Patents by Inventor Tae Jin

Tae Jin 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: 7990784
    Abstract: A semiconductor memory device having a clock signal generating circuit which is capable of controlling a data output in compliance with PVT fluctuation by controlling a output timing of rising and falling clock signal based on a fuse cutting is described. The clock signal generating circuit includes a fuse unit for generating first and second fuse signals based on fuse cutting of fuses, a control signal generating unit for generating first and second fuse signals in response to the fuse signals, a clock signal delaying unit for generating a delayed clock signal by delaying the external clock signal by a delay section specified by the control signals, and a clock generating unit for generating a first internal clock signal in synchronization with a rising edge of the delayed clock signal and for generating a second internal clock signal in synchronization with a falling edge of the delayed clock signal.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: August 2, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tae Jin Kang
  • Patent number: 7990785
    Abstract: A semiconductor memory device includes a delay locked loop circuit that can control input/output timing of data according to a system clock of a high frequency. The semiconductor memory device includes a phase comparator configured to detect a phase difference between an internal clock and a reference clock to output a state signal having a pulse width corresponding to the detected phase difference, a phase adjuster configured to generate a digital code for determining a delay time corresponding to the state signal for locking a phase of the internal clock, a digital-to-analog converter configured to convert the digital code to an analog voltage, and a multiphase delay signal generator configured to delay the internal clock according to a bias voltage corresponding to the analog voltage to feed back the delayed internal clock as the internal clock and generate multiphase delay signals.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: August 2, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hee-Woong Song, Kun-Woo Park, Yong-Ju Kim, Ic-Su Oh, Hyung-Soo Kim, Tae-Jin Hwang, Hae-Rang Choi, Ji-Wang Lee
  • Patent number: 7986879
    Abstract: Disclosed is a system and a method for polling in an Ethernet Passive Optical Network (EPON). The system includes: multiple Optical Network Units (ONUs) for sharing optical channels of the EPON with one another and transmitting traffic; and an Optical Line Terminal (OLT) for discriminating a plurality of ONUs gaining access to the EPON among the multiple ONUs and then collecting routing information on the plurality of ONUs gaining access to the EPON, and for classifying the plurality of ONUs gaining access to the EPON into two or more ONU groups according to the collected routing information and then carrying out forming a polling cycle and allocating bandwidth on each ONU group. Therefore, a transmission idle period in a traffic channel is not only minimized, but an availability ratio of traffic channels can also be maximized.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: July 26, 2011
    Assignee: Sungkyunkwan University Foundation For Corporate Collaboration
    Inventors: Sang Ho Lee, Min Young Chung, Tae-Jin Lee, Hyun Seung Choo
  • Publication number: 20110171015
    Abstract: Provided is a centrifugal compressor. In the centrifugal compressor, a plurality of sub-compressors each of which includes an impeller are connected in parallel to increase a compression capacity, the plurality of sub-compressors are each assembled to a single common shaft that is rotated by a driving unit, and the impellers of the plurality of sub-compressors are disposed in opposing directions. The centrifugal compressor reduces a production cost, and cancels thrusts during driving so as to reduce a loss of a bearing, thereby increasing efficiency of the compressor.
    Type: Application
    Filed: December 14, 2010
    Publication date: July 14, 2011
    Inventor: Tae Jin KANG
  • Publication number: 20110168301
    Abstract: The present invention relates to a hot dip galvanized steel sheet and a manufacturing method thereof. The hot dip galvanize steel sheet includes a steel sheet including a martensitic structure as a matrix, and a hot dip galvanized layer formed on the steel sheet. The steel sheet includes C of 0.05 wt % to 0.30 wt %, Mn of 0.5 wt % to 3.5 wt %, Si of 0.1 wt % to 0.8 wt %, Al of 0.01 wt % to 1.5 wt %, Cr of 0.01 wt % to 1.5 wt %, Mo of 0.01 wt % to 1.5 wt %, Ti of 0.001 wt % to 0.10 wt %, N of 5 ppm to 120 ppm, B of 3 ppm to 80 ppm, an impurity, and the remainder of Fe.
