Adjustable Keyboard Patents (Class 361/679.11)
  • Patent number: 8295038
    Abstract: A variable form handheld computer may be configurable either as a short form handheld computer or as long form handheld computer. The variable form handheld computer comprises a variable form housing frame configurable as either a short form housing frame or a long form housing frame. The variable form housing frame comprises a plurality of handheld computing modules comprising a display module, a circuitry module, a battery module and a variable form keyboard, the variable form keyboard configurable either as a short form keyboard or a long form keyboard. The long form housing frame securely frames the handheld computing modules when the variable form keyboard is configured as the long form keyboard, and the short form housing frame securely frames the plurality of computing modules when the variable form keyboard is configured as the short form keyboard.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 23, 2012
    Assignee: Psion Inc.
    Inventors: Michael Gleeson, Dinesh Nataly Gandhi
  • Patent number: 8284543
    Abstract: A structure of a keyboard is combinable with an electronic device, and includes a keyboard body and a frame. The frame is of a U-shape having two limbs that has end portions slidably fit in elongate slots defined in two side walls of the keyboard body to be movable along the slots and rotatable with respect thereto. When the keyboard body and the frame are assembled together, the keyboard structure defines in a top thereof a receptacle for receiving and retaining the electronic device. The keyboard body includes a signal output structure engageable with a signal transmission interface of the electronic device. When combined together for operation, the electronic device is movable with the frame to expose keys of the keyboard. The electronic device is detachable from the keyboard structure for independent operation thereby reducing the overall size for easy carrying.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: October 9, 2012
    Assignee: Unication Co., Ltd.
    Inventor: Tsung-Han Wang
  • Patent number: 8274713
    Abstract: An image acquisition apparatus for acquiring an image of a document including a housing having an internal space, a substantially transparent window, a CCD sensor array, a light source for illuminating the document and an opaque cover device for blocking light from escaping the internal space of the housing through the transparent window. The cover device includes an opaque wall that combined with the document, operationally blocks the escaping of light from the internal space of the housing. The cover device further includes a primary insertion slit, a document removing mechanism and a removal slit for removing a small form document through the removal slit. Optionally, the cover device further includes a second insertion slit for inserting the small form document. The width of the second insertion slit is smaller than the width of the first insertion slit.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: September 25, 2012
    Inventors: Iuval Hatzav, Ilan Ben-Shahar, Giyora Sharaby, Daniel Hatzav
  • Patent number: 8253600
    Abstract: A keyboard includes housing and two support members. The housing defines two receiving spaces each including a bottom defining a perforation. The two support members are received in the receiving spaces. Each support member includes an adjusting wheel and a support. The adjusting wheel is rotatably received in the receiving space and defines a spiral groove. The spiral groove includes spiral lateral surface. The support is received in the receiving spaces and aligned with the perforation, and includes a pin received in the spiral groove. When the adjusting wheels are rotated, the pins are urged by the spiral lateral surface to move, changing an inclination angle between the base and a support surface supporting the base.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 28, 2012
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Shuai Zhang
  • Patent number: 8217898
    Abstract: A keyboard includes a plurality of key row holders each supporting a plurality of key elements constituting each of the plurality of key rows, a support shaft placed to be rotatable about an axial center and support the plurality of key row holders arranged to intersect the axial center, an engaging portion formed on a support surface of each of the plurality of key row holders for the support shaft, and an engaged portion formed spirally on a surface of the support shaft in a direction of the axial center so as to be engaged with the engaging portion of each of the plurality of key row holders, the engaged portion causing the plurality of key row holders to shift in the direction of the axial center by an engagement with the engaging portion upon rotation of the support shaft. The keyboard enables easy and accurate key pitch adjustment.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: July 10, 2012
    Assignee: Sony Corporation
    Inventors: Masatoshi Fujino, Masayoshi Koganei, Yutaka Ogasawara, Yasushi Itoshiro, Kazuhito Sato, Kazuhiko Otake
  • Patent number: 8199465
    Abstract: A collapsible device includes a cover, a base, and a hinge. The cover includes a display on a top of the cover. The base defines a groove extending through a front and a rear sides of the base. The groove defines a keyboard region adjacent to the front side, and a fixing slot adjacent to the rear side. The hinge is connected to a bottom of the cover and the fixing slot. The cover is rotatably received in the groove, and the cover is operable of rotating relative to the display around the hinge, to cover or expose the keyboard region.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: June 12, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Wen-Bin Shen
  • Patent number: 8164887
