Patents by Inventor Yu-Sheop Lee
Yu-Sheop Lee 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: 9626038Abstract: An apparatus is provided that includes an electromagnetic sensing unit to sense an electromagnetic field. The apparatus also includes a shielding layer to shield at least a portion of the electromagnetic field, the shielding layer including a magnetic material.Type: GrantFiled: April 2, 2015Date of Patent: April 18, 2017Assignee: Samsung Electronics Co., LtdInventors: Yu-Sheop Lee, Joo-Hoon Lee, Sun-Tae Jung
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Patent number: 9612692Abstract: A method and a position measuring apparatus that measures a position of a touch by an object on a device including the position measuring apparatus using an electrode unit for sensing a capacitance or voltage variation caused by a touch of the object and a control circuit unit for exchanging electrical signals with the electrode unit are provided. The method includes sensing a touch signal of the object on an independent channel connected to the control circuit unit through an independent connector; selectively driving a multi-channel disposed adjacent to the independent channel and electrically connected to the control circuit through a common connector, in response to the touch signal applied on the independent channel; and sensing the touch signal of the object using the multi-channel.Type: GrantFiled: April 9, 2013Date of Patent: April 4, 2017Assignee: Samsung Electronics Co., LtdInventors: Sung-Soo Park, Yu-Sheop Lee
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Patent number: 9229602Abstract: An electromagnetic sensing apparatus built in a touch screen having at least one soft key is provided, in which a Printed Circuit Board (PCB) has at least one sub-area corresponding to the at least one soft key, a controller has at least one input/output channel and controls electromagnetic sensing of the electromagnetic sensing apparatus, and a loop unit extends from one of the at least one input/output channel, has at least one sub-loop arranged in the at least one sub-area on the PCB, and outputs current induced by an electromagnetic field. Each sub-loop outputs a different output value with respect to the electromagnetic field.Type: GrantFiled: June 1, 2012Date of Patent: January 5, 2016Assignee: Samsung Electronics Co., LtdInventors: Yu-Sheop Lee, Joo-Hoon Lee
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Publication number: 20150212651Abstract: An apparatus is provided that includes an electromagnetic sensing unit to sense an electromagnetic field. The apparatus also includes a shielding layer to shield at least a portion of the electromagnetic field, the shielding layer including a magnetic material.Type: ApplicationFiled: April 2, 2015Publication date: July 30, 2015Inventors: Yu-Sheop Lee, Joo-Hoon Lee, Sun-Tae Jung
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Patent number: 9001088Abstract: A magnetic field shielding layer that does not affect an operation of a geo-magnetic sensor in a pointing input device of a touch screen type using an electromagnetic pen is provided. A magnetic field shielding layer is composed of magnetic metal powder. The magnetic field shielding layer is formed directly on the pointing input device without a need for a separate adhesive layer.Type: GrantFiled: July 11, 2012Date of Patent: April 7, 2015Assignee: Samsung Electronics Co., LtdInventors: Yu-Sheop Lee, Joo-Hoon Lee, Sun-Tae Jung
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Patent number: 8947394Abstract: An electromagnetic sensing apparatus is provided for a touch screen having a display and a soft key. The electromagnetic sensing apparatus includes a Printed Circuit Board (PCB) including a display area corresponding to the display and a sub-area corresponding to the soft key, a controller including channels, which controls electromagnetic sensing of the electromagnetic sensing apparatus, and a plurality of loop units that extend from the channels and output current induced by an electromagnetic field. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and a second sub-loop arranged in the sub-area. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and does not include a second sub-loop.Type: GrantFiled: May 23, 2012Date of Patent: February 3, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop Lee, Joo-Hoon Lee
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Publication number: 20130265279Abstract: A method and a position measuring apparatus that measures a position of a touch by an object on a device including the position measuring apparatus using an electrode unit for sensing a capacitance or voltage variation caused by a touch of the object and a control circuit unit for exchanging electrical signals with the electrode unit are provided. The method includes sensing a touch signal of the object on an independent channel connected to the control circuit unit through an independent connector; selectively driving a multi-channel disposed adjacent to the independent channel and electrically connected to the control circuit through a common connector, in response to the touch signal applied on the independent channel; and sensing the touch signal of the object using the multi-channel.Type: ApplicationFiled: April 9, 2013Publication date: October 10, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: Sung-Soo PARK, Yu-Sheop Lee
