Patents by Inventor Joo Chan Sohn

Joo Chan Sohn 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: 8787332
    Abstract: A biological signal sensor apparatus worn on a user's body includes: a sensor unit for sensing physical states or movements of a user to generate biological signal data; a wireless communications unit for performing wireless data communications with a wireless sensor network to transmit the biological signal data; a sensor network protocol processing unit for processing protocols for end-to-end communications between the wireless communications unit and the wireless sensor network and for performing a mobility support procedure for the biological signal sensor apparatus; a processor for controlling the wireless data communications, the end-to-end communications, and the mobility support procedure to allow the biological signal sensor apparatus to serve as a mobile wireless sensor node; and a connection unit for connecting the sensor unit and the processor. The biological signal sensor apparatus serves as a mobile wireless sensor node in the wireless sensor network.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 22, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Guk Ha, Joo Chan Sohn, Kyung-Il Kim, Hyeonsung Cho, Young Cheol Go, Hyun Kyu Cho, Young-Jo Cho
  • Patent number: 8775159
    Abstract: Disclosed is a typewriter system and a text input method capable of accurately recognizing words by correcting words input using a mediated interface device based on a dictionary. A plurality of texts are combined by referencing a text recognition order set in which recognition results of texts are arranged according to a recognition order from texts input through the mediated interface device and the combined text is filtered using part index maps formed of part words that are an accumulated set of texts forming complete words. The part words passing through the part index maps is again filtered using a dictionary including context information formed of a set of words in a specific category, thereby making it possible to accurately recognize the words. The part words that cannot form words in a dictionary are removed in advance using the part index maps, thereby improving the recognition efficiency.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: July 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dae Ha Lee, Jae Hong Kim, Min Su Jang, Chan Kyu Park, Hyeon Sung Cho, Sang Seung Kang, Cheon Shu Park, Joo Chan Sohn, Jae Yeon Lee, Yun Koo Chung
  • Publication number: 20140122409
    Abstract: An apparatus and method for building a map of probability distribution are provided. The apparatus for building the map of probability distribution includes: a sensor information collector configured to collect sensor information from a plurality of sensors; as object recognizer configured to recognize an object by integrating and inferring the sensor information, and to acquire object information; and a probability distribution creator configured to determine whether to apply an object property model including at least one of kinematic properties, shape properties, and probabilistic properties in correspondence to the object information, to acquire object properties corresponding to the object information, and to create a probability distribution based on foe object properties. Accordingly, it is possible to build a map with high reliability.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 1, 2014
    Applicant: ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki In NA, Jae Min BYUN, Myung Chan ROH, Joo Chan SOHN, Sung Hoon KIM
  • Patent number: 8705814
    Abstract: Disclosed is a method of detecting an upper body. The method includes detecting an omega candidate area including a shape formed of a face and a shoulder line of a human from a target image, cutting the target image into the upper body candidate area including the omega candidate area, detecting a human face from the upper body candidate area, and judging whether the upper body of the human is included in the target image according to the result of detecting the human face.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 22, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Han Yun, Do Hyung Kim, Jae Yeon Lee, Kyu Dae Ban, Dae Ha Lee, Mun Sung Han, Ho Sub Yoon, Su Young Chi, Yun Koo Chung, Joo Chan Sohn, Hye Jin Kim, Young Woo Yoon, Jae Hong Kim, Jae Il Cho
  • Patent number: 8690348
    Abstract: Provided is a system for adjusting an image of a beam projector using a camera attached remote controller and a method thereof. The system for adjusting images of a beam projector according to the present invention includes: a remote controller photographing test images projected on a screen and detecting pattern images from the photographed test images and generating control information including at least one parameter necessary to adjust the images through the detected pattern images; and a beam projector receiving the control information for adjusting images from the remote controller and adjusting the input image by using parameters included in the received control information and outputting them to the screen. Therefore, the present invention adjusts colors and geometrical shapes of images at a user's viewpoint, thereby making it possible to improve the satisfaction of user and implement the system in various forms.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jeong Nam Yeom, Sung Hoon Kim, Joon Myun Cho, Joo Chan Sohn
  • Publication number: 20140085641
    Abstract: A piling location recognizing apparatus and method for accurately determining a piling location using an optical sensor. The piling location recognizing apparatus includes an optical sensor moving unit configured to move on an installed moving line according to a predetermined angle with respect to a recognition target object, an optical sensor recognizing unit mounted on the optical sensor moving unit to acquire information on the recognition target object using an optical sensor, and a piling location calculating unit configured to calculate vertical location coordinates of the recognition target object on a basis of the acquired information on the recognition target object. Accordingly, despite environmental pollution or damage of an identification tag adhered to an object in a piling place in which objects are piled up, an in-yard location of the piled object can be accurately determined.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 27, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Joo Chan SOHN, Jae Min BYUN, Ki In NA, Myung Chan ROH, Sung Hoon KIM
