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:
Oct. 27, 1998
Filed:
Dec. 07, 1995
Ganning Yang, Irvine, CA (US);
Stephen C Muller, San Diego, CA (US);
Virginia M Chan, Fountain Valley, CA (US);
Rockwell International Corporation, Newport Beach, CA (US);
Abstract
A system for demodulating a FSK digital signal comprising: first and second frequency detectors connected to detect the frequency of the digital signal, the first frequency detector producing an output signal whenever the digital signal is detected to have a first frequency and the second frequency detector producing an output signal whenever the digital signal is detected to have a second frequency; first and second low pass filters each having an input connected to receive the output signal produced by a respective frequency detector and an output for providing a smoothed version of the signal at the respective filter input; and signal combining circuitry connected to the outputs of the first and second filters for providing a demodulated output signal representing the FSK digital signal.