Patents by Inventor Chanhee Oh

Chanhee Oh 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: 20230318173
    Abstract: An electronic device, according to various embodiments of the present disclosure, may comprise: a housing, a first circuit board disposed in the housing; flexible circuit boards electrically connected to the first circuit board, coil antennas disposed inside the housing and including a plurality of antennas having conductive patterns provided and configured to generate magnetic fields, a shielding layer disposed below a first antenna from among the plurality of antennas and metal shields disposed about side surfaces of the coil antennas and configured to shield a magnetic field in a first direction from among magnetic fields formed by the coil antennas.
    Type: Application
    Filed: May 3, 2023
    Publication date: October 5, 2023
    Inventors: Chanhee OH, Sungsoo KIM, Yongyoun KIM, Seyoon BAE, Seungbum CHOI, Hyunju HONG
  • Publication number: 20230216199
    Abstract: Various embodiments of the present disclosure relate to an electronic device for extending an operation range of an antenna. The electronic device may comprise: a foldable housing including a first housing, a second housing, and a hinge module including a hinge disposed between the first housing and the second housing; a first coil positioned inside the second housing and including n designated turns; a second coil positioned inside the first housing and including m designated turns less than the n, the second coil being connected in series with the first coil; a communication module comprising communication circuitry electrically connected to the first coil and the second coil; and a processor for controlling the communication module.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 6, 2023
    Inventors: Chanhee OH, Kyuyoung KIM, Yongyoun KIM, Byoungryoul SONG, Seungbum CHOI, Hyunju HONG
  • Publication number: 20230198128
    Abstract: An electronic device is provided. The electronic device includes first and second printed circuit boards (PCBs); a flexible PCB (FPCB) connecting the first and second PCBs; and an antenna module between the first and second PCBs.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Chanhee OH, Joon HEO, Soon PARK
  • Publication number: 20230096714
    Abstract: An electronic device may include, for example: a first housing, a second housing, a hinge cover, a hinge structure, a display, and a flexible printed circuit board (FPCB) including a rigid portion configured to be disposed on a first cover portion in the folded state, a first flexible portion connected to the rigid portion and configured to be at least partially bent along a second cover portion, and a second flexible portion connected to the rigid portion oppositely to the first flexible portion and configured to be at least partially bent along a third cover portion. The rigid portion is more rigid than the first flexible portion and the second flexible portion.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 30, 2023
    Inventors: Seyoon BAE, Yongyoun KIM, Joon HEO, Chanhee OH
  • Publication number: 20220320737
    Abstract: According to certain embodiments, an electronic device includes a display configured to output visual information to the front of the electronic device, a support structure configured to support at least one of electronic components accommodated in the electronic device, the support structure having a first surface and a second surface, and an antenna including a ground portion disposed on the first surface and a radiation portion disposed on the second surface that are disposed respectively on both surfaces of the support structure.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Inventors: Chanhee OH, Kyuyoung KIM, Sungsoo KIM, Hyunju HONG
  • Publication number: 20220322516
    Abstract: According to various embodiments of the disclosure, an electronic device may include a housing, a non-conductive supporting member disposed in the housing and including a first area, a second area spaced apart from the first area, and a third area connecting the first area and the second area, a conductive pattern portion disposed over the first area of the supporting member, a heat dissipation member disposed to at least partially overlap the conductive pattern portion, and an antenna including a circuit board, a conductive portion, and a ground portion. The conductive portion of the antenna may be disposed over the second area. The heat dissipation member may extend from the first area to the third area, and the ground portion of the antenna may extend from the second area to the third area to contact at least a portion of the heat dissipation member.
