Patents by Inventor Tae-In Kang

Tae-In 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).

  • LED ILLUMINATION APPARATUS
    Publication number: 20130314918
    Abstract: An LED illumination apparatus according to an exemplary embodiment of the present invention includes a substrate, a light source disposed on the substrate, a cover unit, wherein the cover unit is configured to cover the light source, which is disposed on the substrate, and a reflector which is configured to extend from the cover unit inside to the upper substrate, whereby a light generated by the light source illuminates an area below a bottom side of the substrate.
    Type: Application
    Filed: June 19, 2013
    Publication date: November 28, 2013
    Inventor: Ki Tae KANG
  • Packet decoding method and apparatus for digital broadcast system
    Patent number: 8570878
    Abstract: A packet decoding method and apparatus of a digital broadcast system is provided for improving decoding performance by reordering blocks to be decoded and adjusting a number of decoding iterations of each block. A packet decoding method of the present invention includes measuring Signal-to-Noise Ratios (SNRs) of individual packets within a slot, determining a decoding order of the packets according to the SNRs, and decoding the packets in the decoding order. The decoding method and apparatus of a digital broadcast system according to the present invention performs decoding on the packets having the highest channel estimation performance first with reduced number of decoding iterations and reallocates the saved number of decoding iterations to remaining packets having relatively low channel estimation performance, thereby improving the decoding performance of the received packets.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: October 29, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Min Kim, Seo Goo Lee, Jin Woo Roh, Byung Tae Kang
  • CURRENT CONTROLLING DEVICE AND ELECTRIC FIELD EMISSION SYSTEM INCLUDING THE SAME
    Publication number: 20130271037
    Abstract: Provided is a current controlling device for controlling an electric field emission current in connection with an electric field emission device which emits electrons in response to an applied voltage, the device including: a first current controlling transistor forming a current path in response to a first gate voltage; a second current controlling transistor connected between the field emission device and the first current controlling transistor and forming a current path in response to a second gate voltage; and a control logic controlling the first and second gate voltages, wherein the control logic controls a upper limit of the field emission current by using the first gate voltage.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 17, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo JEONG, Yoon-Ho SONG, Jun Tae KANG, Jae-woo KIM, Sungyoul CHOI
  • Method and apparatus for reducing peak to average power ratio using peak windowing
    Patent number: 8548092
    Abstract: A method and apparatus for reducing a Peak to Average Power Ratio (PAPR) using peak windowing is provided. In the apparatus, an absolute value calculator calculates an absolute value of an input signal, a subtractor subtracts a predetermined clipping threshold level from the absolute value, a smoothing unit performs smoothing on the subtracted signal according to a predetermined smoothing scheme and outputs a first smoothed signal, an adder adds the first smoothed signal to the clipping threshold level, an inverse calculator outputs a second smoothed signal by multiplying the clipping threshold level by an inverse of the added signal, and a multiplier outputs a final PAPR-reduced signal by multiplying the input signal by the second smoothed signal.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: October 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Tae Kang, Jung-Hwa Bae, Jung-Uk Woo, Shin-Ho Kim, Sang-Min Bae, Jong-Han Lim, Dong-Min Kim, Bo-Rham Lee
  • Apparatus and method for controlling current consumption in a multi modem system
    Patent number: 8539268
    Abstract: An apparatus and a method for controlling power consumption in a system having a plurality of modems are provided. In the method, whether an interrupt is generated in each modem is detected. An amount of current consumption of the system at a processing point of the generated interrupt is determined. The amount of current consumption of the system is compared with a threshold, so that the processing point of the generated interrupt is controlled.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Chun Lim, Byung-Tae Kang, Jin-Woo Roh
  • Rotary encoder and control method thereof
    Patent number: 8531183
    Abstract: The control method includes obtaining an assumed angle and an actual angle of each of the plurality of rotation angle detecting members, determining a first rotation angle detecting member, the assumed angle and the actual angle of which differ from each other, determining a second rotation angle detecting member having the actual angle closest to the assumed angle of the first rotation angle detecting member, resetting the given count value of the second rotation angle detecting member to a new count value of the first rotation angle detecting member, changing the actual angle of the first rotation angle detecting member via the new count value of the first rotation angle detecting member to reduce an angular error between the assumed angle and the actual angle of the first rotation angle detecting member.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: September 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu Tae Kang, Yeong Bae Yeo
  • Field emitter
    Patent number: 8531097
    Abstract: Disclosed is a field emitter, including: a cathode electrode in a shape of a tip; an emitter having a diameter smaller than a diameter of the cathode electrode and formed on the cathode electrode; and a gate electrode having a single hole and located above the emitter while maintaining a predetermined distance from the emitter.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: September 10, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Jeong, Jun Tae Kang, Yoon Ho Song, Jae Woo Kim
  • Field emission device
    Patent number: 8519627
    Abstract: Provided is a field emission device having a simple structure and capable of pulse driving and local dimming. The field emission device turns a current flowing from each cathode electrode block on or off in response to a switching control signal having a very low voltage ranging from 0 to 5 V while a constant voltage is applied to an anode electrode and a gate electrode to control a field emission current. Compared with a conventional field emission device, the field emission device having a simple structure is capable of pulse driving and local dimming without using a separate pulse driving high voltage power source.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: August 27, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Jeong, Yoon Ho Song, Dong Il Kim, Jun Tae Kang, Ji Seon Kim
  • Manufacturing method of toothbrush filaments using power toothbrush and toothbrush using thereof
    Patent number: 8512611
    Abstract: Provided is a tapered filament for a power toothbrush made of a synthetic resin and formed with tapers at two ends thereof and a non-tapered area for tufting part of which middle is tufted into a power toothbrush, wherein an overall length is 16 to 22 mm, a length of the non-tapered area for tufting part is 4 to 12 mm, and the rest parts except for the non-tapered area for tufting part form tapers at two ends.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: August 20, 2013
    Assignee: BBC Co., Ltd.
