Transformation of real time data into times series and filtered real time data within a spreadsheet application
First Claim
1. A computer executable spreadsheet application for processing a plurality of time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application executable by a processor of a computer system having a memory, the spreadsheet application comprising:
- a tape function, executable by the processor, that receives the plurality of data values in order individually over time from the real time data source; and
,a tape data structure, stored in the memory and globally accessible from and independent of, any cell of the spreadsheet application, that stores each of the plurality of data values in the order received by the tape function.
9 Assignments
0 Petitions
Accused Products
Abstract
A spreadsheet application includes functions and data structures for transforming real time data items individually received over time from a real time data source into time series data globally available within the spreadsheet environment. The spreadsheet application includes a tape function operating in conjunction with a plurality of tape data structures, to store real time data items received over individually over time from a real time data source into one of the tape data structures, thereby persistently storing a set of previously received real time data items in a manner that is accessible to other functions of the spreadsheet. A plurality of filter functions and filter data structures enable computation of various statistical measures on real time data items by storing in globally accessible filter data structures information derived from a sequence of real time data items, such as a previously computed filter output, latency information describing the time intervals between real time data items, and other data, to allow the computation of a current filter output without storing all previously received real time data items. The filter and tape functions allow for various uses of real time data items without the need to provide complex macro programming.
-
Citations
16 Claims
-
1. A computer executable spreadsheet application for processing a plurality of time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application executable by a processor of a computer system having a memory, the spreadsheet application comprising:
-
a tape function, executable by the processor, that receives the plurality of data values in order individually over time from the real time data source; and
,a tape data structure, stored in the memory and globally accessible from and independent of, any cell of the spreadsheet application, that stores each of the plurality of data values in the order received by the tape function. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A computer executable spreadsheet application for processing time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application executable by a processor of a computer system having a memory, the spreadsheet application comprising:
-
a tape data structure, stored in the memory and globally accessible from, and independent of, any cell of the spreadsheet application, and having N ordered storage locations S1 to SN for a predetermined value of N for storing an ordered, predetermined number of data values; and a tape function, executable by the processor, that receives a plurality of data values individually over time from the real time data source and stores each existing data value in the tape data structure in a storage location Sj to a storage location Sj+1 for 1≦
j≦
N-1, and stores a currently received data value to storage location S1.
-
-
7. A computer executable spreadsheet application for processing time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application executable by a processor of a computer system having a memory, the spreadsheet application comprising:
-
a filter function, executable by the processor, that receives a plurality of data values individually over time from the real time data source and computes a current filter output based on a currently received data value, and a previously computed filter output stored in a filter data structure; and a filter data structure, stored in the memory and globally accessible from, and independent of, any cell of the spreadsheet application, that receives the filter output from the filter function and stores the filter output. - View Dependent Claims (8, 9, 10, 11)
-
-
12. A computer executable spreadsheet application for processing time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application having a plurality of user-editable cells, and executable by a processor of a computer system having a memory, the spreadsheet application comprising:
-
a plurality of filter functions, each invokable from within any cell of the spreadsheet application and executable by the processor in response to an input of data values from the real time data source, each filter function having an interface that specifies; a filter number of a filter data structure for storing data used or computed by the filter function; zero or more parameters for modifying computation of the filter function; a reference to the real time data source from which the filter function receives a plurality of data values individually over time; each filter function for computing a current filter output based on a currently received data value from the real time data source, and a previously computed filter output stored in the filter data structure specified by the filter number; and
,a plurality of filter data structures stored in the memory and globally accessible from, and independent of, any cell of the spreadsheet application, each filter data structure having a filter number for being referenced within the interface of a filter function, each filter data structure storing the filter output from a filter function.
-
-
13. A computer implemented method of processing in a spreadsheet application, time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application including a spreadsheet having a plurality of cells, and executable by a processor of a computer system having a memory, the method comprising:
-
storing in the memory a data structure globally accessible from, and independent of, any cell of the spreadsheet application for storing an ordered, predetermined number of data values; receiving into a cell of spreadsheet each of a plurality of data values in order over time from the real time data source; storing each data value as it is received in the cell to the data structure; and removing from the data structure each time a data value is stored, a least recently received data value in excess of the predetermined number of data values.
-
-
14. A computer implemented method of processing in a spreadsheet application, time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application including a spreadsheet having a plurality of cells and executable by a processor of a computer system having a memory, the method comprising:
-
storing in the memory a data structure globally accessible from, and independent of, any cell of the spreadsheet application for storing computed data values; receiving into a cell of the spreadsheet each of a plurality of data values in order over time from the real time data source; computing a current filter output of a filter function based on; a currently received data value from the real time data source; and a previously computed output of the filter function based on a previously received data values; and storing the current filter output in the data structure.
-
-
15. A computer implemented method of processing in a spreadsheet application, time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application including a spreadsheet having a plurality of cells and executable by a processor of a computer system having a memory, the method comprising:
-
storing in memory a data structure, globally accessible from, and independent of, any cell of the spreadsheet application, and having N ordered storage locations S1 to SN for a predetermined value of N for storing an ordered, predetermined number of data values; receiving into a cell of spreadsheet each of a plurality of data values in order over time from the real time data source; for each data value in a storage location Sj, storing the data value to a storage location Sj+1 for 1≦
j≦
N-1; andstoring each data value as it is received from the real time data source to a storage location S1 of the data structure.
-
-
16. A computer executable spreadsheet application for processing time dependent data values generated by a real time data source external to the spreadsheet application, the spreadsheet application executable by a processor of a computer system having a memory, the spreadsheet application comprising:
-
a function, executable by the processor, that receives a plurality of data values individually over time from the real time data source, and returns either a single value derived from the plurality of data values or an array of data values; and a data structure, stored in the memory, and globally accessible from and independent of, any cell of the spreadsheet application, that receives from the function the single value or the array of data values.
-
Specification