Erase operations are performed on a flash memory device by monitoring the entropic nature of the flash memory device. In one implementation, flash abstraction logic, tracks how many physical sectors are free to receive data; track how many physical sectors contain data that is dirty, and compare whether...http://www.google.de/patents/US6621746?utm_source=gb-gplus-sharePatent US6621746 - Monitoring entropic conditions of a flash memory device as an indicator for invoking erasure operations
