公开(公告)号：US07869006B2

公开(公告)日：2011-01-11

申请号：US12202645

申请日：2008-09-02

申请人： Hong Ki Kim ,  Chan Yong Park ,  Seung Won Lee ,  Sun Ki Min

发明人： Hong Ki Kim ,  Chan Yong Park ,  Seung Won Lee ,  Sun Ki Min

IPC分类号： G01C3/08

CPC分类号： G01B11/026 ,  G01S7/497 ,  G01S17/10

摘要： A laser measuring device maintains high responsivity irrespective of changes in surrounding environment, provides more correct measurement and long distance measurement due to reduced noise, and ensures the safety and reliability of a product. A first light emitter emits first wavelength light having a first wavelength. A second light emitter emits second wavelength light having a second wavelength, the second light emitter being arranged perpendicular to the first light emitter. An optical mirror allows one of the first wavelength light and the second wavelength light to pass but reflecting the other one. A first band pass filter for allows the first wavelength light to pass. A second band pass filter allows the second wavelength light to pass. A light receiver receives incident light, which arrives through one of the first and second band pass filters. A controller activates at least one of the first and second light emitters.

摘要翻译： 激光测量装置保持高响应度，不管周围环境如何变化，由于噪音降低，可提供更准确的测量和长距离测量，并确保产品的安全性和可靠性。 第一发光器发射具有第一波长的第一波长光。 第二发光体发射具有第二波长的第二波长光，第二光发射器垂直于第一光发射器布置。 光学镜允许第一波长光和第二波长光中的一个通过但反射另一个。 用于允许第一波长光通过的第一带通滤波器。 第二带通滤波器允许第二波长光通过。 光接收器接收通过第一和第二带通滤波器之一到达的入射光。 控制器激活第一和第二发光体中的至少一个。

公开(公告)号：US20090091739A1

公开(公告)日：2009-04-09

申请号：US12202645

申请日：2008-09-02

申请人： Hong Ki KIM ,  Chan Yong Park ,  Seung Won Lee ,  Sun Ki Min

发明人： Hong Ki KIM ,  Chan Yong Park ,  Seung Won Lee ,  Sun Ki Min

IPC分类号： G01C3/08

CPC分类号： G01B11/026 ,  G01S7/497 ,  G01S17/10

摘要： A laser measuring device maintains high responsivity irrespective of changes in surrounding environment, provides more correct measurement and long distance measurement due to reduced noise, and ensures the safety and reliability of a product. A first light emitter emits first wavelength light having a first wavelength. A second light emitter emits second wavelength light having a second wavelength, the second light emitter being arranged perpendicular to the first light emitter. An optical mirror allows one of the first wavelength light and the second wavelength light to pass but reflecting the other one. A first band pass filter for allows the first wavelength light to pass. A second band pass filter allows the second wavelength light to pass. A light receiver receives incident light, which arrives through one of the first and second band pass filters. A controller activates at least one of the first and second light emitters.

摘要翻译： 激光测量装置保持高响应度，不管周围环境如何变化，由于噪音降低，可提供更准确的测量和长距离测量，并确保产品的安全性和可靠性。 第一发光器发射具有第一波长的第一波长光。 第二发光体发射具有第二波长的第二波长光，第二光发射器垂直于第一光发射器布置。 光学镜允许第一波长光和第二波长光中的一个通过但反射另一个。 用于允许第一波长光通过的第一带通滤波器。 第二带通滤波器允许第二波长光通过。 光接收器接收通过第一和第二带通滤波器之一到达的入射光。 控制器激活第一和第二发光体中的至少一个。

公开(公告)号：US07860478B2

公开(公告)日：2010-12-28

申请号：US11873535

申请日：2007-10-17

申请人： Kyoo Hyun Lim ,  Sun Ki Min

发明人： Kyoo Hyun Lim ,  Sun Ki Min

IPC分类号： H04B1/10

CPC分类号： H03H7/21 ,  H03H7/20 ,  H03H2007/0192

摘要： Provided is a poly-phase filter capable of removing an image frequency of a terrestrial digital multimedia broadcasting (T-DMB) receiver in a low intermediate frequency (IF) structure applied to a mobile communication terminal and a receiver having the poly-phase filter. The poly-phase filter includes: a calibration control block for generating first and second filter characteristic control signals which determine electrical characteristics of the filter in response to a control signal including instructions for changing the characteristics of the poly-phase filter and holding the changed values; and a poly-phase filter block for performing filtering on a plurality of input signals having different phases from each other in response to the first and second filter characteristic control signals. Accordingly, the poly-phase filter has advantages of having constant electrical characteristics regardless of changes in a manufacturing process and temperature and a high-performance image rejection function.

摘要翻译： 提供了能够以应用于移动通信终端的低中频（IF）结构和具有多相滤波器的接收机来去除地面数字多媒体广播（T-DMB）接收机的图像频率的多相滤波器。 多相滤波器包括：校准控制块，用于产生第一和第二滤波器特征控制信号，该第一和第二滤波器特征控制信号响应于包括用于改变多相滤波器的特性的指令的控制信号确定滤波器的电特性并保持改变的值 ; 以及多相滤波器块，用于响应于第一和第二滤波器特性控制信号，对具有彼此不同相位的多个输入信号进行滤波。 因此，无论制造工艺和温度的变化以及高性能的图像抑制功能如何，多相滤波器具有恒定的电特性的优点。

公开(公告)号：US07873342B2

公开(公告)日：2011-01-18

申请号：US11871008

申请日：2007-10-11

申请人： Kyoo Hyun Lim ,  Sun Ki Min

发明人： Kyoo Hyun Lim ,  Sun Ki Min

IPC分类号： H04B1/18 ,  H04K3/00

CPC分类号： H04B1/30

摘要： Provided are an image signal rejection method capable of avoiding demodulation of an image signal along with a real signal in a radio frequency (RF) signal and a low IF receiver of rejecting an image signal by using the method. The low IF receiver of rejecting an image signal includes a low noise amplifier, a quadrature I/Q mixer, a signal complex filter, and a phase and gain control block. The low noise amplifier amplifies a radio frequency (RF) signal. The quadrature I/Q mixer generates an I signal and a Q signal by down-converting the amplified RF signal into an IF signal. The phase and gain control block generates an I′ signal and a Q′ signal which are obtained by changing phases and amplitudes of the I signal and the Q signal by using a real signal. The signal complex filter minimizing the image signal in the IF signal and passing the real signal by performing filtering on the I′ signal and the Q′ signal.

摘要翻译： 提供了一种图像信号抑制方法，其能够避免在射频（RF）信号中的实际信号以及通过使用该方法拒绝图像信号的低IF接收机解调图像信号。 拒绝图像信号的低IF接收机包括低噪声放大器，正交I / Q混频器，信号复数滤波器以及相位和增益控制块。 低噪声放大器放大射频（RF）信号。 正交I / Q混频器通过将放大的RF信号下变频成IF信号来产生I信号和Q信号。 相位和增益控制块产生通过使用实际信号改变I信号和Q信号的相位和振幅而获得的I'信号和Q'信号。 信号复合滤波器使IF信号中的图像信号最小化，并通过对I'信号和Q'信号进行滤波来传递实信号。