Sang Yub
Sang Yub Kim, Suwon-Si KR
Patent application number | Description | Published |
---|---|---|
20130039628 | FIBER DISTRIBUTION HOUSING - Disclosed herein is a fiber distribution housing which maximizes worker's operation efficiency, simplifies arrangement of optical cables within the fiber distribution housing, and minimizes tension or stress applied to the optical cables. | 02-14-2013 |
20130236151 | FIBER OPTICS CONNECTION BOX - Disclosed herein is a fiber optics connection box in which a feeding cable introduced into the fiber optics connection box is processed by an optical processing module and is withdrawn as out cables, passing cables pass through a receiving space defined in the fiber optics connection box, thereby improving watertightness, work efficiency, and price competitiveness in a state in which the cables are mounted or while the cables are mounted. | 09-12-2013 |
Sang Yub Lee, Sungnam KR
Patent application number | Description | Published |
---|---|---|
20080292023 | DIRECT SAMPLING TYPE WIRELESS RECEIVER AND METHOD USING THE SAME - There are provided a direct sampling type wireless receiver and a method using the same that reduce nonlinearity and DC offset by using a multi-port network and a carrier frequency direct conversion method with a low sampling rate of a direct sampling method in a wireless communication receiver. A direct sampling type wireless receiver according to an aspect of the invention includes: a reference signal generation unit supplying a first reference signal having a predetermined frequency and a second reference signal having a higher frequency than the first reference signal; a down sampling unit sampling an input RF signal according to the first reference signal; an analog-to-digital converting unit converting the signal sampled by the down sampling unit into a digital signal according to the second reference signal; and a multiple-input multiple-output port unit dividing the digital signal from the analog-to-digital converting unit into a plurality of digital signals, generating a plurality of carrier signals having different phases from each other by shifting phases of the digital signals, and outputting a plurality of phase signals having different phases from each other by adding the plurality of carrier signals and the plurality of digital signals to each other. | 11-27-2008 |
Sang Yub Lee, Gyeonggi-Do KR
Patent application number | Description | Published |
---|---|---|
20110156925 | VISIBLE LIGHT COMMUNICATION APPARATUS FOR VEHICLE, SYSTEM AND METHOD FOR VEHICULAR COMMUNICATION INSIDE TUNNEL USING VISIBLE LIGHT COMMUNICATION - A visible light communication apparatus for a vehicle is provided. The visible light communication apparatus for the vehicle includes a vehicle optical receiver for receiving a visible light signal including a tunnel light node ID, a front passing vehicle node ID, and tunnel environment data, from a tunnel light and converting the visible light signal to an electric signal; and a vehicular visible light emitting diode unit arranged to face the optical receiver for converting vehicle speed and location information calculated by counting tunnel light node IDs received over a certain time, to a visible light signal and sending the visible light signal to the tunnel light. Using the vehicular visible light communication apparatus and the tunnel light having the visible light communication function, an efficient vehicular communication system can be built in the tunnel. | 06-30-2011 |
Sang Yub Lee, Incheon KR
Patent application number | Description | Published |
---|---|---|
20130060193 | LIQUID MEDICINE ADMINISTERING DEVICE FOR ENDOSCOPIC SURGERY, MEDICAL CONTROLLER FOR LIQUID MEDICINE, AND LIQUID MEDICINE ADMINISTERING DEVICE FOR ENDOSCOPIC SURGERY COMPRISING SAME - Disclosed are a medical controller for liquid medicine, and a liquid medicine administering device for endoscopic surgery comprising same. The liquid medicine administering device for endoscopic surgery comprises: a head member including at least one liquid medicine entrance port through which liquid medicine from a syringe is admitted, and a first gas entrance port into which gas enters from a gas supply line and which is connected to the liquid medicine entrance port; a strong member connected to the head member, and including a liquid medicine passage inserted into a human body for discharging the liquid medicine to a surgical site; and a valve unit installed on the head member to selectively communicate the liquid medicine passage with the liquid medicine entrance port or the first gas entrance port. The liquid medicine that enters through the liquid medicine entrance port is through the liquid medicine passage by means of air provided from the first as entrance port and is discharged to the surgical site. | 03-07-2013 |