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:
Sep. 29, 1998
Filed:
Aug. 23, 1996
Applicant:
Inventors:
Philippe Maige, Seyssinet-Pariset, FR;
Nicolas Lebouleux, Grenoble, FR;
Gilles Troussel, Saint Martin d'Heres, FR;
Assignee:
SGS-Thomson Microelectronics S.A., Agrate Brianza, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ; H01J / ; H03K / ;
U.S. Cl.
CPC ...
315371 ; 315403 ; 327133 ;
Abstract
A device for correcting the linearity of ramps of a saw-tooth signal provided across a capacitor, charged by a first current source and periodically discharged at a desired frequency. The device modulates the charging current of the capacitor by a correction current to render the ramps of the signal not linear. In addition, the device includes circuitry to render the correction current proportional to the current provided by the first current source.