Patents by Inventor Gun-Hee Han
Gun-Hee 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: 9886177Abstract: Provided is a data preloading method which improves the response speed of a user device by predicting whether a particular object provided on a graphic user interface (GUI) will be selected based on the position of a pointer before the particular object is selected by a user and preloading data that should be loaded when the particular object is selected.Type: GrantFiled: October 10, 2013Date of Patent: February 6, 2018Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Seung Yup Lee, Ju Wan Yoo, Gun Hee Han
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Patent number: 9866775Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: GrantFiled: December 8, 2016Date of Patent: January 9, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Myung Lee, Gun-Hee Han, Seog-Heon Ham
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Publication number: 20170105703Abstract: Disclosed herein are a wireless probe, an ultrasound imaging apparatus, and a method of controlling the same. The wireless probe includes a determiner for determining whether to switch into a low-power mode based on at least one of a condition of a wireless communication network, whether an ultrasound image is about an object, position information between an ultrasonic imaging apparatus and the wireless probe, and whether a predetermined waiting time has passed; and a probe controller for controlling switching into the low-power mode based on the determination result.Type: ApplicationFiled: September 13, 2016Publication date: April 20, 2017Inventors: Gun Hee HAN, Sun Joong LEE, Yuri KIM, Gil-Ju JIN
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Publication number: 20170094204Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: ApplicationFiled: December 8, 2016Publication date: March 30, 2017Inventors: DONG-MYUNG LEE, GUN-HEE HAN, SEOG-HEON HAM
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Patent number: 9538105Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: GrantFiled: November 6, 2015Date of Patent: January 3, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Myung Lee, Gun-Hee Han, Seog-Heon Ham
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Publication number: 20160151042Abstract: Disclosed herein is an ultrasound imaging apparatus for generating an ultrasound image normally even when an ultrasound probe is mounted in a reverse direction. The ultrasound imaging apparatus includes an ultrasound probe, a connector configured to connect the ultrasound probe to a main body, and the main body configured to generate an ultrasound image using a signal transmitted through the connector regardless of a direction in which the connector is mounted on the main body.Type: ApplicationFiled: March 25, 2015Publication date: June 2, 2016Inventors: Gun Hee HAN, Soon Hwan KANG, Un Seob SHIN
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Patent number: 9204071Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: GrantFiled: July 15, 2011Date of Patent: December 1, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Myung Lee, Gun-Hee Han, Seog-Heon Ham
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Publication number: 20150277710Abstract: Provided is a data preloading method which improves the response speed of a user device by predicting whether a particular object provided on a graphic user interface (GUI) will be selected based on the position of a pointer before the particular object is selected by a user and preloading data that should be loaded when the particular object is selected.Type: ApplicationFiled: October 10, 2013Publication date: October 1, 2015Inventors: Seung Yup Lee, Ju Wan Yoo, Gun Hee Han
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Patent number: 8593319Abstract: An image sensor includes a delta-sigma analog-to-digital converter (ADC) including a delta-sigma modulator (DSM) and a voltage adjusting circuit. The DSM is configured to perform delta-sigma modulation on an analog signal from a unit pixel. The delta-sigma ADC is configured to convert the analog signal to a digital signal. The voltage adjusting circuit includes a replica inverter having a same configuration as at least one inverter included in the DSM. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.Type: GrantFiled: September 12, 2012Date of Patent: November 26, 2013Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Min-Ho Kwon, Seog-Heon Ham, Jeong-Jin Roh, Jae-Jin Yeo, Yong-Suk Choi, Gun-Hee Han
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Patent number: 8520128Abstract: Disclosed are an auto focus (AF) module and a photographing apparatus employing the same. The AF module may include an AF sensor having a plurality of AF pixels and a controller. The controller receives an information regarding the amount of light respectively received by the light receiving elements of one or more of the plurality of AF pixels from the one or more of the plurality of AF pixels. The controller of the AF sensor may be configured to control the operations, e.g., the light exposure timing, of the plurality of AF pixels based on the information received from the AF pixels.Type: GrantFiled: December 7, 2009Date of Patent: August 27, 2013Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Il-Do Kim, Ki-Sub Song, Gun-Hee Han, Jin-Min Cheon, Jeong-Hwan Lee
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Publication number: 20130162857Abstract: An image sensor includes a delta-sigma analog-to-digital converter (ADC) including a delta-sigma modulator (DSM) and a voltage adjusting circuit. The DSM is configured to perform delta-sigma modulation on an analog signal from a unit pixel. The delta-sigma ADC is configured to convert the analog signal to a digital signal. The voltage adjusting circuit includes a replica inverter having a same configuration as at least one inverter included in the DSM. The voltage adjusting circuit is configured to adjust a power supply voltage and an input voltage provided to the at least one inverter based on a current flowing in the replica inverter.Type: ApplicationFiled: September 12, 2012Publication date: June 27, 2013Applicants: Industry-Academic Cooperation Foundation, Yonsei University, SAMSUNG ELECTRONICS CO., LTD.Inventors: Min-Ho KWON, Seog-Heon HAM, Jeong-Jin ROH, Jae-Jin YEO, Yong-Suk CHOI, Gun-Hee HAN
