| Patent Number |
Title Of Patent |
Date Issued |
| 7594062 |
Method for changing data of a data block in a flash memory having a mapping area, a data area an |
September 22, 2009 |
| A method for flash memory management where, if changing of data of a data block recorded in a data area is requested, recording the data block having changed data in an alternative area and recording mapping information representing an address of the data block recorded in the altern |
| 7555629 |
Memory card providing hardware acceleration for read operations |
June 30, 2009 |
| A memory card comprises a memory controller connected to a non-volatile memory module. The memory controller comprises a first circuit adapted to convert a first external address into a first internal address using a program stored in an internal memory. The memory controller further |
| 6938116 |
Flash memory management method |
August 30, 2005 |
| A flash memory management method is provided. According to the method, when a request to write the predetermined data to a page to which data has been written is made, the predetermined data is written to a log block corresponding to a data block containing the page. When a request to wr |
| 5768014 |
Rear projection screen |
June 16, 1998 |
| Disclosed is a rear projection screen having improved contrast and brightness. A screen for receiving an incident projection beam from a projection lens from a rear side of the screen and for transmitting the received light toward an observer is comprised. A fresnel lens for collimat |
| 5618094 |
Projection system |
April 8, 1997 |
| A projection system has three projecting lenses that are controlled integrally. A holder having an upper plate and a lower plate is provided. A plurality of longitudinally slanted guiding holes are formed at the left and right portions of the upper and lower plate. First, second and thir |
| 5586818 |
Three dimensional projection system |
December 24, 1996 |
| Disclosed is a three dimensional projection system. A holder housing has upper and lower plates and a plurality of longitudinally inclined guiding holes inclined at predetermined angles about central axes of the upper and lower plates. First and second projecting lens holders have cylind |
| 5537170 |
Projection-lens driving apparatus with a timing belt |
July 16, 1996 |
| The projection-lens driving apparatus having a housing with a top and a bottom faces for use in a 3-beam projector includes an upper plate, an upper projection-lens holder, a pair of cross link, a pair of lower projection-lens holders, a guide bracket, a sliding plate, an upper guide |
