Patents by Inventor Byung-hun Han
Byung-hun Han 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: 11991150Abstract: Disclosed herein are an apparatus and method for providing a remote work environment. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program performs Virtual Private Network (VPN) authentication in response to a request for remote access to a work network from a user terminal, performs user authentication in order to connect the user terminal that succeeds in VPN authentication to the work network, decrypts the encrypted user data area of the user terminal that is connected to the work network, and provides the remote work environment to the user terminal based on the user data area through the work network.Type: GrantFiled: September 7, 2021Date of Patent: May 21, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gak-Soo Lim, Sung-Jin Kim, Jung-Hwan Kang, Seung-Hun Han, Byung-Joon Kim
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Patent number: 11586079Abstract: A film type package includes: a base film having first and second sides; a driver integrated circuit mounted on the base film; first connection pads disposed on a first area of the base film that is adjacent to the first side of the base film, and configured to be connected to a first external circuit; second connection pads disposed on a second area of the base film that is adjacent to the second side of the base film, and configured to be connected to a second external circuit; first signal lines disposed on the base film, and connecting the driver integrated circuit and the first connection pads; second signal lines disposed on the base film, and connecting the driver integrated circuit and the second connection pads; and a plurality of test lines extending from the driver integrated circuit to the first side of the base film.Type: GrantFiled: December 22, 2021Date of Patent: February 21, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hun Han, Jung Eun Koo, So Young Lim
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Publication number: 20220113577Abstract: A film type package includes: a base film having first and second sides; a driver integrated circuit mounted on the base film; first connection pads disposed on a first area of the base film that is adjacent to the first side of the base film, and configured to be connected to a first external circuit; second connection pads disposed on a second area of the base film that is adjacent to the second side of the base film, and configured to be connected to a second external circuit; first signal lines disposed on the base film, and connecting the driver integrated circuit and the first connection pads; second signal lines disposed on the base film, and connecting the driver integrated circuit and the second connection pads; and a plurality of test lines extending from the driver integrated circuit to the first side of the base film.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: Samsung Electronics Co., Ltd.Inventors: Byung Hun HAN, Jung Eun KOO, So Young LIM
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Patent number: 11231626Abstract: A film type package includes: a base film having first and second sides; a driver integrated circuit mounted on the base film; first connection pads disposed on a first area of the base film that is adjacent to the first side of the base film, and configured to be connected to a first external circuit; second connection pads disposed on a second area of the base film that is adjacent to the second side of the base film, and configured to be connected to a second external circuit; first signal lines disposed on the base film, and connecting the driver integrated circuit and the first connection pads; second signal lines disposed on the base film, and connecting the driver integrated circuit and the second connection pads; and a plurality of test lines extending from the driver integrated circuit to the first side of the base film.Type: GrantFiled: January 22, 2019Date of Patent: January 25, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hun Han, Jung Eun Koo, So Young Lim
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Patent number: 11170683Abstract: An operating method of a display driving integrated circuit (DDIC) includes correcting first image data using correction data in a first operating mode. The first image data is received from a processor via an interface, and the correction data is stored in a first memory included in the DDIC. The method further includes storing second image data received from the processor in the first memory in response to a mode switching signal controlling the DDIC to switch to a second operating mode, and displaying the second image data on a display panel in the second operating mode.Type: GrantFiled: November 5, 2019Date of Patent: November 9, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hun Han, Mi Ran Kim
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Publication number: 20200320917Abstract: An operating method of a display driving integrated circuit (DDIC) includes correcting first image data using correction data in a first operating mode. The first image data is received from a processor via an interface, and the correction data is stored in a first memory included in the DDIC. The method further includes storing second image data received from the processor in the first memory in response to a mode switching signal controlling the DDIC to switch to a second operating mode, and displaying the second image data on a display panel in the second operating mode.Type: ApplicationFiled: November 5, 2019Publication date: October 8, 2020Inventors: BYUNG HUN HAN, Mi Ran Kim
