Patents by Inventor Hyun Yi

Hyun Yi 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: 20160371473
    Abstract: A code obfuscation device and a method of obfuscating a code of an application program file are disclosed. The code obfuscation device includes an extraction circuit uncompressing an application program file to extract a Dalvik executable file, a code analysis circuit analyzing a bytecode of the Dalvik executable file, a control circuit determining an obfuscation character and a number and a location of the obfuscation character to be inserted in the bytecode, and an identifier conversion circuit inserting the obfuscation character in the bytecode to convert an identifier of the bytecode. Since the identifier of the bytecode is converted using an obfuscation character, which corresponds to a character that is invisible on a screen or has a different Unicode from another character displayed on the screen as a same shape as the character, the application program file has an increased resistance to a reverse engineering attack.
    Type: Application
    Filed: March 6, 2015
    Publication date: December 22, 2016
    Applicant: Soongsil University Research Consortium Techno-Park
    Inventors: Jeong-Hyun Yi, Sung-Ryoung Kim, Geon-Bae Na, Yong-Jin Park
  • Publication number: 20160346729
    Abstract: A facility for purifying harmful gas disposing harmful gas discharged from at least one process chamber in which processes are performed in the vacuum status by a vacuum pump, the facility including: one or a plurality of microwave generators generating microwave; a plurality of wave guides including a wave path through which the microwave generated by the microwave generator is provided; a plasma discharge chamber including the wave guides connected by a certain distance along the harmful gas flow direction outside; and a shield installed inside the plasma discharge chamber preventing ions or electrons for the plasma discharge from leaking outside by contacting with the plasma discharge chamber.
    Type: Application
    Filed: March 28, 2016
    Publication date: December 1, 2016
    Applicant: Core Plasma Technology Inc.
    Inventors: Won Ju YI, David Young Eun Yi, Daniel Young Hyun Yi
  • Publication number: 20160352522
    Abstract: A user terminal for detecting forgery of an application program based on signature information and a method of detecting forgery of an application program using the user terminal are disclosed. The user terminal includes a signature information extraction circuit, a communication circuit and a forgery determination circuit. When the application program is installed on the user terminal, the signature information extraction circuit extracts the signature information of the application program on a platform level. When the application program is executed, the communication circuit transmits information of the user terminal and the application program to an authentication server on the platform level to receive original signature information of the application program from the authentication server, or receives the original signature information from a peripheral device paired with the user terminal.
    Type: Application
    Filed: March 6, 2015
    Publication date: December 1, 2016
    Applicant: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Jeong-Hyun YI, Ji-Woong BANG, Tae-Joo CHO
  • Patent number: 9507565
    Abstract: Configurable specialized processing blocks, such as DSP blocks, are described that implement fixed and floating-point functionality in a single mixed architecture on a programmable device. The described architecture reduces the need to construct floating-point functions outside the configurable specialized processing block, thereby minimizing hardware cost and area. The disclosed architecture also introduces pipelining into the DSP block in order to ensure the floating-point multiplication and addition functions remain in synchronicity, thereby increasing the maximum frequency at which the DSP block can operate. Moreover, the disclosed architecture includes logic circuitry to support floating-point exception handling.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: November 29, 2016
    Assignee: ALTERA CORPORATION
    Inventors: Keone Streicher, Martin Langhammer, Yi-Wen Lin, Hyun Yi
  • Publication number: 20160330030
    Abstract: A user terminal for detecting forgery of an application program based on a hash value and a method of detecting forgery of an application program using the user terminal are disclosed. The user terminal includes a communication circuit, a hash value generation circuit and a forgery determination circuit. When the application program is executed, the communication circuit transmits information of the user terminal and the application program to an authentication server on a platform level to receive an original hash value of the application program from the authentication server, or to receive the original hash value from a peripheral device paired with the user terminal. The hash value generation circuit generates the hash value of the application program on the platform level.
    Type: Application
    Filed: March 6, 2015
    Publication date: November 10, 2016
    Applicant: Soongsil University Research Consortium Techno-Park
    Inventors: Jeong-Hyun Yi, Myeong-Ju Ji, Ji-Woong Bang, Tae-Joo Cho
  • Publication number: 20160271104
    Abstract: The present invention provides a composition comprising an indirubin derivative for stimulating longitudinal bone growth. Because the composition for stimulating longitudinal bone growth according to the present invention is shown to be effective in longitudinal bone growth, it may be used not only as a composition for stimulating longitudinal bone growth, but also as a pharmaceutical composition for treating or preventing short stature, microplasia, dwarfism, or precocious puberty.
