Patent ID: 6772018
Filing Date: 2004-08-03
Classification: G05B

Abstract:
A data entry system for accepting manually generated data values, said system comprising:a) first and second data entry elements respectively providing first and second data entry signals responsive to a manual input applied to the respective data entry element, said second data entry signal encoding a plurality of data values dependent on the manual input; b) a phase index memory element recording an alterable phase index value; c) an indicator element receiving the value recorded in the phase index memory element and providing a unique, humanly discernable signal pattern for each phase index value; d) a phase index control element in operating relation to the phase index memory element and altering the phase index value responsive to each first data entry signal; and e) a data memory receiving the second data entry signals, said data memory having at least first and second memory locations each for storing a data value, and each memory location associated with one of the phase index values, said data memory recording the data value encoded in the second data entry signal in the memory location associated with the current value of the phase index recorded in the phase index memory element.