    Inventors: Yeon-Bok Kang, Ki-Tae Kang, Gui-Hwan Oh
  • Apparatus and method for transmitting/receiving signal in single carrier frequency division multiplexing access communication system
    Patent number: 8509079
    Abstract: A method and apparatus for transmitting a signal whereby it is determined if a Bandwidth Expansion Factor (BEF) Q is an integer, the BEF being determined as N/M according to a number N of subcarriers of a system band and a number M of subcarriers of an allocated band, an input signal to be transmitted Q times in a time domain when the Q is an integer is expanded, a Single Carrier Frequency Division Multiplexing Access (SC-FDMA) signal is generated, and the SC-FDMA signal is transmitted.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Tae Kang, Jung-Hwa Bae, Bo-Rham Lee, Sang-Min Bae, Jong-Han Lim
  • X-RAY CONTROL UNIT USING MONOCRYSTALLINE MATERIAL
    Publication number: 20130195254
    Abstract: An X-ray control unit using a monocrystalline material which controls only a specific wavelength of X-rays, by using the monocrystalline material as a filter. The X-ray control unit includes a light source configured to generate X-rays, an X-ray control filter formed of a monocrystalline material having grown in one direction and configured to filter the X-rays generated by the light source to reflect and transmit characteristic X-rays, and an adjustor configured to adjust the light source and the X-ray control filter to arbitrary angles. Since X-rays having a specific wavelength can be selectively used by using a filter, the X-rays can be easily controlled and their intensity can be easily regulated. A characteristic line of the X-rays can be controlled and their intensity can be regulated without directly controlling an X-ray source.
    Type: Application
    Filed: June 8, 2012
    Publication date: August 1, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sungyoul CHOI, Yoon Ho Song, Jin Woo Jeong, Jun Tae Kang, Jae-woo Kim
  • Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system
    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
  • CONTROL METHOD FOR SHIFTING IN MANUAL TRANSMISSION VEHICLE
    Publication number: 20130150213
    Abstract: A control method for shifting in a manual transmission vehicle may include sensing tip-out while the vehicle travels; operating a tip-out torque filter when the tip-out is sensed; determining whether a switch of a clutch of the vehicle is turned on; stopping fuel injection by stopping the tip-out torque filter when the switch of the clutch is turned on, and reducing rotation speed of an engine by controlling a throttle flap of the vehicle.
    Type: Application
    Filed: August 22, 2012
    Publication date: June 13, 2013
    Applicant: Hyundai Motor Company
    Inventors: Chang Kook Chae, Heungseok Lee, Sukil Oh, Wan Soo Oh, Jin Hyun Kim, Koo Tae Kang
  • Apparatus and method for estimating a channel in a broadband wireless communication system
    Patent number: 8457253
    Abstract: Channel estimation in a broadband wireless communication system is provided. A receiver includes a frequency interpolator for interpolating in a frequency axis using at least one of channel estimation values estimated through pilot signals and channel estimation values generated using a time-axis interpolation, a determiner for determining a compensation coefficient to compensate for edge distortion using the channel estimation values estimated through the pilot signals, and a compensator for generating a completed channel estimation value by multiplying a channel estimation value generated by interpolating in the frequency axis, by the compensation coefficient.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: June 4, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kyung-Hyun Paik, Suk-Jin Jung, Byung-Tae Kang
  • VACUUM WINDOW WITH EMBEDDED INFORMATION DISPLAY
    Publication number: 20130063019
    Abstract: Disclosed are a semiconductor apparatus and a manufacturing method thereof. The manufacturing method of the semiconductor apparatus includes: forming a semiconductor chip on a semiconductor substrate; adhering a carrier wafer with a plurality of through holes onto the semiconductor chip; polishing the semiconductor substrate; forming a first via hole at the rear side of the polished semiconductor substrate; forming a first metal layer below the polished semiconductor substrate and at the first via hole; and removing the carrier wafer from the polished semiconductor substrate.
