Patent ID: 9087598
Filing Date: 2015-07-21
Classification: G06F,G11C

Abstract:
1. A method for reading a target memory sector of a memory, wherein the memory comprises a plurality of memory sectors, and wherein the plurality of memory sectors comprises the target memory sector, the method comprising: based on read data corresponding to the plurality of memory sectors of the memory, estimating first one or more reference voltages; using the first one or more reference voltages to perform a first read operation on the target memory sector; determining a decoding failure of the first read operation; in response to determining the decoding failure of the first read operation and based on read data corresponding to only the target memory sector of the plurality of memory sectors of the memory, updating the estimate of the first one or more reference voltages to generate second one or more reference voltages; and using the second one or more reference voltages to perform a second read operation on the target memory sector.