Title: Digital signal averager with logarithmic time base

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Claims: What is claimed is:

1. A method of analyzing a kinetic action comprising the steps of:

providing periodic digital samples of information sensed during said kinetic action; and

averaging said periodic digital samples of information over exponentially increasing time intervals to obtain measurements of said kinetic action over several time decades.

2. The method of claim 1, wherein said averaging is provided over time intervals increasing by the power of two.

3. A method of analyzing a kinetic action comprising the steps of:

sensing said kinetic action and providing a corresponding output signal;

periodically integrating said output signal over time segments of discrete length to provide periodic information samples related to said kinetic action;

converting said periodic information samples into a digital signal; and

averaging said periodic information samples over exponentially increasing time intervals each corresponding to a plurality of said linear time segments.

4. The method of claim 3, wherein said averaging is provided over time intervals increasing by the power of two.

5. The method of claim 3, wherein said averaging includes the steps of:

summing said periodic information samples over time intervals increasing by the power of two; and

dividing said sum for each time interval by the corresponding number of said time segments of discrete length in each of said respective time intervals.

6. Apparatus for analyzing information sensed during a kinetic action comprising:

means for providing periodic digital samples of said information; and

means for averaging said periodic digital samples of information over exponentially increasing time intervals.

7. Apparatus for analyzing information sensed during a kinetic action comprising:

means for periodically integrating said information over discrete linear time segments to provide periodic information samples;

means for converting said periodic information into a digital signal;

means for summing said periodic information samples over time intervals increasing by the power of two; and

means for dividing said sum for each of said time intervals by the corresponding number of said time segments in each of said respective time intervals.

8. Apparatus for analyzing information sensed during a kinetic action comprising:

means for sensing said kinetic action and providing a corresponding output signal;

means for periodically integrating said output signal over time segments of discrete length to provide periodic information samples related to said kinetic action;

means for converting said periodic information samples into a digital signal; and

means for averaging said periodic information samples over exponentially increasing time intervals each corresponding to a plurality of said linear time segments.

9. Apparatus as claimed in claim 8, including means for averaging said periodic information samples over time intervals increasing by the power of two.
Other info:

Inventors: Debrunner, Peter (Urbana, IL, US)
Frauenfelder, Hans (Urbana, IL, US)

Application Number: 501798
Filing Date: 1974-08-29
Publication_date: 1976-02-10
Assignee: University of Illinois Foundation (Urbana, IL)
Primary Class(es): 702/199 708/445
Other Classes:
US Patent Ref:

3182181	May, 1965	Schumann	235/164.
3484591	Dec, 1969	Trimble	235/152.
3576985	May, 1971	Lawrence	235/181.
3598980	Aug, 1971	Lawrence et al.	235/181.
3705297	Dec, 1972	John	235/152.

Other Refs:
Primary Examiner: Ruggiero, Joseph F.
Assistant Examiner:
Attorney: Merriam, Marshall, Shapiro & Klose