an input having a fluctuating amplitude realizes a stable adaptive equalization operation without changing over a reference value for computing an equalization error. An input signal is held as a sample with a timing signal shifted from a reference clock of the input signal by a phase of ½ cycle. An equalization output is compute from sample data. The difference between only the first output value after a zero-crossing and an arbitrary reference value is computed, and the computed value is set as an equalization error. A coefficient of the adaptive equalization circuit is updated from the equalization error and the sample data. To stabilize for displacement of symmetry of the input, the reference value of the equalizer is changed corresponding to the change of a digitization threshold value of a digitization circuit which constitutes a rear stage of the adaptive equalizer.

    摘要翻译: 处理具有波动幅度的输入的自适应均衡器实现稳定的自适应均衡操作,而不改变用于计算均衡误差的参考值。 输入信号被保持为具有从输入信号的参考时钟偏移了1/2周期的定时信号作为样本。 从样本数据计算均衡输出。 计算零过零之后的第一输出值与任意的基准值之间的差,并将计算出的值设定为均衡误差。 根据均衡误差和样本数据更新自适应均衡电路的系数。 为了稳定输入的对称位移,均衡器的参考值根据构成自适应均衡器的后级的数字化电路的数字化阈值的变化而改变。

    Radiation-sensitive resin composition
    7.
    发明授权
    Radiation-sensitive resin composition 失效
    辐射敏感树脂组合物

    公开(公告)号:US5958645A

    公开(公告)日:1999-09-28

    申请号:US917727

    申请日:1997-08-27

    IPC分类号: G03F7/022 G03F7/023

    CPC分类号: G03F7/0226

    摘要: A radiation-sensitive resin composition comprising:(i) an alkali-soluble resin;(ii) a phenol compound represented by the following formula (1): ##STR1## wherein R.sub.1 to R.sub.4 each represent halogen, alkyl, alkoxyl, aryl, nitro, cyano, hydroxyalkyl, hydroxyalkoxyl or hydroxyl; a, b, c and d each represent an integer of 0 to 4 and satisfying 0.ltoreq.a+b.ltoreq.4 and 0.ltoreq.c+d.ltoreq.4, provided that when a+b is 1 and c+d is 1 at least one of R.sub.1 (or R.sub.2) and R.sub.3 (or R.sub.4) is alkyl, hydroxyalkyl or hydroxyalkoxyl; R.sub.5 to R.sub.10 each represent hydrogen, alkyl or aryl; and X.sub.1 and X.sub.2 each represent oxygen or sulfur atom; and(iii) a 1,2-quinonediazide compound. This composition has good resolution, sensitivity and developability, as well as has as a positive resist good focal latitude and heat resistance. The patterns formed have good shapes, and the composition may cause no fine particles during storage.

    摘要翻译: 一种辐射敏感性树脂组合物,其包含:(i)碱溶性树脂; (ii)由下式(1)表示的酚化合物:其中R1至R4各自表示卤素,烷基,烷氧基,芳基,硝基,氰基,羟烷基,羟基烷氧基或羟基; a,b,c和d分别表示0〜4的整数,满足0

    Wireless LAN system for virtual LAN
    8.
    发明授权
    Wireless LAN system for virtual LAN 失效
    用于虚拟LAN的无线LAN系统

    公开(公告)号:US07216159B2

    公开(公告)日:2007-05-08

    申请号:US10456494

    申请日:2003-06-09

    IPC分类号: G06F15/173 G06F11/00

    CPC分类号: H04L12/4645

    摘要: An access point comprises a data table in which a correspondence relationship between a terminal ID specific to each mobile terminal and a virtual ID specific to a virtual LAN group to which each mobile terminal belongs, identifies a terminal. ID registered in a packet received from the mobile terminal, inserts a virtual LAN tag in the received packet, extracts the virtual ID corresponding to the terminal ID from the data table to register in the virtual LAN tag, and transfers it to switching means. The switching means selects an output port of the received packet based on the virtual ID registered in the virtual LAN tag of the received packet, and deletes the virtual LAN tag from the received packet and sends it.

    摘要翻译: 接入点包括数据表,其中每个移动终端特有的终端ID与每个移动终端所属的虚拟LAN组特有的虚拟ID之间的对应关系识别终端。 ID登记在从移动终端接收的分组中,在接收到的分组中插入虚拟LAN标签,从数据表提取与终端ID相对应的虚拟ID,以登记到虚拟LAN标签中,并将其传送到切换装置。 切换装置根据登录在接收到的分组的虚拟LAN标签中的虚拟ID来选择接收到的分组的输出端口,并从接收到的分组中删除虚拟LAN标签并将其发送。