Patents by Inventor Wen-Hao Wang

Wen-Hao Wang 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).

  • Publication number: 20170228944
    Abstract: A method for billing of a parking fee includes the steps of: when it is determined that neither license plate identifier data nor time data is stored in a storage unit, that no target is contained in a current image, and that a license plate identifier is recognized in the current image, storing time at which the current image is captured and the license plate identifier in the storage unit to respectively serve as the time data and the license plate identifier data; and when it is determined that the license plate identifier data and the time data are stored, and that the license plate identifier is recognized, calculating a parking fee of the vehicle according to a parking rate, the time data, and the time at which the current image is captured.
    Type: Application
    Filed: August 23, 2016
    Publication date: August 10, 2017
    Inventors: Kung-Ming LAN, Wen-Hao WANG, Ching-Tien LIN
  • Patent number: 9607615
    Abstract: A method and an apparatus for classifying spoken content in a teleconference for a follower of the teleconference is disclosed. The method comprises: detecting a topic to which the spoken content belongs; determining a (overall) correlation degree between the follower and the spoken content at least according to a correlation degree between the follower and the topic; and classifying the spoken content according to the (overall) correlation degree between the follower and the spoken content. With the method and the apparatus, the correlation degree between the spoken content in the teleconference and the follower of the teleconference can be determined automatically, and the spoken content can be classified according to the correlation degree, so that the follower can selectively pay attention to some spoken contents during the teleconference, which reduces a burden of the follower and improves conference efficiency.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: March 28, 2017
    Assignee: International Business Machines Corporation
    Inventors: Yan Feng Han, Peng Jiang, Wen Hao Wang
  • Publication number: 20160228224
    Abstract: A portable teeth rinsing machine includes a base and a spray gun. The base includes an air compression device to generate compressed air and a liquid compression device to generate a compressed liquid. The spray gun communicates with the air compression device and the liquid compression device, and includes an air directing passage to get the compressed air, a liquid directing passage to get the compressed liquid, a first depressing portion located in the air directing passage and triggered to output the compressed air, and a second depressing portion located in the liquid directing passage and triggered to output the compressed liquid.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 11, 2016
    Inventor: Wen-Hao WANG
  • Patent number: 9218066
    Abstract: A computer program product is provided and includes a non-transitory tangible storage medium readable by a processing circuit and on which instructions are stored for execution by the processing circuit for performing a method. The method includes enabling retrieval of a keyboard pressed sequence of characters of a first type, permitting a re-selection of characters of a second type, which are associated with the keyboard pressed sequence of the characters of the first type and permitting modification of the keyboard pressed sequence of the characters of the first type to initiate a search for and retrieval of characters of the second type.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 22, 2015
    Assignee: International Business Machines Corporation
    Inventors: Lei Chen, Jenny S. Li, Wen Hao Wang
  • Publication number: 20150199962
    Abstract: A method and an apparatus for classifying spoken content in a teleconference for a follower of the teleconference is disclosed. The method comprises: detecting a topic to which the spoken content belongs; determining a (overall) correlation degree between the follower and the spoken content at least according to a correlation degree between the follower and the topic; and classifying the spoken content according to the (overall) correlation degree between the follower and the spoken content. With the method and the apparatus, the correlation degree between the spoken content in the teleconference and the follower of the teleconference can be determined automatically, and the spoken content can be classified according to the correlation degree, so that the follower can selectively pay attention to some spoken contents during the teleconference, which reduces a burden of the follower and improves conference efficiency.
