Patents by Inventor Dal Ahn

Dal Ahn 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: 10768760
    Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: September 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung-rae Kim, Yoon-kyung Choi, Hwa-hyun Cho, Sang-woo Kim, Hae-yong Ahn, Hyung-dal Kwon, Jong-kang Park, San-ho Byun, Jae-suk Yu
  • Publication number: 20200228065
    Abstract: The present invention relates to a Doherty combiner used in a Doherty power amplifier, the Doherty combiner comprising: a phase shift section connected to one end of a carrier amplifier so as to change a phase of an RF signal output from the carrier amplifier; a matching section connected to an output terminal of the Doherty power amplifier so as to impedance-match an output of the Doherty power amplifier; and a bandwidth improvement section connected to one end of a peaking amplifier so as to change at least one of a phase bandwidth and an amplitude bandwidth of the Doherty power amplifier.
    Type: Application
    Filed: October 23, 2017
    Publication date: July 16, 2020
    Inventors: Dal AHN, Kwan-Sun CHOI, Jong-Sik LIM, Sang-Min HAN, Sung-Min KIM, You-Na JANG, Dae-Ung LEE, Jun-Seok OH, Seo KOO, Tae-Hoon KANG, Ji-Won KIM, Ik-Soo JANG
  • Patent number: 10649591
    Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: May 12, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung-rae Kim, Yoon-kyung Choi, Hwa-hyun Cho, Sang-woo Kim, Hae-yong Ahn, Hyung-dal Kwon, Jong-kang Park, San-ho Byun, Jae-suk Yu
  • Publication number: 20190179456
    Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 13, 2019
    Inventors: Hyoung-rae Kim, Yoon-kyung Choi, Hwa-hyun Cho, Sang-woo Kim, Hae-yong Ahn, Hyung-dal Kwon, Jong-kang Park, San-ho Byun, Jae-suk Yu
  • Publication number: 20180034127
    Abstract: A planar type magic tee includes a first coupling unit, a second coupling unit, and transmission lines for connecting the first coupling unit and the second coupling unit to each other in a cascading manner, the transmission lines having different characteristic impedances. The planar type magic tee is capable of solving the problem caused due to the intrinsic limitation in bandwidth of a conventional ring hybrid coupler.
    Type: Application
    Filed: December 31, 2015
    Publication date: February 1, 2018
    Applicant: SOONCHUNHYANG UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Dal AHN, HanJu DO, Heehwang KIM, YouNa JANG, JongSik LIM
  • Patent number: 9219465
    Abstract: Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include a bulk acoustic wave resonance unit and an anti-resonant frequency modifying unit to modify an anti-resonant frequency generated from the bulk acoustic wave resonance unit.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: December 22, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Soo Kim, Dal Ahn, Jae Shik Shin, In Sang Song, Duck Hwan Kim, Sang Uk Son, Ho Soo Park
  • Patent number: 9184724
    Abstract: Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include a bulk acoustic wave resonance unit and an anti-resonant frequency modifying unit to modify an anti-resonant frequency generated from the bulk acoustic wave resonance unit.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Soo Kim, Dal Ahn, Jae Shik Shin, In Sang Song, Duck Hwan Kim, Sang Uk Son, Ho Soo Park
  • Patent number: 9166555
    Abstract: A phase shifter using a Bulk Acoustic Wave Resonators (BAWR) is provided. The phase shifter using a BAWR may use a property of a phase shift with respect to a frequency of the BAWR, and also use at least one capacitor, at least one inductor, and the like.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jea Shik Shin, Dal Ahn, Duck Hwan Kim, In Sang Song, Chul Soo Kim, Yun Kwon Park, Hyung Rak Kim
  • Publication number: 20150263407
    Abstract: The present invention relates to a resonator and a filter using the same, and particularly, to a resonator, which includes partition walls that alternate vertically or horizontally in a cavity, and a filter using the resonator. The resonator includes: a housing which is made of a conductive material and includes a cavity; a cover which is made of a conductive material and fixed to an upper portion of the cavity, and seals the cavity; one or more first partition walls which are connected to one surface of inner surfaces of the cavity; and one or more second partition walls which are connected to the opposite surface to the one surface, in which the first partition walls and the second partition walls are made of a conductive material and have shapes corresponding to each other, and the first partition walls and the second partition walls alternate with each other.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Inventors: Dal Ahn, Yun Hong Yang, Seok Hwi Kim, Ki Suk Kim
  • Patent number: 9059491
    Abstract: Disclosed are a microstrip transmission line having a common defected ground structure (DGS) and a wireless circuit apparatus having the same. The microstrip transmission line realizes a common defected ground structure (DGS) and a double microstrip structure, and includes: a first dielectric layer; a first signal line pattern formed on a first surface of the first dielectric layer; a common ground conductive layer formed on a second surface of the first dielectric layer and having a defected ground structure, the first surface facing the second surface; a second dielectric layer having a first surface brought into contact with the common ground conductive layer, and facing the first dielectric layer while interposing the common ground conductive layer between the first dielectric layer and the second dielectric layer; and a second signal line pattern formed on a second surface of the second dielectric layer, the first surface facing the second surface.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: June 16, 2015
    Assignee: Soonchunhyang University Industry Academy Cooperation Foundation
    Inventors: Jongsik Lim, Dal Ahn
  • Publication number: 20140320239
    Abstract: The present invention can couple multiple resonances through a change in the shape of a part of a dielectric resonance element or of a cavity so as to couple energy between resonances when generating the multiple resonances, such as dual or triple resonances, of the dielectric resonance element in one cavity, thereby simplifying the shape and reducing the size thereof. In addition, a dielectric resonance element is manufactured into the shape of a doughnut so as to generate triple resonances in one cavity, thereby facilitating the manufacture of the dielectric resonance element and the emission of heat from the dielectric resonance element.
