Patents by Inventor Wen-Kai Tsai
Wen-Kai Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9093749Abstract: An antenna comprises: a closed and insulating receiving housing; a radiating portion received in the receiving housing and including a liquid metal; a grounding portion received in the receiving housing and including a liquid metal; a pair of wires respectively connected to the radiating portion and the grounding portion and extending out of the receiving housing; and two air chambers respectively located on the ends of the radiating portion and the grounding portion.Type: GrantFiled: July 20, 2012Date of Patent: July 28, 2015Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Wen-Kai Tsai, Hsin-Kuo Dai, Yu-Min Wang
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Patent number: 9082019Abstract: A method of establishing an adjustable-block background model for detecting a real-time image object is provided to obtain a surveillance image by a surveillance apparatus. The surveillance image has a plurality of pixels. The method includes steps of: segmenting the surveillance image into a plurality of blocks each having a first pixel and at least one second pixel; defining the first pixel as a major color and comparing the first pixel with the at least one second pixel to determine a number and color information of the major color in the block; merging the blocks having the same major color into a large block to obtain a block background model; and performing image comparison to identify a moving object image. With the establishment of the block background model, a required memory space is effectively reduced while outstanding image display performance is still maintained.Type: GrantFiled: June 14, 2013Date of Patent: July 14, 2015Assignee: NATIONAL YUNLIN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Ming-Hwa Sheu, Wen-Kai Tsai, Jian-Hui Chen
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Publication number: 20140369552Abstract: A method of establishing an adjustable-block background model for detecting a real-time image object is provided to obtain a surveillance image by a surveillance apparatus. The surveillance image has a plurality of pixels. The method includes steps of: segmenting the surveillance image into a plurality of blocks each having a first pixel and at least one second pixel; defining the first pixel as a major color and comparing the first pixel with the at least one second pixel to determine a number and color information of the major color in the block; merging the blocks having the same major color into a large block to obtain a block background model; and performing image comparison to identify a moving object image. With the establishment of the block background model, a required memory space is effectively reduced while outstanding image display performance is still maintained.Type: ApplicationFiled: June 14, 2013Publication date: December 18, 2014Inventors: Ming-Hwa SHEU, Wen-Kai TSAI, Jian-Hui CHEN
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Publication number: 20140311176Abstract: A volumetric phase transfer heat dissipating system includes a base, a cap and an atomizing member. The base includes a plurality of conducting members. The cap is engaged with the base to form a chamber. The conducting members are disposed in the chamber and extended toward the cap. The cap includes an inlet connecting portion for being connected to a fluid transmission tube and includes an outlet connecting portion for being connected to a vapor transmission tube. The atomizing member is sleeved to the inlet connecting portion and disposed between the fluid transmission tube and the chamber. A working fluid in the fluid transmission tube flows into the chamber via the atomizing member and forms liquid on inner walls of the chamber and outer walls of the conducting members, and the liquid is vaporized after absorbing heat and flows out via the vapor transmission tube.Type: ApplicationFiled: September 11, 2013Publication date: October 23, 2014Applicant: MICROTHERMAL TECHNOLOGY CORP.Inventors: Hsien-Chun Meng, Chih-Chiang Ku, Che-Wei Liao, Wen-Kai Tsai
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Publication number: 20130021217Abstract: An antenna comprises: a closed and insulating receiving housing; a radiating portion received in the receiving housing and including a liquid metal; a grounding portion received in the receiving housing and including a liquid metal; a pair of wires respectively connected to the radiating portion and the grounding portion and extending out of the receiving housing; and two air chambers respectively located on the ends of the radiating portion and the grounding portion.Type: ApplicationFiled: July 20, 2012Publication date: January 24, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: WEN-KAI TSAI, HSIN-KUO DAI, YU-MIN WANG
