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:
Aug. 29, 2000
Filed:
Sep. 17, 1997
Paul C Dryden, West Chester, PA (US);
Bruce D Quimby, Lincoln University, PA (US);
Hewlett-Packard, Palo Alto, CA (US);
Abstract
A method, apparatus, and article of manufacture for enhanced integration of signals, such as those generated by chromatographs. In one embodiment an approximate baseline used for integration of a signal is improved to reduce error. Alternate embodiments filter drift, noise, or both from a signal prior to integration or simulated distillation. The signals are processed according to a computer program stored in a memory. The methods include steps for subtracting an approximate baseline from the signal, defining a noise band in the resulting difference, and forming a composite baseline by substituting signal data for baseline data wherever the difference does not exceed the threshold, thus leaving the parts of the approximate baseline that correspond to signal peaks unchanged.