Patents by Inventor Dong Hyun Chang
Dong Hyun Chang 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: 20240087294Abstract: Systems and methods for domain generalization configured in accordance with some embodiments of the invention are illustrated. One embodiment includes a method for domain generalization of a machine learning model. The method sets a parameter of a first model and a parameter of a second model based on a pre-trained model. The method learns the second model by performing a predetermined task on a source domain. The method estimates an unobservable gradient for model updates on an unseen domain based on: the parameter of the first model, and the parameter of the second model. The method updates the first model based on the estimated unobservable gradient.Type: ApplicationFiled: September 13, 2023Publication date: March 14, 2024Applicant: Hyperconnect LLCInventors: Bu Ru Chang, Byoung Gyu Lew, Dong Hyun Son
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Patent number: 10800522Abstract: An electronic device includes a communication circuit configured to communicate with an unmanned aerial vehicle (UAV) including a camera, a memory configured to store first flight information including a first flight pattern for a first location and first driving information of the camera, the first driving information corresponding to the first flight pattern, and a processor configured to be operatively connected with the communication circuit and the memory. The processor is configured to determine a flight reference location of the UAV, and control the UAV via the communication circuit such that the UAV flies based on the determined flight reference location and the first flight information.Type: GrantFiled: November 7, 2017Date of Patent: October 13, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: In Hyuk Choi, Youn Lea Kim, Dong Hyun Chang, Bo Kun Choi, Sung Jun Kim, Seung Nyun Kim
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Publication number: 20180155023Abstract: An electronic device includes a communication circuit configured to communicate with an unmanned aerial vehicle (UAV) including a camera, a memory configured to store first flight information including a first flight pattern for a first location and first driving information of the camera, the first driving information corresponding to the first flight pattern, and a processor configured to be operatively connected with the communication circuit and the memory. The processor is configured to determine a flight reference location of the UAV, and control the UAV via the communication circuit such that the UAV flies based on the determined flight reference location and the first flight information.Type: ApplicationFiled: November 7, 2017Publication date: June 7, 2018Inventors: In Hyuk CHOI, Youn Lea KIM, Dong Hyun CHANG, Bo Kun CHOI, Sung Jun KIM, Seung Nyun KIM
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Publication number: 20140125872Abstract: A broadcast receiving apparatus to minimize standby power and a method thereof. The broadcast receiving apparatus includes a sensor to detect variation in an inputted alternating current (AC) voltage and outputting a direct current (DC) voltage corresponding to the detection result, and a controller to detect variation in currents based on a digital voltage corresponding to the DC voltage and to determine the on/off state of an external apparatus, connected to the broadcast receiving apparatus, according to the detection result of the controller. Therefore, it is possible to determine whether the external apparatus is switched on or off according to a variation in power supplied to the external apparatus, to cut off a power supplied to the external apparatus based on the determination result, and to selectively control a power supplied to components of the broadcast receiving apparatus based on power saving data.Type: ApplicationFiled: January 13, 2014Publication date: May 8, 2014Applicant: Samsung Electronics Co., LtdInventor: Dong-hyun CHANG
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Patent number: 8654263Abstract: A broadcast receiving apparatus to minimize standby power and a method thereof. The broadcast receiving apparatus includes a sensor to detect variation in an inputted alternating current (AC) voltage and outputting a direct current (DC) voltage corresponding to the detection result, and a controller to detect variation in currents based on a digital voltage corresponding to the DC voltage and to determine the on/off state of an external apparatus, connected to the broadcast receiving apparatus, according to the detection result of the controller. Therefore, it is possible to determine whether the external apparatus is switched on or off according to a variation in power supplied to the external apparatus, to cut off a power supplied to the external apparatus based on the determination result, and to selectively control a power supplied to components of the broadcast receiving apparatus based on power saving data.Type: GrantFiled: January 11, 2007Date of Patent: February 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-hyun Chang
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Publication number: 20080030624Abstract: A broadcast receiving apparatus to minimize standby power and a method thereof. The broadcast receiving apparatus includes a sensor to detect variation in an inputted alternating current (AC) voltage and outputting a direct current (DC) voltage corresponding to the detection result, and a controller to detect variation in currents based on a digital voltage corresponding to the DC voltage and to determine the on/off state of an external apparatus, connected to the broadcast receiving apparatus, according to the detection result of the controller. Therefore, it is possible to determine whether the external apparatus is switched on or off according to a variation in power supplied to the external apparatus, to cut off a power supplied to the external apparatus based on the determination result, and to selectively control a power supplied to components of the broadcast receiving apparatus based on power saving data.Type: ApplicationFiled: January 11, 2007Publication date: February 7, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Dong-hyun Chang
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Publication number: 20060053454Abstract: A method of providing VOD (Video On Demand) content using a digital broadcast receiving device, and a digital broadcast receiving device using the method, the method including receiving broadcast programs and the VOD content through at least one tuner; storing the VOD content received through the at least one tuner; and reproducing the stored VOD content through a specified user authentication procedure.Type: ApplicationFiled: August 31, 2005Publication date: March 9, 2006Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong-hyun Chang
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Publication number: 20040136697Abstract: An apparatus and method for recording multimedia data is disclosed. The apparatus and method employ a receiving unit for receiving compressed multimedia signal, a decoder unit for decoding the multimedia signal to convert it into a data stream having a predetermined format, a data compression unit for reducing the amount of data in the data stream by a certain amount and encoding it, a compression select unit for setting a compressibility of the data compression unit, and a storage unit for storing the encoded data. In accordance with the apparatus for recording the multimedia data, in the case where there is no need to record the video data with high quality, it is possible to increase the recording time of the multimedia data by reducing the data amount of the video signal using a variety of compression methods when the multimedia data is recorded in a storage device.Type: ApplicationFiled: December 23, 2003Publication date: July 15, 2004Inventor: Dong-Hyun Chang
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Patent number: 5768377Abstract: A video signal descrambling apparatus capable of restoring a scrambled video signal transmitted from a cable television or commercial broadcasting system to the original standard video signal to permit subscribers to enjoy the scrambled signal and to provide a selective video service to the subscribers. According to the apparatus, a sync signal and information data are separated from the scrambled video signal, and control signals are generated based on the separated sync signal and the data. The artificial sync signal inserted in the scrambled video signal is removed in accordance with the control signal, and the attenuated sync signal in the scrambled video signal is restored to the original sync signal, so that the descrambling of the scrambled video signal is completed.Type: GrantFiled: August 6, 1996Date of Patent: June 16, 1998Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Dong Hyun Chang
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Patent number: 5768376Abstract: A video signal scrambling apparatus which scrambles a video signal in a cable or commercial broadcasting system to prevent nonsubscribers from viewing the signal and the unwarranted descrambling of the signal. The scrambling apparatus scrambles the video signal in such a manner that a predetermined period of a sync signal is selectively inverted and attenuated, and then an artificial sync signal is inserted into the video signal in which the sync signal is inverted and attenuated, causing the horizontal sync period to be irregular.Type: GrantFiled: August 6, 1996Date of Patent: June 16, 1998Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Dong Hyun Chang