    Type: Application
    Filed: April 5, 2022
    Publication date: October 6, 2022
    Inventors: Yongyoun KIM, Chanhee OH, Dongkee JUNG
  • Patent number: 11431082
    Abstract: An electronic device is provided. The electronic device includes a housing structure including a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction, a display unit disposed at the first surface, a printed circuit board disposed inside the housing structure, a first coil disposed between the printed circuit board and the second surface and electrically connected to the printed circuit board and including a first pattern wound one or more times about a first axis parallel to the second direction, and a second coil disposed between the printed circuit board and the second surface and electrically connected to the printed circuit board and including a second pattern wound one or more times about a second axis parallel to the second direction.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 30, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chanhee Oh
  • Publication number: 20220264756
    Abstract: According to an embodiment, an electronic device may include a first housing, a second housing, a hinge device configured to connect the first housing and the second housing to be foldable about a folding axis, and a flexible display arranged to be supported by at least a part of the first housing, the second housing, and the hinge device. The hinge device may include a hinge housing including an accommodation portion, at least one cam assembly arranged in the accommodation portion, at least two coil spring members providing a pressing force to the at least one cam assembly in a direction parallel to the folding axis, and at least one hinge plate configured to support the at least one cam assembly. The at least two coil spring members may be coiled in opposite directions. Various other embodiments may be possible.
    Type: Application
    Filed: March 23, 2022
    Publication date: August 18, 2022
    Inventor: Chanhee OH
  • Patent number: 11101564
    Abstract: An electronic device that includes an antenna structure installable in a narrow space is provided. The electronic device may include a first support member, a second support member, a printed circuit board (PCB), an antenna, and a first connector. The second support member is disposed in parallel with the first support member such that a lower surface thereof faces the first support member, and combined with the first support member through a plurality of fixing members. The PCB is disposed between the first and second support members and fixed by the plurality of fixing members. The antenna includes a flexible printed circuit board (FPCB), a short range communication antenna pattern formed on the FPCB, and a wireless charging coil formed on the FPCB.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 24, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chanhee Oh
  • Publication number: 20200411989
    Abstract: An electronic device that includes an antenna structure installable in a narrow space is provided. The electronic device may include a first support member, a second support member, a printed circuit board (PCB), an antenna, and a first connector. The second support member is disposed in parallel with the first support member such that a lower surface thereof faces the first support member, and combined with the first support member through a plurality of fixing members. The PCB is disposed between the first and second support members and fixed by the plurality of fixing members. The antenna includes a flexible printed circuit board (FPCB), a short range communication antenna pattern formed on the FPCB, and a wireless charging coil formed on the FPCB.
    Type: Application
    Filed: February 20, 2020
    Publication date: December 31, 2020
    Inventor: Chanhee OH
  • Publication number: 20200411953
    Abstract: An electronic device is provided. The electronic device includes a housing structure including a first surface facing in a first direction and a second surface facing in a second direction opposite to the first direction, a display unit disposed at the first surface, a printed circuit board disposed inside the housing structure, a first coil disposed between the printed circuit board and the second surface and electrically connected to the printed circuit board and including a first pattern wound one or more times about a first axis parallel to the second direction, and a second coil disposed between the printed circuit board and the second surface and electrically connected to the printed circuit board and including a second pattern wound one or more times about a second axis parallel to the second direction.
    Type: Application
    Filed: February 20, 2020
    Publication date: December 31, 2020
    Inventor: Chanhee OH
  • Patent number: 8275597
    Abstract: In one embodiment, a method comprises creating a simulation model for a column of bit cells in a memory, simulating the simulation model to generate a result; and displaying the result for a user. Each of the bit cells in the column is coupled to a different wordline, and the simulation model comprises one or more linear elements in place of a nonlinear element in each bit cell that is coupled to an inactive wordline. The one or more linear elements approximate a behavior of the nonlinear element while the wordline is inactive. A computer accessible storage medium storing a simulator that implements the method is contemplated, and the simulator itself is also contemplated, in various embodiments.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: September 25, 2012
    Assignee: Cadence Design Systems, Inc.
