Patents by Inventor Kwan-joon Kim
Kwan-joon 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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Patent number: 10887950Abstract: Provided is a cooking apparatus including: an induction heating coil that generates a magnetic field heating a cooking container; and an image generating unit that radiates light so that an image is generated on a surface of the cooking container, wherein the image generating unit includes: a plurality of light sources that radiate light toward the cooking container; a light source driving circuit that provides driving currents to the plurality of light sources; and a light-emitting controller that controls the light source driving circuit.Type: GrantFiled: May 28, 2015Date of Patent: January 5, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Sun Yun, Seung-Hwan Kim, Kwan Joon Kim, Eun Dae Bae, Heung Mun Oh, Ji Hyeoung Lee
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Patent number: 9892248Abstract: A refrigerator includes a handgrip arranged on one side of a door to open and close a storage compartments, a measurer configured to measure fingerprints and body composition of a user when the user grabs the handgrip, a display configured to display the measured body composition information, and a controller configured to recognize the user based on the measured fingerprints and store the measured body composition information as information regarding the recognized user.Type: GrantFiled: April 6, 2016Date of Patent: February 13, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-won Park, Hiroshi Awata, Kwan-joon Kim, Hyun-ki Kim
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Publication number: 20160292409Abstract: A refrigerator includes a handgrip arranged on one side of a door to open and close a storage compartments, a measurer configured to measure fingerprints and body composition of a user when the user grabs the handgrip, a display configured to display the measured body composition information, and a controller configured to recognize the user based on the measured fingerprints and store the measured body composition information as information regarding the recognized user.Type: ApplicationFiled: April 6, 2016Publication date: October 6, 2016Inventors: Jong-won Park, Hiroshi Awata, Kwan-joon Kim, Hyun-ki Kim
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Publication number: 20150351163Abstract: Provided is a cooking apparatus including: an induction heating coil that generates a magnetic field heating a cooking container; and an image generating unit that radiates light so that an image is generated on a surface of the cooking container, wherein the image generating unit includes: a plurality of light sources that radiate light toward the cooking container; a light source driving circuit that provides driving currents to the plurality of light sources; and a light-emitting controller that controls the light source driving circuit.Type: ApplicationFiled: May 28, 2015Publication date: December 3, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-Hwan KIM, Kwan Joon KIM, Eun Dae BAE, Heung Mun OH, Ji Hyeoung LEE
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Patent number: 7843775Abstract: An optical disc apparatus and a focusing method for the same prevent a focusing start error of an optical pickup when using a ring-shaped lens to handle multiple wavelengths, and allow the optical pickup to start focusing at the correct starting time. To write and/or read data to and/or from an optical disc, an optical pickup in the optical disc apparatus emits a laser beam to the disc through an objective lens, and reads a reflected beam to output a read signal. The optical pickup outputs a signal based on the read reflected beam. An actuator controls the position of the objective lens so that the laser beam is focused on a surface of the disc. A focusing controller performs focusing operations on the actuator using a focus error signal generated from the signal outputted from the optical pickup. A focusing start time detector processes the read signal used to generate the focus error signal and detects when to start the focusing control of the focusing controller.Type: GrantFiled: April 12, 2007Date of Patent: November 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sang Yeal Park, Kab Kyun Jeong, Kwan Joon Kim
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Patent number: 7349311Abstract: A method of, and an apparatus for detecting a radial tilt of a disc. Phases of summed signals obtained from signals that external light-receiving units of an octant photo diode receive are compared to generate an external phase comparison signal Do. Phases of other summed signals obtained from other signals, that internal light-receiving units of the octant photo diode receive, are compared to generate the internal phase comparison signal Di. The radial tilt is detected based on the internal and external phase comparison signals Di and Do obtained when a laser beam crosses a track formed the disc. Thus, the radial tilt can be more precisely detected.Type: GrantFiled: July 11, 2003Date of Patent: March 25, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-in Ma, Kwan-joon Kim, In-sik Park, Byoung-ho Choi
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Publication number: 20080068941Abstract: A method of processing a defect detection signal in a recording and/or reproducing apparatus that records and/or reproduces an optical information storage medium the method including generating a defect detection signal comprising a servo hold pulse from a radio frequency (RF) signal output from an optical pickup unit; and generating an OR signal by performing an OR operation on the defect detection signal and a first pulse signal having a first pulse width. The method further includes generating an AND signal by performing an AND operation on the OR signal and a second pulse signal having a second pulse width.Type: ApplicationFiled: March 29, 2007Publication date: March 20, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Jong-hyun Shin, Tatsuhiro Otsuka, Kwan-joon Kim, Young-jae Park
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Publication number: 20080043581Abstract: An optical disc apparatus and a focusing method for the same prevent a focusing start error of an optical pickup when using a ring-shaped lens to handle multiple wavelengths, and allow the optical pickup to start focusing at the correct starting time. To write and/or read data to and/or from an optical disc, an optical pickup in the optical disc apparatus emits a laser beam to the disc through an objective lens, and reads a reflected beam to output a read signal. The optical pickup outputs a signal based on the read reflected beam. An actuator controls the position of the objective lens so that the laser beam is focused on a surface of the disc. A focusing controller performs focusing operations on the actuator using a focus error signal generated from the signal outputted from the optical pickup. A focusing start time detector processes the read signal used to generate the focus error signal and detects when to start the focusing control of the focusing controller.Type: ApplicationFiled: April 12, 2007Publication date: February 21, 2008Applicant: Samsung SDI Co., Ltd.Inventors: Sang Yeal PARK, Kab Kyun Jeong, Kwan Joon Kim
