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. 19, 1976
Filed:
Mar. 26, 1974
Applicant:
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
3402 / ; 324 / ; 235 / ; 3403 / ;
Abstract
A system for detecting the signal quality of a phase-modulated wave, in which the phase positions of the signal elements of the digital phase-modulated wave are each detected with respect to a reference phase carrier by a phase detector for developing digital output signals composed of higher digits representing the ideal quantized phase positions of the phase-modulated wave signal elements and at least one lower digit representative of the direction of phase deviation of the signal elements from the ideal quantized phase positions so that the lower digit is taken out as signal quality information of the phase-modulated wave.