Patents by Inventor Zang-Hee Cho
Zang-Hee Cho 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).
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Patent number: 7607585Abstract: An integrated circuit device having multiple communication modes is provided. The integrated circuit device includes a transceiver coupled to first and second data lines. The integrated circuit device further includes a voltage control circuit. The voltage control circuit determines whether or not an external device is connected to the integrated circuit device. In the case where the external device is connected to the integrated circuit device, the voltage control circuit controls the voltage of the first data line so as to cause the external device to not recognize the integrated circuit device for a predetermined time.Type: GrantFiled: February 26, 2003Date of Patent: October 27, 2009Assignee: Samsung Electroncis Co., Ltd.Inventor: Zang-Hee Cho
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Publication number: 20090200368Abstract: A multi-interface card includes smart card interface, memory card interface, card controller and memory module. The smart card interface interfaces with a smart card host using a smart card protocol. The memory card interface interfaces with a memory card host using a memory card protocol. The card controller controls the smart card host and memory card host so that the smart card host and the memory card host simultaneously interface with the smart card and the memory card interfaces, respectively. The memory module stores data transferred from the smart card host and memory card host. The multi-interface card simultaneously supports the smart card interface and the memory card interface. Thus, the one multi-interface card can support a subscriber authentication function and a data storage function.Type: ApplicationFiled: April 15, 2009Publication date: August 13, 2009Inventors: Kyoung-Hun Kim, Seong-Hyun Kim, Jong-Hoon Shin, Yong-Joo Park, Zang-Hee Cho, Jong-sang Choi, Jeon-Taek Im
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Publication number: 20090203404Abstract: A chip card receives and processes what-ever combination of contact data and contact-less data is available to allow multiple functionalities for the chip card. A micro-computer of the chip card is adapted to simultaneously receive and process contact data from a contact interface and contact-less data from a contact-less interface. In addition, the chip card includes a power voltage selector for selecting a contact bias to supply power to the micro-computer when-ever the contact bias voltage is available since the contact bias voltage is more stable than a contact-less bias voltage.Type: ApplicationFiled: March 17, 2009Publication date: August 13, 2009Inventor: Zang-Hee Cho
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Publication number: 20090134873Abstract: There is provided an RF (radio frequency) coil assembly of a magnetic resonance imaging (MRI) system, which comprises a birdcage transmit-only coil using inhomogeneous modes. Further, a multi-channel receive-only phased array coil is provided. In one embodiment, the multi-channel receive-only phased array coil may include a plurality of ring-shaped receive-only coils, wherein the receive-only coils are connected to each other in a pseudo-chain-link configuration to form a ring shape. The multi-channel receive-only phased array coil may be located inside said transmit-only coil and spaced a predetermined distance apart therefrom. In accordance with the embodiments, emphasis images of the peripheral part of a human brain with high resolution and high signal to noise ratio may be obtained.Type: ApplicationFiled: July 22, 2008Publication date: May 28, 2009Applicant: GACHON UNIVERSITY OF MEDICINE & SCIENCE INDUSTRY- ACADEMIC COOPERATION FOUNDATIONInventors: Zang Hee Cho, Young Bo Kim, Kyoung Nam Kim, Suk Min Hong
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Patent number: 7520438Abstract: A multi-interface card includes smart card interface, memory card interface, card controller and memory module. The smart card interface interfaces with a smart card host using a smart card protocol. The memory card interface interfaces with a memory card host using a memory card protocol. The card controller controls the smart card host and memory card host so that the smart card host and the memory card host simultaneously interface with the smart card and the memory card interfaces, respectively. The memory module stores data transferred from the smart card host and memory card host. The multi-interface card simultaneously supports the smart card interface and the memory card interface. Thus, the one multi-interface card can support a subscriber authentication function and a data storage function.Type: GrantFiled: August 26, 2005Date of Patent: April 21, 2009Assignee: Samsung Electronics, Co., Ltd.Inventors: Kyoung-Hun Kim, Seong-Hyun Kim, Jong-Hoon Shin, Yong-Joo Park, Zang-Hee Cho, Jong-Sang Choi, Jeon-Taek Im
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Patent number: 7520441Abstract: A chip card receives and processes what-ever combination of contact data and contact-less data is available to allow multiple functionalities for the chip card. A micro-computer of the chip card is adapted to simultaneously receive and process contact data from a contact interface and contact-less data from a contact-less interface. In addition, the chip card includes a power voltage selector for selecting a contact bias to supply power to the micro-computer when-ever the contact bias voltage is available since the contact bias voltage is more stable than a contact-less bias voltage.Type: GrantFiled: June 8, 2007Date of Patent: April 21, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Zang-Hee Cho
