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. 15, 1995
Filed:
May. 11, 1994
Forschungszentrum Julich GmbH, Julich, DE;
Abstract
A sampling analog-to-digital converter operating in accordance with the subranging principle and with interpolation residue coding has a coarse value of the input signal applied to an integrator through a differential analog-to-digital converter (ADC) and a summer. The residue is also supplied to this integrator by conversion of the output of the integrator to an analog signal by a DAC and subtracting that signal from the input signal, advantageously supplied to the subtractor through a time-delay unit. The output of the subtractor is fed through an analog-to-digital converter which provides the second input to the above-mentioned summer. By comparison with the internal ADCs, the sampling circuit has a greater dynamic range and higher resolution and precision. It is particularly suited for input signals with rapid rise and slow decay as obtained from semiconductor detectors of a nuclear spectrometer.