Patents by Inventor Sei Hyoung Lee
Sei Hyoung 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: 10674077Abstract: A mixed reality content providing apparatus is disclosed. The mixed reality content providing apparatus may recognize an OOI included in a 360-degree VR image to generate metadata of the OOI and may provide a user with mixed reality content where the metadata is overlaid on the 360-degree VR image.Type: GrantFiled: October 26, 2017Date of Patent: June 2, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Nack Woo Kim, Byung Tak Lee, Sei Hyoung Lee, Hyun Yong Lee, Hyung Ok Lee, Young Sun Kim
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Publication number: 20190089898Abstract: A mixed reality content providing apparatus is disclosed. The mixed reality content providing apparatus may recognize an OOI included in a 360-degree VR image to generate metadata of the OOI and may provide a user with mixed reality content where the metadata is overlaid on the 360-degree VR image.Type: ApplicationFiled: October 26, 2017Publication date: March 21, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Nack Woo KIM, Byung Tak LEE, Sei Hyoung LEE, Hyun Yong LEE, Hyung Ok LEE, Young Sun KIM
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Patent number: 9971083Abstract: Provided is a directional backlight unit. The directional backlight unit includes a source light unit configured to generate dot source light, a linear source light generator configured to separate a plurality of source lights, which are output in a direction vertical to a line type output surface, from the dot source light according to different grating periods and generate the separated plurality of source lights as linear source lights, and a light guide panel configured to output backlight, which has a form of flat source lights and includes the plurality of source lights, in a direction vertical to a plate type output surface according to the different grating periods. The linear source light generator includes an incident surface on which the dot source light is incident and the line type output surface on which a plurality of grating patterns having the different grating periods are provided.Type: GrantFiled: December 3, 2015Date of Patent: May 15, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soo Yong Jung, Hee Seung Kim, Sun Goo Lee, Sei Hyoung Lee
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Patent number: 9906301Abstract: Provided herein is a single module bi-directional optical transmitting and receiving system including a transmitter transmitting an optical signal by converting a down-signal, and obtaining an up-signal by converting y the optical signal that is received, and a receiver transmitting the optical signal by converting the up-signal, and obtaining the down-signal by converting the optical signal that is received, wherein the transmitter and the receiver include a single optical transmitting module including a monitor receiving module, transmit the optical signal through the single optical transmitting module, and receive the optical signal through the monitor receiving module.Type: GrantFiled: July 13, 2016Date of Patent: February 27, 2018Assignee: Electronics and Telecommunications Research InstituteInventors: Soo Yong Jung, Jong Jin Lee, Hyun Seo Kang, Sei Hyoung Lee, Hee Seung Kim
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Patent number: 9823485Abstract: A display device includes a display panel, and a depth perception adjusting unit for adjusting a depth perception, based on polarization characteristics of light output from the display panel, wherein the depth perception adjusting unit includes a directional mirror and a reflective polarizer. Thus, the display device is implemented such that the directional mirror transmits or reflects light depending on an advancing direction of the light. Accordingly, any crosstalk phenomenon does not occur, and a depth perception can be adjusted without any loss of brightness efficiency.Type: GrantFiled: July 14, 2016Date of Patent: November 21, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hee Seung Kim, Hyun Seo Kang, Sei Hyoung Lee, Soo Yong Jung
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Publication number: 20170146807Abstract: A display device includes a display panel, and a depth perception adjusting unit for adjusting a depth perception, based on polarization characteristics of light output from the display panel, wherein the depth perception adjusting unit includes a directional mirror and a reflective polarizer. Thus, the display device is implemented such that the directional mirror transmits or reflects light depending on an advancing direction of the light. Accordingly, any crosstalk phenomenon does not occur, and a depth perception can be adjusted without any loss of brightness efficiency.Type: ApplicationFiled: July 14, 2016Publication date: May 25, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hee Seung KIM, Hyun Seo KANG, Sei Hyoung LEE, Soo Yong JUNG