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Publication number: 20130016073Abstract: A magnetic field shielding layer that does not affect an operation of a geo-magnetic sensor in a pointing input device of a touch screen type using an electromagnetic pen is provided. A magnetic field shielding layer is composed of magnetic metal powder. The magnetic field shielding layer is formed directly on the pointing input device without a need for a separate adhesive layer.Type: ApplicationFiled: July 11, 2012Publication date: January 17, 2013Applicant: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop LEE, Joo-Hoon Lee, Sun-Tae Jung
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Publication number: 20120306810Abstract: An electromagnetic sensing apparatus built in a touch screen having at least one soft key is provided, in which a Printed Circuit Board (PCB) has at least one sub-area corresponding to the at least one soft key, a controller has at least one input/output channel and controls electromagnetic sensing of the electromagnetic sensing apparatus, and a loop unit extends from one of the at least one input/output channel, has at least one sub-loop arranged in the at least one sub-area on the PCB, and outputs current induced by an electromagnetic field. Each sub-loop outputs a different output value with respect to the electromagnetic field.Type: ApplicationFiled: June 1, 2012Publication date: December 6, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop Lee, Joo-Hoon Lee
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Publication number: 20120306809Abstract: An electromagnetic sensing apparatus is provided for a touch screen having a display and a soft key. The electromagnetic sensing apparatus includes a Printed Circuit Board (PCB) including a display area corresponding to the display and a sub-area corresponding to the soft key, a controller including channels, which controls electromagnetic sensing of the electromagnetic sensing apparatus, and a plurality of loop units that extend from the channels and output current induced by an electromagnetic field. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and a second sub-loop arranged in the sub-area. At least one of the plurality of loop units includes a first sub-loop arranged in the display area and does not include a second sub-loop.Type: ApplicationFiled: May 23, 2012Publication date: December 6, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop LEE, Joo-Hoon LEE
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Publication number: 20120235931Abstract: A touch screen panel apparatus is provided. The touch screen panel apparatus includes a first electrode layer including a plurality of first electrode lines arranged in a first direction to be spaced apart from each other by a predetermined distance; a plurality of first odd-numbered electrode plates coupled to odd-numbered lines of the first electrode lines; and a plurality of first even-numbered electrode plates coupled to even-numbered lines of the first electrode lines. The plurality of first odd-numbered electrode plates and the plurality of first even-numbered electrode plates are alternately arranged in a second direction different from the first direction.Type: ApplicationFiled: February 8, 2012Publication date: September 20, 2012Inventors: Yu-Sheop LEE, Sung-Soo PARK, Myeong-Sil PARK
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Patent number: 8035625Abstract: A touch screen includes a display screen having an upper surface that provides picture information, and an optical module that emits rays in directions that can be parallel with the upper surface of the screen. When an object, such as a stylus, pen or a finger is placed on the screen to select a portion of the picture information provided on the screen, at least a portion of the rays are reflected off of the object and detected in order to determine a position of the object on the screen. The position of the object can be calculated in various ways including calculating a position of the object based on a phase delay of the reflected rays, or based on an intensity of the reflected rays, or based on an incidence angle of the reflected rays.Type: GrantFiled: November 9, 2007Date of Patent: October 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Yu-Sheop Lee
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Publication number: 20110193874Abstract: A color electronic paper keypad device is provided that includes an electronic paper sheet having a plurality of electrode patterns. One or more of the plurality of electrode patterns displays a color depending on whether an electric field is applied. The device also includes a color display disposed over the electronic paper sheet. The color display changes the displayed color depending on whether a second electric field is applied. An illumination light reflects from or transmits through the color display to change the displayed color of the one or more electrode patterns. The device further includes a front light unit for illuminating said color display.Type: ApplicationFiled: February 7, 2011Publication date: August 11, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Sun-Tae JUNG, Sung-Soo Park, Yu-Sheop Lee, Joo-Hoon Lee
