Patents Represented by Attorney H.C. Park & Associates, PLC
  • Patent number: 8330927
    Abstract: The present invention relates to a display device including a substrate, a display signal line disposed on the substrate, a contact assistant disposed on the pad region of the substrate as a draw-out terminal of the display signal line, a driver IC chip disposed on the substrate and connected to the display signal line through the contact assistant, and a testing thin film transistor disposed between the substrate and the driver IC chip. The testing thin film transistor and the display signal line are connected to each other.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Koo Her, Yong-Han Park
  • Patent number: 8324823
    Abstract: The disclosure relates to an AC LED dimmer and dimming method thereof. The AC LED dimmer includes a rectifier receiving AC voltage from an AC voltage source and full-wave rectifying the AC voltage; a direct current (DC)/DC converter receiving the full-wave rectified voltage from the rectifier, generating a full-wave rectified stepped-up voltage, and generating a pulse enable signal; a pulse width modulation controller receiving the full-wave rectified stepped-up voltage and generating a pulse width modulation signal to dim an AC LED in response to the pulse enable signal; a switch driving the AC LED under control of the pulse width modulation signal, and an electromagnetic interference (EMI) filter to be connected between the AC voltage source and the switch to eliminate electromagnetic interference from the AC voltage source. Accordingly, the dimmer can perform an efficient and linear dimming function and suppress harmonics.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: December 4, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Byung Hoon Choi, In Kyu Park
  • Patent number: 8323999
    Abstract: The present invention relates to a gallium nitride-based compound semiconductor device and a method of manufacturing the same. According to the present invention, there is provided a gallium nitride-based III-V group compound semiconductor device comprising a gallium nitride-based semiconductor layer and an ohmic electrode layer formed on the gallium nitride-based semiconductor layer. The ohmic electrode layer comprises a contact metal layer, a reflective metal layer, and a diffusion barrier layer.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: December 4, 2012
    Assignee: Seoul Opto Device Co., Ltd.
    Inventor: Jong-Lam Lee
  • Patent number: 8325302
    Abstract: In a visible-light blocking member, an infrared sensor including the visible-light blocking member, and a liquid crystal display including the infrared sensor, a visible-light blocking member is a structure including amorphous germanium or a compound of amorphous germanium and has higher transmittance for a wavelength of an infrared ray region than for a wavelength of a visible light region. Accordingly, sensitivity to infrared rays may be increased by applying the visible-light blocking member to the infrared sensor.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: December 4, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeong-Hoon Cho, Sung-Hoon Yang, Kap-Soo Yoon, Ki-Hun Jeong, Kyung-Sook Jeon, Woong-Kwon Kim, Sang-Youn Han, Dae-Cheol Kim, Jung-Suk Bang
  • Patent number: 8323529
    Abstract: The present invention relates to a thiogallate phosphor expressed as AB2S4. The thiogallate phosphor of the present invention is configured by replacing a position A where a divalent ion is required with a trivalent element having an ion size similar to that of the element at the position A and with a monovalent element having an ion size similar to that of the element at the position A. Preferably, the trivalent and monovalent elements are replaced by the same amount. Further, the present invention relates to a white light emitting diode and is to manufacture a white light emitting diode with excellent luminous efficiency.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: December 4, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Kyung Nam Kim, Sang Mi Park, Tomizo Matsuoka
  • Patent number: 8324650
    Abstract: Disclosed are a light emitting device and a method of fabricating the same. The light emitting device includes a substrate; first and second light emitting cells, each including a first semiconductor layer, an active layer, and a second semiconductor layer; and a connector located between the first and second light emitting cells and the substrate, to electrically connect the first and second light emitting cells to each other. The connector extends from the second semiconductor layer of the first light emitting cell, across the substrate, and through central regions of the second semiconductor layer and active layer of the second light emitting cells, to contact the first semiconductor layer of the second light emitting cell.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 4, 2012
    Assignee: Seoul Opto Device Co., Ltd.
