Patents by Inventor Dong Joong Kim
Dong Joong Kim 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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Publication number: 20250026002Abstract: A muscular strength assisting apparatus includes a muscular strength assisting portion that assists a user's muscular strength and a first connecting link including one side connected to one side of the muscular strength assisting portion and an opposite side rotatable relative to a shoulder of the user about a first rotation axis. The muscular strength assisting portion includes an upper arm module that assists muscular strength of an upper arm of the user and a link assembly including one side connected to one side of the upper arm module to be rotatable about a second rotation axis non-parallel to the first rotation axis and an opposite side disposed adjacent to a portion of a body of the user to be supported on the user.Type: ApplicationFiled: June 5, 2024Publication date: January 23, 2025Applicants: Hyundai Motor Company, Kia CorporationInventors: Kyu Jung KIM, Sung Woo Park, Hyun Seop Lim, Ju Young Yoon, Beom Su Kim, Min Woong Jeung, Seong Taek Hwang, Hyeon Jeong An, Ho Jun Kim, Moon Ki Jung, Soo Kyung Kang, Dong Jin Hyun, Hyo Joong Kim
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Publication number: 20250030893Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.Type: ApplicationFiled: October 4, 2024Publication date: January 23, 2025Applicant: Electronics and Telecommunications Research InstituteInventors: Jeong-Il SEO, Wook-Joong KIM, Kyu-Heon KIM, Kyeong-Ok KANG, Jin-Woo HONG, Yung-Lyul LEE, Ki-Hun HAN, Jae-Ho HUR, Dong-Gyu SIM, Seoung-Jun OH
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Patent number: 9759857Abstract: A backlight unit is disclosed which includes: optical members configured to each include a sheet ring portion having an optical sheet hole; a bottom cover configured to receive the optical members; and an optical member fixation portion formed in a fixation portion mounting region of the bottom cover, and configured to include a hook and a holder. The hook is inserted into the optical sheet hole.Type: GrantFiled: December 15, 2014Date of Patent: September 12, 2017Assignee: LG DISPLAY CO., LTD.Inventors: In Sang Jun, Dong Joong Kim
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Publication number: 20150338571Abstract: A backlight unit is disclosed which includes: optical members configured to each include a sheet ring portion having an optical sheet hole; a bottom cover configured to receive the optical members; and an optical member fixation portion formed in a fixation portion mounting region of the bottom cover, and configured to include a hook and a holder. The hook is inserted into the optical sheet hole.Type: ApplicationFiled: December 15, 2014Publication date: November 26, 2015Inventors: In Sang Jun, Dong Joong Kim
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Patent number: 9039204Abstract: A thin type projector is disclosed. The thin type projector according to present invention includes a panel part slidingly mounted at the front surface of the housing to open and close the projection lens part selectively. The thin type projector may further include a speaker part installed at the front surface of a housing, the speaker part converting an audio input signal into sound. When the panel part is separated, a lamp as a light source is exposed to the front of the housing. As a result, a user can replace the lamp with a new one conveniently.Type: GrantFiled: October 21, 2008Date of Patent: May 26, 2015Assignee: LG Electronics Inc.Inventor: Dong Joong Kim
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Patent number: 8299881Abstract: There is provided a transformer improved in leakage inductance including: a core having first, second and third legs electromagnetically coupled to one another; a primary winding formed of a conductor having one end and another end receiving power from the outside and dividedly wound around the first, second and third legs; and a secondary winding wound around at least one of the first, second and third legs and receiving induced power by electromagnetic induction with the primary winding.Type: GrantFiled: October 19, 2010Date of Patent: October 30, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Gun Woo Moon, Tae Won Heo, Chong Eun Kim, Ki Bum Park, Don Sik Kim, Jong Pil Kim, Sang Cheol Bong, Dong Wook Lee, Dong Joong Kim
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Patent number: 8120204Abstract: A load sharing device for load balancing among a plurality of power supply modules connected in parallel to a single load includes a common voltage control signal output unit and output voltage control units corresponding to the power supply modules, respectively. The common voltage control signal output unit generates a common voltage control signal from output voltages of the power supply modules and outputs the common voltage control signal to the power supply modules. The output voltage control units detect output currents of the power supply modules and control the output voltages of the power supply modules to be in a predetermined voltage range according to the common voltage control signal and the detected output currents.Type: GrantFiled: August 21, 2009Date of Patent: February 21, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Gun Woo Moon, Sang Cheol Bong, Kang Hyun Yi, Ki Bum Park, Dong Seong Oh, Chong Eun Kim, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Don Sik Kim
