Abstract: An SRAM cell is constructed by 7 transistors supporting transposed reading in addition to normal reading and writing, thereby retrieving a plurality of data through one-time reading even during column-wise parallel processing as well as row-wise parallel processing. Therefore, delay caused by multiple-time reading and increase in power consumption, occurring in a conventional SRAM, can be solved.

Abstract: A method for providing a user interface through a head mounted display using eye recognition and bio-signals comprises the steps of: (a) moving a cursor to a particular location at which a user gazes by referencing the eye information obtained from a first eyeball that is one of the eyeballs of the user through a camera module when the user gazes at a particular location on an output screen; and (b) supporting in order to provide detailed selection items corresponding to an entity when a certain entity exists in the certain position by referencing the movement information obtained from the eyelid corresponding to a second eyeball that is one of the eyeballs of the user through a bio-signal acquisition module.