    Type: Application
    Filed: July 10, 2014
    Publication date: September 22, 2016
    Inventors: Kang-Yell Choi, Hyun Yi Kim, Sehee Choi
  • Publication number: 20160275271
    Abstract: A user terminal includes a pairing circuit, a communication circuit, and a control circuit. The pairing circuit receives a normal code of an application from an application providing server in a process of downloading and installing the application from the application providing server, and performs a pairing operation with a peripheral device that stores a core code of the application received from the application providing server. The communication circuit, in a process of executing the application, transmits distinct information of the user terminal to the peripheral device to make the peripheral device encrypt the core code and decrypt the encrypted core code. The control circuit transmits an execution request message to the peripheral device, and receives an execution result of the core code from the peripheral device.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 22, 2016
    Inventors: Jeong-Hyun Yi, Yongjin Park
  • Publication number: 20160239669
    Abstract: A user terminal includes a communication circuit, an encryption-decryption circuit, and an execution circuit. The communication circuit receives a core code file of an application from a peripheral device, which stores the core code file of the application, when certifying a core code of the application. The encryption-decryption circuit encrypts the core code file and transmits the encrypted core code file to the peripheral device, and, when executing the application, receives the encrypted core code file from the peripheral device and decrypts the encrypted core code file. The execution circuit executes the application using the decrypted core code file and a normal code file of the application stored in the user terminal. Since the normal code file is stored in the user terminal and the core code file is stored in the peripheral device, the core code of the application is protected from reverse engineering attacks.
    Type: Application
    Filed: March 6, 2015
    Publication date: August 18, 2016
    Applicant: Soongsil University Research Consortium Techno-Park
    Inventors: Jeong-Hyun Yi, Sung-Ryoung Kim
  • Patent number: 9396313
    Abstract: Disclosed is an apparatus for tamper protection of an application which includes: an input unit that receives codes to be used for an application; a code separator that separates the inputted codes into sensitive codes requiring application tamper protection and general codes including sensitive method calling routine for calling the sensitive codes by analyzing the input codes; an encoder that encrypts the sensitive codes and inserts the address of an sensitive code connector storing the address information of the sensitive codes; a controller that converts the sensitive method calling routine to be able to call dummy codes by inserting the dummy codes to the general codes, inserts vector table generator, to the sensitive codes, and insert a sensitive method calling routine converter, to the sensitive codes; and a code combiner that creates the application by combining the general codes and the sensitive codes.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 19, 2016
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Jeong Hyun Yi, Jin Hyuk Jung
  • Publication number: 20160180065
    Abstract: Disclosed is an apparatus for tamper protection of an application which includes: an input unit that receives codes to be used for an application; a code separator that separates the inputted codes into sensitive codes requiring application tamper protection and general codes including sensitive method calling routine for calling the sensitive codes by analyzing the input codes; an encoder that encrypts the sensitive codes and inserts the address of an sensitive code connector storing the address information of the sensitive codes; a controller that converts the sensitive method calling routine to be able to call dummy codes by inserting the dummy codes to the general codes, inserts vector table generator, to the sensitive codes, and insert a sensitive method calling routine converter, to the sensitive codes; and a code combiner that creates the application by combining the general codes and the sensitive codes.
    Type: Application
    Filed: September 30, 2013
    Publication date: June 23, 2016
    Inventors: Jeong Hyun YI, Jin Hyuk JUNG
  • Patent number: 9306633
    Abstract: A wireless power transmission apparatus and a wireless power transmission system are provided. The wireless power transmission apparatus includes a main body; and a support which is disposed on a side surface of the main body, wherein the main body includes a transmission resonator unit which generates a first magnetic field of a horizontal direction with respect a ground surface and a second magnetic field of a vertical direction with respect to the ground surface.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-jin Choi, Kang-hyun Yi, Eun-il Cho
  • Publication number: 20160077043
    Abstract: There is provided a biochip including: a first substrate having a first surface in which a plurality of grooves are provided to accommodate at least one type of culture medium therein, and including a first electrode which is connected to the plurality of grooves; and a second substrate having a first surface in which a plurality of biomaterial fixing parts are provided to attach at least one type of biomaterial thereto, and including a second electrode which is connected to the plurality of biomaterial fixing parts. The biochip can rapidly and precisely measure a reaction of the biomaterial.
