Patents by Inventor Sang Hoon Cheon
Sang Hoon Cheon 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: 10460695Abstract: Provided is an electrochromic display device including a display panel including a plurality of pixels configured to display an image on a basis of a unit frame defined as first to third sub-frames, a timing controller configured to output a data signal and an off signal, and a data driving circuit configured to provide, to the pixels, a data voltage generated based on the data signal during the second sub-frame and provide, to the pixels, an off voltage generated based on the off signal during the third sub-frame, wherein each of the pixels includes an electrochromic element, and a power supply voltage is delivered to the electrochromic element in response to the data voltage during the second sub-frame and the power supply voltage provided to the electrochromic element is blocked in response to the off voltage during the third sub-frame.Type: GrantFiled: November 21, 2017Date of Patent: October 29, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chunwon Byun, Sang Hoon Cheon, Hyunkoo Lee
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Patent number: 10281792Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.Type: GrantFiled: January 8, 2018Date of Patent: May 7, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joo Yeon Kim, Jeong Ik Lee, Sang Hoon Cheon, Nam Sung Cho, Seong-Mok Cho, Yong Hae Kim, Tae-Youb Kim, Hojun Ryu, Chil Seong Ah, Chi-Sun Hwang
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Publication number: 20190025665Abstract: Provided is a reversible electrochemical mirror including a first substrate and a second substrate, which face each other, a first transparent electrode disposed on the first substrate and facing the second substrate, a second transparent electrode disposed on the second substrate and facing the first transparent electrode, an electrolyte solution interposed between the first transparent electrode and the second transparent electrode, and a counter electrode material layer disposed on the second transparent electrode and contacting the electrolyte solution.Type: ApplicationFiled: April 4, 2018Publication date: January 24, 2019Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok CHO, Sujung KIM, Tae-Youb KIM, Juhee SONG, Chil Seong AH, Yong Hae KIM, Joo Yeon KIM, Hojun RYU, Jeong Ik LEE, Sang Hoon CHEON, Chi-Sun HWANG
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Publication number: 20180335281Abstract: Provided is an active camouflage device including a reflective layer, a first electrode disposed on the reflective layer, a second electrode facing the first electrode, and an electrolyte provided between the first and second electrodes. The first electrode includes a transparent electrode, and the second electrode includes a metal mesh.Type: ApplicationFiled: April 10, 2018Publication date: November 22, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Tae-Youb KIM, Juhee SONG, Chil Seong AH, Seong-Mok CHO, Sujung KIM, Joo Yeon KIM, Hojun RYU, JEONG IK LEE, Sang Hoon CHEON, Chi-Sun HWANG
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Publication number: 20180231856Abstract: An electrochromic mirror includes a first electrode structure, a second electrode structure provided on the first electrode structure, and an electrolyte provided between the first and second electrode structures. Here, the first electrode structure further includes a metal layer, a graphene layer disposed on the metal layer, and an interface part disposed between the metal layer and the graphene layer. The interface part includes a micro/nano-porous polymer material.Type: ApplicationFiled: January 8, 2018Publication date: August 16, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Joo Yeon KIM, JEONG IK LEE, Sang Hoon CHEON, Nam Sung CHO, Seong-Mok CHO, Yong Hae KIM, Tae-Youb KIM, Hojun RYU, Chil Seong AH, Chi-Sun HWANG
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Publication number: 20180151147Abstract: Provided is an electrochromic display device including a display panel including a plurality of pixels configured to display an image on a basis of a unit frame defined as first to third sub-frames, a timing controller configured to output a data signal and an off signal, and a data driving circuit configured to provide, to the pixels, a data voltage generated based on the data signal during the second sub-frame and provide, to the pixels, an off voltage generated based on the off signal during the third sub-frame, wherein each of the pixels includes an electrochromic element, and a power supply voltage is delivered to the electrochromic element in response to the data voltage during the second sub-frame and the power supply voltage provided to the electrochromic element is blocked in response to the off voltage during the third sub-frame.Type: ApplicationFiled: November 21, 2017Publication date: May 31, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Chunwon BYUN, Sang Hoon CHEON, Hyunkoo LEE
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Publication number: 20180062418Abstract: Provided is an electronic device system. The electronic device system includes an electronic device having an open loop shape and a coil within the electronic device. The coil includes a first coil part through which current flows in a first direction, a second coil part through which current flows in a second direction opposite to the first direction, and a shield unit provided to at least one of the first coil part or the second coil part.Type: ApplicationFiled: June 8, 2017Publication date: March 1, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Hoon CHEON, Hojun RYU