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Publication number: 20190371691Abstract: A film type package includes: a base film having first and second sides; a driver integrated circuit mounted on the base film; first connection pads disposed on a first area of the base film that is adjacent to the first side of the base film, and configured to be connected to a first external circuit; second connection pads disposed on a second area of the base film that is adjacent to the second side of the base film, and configured to be connected to a second external circuit; first signal lines disposed on the base film, and connecting the driver integrated circuit and the first connection pads; second signal lines disposed on the base film, and connecting the driver integrated circuit and the second connection pads; and a plurality of test lines extending from the driver integrated circuit to the first side of the base film.Type: ApplicationFiled: January 22, 2019Publication date: December 5, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hun HAN, Jung Eun KOO, So Young LIM
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Patent number: 9530357Abstract: A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.Type: GrantFiled: August 25, 2015Date of Patent: December 27, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-Suk Kim, Byung-Hun Han, Jae-Hyuck Woo
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Publication number: 20150364093Abstract: A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.Type: ApplicationFiled: August 25, 2015Publication date: December 17, 2015Inventors: IN-SUK KIM, BYUNG-HUN HAN, JAE-HYUCK WOO
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Patent number: 9135853Abstract: A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.Type: GrantFiled: February 13, 2013Date of Patent: September 15, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-suk Kim, Byung-hun Han, Jae-hyuck Woo
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Patent number: 9093038Abstract: A voltage stabilizer circuit for alternately or simultaneously stabilizing first and second generated voltages includes shared capacitor connected between the first and second generated voltages. The voltage stabilizer circuit may further include first and second switches for alternately connecting the first and second electrode of the shared capacitor to a ground. The alternation of the stabilized first and second voltages output by the voltage stabilizer circuit can be synchronized with a pixel polarity inversion mode signal output by the internal driver circuit of an LCD display.Type: GrantFiled: May 20, 2010Date of Patent: July 28, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung-hun Han, Jae-goo Lee
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Patent number: 9082366Abstract: A power converting circuit of a display driver includes a positive voltage generator and a negative voltage generator. The positive voltage generator includes a first capacitive DC-DC converter and a first inductive DC-DC converter, and generates a positive source voltage by selectively using one of the first capacitive DC-DC converter, the first inductive DC-DC converter, or a first external power supply voltage. The negative voltage generator includes a second capacitive DC-DC converter and a second inductive DC-DC converter, and generates a negative source voltage by selectively using one of the second capacitive DC-DC converter, the second inductive DC-DC converter, or a second external power supply voltage.Type: GrantFiled: July 31, 2012Date of Patent: July 14, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Hun Han, Kyung-Hoon Chung
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Patent number: 8599184Abstract: Provided is a boosting voltage generating element used in a semiconductor integrated circuit, more particularly, is a charge pump. The charge pump includes a first converting unit and a second converting unit. The first converting unit is configured to receive a first voltage in response to a first clock signal to generate a first pumping voltage. The first converting unit is also configured to alternately output the first pumping voltage to a first terminal and a second terminal. The second converting unit is configured to receive the first pumping voltage through the first terminal or the second terminal in response to a second clock signal and a third clock signal respectively, to generate a second pumping voltage The second converting unit is also configured to provide the second pumping voltage to an output terminal. The second converting unit is configured to provide the second pumping voltage to the output terminal for at least half of a period of the second clock signal or the third clock signal.Type: GrantFiled: June 15, 2010Date of Patent: December 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-hun Han, Sung-jin Park
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Publication number: 20130271507Abstract: A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.Type: ApplicationFiled: February 13, 2013Publication date: October 17, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: In-Suk KIM, Byung-hun HAN, Jae-hyuck WOO
