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:
Oct. 03, 2017
Filed:
Apr. 30, 2015
Sandisk Technologies Inc., Plano, TX (US);
Dinesh Agarwal, Bangalore, IN;
Vijay Sivasankaran, Bangalore, IN;
Sourabh Sankule, Bangalore, IN;
Vimal Kumar Jain, Bangalore, IN;
SanDisk Technologies LLC, Plano, TX (US);
Abstract
A solution for combining a portion of data from a block of single level cells to a block of multi-level cells. The solution includes identifying word lines with only valid data and word lines with non-valid data in a selected block of single level cells, copying data from word lines with valid data to a destination block of multi-level cells and copying data from word lines in the selected block of single level cells with non-valid data to a separate compaction block of single level cells. The system includes a first controller module configured to scan for word lines with only valid data and pass a bitmap identifying valid and invalid word lines to a second controller module. The second controller module is configured to perform on-chip combining of data from valid word lines, and copy data from invalid data word lines to a compaction block of single level cells.