    Abstract: A portable electronic device includes a housing, a button assembly, two positioning elements, and a resisting plate. The housing defines a plurality of through holes. The button assembly includes buttons arranged in button rows. Each button row is received in one of the through hole. The positioning elements each are positioned at one side of the housing. The resisting plate and the positioning elements fix the button assembly to the housing.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 24, 2012
    Assignee: FIH (Hong Kong) Limited
    Inventor: Chao-Yuan Cheng
  • Patent number: 8108016
    Abstract: A portable communication device includes a base assembly, a flip assembly and an intermediate assembly operatively coupled to the base assembly and the flip assembly by a dual sliding flip hinge assembly. The dual sliding flip hinge assembly is configured to facilitate sliding motion of the intermediate assembly along a first direction and along a second direction that is perpendicular to the first direction. The dual sliding flip hinge assembly further facilitates rotation of the intermediate assembly upon sliding along the second direction. The base assembly, flip assembly and intermediate assembly may be configured to include respective displays and/or touch-input devices to provide a portable communication device with increased display area and/or control area with a smaller footprint often associated with conventional clamshell or slider portable communication devices.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: January 31, 2012
    Assignee: Sony Ericsson Mobile Communications AB
    Inventor: David W. Gaddy
  • Patent number: 8102647
    Abstract: A portable information handling system's integrated keyboard stows keys into a retracted position when the portable information handling system transitions from an open to a closed position, such as by rotating a lid to a closed position relative to a chassis having the keyboard. A cover plate disposed in the keyboard engages the keyboard keys to retract the keys into the information handling system when the lid of the information handling system rotates to a closed position and releases the keys to be biased out from the information handling systems when the lid rotates to an open position.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: January 24, 2012
    Assignee: Dell Products L.P.
    Inventors: Gurmeet S. Bhutani, Ronald LeBert
  • Patent number: 8081433
    Abstract: An electronic apparatus includes a keyboard unit that has an upper surface on which a plurality of keys are provided, and one side and a different side each of which has an attachment section, the different side facing the one side, a fixing section that fixes the keyboard unit in cooperation with the attachment sections of the keyboard unit, and a mounting section on which the keyboard unit is mounted in a state in which the keyboard is upwardly curved with respect to a predetermined reference surface when the keyboard unit is fixed by the attachment sections of the keyboard unit and the fixing section.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: December 20, 2011
    Assignee: Fujitsu Limited
    Inventor: Masaki Iwata
  • Patent number: 8046035
    Abstract: A slide type mobile terminal according to an aspect of the invention comprises: a main body having buttons and a slide part having a display, wherein the buttons comprise at least one open button that is open to the exterior and at least one hidden button that is not open to the exterior when the slide part is opened with respect to the main body, the slide part comprises at least one push protrusion corresponding with at least the hidden button, and the main body and the slide part are joined by a connection means which allows sliding of the slide part with respect to the main body. With such a composition, the invention allows for a larger display on the slide part and provides a slide type mobile terminal which can have various functional buttons.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: October 25, 2011
    Assignee: KT Tech, Inc.
    Inventors: Ul-Ho Lee, Yong-Jae Kim
  • Publication number: 20110211308
    Abstract: A variable form handheld computer may be configurable either as a short form handheld computer or as long form handheld computer. The variable form handheld computer comprises a variable form housing frame configurable as either a short form housing frame or a long form housing frame. The variable form housing frame comprises a plurality of handheld computing modules comprising a display module, a circuitry module, a battery module and a variable form keyboard, the variable form keyboard configurable either as a short form keyboard or a long form keyboard. The long form housing frame securely frames the handheld computing modules when the variable form keyboard is configured as the long form keyboard, and the short form housing frame securely frames the plurality of computing modules when the variable form keyboard is configured as the short form keyboard.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Inventors: Michael GLEESON, Dinesh Nataly GANDHI
  • Patent number: 7957126
    Abstract: A transmission structure disposed in an input device of a data processing system is disclosed. The transmission structure includes a fixed plate, a movable plate, a connection member, and a motor driving unit. The fixed plate is mounted in the input device and includes a set of grooves extending toward a first direction. The movable plate is movably disposed on a first surface of the fixed plate and includes a set of first pillars to be disposed in the set of grooves. The connection member is connected to the movable plate. The motor driving unit is connected to the connection member and drives the movable plate through the connection member to move toward the first direction or a second direction opposite to the first direction.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: June 7, 2011
    Assignee: Darfon Electronics Corp.