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Publication number: 20080309340Abstract: A magnetic resonance imaging system is provided, which can provide the homogeneous magnetic field to obtain a head anatomic image with a high resolution and high SNR by coaxially disposing a receive-only phased array antenna inside a transmit-only antenna with a predetermined gap, and thereby a detailed and accurate image of a man's head can be obtained.Type: ApplicationFiled: March 11, 2008Publication date: December 18, 2008Applicant: GACHON UNIVERSITY OF MEDICINE & SCIENCE INDUSTRY- ACADEMIC COOPERATION FOUNDATIONInventors: Zang Hee Cho, Young Bo Kim, Kyoung Nam Kim, Suk Min Hong
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Patent number: 7456406Abstract: A method and apparatus are provided for reconstructing 3D image. The method may include the steps of: detecting a plurality of line of responses (LORs) emitted from an object; transforming the plurality of LORs into first sinogram data; back-projecting the first sinogram data with a plurality of projection angles to produce image data for the object; and projecting the produced image data with the plurality of projection angles to transform the image data into second sinogram data. The back-projecting may include filling pixels of image plane for each of the plurality of projection angles with the first sinogram data and rotating a coordinate axis of the image plane with corresponding projection angle to produce the image data. The projecting may include rotating the image data with corresponding projection angle in an opposite direction before projecting the image data with the plurality of projection angles. The projecting and the back-projecting may use symmetry properties in coordinate space.Type: GrantFiled: May 7, 2007Date of Patent: November 25, 2008Assignees: Gachon University of Medicine, Science Industry-Academic Cooperation Foundation in Ke HongInventors: Zang Hee Cho, Young Bo Kim, Cheol Ok Lee, In Ki Hong, Sung Tak Chung, Hang Keun Kim, Young Don Son
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Publication number: 20080045831Abstract: Embodiments of the present invention may provide a cradle transferring device, which moves and withdraws a cradle to and from an examination table of an MRI apparatus in a PET-MRI hybrid system. The cradle transferring device includes: a cradle, on which a subject lies; a shuttle table supporting the cradle and moving and withdrawing the cradle to and from the examination table of the MRI apparatus; and a cradle receiving member provided on the examination table of the MRI apparatus. The shuttle table is provided with a transfer member for holding and transferring the cradle and a transfer member driving means for reciprocating the transfer member along the shuttle table. The cradle transferring device is further provided with a cradle locking means, which locks the cradle to the examination table after the cradle is moved to the examination table.Type: ApplicationFiled: August 17, 2007Publication date: February 21, 2008Applicant: Gachon University of Medicine & Science Industry-Academic Cooperation FoundationInventors: Zang Hee Cho, Cheol Ok Lee, Young Bo Kim, Ja Weon Yun, Hyung Jin Ahn, Dong Sung Kim, Hong Shim
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Patent number: 7332896Abstract: An apparatus and method for controlling a supply voltage of a multiple interface card includes a first voltage adjustment unit, a second voltage adjustment unit, an internal circuit, a first voltage controller, and a second voltage controller. The first voltage controller adjusts a first supply voltage to a first internal supply voltage used as an operating voltage of the internal circuit and supplies the first internal supply voltage to the internal circuit. The second voltage adjustment unit adjusts a second supply voltage to a second internal supply voltage used as an operating voltage of the internal circuit and supplies the second internal supply voltage to the internal circuit. The first voltage controller detects the first supply voltage and, according to the first supply voltage, either applies the first supply voltage to the first voltage adjustment unit or blocks the first supply voltage from the first voltage adjustment unit.Type: GrantFiled: December 22, 2005Date of Patent: February 19, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Hoon Shin, Kyoung-Hun Kim, Seong-Hyun Kim, Yong-Joo Park, Jong-Sang Choi, Jeon-Taek Im, Zang-Hee Cho
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Publication number: 20070243901Abstract: A chip card receives and processes what-ever combination of contact data and contact-less data is available to allow multiple functionalities for the chip card. A micro-computer of the chip card is adapted to simultaneously receive and process contact data from a contact interface and contact-less data from a contact-less interface. In addition, the chip card includes a power voltage selector for selecting a contact bias to supply power to the micro-computer when-ever the contact bias voltage is available since the contact bias voltage is more stable than a contact-less bias voltage.Type: ApplicationFiled: June 8, 2007Publication date: October 18, 2007Inventor: Zang-Hee Cho
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Patent number: 7246750Abstract: A chip card receives and processes what-ever combination of contact data and contact-less data is available to allow multiple functionalities for the chip card. A micro-computer of the chip card is adapted to simultaneously receive and process contact data from a contact interface and contact-less data from a contact-less interface. In addition, the chip card includes a power voltage selector for selecting a contact bias to supply power to the micro-computer when-ever the contact bias voltage is available since the contact bias voltage is more stable than a contact-less bias voltage.Type: GrantFiled: May 24, 2004Date of Patent: July 24, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Zang-Hee Cho
