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. 26, 1993
Filed:
Jul. 30, 1992
Slimane Loualiche, Lannion, FR;
Fabrice Clerot, Lannion, FR;
France Telecom, Paris, FR;
Abstract
A system for measuring an electrical signal in a frequency range substantially equal to the bandwidth the signal close to the gigahertz includes two laser sources. A first laser source emits a first light wave which is polarized, then amplitude-modulated by the electrical signal through an electro-optic medium. A second laser source emits a second light wave which is polarized, and then is combined with the amplitude-modulated wave to produce a measurement wave characterizing the phase and frequency of the electrical signal to be measured. The beat between the frequencies of the two polarized waves is checked thereby transposing the measurement wave into the frequency range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile