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公开(公告)号：US10559869B2
公开(公告)日：2020-02-11
申请号：US15972311
申请日：2018-05-07
Applicant: SOLiD, INC.
Inventor： Dongwon Lee
IPC: H01R31/06 , H01Q1/22 , H01R13/66 , H01R24/54 , H05K7/14 , H05K7/20 , H01R33/94 , H01R9/05 , H01R33/88 , H01R13/659 , H01R24/38 , H01R24/50 , H01R13/631
Abstract: A base station interface device including an interface board, which is located in a housing and determines an upper portion of a first surface as a first mounting location and an upper portion of a second surface opposite to the first surface as a second mounting location, including a relay connector wherein one end is exposed to the upper portion of the first surface and the other end is exposed to the upper portion of the second surface; a base station signal matching unit mounted on the first mounting location and including a first connector coupled to the one end of the relay connector; and a base station signal processing unit mounted on the second mounting location and including a second connector coupled to the other end of the relay connector.
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公开(公告)号：US10516492B2
公开(公告)日：2019-12-24
申请号：US16127591
申请日：2018-09-11
Applicant: SOLiD, INC.
Inventor： Youngju You
Abstract: A remote apparatus includes: a plurality of sub amplification units amplifying radio frequency (RF) signals of different frequency bands, respectively; a test signal generation unit generating test signals of a frequency band for any one sub amplification unit among the plurality of sub amplification units; a conversion unit converting intermodulation (IM) signals generated in response to the test signals into a plurality of conversion IM signals by using a conversion signal of which a frequency is swept; and a control unit determining a degree of an intermodulation distortion by the any one sub amplification unit based on signal levels of the plurality of the conversion IM signals.
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283.发明申请公开(公告)号：US20190380102A1
公开(公告)日：2019-12-12
申请号：US16548929
申请日：2019-08-23
Applicant: SOLiD, INC.
Inventor： Doyoon Kim , Hyoungho Kim
Abstract: Provided is a node unit which is branch-connected to another communication node via a transport medium, the node unit comprising: a delay measurement unit which transmits a test signal for measuring a delay to an adjacent node unit of the branch-connected upper stage via the transport medium and detects a loopback signal to which the test signal is looped back via the adjacent node unit of the upper stage, thereby measuring an upper stage transmission delay between the adjacent node unit of the upper stage and the node unit; a delay summation unit which, when an adjacent node unit of the branch-connected lower stage exists, receives a lower stage transmission delay transmitted from the adjacent node unit of the lower stage, and calculates a summed transmission delay by summing the upper stage transmission delay and the lower stage transmission delay; and a control unit which transmits the summed transmission delay to the adjacent node unit of the upper stage.
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公开(公告)号：US20190342003A1
公开(公告)日：2019-11-07
申请号：US16514516
申请日：2019-07-17
Applicant: SOLiD, INC.
Inventor： Jaeyoung HEO , Kyungmin Kim , Gilkook Kim , Bumsoo Park , Chinhyoung AN
IPC: H04B10/079 , H04B10/2575 , H04B7/185 , H04B10/118 , H04W56/00
Abstract: A satellite signal relay system according to an embodiment of the inventive concept includes: a plurality of remote units configured to receive an analog satellite signal, to convert the analog satellite signal into a digital satellite signal, to generate a characteristic signal for the analog satellite signal, to generate a transmission frame based on the digital satellite signal and the characteristic signal, and to convert the transmission frame into an optical transmission frame; and a central unit configured to convert optical transmission frames received from the plurality of remote units into transmission frames through an optical transmission medium, respectively, to extract a digital satellite signal and a characteristic signal from each of the converted transmission frames, and to convert any one of the extracted digital satellite signals into an analog satellite signal based on the extracted characteristics signals.
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285.发明授权公开(公告)号：US10397890B2
公开(公告)日：2019-08-27
申请号：US15540651
申请日：2014-12-31
Applicant: SOLiD, INC.
Inventor： Doyoon Kim , Hyoungho Kim
Abstract: Provided is a node unit which is branch-connected to another communication node via a transport medium, the node unit comprising: a delay measurement unit which transmits a test signal for measuring a delay to an adjacent node unit of the branch-connected upper stage via the transport medium and detects a loopback signal to which the test signal is looped back via the adjacent node unit of the upper stage, thereby measuring an upper stage transmission delay between the adjacent node unit of the upper stage and the node unit; a delay summation unit which, when an adjacent node unit of the branch-connected lower stage exists, receives a lower stage transmission delay transmitted from the adjacent node unit of the lower stage, and calculates a summed transmission delay by summing the upper stage transmission delay and the lower stage transmission delay; and a control unit which transmits the summed transmission delay to the adjacent node unit of the upper stage.
