Method and circuit for digitally correcting the frequency of a signal
    71.
    发明授权
    Method and circuit for digitally correcting the frequency of a signal 有权
    用于数字校正信号频率的方法和电路

    公开(公告)号:US07173982B1

    公开(公告)日:2007-02-06

    申请号:US10089805

    申请日:2000-10-11

    Abstract: A method and a circuit for the digital correction of a frequency of a signal, especially for use in a transmitter/receiver circuit include rotating a signal “pointer” (i0, q0) using a CORDIC algorithm, through a predetermined angle in a complex I/Q plane corresponding to a correction frequency. The CORDIC algorithm includes micro-rotation blocks corresponding to N stages, and a character table and a register.

    Abstract translation: 用于数字校正信号的方法和电路,特别是用于发射机/接收机电路中的频率的数字校正包括使用CORDIC算法在复合体I中以预定的角度旋转信号“指针”(i0,q0) / Q平面对应于校正频率。 CORDIC算法包括对应于N个级的微旋转块,以及一个字符表和一个寄存器。

    Mobile phone having an image capture device
    72.
    发明申请
    Mobile phone having an image capture device 审中-公开
    具有摄像装置的手机

    公开(公告)号:US20070002127A1

    公开(公告)日:2007-01-04

    申请号:US11156723

    申请日:2005-06-21

    Applicant: Bin Yang David Ho

    Inventor: Bin Yang David Ho

    Abstract: A mobile phone includes an image capture device; a communication module for connecting to a distal sever via a base station system, the server transmitting a specific piece of the geographic information to the mobile phone via the base station system after identifying a location of the communication module; and a data-combining module for combining an image captured by the image capture device and the specific piece of the geographic information within the mobile phone such that when the image is printed in a photo format, the photo includes the specific piece of the geographic information.

    Abstract translation: 手机包括图像捕获装置; 用于经由基站系统连接到远端服务器的通信模块,所述服务器在识别出所述通信模块的位置之后,经由所述基站系统将所述地理信息的特定片段发送到所述移动电话; 以及数据合成模块,用于将由图像捕获装置拍摄的图像与移动电话内的特定地理信息组合,使得当以照片格式打印图像时,照片包括特定的地理信息 。

    Method for detection of pilot tones
    76.
    发明授权
    Method for detection of pilot tones 有权
    检测导频音的方法

    公开(公告)号:US06396883B2

    公开(公告)日:2002-05-28

    申请号:US09930411

    申请日:2001-08-15

    CPC classification number: H04B1/76 H04L25/061 H04L27/22

    Abstract: A method identifies a pulse sequence having known values and a known length in a signal. According to this method, the mathematical sign of the phase difference between samples of the signal is used to estimate whether the transmitted pulse is a 1 or a 0. Undersampling, carried out to a selectable extent, produces a relatively insensitive response to adjacent channel interference. The sum of the pulses in a window which is proportional to the length of the pulse sequence and to the extent of the undersampling is determined, with the pulse sequence being regarded as being identified at the point in time at which the sum of the pulses in this search window exceeds a threshold value.

    Abstract translation: 方法识别在信号中具有已知值和已知长度的脉冲序列。 根据该方法,使用信号样本之间的相位差的数学符号来估计所发送的脉冲是1或是0。在可选范围内进行的取样对相邻信道干扰产生相对不敏感的响应 。 确定窗口中与脉冲序列的长度成比例的脉冲与欠采样的范围之间的脉冲之和,其中脉冲序列被认为是在时间上的脉冲之和 该搜索窗口超过阈值。

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