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Publication number: 20060158809Abstract: An apparatus and method for controlling a supply voltage of a multiple interface card includes a first voltage adjustment unit, a second voltage adjustment unit, an internal circuit, a first voltage controller, and a second voltage controller. The first voltage controller adjusts a first supply voltage to a first internal supply voltage used as an operating voltage of the internal circuit and supplies the first internal supply voltage to the internal circuit. The second voltage adjustment unit adjusts a second supply voltage to a second internal supply voltage used as an operating voltage of the internal circuit and supplies the second internal supply voltage to the internal circuit. The first voltage controller detects the first supply voltage and, according to the first supply voltage, either applies the first supply voltage to the first voltage adjustment unit or blocks the first supply voltage from the first voltage adjustment unit.Type: ApplicationFiled: December 22, 2005Publication date: July 20, 2006Inventors: Jong-Hoon Shin, Kyoung-Hun Kim, Seong-Hyun Kim, Yong-Joo Park, Jong-Sang Choi, Jeon-Taek Im, Zang-Hee Cho
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Publication number: 20060043202Abstract: A multi-interface card includes smart card interface, memory card interface, card controller and memory module. The smart card interface interfaces with a smart card host using a smart card protocol. The memory card interface interfaces with a memory card host using a memory card protocol. The card controller controls the smart card host and memory card host so that the smart card host and the memory card host simultaneously interface with the smart card and the memory card interfaces, respectively. The memory module stores data transferred from the smart card host and memory card host. The multi-interface card simultaneously supports the smart card interface and the memory card interface. Thus, the one multi-interface card can support a subscriber authentication function and a data storage function.Type: ApplicationFiled: August 26, 2005Publication date: March 2, 2006Inventors: Kyoung-Hun Kim, Seong-Hyun Kim, Jong-Hoon Shin, Yong-Joo Park, Zang-Hee Cho, Jong-Sang Choi, Jeon-Taek Im
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Publication number: 20040232248Abstract: A chip card receives and processes what-ever combination of contact data and contact-less data is available to allow multiple functionalities for the chip card. A micro-computer of the chip card is adapted to simultaneously receive and process contact data from a contact interface and contact-less data from a contact-less interface. In addition, the chip card includes a power voltage selector for selecting a contact bias to supply power to the micro-computer when-ever the contact bias voltage is available since the contact bias voltage is more stable than a contact-less bias voltage.Type: ApplicationFiled: May 24, 2004Publication date: November 25, 2004Inventor: Zang-Hee Cho
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Publication number: 20030206547Abstract: An integrated circuit device having multiple communication modes is provided. The integrated circuit device includes a transceiver coupled to first and second data lines. The integrated circuit device further includes a voltage control circuit. The voltage control circuit determines whether or not an external device is connected to the integrated circuit device. In the case where the external device is connected to the integrated circuit device, the voltage control circuit controls the voltage of the first data line so as to cause the external device to not recognize the integrated circuit device for a predetermined time.Type: ApplicationFiled: February 26, 2003Publication date: November 6, 2003Applicant: Samsung Electronics Co., Inc.Inventor: Zang-Hee Cho
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Patent number: 5023554Abstract: Extremely non-homogenous high but extremely intense high fringe magnetic fields are purposefully (and even advantageously) utilized for magnetic resonance imaging (including localization and spectroscopy) so as to better obtain advantages typically associated with ultra high field MRI. Static magnetic field gradients inherently included in such fringe fields are actively utilized in conjunction with suitable NMR RF nutation pulses so as to achieve volume-selective NMR data acquisition. Special arrangements of static electromagnets, magnetic gradient coils and/or RF coils may be used in conjunction with novel RF/gradient pulse sequences so as to elicit and acquire suitable MRI data.Type: GrantFiled: May 22, 1989Date of Patent: June 11, 1991Assignee: The Reagents of the University of CaliforniaInventors: Zang-Hee Cho, Edward K. Wong, Jr.
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Patent number: 4980552Abstract: A greatly reduced number of scintillation cyrstal/PMT gamma ray detectors are employed in a ring array about a PET image volume. Because of the relatively small number of such detectors, the complexity and expense of associated electronic signal processing channels is greatly reduced (even if each such channel is provided with sophisticated time of flight capabilities). Similarly, because relatively fewer crystals are employed, it becomes possible to use much larger and faster response time scintillation crystals so as to greatly increase gamma ray detection efficiency and scatter rejection while also permitting the electronic circuits to better reject random events and to provide effective time of flight image data filtering.Type: GrantFiled: June 20, 1989Date of Patent: December 25, 1990Assignee: The Regents of the University of CaliforniaInventors: Zang-Hee Cho, Monte S. Buchsbaum, William E. Bunny, Richard M. Friedenberg, Edward K. Wong, Jr.