Patents by Inventor Chia-Chang Li
Chia-Chang Li 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: 10944873Abstract: Methods and systems for routing voice over internet protocol (VOIP) are described. A service provider may provide a VOIP infrastructure for routing VOIP calls. One or more other service providers may join the VOIP infrastructure. A computing device may identify the service provider servicing the VOIP calls and may further process the calls accordingly.Type: GrantFiled: October 13, 2017Date of Patent: March 9, 2021Assignee: Comcast Cable Communications, FFCInventors: Chia-Chang Li, Eric Wong, Vengatarajulu Rajasekar, Satish Sampangiramiah
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Publication number: 20210058324Abstract: Systems and methods are described for effectively managing and maintaining a communication network by monitoring communications to detect a loop condition, and effectively route the communication to one or more destinations known to reduce or eliminate the occurrence of a looping condition.Type: ApplicationFiled: June 5, 2020Publication date: February 25, 2021Inventors: Chia-Chang Li, Mohamed Barache, Robert Lambardia
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Patent number: 10890979Abstract: A controlling system and a controlling method for virtual display are provided. The controlling system for virtual display includes a visual line tracking unit, a space forming unit, a hand information capturing unit, a transforming unit and a controlling unit. The visual line tracking unit is used for tracking a visual line of a user. The space forming unit is used for forming a virtual display space according to the visual line. The hand information capturing unit is used for obtaining a hand location of the user's one hand in a real operation space. The transforming unit is used for transforming the hand location to be a cursor location in the virtual display space. The controlling unit is used for controlling the virtual display according to the cursor location.Type: GrantFiled: April 23, 2018Date of Patent: January 12, 2021Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Duan-Li Liao, Chia-Chang Li, Wen-Hung Ting, Hian-Kun Tenn
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Publication number: 20200252503Abstract: Methods and systems are described for authenticating calls. An example method may comprise receiving a message indicative of a call request. Header data associated with the message may be analyzed to determine an attestation value. A signature may be generated based on the attestation value. A signed message comprising the signature and at least a portion of the message may be sent.Type: ApplicationFiled: February 4, 2020Publication date: August 6, 2020Inventor: Chia-Chang Li
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Patent number: 10715436Abstract: Systems and methods are described for effectively managing and maintaining a communication network by monitoring communications to detect a loop condition, and effectively route the communication to one or more destinations known to reduce or eliminate the occurrence of a looping condition. In one embodiment one or more computing devices may be configured to detect or assign an identifier to an incoming network communication, retrieve routing information from a routing database identifying one or more destinations to route the communication. The one or more computing devices may be further configured to compare the routing information with the identifier to determine an appropriate destination to route the communication.Type: GrantFiled: May 28, 2014Date of Patent: July 14, 2020Assignee: Comcast Cable Communications, LLCInventors: Chia-Chang Li, Mohamed Barache, Robert Lambardia
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Patent number: 10474893Abstract: An electronic device, an iris recognition method and a non-volatile computer-readable medium are provided. A processor in the electronic device obtains a first and second iris images, and calculates a plurality of first and second feature mark boxes that are non-uniformly arranged according to the first and second iris images. The processor uses the first feature mark boxes to obtain a first and second image features from the first and second iris images respectively, and compares the first and second image features to obtain a first recognition result. The processor uses the second feature mark boxes to obtain a third and fourth image features from the second and first iris images respectively, and compares the third and fourth image features to obtain a second recognition result. The processor determines a similarity degree of the first and second iris images according to the first and second recognition results.Type: GrantFiled: April 24, 2018Date of Patent: November 12, 2019Assignee: Industrial Technology Research InstituteInventors: Wen-Hung Ting, Hian-Kun Tenn, Duan-Li Liao, Chia-Chang Li, Po-Lung Chen
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Publication number: 20190324550Abstract: A controlling system and a controlling method for virtual display are provided. The controlling system for virtual display includes a visual line tracking unit, a space forming unit, a hand information capturing unit, a transforming unit and a controlling unit. The visual line tracking unit is used for tracking a visual line of a user. The space forming unit is used for forming a virtual display space according to the visual line. The hand information capturing unit is used for obtaining a hand location of the user's one hand in a real operation space. The transforming unit is used for transforming the hand location to be a cursor location in the virtual display space. The controlling unit is used for controlling the virtual display according to the cursor location.Type: ApplicationFiled: April 23, 2018Publication date: October 24, 2019Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Duan-Li LIAO, Chia-Chang LI, Wen-Hung TING, Hian-Kun TENN