    Type: Application
    Filed: January 6, 2015
    Publication date: July 16, 2015
    Inventors: Yan Feng Han, Peng Jiang, Wen Hao Wang
  • Patent number: 8976118
    Abstract: A computer program product is provided and includes a non-transitory tangible storage medium readable by a processing circuit and on which instructions are stored for execution by the processing circuit for performing a method. The method includes enabling retrieval of a keyboard pressed sequence of characters of a first type, permitting a re-selection of characters of a second type, which are associated with the keyboard pressed sequence of the characters of the first type and permitting modification of the keyboard pressed sequence of the characters of the first type to initiate a search for and retrieval of characters of the second type.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: March 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Lei Chen, Jenny S. Li, Wen Hao Wang
  • Patent number: 8922651
    Abstract: A moving object detection method and an image processing system thereof are provided. First, a pixel-wise distance of a received image to a reference image is computed to obtain a distance map. A histogram analysis is performed on the distance map to obtain a distance distribution. An entropy value of the distance distribution is computed and a peak distance value which is with a maximum occurrence probability in the distance distribution is searched out. Then, by using a mapping rule, the entropy value and the peak distance value are transformed into a decision threshold value. The decision threshold value is applied in classifying the pixels of the distance map into a group of foreground attributes and a group of background attributes and thereby moving objects in the current image are obtained.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Tai-Hui Huang, Tsung-Chan Li, Wen-Hao Wang
  • Publication number: 20140104182
    Abstract: A computer program product is provided and includes a non-transitory tangible storage medium readable by a processing circuit and on which instructions are stored for execution by the processing circuit for performing a method. The method includes enabling retrieval of a keyboard pressed sequence of characters of a first type, permitting a re-selection of characters of a second type, which are associated with the keyboard pressed sequence of the characters of the first type and permitting modification of the keyboard pressed sequence of the characters of the first type to initiate a search for and retrieval of characters of the second type.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lei Chen, Jenny S. Li, Wen Hao Wang
  • Publication number: 20130191110
    Abstract: A computer program product is provided and includes a non-transitory tangible storage medium readable by a processing circuit and on which instructions are stored for execution by the processing circuit for performing a method. The method includes enabling retrieval of a keyboard pressed sequence of characters of a first type, permitting a re-selection of characters of a second type, which are associated with the keyboard pressed sequence of the characters of the first type and permitting modification of the keyboard pressed sequence of the characters of the first type to initiate a search for and retrieval of characters of the second type.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lei Chen, Jenny S. Li, Wen Hao Wang
  • Patent number: 8472717
    Abstract: A foreground image separation method is disclosed to separate dynamic foreground and static background in a sequence of input images which have been processed either with automatic white balance or brightness control by the camera. First, an input image is received from the camera, and then a white balance or brightness compensation is performed to the input image according to a reference image to generate a compensated image with background color and background brightness which are approximately similar to that of the reference image. Finally, a background subtraction algorithm is performed to the compensated image to generate a background separation result. The background subtraction algorithm could be a Gaussian Mixture Model based algorithm. The method could process successive images received from the camera to continuously generate background separation results and update the reference image accordingly, such that video surveillance system could adapt to the change of illumination.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: June 25, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Wen-Hao Wang, Tai-Hui Huang
  • Patent number: 8463592
    Abstract: Strings entered into a computer system are converted to a common language. The process of converting strings to a common language comprises determining a user-selected target language, associating a user-selected primary input language with the target language and associating a user-selected secondary input language with the target language. The process further comprises obtaining a string of at least one character, converting the obtained string from the primary input language to the target language if the obtained string corresponds to a valid string in the primary input language and converting the obtained string from the secondary input language to the target language if the obtained string corresponds to a valid string in the secondary input language and is not a valid string in the primary input language.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: June 11, 2013
    Assignee: International Business Machines Corporation
    Inventors: Fang Lu, Lei Wang, Wen Hao Wang
  • Publication number: 20120240058
    Abstract: A method, computer program product, and system for detecting and displaying user status is described. A method may comprise receiving activity data from at least one of an audio input device, a video input device, and a command input device. The method may further comprise calculating a text availability index corresponding, at least in part, to a likelihood of a user to be available for text communication, a voice availability index corresponding, at least in part, to a likelihood of the user to be available for voice communication, and a video availability index corresponding, at least in part to a likelihood of the user to be available for video communication, wherein at least one of the text availability index, the voice availability index, and the video availability index is based upon, at least in part, the activity data.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 20, 2012
    Applicant: International Business Machines Corporation
    Inventors: Al Chakra, Wen Hao Wang
  • Publication number: 20120154580
    Abstract: A moving object detection method and an image processing system thereof are provided. First, a pixel-wise distance of a received image to a reference image is computed to obtain a distance map. A histogram analysis is performed on the distance map to obtain a distance distribution. An entropy value of the distance distribution is computed and a peak distance value which is with a maximum occurrence probability in the distance distribution is searched out. Then, by using a mapping rule, the entropy value and the peak distance value are transformed into a decision threshold value. The decision threshold value is applied in classifying the pixels of the distance map into a group of foreground attributes and a group of background attributes and thereby moving objects in the current image are obtained.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 21, 2012
    Inventors: Tai-Hui Huang, Tsung-Chan Li, Wen-Hao Wang
  • Publication number: 20120029902
    Abstract: Strings entered into a computer system are converted to a common language. The process of converting strings to a common language comprises determining a user-selected target language, associating a user-selected primary input language with the target language and associating a user-selected secondary input language with the target language. The process further comprises obtaining a string of at least one character, converting the obtained string from the primary input language to the target language if the obtained string corresponds to a valid string in the primary input language and converting the obtained string from the secondary input language to the target language if the obtained string corresponds to a valid string in the secondary input language and is not a valid string in the primary input language.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 2, 2012
    Inventors: Fang Lu, Lei Wang, Wen Hao Wang
  • Publication number: 20110038535
    Abstract: A foreground image separation method is disclosed to separate dynamic foreground and static background in a sequence of input images which have been processed either with automatic white balance or brightness control by the camera. First, an input image is received from the camera, and then a white balance or brightness compensation is performed to the input image according to a reference image to generate a compensated image with background color and background brightness which are approximately similar to that of the reference image. Finally, a background subtraction algorithm is performed to the compensated image to generate a background separation result. The background subtraction algorithm could be a Gaussian Mixture Model based algorithm. The method could process successive images received from the camera to continuously generate background separation results and update the reference image accordingly, such that video surveillance system could adapt to the change of illumination.
