Patent ID: 7117107
Filing Date: 2006-10-03
Classification: G06F,Y02D

Abstract:
1. A computerized method for protecting a data logger's volatile data from power disruptions resulting from momentary battery power source disconnects, wherein the data is stored in a volatile memory block within a data logger's digital processor system having a battery power source and a parasitic power source, said method comprising: copying data memory pointers and data logger alarm intervals from a non-volatile memory block to a volatile memory block immediately after boot-up of the system while the processor is being powered by the battery power source; erasing the non-volatile memory block immediately after said copying while the processor is being powered by the battery power source; recognizing a disruption of processor system power coming from the battery power source; and protecting the data memory pointers and data logger alarm intervals stored in the volatile memory block during the battery power source disruption by copying the volatile memory block data memory pointers and data logger alarm intervals to the non-volatile memory block while the processor is being powered by the parasitic power source.