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:
Aug. 05, 2003
Filed:
Nov. 28, 2001
Philippe Pantigny, Claix, FR;
Arnaud LaFlaquire, Grenoble, FR;
Frédéric Rothan, Seyssinet, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
The invention relates to a circuit for reading charges comprising a capacitive means (C , C ) with capacitance C to store charges and means of reading a voltage sampled at the terminals of the capacitive means. The capacitive means is built up from a first capacitive means (C ) and a second capacitive means (C ) with a capacitance C less than C . The read circuit comprises means of comparing the voltage read at the terminals of the capacitive means with a threshold value (V ) and means of controlling the transfer of charges stored in the first capacitive means to the second capacitive means when the voltage read at the terminals of the capacitive means exceeds the threshold value (V ). The invention is applicable to detection of radiation in the imagery field.