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Publication number: 20190303645Abstract: An electronic device, an iris recognition method and a non-volatile computer-readable medium are provided. A processor in the electronic device obtains a first and second iris images, and calculates a plurality of first and second feature mark boxes that are non-uniformly arranged according to the first and second iris images. The processor uses the first feature mark boxes to obtain a first and second image features from the first and second iris images respectively, and compares the first and second image features to obtain a first recognition result. The processor uses the second feature mark boxes to obtain a third and fourth image features from the second and first iris images respectively, and compares the third and fourth image features to obtain a second recognition result. The processor determines a similarity degree of the first and second iris images according to the first and second recognition results.Type: ApplicationFiled: April 24, 2018Publication date: October 3, 2019Applicant: Industrial Technology Research InstituteInventors: Wen-Hung Ting, Hian-Kun Tenn, Duan-Li Liao, Chia-Chang Li, Po-Lung Chen
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Publication number: 20190116268Abstract: Methods and systems for routing voice over internet protocol (VOIP) are described. A service provider may provide a VOIP infrastructure for routing VOIP calls. One or more other service providers may join the VOIP infrastructure. A computing device may identify the service provider servicing the VOIP calls and may further process the calls accordingly.Type: ApplicationFiled: October 13, 2017Publication date: April 18, 2019Inventors: Chia-Chang Li, Eric Wong, Vengatarajulu Rajasekar, Satish Sampangiramiah
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Publication number: 20170353608Abstract: Systems and methods for managing network communication are disclosed. Methods and systems can comprise receiving a telephony message having a source address and determining routing information using the source address. A telephony call may be routed using the determined routing information. Such processing may be implemented to route telephony calls to certain services such as accessibility services based on at least the source address of a telephony message.Type: ApplicationFiled: June 3, 2016Publication date: December 7, 2017Inventors: Chia-Chang Li, Eric Wong, Satish Sampangiramiah, Robert Lambardia, Amarendar Sirikonda
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Patent number: 9456219Abstract: An image encoding system and an image encoding method are provided. The image encoding system comprises a relation computing unit and an embedded unit. The relation computing unit receives a plurality of view-angle images each comprising a plurality of pixels, and calculates a relative relationship between pixels according to their colors and locations of the pixels to generate a plurality of encoding images. The embedded unit respectively embeds the encoding images in the view-angle images to generate a plurality of embedded images.Type: GrantFiled: September 23, 2011Date of Patent: September 27, 2016Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Duan-Li Liao, Chia-Chang Li, Po-Lung Chen
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Patent number: 9288318Abstract: A system and method for improving the handling, management, and retention of particular accounts. An allowable calling number list is generated via a suitable mechanism such as a call center. The allowable calling number list is utilized by telephone number management server to manage inbound call access to suspended accounts. Account representatives are given access to the suspended numbers. Additionally, certain emergency inbound calls may be permitted from select numbers.Type: GrantFiled: May 3, 2013Date of Patent: March 15, 2016Assignee: Comcast Cable Communications, LLCInventors: Chia-Chang Li, Jon Boone, Jaime Jimenez, Chris Kennedy
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Publication number: 20150350075Abstract: Systems and methods are described for effectively managing and maintaining a communication network by monitoring communications to detect a loop condition, and effectively route the communication to one or more destinations known to reduce or eliminate the occurrence of a looping condition. In one embodiment one or more computing devices may be configured to detect or assign an identifier to an incoming network communication, retrieve routing information from a routing database identifying one or more destinations to route the communication. The one or more computing devices may be further configured to compare the routing information with the identifier to determine an appropriate destination to route the communication.Type: ApplicationFiled: May 28, 2014Publication date: December 3, 2015Inventors: Chia-Chang Li, Mohamed Barache, Robert Lambardia
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Patent number: 9117138Abstract: According to an exemplary embodiment, a method for object positioning by using depth images is executed by a hardware processor as following: converting depth information of each of a plurality of pixels in each of one or more depth images into a real world coordinate; based on the real world coordinate, computing a distance of each pixel to an edge in each of a plurality of directions; assigning a weight to the distance of each pixel to each edge; and based on the weight of the distance of each pixel to each edge and a weight limit, selecting one or more extremity positions of an object.Type: GrantFiled: December 24, 2012Date of Patent: August 25, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chia-Chang Li, Duan-Li Liao