    Inventor: Yi Chen Wang
  • Patent number: 7952860
    Abstract: A mobile terminal is provided in which gaps between keys provided in a second main body change as a first main body moves. The mobile terminal includes a first main body; a second main body having a plurality of keys; and a hinge connecting the first main body and the second main body, wherein when the first main body opens from the second main body, the second main body extends and gaps between the plurality of keys are widened, and when the first main body closes on the second main body, the second main body retracts and the gaps between the plurality of keys are narrowed. Therefore, when the mobile terminal is opened, gaps between keys provided in the mobile terminal are widened and thus a user can more conveniently use the keys provided in the mobile terminal.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Jong Ha, Soon Ik Cho, Seung Woo Lim, Hee Kwan Kim
  • Patent number: 7948475
    Abstract: A key control apparatus for a portable terminal including a first housing with first and second display units and a second housing with first and second key input units is provided. The key control apparatus includes a first key input unit, a second key input unit and a control unit. The first key input unit includes a plurality of touch-sensitive touch keys for implementing given functions, one or more mechanical keys, and a plurality of sensors for sensing the touching of the touch keys and implementing a scroll function. The second key input unit includes a plurality of mechanical keys for implementing given functions or functions corresponding to the keys arranged on the first key input unit. The control unit controls the apparatus so that when a touch key in the first key input unit is touched, a function given to the touch key is implemented.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: May 24, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seng-Tai Lee, Seok-Hyo Park
  • Patent number: 7942374
    Abstract: A keyboard support including: a workstation engaging member adapted to be attached to an underside of the work surface; a keyboard engaging member disposed forwardly of the workstation engaging member for supporting a keyboard; a linkage assembly mechanically coupling and providing relative movement between the workstation engaging member and the keyboard engaging member; and a tilt gauge assembly to indicate a tilt angle of the keyboard engaging member, the tilt gauge assembly including a parallelogram linkage defining a longitudinal axis, the parallelogram linkage including stationary member affixed to the keyboard engaging member that pivots with the keyboard engaging member with respect to the upper connector and a movable member tangent to the lower connector, wherein changing the tilt angle of the keyboard engaging member causes a distance along the longitudinal axis between the stationary member and the movable member to change.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: May 17, 2011
    Assignee: Workrite Ergonomics, Inc.
    Inventors: Derek Timm, Giancarlo A. Giustina, Matthew R. Vargas
  • Publication number: 20110102995
    Abstract: An electronic device includes a lid and a main body rotatably connected to each other. The main body includes a lower housing, an upper housing, a keyboard, a cover disposed on the upper housing, and a driving member. The keyboard is disposed on the upper housing and includes a first keyboard and a second keyboard coupled to each other. The driving mechanism is used to drive the first keyboard and the second keyboard to switch between a fist position and a second position. In the first state, a portion of the first keyboard is shielded by the cover, and in the second state, the first keyboard and the second keyboard are totally exposed.
    Type: Application
    Filed: August 30, 2010
    Publication date: May 5, 2011
    Applicants: FU TAI HUA INDUSTRY (SHENZHEN) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: WEI WU, XIN YANG
  • Patent number: 7932890
    Abstract: An electronic device includes a casing having a display part (2) provided with an image display panel (1), a operation part (4) provided with operation keys (3), and a joint part (5) that connects together the display part and the operation part, and a lightguide plate (6) disposed in the casing. The lightguide plate is an edge-light type lightguide plate having a display illuminating part (6a) illuminating the image display panel, a key illuminating part (6b) illuminating the operation keys, and a connecting part (6c) that connects together the display illuminating part and the key illuminating part and that guides light therebetween. The lightguide plate is deformable in accordance with the deformation of the casing.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: April 26, 2011
    Assignee: Citizen Electronics Co., Ltd.
    Inventors: Akira Onikiri, Daisaku Okuwaki, Yasuaki Kayanuma
  • Publication number: 20110063788
    Abstract: A portable electronic device includes a housing, a resisting member and a keypad. The housing has a receiving recess running through two sides of the housing. The resisting member is formed on the bottom of the receiving recess. The keypad has a plurality of receiving cavities formed at the bottom surface. The keypad is hold by engagement of a receiving cavity with the resisting member and can slid by pushing of the keypad until another receiving cavity receives the resisting member.
    Type: Application
    Filed: April 21, 2010
    Publication date: March 17, 2011
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., CHI MEI COMMUNICATION SYSTEMS, INC.
