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Hyunseok
Hyunseok Chang, Astoria, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20080244042 | Method and system for communicating media over a computer network - Media is partitioned into k recurring frames or packets. Recurring frames of the same position 1 to k collectively define k media substreams which may be communicated from sending computers to a receiving computer over a computer network pursuant to a substream mask. The substream mask is defined by the receiving computer. Received substreams may be communicated to subsequent computers, and/or buffered for reassembly and playback at the receiving computer. Network node lists for substream and packet mask negotiation may be communicated to the receiving computer by sending computers or a rendezvous host. | 10-02-2008 |
Hyunseok Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090153309 | SYNCHRONIZATION METHOD BETWEEN READER AND TAG - Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time. | 06-18-2009 |
| 20090153329 | METHOD OF GENERATING ACTIVATION CODE FOR RADIO FREQUENCY IDENTIFICATION TAG - Disclosed is a method of generating an activation code of a Radio Frequency Identification (RFID) tag including calculating K satisfying a condition that N is set to exceed 2 | 06-18-2009 |
| 20100013638 | APPARATUS AND METHOD FOR MANAGING PRODUCT DISTRIBUTION USING SECURITY TAG - Provided is a method and apparatus for managing a product distribution. The product distribution management method may include: reading a security key of a product from a security tag attached to the product; transferring the read security key to a security server; receiving, from the security server, first authentication information that is encrypted using the security key; receiving, from the security tag, second authentication information that is encrypted using the security key; and determining whether the security tag is duplicated, based on the first authentication information and the second authentication information. | 01-21-2010 |
| 20100014673 | RADIO FREQUENCY IDENTIFICATION (RFID) AUTHENTICATION APPARATUS HAVING AUTHENTICATION FUNCTION AND METHOD THEREOF - Disclosed are an RFID authentication apparatus having an authentication function and a method thereof. An RFID authentication method includes determining, by an authentication reader, an AES key using authentication information received from an authentication tag, generating an output key, encrypting a predetermined length of confirmation data by using the output key, transmitting the encrypted confirmation data to the authentication tag, receiving encrypted confirm response data corresponding to the confirmation data from the authentication tag to decrypt the encrypted confirm response data, and comparing the predetermined length of the confirmation data with the decrypted confirm response data to verify authenticity of the authentication tag. | 01-21-2010 |
| 20100017617 | RADIO FREQUENCY IDENTIFICATION (RFID) SECURITY APPARATUS HAVING SECURITY FUNCTION AND METHOD THEREOF - Disclosed are a radio frequency identification (RFID) security apparatus and a method thereof. According to the RFID security method, a secure tag reader performs determining an AES key using security information received from a secure tag and generating an output key using the determined AES key, decrypting AES data received from the secure tag using the output key, and encrypting data to be transmitted to the secure tag using the output key and transmitting the data, and a secure tag performs generating an output key using an AES key and security information, and transmitting the security information to a secure tag reader, encrypting data to be transmitted to the secure tag reader using the output key, and transmitting the encrypted data to the secure tag reader, and decrypting data received from the secure tag reader using the output key. | 01-21-2010 |
| 20110037568 | RFID READER, RFID TAG, AND CONTROLLING METHOD THEREOF - Disclosed are an RFID reader, an RFID tag, and a controlling method thereof. The RFID tag may include a state information generator to generate state information of the RFID tag, a receiver to receive an activation command including reference state information of the RFID tag, and a controller to activate the RFID tag based on the state information and the reference state information. The RFID tag may be selectively activated according to an inner state of the RFID tag. | 02-17-2011 |
Hyunseok Kim, Daejeon-City KR
| Patent application number | Description | Published |
|---|---|---|
| 20100308972 | COMMUNICATION METHOD FOR RADIO FREQUENCY IDENTIFICATION - Provided is a communication method for radio frequency identification (RFID). In order to transmit a command message with respect to an RFID tag, an RFID reader generates a command message comprising a command code indicating a type of command to be delivered to the RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag; and transmits the command message to the RFID tag, thereby allowing the RFID tag to immediately transmit the additional data via the response message in response to the command message. | 12-09-2010 |
