公开(公告)号：US07358489B2

公开(公告)日：2008-04-15

申请号：US11197790

申请日：2005-08-04

申请人： Jacob Y. Wong ,  Chi Wai Tse

发明人： Jacob Y. Wong ,  Chi Wai Tse

IPC分类号： H01J49/00 ,  G01J5/02

CPC分类号： G01N21/3504 ,  G01N21/3151

摘要： The concentration of a gas species is detected by using a single beam NDIR gas sensor in which an infrared source element is driven at two different temperatures, a feed back loop senses an operation voltage of the source, a differential gain amplifier creates a high cycle amplified output during a high cycle and a low cycle amplified output during a low cycle while a controller synchronizes the source driver so that a signal processor can determine the gas concentration through use of the high cycle amplified output and the low cycle amplified output. The infrared source can be a non-genuine blackbody source such as an incandescent miniature light bulb when the sample chamber is a thermally insulated aluminum tube that is maintained at a preselected temperature greater than ambient so that the glass envelope of the bulb is maintained at an equilibrium temperature (such as approximately 30 degrees Celsius plus or minus two degrees Celsius) during its low cycle operation state.

摘要翻译： 通过使用其中红外源元件在两个不同温度下驱动的单束NDIR气体传感器来检测气体种类的浓度，反馈回路感测源的操作电压，差分增益放大器产生高周期放大 在低周期期间在高周期和低周期放大输出期间输出，同时控制器使源极驱动器同步，使得信号处理器可以通过使用高周期放大输出和低周期放大输出来确定气体浓度。 当样品室是保持在比环境温度大的预选温度的绝热铝管时，红外源可以是非真正的黑体源，例如白炽灯微型灯泡，使得灯泡的玻璃封套保持在 在其低循环运行状态期间的平衡温度（例如约30摄氏度加或减2摄氏度）。

公开(公告)号：US07039223B2

公开(公告)日：2006-05-02

申请号：US10074011

申请日：2002-02-14

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G06K9/00

CPC分类号： G06K9/00013 ,  G06K9/00067

摘要： A method and system for personal authentication using sequences of partial fingerprint signatures provides a high security capability to various processes requiring positive identification of individuals. In a baseline usage, the sequential partial fingerprint sequence techniques augments sentinel systems for gaining access to restricted areas, and when used in combination with financial cards, offer a unique and greatly simplified means for authenticating or identifying individuals. A highly automated technique initially obtains eight (illustratively) linear partial fingerprint signatures which serve as reference data against which later proffered candidate data in the form of at least two linear partial fingerprint signatures are compared for authentication. The particular two candidate signatures used and the sequence in which they are submitted are selected with the user's consent and serve as a PIN-like unique personal code. The use of only partial fingerprint data greatly allays the concerns of widespread fingerprint dissemination by many individuals.

公开(公告)号：US06237575B1

公开(公告)日：2001-05-29

申请号：US09288243

申请日：1999-04-08

申请人： Jordan K. Lampert ,  Andrian I. Kouznetsov ,  Jacob Y. Wong ,  Ronald M. Heck ,  John J. Steger ,  Arthur Bruce Robertson ,  Jeff H. Moser

发明人： Jordan K. Lampert ,  Andrian I. Kouznetsov ,  Jacob Y. Wong ,  Ronald M. Heck ,  John J. Steger ,  Arthur Bruce Robertson ,  Jeff H. Moser

IPC分类号： F02M2508

CPC分类号： F02D41/0042 ,  F02D41/0045 ,  F02M25/08

摘要： A pre-vaporized fuel system for use in fueling an internal combustion engine is provided with a dynamic infrared sensor. The infrared sensor senses the hydrocarbon content of the vaporized fuel which information is used by the engine control module to control engine fueling to minimize emissions. The infrared source is operated to maintain the pre-vaporized fuel below its lower explosive limit and the thermopile detector electronics is synchronized with the light pulse frequency to develop fast signal responses suitable for fueling control.

摘要翻译： 用于燃料内燃机的预蒸发燃料系统设置有动态红外传感器。 红外传感器感测汽化燃料的烃含量，该信息由发动机控制模块用于控制发动机加油以最小化排放。 操作红外源以将预蒸发的燃料保持在其较低的爆炸极限以下，并且热电堆检测器电子设备与光脉冲频率同步，以开发适合于加油控制的快速信号响应。

公开(公告)号：US6107925A

公开(公告)日：2000-08-22

申请号：US902537

申请日：1997-07-29

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G08B17/10 ,  G08B29/18 ,  G08B29/20

CPC分类号： G08B29/183 ,  G08B17/10 ,  G08B29/20 ,  G08B17/113

摘要： A fire detector is equipped with a smoke detector and electrical circuitry for declaring a fire alarm if a smoke concentration based fire detection criteria is satisfied. A CO.sub.2 detector is included in the fire detector for forming an a priori estimate of the probability of the existence of a fire. If the a priori probability rises above a predetermined level, the smoke concentration base fire detection criteria of the smoke detector are altered to allow the more rapid detection of a fire.