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Patent number: 9063567Abstract: A display control apparatus and a display control method are disclosed. The display control apparatus comprises a recognition circuit and a mapping circuit. The recognition circuit recognizes a head position and a control point position of an operator. The mapping circuit dynamically adjusts the operating boundary according to the head position, the control point position and a display boundary, and calculates the cursor position on a display according to the control point position, the operating boundary and the display boundary, wherein the cursor position remains on a imagine line passing through the head position and the control point position.Type: GrantFiled: December 27, 2011Date of Patent: June 23, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wen-Hung Ting, Chia-Chang Li, Chieh-Fu Tsai, Chien-Chun Kuo, Po-Lung Chen
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Patent number: 8659547Abstract: A method for constructing a gesture mouse utilizes an object e.g., a user's palm) in the background of the photographed region of a video camera as a determination basis. In a computer system, (1) for the image of an object, the point with maximum Y-axis value is set to be a cursor; (2) the point with maximum X-axis value is set to be a push button; (3) the cursor and the push button are used as centers to set small tracking areas respectively; (4) if the distance between the cursor and the push button becomes greater than a designated threshold within a time period, an action of the push button is determined to occur. Images obtained by the video camera are input into a computer through the digital image interface of the video camera or an analog/digital converting card for further processing.Type: GrantFiled: October 20, 2009Date of Patent: February 25, 2014Assignee: Industrial Technology Research InstituteInventors: Chen Lan Yen, Wen Hung Ting, Chia Chang Li, Duan Li Liao
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Patent number: 8643643Abstract: An image depth information refreshing method applied to an image depth information refreshing device is disclosed. The image depth information refreshing device includes a storage unit and an arithmetic logic unit. The storage unit stores a previous depth diagram corresponding to a previous image. The image depth information refreshing method includes the following steps. The arithmetic logic unit divides a current image captured by an image capturing unit into multiple image blocks. The arithmetic logic unit calculates a depth reference value of each image block according to the previous depth diagram, and determines a weight of each image block according to the depth reference values. The arithmetic logic unit determines a refreshing frequency of each image block according to the weights. The arithmetic logic unit respectively refreshes the image block according to the refreshing frequencies of the image blocks, and generates a current depth diagram corresponding to the current image.Type: GrantFiled: December 30, 2010Date of Patent: February 4, 2014Assignee: Industrial Technology Research InstituteInventors: Chia-Chang Li, Duan-Li Liao, Wen-Hung Ting, Po-Lung Chen
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Publication number: 20130315105Abstract: A system and method for improving the handling, management, and retention of particular accounts. An allowable calling number list is generated via a suitable mechanism such as a call center. The allowable calling number list is utilized by telephone number management server to manage inbound call access to suspended accounts. Account representatives are given access to the suspended numbers. Additionally, certain emergency inbound calls may be permitted from select numbers.Type: ApplicationFiled: May 3, 2013Publication date: November 28, 2013Applicant: COMCAST CABLE COMMUNICATIONS, LLCInventors: Chia-Chang Li, Jon Boone, Jaime Jimenez, Chris Kennedy
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Patent number: 8467322Abstract: A system and method for improving the handling, management, and retention of particular accounts. An allowable calling number list is generated via a suitable mechanism such as a call center. The allowable calling number list is utilized by telephone number management server to manage inbound call access to suspended accounts. Account representatives are given access to the suspended numbers. Additionally, certain emergency inbound calls may be permitted from select numbers.Type: GrantFiled: April 19, 2010Date of Patent: June 18, 2013Assignee: Comcast Cable Communications, LLCInventors: Chia-Chang Li, Jon Boone, Jaime Jimenez, Chris Kennedy
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Publication number: 20130088428Abstract: A display control apparatus and a display control method are disclosed. The display control apparatus comprises a recognition circuit and a mapping circuit. The recognition circuit recognizes a head position and a control point position of an operator. The mapping circuit dynamically adjusts the operating boundary according to the head position, the control point position and a display boundary, and calculates the cursor position on a display according to the control point position, the operating boundary and the display boundary, wherein the cursor position remains on a imagine line passing through the head position and the control point position.Type: ApplicationFiled: December 27, 2011Publication date: April 11, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wen-Hung Ting, Chia-Chang Li, Chieh-Fu Tsai, Chien-Chun Kuo, Po-Lung Chen