    Type: Application
    Filed: July 7, 2014
    Publication date: October 30, 2014
    Inventors: Yun-Hong PARK, Dal Ahn
  • Patent number: 8854157
    Abstract: Disclosed is a balun including a film bulk acoustic resonator (FBAR). The balun may be implemented using the FBAR to fabricate a small sized balun. Also, the balun may be implemented using the FBAR, thereby reducing a difference in two outputs.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: October 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Duck Hwan Kim, Dal Ahn, Chul Soo Kim, In Sang Song, Yun Kwon Park, Jea Shik Shin, Hyung Rak Kim
  • Publication number: 20130249644
    Abstract: A phase shifter using a Bulk Acoustic Wave Resonators (BAWR) is provided. The phase shifter using a BAWR may use a property of a phase shift with respect to a frequency of the BAWR, and also use at least one capacitor, at least one inductor, and the like.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 26, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jea Shik SHIN, Dal AHN, Duck Hwan KIM, In Sang SONG, Chul Soo KIM, Yun Kwon PARK, Hyung Rak KIM
  • Patent number: 8531253
    Abstract: In an ultra-wideband (UWB) band-pass filter, an equivalent circuit of a band-pass filter for direct frequency conversion is configured to have a series LC resonator and a parallel LC resonator, the parallel LC resonator is implemented as a short stub and an open stub, and the series LC resonator is implemented by modeling an inductor and a capacitor as a distributed constant circuit. The series LC resonator is implemented to have a 3D structure for effective designing of the band-pass filter by a new method of implementing a series resonator circuit. In the UWB band-pass filter, a low-pass filter for improving band-stop characteristics is additionally connected.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: September 10, 2013
    Assignee: Soonchunhyang University Industry Academy Cooperation Foundation
    Inventors: Dal Ahn, Jong Im Park
  • Patent number: 8416037
    Abstract: A phase shifter using a Bulk Acoustic Wave Resonators (BAWR) is provided. The phase shifter using a BAWR may use a property of a phase shift with respect to a frequency of the BAWR, and also use at least one capacitor, at least one inductor, and the like.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: April 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jea Shik Shin, Dal Ahn, Duck Hwan Kim, In Sang Song, Chul Soo Kim, Yun Kwon Park, Hyung Rak Kim
  • Publication number: 20130033340
    Abstract: Provided is a bulk acoustic wave resonator (BAWR). The BAWR may include a bulk acoustic wave resonance unit and an anti-resonant frequency modifying unit to modify an anti-resonant frequency generated from the bulk acoustic wave resonance unit.
    Type: Application
    Filed: March 27, 2012
    Publication date: February 7, 2013
    Inventors: Chul Soo Kim, Dal Ahn, Jae Shik Shin, In Sang Song, Duck Hwan Kim, Sang Uk Son, Ho Soo Park
  • Patent number: 8358587
    Abstract: A system for performing a local wireless communication using a predetermined frequency band divided into a plurality of channels. The system includes a hub for scanning each channel to identify available one of the plurality of channels and transmitting data over the available channel. The system further includes a sensor set to start to operate when the sensor detects a signal within the predetermined frequency band. The sensor spectrum-senses the signal of the frequency band for each channel, and analyzes a header of packet data for each channel, and receives and processes the packet data if the signal is identified to have a designated code.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: January 22, 2013
    Assignee: Soonchunhyang University Industry Academy Cooperation Foundation
    Inventors: Sang-Min Han, Jong-Sik Lim, Dal Ahn, Won-Sang Yoon, Young-Sik Kim
  • Patent number: 8330551
    Abstract: Disclosed herein is a dual band high frequency amplifier using a composite right/left handed (CRLH) transmission line (TL). Accordingly, a CRLH TL structure having a dual band characteristic is inserted into an input matching circuit and/or an output matching circuit in the high frequency amplifier, and a matching circuit is designed so that impedance matching is performed at two frequencies, thereby obtaining both gain and matching characteristics at the two frequencies.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 11, 2012
    Assignee: Soonchunhyang University Industry Academy Cooperation Foundation
    Inventors: Jongsik Lim, Dal Ahn
  • Publication number: 20120112857
    Abstract: Disclosed are a microstrip transmission line having a common defected ground structure (DGS) and a wireless circuit apparatus having the same. The microstrip transmission line realizes a common defected ground structure (DGS) and a double microstrip structure, and includes: a first dielectric layer; a first signal line pattern formed on a first surface of the first dielectric layer; a common ground conductive layer formed on a second surface of the first dielectric layer and having a defected ground structure, the first surface facing the second surface; a second dielectric layer having a first surface brought into contact with the common ground conductive layer, and facing the first dielectric layer while interposing the common ground conductive layer between the first dielectric layer and the second dielectric layer; and a second signal line pattern formed on a second surface of the second dielectric layer, the first surface facing the second surface.
    Type: Application
    Filed: October 6, 2011
    Publication date: May 10, 2012
    Inventors: Jongsik LIM, Dal AHN
  • Publication number: 20110115558
    Abstract: Disclosed herein is a dual band high frequency amplifier using a composite right/left handed (CRLH) transmission line (TL). Accordingly, a CRLH TL structure having a dual band characteristic is inserted into an input matching circuit and/or an output matching circuit in the high frequency amplifier, and a matching circuit is designed so that impedance matching is performed at two frequencies, thereby obtaining both gain and matching characteristics at the two frequencies.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 19, 2011
    Inventors: Jongsik Lim, Dal Ahn