摘要翻译： 火灾探测器配有烟雾探测器和电路，用于在满足基于烟雾浓度的火灾探测标准的情况下宣布火灾报警。 火灾探测器中包括二氧化碳检测器，用于形成火灾存在概率的先验估计。 如果先验概率上升到预定水平以上，则烟雾探测器的烟浓度基火探测准则被改变以允许更迅速地检测到火灾。

公开(公告)号：US6095534A

公开(公告)日：2000-08-01

申请号：US241976

申请日：1999-02-01

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： B62B1/12

CPC分类号： B62B1/125 ,  B62B2202/24 ,  B62B2202/404 ,  B62B2205/02

摘要： A collapsible luggage cart characterized by left and right telescoping members having top sections and bottom sections, the top sections being pivotally connected so that when the cart is extended for use the telescoping members provide an A-frame back for the cart, each bottom section having an axle on which a wheel is mounted, and each bottom section having a forwardly-extending arm pivotally connected to it, so that when the cart is to be collapsed, the arms are swung upwardly into the bottom sections, the telescoping members are then pivoted together until they are side by side, and finally the telescoping members are collapsed into the bottom sections, the exterior surfaces of which together then substantially enclose the collapsed cart.

摘要翻译： 一种可折叠的行李车，其特征在于具有顶部和底部的左右伸缩构件，顶部部分枢转地连接，使得当推车延伸使用时，伸缩构件为推车提供A框架背部，每个底部部分 其上安装有车轮的轴，并且每个底部具有与其枢转连接的向前延伸的臂，使得当推车被折叠时，臂向上摆动到底部中，然后使伸缩构件枢转 一起直到它们并排，并且最后，伸缩构件被折叠到底部部分中，其外表面一起基本上包围折叠的推车。

公开(公告)号：US5980043A

公开(公告)日：1999-11-09

申请号：US22158

申请日：1998-02-11

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G02B27/08 ,  G02B23/00

CPC分类号： G02B27/08

摘要： One type of kaleidoscope has an object cell that contains a multitude of small objects immersed in a viscous liquid. By inverting the object cell, a user can enjoy a continuous ever-changing display of pleasing and colorful symmetrical images as the objects cascade through the viscous liquid under the influence of gravity. Eventually the objects settle to the top or bottom of the object cell as determined by their densities, and the viewer needs to invert the object cell again. It is desirable to prolong each cascade so as to reduce the frequency with which the object cell must be inverted. Several ways of accomplishing this are disclosed. The walls of the cell may converge and may be provided with bumps or other surface irregularities. The movement of the objects may be impeded by the provision of fixed obstacles within the object cell. In another approach, an upwelling and circulation of the viscous liquid is produced by a simple pump that is mobilized by inverting the object cell.

摘要翻译： 一种类型的万花筒具有包含浸入粘性液体中的大量小物体的物体池。 通过反转对象单元，用户可以在重力的影响下通过粘性液体层叠，享受令人愉快和色彩鲜艳的对称图像的连续不断变化的显示。 最终，对象由它们的密度确定到对象单元的顶部或底部，并且观看者需要再次反转对象单元。 期望延长每个级联以便降低对象单元必须被反转的频率。 公开了几种实现这一目标的方法。 电池的壁会聚并且可能具有凸起或其它表面不规则。 通过在对象单元内提供固定的障碍物可能妨碍物体的移动。 在另一种方法中，粘性液体的上升流和循环通过简单的泵产生，该泵通过反转物体池来动员。

公开(公告)号：US5966077A

公开(公告)日：1999-10-12

申请号：US60115

申请日：1998-04-14

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G08B17/103 ,  G08B17/10 ,  G08B17/117 ,  G08B29/18 ,  G08B29/20 ,  G08B29/26

CPC分类号： G08B29/183 ,  G08B17/10 ,  G08B17/113 ,  G08B17/117 ,  G08B29/26

摘要： A fire detector with a maximum average response time of less than 1.5 minutes is obtained by combining a smoke detector with a CO.sub.2 detector that uses NDIR sensor technology. The smoke detector is used to detect smoldering fires and to help prevent false alarms attributable to the CO.sub.2 detector. The CO.sub.2 detector is used to rapidly detect fires by measuring the rate of change of CO.sub.2 concentration. A signal processor generates an alarm signal when a smoldering fire is detected or alarm logic indicates that a fire has been detected.

