Gwangju, South Korea
Gwangju, South Korea

Chosun University joseon daehakgyo) is one of the oldest and private universities in South Korea. Its campus is situated in Gwangju metropolitan city, in southwestern South Korea. The current president is Joen Ho-Jong. Around 33,000 students are enrolled. Wikipedia.


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Disclosed are a fault-localization and error-correction method for a self-checking binary signed-digit adder and a digital logic circuit for performing the method. More specifically, a fault-localization and error-correction method for a self-checking binary signed-digit adder in which a stuck-at fault of the self-checking binary signed-digit adder may be detected at low cost and with low complexity and in which an error may be autonomously corrected using the self-dual concept, and a digital logic circuit for performing the method are disclosed.


Patent
Hyundai Motor Company, Kia Motors, Chosun University and Snu R&Db Foundation | Date: 2015-07-02

A method of performing cross-authentication in a vehicle controller interworking with an external device includes: generating a random number S and transmitting the random number S to the external device according to an authentication request message received from the external device; generating a variable i using a first function having the random number S as a parameter; generating a first session key Ks using a second function having the variable i and a pre-stored secret key K as parameters; receiving a first response key from the external device; generating a second response key using a third function having the random number S, the variable i and the first session key Ks as parameters; and authenticating the external device based on whether the first response key is equal to the second response key.


Patent
Hyundai Motor Company, Kia Motors, Chosun University and Snu R&Db Foundation | Date: 2015-12-04

A method for detecting intrusion into an in-vehicle network using an intrusion detection system (IDS) of a vehicle includes: receiving messages of the in-vehicle network in a preset cycle, calculating a current count value per message of the received messages, receiving operation state information of the vehicle when the cycle starts, determining a normal count value per message corresponding to the operation state information, calculating a linearly approximated relative distance function per message using the current count value and the normal count value, and determining whether an intrusion state occurs by comparing the calculated linearly approximated relative distance function per message to a preset threshold value.


Patent
Hyundai Motor Company, Kia Motors, Chosun University and Snu R&Db Foundation | Date: 2015-03-26

A method of transmitting K messages using divided message authentication codes (MACs) in a controller area network (CAN) includes: generating a MAC using a first message and a specific MAC, performing a first operation with respect to j using j-th messages subsequent to the first message and a second MAC part of the generated MAC, performing a second operation with respect to j using a result of the performed first operation and a j-th subblock subsequent to a first MAC subblock among K MAC subblocks obtained by dividing a first MAC part of the generated MAC, transmitting the first message along with the first MAC subblock, and transmitting K-1 j-th messages in an order of j, each of the j-th messages being transmitted along with a j-th result of the performed second operation.


Patent
Hyundai Motor Company, Kia Motors, Chosun University and Snu R&Db Foundation | Date: 2015-02-26

A method and apparatus for authenticating packets in a controller area network (CAN) are disclosed. The method includes transmitting messages using a mixture of message authentication codes (MACs) in a controller area network (CAN). In addition, a first MAC is generated using a first message and the first MAC is divided into a first MAC part and a second MAC part. A second MAC is generated using a second message and the second MAC is divided into a third MAC part and a fourth MAC part. A linear operation is performed between the second MAC part and the third MAC part to generate a first authentication MAC. The first message is transmitted with the first MAC part and the second message is transmitted with the first authentication MAC.


Patent
Konkuk University and Chosun University | Date: 2015-09-17

The present invention relates to a system for fundamentally eliminating skin damage caused by direct radiation of a laser beam on the skin of a user and inducing a somatic sensation on the skin within a safety standard by radiating a pulse laser beam on a medium attached to the skin of the user on which the somatic sensation is desired to be induced. Particularly, the present invention relates to a somatic sensation induction system which can induce a somatic sensation of various feelings delivered to a user by adjusting an absorption coefficient of a medium contacting with the skin of a user, energy intensity and a repetition rate of a radiated laser beam and the like.


The present invention relates to a novel antibiotic peptide originated from the ribosomal protein L1 of Helicobacter pylori and a use of the same. Particularly, the novel peptide represented by SEQ. ID. NO: 4 was synthesized by replacing phenylalanine, the 12^(th )amino acid of the peptide composed of the amino acid sequence represented by SEQ. ID. NO: 3, with proline. The present inventors confirmed that the novel peptide had a significant antibacterial activity but had no cytotoxicity. In addition, the inventors confirmed that the peptide of the invention had in vivo anti-inflammatory effect, so that the novel peptide can be used as an active ingredient of a natural antibacterial agent.


Patent
Chosun University | Date: 2016-01-16

Wireless power transmitting and receiving apparatuses are described, using a superconducting coil for a resonant coil, and wireless power charging systems using the same. Wireless power charging systems described include a power source, a wireless power transmitter connected with the power source, a wireless power receiver, and a battery connected with the wireless power receiver. The wireless power transmitter includes a source coil connected with the power source, a superconducting transmitting coil into which electricity is induced by a magnetic field generated when electricity flows through the source coil, and a first conductive cooling device connected with the superconducting transmitting coil. The wireless power receiver includes a superconducting receiving coil that uses frequency resonance between the coils, a load coil into which electricity is induced by a magnetic field generated when electricity flows through the superconducting receiving coil, and a second conductive cooling device connected with the superconducting receiving coil.


A sensor for measuring biometric information includes a biometric electrode sensing biometric information in a state in which the biometric electrode is in contact with a surface of the skin; and a signal line transmitting the sensed biometric information, wherein the biometric electrode is printed on an inner surface of an item of clothing that comes into contact with a human body.


Patent
Chosun University and TAHO Pharmaceuticals Ltd. | Date: 2016-07-20

The present invention provides a transdermal delivery system, which comprises a drug-containing matrix layer comprising: galantamine or its pharmaceutically acceptable salt as an active ingredient; and a styrene-butadiene-styrene copolymer or a styrene-isoprene-styrene copolymer as an adhesive.

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