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Publication number: 20170126317Abstract: Provided herein is a single module bi-directional optical transmitting and receiving system including a transmitter transmitting an optical signal by converting a down-signal, and obtaining an up-signal by converting y the optical signal that is received, and a receiver transmitting the optical signal by converting the up-signal, and obtaining the down-signal by converting the optical signal that is received, wherein the transmitter and the receiver include a single optical transmitting module including a monitor receiving module, transmit the optical signal through the single optical transmitting module, and receive the optical signal through the monitor receiving module.Type: ApplicationFiled: July 13, 2016Publication date: May 4, 2017Inventors: Soo Yong JUNG, Jong Jin LEE, Hyun Seo KANG, Sei Hyoung LEE, Hee Seung KIM
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Publication number: 20160202594Abstract: Provided is a display apparatus. The display apparatus includes a backlight unit configured to successively output backlight at multi output angles and a display module configured to successively output a 3D image corresponding to the backlight in multi output directions respectively corresponding to the multi output angles.Type: ApplicationFiled: January 12, 2016Publication date: July 14, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hee Seung KIM, Sun Goo LEE, Sei Hyoung LEE, Soo Yong JUNG
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Publication number: 20160161662Abstract: Provided is a directional backlight unit. The directional backlight unit includes a source light unit configured to generate dot source light, a linear source light generator configured to separate a plurality of source lights, which are output in a direction vertical to a line type output surface, from the dot source light according to different grating periods and generate the separated plurality of source lights as linear source lights, and a light guide panel configured to output backlight, which has a form of flat source lights and includes the plurality of source lights, in a direction vertical to a plate type output surface according to the different grating periods. The linear source light generator includes an incident surface on which the dot source light is incident and the line type output surface on which a plurality of grating patterns having the different grating periods are provided.Type: ApplicationFiled: December 3, 2015Publication date: June 9, 2016Inventors: Soo Yong JUNG, Hee Seung KIM, Sun Goo LEE, Sei Hyoung LEE
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Patent number: 9213132Abstract: Provided is a directional backlight unit that enables a three-dimensional (3D) image to be viewed at various viewing angles. The directional backlight unit includes a light source configured to emit light, a first reflector configured to reflect light emitted from the light source, a second reflector configured to additionally reflect the light reflected by the first reflector, a light guide plate configured to accommodate the light reflected by the first reflector or the second reflector and output the light to an outside, and an angle adjustor configured to rotate the first reflector or the second reflector to a reflective angle. The angle adjustor rotates the first reflector or the second reflector to change an incident angle of the light incident on the light guide plate and a refractive angle of the light output to the outside.Type: GrantFiled: March 31, 2014Date of Patent: December 15, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soo Yong Jung, Sei Hyoung Lee
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Publication number: 20150205032Abstract: Provided is a directional backlight unit that enables a three-dimensional (3D) image to be viewed at various viewing angles. The directional backlight unit includes a light source configured to emit light, a first reflector configured to reflect light emitted from the light source, a second reflector configured to additionally reflect the light reflected by the first reflector, a light guide plate configured to accommodate the light reflected by the first reflector or the second reflector and output the light to an outside, and an angle adjustor configured to rotate the first reflector or the second reflector to a reflective angle. The angle adjustor rotates the first reflector or the second reflector to change an incident angle of the light incident on the light guide plate and a refractive angle of the light output to the outside.Type: ApplicationFiled: March 31, 2014Publication date: July 23, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soo Yong JUNG, Sei Hyoung LEE
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Publication number: 20150138486Abstract: Provided are a directional backlight unit, a method of operating the directional backlight unit, and a display device. More particularly, provided are a directional backlight unit including a light source, a first optical plate layer disposed to be adjacent to the light source, a second optical plate layer disposed on the first optical plate layer and to which light from the light source is incident, and an optical sheet through which light emitted from the second optical plate layer passes, a method of operating the directional backlight unit, and a display device including the directional backlight unit.Type: ApplicationFiled: July 24, 2014Publication date: May 21, 2015Applicant: Electronics and Telecommunications Research InstituteInventor: Sei Hyoung LEE
