Patents by Inventor Cheol-Woong Park
Cheol-Woong Park 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: 20240149109Abstract: A knee joint rehabilitation apparatus for a wheelchair includes a rehabilitation apparatus frame having a height corresponding to a length of each of legs of a patient sitting on the wheelchair; an upper leg support disposed at an upper end of the rehabilitation apparatus frame and supporting upper legs of the patient thereon while the patient is sitting on the wheelchair; a lower leg support pivotably connected to the upper leg support, wherein the lower legs of the patient are seated and supported on the lower leg support; and an exercise control unit disposed on the rehabilitation apparatus frame and configured to allow the lower leg support to pivot around a connection portion between the lower leg support and the upper leg support such that the patient performs rehabilitation exercise of the knee joint thereof while sitting on the wheelchair.Type: ApplicationFiled: January 10, 2022Publication date: May 9, 2024Applicant: HEXARHUMANCARE CO., LTDInventors: Chang Soo HAN, Ho Jun KIM, Su Hyu PARK, Young Hoon JI, Jeong Ho CHO, Byung Gab RYU, Jeong Gyu PARK, Dong Eun CHOI, Cheol Woong AHN
-
Patent number: 11973106Abstract: A semiconductor device includes a lower electrode; a supporter supporting an outer wall of the lower electrode; a dielectric layer formed on the lower electrode and the supporter; an upper electrode on the dielectric layer; a first interfacial layer disposed between the lower electrode and the dielectric layer and selectively formed on a surface of the lower electrode among the lower electrode and the supporter; and a second interfacial layer disposed between the dielectric layer and the upper electrode, wherein the first interfacial layer is a stack of a metal oxide contacting the lower electrode and a metal nitride contacting the dielectric layer.Type: GrantFiled: July 5, 2022Date of Patent: April 30, 2024Assignee: SK hynix Inc.Inventors: Jae Hee Song, Dong Hyun Lee, Kyung Woong Park, Cheol Hwan Park, Ki Vin Im
-
Patent number: 11921158Abstract: Disclosed is a fan-out buffer which includes a first channel that includes a first delay circuit adjusting a first delay time of a calibration test signal depending on a first delay control signal, a second channel that includes a second delay circuit adjusting a second delay time of the calibration test signal depending on a second delay control signal, a first edge-to-pulse converter that detects a first edge included in a first time domain reflectometry (TDR) waveform of an output terminal of the first channel and generates a first start pulse signal including a first pulse, a second edge-to-pulse converter that generates a second start pulse signal including a second pulse, a stop pulse signal generator that generates a stop pulse signal including a first stop pulse, and a first delay control signal generator that calculates a phase difference generates the first delay control signal.Type: GrantFiled: December 6, 2022Date of Patent: March 5, 2024Inventors: Byung-Sung Kim, Yun-Hyok Choi, Gyuyeol Kim, Sungjung Kim, Cheol-Heui Park, Sanghoon Lee, Jae-Woong Choi
-
Patent number: 11251594Abstract: Provided is a fastening structure of a clamp for supporting a power line and an insulator, which includes a fastening means for preventing an end of the insulator from being separated from the clamp in a state in which the end of the insulator is disposed between an arm part and an auxiliary arm part of the clamp. The fastening means includes a pin fitted to pass through through-holes of the arm part and the auxiliary arm part of the clamp and the end of the insulator and an elastic latching rod mounted on the pin and elastically curved to pass through each of the through-holes and to be restored in its original shape, thereby preventing the pin from being separated. The elastic latching rod is mounted on the pin and has the form of a coil spring where both ends of the elastic latching rod protrude from the pin.Type: GrantFiled: December 7, 2016Date of Patent: February 15, 2022Inventor: Cheol Woong Park
-
Publication number: 20180375315Abstract: Provided is a fastening structure of a clamp for supporting a power line and an insulator, which includes a fastening means for preventing an end of the insulator from being separated from the clamp in a state in which the end of the insulator is disposed between an arm part and an auxiliary arm part of the clamp. The fastening means includes a cotter pin fitted to pass through through-holes of the arm part and the auxiliary arm part of the clamp and the end of the insulator and an elastic latching rod mounted on the cotter pin and elastically curved to pass through each of the through-holes and to be restored in its original shape, thereby preventing the cotter pin from being separated. The elastic latching rod is mounted on the cotter pin and has the form of a coil spring where both ends of the elastic latching rod protrude from the cotter pin. A dent groove corresponding to each of both the protruding ends of the elastic latching rod is formed in each of side surfaces of the cotter pin facing each other.Type: ApplicationFiled: December 7, 2016Publication date: December 27, 2018Inventor: Cheol Woong PARK
-
Patent number: 9694340Abstract: In a reactor for solid ammonium salt, a method of controlling the reactor, and a NOx emission purification system using solid ammonium salt and selective catalytic reduction, the reactor includes a first chamber and a second chamber. The first chamber has an exhaust and a first heating element. Solid ammonium salt is in the first chamber. The second chamber has a second heating element and is formed at a side of the first chamber. The first chamber is connected with the second chamber. Solid ammonium salt is in the second chamber. An amount of the solid ammonium salt in the second chamber is more than that in the first chamber, so that the first chamber is heated and cooled faster than the second chamber.Type: GrantFiled: December 12, 2013Date of Patent: July 4, 2017Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Hong-Suk Kim, Gyu-Baek Cho, Yong-Jin Kim, Jun-Ho Lee, Young-Il Jeong, Seok-Hwan Lee, Cheol-Woong Park, Chang-Ki Kim, Sun-Youp Lee, Jang-Hee Lee, Seung-Mook Oh, Kern-Yong Kang