    Type: Application
    Filed: March 20, 2015
    Publication date: March 17, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Sang Hyun YI
  • Patent number: 9276434
    Abstract: A wireless charging apparatus and a wireless charging system using the same are provided. The wireless charging apparatus includes a sensing resonator that senses for an external device; a transmission resonator that transmits energy to the external device by magnetic resonance; and a transmission circuit that controls the transmission resonator in accordance with an output of the sensing resonator.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-jin Choi, Kang-hyun Yi, Joon-hyun Yang
  • Patent number: 9230123
    Abstract: Disclosed is an apparatus for tamper protection of an application which includes: an input unit that receives codes to be used for an application; a code separator that separates the inputted codes into sensitive codes requiring application tamper protection and general codes including sensitive method calling routine for calling the sensitive codes by analyzing the input codes; an encoder that encrypts the sensitive codes and inserts the address of an sensitive code connector storing the address information of the sensitive codes; a controller that converts the sensitive method calling routine to be able to call dummy codes by inserting the dummy codes to the general codes, inserts vector table generator, to the sensitive codes, and insert a sensitive method calling routine converter, to the sensitive codes; and a code combiner that creates the application by combining the general codes and the sensitive codes.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 5, 2016
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Jeong Hyun Yi, Jin Hyuk Jung
  • Patent number: 9232680
    Abstract: An electronic device is provided. The electronic device includes a main frame, an opening portion formed in the main frame, a recess portion formed along a frame of the opening portion lower than a surface of the main frame, and a plate having frames seated on the recess portion, wherein at least one of the frames of the plate is formed of a curved portion that is curved inwardly. Accordingly, it is possible to absorb an external impact and prevent deformation just by a simple structure change of the plate.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Hyun Yi, Byoung-Uk Yoon, Ho-Eun Hwang, Jae-Woo Lee
  • Patent number: 9224327
    Abstract: A display apparatus includes an OLED panel receiving an input of a video signal and a plurality of driving power levels for RGB colors and displaying an image, a video signal providing unit providing the video signal to the OLED panel, and a power supply supplying the plurality of driving power levels to the OLED panel unit and performing individual feedback control for each of the plurality of driving power levels.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byeong-cheol Hyeon, Kang-hyun Yi
  • Patent number: 9150630
    Abstract: There are provided Idbf (inhibitor of Dvl and bone formation) which is a novel Dvl-binding protein that binds to Dvl to inhibit signal transduction carried out through the Wnt/?-catenin signaling pathway, a gene for coding for the same, the use thereof, and the use of an inhibitor of the Idbf. The Idbf was known to be expressed by activation of the Wnt/?-catenin signaling pathway and bind to Dvl to block signal transduction carried out through the Wnt/?-catenin signaling pathway. Therefore, the Idbf can be used in development of medicines for inhibiting the signal transduction carried out through the Wnt/?-catenin signaling pathway, and an Idbf inhibitor can be used in preparation of medicines for activating the signal transduction carried out through the Wnt/?-catenin signaling pathway.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: October 6, 2015
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Kang-Yell Choi, Hyun-Yi Kim, Ju-Yong Yoon
  • Patent number: 9113324
    Abstract: A mobile privacy protection system using a proxy, a proxy device, and a mobile privacy protection method are provided. The mobile privacy protection system includes: an electronic tag to store predetermined tag information; a proxy device to adjust a privacy level of the electronic tag; and a home server to create new tag information in response to a request from the proxy device wherein the new tag information is used to adjust the privacy level.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: August 18, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong Hyun Yi, Taekyoung Kwon, Eunah Kim, Tae Jin Park
  • Publication number: 20150224167
    Abstract: The present disclosure relates to a composition for promoting wound healing that may be used as a pharmaceutical composition, or a cosmetic composition for promoting wound healing, which contains a polypeptide including an amino acid sequence of SEQ ID NO 1. The composition may be usefully used for a wound care drug or a functional cosmetic product for wound care.
    Type: Application
    Filed: December 11, 2014
    Publication date: August 13, 2015
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: KANG-YELL CHOI, SOUNG-HOON LEE, HYUN-YI KIM
  • Patent number: 9078126
    Abstract: Disclosure relates to a method of sharing a session key between wireless communication terminals using a variable-length authentication code. The method includes: generating a public key by using an own private key; generating a message including the public key and a first random number and encoding the message using an own secret key to exchange an encrypted message with the other terminal; decoding the encrypted message of the other terminal by receiving a secret key of the other terminal; generating an authentication code by calculating the first random number and a second random number included in the decoded message; obtaining a medium value from the authenticated code; and generating a session key by using a public key included in the decoded message of the other terminal.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: July 7, 2015
    Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARK
    Inventors: Jeong Hyun Yi, Gun-Il Ma, Hyeong Chan Lee