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Patent number: 9897887Abstract: Provided is an electrochromic device, which may prevent a damage of an electrode and include a lower substrate and an upper substrate configured to face each other with an electrolyte layer therebetween, an upper electrode provided between the electrolyte layer and the upper substrate, a lower electrode provided between the electrolyte layer and the lower substrate, an upper ion reactive layer provided between the upper electrode and the electrolyte layer, and a lower protection layer provided between the lower electrode and the electrolyte layer and configured to prohibit the lower electrode and the electrolyte layer from contacting.Type: GrantFiled: August 11, 2016Date of Patent: February 20, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joo Yeon Kim, Hojun Ryu, Sang Hoon Cheon, Seong-Mok Cho, Ji-Young Oh, Tae-Youb Kim, Chil Seong Ah, Yong Hae Kim, Jeong Ik Lee, Nam Sung Cho, Chi-Sun Hwang
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Publication number: 20170219902Abstract: Provided is an electrochromic device, which may prevent a damage of an electrode and include a lower substrate and an upper substrate configured to face each other with an electrolyte layer therebetween, an upper electrode provided between the electrolyte layer and the upper substrate, a lower electrode provided between the electrolyte layer and the lower substrate, an upper ion reactive layer provided between the upper electrode and the electrolyte layer, and a lower protection layer provided between the lower electrode and the electrolyte layer and configured to prohibit the lower electrode and the electrolyte layer from contacting.Type: ApplicationFiled: August 11, 2016Publication date: August 3, 2017Inventors: Joo Yeon KIM, Hojun RYU, Sang Hoon CHEON, Seong-Mok CHO, Ji-Young OH, Tae-Youb KIM, Chil Seong AH, Yong Hae KIM, Jeong Ik LEE, Nam Sung CHO, Chi-Sun HWANG
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Patent number: 9581876Abstract: Provided is an electrochromic device and a method for driving the electrochromic device, the electrochromic device including a first electrode, a first electrochromic layer, an electrolyte layer, a second electrochromic layer, and a second electrode which are laminated in sequence, at least one selected from among the group consisting of the first and second electrochromic layers and the electrolyte layer including scattering particles, and the electrochromic device further including an additional layer that contains the scattering particles and is disposed between the electrolyte layer and the first or second electrochromic layer.Type: GrantFiled: January 28, 2016Date of Patent: February 28, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Mok Cho, Joo Yeon Kim, Tae-Youb Kim, Hojun Ryu, Chil Seong Ah, Sang Hoon Cheon, Yong Hae Kim, Juhee Song, Chi-Sun Hwang
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Patent number: 9543789Abstract: Disclosed are an apparatus and a method for transmitting/receiving wireless energy in an energy transmission system. The apparatus includes: a transmitting controller configured to generate a wireless energy signal; a transmitting resonance body port configured to transmit the wireless energy signal; and a transmitting resonance body configured to transmit the wireless energy signal transmitted through the transmitting resonance body port to receiving apparatuses, wherein the transmitting controller transmits impedance control signals for controlling impedance of each of the receiving resonance body ports of the plurality of receiving apparatuses.Type: GrantFiled: November 20, 2012Date of Patent: January 10, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Min Kim, In-Kui Cho, Jung-Ick Moon, Je-Hoon Yun, Sang-Hoon Cheon, Yong-Hae Kim, Myung-Lae Lee, Seung-Youl Kang, Woo-Jin Byun
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Publication number: 20160247457Abstract: A display panel includes pixels, the pixels being configured to be driven in either a reflection mode or a light emission mode, the pixels comprises a first substrate comprising a light-transmitting material, a second substrate opposite to the first substrate, a light emitting element layer on the first electrode, the light emitting element layer comprising a light emitting material, the light emitting material being configured to emit light in the light emission mode by an oxidation of the light emitting material and a reduction of the light emitting material, a second electrode on a surface of the second substrate in a direction of the first substrate, a reflective element layer on the second electrode, the reflective element layer comprising a reflective material, the reflective material being configured to be colored or bleached in the reflection mode by an oxidation of the reflective material and a reduction of the reflective material.Type: ApplicationFiled: February 18, 2016Publication date: August 25, 2016Inventors: Joo Yeon KIM, Sang Hoon CHEON, Hyunkoo LEE, Byoung-Hwa KWON, Jaehyun MOON, Seung Koo PARK, Byoung Gon YU, JEONG IK LEE, Jong Tae LIM, Hye Yong CHU, Jun-Han HAN
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Patent number: 9293943Abstract: Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.Type: GrantFiled: July 30, 2013Date of Patent: March 22, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong Min Kim, In Kui Cho, Je Hoon Yun, Jung Ick Moon, Sang Hoon Cheon
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Patent number: 9006936Abstract: A power transmitter includes a signal processor that externally obtains a reception power state signal depending on variation of a distance between transmission and reception coil units, a modulation controller configured to a modulation frequency for selecting a frequency band having maximum power transmission performance, based on the reception power state signal, a power signal generator that generates a power signal, and a modulator that modulates the power signal in response to the modulation frequency, the reception coil unit being configured to transmit the modulated signal. A power receiver includes a reception coil unit that receives a power signal, a power generator that generates power by receiving the power signal from the reception coil unit, and a signal generator that generates a reception power state signal depending on the generated power level and transmits the latter signal to a transmission coil unit corresponding to the reception coil unit.Type: GrantFiled: June 7, 2012Date of Patent: April 14, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Hae Kim, Seung Youl Kang, Sang Hoon Cheon, Myung Lae Lee, Taehyoung Zyung