    Type: Application
    Filed: December 31, 2009
    Publication date: February 17, 2011
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Wen-Hao Wang, Tai-Hui Huang
  • Patent number: 7813527
    Abstract: Disclosed is an object detection method and system in an image plane. A Hidden Markov Model (HMM) is employed and its associated parameters are initialized for an image plane. Updating HMM parameters is accomplished by referring to the previous estimated object mask in a spatial domain. With the updated HMM parameters and a decoding algorithm, a refined state sequence is obtained and a better object mask is restored from the refined state sequence. Consequently, estimation of the HMM parameters can be rapidly achieved and robust object detection can be effected. This allows the resultant object mask to be closer to the real object area, and the false detection in the background area can be decreased.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: October 12, 2010
    Assignee: Industrial Technology Research Institute
    Inventor: Wen-Hao Wang
  • Publication number: 20090129629
    Abstract: Disclosed is a method and apparatus for adaptive object detection, which may be applied in detecting an object having an ellipse feature. The method for adaptive object detection comprises performing an object shape detection based on the extracted foreground from the object; determining whether the object being occluded according to the detected feature statistic information of the object; if the object being not occluded, determining whether to switching object shape detection to ellipse detection; if the object being occluded or necessary to switch to ellipse detection, performing ellipse detection on the foreground; when the foreground being detected to have ellipse features, the object is continuously tracked; and when the current detection being ellipse detection, determining whether the ellipse detection being able to switch back to object shape detection.
    Type: Application
    Filed: January 18, 2008
    Publication date: May 21, 2009
    Inventors: Po-Feng Cheng, Wen-Hao Wang
  • Publication number: 20080118889
    Abstract: The present invention discloses an auxiliary cooling water supplier for a dental implant device, which comprises a main machine having a built-in water-supply module, a conduit, an outlet module, a flowrate control circuit and a pedal. The main machine further comprises a control unit; the control unit is connected to the flowrate control circuit, and the flowrate control circuit is connected to the water-supply module. The user can use the control unit to regulate the flowrate of the outlet module or to switch between an automatic water-supply mode and a pedal control mode. The auxiliary cooling water supplier for a dental implant device of the present invention has the advantages of lightweight, portability, maneuverability, simple structure and easy operation.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Inventor: Wen-Hao Wang
  • Publication number: 20080108010
    Abstract: The present invention discloses an illuminator for a dental drill, which comprises a body having a front end and a rear end and having an accommodation room thereinside, a drill installed at the front end of the body, and an illuminator having a light-emitting diode (LED). The body further has an opening-located portion, and the opening-located portion has a through-hole. The LED is installed in the through-hole and has a light-emitting portion facing outward from the through-hole. The present invention adopts a LED as the light source and is simpler and cheaper than the conventional illuminator using an electric bulb or optical fibers.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Inventor: Wen-Hao Wang
  • Publication number: 20080101653
    Abstract: Disclosed is an object detection method and system in an image plane. A Hidden Markov Model (HMM) is employed and its associated parameters are initialized for an image plane. Updating HMM parameters is accomplished by referring to the previous estimated object mask in a spatial domain. With the updated HMM parameters and a decoding algorithm, a refined state sequence is obtained and a better object mask is restored from the refined state sequence. Consequently, estimation of the HMM parameters can be rapidly achieved and robust object detection can be effected. This allows the resultant object mask to be closer to the real object area, and the false detection in the background area can be decreased.
    Type: Application
    Filed: January 31, 2007
    Publication date: May 1, 2008
    Inventor: Wen-Hao Wang