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:
Mar. 22, 2005
Filed:
Jun. 14, 2001
Cheng-chih Chien, Tai-Chung, TW;
Bing-fei Wu, Hsinchu, TW;
Jou-wei Fu, Hsinchu, TW;
Wen-chung Chang, Hsinchu, TW;
Cheng-Chih Chien, Tai-Chung, TW;
Bing-Fei Wu, Hsinchu, TW;
Jou-Wei Fu, Hsinchu, TW;
Wen-Chung Chang, Hsinchu, TW;
Silicon Motion, Inc., Hsinchu, TW;
Abstract
A device for prolonging the lifetime of a nonvolatile memory is applied to the connection between a host electronic machine and a nonvolatile memory device. The device includes a RAM (Random Access Memory) buffer zone, a counter, and two sets of inverters, wherein the RAM buffer zone is employed to store a unit data train temporarily; the counter is used to count the total bits of logic '0'; the inverters are used to lessen the times for readying/writing a nonvolatile memory device by inverting the unit data train based on the count (for example, when the number of logic '“s exceeds the number of logic ““s, and the state flag keeps track of whether an inversion has occurred or is needed.