The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2011
Filed:
Feb. 29, 2008
Byoung-gon Yu, Daejeon, KR;
Byung-do Yang, Cheongju, KR;
Seung-yun Lee, Daejeon, KR;
Sung-min Yoon, Daejeon, KR;
Young Sam Park, Daejeon, KR;
Nam Yeal Lee, Daejeon, KR;
Byoung-Gon Yu, Daejeon, KR;
Byung-Do Yang, Cheongju, KR;
Seung-Yun Lee, Daejeon, KR;
Sung-Min Yoon, Daejeon, KR;
Young Sam Park, Daejeon, KR;
Nam Yeal Lee, Daejeon, KR;
Electronics & Telecommunications Research Institute, Daejeon, KR;
Cungbuk Nat'l Univ. Industry Academic Cooperation Foundation, Cheongju, KR;
Abstract
Provided are an apparatus and method for writing data to a phase-change random access memory (PRAM) by using writing power calculation and data inversion functions, and more particularly, an apparatus and method for writing data which can minimize power consumption by calculating the power consumed while input original data or inverted data is written to a PRAM and storing the data consuming less power. A PRAM consumes a significant amount of power in order to store data in a memory cell since a large electric current is required to flow for a long period of time. According to the present invention, since the PRAM consumes different amounts of power when writing data with a value of 0 and data with a value of 1, the power consumed when input original data is stored and the power consumed when the input original data is inverted and stored are compared to each other, the data with a smaller power consumption is stored when the data is written to the PRAM as a word unit, and thus the power consumption of the PRAM can be reduced.