Patents by Inventor Jun-Kyu Kang

Jun-Kyu Kang 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: 20190340952
    Abstract: Disclosed is a system for learning programming capable of easily coding a game and learning a coding method, wherein the system includes a web platform including a plurality of game contents, a smart arcade coding box configured to access the web platform and manipulate a game, and a display configured to display an execution screen of the game in connection with the smart arcade coding box, wherein, when a user selects and executes at least one of a plurality of games stored in the web platform using the smart arcade coding box, a programming coding substance of a motion of a character in the game corresponding to a manipulation of the smart arcade coding box is displayed on the display in real time.
    Type: Application
    Filed: October 31, 2018
    Publication date: November 7, 2019
    Applicant: INFITECH CO., LTD.
    Inventor: Jun Kyu KANG
  • Patent number: 10033853
    Abstract: A method is provided including: detecting an activation of an electronic device; detecting a current location of the electronic device; detecting whether the activation is prohibited at the current location of the electronic device; and shutting down the electronic device when the activation is prohibited.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: July 24, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Yoo Ahn, Tae-Keun Oh, Jun-Kyu Kang, Su-Jin Kim
  • Publication number: 20150063338
    Abstract: A method is provided including: detecting an activation of an electronic device; detecting a current location of the electronic device; detecting whether the activation is prohibited at the current location of the electronic device; and shutting down the electronic device when the activation is prohibited.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Byung-Yoo AHN, Tae-Keun OH, Jun-Kyu KANG, Su-Jin KIM
  • Patent number: 8493954
    Abstract: A method and an apparatus for reducing Digital-to-Analog Conversion (DAC) bits at a transmitter of a Frequency Division Multiple Access (FDMA) system reduces a number of the bits for conversion so as to save power and reduce the cost of operation. The method can include generating a digital signal gain control value and an analog signal gain control value using subcarrier allocation information, a required Signal to Noise Ratio (SNR), and a Peak to Average Power Ratio (PAPR); controlling a gain of a signal input to a digital-to-analog converter using the digital signal gain control value; converting a digital signal of the controlled gain to an analog signal using the digital-to-analog converter; and restoring an original signal by controlling a gain of a signal output from the digital-to-analog converter using the analog signal gain control value.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Kyu Kang, In-Tae Kang, Jeong-Gil Lee, Bo-Rham Lee, Sang-Min Bae
  • Patent number: 8351550
    Abstract: A correlation apparatus and method for frequency synchronization are provided. A frequency synchronization method of a receiver in a broadband wireless access communication system includes acquiring a highest correlation value by conducting a differential correlation of a variable interval between a received signal and a reference signal and performing a frequency synchronization according to the highest correlation value.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: January 8, 2013
    Assignees: Samsung Electronics Co., Ltd., Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Hee-Jin Roh, Jeoung-Gil Lee, Su-Jin Yoon, Hoon Kang, Chang-Hyun Baik, Jun-Kyu Kang, Hyung-Jin Choi, Se-Bin Im, Dae-Hong Lee
  • Patent number: 8046398
    Abstract: A method for modulating a symbol in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) system. The symbol modulation method includes multiplying an input stream of an Inverse Fast Fourier Transform (IFFT) unit by a Twiddling factor for circular-shifting the input stream of the IFFT unit by a Cyclic Prefix (CP) length; performing IFFT on the input stream of the IFFT unit, which is multiplied by the Twiddling factor; buffering data corresponding to the CP length beginning from a front of an output stream of the IFFT unit; and generating an OFDM symbol by forward-copying the buffered data to a back of the output stream of the IFFT unit.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Kyu Kang, Young-Ik Cho, Hun-Kee Kim
  • Publication number: 20100302170
    Abstract: A method of operating an input mode of a mobile terminal having a first input means and a second input means is provided. The method includes: displaying an input screen which is set as a first input mode; determining whether the second input means is in an activated state; and displaying a changed input screen which is set as a second input mode when the second input means is determined to be in an activated state.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 2, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Kyu KANG, Sang Yoon LEE, Ji Won CHOI, Dong Seong SEO
  • Patent number: 7746940
