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. 26, 1984
Filed:
Dec. 07, 1981
Applicant:
Inventors:
Timothy M Burke, Fort Worth, TX (US);
Scott W Noble, Bedford, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375 82 ; 375 83 ; 375110 ; 375120 ; 329123 ;
Abstract
An improved digital demodulator and detector for phase-shift-keyed digital signals providing coherent detection with high sensitivity and stability on noisy channels. Digital sampling is used in conjunction with a digital phase locked loop system in which basic time increments are subtracted or added to an equilibrium timing loop to provide simultaneous carrier demodulation and bit recovery.