    Inventor: JUN LI
  • Publication number: 20110051347
    Abstract: A mobile terminal according to the present invention includes: a first housing; a second housing overlaid on the first housing; and a sliding support mechanism that supports the second housing in a manner as to slide with respect to the first housing. A plurality of input portions covered over by the second housing when the second housing is placed at a first position is provided on the first housing. The position of the second housing, that is viewed in the plane from above, can be switched by the sliding support mechanism among: the first position; a second position which is located at an upper right position with respect to the first position, and at which a part of the plurality of input portions is exposed; and a third position which is located at an upper left position with respect to the first position, and at which a part of the plurality of input portions that is different from the part exposed in case of the second position is exposed.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Applicant: FUNAI ELECTRIC CO., LTD. a corporation of Japan
    Inventors: Daisuke YAMAGIWA, Yasuhiro Shingin
  • Patent number: 7894184
    Abstract: A portable electronic device includes a screen module, a main body module and an input/output module. The screen module is pivotally connected with the body module. The input/output module is electrically connected with the main body module. An actuating element is disposed at a bottom of the screen module. When the screen module is opened respectively to the body module to be opened, the actuating element is driven to swing to push a front end of the input/output module to be lifted to drive the input/output module to be out of a state that the keyboard abuts against the main body module. Therefore, the portable electronic device is easy to be operated. Moreover, the heat dissipation is improved to keep the internal temperature low and reduce energy consumption.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: February 22, 2011
    Assignee: Asustek Computer Inc.
    Inventors: Xiaonan Huang, Alec Wong, Chia-cheng Shih, Hung-Hsiang Chen, Daniel Alenquer, Tan-Wee Kiat, Luke Goh, Lionel Wong, Wean-Fong Loi, Hsien-Chih Wu, Chiu-Lang Huang
  • Patent number: 7889483
    Abstract: An electronic device includes a bottom cover, and a display unit, a main keyboard, and at least one secondary keyboards mounted on the bottom cover respectively. The bottom cover defines a first guiding slot. The display unit defines at least one second guiding slot. The second guiding slot crosses the first guiding slot and an angle between the first guiding slot and the second guiding slot is less than 90 degrees. Each of the secondary keyboard includes a positioning shaft passing through the first guiding slot and one of the second guiding slot. When the electronic device is closed, the main keyboard and the secondary keyboard are positioned between the display unit and the bottom cover. When the electronic device is opened, the second guiding slot drives the positioning shaft to slide along the first guiding slot, thus to expose the secondary keyboard and the main keyboard accordingly.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 15, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Kim-Yeung Sip, Song-Ling Yang
  • Patent number: 7881049
    Abstract: The invention discloses a transmission apparatus set in a data processing system. The data processing system includes a display device and an input device. The display device is connected to the input device through a connecting member. The transmission apparatus includes a pivot, a fixed plate, a movable plate, a sliding member, a pulley, and a cable. When the pivot revolves along with the connecting member, the pivot drives the cable to slide the sliding member, and then moves the movable plate along with a predetermined direction.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: February 1, 2011
    Assignee: Darfon Electronics Corp.
    Inventor: Yi-Chen Wang
  • Patent number: 7846027
    Abstract: A handheld electronic device, the device comprising a housing and a retractable handle, the device being arranged to allow the handle to be retracted into the housing along a sliding axis to provide a retracted handle position and extended out of the housing along the sliding axis to provide an extended handle position, and wherein the handle is arranged to be formable to be held by a user in the extended position such that the holding axis of the handle in the extended position is offset from the sliding axis.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: December 7, 2010
    Assignee: Nokia Corporation
    Inventor: Axel E. Meyer
  • Patent number: 7821781
    Abstract: A lighting control console for controlling a lighting control system including a digital processor and a digital storage unit. The lighting control console can comprise several control elements, in particular keys, linear regulators and/or induction regulators, which are arranged on the top of the casing and can be used to enter operating commands. The lighting control console encompasses a display device with at least one screen that is arranged on the top of the casing. The data for the user can be graphically displayed on the screen. The lighting control console can include a casing provided with at least one cover, which can be adjusted between a closed position and an open position, wherein the cover covers at least one extra control element arranged in or on the casing in its closed position, thereby protecting the extra control element against external influences in its closed position.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: October 26, 2010
    Assignee: MA Lighting Technology GmbH
    Inventor: Michael Adenau
  • Patent number: 7764489
    Abstract: Disclosed is a multimedia portable electronic device including a first housing, a second housing coupled to the first housing so as to rotate about a first hinge axis, a third housing adapted to slide while facing the first housing, a fourth housing connected to the third housing so as to rotate about a second hinge axis to be folded/unfolded, a connection device positioned between the first and fourth housings so that the connection device rotates about a third hinge axis to slide the third housing when the fourth housing is folded on or unfolded from the third housing, and a sliding device positioned between the first and third housings so that the third housing can slide.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: July 27, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Kyun Kim, Jong-Kwon Ko, Young-Wook Sohn, Sang-Il Park
  • Patent number: 7733637
    Abstract: A keyboard sled adapted to communicatively interact with a portable computer system. In one embodiment, the keyboard sled is comprised of an integral receiving portion adapted to mechanically and electronically receive a portable computer system. An interface connector is disposed within the receiving portion and adapted to provide a communicative link between the keyboard sled and a portable computer system, when a portable computer system has been inserted in the receiving portion. The keyboard sled further has at least one mounting hook disposed within the receiving portion for providing positive retention of a portable computer system when coupled with the keyboard sled. A keyboard portion also present on the keyboard sled and also coupled with the interface connector provides input keys. The keyboard sled is also comprised of an integral data storage access slot which is adapted to provide access to a data storage device receptacle of the portable computer system.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: June 8, 2010
    Assignee: Palm, Inc.
