The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2003
Filed:
Feb. 26, 2001
Method and apparatus for reducing microprocessor speed requirements in data acquisition applications
Applicant:
Inventor:
Michael A. Steffen, Rockford, IL (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/500 ; D06F 3/500 ;
U.S. Cl.
CPC ...
G06F 1/500 ; D06F 3/500 ;
Abstract
A method and apparatus for improving microprocessor data acquisition. Noise in analog signals is removed by a low pass filter with a variable cutoff frequency controlled to cut off all frequencies above a frequency range of interest. The filtered signal is sampled by an analog-to-digital converter at a sampling rate which is variable and controlled to sample at a rate that is at least two times the low pass filter cutoff frequency thereby reducing the rate at which data is passed to a microprocessor and reducing the need for speed in the microprocessor's processing.