    Abstract: A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hae-Dong Yeon, Young-Hak Kim, Jae-Hwan Chang, Jae-Yong Lee, Min-Cheol Park, Ji-Yun Seol, Tae-Gon Kim, Jun-Kyu Kang, In-Hyoung Kim, Yun-Sang Park, Bong-Gee Song
  • Publication number: 20090196383
    Abstract: A correlation apparatus and method for frequency synchronization are provided. A frequency synchronization method of a receiver in a broadband wireless access communication system includes acquiring a highest correlation value by conducting a differential correlation of a variable interval between a received signal and a reference signal and performing a frequency synchronization according to the highest correlation value.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Applicants: SAMSUNG ELECTRONICS CO. LTD., SUNGKYUNKWAN UNIVERSITY Foundation for Corporate Collaboration
    Inventors: Hee-Jin ROH, Jeoung-Gil LEE, Su-Jin YOON, Hoon KANG, Chang-Hyun BAIK, Jun-Kyu KANG, Hyung-Jin CHOI, Se-Bin IM, Dae-Hong LEE
  • Publication number: 20090154442
    Abstract: A method and an apparatus for reducing Digital-to-Analog Conversion (DAC) bits at a transmitter of a Frequency Division Multiple Access (FDMA) system reduces a number of the bits for conversion so as to save power and reduce the cost of operation. The method can include generating a digital signal gain control value and an analog signal gain control value using subcarrier allocation information, a required Signal to Noise Ratio (SNR), and a Peak to Average Power Ratio (PAPR); controlling a gain of a signal input to a digital-to-analog converter using the digital signal gain control value; converting a digital signal of the controlled gain to an analog signal using the digital-to-analog converter; and restoring an original signal by controlling a gain of a signal output from the digital-to-analog converter using the analog signal gain control value.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 18, 2009
    Inventors: Jun-Kyu KANG, In-Tae Kang, Jeong-Gil Lee, Bo-Rham Lee, Sang-Min Bae
  • Publication number: 20090083514
    Abstract: A method and apparatus for block interleaving that eliminates the step of intermediary buffering. The method includes: (a) calculating a memory address at which first output data, of which number is equal to the number of rows of a first encoder is stored, (b) storing the first output data at the calculated memory address of a circular buffer, (c) storing second output data at an address which is incremented by a specific constant value from the calculated memory address of the circular buffer, and (d) storing (n+1)th output data at an address which is incremented by n from the calculated memory address of the circular buffer.
    Type: Application
    Filed: September 22, 2008
    Publication date: March 26, 2009
    Inventors: Bo-Rham LEE, Jong-Hun Rhee, Min-Goo Kim, In-Tae Kang, Jun-Kyu Kang
  • Publication number: 20080165676
    Abstract: A method for modulating a symbol in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) system. The symbol modulation method includes multiplying an input stream of an Inverse Fast Fourier Transform (IFFT) unit by a Twiddling factor for circular-shifting the input stream of the IFFT unit by a Cyclic Prefix (CP) length; performing IFFT on the input stream of the IFFT unit, which is multiplied by the Twiddling factor; buffering data corresponding to the CP length beginning from a front of an output stream of the IFFT unit; and generating an OFDM symbol by forward-copying the buffered data to a back of the output stream of the IFFT unit.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Kyu KANG, Young-Ik Cho, Hun-Kee Kim
  • Publication number: 20070009056
    Abstract: A method and apparatus for processing time windowing to transmit a signal in a Broadband Wireless Access (BWA) communication system based on Orthogonal Frequency Division Multiple Access (OFDMA). A signal of a first interval included in a previous symbol prior to a current symbol is stored as a signal of a previous symbol interval. The current symbol includes a guard interval and an effective symbol interval subsequent to the guard interval. The current symbol is windowed by overlapping the stored signal of the first interval with a signal of a second interval included in the current symbol subsequent to the previous symbol. A windowed signal is transmitted.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 11, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hae-Dong Yeon, Young-Hak Kim, Jae-Hwan Chang, Jae-Yong Lee, Min-Cheol Park, Ji-Yun Seol, Tae-Gon Kim, Jun-Kyu Kang, In-Hyoung Kim, Yun-Sang Park, Bong-Gee Song
  • Patent number: 6885346
    Abstract: There is provided a built-in single band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna single band antenna device, a built-in single band antenna is formed into a conductive pattern on a board extended from the upper side of a main PCB. A whip antenna is connected to the built-in single band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in single band antenna from an RF signal to be transmitted to the built-in single band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 26, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-In Ha, Wan-Jin Choi, Dong-Hwan Kim, Jun-Kyu Kang
