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公开(公告)号：US20190250319A1
公开(公告)日：2019-08-15
申请号：US16101893
申请日：2018-08-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hye Young KONG , Hyunseok CHOI , Sangah GAM
IPC: G02B5/30 , G02F1/13363 , G02F1/1335 , H01L51/52
CPC classification number: G02B5/3083 , G02B1/04 , G02F1/133617 , G02F1/133634 , G02F2001/133565 , C08L33/24
Abstract: A phase difference film including: a phase difference thin film including at least two non-liquid crystal polymers, wherein the phase difference thin film satisfies refractive indexes of nx≥ny>nz and has a thickness direction phase difference per unit thickness of greater than or equal to about 80 nm/μm, wherein nx denotes a refractive index of the phase difference thin film at a slow axis thereof, ny denotes a refractive index of the phase difference thin film at a fast axis thereof, and nz denotes a refractive index of the phase difference thin film in a direction perpendicular to the slow axis and the fast axis thereof, and wherein an average light transmittance in a wavelength region of about 360 nm to about 740 nm is greater than or equal to about 88%, and a display device including the same.
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公开(公告)号：US20190031831A1
公开(公告)日：2019-01-31
申请号：US16048700
申请日：2018-07-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dmitry ANDROSOV , Changki KIM , Kalinina FEDOSYA , Hyunseok CHOI
IPC: C08G73/16 , C07D307/89 , C08G73/10 , C09D179/08 , G02B5/30 , G02B1/04
Abstract: A monomer is represented by Chemical Formula 1: wherein, in Chemical Formula 1, R1, R2, o, p, L1, A1, Ra, m, and n are the same as defined in the detailed description.
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公开(公告)号：US20180258258A1
公开(公告)日：2018-09-13
申请号：US15852160
申请日：2017-12-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Eun Sung LEE , Young Jae KANG , Won Joon CHO , Won Cheol JUNG , Hyunseok CHOI
Abstract: A polymer composition includes a polymer, a nanostructured filler, and a silane dispersing agent represented by Chemical Formula 1: R1—(Ar)p—(O-L1)q-(O-L2)r-(O-L3-O-L4)s-O-(L5)t-(L6)u-(CR2R3)w—Si(R4R5R6) Chemical Formula 1 wherein, in Chemical Formula 1, R1 to R6, Ar, L1 to L6, p, q, r, s, t, and w are the same as described in the detailed description.
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公开(公告)号：US20170197906A1
公开(公告)日：2017-07-13
申请号：US15171453
申请日：2016-06-02
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Changki KIM , Dmitry ANDROSOV , Masashi TSUJI , Hyunseok CHOI
CPC classification number: C07C69/82 , C07C69/76 , C08G64/045 , C08L69/005 , G02B5/3083
Abstract: A monomer is represented by Chemical Formula 1: wherein in Chemical Formula 1, X1 and X2 are independently O, C(═O), or C(═O)O, R1 to R10 are independently hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted C3 to C20 heterocyclic group, a substituted or unsubstituted silyl group, a hydroxy group, a halogen, a nitro group, or a combination thereof, and n1 and n2 are independently an integer ranging from 0 to 3.
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公开(公告)号：US20240421777A1
公开(公告)日：2024-12-19
申请号：US18815287
申请日：2024-08-26
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyunseok CHOI , Jooseung KIM , Jihoon KIM , Hyoseok NA , Sanghun SIM , Namjun CHO
Abstract: An electronic device and method thereof of are provided to prevent burnout due to overcurrent. An electronic device includes a power amplifier configured to amplify a transmission signal; a battery configured to provide a bias voltage to the at least one power amplifier; and an overcurrent protection circuit configured to prevent overcurrent from flowing through the power amplifier. The overcurrent protection circuit includes a configurer configured to configure a reference current value, based on the power amplifier; a measurer configured to measure a bias current value due to the bias voltage; a comparator configured to compare the measured bias current value with the reference current value; and a controller configured to recognize overcurrent flowing through the power amplifier and control provision of the bias voltage, based on a result of the comparison.
