Patents by Inventor Seung-deog An
Seung-deog An 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: 9474060Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: GrantFiled: June 1, 2015Date of Patent: October 18, 2016Assignee: LG Electronics Inc.Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyon Yoon, Dae Won Lee, Joon Kui Ahn
-
Publication number: 20150264672Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: ApplicationFiled: June 1, 2015Publication date: September 17, 2015Inventors: Seung Deog CHOI, Ki Jun KIM, Suk Hyon YOON, Dae Won LEE, Joon Kui AHN
-
Patent number: 9071400Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: GrantFiled: June 28, 2012Date of Patent: June 30, 2015Assignee: LG Electronics Inc.Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyon Yoon, Dae Won Lee, Joon Kui Ahn
-
Publication number: 20120314627Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: ApplicationFiled: June 28, 2012Publication date: December 13, 2012Inventors: Seung Deog CHOI, Ki Jun KIM, Suk Hyon YOON, Dae Won LEE, Joon Kui AHN
-
Patent number: 8254295Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: GrantFiled: August 26, 2009Date of Patent: August 28, 2012Assignee: LG Electronics Inc.Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyan Yoon, Dae Won Lee, Joon Kui Ahn
-
Patent number: 8145074Abstract: A system and method are provided for controlling an image forming apparatus and include a supplies information storage unit, which is included in supplies of an image forming apparatus and which has a writable first storage area and a second storage area providing write protection, and which stores information regarding the supplies in the first storage area, a replacement time detecting unit, which detects a replacement time of the supplies and outputs the sensing result, and an information controller, which in response to the result output from the replacement time detecting unit, stores the information stored in the first storage area in the second storage area, sets the write protection, and deletes the information stored in the first storage area. Accordingly, illegally recycled supplies can be prevented from being installed or used.Type: GrantFiled: July 20, 2006Date of Patent: March 27, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-hwan Kim, Seung-deog An
-
Patent number: 8054767Abstract: A method of transmitting scheduling information in time-division-duplex(TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: GrantFiled: April 10, 2008Date of Patent: November 8, 2011Assignee: LG Electronics Inc.Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyon Yoon, Dae Won Lee, Joon Kui Ahn
-
Publication number: 20100027447Abstract: A method of transmitting scheduling information in time-division-duplex (TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: ApplicationFiled: August 26, 2009Publication date: February 4, 2010Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyan Yoon, Dae Won Lee, Joon Kui Ahn
-
Publication number: 20100027446Abstract: A method of transmitting scheduling information in time-division-duplex(TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe is reserved for downlink transmission and an uplink subframe is reserved for uplink transmission, and transmitting scheduling information on a downlink control channel in a downlink subframe, the scheduling information comprising an uplink indicator and uplink resource assignment, the uplink indicator indicating which at least one uplink subframe the uplink resource assignment is valid for. Data can be efficiently transmitted by using an uplink indicator which indicates a specific location of a subframe.Type: ApplicationFiled: April 10, 2008Publication date: February 4, 2010Inventors: Seung Deog Choi, Ki Jun Kim, Suk Hyon Yoon, Dae Won Lee, Joon Kui Ahn
-
Patent number: 7454147Abstract: Disclosed is a printed circuit board comprising a contact terminal, which prevents a poor contact and reduces a manufacturing cost, and an image forming apparatus having the same. The printed circuit board comprises a circuit part for controlling and processing an operation of electronic appliance, and a large-area contact terminal formed by a group of small-area terminals for electric connection with external device. The small-area terminals can be formed in various types, respectively having regular size and shape and being distanced a predetermined interval. Accordingly, unevenness of the large-area contact terminal surface caused by soldering is prevented since a plurality of small-area terminals constitute a unit contact terminal of over a predetermined size. Therefore, quality of contact with external terminal improves. Further, manufacturing cost is reduced, and the manufacturing process becomes simple.Type: GrantFiled: February 8, 2007Date of Patent: November 18, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-deog An, Min-seon Kim
-
Patent number: 7376367Abstract: Provided is a method of controlling a fusing speed of an image forming apparatus. Determination is made as to whether a sheet of paper to be printed is a special-purpose sheet. Determination is made as to whether a length 1 of the sheet of paper is shorter than a distance L1 between a second transfer roller and a fusing unit. Determination is also made as to whether the length 1 of the sheet of paper is shorter than a distance L0 between a first transfer roller and the second transfer roller. Determination is made as to whether the length 1 of the sheet of paper is longer than the distance L0 between the first transfer roller and the second transfer roller.Type: GrantFiled: June 13, 2006Date of Patent: May 20, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Gun-Ho Kim, Cheol-ju Yang, Seung-deog An
-
Patent number: 7308221Abstract: A high developing voltage supply apparatus includes solenoid power switches, and a high developing voltage driver selectively outputting a solenoid driving signal to close one of the solenoid power switches to electrically close a corresponding mechanical contact, applying a high developing voltage to one of color development rollers corresponding to the mechanical contact closed and Kased on an image to be printed. A high developing voltage supply supplies the high developing voltage to developing roll shafts of the other color development rollers to stabilize potentials of the developing roll shafts, or, in the alternative, the high developing voltage supply apparatus may include a voltage supply supplying a self-biased voltage to the other color development rollers using the high developing voltage formed with a DC voltage VDC and an AC voltage VAC superimposed.Type: GrantFiled: June 23, 2003Date of Patent: December 11, 2007Assignee: Samsung Electronics, Co., Ltd.Inventors: Seung-deog An, Min-seon Kim, Woo-jung Shim
-