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Patent Agency Ranking
公开(公告)号：US20190234831A1
公开(公告)日：2019-08-01
申请号：US16381281
申请日：2019-04-11
Applicant: SOLiD, INC.
Inventor： Keewoon NA
IPC: G01M11/00 , H04B10/079 , H04B10/572 , H04B10/50 , H04B10/071
CPC classification number: G01M11/3127 , G01M11/3145 , G01M11/3181 , G01M11/331 , H04B10/071 , H04B10/0795 , H04B10/0799 , H04B10/503 , H04B10/572
Abstract: An optical line testing device for measuring at least a cutting position of an optical line according to the present invention includes: a first wavelength tunable laser source configured to generate a first optical signal in which a plurality of wavelengths appear alternately and periodically; a second wavelength tunable laser source configured to generate a second optical signal which is identical to the first optical signal but has an adjustable delay time; and an interferometer configured to cause interference between a reflected optical signal, corresponding to the first optical signal, which is returning after having been emitted to the optical line, and the second optical signal to output an interference signal.
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287.发明授权公开(公告)号：US10341159B2
公开(公告)日：2019-07-02
申请号：US15883628
申请日：2018-01-30
Applicant: SOLiD, INC.
Inventor： Jitaek Park
Abstract: A method of recovering a synchronization detection error according to an embodiment includes: determining whether a base station signal input to a head-end device is detected; determining whether a head-end signal output from the head-end device, which is obtained by processing the base station signal by the head-end device, is detected by a lower device of the head-end device; determining whether synchronization of the head-end signal is detected based on the head-end signal input to the lower device; and changing a set frequency band or performing automatic gain control of the head-end device based on whether the base station signal is detected, whether the head-end signal is detected, and whether the synchronization of the head-end signal is detected
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公开(公告)号：US10317447B2
公开(公告)日：2019-06-11
申请号：US15865749
申请日：2018-01-09
Applicant: SOLiD, INC.
Inventor： Yeong Shin Yeo , Kyung Eun Han
IPC: G01R23/00 , G01R23/02 , G01R31/08 , G01R21/00 , H04B7/26 , H04W24/08 , H04W24/10 , G01R29/10 , G01R23/20
Abstract: A passive intermodulation (PIM) measurement device for measuring a PIM in at least one of installation equipments and a distribution network within a distributed antenna system (DAS), the PIM measurement device included in a relay unit of the DAS the PIM measurement device includes a pulse generation unit a PIM detection unit and a controller. The pulse generation unit generates a two-tone pulse signal having frequencies different from each other. The PIM detection unit detects intermodulation (IM) signals fed back from the installation equipments or the distribution network in the DAS corresponding to the propagation of the two-tone pulse signal. The controller detects PIM generation information in the DAS based on the fed-back IM signal.
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公开(公告)号：US10312862B2
公开(公告)日：2019-06-04
申请号：US15540682
申请日：2015-12-30
Applicant: SOLiD, INC.
Inventor： Jaehun Choi , Kyungeun Han
Abstract: According to an embodiment of the inventive concept, an up-down converter includes a first mixer configured to convert an input radio frequency (RF) signal into an intermediate frequency (IF) signal using a first local signal; an IF filter configured to filter the IF signal converted by the first mixer; a second mixer configured to convert the IF signal, which has been filtered by the IF filter, into an output RF signal using a second local signal; and a local oscillator configured to control a frequency of the first local signal and the second local signal based on a frequency of the input RF signal.
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公开(公告)号：US10298328B2
公开(公告)日：2019-05-21
申请号：US15848172
申请日：2017-12-20
Applicant: SOLiD, INC.
Inventor： Young Ju You
IPC: H04B10/00 , H04B10/2575 , H04B7/024 , H04B7/0413 , H01Q1/24 , H04B7/022 , H04W88/08
Abstract: A head-end device according to an embodiment includes: a plurality of base station interfacing units configured to interface each of transmission/reception signals that are exchanged between the head-end device and a plurality of base stations; and a head-end control unit configured to receive an upper interfacing unit signal transmitted from an upper base station interfacing unit from among the plurality of base station interfacing units, and sequentially transmit the received upper interfacing unit signal to a lower base station interfacing unit.
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