Patents by Inventor Yi-Ching Liaw
Yi-Ching Liaw 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).
-
Patent number: 8116202Abstract: Methods for allocating transmission bandwidths of a network are adapted to a network including an office terminal and peripheral terminals. The peripheral terminals communicate with the office terminal by time division multiplexing during a sequence of transmitting cycles. The method includes receiving requested bandwidths from uploading messages delivered from the peripheral terminals, arranging an uploading order of the peripheral terminals based on the uploading messages to obtain a transmitting sequence, adjusting the uploading order of each of the peripheral terminals in the transmitting sequence based on a size of the requested bandwidth to obtain a modified transmitting sequence, and arranging a modified uploading order of the peripheral terminals based on the modified transmitting sequence. Therefore, the transmission bandwidth allocation is fairer, and delay is reduced. Upstream order of each terminal is transferred based on its requested bandwidth, thereby effectively reducing the average delay.Type: GrantFiled: July 7, 2009Date of Patent: February 14, 2012Assignee: Industrial Technology Research InstituteInventors: Yi-Ching Liaw, Yun-Lung Chou, Zone-Chang Lai, Yeong-Chang Maa, Chia-Chieh Tuanmu, Chu-Hsun Chang
-
Patent number: 7957592Abstract: A method and system of video object segmentation are disclosed herein. A pixel data of an image is received, wherein the pixel data has a corresponding location. A difference value between a pixel value of the pixel data and a pixel value in the corresponding location of a previous image is obtained. Utilizing the difference value and the pixel data, a multi-layered background registration is performed to get a background. Using the background, a background region of the image is removed. Furthermore, a process of removing an average value of luminance from the image and from the background is carried out to prevent object segmentation failure caused by the non-uniform luminance problem, which is produced by variation and flickering of illumination.Type: GrantFiled: June 22, 2007Date of Patent: June 7, 2011Assignee: Industrial Technology Research InstituteInventors: Tsung-Jen Huang, Cheng-Min Lee, Yi-Ching Liaw, Jim Zong-Chang Lai
-
Patent number: 7930311Abstract: A data classification system is provided. The data classification system includes a fetch unit, a classification tree module, and a data repository. The fetch unit is adapted for receiving data including at least one datum, and fetching a data information contained in the data. The classification tree module is adapted for classifying the data in a manner of a tree structure according to the data info illation, and building a classification tree thereby. The data repository is adapted for storing the classification tree and the data.Type: GrantFiled: March 12, 2008Date of Patent: April 19, 2011Assignee: Industrial Technology Research InstituteInventors: Shih-An Feng, Tsung-Jen Huang, Yi-Ching Liaw, Chih-Tang Chang
-
Publication number: 20090269072Abstract: Methods for allocating transmission bandwidths of a network are adapted to a network including an office terminal and peripheral terminals. The peripheral terminals communicate with the office terminal by time division multiplexing during a sequence of transmitting cycles. The method includes receiving requested bandwidths from uploading messages delivered from the peripheral terminals, arranging an uploading order of the peripheral terminals based on the uploading messages to obtain a transmitting sequence, adjusting the uploading order of each of the peripheral terminals in the transmitting sequence based on a size of the requested bandwidth to obtain a modified transmitting sequence, and arranging a modified uploading order of the peripheral terminals based on the modified transmitting sequence. Therefore, the transmission bandwidth allocation is fairer, and delay is reduced. Upstream order of each terminal is transferred based on its requested bandwidth, thereby effectively reducing the average delay.Type: ApplicationFiled: July 7, 2009Publication date: October 29, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Ching Liaw, Yun-Lung Chou, Zone-Chang Lai, Yeong-Chang Maa, Chia-Chieh Tuanmu, Chu-Hsun Chang
-
Patent number: 7577162Abstract: Methods for allocating transmission bandwidths of a network are provided. The allocation ratio of anticipation bandwidths is adjusted according to the loading of the network to calculate the requested bandwidths, thereby effectively reducing an average delay and enhancing the utility rate of the network. Further, remaining bandwidth of the network is allocated based on maximum used bandwidth and bandwidth compensation of each terminal during the transmission cycle, to allocate excess bandwidth for each terminal. Therefore, the transmission bandwidth allocation is fairer, and delay is reduced. Upstream order of each terminal is transferred based on its requested bandwidth, thereby effectively reducing the average delay.Type: GrantFiled: March 1, 2006Date of Patent: August 18, 2009Assignee: Industrial Technology Research InstituteInventors: Yi-Ching Liaw, Yun-Lung Chou, Zone-Chang Lai, Yeong-Chang Maa, Chia-Chieh Tuanmu, Chu-Hsun Chang