  • Patent number: 8606295
    Abstract: Disclosed are a device and a method for localizing a user indoors using a wireless local area network, and more particularly, a localization device and a localization method that improve localization accuracy by fusing various context information when localizing a user-portable/wearable device connected with a wireless network based on an RF-based wireless network such as ZigBee.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 10, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Min Su Jang, Jae Hong Kim, Joo Chan Sohn, Hee Sung Chae, Jae Yeon Lee, Do Hyung Kim, Chan Kyu Park
  • Patent number: 8552871
    Abstract: Disclosed are an apparatus and a method for sensing photoplethysmogram and fall. According to the present invention, the apparatus and for sensing photoplethysmogram and fall may include: a sensor unit that senses acceleration and photoplethysmogram; a photoplethysmogram/fall determining module that synthetically tests sensed acceleration signals and photoplethysmogram signals sensed by the sensor unit to determine whether emergency occurs due to fall or emergency occurs due to photoplethysmogram; and a communication module that transmits the test results.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: October 8, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chan Kyu Park, Jae Hong Kim, Joo Chan Sohn, Jae Yeon Lee, Yun Koo Chung
  • Patent number: 8548201
    Abstract: The present invention detects a candidate ROI group associated with character strings/figure strings on the basis of a result acquired through prior learning of various types of license plates, verifies the interested region candidate group detected by using at least one condition of five predetermined conditions, and determines an MBR region in the selected ROI region from the verified interested region candidate group by considering a ratio between the height and width of the ROI region to recognize the license plate for the automobile. According to the present invention, it is possible to automatically detect the location of the license plate regardless of various types of license plate specifications defined for each of countries.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: October 1, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Ho Sub Yoon, Kyu Dae Ban, Young Woo Yoon, Woo Han Yun, Do Hyung Kim, Jae Yeon Lee, Jae Hong Kim, Su Young Chi, Joo Chan Sohn
  • Publication number: 20130218395
    Abstract: Disclosed are a mobile apparatus and a method for controlling the same. More particularly, disclosed are an autonomous mobile apparatus and a method for controlling the same. The method for controlling an autonomous mobile apparatus disclosed in the specification includes: recognizing a direction of a call signal based on the call signal; receiving and analyzing video information regarding the direction; estimating a position of a signal source of the call signal using the sound source localization and the detected person's shape; generating a moving command to the position of the signal source; and recognizing the subject of the signal source after movement according to the moving command.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 22, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Kim, Kang Woo Lee, Hyoung sun Kim, Young Ho SUH, Joo Chan SOHN
  • Publication number: 20130177204
    Abstract: Disclosed are an apparatus for tracking a location of a hand, includes: a skin color image detector for detecting a skin color region from an image input from an image device using a predetermined skin color of a user; a face tracker for tracking a face using the detected skin color image; a motion detector for setting a ROI using location information of the tracked face, and detecting a motion image from the set ROI; a candidate region extractor for extracting a candidate region with respect to a hand of the user using the skin color image detected by the skin color image detector and the motion image detected by the motion detector; and a hand tracker for tracking a location of the hand in the extracted candidate region to find out a final location of the hand.
    Type: Application
    Filed: August 28, 2012
    Publication date: July 11, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Woo Han YUN, Jae Yeon Lee, Do Hyung Kim, Jae Hong Kim, Joo Chan Sohn
  • Publication number: 20130177247
    Abstract: Disclosed is a method of sequencing character information in order to increase precision of character recognition. The method includes: a pre-processing that extracts character information from an image to binarize the extracted character information through a predetermined threshold and extracts and thins a center line of the binarized character information; normalizing the pre-processed character information to character information according to a predetermined criteria; and sequencing the normalized character information using structural features including an end point or a divergence point of the character information. The present invention suggests an angle normalization method of input character information, a structural feature position determining method, and a structural feature numeral string generating method to strongly recognize characters configured by various fonts obtained from a natural scene regardless of an angle or a size of the characters.
    Type: Application
    Filed: August 30, 2012
    Publication date: July 11, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ho Sub YOON, Ji Eun KIM, Kyu Dae BAN, Dong Jin LEE, Jae Hong KIM, Joo Chan SOHN
  • Publication number: 20130178185
    Abstract: Disclosed are a wearable behavioral pattern collecting apparatus for generating collected information by analyzing a behavioral pattern of a wearer, and generating and thereby transmitting emergency call information when an emergency situation occurs, a network including a repeater to transmit information received from the behavioral pattern collecting apparatus to a remote monitoring server, and a behavioral pattern analyzing system and method for transmitting information on an emergency accident and a position of the wearer to a corresponding institution or a corresponding person in charge when an emergency situation such as a falling accident or the emergency accident occurs by observing a change in the behavioral pattern of the wearer.
