Patents Assigned to Samsung Electroncs Co., LTD
  • Patent number: 10638383
    Abstract: A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 28, 2020
    Assignee: Samsung Electroncs Co., Ltd.
    Inventors: Jung-Min Moon, Anshuman Nigam, Jung-Soo Jung, Sun-Heui Ryoo, Sung-Jin Lee
  • Patent number: 9426757
    Abstract: A method and an apparatus for use in a multiuser radio communication system for transmitting and receiving a signal in a Multiple Input and Multiple Output (MIMO) broadcast channel with an imperfect Channel State Information at the Transmitter (CSIT) are provided. The signal transmission/reception method includes receiving CSI from each of a plurality of receivers, determining a transmit power and a transmission rate based on the CSI qualities of the plurality of receivers calculated from the CSI from each of the plurality of receivers, and transmitting the signal using the transmit power and the transmission rate. The present disclosure is capable of maximizing system throughput in wireless communication system.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: August 23, 2016
    Assignees: Samsung Electroncs Co. Ltd., Imperial Innovations Ltd.
    Inventors: Seunghoon Choi, Chenxi Hao, Bruno Clerckx
  • Patent number: 9041063
    Abstract: High electron mobility transistors (HEMTs) and methods of manufacturing the same. A HEMT may include a source electrode, a gate electrode, a drain electrode, a channel formation layer including at least a 2-dimensional electron gas (2DEG) channel, a channel supplying layer for forming the 2DEG channel in the channel formation layer, a portion of the channel supplying layer including a first oxygen treated region. The channel supplying layer may include a second oxygen treated region that extends from the first oxygen treated region towards the drain electrode, and the depth and concentration of oxygen of the second oxygen treated region may be less than those of the first oxygen treated region.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 26, 2015
    Inventor: In-jun Hwang
  • Patent number: 8725183
    Abstract: A base station management method according to the present invention is a method for managing an operation mode of a base station, and includes determining whether a terminal exists in a cell managed by the base station and operating in a low duty operation mode (LDM) when no terminal exists in the cell.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 13, 2014
    Assignees: Samsung Electroncs Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Won-Ik Kim, Jae Sun Cha, Sung Cheol Chang, Kwang Jae Lim, Hyun-Jae Kim, Sung Kyung Kim, Chul Sik Yoon
  • Publication number: 20140129760
    Abstract: A nonvolatile memory system includes a memory controller for copying a mapping data group including logical-physical address mapping information regarding user data from a nonvolatile memory to a mapping information storage unit, and transmit size information regarding the mapping data group to a host. The host may receive size information regarding the mapping data group from the nonvolatile memory system, and determine the order of commands to be transmitted to the nonvolatile memory based on the size information regarding the mapping data group.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 8, 2014
  • Publication number: 20140009642
    Abstract: An apparatus and a method of successively capturing high quality image data at high speed are provided. The image input apparatus includes an image sensor for capturing image data from a subject; an image signal processor encoding the image data transmitted from the image sensor to produce digital image data; and a memory for storing the digital image data. The image signal processor decodes the digital image data according to an operating signal from a user and provides the user with the decoded digital image data. Therefore, the high quality image data can be obtained at high speed, and the lifespan of an external memory can be increased.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 9, 2014
    Inventor: Young-hoon JEONG
  • Patent number: 8620233
    Abstract: A method of power amplifier predistortion that makes use of a compression detector circuit in a feedback loop in order to adapt the channel gain for changing transmitter behavior. By monitoring the compression behavior of the amplifier, the signal is scaled to compensate for gain and compression point variations in the power amplifier and transmitter, while keeping a predistortion correction function constant.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: December 31, 2013
    Assignee: Samsung Electroncs Co., Ltd.
    Inventor: Michael Lee Brobston
  • Publication number: 20130303185
    Abstract: A method of obtaining a location of a user includes obtaining first location information of the user; searching a pre-stored first map for a plurality of candidate areas corresponding to the first location information; selecting at least one search area from the plurality of candidate areas corresponding to the first location information based on second location information of the user; and determining the location of the user using at least one search area.
    Type: Application
    Filed: March 18, 2013
    Publication date: November 14, 2013
    Applicant: Samsung Electroncs Co., Ltd.
    Inventors: Yong Kim, Eung Sun Kim
  • Publication number: 20120134312
    Abstract: Scanning cycle synchronization of a multicast service in a broadband wireless access system is provided. Multicast group information of a multicast group to which a Mobile Station (MS) belongs is received at the MS from an application server. A scanning cycle pattern and a scan offset of a multicast service corresponding to the multicast group are determined. A scanning cycle of the multicast is set according to the scanning cycle pattern and the scan offset. Scanning and reception of multicast data are performed according to the scanning cycle.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 31, 2012
    Applicant: Samsung Electroncs Co., Ltd.
    Inventors: Gyou-Hwan KIM, Han-Seok Kim, Mi-Ae Wi, Jun-Hwan Oh, Sung-Kwan Kim
  • Publication number: 20120098836
    Abstract: A method turns pages in an electronic book (e-book) reader. The method includes displaying an e-book as left/right pages and, if a page turn signal is generated, turning a left page or a right page while displaying an action of turning a left page to the right or a right page to the left as if turning pages of a paper book.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 26, 2012
    Inventors: Cheon-Shik Kim, Ki-Hwan Kwon, Sang-Hoon Song, Jun-Haeng Lee, Dong-Eun Lee
  • Publication number: 20110293099
    Abstract: An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.
