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1. 发明授权

US5560021A Power management and packet delivery method for use in a wireless local area network (LAN) 失效
标题翻译：用于无线局域网（LAN）的电源管理和分组传送方法
公开(公告)号：US5560021A
公开(公告)日：1996-09-24
申请号：US223497
申请日：1994-04-04
申请人： Frederick W. Vook , Mark Demange , Hungkun Chang
发明人： Frederick W. Vook , Mark Demange , Hungkun Chang
IPC分类号： H04B7/005 , H04L12/28 , G06F13/00
CPC分类号： H04W52/286 , H04W52/288 , H04W84/18
摘要： A power management and packet delivery method for use in a wireless local area network (LAN) having a plurality of mobile battery powered user devices, the user devices in communication with each other, the power management and packet delivery technique for determining when a user device may transition from an active mode of operation to a sleep mode of operation and further for determining when a user device in the sleep mode of operation should transition to the active mode of operation. The method further operative to inform an intended destination device that data is forthcoming, thereby prohibiting that device from entering the sleep mode until after the data has been delivered.
摘要翻译：一种在具有多个移动电池供电的用户设备的无线局域网（LAN）中使用的电源管理和分组传送方法，所述用户设备彼此通信，用于确定何时用户设备可以从活动操作模式转换到睡眠操作模式，并且还用于确定何时处于睡眠操作模式的用户设备应该转换到主动操作模式。该方法进一步操作以通知预期目的地设备即将到来的数据，从而禁止该设备进入休眠模式直到数据被传送为止。

2. 发明授权

US5625882A Power management technique for determining a device mode of operation 失效
标题翻译：用于确定设备操作模式的电源管理技术
公开(公告)号：US5625882A
公开(公告)日：1997-04-29
申请号：US514168
申请日：1995-08-11
申请人： Frederick W. Vook , Mark Demange , Hungkun Chang , William K. Doss
发明人： Frederick W. Vook , Mark Demange , Hungkun Chang , William K. Doss
IPC分类号： H04B1/16 , H04L12/10 , H04L12/28 , H04M1/73 , H04B7/00
CPC分类号： H04L12/10 , H04B1/1615 , H04W52/0229
摘要： A power management technique for use in an wireless communication system having a service access point and a plurality mobile battery powered user devices, user devices in communication with each other and with the access point, power management technique for determining when a user device may transition from an active mode of operation to a sleep mode of operation and further for determining when a user device in the sleep mode of operation should transition to the active mode of operation.
摘要翻译：一种在具有服务接入点和多个移动电池供电用户设备的无线通信系统中使用的电源管理技术，彼此通信并与接入点的用户设备，用于确定用户设备何时可以从对休眠操作模式的主动操作模式，并且还用于确定何时处于睡眠操作模式的用户设备应该转换到主动操作模式。

3. 发明申请

US20070272328A1 Universal funnel 审中-公开
标题翻译：通用漏斗
公开(公告)号：US20070272328A1
公开(公告)日：2007-11-29
申请号：US11440982
申请日：2006-05-25
申请人： Hungkun Chang
发明人： Hungkun Chang
IPC分类号： B65B39/00
CPC分类号： B67C11/02 , B01D17/02
摘要： A universal funnel comprises a tapered hollow body and a tube-like enclosure. The tapered hollow body has an exterior and an interior and has a wide end defining a wide inlet opening and a narrow end defining a narrow outlet opening. The tube-like enclosure has an exterior and an interior and has one end defining an attached end and the other end defining an opened end. The size of the attached end of the tube-like enclosure is larger than the size of the narrow outlet opening of the tapered hollow body. And the size of the attached end of the tube-like enclosure is equal to or smaller than the size of the wide inlet opening of the tapered hollow body. The attached end of the tube-like enclosure is attached to the exterior surface of the tapered hollow body by first introducing the narrow outlet opening of the tapered hollow body into the attached end of the tube-like enclosure till the attached end of the tube-like enclosure is in contact with the exterior surface of the tapered hollow body. The tube-like enclosure is long enough in order to keep the narrow outlet opening of the tapered hollow body inside and away from the opened end of the tube-like enclosure. Therefore, the universal funnel can be used for transferring liquids into bottles or separating a mixture of liquids of different specific gravities, e.g. oil and water; oil is a light weight liquid and water is a heavy weight liquid.
摘要翻译：通用漏斗包括锥形空心体和管状外壳。锥形空心体具有外部和内部，并且具有限定宽的入口开口的宽端部和限定窄出口开口的窄端。管状外壳具有外部和内部，并且具有限定附接端的一端和限定开口端的另一端。管状外壳的附接端的尺寸大于锥形中空体的窄出口的尺寸。并且管状外壳的附接端的尺寸等于或小于锥形中空体的宽入口的尺寸。管状外壳的安装端通过首先将锥形空心体的狭窄出口开口引入管状外壳的安装端而连接到锥形空心体的外表面，类似外壳与锥形中空体的外表面接触。管状外壳足够长以便将锥形空心体的狭窄出口保持在内部并远离管状外壳的开口端。因此，通用漏斗可用于将液体转移到瓶中或分离不同比重的液体的混合物，例如油和水; 油是轻质液体，水是重质液体。

4. 发明申请

US20070252463A1 Dynamo system 失效
标题翻译：发电机系统
公开(公告)号：US20070252463A1
公开(公告)日：2007-11-01
申请号：US11412378
申请日：2006-04-27
申请人： Hungkun Chang
发明人： Hungkun Chang
IPC分类号： H02K7/02 , H02K21/22
CPC分类号： H02K7/083 , H02K7/025 , Y02E60/16
摘要： A dynamo system comprises a flywheel mounted on a shaft intermediate its ends. A circular track means includes an inward groove structure to keep the ends of the shaft tracked inside while the flywheel rotating and spinning. The circular track means further includes a mechanism to allow a coupling means dangling around. The pair of coupling means for bearing the shaft ends and dangling the shaft ends inside the circular track means so that the shaft ends will move freely along the circular course of the circular track means while the flywheel rotating and spinning. The coupling means includes a bearing to carry a shaft's end. The coupling means further includes a mechanism to dangle the bearing around the course of the circular track means. A frame holds the circular track means. The cavity of the frame has sufficient space so that the flywheel can rotate and spin freely. A plurality of permanent or electro magnets are mounted in spaced relationship on the rim of the flywheel. And a plurality of armatures are mounted to the undersurfaces of the frame for producing induced electrical power when the magnets sweeping over. Therefore, the induced electrical power can be used by an external load. The dynamo system may be used as a motor to produce mechanical motion for an external drive.
摘要翻译：发电机系统包括安装在其两端的轴上的飞轮。圆形轨道装置包括向内的凹槽结构，以在飞轮旋转和旋转的同时将轴的端部保持在内部。圆形轨道装置还包括允许联接装置悬挂的机构。一对联接装置，用于支承轴端，并将轴端悬挂在圆形轨道装置的内部，使得当飞轮旋转和旋转时，轴端将沿圆形轨道装置的圆形过程自由移动。联接装置包括用于承载轴端的轴承。联接装置还包括一个使环绕着圆形轨道装置的过程使轴承摇摆的机构。框架保持圆形轨道装置。框架的空腔具有足够的空间，使得飞轮可以自由旋转和旋转。多个永久或电磁体以间隔的关系安装在飞轮的边缘上。并且当磁体扫过时，多个电枢被安装到框架的下表面以产生感应电力。因此，感应电力可以由外部负载使用。发电机系统可以用作电动机以产生外部驱动器的机械运动。

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