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1. 发明授权

US07136513B2 Security identification system 有权
公开(公告)号：US07136513B2
公开(公告)日：2006-11-14
申请号：US10281014
申请日：2002-10-25
申请人： Glenn Waehner , Erik Henry Tews , David L. A. Toste , Shane Compton , Joshua Cockrum , Sam Grigorian , Matthew Larson , John Pretzer , Joshua Houser , James Arbuckle , William S. Arbuckle , David McDonald
发明人： Glenn Waehner , Erik Henry Tews , David L. A. Toste , Shane Compton , Joshua Cockrum , Sam Grigorian , Matthew Larson , John Pretzer , Joshua Houser , James Arbuckle , William S. Arbuckle , David McDonald
IPC分类号： G06K9/00
CPC分类号： G06K9/2036 , G06K9/00221 , G07C9/00158
摘要： This is a security and identification system designed to obtain improved images for use by real-time facial recognition and identification systems for screening individuals passing through secure entry or checkpoints such as airport passenger terminals, government offices, and other secure locations. The system detects the presence of a subject at the checkpoint, interactively instructs the subject to stop and move into position for proper identification and recognition, analyzes the facial features of the subject as (s)he passes through the checkpoint, and compares the features of the subject with those in a database. The system then generates different signals depending upon whether or not the subject is recognized. In one aspect of the invention, different methods and apparatus are provided for compensating for low ambient light so as to improve the quality of the facial image of the subject that is obtained.

2. 发明授权

US06566839B2 Switched capacitor motor driver 有权
标题翻译：开关电容电机驱动器
公开(公告)号：US06566839B2
公开(公告)日：2003-05-20
申请号：US09895505
申请日：2001-06-28
申请人： Daniel Robert DaSilva , John Pretzer , Glenn Waehner
发明人： Daniel Robert DaSilva , John Pretzer , Glenn Waehner
IPC分类号： H02P318
CPC分类号： H02P8/32 , H02P8/14
摘要： The present invention is a method and apparatus that allows the torque of an electric motor to be increased allowing the motor to be operated at higher speeds and at higher torque without raising the supply voltage, thus allowing for a wider dynamic range of speed and torque to be realized. This is accomplished by connecting one or more capacitors in series with each motor winding, and selectively activating the capacitors at higher speeds where the frequency of the motor resonates with that of the capacitor(s). Switching a capacitor into the circuit with the motor in a particular frequency range allows higher currents to flow through the motor windings resulting in higher torque.
摘要翻译：本发明是一种允许电动机转矩增加的方法和装置，其允许电动机以更高的速度和更高的转矩工作，而不会提高电源电压，从而允许更大的速度和转矩的动态范围实现。这通过将一个或多个电容器与每个电动机绕组串联连接并且以较高速度选择性地激活电容器来实现，其中电动机的频率与电容器的频率谐振。将电容器切换到具有特定频率范围的电机的电路中，允许更高的电流流过电机绕组，从而产生更高的转矩。

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