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Park Yong Cheol, Kim Sung Dae: Write-once type optical disc, and method and apparatus for managing defective areas on write-once type optical disc. LG Electronics, BAHNG Hae Cheol, April 8, 2004: WO/2004/029939 (7 worldwide citation)

A recording medium of writable once type, and a method and apparatus for managing a defective area on the recording medium are provided. The method includes detecting an existence of a defective area within a data area of the recording medium once data are written onto the data area in a data writin ...


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Park Yong Cheol, Kim Sung Dae: Optical disc of write once type, method, and apparatus for managing defect information on the optical disc. LG Electronics, November 30, 2005: EP1599869-A1 (6 worldwide citation)

An optical disc of write once type, a method and an apparatus of managing defect information on the optical disc of write once type, e.g., a BD-WO, are provided with a temporary defect management area (TDMA). The method includes preparing the temporary defect management area (TDMA) in which a tempor ...


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Park Yong Cheol, Kim Sung Dae: Optical disc, method and apparatus for managing a defective area on an optical disc. LG Electronics, BAHNG Hae Cheol, August 12, 2004: WO/2004/068477 (5 worldwide citation)

A method and apparatus for managing a defective area on an optical recording medium of writable once type, permits more efficient writing and management of defect list information or temporary defect list information for managing the defective area in a minimum recording size. The method includes wr ...


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Kim Sung Dae, Han Cheol Young, Jo Hae Seog, Yoon Young Min: Image forming apparatus with a cam shaft for selectively operating one of a plurality of developing units. Samsung Electronics, October 25, 2006: EP1715390-A1 (4 worldwide citation)

An electrophotographic image forming apparatus is provided that includes a plurality of developing units (4), a cam shaft (120), and a plurality of cams (131) disposed on the cam shaft (120) corresponding to the respective developing units (4). A power transmitting device disposed between the develo ...


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Park Yong Cheol, Kim Sung Dae: Recording medium having data structure for managing at least a data area of the recording medium and recording and reproducing methods and apparatuses. LG Electronics, Park Yong Cheol, Kim Sung Dae, BAHNG Hae Cheol, September 10, 2004: WO/2004/077412 (2 worldwide citation)

The data structure on the recording medium includes a temporary defect management area storing a data block. The data block includes a space bit map and a temporary definition structure. The space bit map indicates recordation status of the data area, and the temporary definition structure provides ...


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Kim Sung Dae, Han Cheol Young, Yoon Young Min: High voltage switching device and multi-path image forming apparatus employing the same. Samsung Electronics, October 12, 2006: KR1020050040144 (1 worldwide citation)

PURPOSE: A high voltage switching device and a multi-path image forming apparatus employing the high voltage switching device are provided to switch a high-voltage current transmitted to developing devices with reliability and reduce the size and price of the image forming apparatus. CONSTITUTION: A ...


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Park Yong Cheol, Kim Sung Dae: Defect management method for optical recording medium and optical recording medium using the same. LG Electronics, January 1, 2005: TW200501068 (1 worldwide citation)

A method for defect management for an optical recording medium uses a plurality of temporary defect management areas (TDMAs), so that defect management information can be recorded in prescribed areas of an optical recording medium, such as a write-once Blu-ray disc, to include information specifying ...


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Kim Sung Dae, Yoon Young Min: Toner supplying device, developing device and image forming apparatus having toner supplying device. Samsung Electronics, February 27, 2008: EP1892585-A2 (1 worldwide citation)

A toner supplying device which is capable of individually supplying toners of different colors. The toner supplying device can include a driving source (10); a plurality of toner receptacles (20) in which different color toners are contained and respective toner discharging members are provided in o ...


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CHO HYUN KI, KIM SUNG DAE, CHOI BONG HWAN, CHAE SEOK HEON, LIM SUNG HOON: Image forming apparatus and control method thereof, Bilderzeugungsvorrichtung und Steuerverfahren dafür, Appareil de formation dimages et son procédé de commande. Samsung Electronics, May 4, 2011: EP2317395-A2 (1 worldwide citation)

To restrict a period velocity change of a photoconductor that is an immediate cause of a color registration error, a gap change of a color registration error detection pattern caused by a linear velocity change of the photoconductor is acquired and a linear velocity change of the photoconductor is r ...



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