    Type: Application
    Filed: August 3, 2011
    Publication date: December 1, 2011
    Inventors: Junghee Kim, Mino Lei, Eunmi Oh
  • Publication number: 20090186246
    Abstract: Disclosed herein are a fuel cell and a method for controlling the fuel cell. The fuel cell includes a reforming apparatus to perform reformation reactions and thereby to produce a fuel gas and a heat by-product, a stack to receive the fuel gas from the reforming apparatus and thereby to generate energy, a preheating unit to heat the stack and thereby to promote the operation of the stack, and an operation control unit to supply at least one of the fuel gas and heat by-product to the preheating unit during an initial operation of the reforming apparatus, and to supply the fuel gas to the stack upon the completion of the initial operation of the reforming apparatus. According to the fuel cell, it is possible to rapidly elevate an internal temperature of the fuel cell in an economical manner until the fuel cell initially operation and then enables normal operation.
    Type: Application
    Filed: July 23, 2008
    Publication date: July 23, 2009
    Inventors: Jin S. Heo, Hyun Chul Lee
  • Patent number: 7551491
    Abstract: Unit cells of a non-volatile memory device and a method thereof are provided. In an example, the unit cell may include a first memory transistor and a second memory transistor connected to each other in series and further connected in common to a word line, the first and second memory transistors including first and second storage nodes, respectively, the first and second storage nodes configured to execute concurrent memory operations.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 23, 2009
    Assignee: Samsung Electroncs Co., Ltd
    Inventors: Won-joo Kim, Suk-pil Kim, Jae-woong Hyun, Yoon-dong Park, June-mo Koo
  • Publication number: 20090114999
    Abstract: According to some embodiments of the invention, transistors of a semiconductor device have a channel region in a channel-portion hole. Methods include forming embodiments of the transistor having a channel-portion hole disposed in a semiconductor substrate. A channel-portion trench pad and a channel-portion layer are sequentially formed at a lower portion of the channel-portion hole. A word line insulating layer pattern and a word line pattern are sequentially stacked on the channel-portion layer and fill the channel-portion hole, disposed on the semiconductor substrate. The channel-portion layer is formed to contact the semiconductor substrate through a portion of sidewall of the channel-portion hole, and forms a channel region under the word line pattern. Punchthrough is prevented between electrode impurity regions corresponding to source and drain regions.
    Type: Application
    Filed: January 8, 2009
    Publication date: May 7, 2009
    Applicant: Samsung Electroncs Co., Ltd.
    Inventors: Hyeoung-Won SEO, Du-Heon SONG, Sang-Hyun LEE
  • Publication number: 20090061811
    Abstract: A frequency synthesizing apparatus and method for a multi-band radio frequency (RF) receiver is provided. The frequency synthesizing apparatus includes a simple circuit configuration with a single SSB mixer and thus, may synthesize six high frequency signals. Signals to be inputted into the SSB mixer include a first signal and a second signal. The first signal is generated based on a VCO and a PPF. Also, the second signal is selected from a plurality of frequency divided signals which are generated by dividing a signal generated in the VCO via a plurality of dividers.
    Type: Application
    Filed: October 31, 2008
    Publication date: March 5, 2009
    Inventors: Eun Chul Park, Hyun Soo Chae, Hoon Tae Kim
  • Publication number: 20090059078
    Abstract: A system and method for improving the saturation of a red-green-blue-white (RGBW) image signal, the system including: an image signal classification unit to classify a frame of an image signal into an image classification unit using an image classification parameter based on a luminance and a saturation of the frame; a backlight luminance controller to increase a backlight luminance with respect to the frame if the image classification unit thereof is a saturation improvement target; and a W sub-pixel controller to decrease a luminance of a W sub-pixel of the frame according to an amount of increase in the backlight luminance.
    Type: Application
    Filed: February 11, 2008
    Publication date: March 5, 2009
    Applicant: Samsung Electroncs Co., Ltd.
    Inventors: Yun-Tae Kim, Du-Sik Park, Ju Yong Park
  • Publication number: 20080198125
    Abstract: A circuit board includes; a reference common voltage generating circuit receiving an input voltage from an input node and outputting a reference common voltage to an output node, wherein the reference common voltage generating circuit includes a voltage distribution unit including a first resistor connected between the input node and the output node and a second resistor connected between the output node and a ground, and a sink current generating unit outputting a sink current to the output node, wherein the sink current is adjusted according to a resistance of a setting resistor, and a coupling line coupling the setting resistor and the reference common voltage generating circuit.
    Type: Application
    Filed: September 18, 2007
    Publication date: August 21, 2008
    Inventors: Joo-hwan Park, Chung-hyuk Shin, Seung-hoon Jung
  • Patent number: D647891
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: November 1, 2011
    Assignee: Samsung Electroncs Co., Ltd.
    Inventor: Hyun-Keun Son
  • Patent number: D757046
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 24, 2016
    Inventor: Seungju Yuk
  • Patent number: D758410
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 7, 2016
    Assignee: Samsung Electroncs Co., Ltd.
    Inventors: Suk-Young Woo, Min-Sun Lee, Ju-Eun Lee, Han-Chul Jung