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:
Jun. 03, 1986
Filed:
Aug. 08, 1983
Richard C Palmer, Blawenburg, NJ (US);
RCA Corporation, Princeton, NJ (US);
Abstract
An analog-to-digital converter/demodulator consists of n delay elements, each of which has a delay period longer than a preceding delay element by a fixed amount, and n pulse coincidence detectors. A ONE-SHOT responsive to the FM signal generates a pulse for each zero crossing of the FM signal, which pulses are applied to one input of each detector and to the input terminals of the n delay elements. The output terminals of the delay elements are coupled to respective second input terminals of the coincidence detectors. The output terminals of the coincidence detectors are applied to a DECODER which provides a binary output signal corresponding to the instantaneous frequency defined by the period between successive pulses i.e., between successive zero crossings.