    Inventors: Chanhee Oh, John F. Croix, Curtis L. Ratzlaff, Ramon D. Acosta
  • Patent number: 7251797
    Abstract: Processes and systems (300) for reducing pessimism in cross talk noise aware static timing analysis and thus resulting false path failures use either or both of effective delta delay noise (307) and path based delay noise (311) analysis. Effective delta delay determines an impact (312, 314, 316) on victim timing of an action by aggressors that occur during a region (209, 319, 321) where victim and aggressor timing windows overlap and determines an effective delta delay 317 corresponding to any portion 316 of the impact on victim timing that extends beyond the victim timing window. The effective delta delay is used to adjust the victim timing window. Path based delta delay determines an uncertainty (627, 637) in a switching time corresponding to a particular path for a victim resulting from an action (switching) by aggressors that occurs at the switching time 607, 613, i.e. during a switching time window (a2 to a2+u1) (613, 625) when uncertainty is included.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: July 31, 2007
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Murat R. Becer, Ilan Algor, Amir Grinshpon, Rafi Levy, Chanhee Oh, Rajendran V. Panda, Vladimir P. Zolotov
  • Patent number: 7149674
    Abstract: A method of improving performance of a dual Vt integrated circuit is disclosed in which a first value is calculated for each transistor of the integrated circuit that has a first threshold voltage level. The first value is based at least in part on delay and leakage of the circuit calculated as if the corresponding transistor had a second threshold voltage level. One transistor is then selected based on the first values. The threshold voltage of the selected transistor is then set to the second threshold voltage level. The area of at least one transistor within the circuit is modified, and the circuit is then sized to a predetermined area. The process may then be repeated if the circuit performance fails to meet a defined constraint.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: December 12, 2006
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Supamas Sirichotiyakul, David T. Blaauw, Timothy J. Edwards, Chanhee Oh, Rajendran V. Panda, Judah L. Adelman, David Moshe, Abhijit Dharchoudhury
  • Publication number: 20060112359
    Abstract: Processes and systems (300) for reducing pessimism in cross talk noise aware static timing analysis and thus resulting false path failures use either or both of effective delta delay noise (307) and path based delay noise (311) analysis. Effective delta delay determines an impact (312, 314, 316) on victim timing of an action by aggressors that occur during a region (209, 319, 321) where victim and aggressor timing windows overlap and determines an effective delta delay 317 corresponding to any portion 316 of the impact on victim timing that extends beyond the victim timing window. The effective delta delay is used to adjust the victim timing window. Path based delta delay determines an uncertainty (627, 637) in a switching time corresponding to a particular path for a victim resulting from an action (switching) by aggressors that occurs at the switching time 607, 613, i.e. during a switching time window (a2 to a2+u1) (613, 625) when uncertainty is included.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 25, 2006
    Inventors: Murat Becer, Ilan Algor, Amir Grinshpon, Rafi Levy, Chanhee Oh, Rajendran Panda, Vladimir Zolotov
  • Patent number: 6799153
    Abstract: A solution to perform cross coupling delay characterization for integrated circuits and other microprocessor applications. The invention properly models the integrated circuit in various configurations at various times to accommodate the non-linearities associated with driver circuitry and the undesirable capacitive coupling between nets within the integrated circuit, specifically those that are located within close proximity to one another and that generate deleterious effects of the transitions of the drivers from low to high, and from high to low. The invention provides for a computationally efficient solution to perform the delay characterization of the speeding up and slowing down of individual transition operations within the microprocessor.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: September 28, 2004
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Supamas Sirichotiyakul, David T. Blaauw, Chanhee Oh, Vladimir P. Zolotov, Rafi Levy
  • Publication number: 20030061016
    Abstract: Method for generating a set of switching vectors where each vector S1-Si causes the output X to transition in the predetermined way provided that the input A transitions in the selected way. This method may be used for any electrical circuit cluster, including the simple one illustrated in FIG. 3. This method handles any number of side inputs, gate clusters which have feedback within the gate cluster, and gate clusters which have internal nodes that may be in a third state other than a logic level one or a logic level zero (e.g. a high impedance state).
    Type: Application
    Filed: August 29, 2001
    Publication date: March 27, 2003
    Inventors: David T. Blaauw, Supamas Sirichotiyakul, Chanhee Oh, Rafi Levy, Vladimir P. Zolotov