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Patent Agency Ranking
公开(公告)号：US20240039489A1
公开(公告)日：2024-02-01
申请号：US18379937
申请日：2023-10-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yongjun AN , Hyoseok NA , Jaejin YANG , Hyunseok CHOI
CPC classification number: H03F3/245 , H03F3/72 , H03F3/195 , H03F2200/451 , H03F2200/541 , H03F2203/7209 , H03F2200/06
Abstract: An electronic device includes: at least one antenna; and a power amplifier electrically connected to the at least one antenna. The power amplifier includes: a first amplification circuit; a first transformer; a first switch; a second amplification circuit; a second transformer; a second switch; the power combiner; and the third switch configured to electrically connect at least one of the first switch, the second switch, or an output port of the power combiner with the at least one antenna.
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公开(公告)号：US20230192592A1
公开(公告)日：2023-06-22
申请号：US18062340
申请日：2022-12-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dmitry ANDROSOV , Hyunseok CHOI , Kalinina FEDOSYA
IPC: C07C219/34 , C08G73/10 , G02B5/30 , G02B1/04 , C07C229/60 , C07C235/42 , C08G73/16 , C09D179/08 , C07D277/64 , C08G73/14
CPC classification number: C07C219/34 , C07C229/60 , C07C235/42 , C07D277/64 , C08G73/14 , C08G73/16 , C08G73/1007 , C08G73/1039 , C08G73/1042 , C08G73/1067 , C09D179/08 , G02B1/04 , G02B5/3083 , G02B5/3025
Abstract: A monomer represented by Chemical Formula 1:
wherein, in Chemical Formula 1, R1, R2, A1, A2, L1, L2, o, p, q, and r are the same as defined in the detailed description.-
公开(公告)号：US20220345093A1
公开(公告)日：2022-10-27
申请号：US17860467
申请日：2022-07-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongil YANG , Jooseung KIM , Junghwan SON , Hyunseok CHOI
Abstract: Disclosed is an electronic device comprising: a wireless communication circuit for generating an RF signal, an amplifier circuit electrically connected to the wireless communication circuit and configured to amplify the RF signal, and an antenna connected to the amplifier circuit. The amplifier circuit may comprise: a first amplifier; a second amplifier; a first transmission path connected to an output terminal of the first amplifier and the antenna; a second transmission path connected to an output terminal of the second amplifier and the first transmission path; a first variable impedance circuit located on the first transmission path and configured to change an electrical length of the first transmission path based on the frequency of the RF signal; and a second variable impedance circuit located on the second transmission path and configured to change the electrical length based on a power mode.
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公开(公告)号：US20210194438A1
公开(公告)日：2021-06-24
申请号：US17127064
申请日：2020-12-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyoseok NA , Jooseung KIM , Jihoon KIM , Sanghun SIM , Namjun CHO , Hyunseok CHOI
IPC: H03F1/52 , H04B1/3827 , H03D7/00 , H03F3/24 , H03L7/099
Abstract: An apparatus and a method are provided for, in an electronic device which generates a reference signal having a reference frequency, mixes the reference signal to an input signal for transmission, and amplifies power, outputting a control signal for turning off amplifying the power, if a frequency of a signal acquired at an arbitrary point after generating the reference signal or mixing the signals before amplifying the power is out of a designated frequency band, thus preventing burnout of a power amplifier.
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公开(公告)号：US20200088926A1
公开(公告)日：2020-03-19
申请号：US16275710
申请日：2019-02-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Ha Na KIM , Hyunseok CHOI , Sangah GAM , Ju Hyun KIM
IPC: G02B5/30 , G02F1/13363 , G02F1/13357
Abstract: A retardation film including a retardation coating layer including a polyimide and a solvent, wherein the solvent has a vapor pressure of less than about 15 Torr at 20° C. and a solubility parameter satisfying Relationship Formula 1. 16≤√{square root over (δD2+δP2+δH2)}
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