Patent number: 7305196Abstract: An apparatus for and a method of controlling a high voltage in an image forming apparatus using the high voltage with a high alternating current voltage superimposed on a high direct current voltage. The apparatus includes: a high alternating current voltage output unit outputting the high alternating current voltage; a high direct current voltage output unit outputting the high direct current voltage; and a controlling unit controlling the high alternating current voltage output unit and the high direct current voltage output unit such that the high alternating current voltage is output before the high direct current voltage when the high voltage is required for printing.Type: GrantFiled: December 20, 2004Date of Patent: December 4, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Min-seon Kim, Seung-deog An
-
Publication number: 20070172264Abstract: A printing apparatus and method of detecting a color registration error are provided. A detecting unit detects registration marks comprising a plurality of toner marks. The registration marks are formed on a transfer medium to detect color registration errors of color images. Each toner mark of the registration marks includes a first component inclined with respect to a main scanning direction and a sub-scanning direction, a second component spaced apart from the first component in the sub-scanning direction, and inclined with respect to the first component, and a third component parallel to one of the first component and the second component.Type: ApplicationFiled: October 23, 2006Publication date: July 26, 2007Inventor: Seung-deog An
-
Publication number: 20070134007Abstract: Disclosed is a printed circuit board comprising a contact terminal, which prevents a poor contact and reduces a manufacturing cost, and an image forming apparatus having the same. The printed circuit board comprises a circuit part for controlling and processing an operation of electronic appliance, and a large-area contact terminal formed by a group of small-area terminals for electric connection with external device. The small-area terminals can be formed in various types, respectively having regular size and shape and being distanced a predetermined interval. Accordingly, unevenness of the large-area contact terminal surface caused by soldering is prevented since a plurality of small-area terminals constitute a unit contact terminal of over a predetermined size. Therefore, quality of contact with external terminal improves. Further, manufacturing cost is reduced, and the manufacturing process becomes simple.Type: ApplicationFiled: February 8, 2007Publication date: June 14, 2007Inventors: Seung-deog An, Min-seon Kim
-
Patent number: 7192286Abstract: Disclosed is a printed circuit board comprising a contact terminal, which prevents a poor contact and reduces a manufacturing cost, and an image forming apparatus having the same. The printed circuit board comprises a circuit part for controlling and processing an operation of electronic appliance, and a large-area contact terminal formed by a group of small-area terminals for electric connection with external device. The small-area terminals can be formed in various types, respectively having regular size and shape and being distanced a predetermined interval. Accordingly, unevenness of the large-area contact terminal surface caused by soldering is prevented since a plurality of small-area terminals constitute a unit contact terminal of over a predetermined size. Therefore, quality of contact with external terminal improves. Further, manufacturing cost is reduced, and the manufacturing process becomes simple.Type: GrantFiled: August 13, 2004Date of Patent: March 20, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-deog An, Min-seon Kim
-
Patent number: 7177551Abstract: The present invention relates to an apparatus for managing consumables of an image forming apparatus widely used in printers, multi-function printers, and so on. The apparatus of the present invention includes memory devices provided in the consumables for writing and reading data related to the consumables and for managing the consumables. As such the present invention uses less signal lines for a development cartridge, informs a user to refill the consumables, and is less sensitive to noise due to the digital management of consumables.Type: GrantFiled: September 7, 2004Date of Patent: February 13, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Yoon-seop Eom, Seung-deog An
-
Publication number: 20070019980Abstract: A developing apparatus and method are provided. In one exemplary embodiment the apparatus includes a voltage supply portion, a voltage switching portion and a central processing portion for controlling the switching. The voltage supply portion supplies a voltage to a plurality of developers. The voltage switching portion provides a voltage supplied by the voltage supply portion to one of the developers through switching operation and grounds the developers other than the developer to which the voltage is supplied. The central processing portion controls the switching operation of the voltage switching portion. Also provided is a method of supplying voltage to a developer apparatus.Type: ApplicationFiled: July 19, 2006Publication date: January 25, 2007Inventors: Min-seon Kim, Seung-deog An
-
Publication number: 20070019970Abstract: A system and method are provided for controlling an image forming apparatus and include a supplies information storage unit, which is included in supplies of an image forming apparatus and which has a writable first storage area and a second storage area providing write protection, and which stores information regarding the supplies in the first storage area, a replacement time detecting unit, which detects a replacement time of the supplies and outputs the sensing result, and an information controller, which in response to the result output from the replacement time detecting unit, stores the information stored in the first storage area in the second storage area, sets the write protection, and deletes the information stored in the first storage area. Accordingly, illegally recycled supplies can be prevented from being installed or used.Type: ApplicationFiled: July 20, 2006Publication date: January 25, 2007Inventors: Chang-hwan Kim, Seung-deog An
-
Publication number: 20060285866Abstract: Provided is a method of controlling a fusing speed of an image forming apparatus. Determination is made as to whether a sheet of paper to be printed is a special-purpose sheet. Determination is made as to whether a length l of the sheet of paper is shorter than a distance L1 between a second transfer roller and a fusing unit. Determination is also made as to whether the length l of the sheet of paper is shorter than a distance L0 between a first transfer roller and the second transfer roller. Determination is made as to whether the length l of the sheet of paper is longer than the distance LO between the first transfer roller and the second transfer roller.Type: ApplicationFiled: June 13, 2006Publication date: December 21, 2006Inventors: Gun-Ho Kim, Cheol-ju Yang, Seung-deog An