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:
Jan. 18, 2022
Filed:
Jul. 10, 2019
SK Hynix Inc., Gyeonggi-do, KR;
Jiman Hong, Gyeonggi-do, KR;
SK hynix Inc., Gyeonggi-do, KR;
Abstract
A controller controls an operation of a semiconductor memory device. The controller includes an erased page search controller, a command generator, and a data receiver. The erased page search controller determines a search mode of the semiconductor memory device, selects a page to search for, among a plurality of pages, based on the search mode, and generates a search control signal corresponding to a selected page. The command generator generates a search read command for the selected page based on the search control signal. The data receiver receives, from the semiconductor memory device, search read data corresponding to the search read command. The search read command is a command for controlling the semiconductor memory device to perform a read operation by applying a read voltage to multiple word lines including a word line corresponding to the selected page.