WOBBLE DETECTION CIRCUIT AND METHOD FOR PROCESSING WOBBLE SIGNALS
    72.
    发明申请
    WOBBLE DETECTION CIRCUIT AND METHOD FOR PROCESSING WOBBLE SIGNALS 失效
    WOBBLE检测电路和处理无线信号的方法

    公开(公告)号:US20070280070A1

    公开(公告)日:2007-12-06

    申请号:US11755202

    申请日:2007-05-30

    IPC分类号: G11B20/10

    摘要: The invention provides a wobble detection circuit. An exemplary embodiment of the wobble detection circuit comprises an automatic gain control module, an analog to digital converter, a digital band pass filter, and a digital band pass filter. The automatic gain control module amplifies a first input signal and a second input signal detected by a pickup head to the same magnitude to obtain a first amplified signal and a second amplified signal. The adder then subtracts the second amplified signal from the first amplified signal to obtain an analog wobble signal. The analog to digital converter then converts the analog wobble signal to a first digital wobble signal. Finally, the digital band pass filter accepts frequency components of the first digital wobble signal within a pass band and rejects frequency components of the first digital wobble signal outside the pass band to obtain a second digital wobble signal.

    摘要翻译: 本发明提供一种摆动检测电路。 摆动检测电路的示例性实施例包括自动增益控制模块,模数转换器,数字带通滤波器和数字带通滤波器。 自动增益控制模块将由拾取头检测到的第一输入信号和第二输入信号放大到相同的大小以获得第一放大信号和第二放大信号。 然后,加法器从第一放大信号中减去第二放大信号以获得模拟摆动信号。 然后,模数转换器将模拟摆动信号转换为第一数字摆动信号。 最后,数字带通滤波器接收通带内的第一数字摆动信号的频率分量,并且抑制通带外的第一数字摆动信号的频率分量,以获得第二数字摆动信号。

    Handset sliding structure
    73.
    发明申请
    Handset sliding structure 失效
    手机滑动结构

    公开(公告)号:US20060072285A1

    公开(公告)日:2006-04-06

    申请号:US10956060

    申请日:2004-10-04

    IPC分类号: H05K7/16

    CPC分类号: H04M1/0237

    摘要: The present invention provides a handset sliding structure for mobile devices comprising a cover, a base and a slider. Therein, a surface of the base comprises two opposing sliding tracks having a narrow section, the shortest distance between them. The cover is slid on the base along the sliding tracks with a slider in between. The slider comprises an elastic member and two ends abutting against the two opposing sliding tracks. Sliding the cover, it can be automatically moved to a predestined end position for opening or closing.

    摘要翻译: 本发明提供了一种用于包括盖,底座和滑块的移动设备的手机滑动结构。 其中,底座的表面包括具有窄截面的两个相对的滑动轨道,它们之间的最短距离。 盖子沿着滑动轨道在基座上滑动,滑块位于两者之间。 滑动器包括弹性构件和抵靠两个相对的滑动轨道的两个端部。 滑动盖子,可以自动移动到预定的结束位置以打开或关闭。