-
Patent number: 9380371Abstract: An apparatus and method for improving the performance of a determination of whether an earphone is mounted to a portable terminal, such as a portable terminal supporting a 3.5 mm earphone plug, are provided. An apparatus for recognizing whether the earphone is mounted to the portable terminal includes a common ground terminal and a switching terminal of an earphone plug receptacle for electrically connecting to each other and the same pole of an earphone plug when the earphone plug is mounted in the earphone plug receptacle, and an external output managing unit for generating an earphone mounting notification signal through a detector.Type: GrantFiled: December 8, 2010Date of Patent: June 28, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Cheol-Woong Park, You-Sung Lee, Il-Seob Baek, Jung-Eun Hwang, Jun-Ki Seo, Hyun-Joo Kim
-
Publication number: 20150231595Abstract: In a reactor for solid ammonium salt, a method of controlling the reactor, and a NOx emission purification system using solid ammonium salt and selective catalytic reduction, the reactor includes a first chamber and a second chamber. The first chamber has an exhaust and a first heating element. Solid ammonium salt is in the first chamber. The second chamber has a second heating element and is formed at a side of the first chamber. The first chamber is connected with the second chamber. Solid ammonium salt is in the second chamber. An amount of the solid ammonium salt in the second chamber is more than that in the first chamber, so that the first chamber is heated and cooled faster than the second chamber.Type: ApplicationFiled: December 12, 2013Publication date: August 20, 2015Inventors: Hong-Suk Kim, Gyu-Baek Cho, Yong-Jin Kim, Jun-Ho Lee, Young-Il Jeong, Seok-Hwan Lee, Cheol-Woong Park, Chang-Ki Kim, Sun-Youp Lee, Jang-Hee Lee, Seung-Mook Oh, Kern-Yong Kang
-
Publication number: 20120322502Abstract: A MultiBand-MultiMode (MBMM) wireless communication apparatus for performing seamless wireless communication by supporting Inter-Radio Access Technology (RAT) handover between communication networks according to different access types is provided. The apparatus includes a first Radio Frequency (RF) unit accessing a first wireless network, a second RF unit accessing a second wireless network having a different access type than the first wireless network, an interface unit connected to a target electronic device, and a switching unit connected to both the first and second RF units. The switching unit connects at least one of the RF units to the interface unit for communicating with the target electronic device. The first RF unit selects one of the RF units according to a camping order of the RF units or according to signal receiving conditions of the RF units, and controls the switching unit to connect the selected RF unit to the interface unit.Type: ApplicationFiled: March 6, 2012Publication date: December 20, 2012Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Chang Won SONG, Yong Soo SONG, Cheol Woong PARK
-
Publication number: 20110135109Abstract: An apparatus and method for improving the performance of a determination of whether an earphone is mounted to a portable terminal, such as a portable terminal supporting a 3.5 mm earphone plug, are provided. An apparatus for recognizing whether the earphone is mounted to the portable terminal includes a common ground terminal and a switching terminal of an earphone plug receptacle for electrically connecting to each other and the same pole of an earphone plug when the earphone plug is mounted in the earphone plug receptacle, and an external output managing unit for generating an earphone mounting notification signal through a detector.Type: ApplicationFiled: December 8, 2010Publication date: June 9, 2011Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Cheol-Woong PARK, You-Sung LEE, Il-Seob BAEK, Jung-Eun HWANG, Jun-Ki SEO, Hyun-Joo KIM
-
Publication number: 20110032199Abstract: A method and apparatus for controlling touch sensitivity in a portable terminal are provided. The method includes controlling the touch sensitivity of a Touch Screen Panel (TSP) according to application or function in operation, and sensing a touch operation generated in the TSP at the controlled touch sensitivity.Type: ApplicationFiled: August 3, 2010Publication date: February 10, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun-Ki SEO, Il-Seob BAEK, Cheol-Woong PARK
-
Publication number: 20100013781Abstract: A touch key module of an electronic device is provided. The touch key module includes a Printed Circuit Board (PCB) on which a capacitive touch sensor chip is located and a conductor, located on a surface of the PCB, for detecting contact of the capacitive touch sensor chip.Type: ApplicationFiled: July 9, 2009Publication date: January 21, 2010Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Cheol-Woong Park, Il-Seob Baek, Wan-Sang Ryu, Joo-Hwan Park
-
Publication number: 20060111162Abstract: A portable wireless terminal with a built-in antenna module is provided. In the portable wireless terminal, a main body includes an upper case frame, a lower case frame, and a main board mounted between the upper and lower case frames. A built-in antenna module is disposed on the main board. A conductor is formed or mounted on at least one of the upper and lower case frames in the vicinity of the built-in antenna module, thereby preventing the degradation of the radiation of the built-in antenna module caused by an external interference and improving antenna performance.Type: ApplicationFiled: November 22, 2005Publication date: May 25, 2006Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Beom Seol, Chin-Sop Choe, Jang-Hyun Nam, Cheol-Woong Park, Wan-Sang Ryu, Joo-Hwan Park