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:
May. 09, 1989
Filed:
Apr. 16, 1987
Jean Lassaux, Lannion, FR;
Thierry Stephan, Lannion, FR;
Abstract
The apparatus for detecting and discriminating phase jumps in a periodic signal comprises, arranged in cascade between an input terminal (1) and an output terminal (2), a frequency converter (3) transforming the frequency spectrum of the input signal e(t) containing a line at the frequency f.sub.e in a continuous band spectrum whose frequency is centered around f.sub.e, an interrupter (4), a resonator (5) having a resonant frequency f.sub.0 near f.sub.e and a phasemeter (6) having detection and discrimination means. The ensemble of these elements (3-6) is controlled by a sequencer (7) which, at each period .alpha. such that .alpha.=t.sub.1 +t.sub.2, allows the phase detection and the discrimination of each phase jump of a predetermined value .DELTA..phi..sub.e which may be contained in the input signal at the frequency f.sub.e.