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. 25, 1983
Filed:
Sep. 28, 1981
Applicant:
Inventor:
Max S Hendrickson, Forest Lake, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375 82 ; 329105 ;
Abstract
A method of and apparatus for discriminator FSK signals using a tri-state phase detector is disclosed in which an input of known frequency is combined with the unknown FSK signal input and the output is fed to an integrator only after the minimum clearing time of the tri-state during each bit period. The integrator receives only the cleared signal for use in binary data signal determination thereby overcoming problems associated with lack of initial phase information at the tri-state phase detector.