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Publication number: 20130057530Abstract: A power converting circuit of a display driver includes a positive voltage generator and a negative voltage generator. The positive voltage generator includes a first capacitive DC-DC converter and a first inductive DC-DC converter, and generates a positive source voltage by selectively using one of the first capacitive DC-DC converter, the first inductive DC-DC converter, or a first external power supply voltage. The negative voltage generator includes a second capacitive DC-DC converter and a second inductive DC-DC converter, and generates a negative source voltage by selectively using one of the second capacitive DC-DC converter, the second inductive DC-DC converter, or a second external power supply voltage.Type: ApplicationFiled: July 31, 2012Publication date: March 7, 2013Inventors: Byung-Hun HAN, Kyung-Hoon CHUNG
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Publication number: 20120206506Abstract: A source driver, a display device including the same, and a method of driving the display device are provided. The source driver includes a global block configured to output “k” global gamma voltage signals, where “k” is 2 or an integer greater than 2. Each “k” global gamma voltage signal comprises a plurality of grayscale voltages and a pre-emphasis voltage that is output from the global block prior to each of the plurality of grayscale voltages. A channel driver is configured to select a global gamma voltage signal of the “k” global gamma voltage signals. The selected global gamma voltage signal includes a grayscale voltage of the plurality of grayscale voltages. The channel driver outputs the grayscale voltage to a source line in response to the channel driver receiving image data.Type: ApplicationFiled: February 14, 2012Publication date: August 16, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-Suk Kim, Jae Goo Lee, Byung Hun Han
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Publication number: 20110115834Abstract: Provided is a boosting voltage generating element used in a semiconductor integrated circuit, more particularly, is a charge pump. The charge pump includes a first converting unit and a second converting unit. The first converting unit is configured to receive a first voltage in response to a first clock signal to generate a first pumping voltage. The first converting unit is also configured to alternately output the first pumping voltage to a first terminal and a second terminal. The second converting unit is configured to receive the first pumping voltage through the first terminal or the second terminal in response to a second clock signal and a third clock signal respectively, to generate a second pumping voltage The second converting unit is also configured to provide the second pumping voltage to an output terminal. The second converting unit is configured to provide the second pumping voltage to the output terminal for at least half of a period of the second clock signal or the third clock signal.Type: ApplicationFiled: June 15, 2010Publication date: May 19, 2011Inventors: Byung-hun HAN, Sung-jin Park
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Publication number: 20110090212Abstract: A voltage stabilizer circuit for alternately or simultaneously stabilizing first and second generated voltages includes shared capacitor connected between the first and second generated voltages. The voltage stabilizer circuit may further include first and second switches for alternately connecting the first and second electrode of the shared capacitor to a ground. The alternation of the stabilized first and second voltages output by the voltage stabilizer circuit can be synchronized with a pixel polarity inversion mode signal output by the internal driver circuit of an LCD display.Type: ApplicationFiled: May 20, 2010Publication date: April 21, 2011Inventors: Byung-hun Han, Jae-goo Lee
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Publication number: 20110062925Abstract: A voltage range determination circuit may include an object voltage generating unit that generates an object voltage corresponding to a scaled-down voltage of an input voltage based on the input voltage, a selection voltage generating unit that generates a first selection voltage and a second selection voltage that is greater than the first selection voltage based on a reference voltage, a comparison voltage selecting unit that selects one of the first selection voltage and the second selection voltage as a comparison voltage based on an output signal, and an output signal generating unit that compares the object voltage with the comparison voltage to generate the output signal.Type: ApplicationFiled: August 6, 2010Publication date: March 17, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung-Hun HAN, Seung-Hoon BAEK
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Patent number: 7466312Abstract: Provided are a level shifter circuit and a corresponding method for controlling voltage levels of a clock signal and an inverted clock signal for driving gate lines of a ASG thin film transistor liquid crystal display panel, where the level shifter circuit includes first and second level shifters, the first level shifter controls the voltage level of the clock signal to swing between a negative external voltage level and a positive external voltage level in response to a clock activating signal, and increases the voltage level of the clock signal from the negative external voltage level to a power supply voltage level or decreases it from the positive external voltage level to a ground voltage level while a pre-charge clock activating signal is activated, the second level shifter controls the voltage level of the inverted clock signal to swing between the negative external voltage level and the positive external voltage level in response to an inverted clock activating signal, and increases the voltage levelType: GrantFiled: November 12, 2004Date of Patent: December 16, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Chul Choi, Jae-Goo Lee, Byung-Hun Han