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:
Feb. 17, 1998
Filed:
Mar. 21, 1996
Christian Pitot, Boulogne, FR;
Louis Vriz, Villebon sur Yvette, FR;
Sextant Avionique, Velizy Villacoublay, FR;
Abstract
In order to convert an analog signal of digital data transmission into a digital signal, the device embodying the invention comprises a passive analog circuit comprising a capacitor charged by the analog signal via a first resistor, the voltage at the terminals of the capacitor being applied via a second resistor, at the input of a digital circuit comprising a threshold comparator applying, to a flip-flop, a logic signal which is a function of the result of the comparison with a threshold of the voltage at the input, a means for periodically applying at the input a charge or discharge pulse so as to bring the voltage at the input back to the threshold voltage, a counting circuit for periodically determining a number representative of the analog signal, obtained from subtracting the number of discharges from the number of charges.