초록 ▼

Data is digitally sampled at intervals, and these samples are stored for a fixed period. During this period the samples are also processed to select certain characteristics, such as maximum, minimum, average, etc., and these abstract indicators are stored and updated. Then, at some longer interval,

Data is digitally sampled at intervals, and these samples are stored for a fixed period. During this period the samples are also processed to select certain characteristics, such as maximum, minimum, average, etc., and these abstract indicators are stored and updated. Then, at some longer interval, the abstract is stored in another data block, and this data block of abstracts is also continuously monitored to select the maximum, minimum, etc., to produce a higher abstracted sample. The process of storage of samples and continuous selection can be repeated for even higher abstraction. Thus, the important characteristics are preserved, but the quantity of data to be stored is greatly reduced.

대표청구항 ▼

[ What is claimed is:] [1.] A method of storing data in an electronic digital system comprising the machine executed steps of:a) repeatedly detecting a condition at spaced apart time intervals to produce electrical digital representation of the detected condition for each of said spaced apart time i

[ What is claimed is:] [1.] A method of storing data in an electronic digital system comprising the machine executed steps of:a) repeatedly detecting a condition at spaced apart time intervals to produce electrical digital representation of the detected condition for each of said spaced apart time intervals,b) providing a first memory and a second memory,c) automatically storing each of said electrical digital representations in said first memory to provide stored electrical digital representations in said first memory,d) examining said stored electrical digital representations in said first memory for predetermined criteria in said stored electrical digital representations and generating predetermined first abstracted electrical digital representations from said stored electrical digital representations representing said predetermined criteria and representing a first time period much longer than one of said spaced apart time intervals including the space between consecutive said spaced apart time intervals,e) storing said first abstracted electrical digital representations in said second memory, andf) displacing some of said stored electrical digital representations in said first memory with other stored electrical digital representations after generating said first abstracted electrical digital representations,g) wherein said first abstracted electrical digital representations correspond to a maximum value and a minimum value of said condition over a plurality of said spaced apart time intervals.