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. 13, 1985
Filed:
Jan. 09, 1984
Charles M Puckette, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
An improved digital data demodulator, capable of properly detecting Manchester-encoded FSK received signals or chirped-frequency-modulated received signals, utilizes a multiplexer for switching the clock signals, to a pair of counters, from one of the mixing means receiving the input and phase-quadrature local reference signals, at a time essentially at the middle of each bit time interval expected for the incoming data signal, and is insensitive to time base jitter or other sources of timing error. In all embodiments, the transmission frequency and data bit rate are determined by externally-supplied reference frequencies, to allow a single demodulator to be utilized with a multiplicity of digital data signals having differing characteristics.