Patents by Inventor Hyun Roh

Hyun Roh 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: 9054614
    Abstract: An apparatus and method to control a brushless direct current (BLDC) motor, which accurately detect driving current. To this end, the BLDC motor control apparatus includes a BLDC motor, a driver to generate driving current to drive the BLDC motor, a current measurer to measure the driving current, a pulse width modulator to change a driving voltage to drive the BLDC motor; and a controller to control the BLDC motor. The controller detects the amount of the driving current in synchronization with pulse width modulation of the pulse width modulator and determines current with a minimum change due to a variation of counter electromotive force, among currents flowing through a plurality of coils, as the driving current, thereby accurately detecting the driving current.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: June 9, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang Hyun Roh
  • Publication number: 20150134080
    Abstract: A wearable robot may include a gear part having an exoskeleton structure to be worn on legs of a user, a sensor part including a first electromyogram (EMG) sensor attached at a first location of at least one leg of the user, and a second EMG sensor attached at a second location, and a controller to detect a walking assist starting point to assist the user with walking, based on a first EMG signal detected by the first EMG sensor and a second EMG signal detected by the second EMG sensor.
    Type: Application
    Filed: September 3, 2014
    Publication date: May 14, 2015
    Inventor: Chang Hyun ROH
  • Publication number: 20150128503
    Abstract: The present invention relates to a unit for preventing a body part of a user from being caught. The prevention unit according to the present invention is to be coupled to a door and to a door frame, a floor hinge being connected to the lower surface of the door and the upper surface of the door being hinged onto a horizontal frame of the door frame such that the door can rotate about a hinge shaft, the door frame having the horizontal frame and a pair of vertical frames fixed to a wall.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 14, 2015
    Inventor: Seung Hyun Roh
  • Publication number: 20150128120
    Abstract: A method for providing an auto-run service in an electronic device includes identifying state information on the electronic device, performing a first function mapped to the state information on the electronic device based on the state information on the electronic device, determining an event characteristic for the first function, and re-performing the first function when an event corresponding to the event characteristic occurs. Other embodiments including an electronic device for providing an auto-run service are also disclosed.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventors: Seung-Wok Han, Dong-Hyun Roh, Tae-Kyung Kim, Kyung-Sub Min
  • Patent number: 9024385
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: May 5, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Publication number: 20150088269
    Abstract: A wearable robot may comprise: a robot unit including machinery configured to assist a wearer's muscular strength; at least one first sensor provided on the wearer's knees and configured to detect the wearer's motion of pressing the wearer's knees; and/or a controller configured to judge whether or not the wearer intends to stand up based on information detected using the at least one first sensor, and configured to transmit a control signal to assist corresponding muscular strength to the robot unit upon judging that the wearer intends to stand up.
    Type: Application
    Filed: June 12, 2014
    Publication date: March 26, 2015
    Inventor: Chang-Hyun ROH
  • Patent number: 8951853
    Abstract: A method of forming a semiconductor device includes forming a gate electrode and source/drain regions in a semiconductor substrate, forming a first capping nitride layer covering the gate electrode and the source/drain regions, the first capping nitride layer including a Si—H rich SiN layer, annealing the semiconductor substrate having the first capping nitride layer, and removing the first capping nitride layer.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pan-Kwi Park, Dong-Suk Shin, Yong-Kuk Jeong, Dong-Hyun Roh, Ha-Jin Lim
  • Patent number: 8955014
    Abstract: A method and apparatus for browsing a plurality of broadcast programs are provided. The method includes classifying a plurality of broadcast programs into one or more broadcast program groups with reference to electronic program guide (EPG) information or viewing records of a user regarding the broadcast programs, one-dimensionally arranging the broadcast programs so that the broadcast program groups are one-dimensionally arranged, displaying the broadcast programs and the broadcast program groups on a screen as a graphic image, and allowing the user to change a rule used for forming the broadcast program groups. Accordingly, it is possible to enable a user to effectively browse broadcast programs and to provide the user with a user interface customized for the user by using a simple one-dimensional input method and intuitively utilizing EPG information.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-ho Ryu, Yong-sung Kim, Tae-ung Jung, Dong-hyun Roh, Hee-seon Park, Hye-Soo Lee, So-hee Jang, Chang-hwan Choi
  • Publication number: 20150026824
    Abstract: A device and a method for providing user activity information in a portable terminal are provided. The method includes receiving and storing log data from a specific application, generating user situation information representing a current status of a user based on the stored log data, and transmitting the generated user situation information to the specific application.
    Type: Application
    Filed: June 11, 2014
    Publication date: January 22, 2015
    Inventors: Jeong-Ja KIM, Geun-Woo KIM, Sang-Mi KIM, Dong-Hyun ROH, Jae-Won LEE, Jin-Suk LEE, Han-Jin LEE, Sang-Yeong CHUNG
  • Patent number: 8892257
    Abstract: Disclosed is a method of absorbing an impact generated when a foot of a walking robot lands on the ground to perform the walking of the walking robot. When the foot of the walking robot lands on the ground, an F/T sensor installed on the sole or the ankle of the foot measures external force and the posture of the sole of the foot is adjusted in a direction of complying with the external force, and thus an impact transmitted to the walking robot in landing is absorbed. Further, the posture adjusting speed of the sole of the foot is adjusted according to walking speeds (stopped, walking, running).