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Patent number: 7304915Abstract: An actuator of an optical disk system and an apparatus producing a signal for driving the actuator, the actuator including a light source, with which information is recorded on or reproduced from an optical disk surface. In the actuator, an inner focusing coil and an outer focusing coil are installed near an inner boundary and an outer boundary, respectively, of the optical disk surface. A first signal wire is connected to a first port of the inner focusing coil and transmits an inner coil signal. A second signal wire is connected to a first port of the outer focusing coil and transmits an outer coil signal. A common signal wire is connected to a second port of the inner focusing coil and a second port of the outer focusing coil and transmits a common reference signal. Thus, a simple, inexpensive 8-wire actuator can be obtained.Type: GrantFiled: December 29, 2003Date of Patent: December 4, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-In Ma, Kwan-Joon Kim, Seok-Jung Kim, Shi-yang Ryu
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Patent number: 7286447Abstract: A recording and/or reproducing apparatus and a method of controlling the same. The method of controlling the apparatus for recording information in or reproducing information from a disc having a wobbled track, the method includes detecting a wobble signal recorded in the wobbled track, and removing an error component occurring during the recording or the reproducing, based on the detected wobble signal. Accordingly, errors arising from a variety of factors can be accurately compensated for during a recording or reproducing operation.Type: GrantFiled: November 25, 2002Date of Patent: October 23, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-in Ma, Kwan-joon Kim, In-sik Park
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Method of determining type of optical disc, and data recording and/or reproducing apparatus therefor
Publication number: 20060104176Abstract: A method of determining a type of an optical disc loaded into a data recording and/or reproducing apparatus, which includes a plurality of laser diodes and records data onto and/or reproduces data from diverse types of optical discs, and the data recording and/or reproducing apparatus for implementing the method. The method includes selecting one laser diode from among the plurality of laser diodes, radiating light onto the loaded optical disc while approaching and/or withdrawing the selected laser diode to and from the loaded optical disc, counting a number of reflection signals generated from the light reflected from the loaded optical disc, and determining the type of the loaded optical disc based on the number of reflection signals.Type: ApplicationFiled: October 11, 2005Publication date: May 18, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Byung-In Ma, Young-sam Lee, Kwan-joon Kim -
Patent number: 7035178Abstract: An apparatus for and a method of producing a push-pull tracking error signal in an optical disc system having four light-receiving sections A, B, C, and D arranged in a radial direction of the optical disc. Pairs of signals PA, PB, PC and PD, corresponding to light receiving sections A, B, C and D, respectively are differentially combined to provide differential signals. One differential signal is filtered, amplified and differentially combined with another differential signal to output a tracking error signal. Accordingly, distortion of the tracking error signal during jumping to a desired track and distortion of the tracking error signal due to a defect of the optical disc are prevented.Type: GrantFiled: January 7, 2003Date of Patent: April 25, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-in Ma, Young-man Ahn, In-sik Park, Kwan-joon Kim, Byoung-ho Choi
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Publication number: 20060077840Abstract: A disk area type detection method and apparatus, the disk area type detection method including detecting the difference between a side push-pull (SPP) 1 signal and an SPP2 signal; and determining whether an area is a storage medium related information area or a user data area on the disk, based on the detected difference. According to the method and apparatus, the user data area and the storage medium related information area of the disk can be easily distinguished, allowing phase locked loop (PLL) control to be performed appropriately.Type: ApplicationFiled: August 31, 2005Publication date: April 13, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Byung-In Ma, Kwan-Joon Kim
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Publication number: 20040057351Abstract: A method of, and an apparatus for detecting a radial tilt of a disc. Phases of summed signals obtained from signals that external light-receiving units of an octant photo diode receive are compared to generate an external phase comparison signal Do. Phases of other summed signals obtained from other signals, that internal light-receiving units of the octant photo diode receive, are compared to generate the internal phase comparison signal Di. The radial tilt is detected based on the internal and external phase comparison signals Di and Do obtained when a laser beam crosses a track formed the disc. Thus, the radial tilt can be more precisely detected.Type: ApplicationFiled: July 11, 2003Publication date: March 25, 2004Inventors: Byung-in Ma, Kwan-joon Kim, In-sik Park, Byoung-ho Choi
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Publication number: 20030210622Abstract: An apparatus for and a method of producing a push-pull tracking error signal in an optical disc system having four light-receiving sections A, B, C, and D arranged in a radial direction of the optical disc. Pairs of signals PA, PB, PC and PD, corresponding to light receiving sections A, B, C and D, respectively are differentially combined to provide differential signals. One differential signal is filtered, amplified and differentially combined with another differential signal to output a tracking error signal. Accordingly, distortion of the tracking error signal during jumping to a desired track and distortion of the tracking error signal due to a defect of the optical disc are prevented.Type: ApplicationFiled: January 7, 2003Publication date: November 13, 2003Applicant: Samsung Electronics Co., Ltd.Inventors: Byung-in Ma, Young-man Ahn, In-sik Park, Kwan-joon Kim, Byoung-ho Choi
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Publication number: 20030099168Abstract: A recording and/or reproducing apparatus and a method of controlling the same. The method of controlling the apparatus for recording information in or reproducing information from a disc having a wobbled track, the method includes detecting a wobble signal recorded in the wobbled track, and removing an error component occurring during the recording or the reproducing, based on the detected wobble signal. Accordingly, errors arising from a variety of factors can be accurately compensated for during a recording or reproducing operation.Type: ApplicationFiled: November 25, 2002Publication date: May 29, 2003Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung-In Ma, Kwan-Joon Kim, In-Sik Park