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:
Dec. 05, 1989
Filed:
Feb. 10, 1989
Jean-Louis Coutures, St-Egreve, FR;
Thomson-CSF, Paris, FR;
Abstract
A charge transfer device for a linear photosensor is disclosed. It is necessary to provide for anti-dazzle devices to prevent charges, generated in excessive quantity by the photosensor, from saturating the read shift register. To prevent excess charges from being introduced into the register during the transfer between a storage gate and the register, and to enable a juxtaposition, with a small pitch, of the read elements of each photodiode of the reading device, a structure is proposed with an input diode De, and on a first side of the diode, an input gate, a storage gate and the gate for transfer to the shift register; these three elements are standard ones; on the other side, three successive gates, the first one being adjacent to a charge removal region. The potential imposed on the first of these three gates is greater than the potential imposed on the input gate of the other side of the diode.