    Type: Application
    Filed: September 23, 2009
    Publication date: July 14, 2011
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Tae-Jin Song, Han-Soo Kim, Jai-Hyun Kwak, Bruno C. De Cooman
  • Publication number: 20110166681
    Abstract: Provided is a system and method for transmitting/receiving an object-based audio. The system includes: a pre-processing unit for receiving an audio signal from diverse sources of outside and creating an object-based audio signal through a pre-processing procedure; an object-based audio editing unit for editing the object-based audio signal from the pre-processing unit and organizing an audio scene; an object-based audio coding unit for coding/multiplexing information on the object-based audio signal and the audio scene from the object-based audio editing unit and creating object-based audio contents; and a transmitting unit for transmitting the object-based audio contents from the object-based audio coding unit.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Tae-Jin LEE, Jae-Hyoun YOO, In-Seon JANG, Yong-Ju LEE, Jeong-Il SEO, Dae-Young JANG, Kyeong-Ok KANG, Jin-Woo HONG
  • Patent number: 7974250
    Abstract: A power saving apparatus and a method in a wireless communication system are provided. An Access Point (AP) buffers transmission frames for sleep-mode stations in a sleep-mode buffer. Upon wakeup from a sleep mode, a station sends a first control information frame indicating wakeup to the access point. The access point sends a second control information frame including a requested transmission length in response to the first control information frame to the station. The station generates a third control information frame, aggregates the third control information frame and user data frames to a first protocol data unit, and sends it to the AP. Then the AP generates a fourth control information frame, aggregates the fourth control information frame and buffered frames to a second protocol data unit, and sends it to the station.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kyung-Hun Jang, Young-Soo Kim, Jung-Hoon Suh, Dong-Jun Lee, Jong-Ho Park, Tae-Jin Lee
  • Publication number: 20110158032
    Abstract: A clock control circuit is presented for reducing unnecessary current consumption. The clock control circuit includes a write enable signal generation unit and a clock enable signal generation unit. The write enable signal generation unit is configured to generate a first write enable signal, which is enabled during a predetermined time period after a write command is inputted, in response to first and second burst signals and a write signal including a pulse generated in response to the write command. The clock enable signal generation unit is configured to generate a clock enable signal, which is enabled during a write operation period, in response to the first write signal and the first write enable signal.
    Type: Application
    Filed: June 28, 2010
    Publication date: June 30, 2011
    Applicant: Hynix Semiconductor Inc.
    Inventor: Tae Jin KANG
  • Publication number: 20110160886
    Abstract: A method of creating a file according to a freeview audio/video (AV) service, the method including: creating a file header that includes content related information, AV object related information, preset related information, or preset information associated with at least one preset; creating audio object information associated with at least one audio object; creating video object information associated with at least one video object; and processing the file header, the audio object information, and the video object information into a preset format of a single freeview AV file to store the processed preset format of the freeview AV file is provided.
    Type: Application
    Filed: October 7, 2008
    Publication date: June 30, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Tae Jin Lee, Jae-Hyoun Yoo, Kyeongok Kang, Jin Woo Hong
  • Publication number: 20110156772
    Abstract: An interface apparatus for a semiconductor integrated circuit and an interfacing method thereof controls the VOX of differential signals to a target level in response to the differential signals being outputted by an output block. The interface apparatus for a semiconductor integrated circuit includes an output block configured to output differential signals output by an internal circuit a detector configured to detect a timing error of the differential signals; and a controller configured to control a timing of the differential signals output by the internal circuit according to a detection result of the detector.
    Type: Application
    Filed: December 30, 2009
    Publication date: June 30, 2011
    Inventors: Ji-Wang LEE, Yong-Ju Kim, Hee-Woong Song, Ic-Su Oh, Hyung-Soo Kim, Tae-Jin Wang, Hae-Rang Choi, Jae-Min Jang, Chang-Kun Park
  • Patent number: 7969214
    Abstract: A delay locked loop (DLL) circuit includes a phase detection unit configured to generate a phase detection signal by comparing a phase of a reference clock signal with a phase of a feedback clock signal. An update control apparatus is configured to generate a valid interval signal and an update control signal by determining a difference between the number of first logical values and the number of second logical values of the phase detection signal in response to the reference clock signal. A shift register configured to update a delay value granted to a delay line in response to the update control signal when the valid interval signal is enabled.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: June 28, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae Min Jang, Yong Ju Kim, Sung Woo Han, Hee Woong Song, Ic Su Oh, Hyung Soo Kim, Tae Jin Hwang, Hae Rang Choi, Ji Wang Lee, Chang Kun Park
  • Publication number: 20110154492
    Abstract: The present invention relates to a malicious traffic isolation system and method using botnet information, and more particularly, to a malicious traffic isolation system and method using botnet information, in which traffics for a set of clients having the same destination are routed to the isolation system based on a destination IP/Port, and botnet traffics are isolated using botnet information based on similarity among groups of the routed and flowed in traffics. The present invention may provide a malicious traffic isolation method using botnet information, which can accommodate traffics received from a PC or a C&C server infected with a bot into a quarantine area, isolate traffics generated by normal users from traffics transmitted from malicious bots, and block the malicious traffics. In addition, the present invention may provide a malicious traffic isolation method using botnet information, which can provide a function of mitigating DDoS attacks of a botnet.