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Patent number: 8488924Abstract: An optical waveguide and a bi-directional transceiver are provided. A single mode optical fiber has one end coupled to one end of a hollow optical fiber and an opposite end having a slope plane, thereby separating optical signals travelling in opposite directions from each other. Manual alignment for an optical system is easily realized without the need for additional optical elements, so that the light transmission/reception performance of the optical waveguide is improved and the structure of the optical waveguide is smaller.Type: GrantFiled: July 1, 2010Date of Patent: July 16, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Sei-Hyoung Lee, Hyun-Seo Kang, Jai-Sang Koh
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Patent number: 7995883Abstract: Disclosed are an optical waveguide and a bi-directional light transceiver, in which a wavelength selective filer is provided in the core of the optical waveguide to divide bi-directional signals, so that manual alignment of optical components are easily achieved and thus a small bi-directional light transceiver is realized and transmission/reception efficiency of light is enhanced.Type: GrantFiled: October 26, 2009Date of Patent: August 9, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Sei-hyoung Lee, Hyun-seo Kang, Jai-sang Koh
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Publication number: 20110002692Abstract: An optical waveguide and a bi-directional transceiver are provided. A single mode optical fiber has one end coupled to one end of a hollow optical fiber and an opposite end having a slope plane, thereby separating optical signals travelling in opposite directions from each other. Manual alignment for an optical system is easily realized without the need for additional optical elements, so that the light transmission/reception performance of the optical waveguide is improved and the structure of the optical waveguide is smaller.Type: ApplicationFiled: July 1, 2010Publication date: January 6, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sei-Hyoung LEE, Hyun-Seo KANG, Jai-Sang KOH
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Patent number: 7792401Abstract: An optical waveguide device and an optical communication module are provided. In the optical waveguide device which includes a core and a cladding layer formed around the core and has one end formed to be inclined so as to refract input and output signals, the core includes therein a diffraction portion for diffracting an optical signal incident through the cladding layer to propagate straight through the core. Thus, it is possible to prevent deterioration of an optical signal coupling ratio in implementing a technique of transmitting optical signals in opposite directions.Type: GrantFiled: March 25, 2009Date of Patent: September 7, 2010Assignee: Electronics and Telecommunications Research InstituteInventors: Hyun-seo Kang, Sei-hyoung Lee, Kwon-seob Lim, Jong-jin Lee, Jai-sang Koh
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Publication number: 20100135614Abstract: Disclosed are an optical waveguide and a bi-directional light transceiver, in which a wavelength selective filer is provided in the core of the optical waveguide to divide bi-directional signals, so that manual alignment of optical components are easily achieved and thus a small bi-directional light transceiver is realized and transmission/reception efficiency of light is enhanced.Type: ApplicationFiled: October 26, 2009Publication date: June 3, 2010Inventors: Sei-hyoung Lee, Hyun-seo Kang, Jai-sang Koh
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Publication number: 20100021108Abstract: An optical waveguide device and an optical communication module are provided. In the optical waveguide device which includes a core and a cladding layer formed around the core and has one end formed to be inclined so as to refract input and output signals, the core includes therein a diffraction portion for diffracting an optical signal incident through the cladding layer to propagate straight through the core. Thus, it is possible to prevent deterioration of an optical signal coupling ratio in implementing a technique of transmitting optical signals in opposite directions.Type: ApplicationFiled: March 25, 2009Publication date: January 28, 2010Inventors: Hyun-seo Kang, Sei-hyoung Lee, Kwon-seob Lim, Jong-jin Lee, Jai-sang Koh
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Patent number: 7412133Abstract: The present invention provides a wavelength selective optical focusing device using the cladding-etching of an optical fiber and an optical module using the same. The wavelength selective optical focusing device includes a core for transmitting an optical signal therethrough; and a cladding layer surrounding the core and having a plurality of grooves formed in the outer circumferential surface thereof such that the grooves are changed at a designated rate, wherein an optical signal having a designated wavelength guided by the core is focused to the outside of the cladding layer by the grooves.Type: GrantFiled: December 28, 2005Date of Patent: August 12, 2008Assignee: Electronics and Telecommunications Research InstituteInventors: Shin Young Yoon, Sei Hyoung Lee, Hyun Seo Kang