    Type: Application
    Filed: August 15, 2012
    Publication date: July 11, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chan Kyu PARK, Jae Hong KIM, Cheon Shu PARK, Sang Seung KANG, Min Su JANG, Joo Chan SOHN
  • Publication number: 20130163858
    Abstract: Disclosed are a component recognizing apparatus and a component recognizing method. The component recognizing apparatus includes: an image preprocessing unit configured to extract component edges from an input component image by using a plurality of edge detecting techniques, and detect a component region by using the extracted component edges; a feature extracting unit configured to extract a component feature from the detected component region, and create a feature vector by using the component feature; and a component recognizing unit configured to input the created feature vector to an artificial neural network which has learned in advance to recognize a component category through a plurality of component image samples, and recognize the component category according to a result.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 27, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kye Kyung KIM, Woo Han YUN, Hye Jin KIM, Su Young CHI, Jae Yeon LEE, Mun Sung HAN, Jae Hong KIM, Joo Chan SOHN
  • Publication number: 20130163829
    Abstract: Disclosed are a system and a method for recognizing a disguised face using a Gabor feature and a support vector machine (SVM) classifier according to the present invention. The system for recognizing a disguised face includes: a graph generation means to generate a single standard face graph from a plurality of facial image samples; a support vector machine (SVM) learning means to determine an optimal classification plane for discriminating a disguised face from the plurality of facial image samples and disguised facial image samples; and a facial recognition means to determine whether an input facial image is disguised using the standard face graph and the optimal classification plane when the facial image to be recognized is input.
    Type: Application
    Filed: August 2, 2012
    Publication date: June 27, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kye Kyung KIM, Jae Yeon LEE, Ho Sub YOON, Jae Hong KIM, Joo Chan SOHN
  • Patent number: 8466811
    Abstract: Provided are a thimble-type intermediation device and a method for recognizing a finger gesture using the same. The thimble-type intermediation device includes: a motion sensing unit sensing a motion of a user's finger and generating the sensed result as motion data; a tactile sensing block sensing a tactile behavior of the user's finger and generating the sensed result as tactile data; a control unit recognizing the gesture and tactile behavior of the user's finger on the basis of the generated motion data and tactile data, and outputting the recognition result as recognition result information; and a wireless communication unit transmitting the recognition result information to a robot system.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: June 18, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang Seung Kang, Jae Hong Kim, Chan Kyu Park, Cheon Shu Park, Dae Ha Lee, Min Su Jang, Hyeon Sung Cho, Joo Chan Sohn, Jae Yeon Lee, Yun Koo Chung
  • Publication number: 20130148857
    Abstract: Disclosed are an apparatus for extracting a character area in a vehicle number plate and a method thereof. An apparatus for extracting a character area in a vehicle number plate according to an exemplary embodiment of the present invention includes a candidate area extracting unit configured to extract a plurality of character candidate areas from a vehicle number plate image using a plurality of algorithms; a filtering unit configured to determine a final character candidate area from the plurality of extracted character candidate areas; and a character area selecting unit configured to select a final character area from the final character candidate area using geometric information of blobs.
    Type: Application
    Filed: June 27, 2012
    Publication date: June 13, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Young Woo YOON, Ho Sub YOON, Kyu Dae BAN, Jae Hong KIM, Joo Chan SOHN
  • Publication number: 20130079030
    Abstract: A space recognition system obtains available RSSI (Received Signal Strength Indicator) information for a plurality of fixing devices in the vicinity of a user device in the wireless sensor network environment, collects environment information in a space where the user device is located, and collects environment information in a plurality of spaces in which the fixing devices are respectively located. The system combines the RSSI information and the environment information and performs a recognition function on the combined environment information to recognize the space in which a user having the user device is located.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 28, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: SANG SEUNG KANG, Min Su JANG, Jae Hong KIM, JOO CHAN SOHN
  • Publication number: 20120215383
    Abstract: A security control service system includes: a track security apparatus for traveling along a track installed in a place to be secured, and obtaining and transmitting security information to a security control apparatus; an autonomous mobile robot apparatus for traveling along the track together with the track security apparatus or freely traveling in the place to be secured, and obtaining and transmitting security information to the security control apparatus; and the security control apparatus for transmitting a control command for security control to the track security apparatus or the autonomous mobile robot apparatus after analyzing the security information.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 23, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ho sub YOON, Jae Yeon LEE, Do-Hyung KIM, Hye Jin KIM, Kyu Dae BAN, Youngwoo YOON, Woo-han YUN, Jae Hong KIM, Joo Chan SOHN, Heesung CHAE
  • Publication number: 20120166190
    Abstract: The present invention has been made in an effort to provide an apparatus for removing noise for sound/voice recognition removing a TV sound corresponding to a noise signal by using an adaptive filter capable of adapting a filter coefficient in order to remove an analogue signal and performing sound and/or voice recognition and a method thereof.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 28, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jae Yeon Lee, Mun Sung Han, Jae Il Cho, Jae Hong Kim, Joo Chan Sohn