  • Patent number: 6662021
    Abstract: A mobile communication system has a multi-band antenna capable of receiving and processing signals of GPS, CDMA, and PCS bands. In the system, a GPS processing section receives a signal of a first frequency band, so as to generate global positioning information. A communication signal processing section receives signals of a second frequency band lower than the first frequency band and a third frequency band higher than the first frequency band, demodulates the received signals , while modulating signals to be transmitted of the second frequency band and the third frequency band and outputting the modulated signals. The multi-band antenna has a dual-pitch helical antenna which includes first and second helical coil portions having different pitches, so that the first and second helical coil portions have different impedances for the signals of the first to third frequency bands.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: December 9, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Kyu Kang, Dong-In Ha, Wan-Jin Choi, Jung-Ho Park, Dong-Hwan Kim
  • Publication number: 20030153279
    Abstract: A mobile communication system has a multi-band antenna capable of receiving and processing signals of GPS, CDMA, and PCS bands. In the system, a GPS processing section receives a signal of a first frequency band, so as to generate global positioning information. A communication signal processing section receives signals of a second frequency band lower than the first frequency band and a third frequency band higher than the first frequency band, demodulates the received signals, while modulating signals to be transmitted of the second frequency band and the third frequency band and outputting the modulated signals. A multi-band antenna receives and transmits signals of multiple frequency bands including the first to third frequency bands. The multi-band antenna has a dual-pitch helical antenna which includes first and second helical coil portions having different pitches, so that the first and second helical coil portions have different impedances for the signals of the first to third frequency bands.
    Type: Application
    Filed: October 15, 2002
    Publication date: August 14, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Kyu Kang, Dong-In Ha, Wan-Jin Choi, Jung-Ho Park, Dong-Hwan Kim
  • Patent number: 6593899
    Abstract: There is provided a helical antenna structure, which exhibits minimal influence from contact with a human body in a mobile terminal. In the helical antenna structure, a cap protrudes from an upper end of the mobile terminal, and a winding coil is formed within the cap, which is spaced from an outer surface of the cap substantially the same distance from a bottom part of the cap to a top part of the cap.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: July 15, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-In Ha, Wan-Jin Choi, Dong-Hwan Kim, Jun-Kyu Kang
  • Patent number: 6452556
    Abstract: Disclosed are a built-in dual band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna dual band antenna device, a built-in dual band antenna has a first conductive antenna pattern formed on a board extended from the upper side of a main PCB and a second conductive antenna pattern on a board extended at a right angle from the upper side of the main PCB. A whip antenna is connected to the built-in dual band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in dual band antenna from an RF signal to be transmitted to the built-in dual band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: September 17, 2002
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Dong-In Ha, Wan-Jin Choi, Dong-Hwan Kim, Jun-Kyu Kang
  • Publication number: 20020047813
    Abstract: There is provided a helical antenna structure, which exhibits minimal influence from contact with a human body in a mobile terminal. In the helical antenna structure, a cap protrudes from an upper end of the mobile terminal, and a winding coil is formed within the cap, which is spaced from an outer surface of the cap substantially the same distance from a bottom part of the cap to a top part of the cap.
    Type: Application
    Filed: September 6, 2001
    Publication date: April 25, 2002
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-In Ha, Wan-Jin Choi, Dong-Hwan Kim, Jun-Kyu Kang
  • Publication number: 20020033775
    Abstract: There is provided a built-in single band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna single band antenna device, a built-in single band antenna is formed into a conductive pattern on a board extended from the upper side of a main PCB. A whip antenna is connected to the built-in single band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in single band antenna from an RF signal to be transmitted to the built-in single band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 21, 2002
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-In Ha, Wan-Jin Choi, Dong-Hwan Kim, Jun-Kyu Kang