Patent ID: 8666902
Filing Date: 2014-03-04
Classification: G06Q,G07F

Abstract:
1. A utility meter incorporating data structures including security data table parameters, the utility meter comprising: a memory storing the security data table parameters including one or more passwords, the security data table parameters associating a first read or write operation with a first password; a processing circuit disposed within the utility meter; wherein the processing circuit, when executing software instructions, is configured to: perform the first read or write operation responsive to receiving the first password from an external device; generate a security key; receive an externally generated access key without receiving the first password; generate an internal access key from the security key; determine whether the externally generated access key is the same as the internal access key; and in response to said determination and without having received the first password, perform the first read or write operation prior to expiration of a predetermined time period.