    Type: Application
    Filed: August 27, 2012
    Publication date: March 14, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo JEONG, Yoon Ho SONG, Sungyoul CHOI, Jun Tae KANG, Jae-Woo KIM
  • CONTROL METHOD OF DIESEL VEHICLE
    Publication number: 20130037001
    Abstract: An idle throttle valve control method of a diesel vehicle, may include a first step of determining whether an idle entry condition of the vehicle may be satisfied, a second step of controlling a throttle valve based on an air amount map and controlling an exhaust gas recirculation (EGR) valve based on an EGR map, when the first step may be satisfied, a third step of determining whether an idle release condition may be satisfied during the second step, and a fourth step of determining whether an EGR return condition may be satisfied, when the idle release condition may be satisfied in the third step.
    Type: Application
    Filed: December 8, 2011
    Publication date: February 14, 2013
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Heungseok Lee, Chang Kook Chae, Sukil Oh, Wan Soo Oh, Jin Hyun Kim, Koo Tae Kang, Kwang Min Won
  • ELECTRIC FIELD EMISSION X-RAY TUBE APPARATUS EQUIPPED WITH A BUILT-IN GETTER
    Publication number: 20130028386
    Abstract: The present disclosure relates to an electric field emission x-ray tube apparatus equipped with a built-in getter, and more particularly, to an electric field emission x-ray tube apparatus equipped with a built-in getter that makes it possible to reduce the size of an x-ray tube by forming a stacked structure, with electric insulation and predetermined gaps maintained for each electrode, by manufacturing an x-ray tube having a stacked structure by inserting insulating spacers (for example, ceramic) between an exhausting port, a cathode, a gate, a focusing electrode, and an anode and bonding them with an adhesive substance, and then inserting a spacer between a field emitter on a cathode substrate and a gate hole connected with a gate electrode.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo JEONG, Jun Tae Kang, Yoon Ho Song, Jae Woo Kim
  • STACKED X-RAY TUBE APPARATUS USING SPACER
    Publication number: 20130022173
    Abstract: The present disclosure relates to a stacked x-ray tube apparatus using a spacer, and more particularly, to a stacked x-ray tube apparatus using a spacer that makes it possible to reduce the size of an x-ray tube by forming a stacked structure, with electric insulation and predetermined gaps maintained for each electrode, by forming a stacked x-ray tube by inserting insulating spacers (for example, ceramic) between a exhausting port, a cathode, a gate, a focusing electrode, and an anode and bonding them with an adhesive substance, and then inserting a spacer between a field emitter on a cathode substrate and a gate hole connected with a gate electrode.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 24, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo JEONG, Jun Tae KANG, Yoon Ho SONG, Jae Woo KIM
  • Buffer circuit and duty cycle correction method using same
    Patent number: 8358162
    Abstract: A buffer circuit includes an amplifier circuit amplifying a difference between an input signal and a reference signal, providing a branch current that varies with a duty cycle of the input signal, and outputting a preliminary output signal on the basis of the amplified difference. The buffer circuit also includes a charge pump circuit charging/discharging a control node in response to the branch current to provide a control signal. The buffer circuit also includes a driver circuit configured to control pull-up strength and pull-down strength for the preliminary output signal based on control signal to thereby correct the duty cycle of the preliminary output signal in relation to a target duty cycle.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 22, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kyoung Tae Kang
  • Channel determination apparatus and method of broadcast reveiver
    Patent number: 8355684
    Abstract: A channel determination apparatus and method for a broadcast receiver are provided. The method includes estimating, when the broadcast receiver operates in a sleep state over a preset time period, inter-modulation distortion interference of a plurality of channels by scanning the channels, and receiving, when the sleep state is transitioned to an active state, broadcast data on a channel having the least inter-modulation distortion interference. Accordingly, the inter-modulation distortion interference of individual channels is taken into account to select an optimum channel, thereby resulting in improvement of channel determination accuracy.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: January 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Seok Yu, In Kwon Paik, Byung Tae Kang