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:
Jun. 13, 2006
Filed:
Apr. 05, 2001
Philippe Pantigny, Claix, FR;
Patrick Audebert, Varces, FR;
Eric Mottin, Saint Martin le Vinoux, FR;
Frédéric Rothan, Seyssinet, FR;
Philippe Pantigny, Claix, FR;
Patrick Audebert, Varces, FR;
Eric Mottin, Saint Martin le Vinoux, FR;
Frédéric Rothan, Seyssinet, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
An image sensor with matrix readout includes a matrix of elementary photodetectors (P) connected through at least a bus (Bpel) to a remote integrator (I) which converts the signal of each elementary photodetector into a voltage. Provided between the end of the bus and the input of the integrator is an impedance matching device (D) with low output capacitance, delivering at its output, during the time for converting photodetector signal, a variation of charge which corresponds to an affine function of the charge present at the input of said matching device, wherein this charge variation is determined by: where Iinj is the instantaneous current of the bus, injected at the input of the impedance matching device, Iint is the instantaneous current at the input of the integrator and Tconv is the conversion time.