    Inventors: Won Cheol Seo, Sum Geun Lee
  • Patent number: 8325017
    Abstract: The present invention relates to a time slot allocation apparatus and method for preventing collisions between time slots in a TDMA-based RFID network. The time slot allocation apparatus allocates time slots, obtained by dividing a same frequency band into unit time slots, to RFID readers for reading identification codes of RFID tags (10) in the TDMA-based RFID network. A time slot allocation device (33a) allocates time slots required for communication with the RFID tags to a plurality of RFID readers (20) provided in the RFID network. A collision prevention device (33b) performs control such that the time slot allocation device allocates time slots to the plurality of RFID readers while distributing different and non-successive time slots to adjacent RFID readers, thus preventing collisions from occurring between time slots allocated to the RFID readers.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: December 4, 2012
    Assignee: INHA-Industry Partnership Institute
    Inventors: Geun Sik Jo, Seung Bo Park, Young Hoon Yu
  • Patent number: 8324612
    Abstract: A thin film transistor (TFT), a method of fabricating the TFT, and a flat panel display having the TFT, wherein the TFT includes a substrate; a gate electrode provided on the substrate; a gate insulating layer provided on the gate electrode; a source electrode and a drain electrode provided on the gate insulating layer and insulated from the gate electrode; and an organic semiconductor layer contacting the source and drain electrodes and insulated from the gate electrode.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: December 4, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hun-Jung Lee, Jae-Bon Koo
  • Patent number: 8327145
    Abstract: A method for transmitting a Rights Object (RO) includes generating a password key by encrypting a password, generating the RO using the password key, and transmitting the RO from a first device to a second device. The second device and the first device share the password and the second device generates the password key using the same encryption method as that used by the first device to generate the password key. The second device decrypts a Message Authentication Code (MAC) key and a Rights Object Encryption Key (REK) using the password key, decrypts a Content Encryption Key (CEK) using the decrypted REK, and verifies integrity of the RO using the decrypted MAC key. The second device can use and/or access content associated with the RO using the decrypted CEK. The CEK may be generated by the first device or may be the CEK from a Rights Issuer.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 4, 2012
    Assignee: Pantech Co., Ltd.
    Inventor: Kun-uk Kim
  • Patent number: 8325131
    Abstract: A system which uses movement of a human body to control a function of a terminal comprises: a detecting device for detecting variation of the movement of the human body depending on an intention of a user so as to transmit a detection signal; and a terminal for storing a reference signal according to at least one class of movement and a control signal corresponding to the reference signal, for searching for a reference signal the same as the detection signal received from the detecting device, and for processing a function based on the control signal corresponding to the reference signal when the reference signal the same as the detection signal is identified. Thereby, a user not only controls the terminal or a driving device, but also performs authentication processing using simple movement of his/her body without any hand operation. A corresponding method for controlling a function using movement of the human body is disclosed.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: December 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Beom-Su Chung
  • Patent number: 8326818
    Abstract: A method of managing websites registered in a search engine in a search engine administration system includes receiving, by an interface module, website information on a website. A website registration module sorts the website information according to an information field. The sorted website information is recorded in a database, and an adult keyword database stores adult keywords. An HTML file of a web page of the website is extracted, and a redirection tag included in the HTML file is extracted by analyzing the HTML file. A character string associated with a target URL of the redirection tag is also extracted so that the adult keyword database is searched for an adult keyword corresponding to the extracted character string. When an adult keyword corresponding to the extracted character string is found, a process for the website is also performed. The process for the website includes contacting a registrant of the website.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: December 4, 2012
    Assignee: NHN Corporation
    Inventors: Young Kwan Kim, Sang Yong Bae
  • Patent number: 8325300
    Abstract: The present invention relates to a display panel that includes a substrate; a first partition arranged on the substrate, defining a first region, and having an undercut; a second partition arranged outside the first partition; a color filter arranged on the substrate and positioned in the first region; and a common electrode arranged on the color filter.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 4, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventor: Chang-Hun Kwak
  • Patent number: 8326268
    Abstract: A method and system for protecting against unauthorized use of a mobile terminal operating with a subscriber identity module (SIM) card is provided. The method for protecting against unauthorized use of a terminal operating with a subscriber identity module (SIM) card compares a secondary version of a temporary identity information stored in a storage unit and a primary version of the temporary identity information stored in the SIM card; sends a message containing a unique identity information to a network when the primary version and the secondary version of the temporary identity information differ from each other; and restricts operation of a function of the terminal when a registration reject message is received in response to the message containing the unique identity information.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: December 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Hoon Ahn, Young Gun Chun
  • Patent number: 8319799
    Abstract: A display device to change an image displayed in a display area when the display area is changed includes a memory, a location output unit and a screen display unit. The memory stores size information of a display area displayed on a screen and the image data of the displayed image. The location computing unit computes a start point of the changed display area when the display area is changed. The display unit decodes data corresponding to the size of the display area based on the computed new start point from the image data to display the decoded data in the display area. Since the start point is obtained with center point of the changed display area and its size information and then a display area to be displayed is determined based on the start point, a current search location is maintained even when the screen is swung.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: November 27, 2012
    Assignee: Pantech Co., Ltd.