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Patent number: 8107262Abstract: There is provided a variable switching frequency type power supply that can achieve high efficiency by fixing a switching duty cycle to 50% and varying switching frequency. A variable switching frequency type power supply according to an aspect of the invention may include: a switching unit switching input power; a transformation unit converting a voltage level of the power switched by the switching unit into a predetermined voltage level; a rectification unit rectifying the power converted by the transformation unit; and a control unit fixing a switching duty cycle of the switching unit to a predetermined switching duty cycle, and varying switching frequency of the switching unit according to a voltage level of output power.Type: GrantFiled: December 10, 2008Date of Patent: January 31, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Sun Won, Sung Soo Hong, Chung Wook Roh, Sang Kyoo Han, Jong Sun Kim, Dong Seong Oh, Tae Won Heo, Dong Joong Kim, Don Sik Kim, Hak Ryong Kim
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Patent number: 8098500Abstract: A phase shift full bridge converter with a reduced current stress includes: a switching unit that switches an input voltage; a transformer that includes a first capacitor serially connected to, and having a primary side and a secondary side; an auxiliary circuit unit that includes a first switch, a second switch, and a second capacitor, which are connected in parallel to the secondary side of the transformer; and a rectification unit that is connected to the auxiliary circuit unit, with an output inductor being removed.Type: GrantFiled: September 19, 2008Date of Patent: January 17, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Tae Won Heo, Gun Woo Moon, Woo Jin Lee, Ki Bum Park, Don Sik Kim, Chong Eun Kim, Jong Pil Kim, Sang Cheol Bong, Hak Ryong Kim, Dong Joong Kim
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Patent number: 8094473Abstract: There is provided a bridgeless power factor correction circuit that corrects a power factor by complementarily switching two switches according to phase of input power without using rectifier bridge diodes. A bridgeless power factor correction circuit according to an aspect of the invention may include: a switching unit having a plurality of switches and alternately switching input AC power; a stabilizing unit rectifying and smoothing the power switched by the switching unit; and a control unit controlling an alternate switching operation between the plurality of switches according to phases of the input power.Type: GrantFiled: August 8, 2008Date of Patent: January 10, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Gun Woo Moon, Dong Wook Lee, Kyu Min Cho, Seong Wook Choi, Don Sik Kim, Jong Pil Kim, Sang Cheol Bong, Dong Joong Kim, Tae Won Heo
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Patent number: 7969752Abstract: In accordance with the present invention, the switching power supply device using a current sharing transformer includes an inverter switching unit for switching an input voltage; a set of share inductors connected to the inverter switching unit for distributing a current applied by the inverter switching unit; first and second transformers of which each primary side connected to the set of share inductors is connected in parallel to each other; and a rectifying unit connected to secondary sides of the first and second transformers.Type: GrantFiled: May 1, 2008Date of Patent: June 28, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Sang Cheol Bong, Tae Young Ahn, Don Sik Kim, Hak Ryong Kim, Myung Hyun Sung, Do Heung Na, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Dong Wook Lee
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Publication number: 20110037908Abstract: A thin type projector is disclosed. The thin type projector according to present invention includes a panel part slidingly mounted at the front surface of the housing to open and close the projection lens part selectively. The thin type projector may further include a speaker part installed at the front surface of a housing, the speaker part converting an audio input signal into sound. When the panel part is separated, a lamp as a light source is exposed to the front of the housing. As a result, a user can replace the lamp with a new one conveniently.Type: ApplicationFiled: October 21, 2008Publication date: February 17, 2011Inventor: Dong Joong Kim
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Publication number: 20110032062Abstract: There is provided a transformer improved in leakage inductance including: a core having first, second and third legs electromagnetically coupled to one another; a primary winding formed of a conductor having one end and another end receiving power from the outside and dividedly wound around the first, second and third legs; and a secondary winding wound around at least one of the first, second and third legs and receiving induced power by electromagnetic induction with the primary winding.Type: ApplicationFiled: October 19, 2010Publication date: February 10, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Gun Woo MOON, Tae Won HEO, Chong Eun KIM, Ki Bum PARK, Don Sik KIM, Jong Pil KIM, Sang Cheol BONG, Dong Wook LEE, Dong Joong KIM