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Patent number: 8901532Abstract: Provided is a non-volatile programmable device including a first terminal, a first threshold switching layer connected to part of the first terminal, a phase change layer connected to the first threshold switching layer, a second threshold switching layer connected to the phase change layer, a second terminal connected to the second threshold switching layer, and third and fourth terminals respectively connected to a side portion of the phase change layer and the other side portion opposite to the side portion of the phase change layer.Type: GrantFiled: May 8, 2012Date of Patent: December 2, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Seung Yun Lee, Young Sam Park, Sung Min Yoon, Soonwon Jung, Sang Hoon Cheon, Byoung Gon Yu
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Patent number: 8816584Abstract: Provided is a light source apparatus which include a light emitting unit including a light emitting area of unit of surface, an antenna disposed along the outer periphery so as not to encroach on a light emitting area and a driving unit, and a driving unit processing wireless power received from the antenna and supplying the processed wireless power to the light emitting unit. According to the light source apparatus, miniaturization may be accomplished and a shielding phenomenon of an antenna reception signal caused by the light emitting area may be suppressed.Type: GrantFiled: January 8, 2013Date of Patent: August 26, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Jun-Han Han, Jeong Ik Lee, Yong Hae Kim, Myung Lae Lee, Sang Hoon Cheon, Jaehyun Moon, Seung Koo Park, Doo-Hee Cho, Joo Hyun Hwang, Jin Wook Shin, Chul Woong Joo, Jin Woo Huh, Hye Yong Chu
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Publication number: 20140152247Abstract: Provided is a battery charging method using wireless power transmission, the method including: receiving a first message associated with a battery charge start from a reception apparatus; discovering an optimal frequency band for a transmit power signal to be transmitted to the reception apparatus based on the first message; receiving, from the reception apparatus, a second message that includes an extra power value and a charge power value, and is associated with a charge state of the reception apparatus; and adaptively controlling transmit power so that the extra power value is maintained to be constant in proportion to a relationship between the charge power value and a first parameter, based on the second message.Type: ApplicationFiled: July 30, 2013Publication date: June 5, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong Min KIM, In Kui CHO, Je Hoon YUN, Jung Ick MOON, Sang Hoon CHEON
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Publication number: 20130307344Abstract: Provided are a wireless power transmission receiver and a system including the same, particularly to a receiver and transmitter transmitting power from one transmitter to a plurality of receivers at the same time by wireless. According to the present invention, the wireless power receiver comprises a receiving coil unit receiving power from a transmitter by a resonance coupling method; and a power receiving unit receiving power from the receiving coil unit to provide the power to a load resistor, wherein an input impedance of the power receiving unit is adjusted according to power consumed by a plurality of receivers. Therefore, power transmission efficiency of the wireless power receiver and transmitter can be improved.Type: ApplicationFiled: September 13, 2012Publication date: November 21, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sang Hoon CHEON, Yong Hae KIM, Myung Lae LEE, Seung Youl KANG, Taehyoung ZYUNG
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Patent number: 8558412Abstract: Provided is a method for a wireless power transfer. The method includes modulating a transmission frequency according to a predetermined value at a wireless power transmitter; and transmitting a high frequency signal according to the modulated transmission signal from the wireless power transmitter to at least one wireless power receiver and redetermining the predetermined value according to information which corresponds to a power value of the high frequency signal received by the at least one wireless power receiver, wherein the modulating the transmission frequency at the wireless power transmitter and transmitting the high frequency and the redetermining the predetermined value the at least one wireless power receiver are repeated.Type: GrantFiled: October 4, 2010Date of Patent: October 15, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Hae Kim, Seung Youl Kang, Sang Hoon Cheon, Myung Lae Lee, Tae Hyoung Zyung
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Publication number: 20130088082Abstract: Disclosed is a wireless power transferring device which includes a power generating unit configured to generate a power using a solar battery; a power charging unit including a super capacitor or a battery and configured to charge the generated power to retain a power; and a transmission unit configured to convert the power of the charging unit into a high frequency to send the high frequency wirelessly.Type: ApplicationFiled: June 1, 2012Publication date: April 11, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung Youl KANG, Yong Hae Kim, Sang Hoon Cheon, Myung Lae Lee, Taehyoung Zyung