    Inventor: Lawrence Lam
  • Publication number: 20100014236
    Abstract: A keypad lifting mechanism includes a first board, a guiding piece, a second board and a third board. The guiding piece defines a guiding hole. The guiding hole includes a transverse end portion. The second board includes at least one protrusion. A guiding post is formed on the second board for engaging in the guiding hole of the guiding piece. The third board includes at least one slope corresponding to the at least one protrusion. When the guiding piece is pushed away from the third board, the guiding post slides along the guiding hole of the guiding piece. The second board moves with the guiding piece when the guiding post reaching the transverse end portion of the guiding hole. The third board is raised by the at least one slope sliding up along the at least one protrusion of the second board.
    Type: Application
    Filed: June 15, 2009
    Publication date: January 21, 2010
    Applicants: SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD., FIH (HONG KONG) LIMITED
    Inventors: ZHI-GANG ZOU, ZHI-GANG PENG, ZHI-LAN CHEN, TAO YIN, ZHI-QIANG SHI
  • Patent number: 7639479
    Abstract: A portable electronic device includes a base, a cover and a connecting element. The cover includes a track and a rotating portion next to the track. The connecting element is connected to the base wherein the track is movable with respect to the connecting element and is connected to the connecting element. When the connecting element is in the rotating portion, the cover is rotatable with respect to the base.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: December 29, 2009
    Assignee: HTC Corporation
    Inventors: I-Chen Chuang, San-Chi Ho, Ko-Min Wang
  • Patent number: 7633745
    Abstract: An electronic device includes a movable unit having a top surface; a main body in which the movable unit is stowed and from which the movable unit is deployed by sliding the movable unit, the main body having a first surface opposed to the top surface when the movable unit is in a stowed state and in a deployed state; and a changing mechanism which changes a distance between the top surface and the first surface during a sliding operation of the movable unit so that the top surface and the first surface during the sliding operation are separated from each other by a distance greater than a distance between the top surface and the first surface in the stowed state and the deployed state of the movable unit.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 15, 2009
    Assignee: Sony Corporation
    Inventors: Kenji Sakakibara, Naka Shibata
  • Patent number: 7619880
    Abstract: A drainage structure is provided for a portable electronic device, such as a portable computer. The drainage structure includes an inclination formed on a top surface of a body of the portable electronic device to support a keyboard device in an inclined manner so that water spilled on the keyboard device or the top surface can be expelled out of the electronic device by gravity. If desired, height adjusting units can be arranged between the keyboard device and the top surface of the body to selectively maintain the keyboard in a horizontal condition. A drain hole or groove can be selectively formed in the body of the electronic device to facilitate drainage of water.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: November 17, 2009
    Assignee: Getac Technology Corporation
    Inventors: Pei-Fang Liang, Ping-Wei Lee
  • Publication number: 20090279239
    Abstract: A mobile terminal is provided in which gaps between keys provided in a second main body change as a first main body moves. The mobile terminal includes a first main body; a second main body having a plurality of keys; and a hinge connecting the first main body and the second main body, wherein when the first main body opens from the second main body, the second main body extends and gaps between the plurality of keys are widened, and when the first main body closes on the second main body, the second main body retracts and the gaps between the plurality of keys are narrowed. Therefore, when the mobile terminal is opened, gaps between keys provided in the mobile terminal are widened and thus a user can more conveniently use the keys provided in the mobile terminal.
    Type: Application
    Filed: April 22, 2009
    Publication date: November 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho Jong HA, Soon Ik CHO, Seung Woo LIM, Hee Kwan KIM