    Inventors: Ho Yeon Chae, Chang Soo Ryu
  • Patent number: 8321289
    Abstract: Provided are a method and a system for applying site activity indexes by a site activity index applying system connected to a plurality of user terminals through the Internet. In one embodiment, the method includes checking whether a user who is connected to a web site through the Internet desires to buy a game item, checking whether to use the user's site activity indexes so as to buy the game item, checking whether the user possesses site activity indexes, and exchanging the site activity indexes with game items when the user possesses the site activity indexes. With the method and system for applying site activity indexes user loyalty and game participation may be increased.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 27, 2012
    Assignee: NHN Corporation
    Inventor: Ki-Sung Kim
  • Patent number: 8319248
    Abstract: Disclosed herein is a slim LED package. The slim LED package includes first and second lead frames separated from each other, a chip mounting recess formed on one upper surface region of the first lead frame by reducing a thickness of the one upper surface region below other upper surface regions of the first lead frame, an LED chip mounted on a bottom surface of the chip mounting recess and connected with the second lead frame via a bonding wire, and a transparent encapsulation material protecting the LED chip while supporting the first and second lead frames.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: November 27, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Eun Jung Seo
  • Patent number: 8318044
    Abstract: A light emitting device is disclosed. The light emitting device may include a light emitting diode (LED) for emitting light and phosphor adjacent to the LED. The phosphor may be excitable by light emitted by the LED and may include a first compound having a host lattice comprising first ions and oxygen. In one embodiment, the host lattice may include silicon, the copper ions may be divalent copper ions and first compound may have an Olivin crystal structure, a ?-K2SO4 crystal structure, a trigonal Glaserite (K3Na(SO4)2) or monoclinic Merwinite crystal structure, a tetragonal Ackermanite crystal structure, a tetragonal crystal structure or an orthorhombic crystal structure. In another embodiment, the copper ions do not act as luminescent ions upon excitation with the light emitted by the LED.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: November 27, 2012
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Chung-Hoon Lee, Gundula Roth, Walter Tews
  • Patent number: 8318345
    Abstract: An electrode assembly comprising an electrode tab or an electrode plate substrate which has an identification mark formed thereon and a lithium rechargeable battery using the same are disclosed. This identification mark makes it possible to easily check the record of the manufacturing processes of the battery, including production equipment, production date, line operators, and production lines when a battery malfunctions. This identification mark may prevent a replica of the defective component from being manufactured.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: November 27, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jong Ku Kim, Hyoung Su Kim
  • Patent number: 8320534
    Abstract: A method for connecting a calling terminal to a called terminal includes establishing a first session to a video server and a call connection request to the called terminal, receiving ringback tone (RBT) video data from the video server using the established first session during a waiting time before a response from the called terminal for the request is received, generating a setup flag to set a connection environment with the called terminal to perform a fast setup between the calling terminal and the called terminal, and transmitting the generated setup flag to the called terminal through a second session established by the called terminal. A system to perform the method includes an establishing unit to establish the first session, an RBT video data receiving unit to receive the RBT video data, a setup flag generating unit, and a setup flag transmitting unit.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 27, 2012
    Assignee: Pantech Co., Ltd.
    Inventors: Kunsik Kim, Doohyoung Lee, Hyukjae Choi
  • Patent number: 8318523
    Abstract: A thin film transistor, a method of fabricating the same, and an OLED display device having the same. The thin film transistor includes a substrate, a semiconductor layer disposed on the substrate and having a channel region, source and drain regions, and a body contact region, a gate insulating layer disposed on the semiconductor layer to expose the body contact region, a silicon layer disposed on the gate insulating layer and contacting the body contact region exposed by the gate insulating layer, a gate electrode disposed on the silicon layer, an interlayer insulating layer disposed on the gate electrode, and source and drain electrodes disposed on the interlayer insulating layer and electrically connected with the source and drain regions, wherein the body contact region is formed in an edge region of the semiconductor layer.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: November 27, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Keon Park, Jin-Wook Seo, Tae-Hoon Yang, Kil-Won Lee, Dong-Hyun Lee