Patents by Inventor Myong Gu Lee
Myong Gu Lee 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).
-
Patent number: 7603584Abstract: A recording medium and apparatus and method for managing defective areas are discussed. According to an embodiment a controller determining whether or not to replace a defective block with a replacement block when a writing or reading data to or from the optical recording medium, based upon a data type to be written or read, and creating a defect list, the defect list including information to indicate whether or not the defective block is replaced with a replacement block; and a writing reading unit, coupled to the controller, to write or read the data to or from the optical recording medium and storing the defect list to a defect management area of the optical recording medium, according to a control of the controller.Type: GrantFiled: August 17, 2007Date of Patent: October 13, 2009Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Patent number: 7558163Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: March 16, 2004Date of Patent: July 7, 2009Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Patent number: 7525882Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: July 27, 2004Date of Patent: April 28, 2009Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Patent number: 7441149Abstract: The present invention relates to a recording medium and apparatus and method for managing a defective area of the recording medium. According to an embodiment, the method includes (a) determining whether there is an available replacement block in a spare area and a found defective block is controlled by a linear replacement algorithm; (b) managing a defective data block based on the determination, such that the defective data block is replaced with the replacement block of the spare area if there is the available replacement block and the found defective data block is controlled by the linear replacement algorithm; and (c) recording a defect list to the recording medium, wherein the defect list includes first position information specifying the location of defective data block, second position information specifying the location of replacement block and identification information specifying that the defective data block is replaced.Type: GrantFiled: December 4, 2006Date of Patent: October 21, 2008Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Patent number: 7430155Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: March 7, 2006Date of Patent: September 30, 2008Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Patent number: 7380162Abstract: A recording medium and apparatus and method for managing defective areas are discussed. According to an embodiment, the method includes: (a) determining whether or not a real time recording is required; and (b) controlling a recording operation based on the determination such that (i) a defective block found during real time recording is not replace with a replacement block of a spare area, while storing a status information identifying that the defective block is not replaced, and (ii) a found defective block is replaced with a replacement block of the spare area if the real time recording is not required as a result of the determination, while storing a status information identifying that the defective block is replaced with the replacement block and storing a location of the replacement block.Type: GrantFiled: November 20, 2006Date of Patent: May 27, 2008Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong-Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Patent number: 7333407Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: March 7, 2006Date of Patent: February 19, 2008Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Publication number: 20070294571Abstract: A system of recording or reading data are discussed. According to an embodiment, the system includes: a host device transmitting a write or read command and data to be written or receiving data based on the read command; and a recording/reproducing device, operatively coupled to the host device via interface, controlling a write or read operation in response to the write or read command the from the host device. The recording/reproducing device includes, a pickup for writing or reading data to or from medium, and a controller for determining whether the data requires a real time recording or producing, controlling a recording or reading operation such that a defective block is replaced with a spare block of the spare area, based upon the determination.Type: ApplicationFiled: August 17, 2007Publication date: December 20, 2007Inventors: Yong Park, Myong-Gu Lee, Jong Shin, Kyu Jeong
-
Patent number: 7206267Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: July 2, 2004Date of Patent: April 17, 2007Assignee: Lexmark International, Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Publication number: 20070067671Abstract: A recording medium and apparatus and method for managing defective areas are discussed. According to an embodiment, the method includes: (a) determining whether or not a real time recording is required; and (b) controlling a recording operation based on the determination such that (i) a defective block found during real time recording is not replace with a replacement block of a spare area, while storing a status information identifying that the defective block is not replaced, and (ii) a found defective block is replaced with a replacement block of the spare area if the real time recording is not required as a result of the determination, while storing a status information identifying that the defective block is replaced with the replacement block and storing a location of the replacement block.Type: ApplicationFiled: November 20, 2006Publication date: March 22, 2007Inventors: Yong Park, Myong-Gu Lee, Jong Shin, Kyu Jeong
