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公开(公告)号：US11520206B2
公开(公告)日：2022-12-06
申请号：US16087701
申请日：2017-02-22
Inventor： Ho Jin Lee , Moon Sung Kang , Hyun Seung Jung , Eun Ah Heo , Bo Eun Cho , Jae Mok Koo
Abstract: An active metamaterial array of the present disclosure includes: a substrate; a plurality of metamaterial structures disposed on the substrate and spaced apart from each other; a conductivity variable material layer formed between each of the plurality of the metamaterial structures so as to selectively connect the metamaterial structures; an electrolyte material layer formed on the metamaterial structures and the conductivity variable material layer; and a gate electrode disposed at one end of the substrate so as to be in contact with one region of the electrolyte material layer, and when an external voltage is applied to the gate electrode, the gate electrode changes the conductivity of the conductivity variable material layer by controlling the migration of ions contained in the electrolyte material layer.
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公开(公告)号：US10127894B2
公开(公告)日：2018-11-13
申请号：US15252222
申请日：2016-08-31
Inventor： Jae Young Choi , Sung Min Kim , Ho Jin Lee , Geun Ho Jeong
Abstract: A system for providing fonts, an apparatus for providing Metafont fonts, and a method for controlling the apparatus are disclosed. The disclosed apparatus, which connects to a device to provide Metafont fonts, includes: a communication module configured to receive a first font request from the device for the font engine, where the first font request includes at least one font style parameter and the ID information of a Metafont font file; and an operating module configured to determine whether or not a font file having ID information identical to the ID information of the font file included in the first font request exists in a first external memory, and if a font file having identical ID information exists, determine whether or not the font converted from the font file having identical ID information is saved in a second external memory.
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公开(公告)号：US20200301224A1
公开(公告)日：2020-09-24
申请号：US16087701
申请日：2017-02-22
Inventor： Ho Jin Lee , Moon Sung Kang , Hyun Seung Jung , Eun Ah Heo , Bo Eun Cho , Jae Mok Koo
Abstract: An active metamaterial array of the present disclosure includes: a substrate; a plurality of metamaterial structures disposed on the substrate and spaced apart from each other; a conductivity variable material layer formed between each of the plurality of the metamaterial structures so as to selectively connect the metamaterial structures; an electrolyte material layer formed on the metamaterial structures and the conductivity variable material layer; and a gate electrode disposed at one end of the substrate so as to be in contact with one region of the electrolyte material layer, and when an external voltage is applied to the gate electrode, the gate electrode changes the conductivity of the conductivity variable material layer by controlling the migration of ions contained in the electrolyte material layer.
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