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:
Feb. 12, 2002
Filed:
Nov. 10, 1999
Applicant:
Inventors:
Rex C. Trammell, Andersonville, TN (US);
Russell D. Bingham, Knoxville, TN (US);
Dale A. Gedcke, Oak Ridge, TN (US);
Assignee:
PerkinElmer Instruments, Knoxville, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 1/700 ;
U.S. Cl.
CPC ...
H03H 1/700 ;
Abstract
An automatic pole-zero (APZ) adjustment circuit for an ionizing radiation spectroscopy system. An output of a preamplifier is sampled to identify the decay time constant of the preamplifier output. A correction based upon the identified decay time constant is generated by a correction signal generator and applied through either an analog pole-zero adjustment network or a programmable digital shaping filter to accomplish pole-zero correction.