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang Hyun Roh
  • Patent number: 8843555
    Abstract: Provided are a system and a method for providing a neighbor connect service. The neighbor connect service method sets up a neighbor relationship between internal blogs and external blogs and provides information about a blog set up as the neighbor relationship based on the neighbor connect service.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 23, 2014
    Assignee: NHN Corporation
    Inventors: Sam Yeol Lim, Young Suk Kwon, Myong Jin Chong, Hui Joung Hwang, David Lee, Myung Hun Kang, Min Jung Kim, Chan Hyun Roh, Sun Woo Jeong
  • Publication number: 20140138745
    Abstract: Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.
    Type: Application
    Filed: September 23, 2013
    Publication date: May 22, 2014
    Inventors: Dong-Suk Shin, Hyun-Chul Kang, Dong-Hyun Roh, Pan-Kwi Park, Geo-Myung Shin, Nae-In Lee, Chul-Woong Lee, Hoi-Sung Chung, Young-Tak Kim
  • Patent number: 8676381
    Abstract: A humanoid robot that achieves stable walking based on servo control of a joint torque and a walking control method thereof. The humanoid robot calculates a joint position trajectory compensation value and a joint torque compensation value using a measurement value of a sensor, compensates for a joint position trajectory and a joint torque using the calculated compensation value, and drives a motor mounted to each joint according to the compensated joint torque.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: March 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woong Kwon, Joong Kyung Park, Ju Suk Lee, Chang Hyun Roh, Min Hyung Lee, Jae Ho Park, Joo Hyang Kim, Ho Seong Kwak
  • Publication number: 20130339383
    Abstract: A location recognition method is provided. The method includes determining location search targets in a DataBase (DB) including location information on the basis of first network information, selecting at least one place from the determined location search targets on the basis of second network information, measuring a relative distance by using first signal strength and second signal strength with respect to the selected at least one place, and recognizing the selected at least one place as a current location on the basis of the relative distance. Accordingly, various personalized service scenarios can be provided to the user.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Moon-Bae SONG, Dong-Hyun ROH, Kyung-Sub MIN
  • Patent number: 8538952
    Abstract: An apparatus and method to search content in a multimedia device, and more particularly, an apparatus and method to efficiently search content in a multimedia device using various metadata of the content, the apparatus including: a content storage unit to store content; a metadata storage unit to store metadata of the stored content; a user input unit to receive an input of a current arrangement standard, from one or more arrangement standards corresponding to the metadata, from a user; a content arrangement unit to arrange the stored content according to the current arrangement standard; and a user interface provision unit to provide a user interface that displays the arranged content.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-sung Kim, Tae-ung Jung, Dong-hyun Roh, So-hee Jang
  • Patent number: 8509948
    Abstract: Disclosed are a walking robot and a method of controlling the same, in which impedance control and torso tilt control are achieved complementarily such that impedance can be adjusted according to the tilt of a torso or the tilt of the torso can be adjusted according to the impedance. The method includes measuring a moment of a foot; measuring a tilt of a torso; adjusting the scale of the measured moment based on the tilt of the torso, and controlling the foot based on the scale-adjusted moment; and adjusting the scale of the measured tilt based on a ZMP variation amount of the foot, and controlling the tilt of the torso based on the scale-adjusted ZMP variation amount.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Hyun Roh, Woong Kwon
  • Patent number: 8436722
    Abstract: A gateway control apparatus for vehicles includes a receiver configured to receive vehicle state information from vehicle ECUs and a vehicle-to-vehicle distance from an intelligent cruise control unit. The gateway control apparatus also includes a first memory to store the vehicle state information, a calculation unit to calculate a relative velocity and a relative acceleration from the vehicle state information, and to calculate a collision index. A determination unit determines if the collision index exceeds a predetermined value. A vehicle information management unit determines an accident occurrence time point when the collision index exceeds the predetermined value, and allows the first memory to store pre-accident and post-accident vehicle state information. The gateway control apparatus stores the pre-accident and post-accident vehicle state information even in the case of a fender bender or minor collision to use the stored information for post-accident judgment.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: May 7, 2013
    Assignee: Mando Corporation
    Inventors: Seung Hyun Roh, Min Woo Park, Doo Kyum Kim
  • Patent number: 8363113
    Abstract: Disclosed are a terminal and a blogging method thereof. In the blogging method, a preview image displayed through a camera is recognized to acquire information of the preview image. It is determined whether there is a stored blog that has background information that is identical to the information of the preview image, and if a stored blog has background information that is identical to the information of the preview image, contents of the stored blog that uses the preview image as its background are imported and the imported contents are displayed on the preview image.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: January 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Suk-un Kim, Dong-hyun Roh, Yeong-geol Kim
  • Patent number: 8358912
    Abstract: A method of synchronizing broadcast contents between a broadcast recorder and a portable content player and an apparatus for the same are disclosed. The broadcast content synchronizing method includes obtaining metadata about broadcast contents stored in a portable content player from the portable content player; confirming a broadcast content that has already been reproduced among the broadcast contents stored in the portable content player by the obtained metadata; retrieving a broadcast content corresponding to the next installment of the confirmed broadcast content from recorded broadcast contents; and storing the retrieved broadcast content in the portable content player.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: January 22, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-ho Ryu, Seong-hoon Kang, Kyoung-gu Woo, Dong-hyun Roh
  • Patent number: 8340474
    Abstract: A method of browsing contents and an apparatus for browsing the same are provided. The method includes providing a plurality of characteristic vector types and a plurality of characteristic value types that correspond to a reference characteristic vector type selected from the plurality of characteristic vector types, and determining an arrangement order of preview information of contents according to a reference characteristic value type that is selected from the plurality of characteristic value types, and providing the preview information in the arrangement order.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: December 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-sung Kim, Tae-ung Jung, Dong-hyun Roh, So-hee Jang