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. 19, 1993
Filed:
Mar. 02, 1992
Fathy F Yassa, Clifton Park, NY (US);
Steven L Garverick, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
An oversampled interpolative delta sigma analog-to-digital converter including a delta sigma modulator is provided with a cascade of bit-slice elements at the output of the modulator to form a filter/decimator. Each bit-slice element includes a filter circuit that filters the bit-rate signal in accordance with an arbitrary filter impulse response input signal to provide the converter with a filter characteristic that can be controllably varied without modifying the filter hardware. In each bit-slice element, an adder circuit and a delay circuit decimate the bit-rate signal produced by the delta sigma modulator to provide a digital output signal at a clock cycle rate equal to the Nyquist rate. The filter/decimator also provides encoding of the delta sigma output in 2's complement format.