Yong-Hyeon
Yong-Hyeon Cho, Seoul KR
Patent application number | Description | Published |
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20110259236 | WHEEL-TYPE ULTRA HIGH SPEED RAILWAY SYSTEM - The wheel-type high-speed railway system includes rails provided on a railroad track and configured such that wheels provided in a bogie of a vehicle come into contact with them, a support provided on a tread surface of a railroad track between the rails, a repulsive Linear Synchronous Motor (LSM) provided between the bogie and the support and configured to improve traveling performance by reducing axle load in a high-speed region, first and second steel plates mounted on both sides of the support in inclined positions, and first and second attractive Dynamic Motion Control (DMC) magnets mounted on the bogie of the vehicle in inclined positions to correspond to the first and second steel plates, and configured to generate attractive force. | 10-27-2011 |
20110283914 | VACUUM DIVISION MANAGEMENT SYSTEM OF TUBE RAILWAY SYSTEM AND VACUUM BARRIER FILM DEVICE - Provided is a tube railway system that minimizes noise and air resistance using a sealed evacuated tube as a passage for a tube railway., thereby allowing a train to run at a very high speed. More particularly, provided is a vacuum division management system and vacuum blocking screen device for a tube railway system required to maintain vacuum (1/3 to 1/1000 of atmospheric pressure), in which the vacuum blocking screen device serves to rapidly block a passage for a tube railway with an operation signal, is installed in every fixed section or in some designated sections of the tube railway, and is driven in a specific section where problems with maintenance of the vacuum occur, where the vacuum is intentionally released, for instance, due to maintenance, or where a train is urgently stopped, thereby allowing the specific section to be isolated from the other sections and to be managed with a degree of vacuum different from those of the other sections. | 11-24-2011 |
Yong-Hyeon Hwang, Seoul KR
Patent application number | Description | Published |
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20120002056 | APPARATUS AND METHOD FOR ACTIVELY TRACKING MULTIPLE MOVING OBJECTS USING A MONITORING CAMERA - An apparatus for actively tracking an object is provided. The apparatus includes a camera unit; a motor drive for changing a shooting direction of the camera unit; and a controller for acquiring a first comparative image and a second comparative image in sequence using the camera unit, comparing the first comparative image with the second comparative image, detecting a moving direction and a speed of an identical object existing in the first and second comparative images, determining an estimated location of the object after receipt of the second comparative image based on the detected moving direction and speed, and enlarging and capturing the object in the estimated location of the object. | 01-05-2012 |
Yong-Hyeon Kim, Yongin-Si KR
Patent application number | Description | Published |
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20080229090 | Memory Card, Memory System Including the Same, and Operating Method thereof - Provided is a memory card device. The memory card device includes a flash memory and a controller. The flash memory includes a boot area storing boot data, and a user area storing user data. The controller accesses the boot area or the user area according to an external command. Boot data can be stored in a memory card integrated in an electronic device. Also, when a host requests an access to boot data/user data stored in the memory card, the boot data/user data can be accessed under control of the controller. | 09-18-2008 |
20090193191 | WRITE AND MERGE METHODS IN MEMORY CARD SYSTEMS FOR REDUCING THE NUMBER OF PAGE COPIES - A memory card system and related write method are disclosed. The method includes receiving a write request for a predetermined page; performing a write operation on a first log block that corresponds to a first data block including the page; receiving an update request for the page; and performing a write operation on a second log block that corresponds to the first data block. The memory card system includes: at least one non-volatile memory including a data block and a log block for updating the data block; and a memory controller controlling an operation of the non-volatile memory. During a write operation for a predetermined page, the controller controls writing of a first log block corresponding to a first data block including the predetermined page, and controls writing of a second log block during an update operation of the predetermined page. | 07-30-2009 |
Yong-Hyeon Kim, Gyeonggi-Do KR
Patent application number | Description | Published |
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20080316822 | MEMORY SYSTEM THAT DETECTS BIT ERRORS DUE TO READ DISTURBANCE AND METHODS THEREOF - Methods and memory systems are provided that can detect bit errors due to read disturbances. A main page of a flash memory in a memory system is read. A bit error in data that is read from the main page is detected and corrected. In parallel with reading the main page, a bit error is detected in data that is read from a dummy page of the flash memory. | 12-25-2008 |
20140115419 | MEMORY SYSTEM THAT DETECTS BIT ERRORS DUE TO READ DISTURBANCE AND METHODS THEREOF - Methods and memory systems are provided that can detect bit errors due to read disturbances. A main page of a flash memory in a memory system is read. A bit error in data that is read from the main page is detected and corrected. In parallel with reading the main page, a bit error is detected in data that is read from a dummy page of the flash memory. | 04-24-2014 |