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Publication number: 20110001359Abstract: The present invention relates to a load sharing device and a parallel power supply therewith. There is provided a parallel power supply, including: a plurality of power supply modules each connected to a single load in parallel to provide balanced output currents to the single load; a common voltage control signal output unit that generates a common voltage control signal from output voltages of the plurality of power supply modules and outputs the common voltage control signals to the plurality of power supply modules; and output voltage control units that are provided in the respective plurality of power supply modules to detect output currents of the plurality of power supply modules and to control output voltages of the plurality of power supply modules according to the detected signals, controlling the output voltages to be in a predetermined voltage range according to the common voltage control signals.Type: ApplicationFiled: August 21, 2009Publication date: January 6, 2011Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Gun Woo Moon, Sang Cheol Bong, Kang Hyun Yi, Ki Bum Park, Dong Seong Oh, Chong Eun Kim, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Don Sik Kim
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Publication number: 20100246225Abstract: The present invention provides a power supply for a server including: a PFC (Power Factor Correction) unit for meeting harmonic regulation by being connected to an input power source; a DC/DC unit including a switching stage provided with at least one switching device to switch a voltage of a link capacitor as an output voltage of the PFC unit to a predetermined operation frequency and a DC/DC stage driven by the switching stage; a DC/DC control unit for controlling the DC/DC unit by being connected to the switching device; and a frequency varying circuit unit for supplying the DC/DC control unit with a frequency control signal to adjust the operation frequency of the switching device according to load after detecting an output current of the link capacitor and acquiring load information.Type: ApplicationFiled: December 29, 2009Publication date: September 30, 2010Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Gun Woo MOON, Don Sik KIM, Kyu Min CHO, Young Do KIM, Dae Min JANG, Chong Eun KIM, Jong Pil KIM, Dong Joong KIM, Tae Won HEO, Sang Cheol BONG
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Patent number: 7742319Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.Type: GrantFiled: September 17, 2008Date of Patent: June 22, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Don Sik Kim, Gun Woo Moon, Kyu Min Cho, Young Do Kim, In Ho Cho, Hak Ryong Kim, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Sang Cheol Bong
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Publication number: 20100033993Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.Type: ApplicationFiled: September 17, 2008Publication date: February 11, 2010Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Don Sik Kim, Gun Woo Moon, Kyu Min Cho, Young Do Kim, In Ho Cho, Hak Ryong Kim, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Sang Cheol Bong
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Publication number: 20100014321Abstract: There is provided a variable switching frequency type power supply that can achieve high efficiency by fixing a switching duty cycle to 50% and varying switching frequency. A variable switching frequency type power supply according to an aspect of the invention may include: a switching unit switching input power; a transformation unit converting a voltage level of the power switched by the switching unit into a predetermined voltage level; a rectification unit rectifying the power converted by the transformation unit; and a control unit fixing a switching duty cycle of the switching unit to a predetermined switching duty cycle, and varying switching frequency of the switching unit according to a voltage level of output power.Type: ApplicationFiled: December 10, 2008Publication date: January 21, 2010Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Sun WON, Sung Soo Hong, Chung Wook Roh, Sang Kyoo Han, Jong Sun Kim, Dong Seong Oh, Tae Won Heo, Dong Joong Kim, Don Sik Kim, Hak Ryong Kim
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Publication number: 20100002471Abstract: A phase shift full bridge converter with a reduced current stress includes: a switching unit that switches an input voltage; a transformer that includes a first capacitor serially connected to, and having a primary side and a secondary side; an auxiliary circuit unit that includes a first switch, a second switch, and a second capacitor, which are connected in parallel to the secondary side of the transformer; and a rectification unit that is connected to the auxiliary circuit unit, with an output inductor being removed.Type: ApplicationFiled: September 19, 2008Publication date: January 7, 2010Inventors: Tae Won HEO, Gun Woo MOON, Woo Jin LEE, Ki Bum PARK, Don Sik KIM, Chong Eun KIM, Jong Pil KIM, Sang Cheol BONG, Hak Ryong KIM, Dong Joong KIM
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Publication number: 20090231884Abstract: In accordance with the present invention, the switching power supply device using a current sharing transformer includes an inverter switching unit for switching an input voltage; a share inductor for classification connected to the inverter switching unit for distributing a current applied by the inverter switching unit; first and second transformers of which each primary side connected to the share inductor for classification is connected in parallel to each other; and a rectifying unit connected to secondary sides of the first and second transformers.Type: ApplicationFiled: May 1, 2008Publication date: September 17, 2009Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Cheol BONG, Tae Young Ahn, Don Sik Kim, Hak Ryong Kim, Myung Hyun Sung, Do Heung Na, Jong Pil Kim, Dong Joong Kim, Tae Won Heo, Dong Wook Lee