-
Patent number: 7146527Abstract: The present invention relates to an optical recording medium and optical recording medium record/playback apparatus and method, for managing defective areas in a rewritable optical recording medium. Particularly, the present invention adds a linear replacement control (LRC) bit to a secondary defective list (SDL) entry to discriminate a defective block information that is listed at the SDL entry according to a linear replacement algorithm from a defective block information that is listed at the SDL entry according to a skipping algorithm. This allows the optical recording medium record/playback apparatus to transmit correct information to a host.Type: GrantFiled: May 8, 2003Date of Patent: December 5, 2006Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Patent number: 7139935Abstract: The present invention relates to an optical recording medium and optical recording medium record/playback apparatus and method, for managing defective areas in a rewritable optical recording medium. Particularly, the present invention adds a linear replacement control (LRC) bit to a secondary defective list (SDL) entry to discriminate a defective block information that is listed at the SDL entry according to a linear replacement algorithm from a defective block information that is listed at the SDL entry according to a skipping algorithm. This allows the optical recording medium record/playback apparatus to transmit correct information to a host.Type: GrantFiled: May 8, 2003Date of Patent: November 21, 2006Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Publication number: 20040264318Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: ApplicationFiled: July 27, 2004Publication date: December 30, 2004Applicant: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Publication number: 20040246850Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: ApplicationFiled: July 2, 2004Publication date: December 9, 2004Applicant: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Publication number: 20040174784Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: ApplicationFiled: March 16, 2004Publication date: September 9, 2004Applicant: LG ELECTRONICS INC.Inventors: Yong Cheol Park, Myong Gu Lee
-
Patent number: 6771575Abstract: A defect area management system for an optical storage medium including a management part producing a defect area management signal for real-time processing and transmitting the signal along with data to be written; and a write part executing a defect area management of the optical storage media, writing the data, applied by the defect area management signal from the management part, into the optical storage medium so that whenever a light pickup meets a defect block at the time of writing data requiring the real-time processing into the optical storage medium, it does not have to be moved to the spare area, thus reducing the time it takes to move the light pickup and removing shortcomings of the real-time processing.Type: GrantFiled: June 30, 1999Date of Patent: August 3, 2004Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee
-
Publication number: 20030196133Abstract: The present invention relates to an optical recording medium and optical recording medium record/playback apparatus and method, for managing defective areas in a rewritable optical recording medium. Particularly, the present invention adds a linear replacement control (LRC) bit to a secondary defective list (SDL) entry to discriminate a defective block information that is listed at the SDL entry according to a linear replacement algorithm from a defective block information that is listed at the SDL entry according to a skipping algorithm. This allows the optical recording medium record/playback apparatus to transmit correct information to a host.Type: ApplicationFiled: May 8, 2003Publication date: October 16, 2003Applicant: LG ELECTRONICS INC.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Publication number: 20030191981Abstract: The present invention relates to an optical recording medium and optical recording medium record/playback apparatus and method, for managing defective areas in a rewritable optical recording medium. Particularly, the present invention adds a linear replacement control (LRC) bit to a secondary defective list (SDL) entry to discriminate a defective block information that is listed at the SDL entry according to a linear replacement algorithm from a defective block information that is listed at the SDL entry according to a skipping algorithm. This allows the optical recording medium record/playback apparatus to transmit correct information to a host.Type: ApplicationFiled: May 8, 2003Publication date: October 9, 2003Applicant: LG ELECTRONICS, INC.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong
-
Patent number: 6418100Abstract: Method for formatting, and managing a defective area of, a rewritable optical recording medium when a secondary defect list (SDL) is converted into a primary defect list (PDL) without certification by converting only sector numbers of first sectors of the defective blocks listed on the SDL into the PDL. If the defective sector thus listed of the PDL is encountered during writing/reading thereafter, a block (=16 sectors) containing the defective sector is subjected to slipping replacement.Type: GrantFiled: October 20, 1999Date of Patent: July 9, 2002Assignee: LG Electronics Inc.Inventors: Yong Cheol Park, Myong Gu Lee, Jong In Shin, Kyu Hwa Jeong, Sung Dae Kim