摘要翻译： 通过将烟雾探测器与使用NDIR传感器技术的CO2探测器相结合，可以获得最大平均响应时间小于1.5分钟的火灾探测器。 烟雾探测器用于检测阴燃火，并帮助防止归因于二氧化碳探测器的假警报。 CO2探测器用于通过测量二氧化碳浓度变化率快速检测火灾。 当检测到阴燃或报警逻辑指示已经检测到火灾时，信号处理器产生报警信号。

公开(公告)号：US5834777A

公开(公告)日：1998-11-10

申请号：US844987

申请日：1997-04-23

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G01N21/03 ,  G01N21/35 ,  G01N21/61

CPC分类号： G01N21/3504 ,  G01N21/0303 ,  G01N21/61

摘要： A miniaturized NDIR gas sensor is manufactured using semiconductor micromachining techniques from a semiconductor material such as Si or GaAs. The NDIR gas sensor comprises an optical waveguide, a light source at one end of the waveguide, at least one light detector at the end of the waveguide opposite the light source, a diffusion type gas sample chamber formed within the waveguide and interposed in the optical path between the light source and light detector so that the light source and light detector are thermally isolated from the gas sample, and a separate bandpass filter interposed between the light source and each light detector. A miniaturized NDIR gas sensor is also provided in which the light source and light detector are located on the same end of the optical waveguide is also provided. Because the NDIR sensor is fabricated out of a semiconductor material, the source driver and signal processing electronics may be added directly to the sensor using integrated circuit fabrication techniques. Particles and smoke and dust may be kept out of the sample chamber by application of a gas permeable membrane over apertures in the sample chamber walls.

公开(公告)号：US5798700A

公开(公告)日：1998-08-25

申请号：US744040

申请日：1996-11-05

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G08B17/10 ,  G08B29/18 ,  G08B29/20 ,  G08B19/00

CPC分类号： G08B29/183 ,  G08B17/10 ,  G08B29/188 ,  G08B29/20

摘要： A fire detector having a greatly reduced frequency of generating false alarms. An AND gate is responsive to outputs from first and second fire detector modules that are responsive to the detection of first and second characteristics of a fire, respectively, to signal the detection of a fire if both of these characteristics have been detected. At least one override path is included to enable the occurrence of a particular type of fire to be signaled that would not otherwise be signaled by the output of said AND gate.

摘要翻译： 火灾探测器产生误报的频率大大降低。 与门分别对来自第一和第二火灾探测器模块的输出进行响应，分别响应于火灾的第一和第二特性的检测，以便在检测到这两个特征时发出火警的检测。 包括至少一个超控路径以使得能够发出特定类型的火信号，否则将不会由所述与门的输出发出信号。

公开(公告)号：US5650624A

公开(公告)日：1997-07-22

申请号：US422507

申请日：1995-04-13

申请人： Jacob Y. Wong

发明人： Jacob Y. Wong

IPC分类号： G01N21/35 ,  G01N21/61

CPC分类号： G01N21/3518 ,  G01N21/3504

摘要： A passive source infrared gas detector which uses an ambient temperature source and the space between the detector assembly and the source as the sample chamber is provided, the gas detector includes an infrared detector assembly for producing a first output, a second output, and a third output, the first output being indicative of the radiation received by the detector assembly at a first non-neutral spectral band which is absorbable by a preselected gas to be detected, the second output being indicative of the radiation received by the detector assembly at a first neutral spectral band from the passive infrared source, and the third output being indicative of the radiation received by the detector assembly at a second neutral spectral band from the passive infrared source. Signal processing means are included for manipulating the three outputs to determine the concentration of the gas being monitored. By adding additional detectors to the detector assembly which can detect radiation at spectral bands characteristic of additional gases, the infrared gas detector can be used to monitor the concentration of a plurality of gases.

摘要翻译： 提供使用环境温度源和检测器组件与源之间的空间作为样品室的被动源红外气体检测器，气体检测器包括用于产生第一输出，第二输出和第三输出的红外检测器组件 所述第一输出指示由所述检测器组件在被待检测的预选气体吸收的第一非中性光谱带处接收的辐射，所述第二输出指示所述检测器组件在第一 来自被动红外源的中性光谱带，并且第三输出指示由来自被动红外源的第二中性光谱带处的由检测器组件接收的辐射。 包括信号处理装置用于操纵三个输出以确定被监测气体的浓度。 通过向检测器组件添加额外的检测器，其可以检测额外气体特征的光谱带的辐射，红外气体检测器可用于监测多种气体的浓度。