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Patent number: 8432471Abstract: A CMOS image sensor includes a photodiode, a switch configured to transfer a signal sensed by the photodiode to a sensing node, and a comparator electrically and directly connected to the sensing node and configured to compare the sensed signal of the sensing node and a ramp signal. Reset offset of the comparator is maintained at a constant offset voltage level during an initialization mode.Type: GrantFiled: July 1, 2010Date of Patent: April 30, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Seung hyun Lim, Jeong hwan Lee, Kun hee Cho, Gun Hee Han, Kwi Sung Yoo, Seog heon Ham
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Patent number: 8159589Abstract: An image sensor for high-speed data readout is provided. The image sensor includes a line memory block temporarily storing a digital signal in unit of lines which is generated based on an analog signal output from a pixel array. The line memory block includes a plurality of line memories, a plurality of data line pairs respectively connecting the line memories to a sense amplifying unit, and a plurality of data line prechargers each including at least two precharge units separately connected with a corresponding one of the data line pairs to precharge the corresponding data line pair with a predetermined precharge voltage. Accordingly, the image sensor performs high-speed digital signal readout based on precharge operation of the data line prechargers.Type: GrantFiled: April 21, 2009Date of Patent: April 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Seung Hyun Lim, Gun Hee Han, Seog Heon Ham
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Patent number: 8101135Abstract: The present invention provides a desktop sterilizer for books. The sterilizer includes an openable main body which has a sterilization chamber therein and is closable by a door so as to be openable through an opening, and a book holder which is provided in the sterilization chamber to maintain the covers of a book in a state of being unfolded. The sterilizer further includes a sterilizing UV lamp which sterilizes the book, and an air discharger which is connected to a blower and blows air towards the proximal edges of pages bound to a book spine of the book held by the book holder, thus opening the pages of the book.Type: GrantFiled: May 27, 2009Date of Patent: January 24, 2012Assignee: IVS, Inc.Inventors: Jong Min Lee, Sang Ok Woo, Gun Hee Han
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Patent number: 8059175Abstract: A method for operating an image capture device having a sensor with an array of first and second pixels includes capturing an image a plurality of times with the second pixels to produce a corresponding second image signal, the second pixels being white pixels, capturing the image a single time with the first pixels to produce a corresponding first image signal, inputting selecting signals to the sensor via a row driver to obtain the first and second image signals from the first and second pixels, respectively, and converting the first and second image signals to respective digital values via an analog-to-digital converter.Type: GrantFiled: November 9, 2007Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Ju-Seop Park, Gun-Hee Han, Seog-Heon Ham
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Publication number: 20110266417Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: ApplicationFiled: July 15, 2011Publication date: November 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Myung LEE, Gun-Hee HAN, Seog-Heon HAM
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Patent number: 7995123Abstract: A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixel in response to a reset signal, inverting the first digital data, outputting a detection voltage corresponding to image data received from outside of the CMOS image sensor, and counting in synchronization with a clock signal, starting from an initial value equal to the inverted first digital data, and for an amount of time responsive to a voltage level of the detection voltage.Type: GrantFiled: October 23, 2007Date of Patent: August 9, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Myung Lee, Gun-Hee Han, Seog-Heon Ham
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Patent number: 7985993Abstract: A complementary metal oxide semiconductor (CMOS) image sensor includes a photodiode, a switch and a comparator. The switch transfers a sensing signal to a sensing node from the photodiode. The comparator, which is directly connected to the sensing node, compares the sensing signal of the sensing node with a reference signal. The comparator outputs a signal corresponding to a voltage difference between the sensing signal and the reference signal.Type: GrantFiled: October 18, 2007Date of Patent: July 26, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Myung Lee, Dong-Soo Kim, Gun-Hee Han, Seog-Heon Ham
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Publication number: 20110043676Abstract: A CMOS image sensor includes a photodiode, a switch configured to transfer a signal sensed by the photodiode to a sensing node, and a comparator electrically and directly connected to the sensing node and configured to compare the sensed signal of the sensing node and a ramp signal. Reset offset of the comparator is maintained at a constant offset voltage level during an initialization mode.Type: ApplicationFiled: July 1, 2010Publication date: February 24, 2011Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Seung hyun LIM, Jeong hwan LEE, Kun hee CHO, Gun Hee HAN, Kwi Sung YOO, Seog heon HAM
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Publication number: 20100182489Abstract: Disclosed are an auto focus (AF) module and a photographing apparatus employing the same. The AF module may include an AF sensor having a plurality of AF pixels and a controller. The controller receives an information regarding the amount of light respectively received by the light receiving elements of one or more of the plurality of AF pixels from the one or more of the plurality of AF pixels. The controller of the AF sensor may be configured to control the operations, e.g., the light exposure timing, of the plurality of AF pixels based on the information received from the AF pixels.Type: ApplicationFiled: December 7, 2009Publication date: July 22, 2010Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSET UNIVERSITYInventors: Il-Do KIM, Ki-Sub Song, Gun-Hee Han, Ji-Min Cheon, Jeong-Hwan Lee