Hyunseok Ko, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110090319 | Display Apparatus and Method of Driving the Same - In a display apparatus and a driving method thereof, a detector determines whether a timing controller is operated in a three-dimensional (3D) mode or a two-dimensional (2D) mode to output a first or second mode signal according to a result of the determination. A compensator compensates for a gamma value of a 3D image to be increased in response to a first mode signal when the 2D mode is converted to the 3D mode and decreases an increased gamma value to a gamma value for a 2D image in response to a second mode signal when the 3D mode is converted to the 2D mode. | 04-21-2011 |
Hyunseok Lim, Kyounggi Province KR
| Patent application number | Description | Published |
|---|---|---|
| 20080315174 | VARIABLE RESISTANCE NON-VOLATILE MEMORY CELLS AND METHODS OF FABRICATING SAME - Methods of fabricating integrated circuit memory cells and integrated circuit memory cells are disclosed. An integrated circuit memory cell can be fabricated by forming a cup-shaped electrode on sidewalls of an opening in an insulation layer and through the opening on an ohmic layer that is stacked on a conductive structure. An insulation filling member is formed that at least partially fills an interior of the electrode. The insulation filling member is formed within a range of temperatures that is sufficiently low to not substantially change resistance of the ohmic layer. A variable resistivity material is formed on the insulation filling member and is electrically connected to the electrode. | 12-25-2008 |
Hyunseok Lim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100129947 | Resistance-variable memory device, method for fabricating the same and memory system including the same - In the method of fabricating the variable-resistance memory device, a substrate including a conductive region is provided, and a preliminary lower electrode is formed on the conductive region. A lower electrode is formed by oxidizing an upper portion of the preliminary lower electrode. A phase-change material layer is formed on the lower electrode. | 05-27-2010 |
| 20110049646 | Semiconductor Device and Method of Forming the Same - Methods of forming a semiconductor device include forming an insulation layer on a semiconductor structure, forming an opening in the insulation layer, the opening having a sidewall defined by one side of the insulation layer, forming a first metal layer in the opening, at least partially exposing the sidewall of the opening by performing a wet-etching process on the first metal layer, and selectively forming a second metal layer on the etched first metal layer. An average grain size of the first metal layer is smaller than an average grain size of the second metal layer. Related semiconductor devices are also disclosed. | 03-03-2011 |
Hyunseok Park, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110006777 | ELECTRICAL LEAK DETECTING APPARATUS FOR AN ELECTRIC VEHICLE - The present invention relates to an electrical leak detecting apparatus for an electric vehicle, which is capable of not only detecting an electrical leak generated when a vehicle body is connected to the maximum potential or minimum potential of a battery pack, but also detecting which portion of the battery pack the vehicle body is connected to when an electrical leak is generated through the connection of the vehicle body and an intermediate potential of the battery pack. The electrical leak detecting apparatus for an electric vehicle according to the present invention includes: first and second switches connected to each other in series between a maximum potential terminal and a minimum potential terminal; a detection resistor having one end connected to a common contact of the first and second switches; and first and second measured potential supply units which are connected to each other in parallel between the other end of the detection resistor and the vehicle body, and which selectively provide first and second measured potentials, of different potential, to the battery pack. | 01-13-2011 |
Hyunseok Shin, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100290330 | APPARATUS AND METHOD FOR PERMANENTLY DELETING DATA OF OPTICAL DISK - The present invention relates to a method for eternally erasing data recorded on an optical disk by generating an optical scratch on the optical disk. More particularly, the present invention relates to a method for eternally erasing data recorded on an optical disk by disturbing a laser beam at a predetermined frequency and amplitude while irradiating the laser beam having a predetermined power and at the same time moving a sled. | 11-18-2010 |