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Publication number: 20110187650Abstract: A key pad apparatus includes a key top part; an illuminating part for introducing the light of a light emitting element and diffusing the same; a first variable color display part to be irradiated by the diffused light from the illuminating part for selectively transforming its color to be reflected or transmitted according to an electrical signal; a first base film provided with a laminate under the first variable color display part and formed with a first printed surface; a second variable color display part provided with the laminate under the first base film to be irradiated by the diffused light from the illuminating part for selectively transforming its color to be reflected or transmitted according to an electrical signal; and a second base film provided with the laminate under the second variable color display part and formed with a first printed surface.Type: ApplicationFiled: January 31, 2011Publication date: August 4, 2011Inventor: Yu-Sheop LEE
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Publication number: 20110141390Abstract: A case for a portable electronic device includes an outer cover; a frame attached to an inner surface of the outer cover; a color converting liquid crystal display unit interposed between the outer cover and the frame; and an illumination unit interposed between the color converting liquid crystal display unit and the outer cover. The outer cover is made of a translucent or transparent synthetic resin. The color of the case seen from the outside can be changed by varying the color of the color converting liquid crystal display unit and the appearance or color of the portable electronic device can be expressed by controlling the illumination unit even in an environment in which intensity of illumination is weak, making it possible to provide various aesthetic effects to users.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop LEE, Sung-Soo Park
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Patent number: 7947915Abstract: Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm.Type: GrantFiled: March 4, 2008Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop Lee, Sun-Tae Jung, Joo-Hoon Lee
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Publication number: 20100141600Abstract: A touch screen is provided, in which a first layer of a transparent electrode is spaced from a second layer of a transparent electrode and a refraction index matching layer is interposed between the first and second layers of the transparent electrodes.Type: ApplicationFiled: December 8, 2009Publication date: June 10, 2010Applicant: Samsung Elecironics Co., Ltd.Inventors: Sung-Soo Park, Dong-Kyoon Han, Yu-Sheop Lee, Sun-Tae Jung
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Publication number: 20090154198Abstract: A reflection type display apparatus has a front light unit (FLU), and includes a display panel, a light guide disposed on the upper surface of the display panel, a light transparent adhesive layer attaching the lower surface of the light guide to the upper surface of the display panel, and a light source located at a side of the light guide for emitting light to the light guide. A protection window covers the light guide and the light source. By covering the display panel installed on the lower surface of the protection window and the light guide with a moisture-proof and light-shield film, moisture-proofing and light-shielding effects are obtained simultaneously. Further, by forming a light absorption layer at the edge of the light guide adjacent to the light source, generation of a hot spot at the edge of the light guide may be inhibited.Type: ApplicationFiled: December 15, 2008Publication date: June 18, 2009Inventors: Joo Hoon LEE, Sun Tae JUNG, Yu Sheop LEE
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Publication number: 20090135469Abstract: A reflection-type display apparatus that includes cavities dispersed on a light guide plate and is a type of flexible thin film, and a method for manufacturing a light guide plate. The reflection-type display apparatus includes: a reflection-type display; a light source provided on one side of the reflection-type display; a light guide plate bonded to the upper surface of the reflection-type display to scatter light introduced from the light source and having cavities transversely and longitudinally disposed by predetermined intervals on the upper surface thereof; and a film bonded to the upper surface of the light guide plate to protect the upper surface of the light guide plate.Type: ApplicationFiled: November 25, 2008Publication date: May 28, 2009Inventors: Yu Sheop Lee, Joo Hoon Lee, Sun Tae Jung
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Patent number: RE44974Abstract: Disclosed is a keypad assembly including a light guide panel, light, at least one light extracting pattern provided on the light guide panel so that light propagating inside the light guide panel is directed out of the light guide panel, a switch board having at least one switch; and at least one light source for coupling light to the inside of the light guide panel, wherein the light guide panel has a thickness of 0.03-0.6 mm.Type: GrantFiled: November 7, 2012Date of Patent: July 1, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yu-Sheop Lee, Sun-Tae Jung, Joo-Hoon Lee