-
Publication number: 20090172010Abstract: A data classification system is provided. The data classification system includes a fetch unit, a classification tree module, and a data repository. The fetch unit is adapted for receiving data including at least one datum, and fetching a data information contained in the data. The classification tree module is adapted for classifying the data in a manner of a tree structure according to the data information, and building a classification tree thereby. The data repository is adapted for storing the classification tree and the data. Therefore, the present invention provides a hierarchical structure which is adapted to accelerate a speed for searching data.Type: ApplicationFiled: March 12, 2008Publication date: July 2, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shih-An Feng, Tsung-Jen Huang, Yi-Ching Liaw, Chih-Tang Chang
-
Publication number: 20080130744Abstract: A method and system of video object segmentation are disclosed herein. A pixel data of an image is received, wherein the pixel data has a corresponding location. A difference value between a pixel value of the pixel data and a pixel value in the corresponding location of a previous image is obtained. Utilizing the difference value and the pixel data, a multi-layered background registration is performed to get a background. Using the background, a background region of the image is removed. Furthermore, a process of removing an average value of luminance from the image and from the background is carried out to prevent object segmentation failure caused by the non-uniform luminance problem, which is produced by variation and flickering of illumination.Type: ApplicationFiled: June 22, 2007Publication date: June 5, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tsung-Jen Huang, Cheng-Min Lee, Yi-Ching Liaw, Jim Zong-Chang Lai
-
Patent number: 7310479Abstract: A multi-wavelength optical packet switch system with shared output buffer is disclosed, which includes N input fibers, N output fibers, an input device, a wavelength converter, a wavelength router, an output buffer, a wavelength classifier and a control device. The present invention utilizes both the tunable wavelength converter and the wavelength router to accomplish multi-wavelength optical packet switching. The present invention also provides the output buffer connected to the output of the wavelength router for being shared by optical packets in all wavelengths (channels), thereby avoiding the packet loss due to output conflicts and reducing the cost of establishing the buffer.Type: GrantFiled: January 5, 2004Date of Patent: December 18, 2007Assignee: Industrial Technology Research InstituteInventors: Shi-Wei Lee, Yi-Ching Liaw, Chum-Shiow Chen
-
Publication number: 20070064732Abstract: Methods for allocating transmission bandwidths of a network are provided. The allocation ratio of anticipation bandwidths is adjusted according to the loading of the network to calculate the requested bandwidths, thereby effectively reducing an average delay and enhancing the utility rate of the network. Further, remaining bandwidth of the network is allocated based on maximum used bandwidth and bandwidth compensation of each terminal during the transmission cycle, to allocate excess bandwidth for each terminal. Therefore, the transmission bandwidth allocation is fairer, and delay is reduced. Upstream order of each terminal is transferred based on its requested bandwidth, thereby effectively reducing the average delay.Type: ApplicationFiled: March 1, 2006Publication date: March 22, 2007Inventors: Yi-Ching Liaw, Yun-Lung Chou, Zone-Chang Lai, Yeong-Chang Maa, Chia-Chieh Tuanmu, Chu-Hsun Chang
-
Publication number: 20050249500Abstract: A passive optical network with a protection mechanism and its method of relocation are provided. A plurality of optical network units is defined in several optical network unit groups. Each optical network unit connects to two couplers. The two couplers connect respectively to two different optical line terminals, which are controlled by a controller. Thus, when the optical lines run out or are overloaded, the controller relocates the optical network units dynamically.Type: ApplicationFiled: December 20, 2004Publication date: November 10, 2005Inventors: Yi-Ching Liaw, Jim Lai, Yun-Lung Chou, Jia-Jay Duanmu, Yao-Yaun Chang
-
Publication number: 20050063703Abstract: A multi-wavelength optical packet switch system with shared output buffer is disclosed, which includes N input fibers, N output fibers, an input device, a wavelength converter, a wavelength router, an output buffer, a wavelength classifier and a control device. The present invention utilizes both the tunable wavelength converter and the wavelength router to accomplish multi-wavelength optical packet switching. The present invention also provides the output buffer connected to the output of the wavelength router for being shared by optical packets in all wavelengths (channels), thereby avoiding the packet loss due to output conflicts and reducing the cost of establishing the buffer.Type: ApplicationFiled: January 5, 2004Publication date: March 24, 2005Applicant: Industrial Technology Research InstituteInventors: Shi-Wei Lee, Yi-Ching Liaw, Chum-Shiow Chen