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1. 发明授权

US07599977B2 Direct digital synthesizer system and related methods 有权
标题翻译：直接数字合成器系统及相关方法
公开(公告)号：US07599977B2
公开(公告)日：2009-10-06
申请号：US11204674
申请日：2005-08-16
申请人： Danny F. Ammar
发明人： Danny F. Ammar
IPC分类号： G06F1/02
CPC分类号： G06F1/0328 , G06F1/0342 , G06F2211/902 , H03L7/16
摘要： A direct digital synthesizer (DDS) has reduced spurious signals and includes a DDS core that produces a digital representation of a signal to be synthesized. A plurality of DDS circuits are operatively connected to the DDS core, each having a digital-to-analog converter connected to the DDS core for receiving the digital representation and converting it into a signal. A modulator is operatively connected to an oscillator circuit and digital-to-analog converter for receiving signals from the digital-to-analog converter and producing a modulated output signal. The individual frequencies of the respective DDS circuits are randomly and continuously changed from each other. A mixer receives and mixes the modulated output signals from the plurality of DDS circuits to create a mixed output signal at a selected and fixed frequency.
摘要翻译：直接数字合成器（DDS）具有减少的杂散信号，并且包括产生要合成的信号的数字表示的DDS核。多个DDS电路可操作地连接到DDS核心，每个DDS核心具有连接到DDS核心的数模转换器，用于接收数字表示并将其转换成信号。调制器可操作地连接到振荡器电路和数 - 模转换器，用于从数模转换器接收信号并产生调制输出信号。相应的DDS电路的各个频率彼此随机和连续地变化。混频器接收并混合来自多个DDS电路的调制输出信号，以选择和固定的频率创建混合输出信号。

2. 发明授权

US07804442B2 Millimeter wave (MMW) screening portal systems, devices and methods 失效
标题翻译：毫米波（MMW）筛选门户系统，设备和方法
公开(公告)号：US07804442B2
公开(公告)日：2010-09-28
申请号：US12019401
申请日：2008-01-24
申请人： Danny F. Ammar
发明人： Danny F. Ammar
IPC分类号： H01Q17/00 , G01S13/00
CPC分类号： G01S13/887 , G01S13/34 , G01S13/89 , G01S17/89
摘要： A millimeter-wave (MMW) based screening system is provided that may operate with an active sensor, a passive sensor, or in a dual mode using both the active and passive sensors. One or more such sensors are mounted so as to rotate along an axis that passes through a target region of detection, in which a person or object is positioned for screening. A reflector is disposed radially outward from the one or more rotating sensors to reflect MMW radiation between the sensors and the target region. The system may be employed as a portal screening system, and may include a structure having a wall and a roof, for rapidly screening persons for concealed objects. Algorithms may be employed to provide data output that avoids privacy issues.
摘要翻译：提供了基于毫米波（MMW）的屏蔽系统，其可以使用主动传感器，无源传感器或使用主动和被动传感器的双重模式来操作。一个或多个这样的传感器被安装成沿着穿过目标检测区域的轴旋转，其中人或物体被定位用于筛选。反射器从一个或多个旋转传感器径向向外设置，以在传感器和目标区域之间反射MMW辐射。该系统可以用作门户筛选系统，并且可以包括具有壁和屋顶的结构，用于快速筛选隐藏对象的人。可以采用算法来提供避免隐私问题的数据输出。

3. 发明授权

US07603088B2 Multi-channel radiometer imaging system and MMIC chips for use thereof 失效
标题翻译：多通道辐射计成像系统和MMIC芯片
公开(公告)号：US07603088B2
公开(公告)日：2009-10-13
申请号：US11301385
申请日：2005-12-13
申请人： Danny F. Ammar
发明人： Danny F. Ammar
IPC分类号： H04B17/00 , H04Q11/12 , G01S3/02
CPC分类号： G01K11/006 , H01L2224/05554 , H01L2224/45015 , H01L2224/48137 , H01L2924/01019 , H01L2924/01079 , H01L2924/12032 , H01L2924/14 , H01L2924/1423 , H01L2924/19041 , H01L2924/00 , H01L2924/20752
摘要： A MMIC includes at least one quadrature hybrid in a plurality of series connected amplifiers connected in two parallel gain stages and operatively connected to the at least one quadrature hybrid such that gain is equalized in the two parallel gain stages.
摘要翻译： MMIC包括连接在两个并联增益级中的多个串联连接的放大器中的至少一个正交混合器，并且可操作地连接到至少一个正交混合器，使得两个并联增益级中的增益相等。

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