    Type: Application
    Filed: June 23, 2010
    Publication date: June 23, 2011
    Inventors: Hyun Cheol Jeong, Chae Tae Im, Seung Goo Ji, Joo Hyung Oh, Dong Wan Kang, Tae Jin Lee, Yong Geun Won
  • Publication number: 20110149154
    Abstract: A digital cable broadcast receiver and a method for automatically processing caption data of various standards and types, is disclosed. The digital broadcast receiver includes: a demultiplexer for dividing a received broadcast stream into video data, audio data, supplementary information; a controller for determining whether caption data included in the video data is digital caption data or analog caption data on the basis of caption information included in the supplementary information, and outputting a control signal according to a result of the determining; a digital caption decoder for extracting and decoding digital caption data from the video data according to the control signal; and an analog caption decoder for extracting and decoding analog caption data from the video data according to the control signal.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 23, 2011
    Inventor: Tae Jin PARK
  • Publication number: 20110153811
    Abstract: The invention relates to a system and method that can detect botnets by classifying the communication activities for each client according to destination or based on similarity between the groups of collected traffic. According to certain aspects of the invention, the communication activities for each client can be classified to model network activity by differentiating the protocols of the collected network traffic based on destination and patterning the subgroups for the respective protocols. Those servers that are estimated to be C&C servers can be classified into download and upload, spam servers and command control servers, within a botnet group detected by modeling network activity, i.e. analyzing network-based activity patterns. Also, botnet groups can be detected by way of a group information management function, for generating an activity pattern-based group matrix based on group data, and a mutual similarity analysis, performed on groups suspected to be botnets from the group information.
    Type: Application
    Filed: June 23, 2010
    Publication date: June 23, 2011
    Inventors: Hyun Cheol Jeong, Chae Tae IM, Seung Gao Ji, Joo Hyung Oh, Dong Wan Kang, Tae Jin Lee, Yong Geun Won
  • Patent number: 7965792
    Abstract: Provided is a modulation-index adjustable amplitude shift keying (ASK) transmitter including: a bias current supply unit supplying one or more bias currents in response to a digital signal that is to be transmitted and one or more bias current control signals; and a modulation signal generator generating a modulation signal corresponding to the digital signal by modulating a carrier signal in response to the one or more bias currents.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: June 21, 2011
    Assignee: FCI, Inc.
    Inventors: Tae Jin Kim, Kyoo Hyun Lim
  • Publication number: 20110137663
    Abstract: An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a hetero coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the hetero coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded.
    Type: Application
    Filed: September 18, 2009
    Publication date: June 9, 2011
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Seung Kwon Beack, Tae Jin Lee, Min Je Kim, Dae Young Jang, Kyeongok Kang, Jin Woo Hong, Ho Chong Park, Young-cheol Park
  • Publication number: 20110128049
    Abstract: A write driving device includes a buffer unit, a duration signal generation unit, and a data input clock pulse generation unit. The buffer unit is configured to generate an alignment signal in response to a transition timing of a data strobe signal. The duration signal generation unit is configured to generate a duration signal which is enabled during a predetermined duration in response to a write command. The data input clock pulse generation unit is configured to generate a data input clock pulse for transferring data to a global line in response to the alignment signal within an enable duration of the duration signal.
    Type: Application
    Filed: November 4, 2010
    Publication date: June 2, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Tae Jin KANG
  • Patent number: 7952394
    Abstract: A signal receiver circuit includes a first level detector for offset-controlling a first output node in response to a pair of first reference signals. A second level detector offset-controls a second output node in response to a pair of second reference signals.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: May 31, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hee Woong Song, Kun Woo Park, Yong Ju Kim, Jong Woon Kim, Ic Su Oh, Hyung Soo Kim, Tae Jin Hwang
  • Patent number: 7952957
    Abstract: A circuit for generating a read end signal includes a clock transferring unit which receives a clock signal, a write/read status signal and an all bank precharge signal and outputs a delayed clock signal, a read signal detecting unit which receives a read pulse signal and the delayed clock signal and generates a read detection signal having a pulse width corresponding to a certain clock, and a read end signal generating unit which receives a first signal, the delayed clock signal and the read detection signal and generates a read end signal.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 31, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tae Jin Kang
  • Patent number: 7952364
    Abstract: A power noise detecting device includes a plurality of power lines, and a power noise detecting part configured to detect power noise by rectifying voltages of the plurality of power lines and converting the rectified voltages into effective voltages.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: May 31, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hyung-Soo Kim, Yong-Ju Kim, Sung-Woo Han, Hee-Woong Song, Ic-Su Oh, Tae-Jin Hwang, Hae-Rang Choi, Ji-Wang Lee, Jae-Min Jang, Chang-Kun Park