Patents by Inventor Byung-gul Lim
Byung-gul Lim 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: 20230273451Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: ApplicationFiled: November 8, 2022Publication date: August 31, 2023Inventors: Chul Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 11520163Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: GrantFiled: December 9, 2020Date of Patent: December 6, 2022Assignee: RealD Inc.Inventors: Chui Woo Lee, Sung Ho Cho, Byung Gul Lim
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Publication number: 20210088806Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: ApplicationFiled: December 9, 2020Publication date: March 25, 2021Inventors: Chul Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 10914965Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: GrantFiled: April 5, 2018Date of Patent: February 9, 2021Assignee: RealD Inc.Inventors: Chui Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 10291906Abstract: The present invention relates to a stereoscopic image device and a method for providing a stereoscopic image and, more specifically, to a stereoscopic image device and a method capable of providing a stereoscopic image, which can provide high-quality stereoscopic image by using two projectors and devices related thereto.Type: GrantFiled: December 29, 2014Date of Patent: May 14, 2019Assignee: RealD Inc.Inventors: Byung Gul Lim, Sung Ho Cho, Chul Woo Lee
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Publication number: 20190011719Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: ApplicationFiled: April 5, 2018Publication date: January 10, 2019Inventors: Chul Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 9958697Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: GrantFiled: March 26, 2014Date of Patent: May 1, 2018Assignee: RealD Inc.Inventors: Chul Woo Lee, Sung Ho Cho, Byung Gul Lim
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Publication number: 20160301920Abstract: The present invention relates to a stereoscopic image device and a method for providing a stereoscopic image and, more specifically, to a stereoscopic image device and a method capable of providing a stereoscopic image, which can provide high-quality stereoscopic image by using two projectors and devices related thereto.Type: ApplicationFiled: December 29, 2014Publication date: October 13, 2016Applicant: MASTERIMAGE 3D Asia, LLC.Inventors: Byung Gul LIM, Sung Ho CHO, Chul Woo LEE
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Publication number: 20150103318Abstract: A stereoscopic image apparatus that is capable of minimizing loss of optical energy and improving quality of a stereoscopic image is disclosed. The stereoscopic image apparatus includes a polarizing beam splitter to reflect or transmit incident light based on polarization components of the light to split the light in at least three different directions, a reflective member to reflect the light reflected by the polarizing beam splitter to a screen, at least one modulator to modulate the light reflected by the reflective member and the light transmitted through the polarizing beam splitter, and a refractive member disposed in an advancing direction of light to be incident upon the polarizing beam splitter to refract the light to be incident upon the polarizing beam splitter.Type: ApplicationFiled: March 26, 2014Publication date: April 16, 2015Applicant: MASTERIMAGE 3D Asia, LLC.Inventors: Chul Woo Lee, Sung Ho Cho, Byung Gul Lim
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Patent number: 6108791Abstract: A password processing apparatus and method is provided in which a generic password or master password, in addition to an actual password, is written and verified by using an external memory device. The password processing apparatus includes an internal memory for storing an input password and a condition to read or record a generic password, a detachable storing medium, and an adaptor for writing data to and reading data from the detachable storage medium. A controller stores the password and the condition to read or record the generic password in the memory, stores the generic password in the storage medium according to the condition if the storage medium is connected to the adaptor, and compares the generic password stored in the storage medium with an input password if the input password is different from the password stored in the memory.Type: GrantFiled: March 31, 1998Date of Patent: August 22, 2000Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-chul Lee, Byung-gul Lim
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Patent number: 5951178Abstract: A keyboard is provided having a lower frame with an elastic member installed on the surface thereof. An elevation plate is installed on the lower frame capable of ascending or descending by an elastic force of the elastic member. A pair of guide plates are separately installed above the elevation plate capable of moving toward or away from each other in a horizontal direction and having a plurality of key holes and guides. Switch units are respectively installed on the lower frame, above the elevation plate and on the bottom surface of the guide plate, and a linkage of key pad assemblies are each installed, capable of compressing or extending by being guided by a guide of the guide plate and having a key for operating a switch of the switch unit directly or by inserting in a key hole of the guide plate.Type: GrantFiled: August 3, 1998Date of Patent: September 14, 1999Assignee: Samsung Electronics Co., Ltd.Inventor: Byung-gul Lim