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Patent number: 8301577Abstract: An intelligent monitoring system aims to perform object surveillance and tracking, and can quickly build accurate and reliable background data in a complex image condition to achieve desired monitoring result. Based on a dynamic background and a temporary static object and user's requirements, monitoring objects in a background module can be added or deleted to match the actual background information. The whole background data can be tracked according to characteristics of a targeted object set by users, and post-processing can be done for the tracked object, such as zooming, identifying, capturing, surveillance of behaviors, and the like. Thus whether a special attention is needed for a dynamic or static object can be notified. And an alert can be issued to relevant people for timely handling.Type: GrantFiled: November 21, 2008Date of Patent: October 30, 2012Assignee: National Yunlin University of Science and TechnologyInventors: Ming-Hwa Sheu, Wen-Kai Tsai, Yuan-Chang Chu, Chia-Huan Chen, Ssu-Ying Chen
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Patent number: 8201338Abstract: A positioning device, used in antenna's testing system, includes a crane, a fastening device, a testing antenna and a laser generator. The crane includes a gearing with a sliding shoe thereon. The fastening device is fixed on the sliding shoe of the crane. The testing antenna is fixed in font of the fastening device. The laser generator is fastened on the fastening device and located on a level different from the testing antenna. The laser generator sends out laser for defining the position of the testing antenna.Type: GrantFiled: July 14, 2009Date of Patent: June 19, 2012Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Wen-Kai Tsai, Hsin-Kuo Dai, Kun-Te Cheng, Kai Yang, Hsiang-Hui Shen, Yu-Min Wang
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Publication number: 20120147050Abstract: A method for zooming image shown in a touch screen includes reading information of a continuous writing locus formed on the touch screen; selecting a first group of points and a second group of points in the writing locus formed in time sequence; dealing with the first group and second group of points and obtaining a first radius and a second radius; comparing the first radius and the second radius to define a zooming command; executing the zooming command. A touch screen reading such writing locus into zooming command is also provided.Type: ApplicationFiled: December 9, 2011Publication date: June 14, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HSIN-KUO DAI, KUN-TE CHENG, WEN-KAI TSAI, HSIANG-HUI SHEN, KAI YANG, YU-MIN WANG
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Publication number: 20110169631Abstract: A real-time alarm system comprises an image capturing element, a network transmission system, a control processing unit and a mobile device. The image capturing element is installed on different sites to generate image information. The image information is transmitted through the network transmission system with one end linking to the image capturing element. The control processing unit is linked to the network transmission system and includes a server, and contains preset information to compare with the image information to generate comparison information. The comparison information is analyzed by a preset algorithm to judge behaviors of objects in the images. The mobile device is linked to the control processing unit to receive the image information. After the control processing unit judges specific behaviors, it actively informs the mobile device to record a video for a selected duration to be seen anytime at a remote site.Type: ApplicationFiled: January 11, 2010Publication date: July 14, 2011Inventors: Ming-Hwa SHEU, Ching-Long Chang, Wen-Kai Tsai, Hsin-Chang Yeh, Huan-Yao Kang, Yu-Shian Lin
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Publication number: 20100131442Abstract: An intelligent monitoring system aims to perform object surveillance and tracking, and can quickly build accurate and reliable background data in a complex image condition to achieve desired monitoring result. Based on a dynamic background and a temporary static object and user's requirements, monitoring objects in a background module can be added or deleted to match the actual background information. The whole background data can be tracked according to characteristics of a targeted object set by users, and post-processing can be done for the tracked object, such as zooming, identifying, capturing, surveillance of behaviors, and the like. Thus whether a special attention is needed for a dynamic or static object can be notified. And an alert can be issued to relevant people for timely handling.Type: ApplicationFiled: November 21, 2008Publication date: May 27, 2010Inventors: Ming-Hwa SHEU, Wen-Kai Tsai, Yuan-Chang Chu, Chia-Huan Chen, Ssu-Ying Chen
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Publication number: 20100005670Abstract: A positioning device, used in antenna's testing system, includes a crane, a fastening device, a testing antenna and a laser generator. The crane includes a gearing with a sliding shoe thereon. The fastening device is fixed on the sliding shoe of the crane. The testing antenna is fixed in font of the fastening device. The laser generator is fastened on the fastening device and located on a level different from the testing antenna. The laser generator sends out laser for defining the position of the testing antenna.Type: ApplicationFiled: July 14, 2009Publication date: January 14, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: WEN-KAI TSAI, HSIN-KUO DAI, KUN-TE CHENG, KAI YANG, HSIANG-HUI SHEN, YU-MIN WANG